--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64Frame.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64Frame.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -63,10 +63,6 @@
// Entry frames
private static int ENTRY_FRAME_CALL_WRAPPER_OFFSET;
- // Native frames
- private static int NATIVE_FRAME_INITIAL_PARAM_OFFSET;
-
-
static {
VM.registerVMInitializedObserver(new Observer() {
public void update(Observable o, Object data) {
@@ -76,10 +72,8 @@
}
private static synchronized void initialize(TypeDataBase db) {
- int abi_minframe_size = db.lookupIntConstant("frame::abi_minframe_size").intValue();
int entry_frame_locals_size = db.lookupIntConstant("frame::entry_frame_locals_size").intValue();
int wordLength = (int) VM.getVM().getAddressSize();
- NATIVE_FRAME_INITIAL_PARAM_OFFSET = -abi_minframe_size/wordLength;
ENTRY_FRAME_CALL_WRAPPER_OFFSET = -entry_frame_locals_size/wordLength;
}
@@ -389,13 +383,6 @@
// Return address:
public Address getSenderPC() { return getSenderSP().getAddressAt(2 * VM.getVM().getAddressSize()); }
- // return address of param, zero origin index.
- // MPJ note: Appears to be unused.
- public Address getNativeParamAddr(int idx) {
- return null;
- // return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx);
- }
-
public Address getSenderSP() { return getFP(); }
public Address addressOfInterpreterFrameLocals() {
return addressOfStackSlot(INTERPRETER_FRAME_LOCALS_OFFSET);
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86Frame.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86Frame.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -63,9 +63,6 @@
// Entry frames
private static int ENTRY_FRAME_CALL_WRAPPER_OFFSET;
- // Native frames
- private static final int NATIVE_FRAME_INITIAL_PARAM_OFFSET = 2;
-
private static VMReg rbp;
static {
@@ -423,20 +420,12 @@
return addressOfStackSlot(LINK_OFFSET).getAddressAt(0);
}
- // FIXME: not implementable yet
- //inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; }
-
public Address getUnextendedSP() { return raw_unextendedSP; }
// Return address:
public Address getSenderPCAddr() { return addressOfStackSlot(RETURN_ADDR_OFFSET); }
public Address getSenderPC() { return getSenderPCAddr().getAddressAt(0); }
- // return address of param, zero origin index.
- public Address getNativeParamAddr(int idx) {
- return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx);
- }
-
public Address getSenderSP() { return addressOfStackSlot(SENDER_SP_OFFSET); }
public Address addressOfInterpreterFrameLocals() {
--- a/hotspot/make/linux/Makefile Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/make/linux/Makefile Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
#
-# Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
@@ -233,7 +233,7 @@
# Solaris 2.5.1, 2.6).
# Disable this check by setting DISABLE_HOTSPOT_OS_VERSION_CHECK=ok.
-SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 3%
+SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 3% 4%
OS_VERSION := $(shell uname -r)
EMPTY_IF_NOT_SUPPORTED = $(filter $(SUPPORTED_OS_VERSION),$(OS_VERSION))
--- a/hotspot/make/linux/makefiles/gcc.make Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/make/linux/makefiles/gcc.make Thu Mar 19 15:00:51 2015 -0700
@@ -214,6 +214,11 @@
# conversions which might affect the values. Only enable it in earlier versions.
ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
WARNING_FLAGS += -Wconversion
+ endif
+ ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 8 \) \))" "1"
+ # This flag is only known since GCC 4.3. Gcc 4.8 contains a fix so that with templates no
+ # warnings are issued: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11856
+ WARNING_FLAGS += -Wtype-limits
endif
endif
--- a/hotspot/make/windows/makefiles/projectcreator.make Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/make/windows/makefiles/projectcreator.make Thu Mar 19 15:00:51 2015 -0700
@@ -69,6 +69,7 @@
-ignorePath ppc \
-ignorePath zero \
-ignorePath aix \
+ -ignorePath aarch64 \
-hidePath .hg
--- a/hotspot/src/cpu/aarch64/vm/aarch64.ad Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/aarch64/vm/aarch64.ad Thu Mar 19 15:00:51 2015 -0700
@@ -3735,12 +3735,12 @@
interface(CONST_INTER);
%}
-// constant 'double +0.0'.
+// Double Immediate: +0.0d
operand immD0()
%{
- predicate((n->getd() == 0) &&
- (fpclassify(n->getd()) == FP_ZERO) && (signbit(n->getd()) == 0));
+ predicate(jlong_cast(n->getd()) == 0);
match(ConD);
+
op_cost(0);
format %{ %}
interface(CONST_INTER);
@@ -3765,12 +3765,12 @@
interface(CONST_INTER);
%}
-// constant 'float +0.0'.
+// Float Immediate: +0.0f.
operand immF0()
%{
- predicate((n->getf() == 0) &&
- (fpclassify(n->getf()) == FP_ZERO) && (signbit(n->getf()) == 0));
+ predicate(jint_cast(n->getf()) == 0);
match(ConF);
+
op_cost(0);
format %{ %}
interface(CONST_INTER);
--- a/hotspot/src/cpu/aarch64/vm/frame_aarch64.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/aarch64/vm/frame_aarch64.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, Red Hat Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
@@ -136,12 +136,7 @@
entry_frame_call_wrapper_offset = -8,
// we don't need a save area
- arg_reg_save_area_bytes = 0,
-
- // TODO - check that this is still correct
- // Native frames
-
- native_frame_initial_param_offset = 2
+ arg_reg_save_area_bytes = 0
};
@@ -195,9 +190,6 @@
inline address* sender_pc_addr() const;
- // return address of param, zero origin index.
- inline address* native_param_addr(int idx) const;
-
// expression stack tos if we are nested in a java call
intptr_t* interpreter_frame_last_sp() const;
--- a/hotspot/src/cpu/aarch64/vm/frame_aarch64.inline.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/aarch64/vm/frame_aarch64.inline.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, Red Hat Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
@@ -166,7 +166,6 @@
inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
-inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; }
inline intptr_t* frame::unextended_sp() const { return _unextended_sp; }
@@ -176,9 +175,6 @@
inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); }
inline address frame::sender_pc() const { return *sender_pc_addr(); }
-// return address of param, zero origin index.
-inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); }
-
#ifdef CC_INTERP
inline interpreterState frame::get_interpreterState() const {
--- a/hotspot/src/cpu/ppc/vm/ppc.ad Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/ppc/vm/ppc.ad Thu Mar 19 15:00:51 2015 -0700
@@ -4416,11 +4416,11 @@
interface(CONST_INTER);
%}
-// constant 'float +0.0'.
+// Float Immediate: +0.0f.
operand immF_0() %{
- predicate((n->getf() == 0) &&
- (fpclassify(n->getf()) == FP_ZERO) && (signbit(n->getf()) == 0));
+ predicate(jint_cast(n->getf()) == 0);
match(ConF);
+
op_cost(0);
format %{ %}
interface(CONST_INTER);
--- a/hotspot/src/cpu/sparc/vm/frame_sparc.inline.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/sparc/vm/frame_sparc.inline.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -69,8 +69,6 @@
inline intptr_t* frame::link() const { return (intptr_t *)(fp()[FP->sp_offset_in_saved_window()] + STACK_BIAS); }
-inline void frame::set_link(intptr_t* addr) { assert(link()==addr, "frame nesting is controlled by hardware"); }
-
inline intptr_t* frame::unextended_sp() const { return sp() + _sp_adjustment_by_callee; }
// return address:
--- a/hotspot/src/cpu/sparc/vm/sparc.ad Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/sparc/vm/sparc.ad Thu Mar 19 15:00:51 2015 -0700
@@ -3758,13 +3758,9 @@
interface(CONST_INTER);
%}
+// Double Immediate: +0.0d
operand immD0() %{
-#ifdef _LP64
- // on 64-bit architectures this comparision is faster
predicate(jlong_cast(n->getd()) == 0);
-#else
- predicate((n->getd() == 0) && (fpclass(n->getd()) == FP_PZERO));
-#endif
match(ConD);
op_cost(0);
@@ -3781,9 +3777,9 @@
interface(CONST_INTER);
%}
-// Float Immediate: 0
+// Float Immediate: +0.0f
operand immF0() %{
- predicate((n->getf() == 0) && (fpclass(n->getf()) == FP_PZERO));
+ predicate(jint_cast(n->getf()) == 0);
match(ConF);
op_cost(0);
--- a/hotspot/src/cpu/x86/vm/frame_x86.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/x86/vm/frame_x86.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -128,21 +128,16 @@
entry_frame_after_call_words = 28,
entry_frame_call_wrapper_offset = 2,
- arg_reg_save_area_bytes = 32, // Register argument save area
+ arg_reg_save_area_bytes = 32 // Register argument save area
#else
entry_frame_after_call_words = 13,
entry_frame_call_wrapper_offset = -6,
- arg_reg_save_area_bytes = 0,
+ arg_reg_save_area_bytes = 0
#endif // _WIN64
#else
- entry_frame_call_wrapper_offset = 2,
+ entry_frame_call_wrapper_offset = 2
#endif // AMD64
-
- // Native frames
-
- native_frame_initial_param_offset = 2
-
};
intptr_t ptr_at(int offset) const {
@@ -195,9 +190,6 @@
inline address* sender_pc_addr() const;
- // return address of param, zero origin index.
- inline address* native_param_addr(int idx) const;
-
// expression stack tos if we are nested in a java call
intptr_t* interpreter_frame_last_sp() const;
--- a/hotspot/src/cpu/x86/vm/frame_x86.inline.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/x86/vm/frame_x86.inline.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -139,8 +139,6 @@
inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
-inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; }
-
inline intptr_t* frame::unextended_sp() const { return _unextended_sp; }
@@ -149,9 +147,6 @@
inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); }
inline address frame::sender_pc() const { return *sender_pc_addr(); }
-// return address of param, zero origin index.
-inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); }
-
#ifdef CC_INTERP
inline interpreterState frame::get_interpreterState() const {
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -25,7 +25,20 @@
#include "precompiled.hpp"
#include "interp_masm_x86.hpp"
#include "interpreter/interpreter.hpp"
+#include "interpreter/interpreterRuntime.hpp"
+#include "oops/arrayOop.hpp"
+#include "oops/markOop.hpp"
#include "oops/methodData.hpp"
+#include "oops/method.hpp"
+#include "prims/jvmtiExport.hpp"
+#include "prims/jvmtiRedefineClassesTrace.hpp"
+#include "prims/jvmtiThreadState.hpp"
+#include "runtime/basicLock.hpp"
+#include "runtime/biasedLocking.hpp"
+#include "runtime/sharedRuntime.hpp"
+#include "runtime/thread.inline.hpp"
+
+// Implementation of InterpreterMacroAssembler
#ifndef CC_INTERP
void InterpreterMacroAssembler::profile_obj_type(Register obj, const Address& mdo_addr) {
@@ -227,3 +240,1637 @@
}
}
#endif
+
+#ifdef CC_INTERP
+void InterpreterMacroAssembler::get_method(Register reg) {
+ movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize)));
+ movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method)));
+}
+#endif // CC_INTERP
+
+#ifndef CC_INTERP
+void InterpreterMacroAssembler::call_VM_leaf_base(address entry_point,
+ int number_of_arguments) {
+ // interpreter specific
+ //
+ // Note: No need to save/restore bcp & locals registers
+ // since these are callee saved registers and no blocking/
+ // GC can happen in leaf calls.
+ // Further Note: DO NOT save/restore bcp/locals. If a caller has
+ // already saved them so that it can use rsi/rdi as temporaries
+ // then a save/restore here will DESTROY the copy the caller
+ // saved! There used to be a save_bcp() that only happened in
+ // the ASSERT path (no restore_bcp). Which caused bizarre failures
+ // when jvm built with ASSERTs.
+#ifdef ASSERT
+ {
+ Label L;
+ cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
+ jcc(Assembler::equal, L);
+ stop("InterpreterMacroAssembler::call_VM_leaf_base:"
+ " last_sp != NULL");
+ bind(L);
+ }
+#endif
+ // super call
+ MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments);
+ // interpreter specific
+ // LP64: Used to ASSERT that r13/r14 were equal to frame's bcp/locals
+ // but since they may not have been saved (and we don't want to
+ // save them here (see note above) the assert is invalid.
+}
+
+void InterpreterMacroAssembler::call_VM_base(Register oop_result,
+ Register java_thread,
+ Register last_java_sp,
+ address entry_point,
+ int number_of_arguments,
+ bool check_exceptions) {
+ // interpreter specific
+ //
+ // Note: Could avoid restoring locals ptr (callee saved) - however doesn't
+ // really make a difference for these runtime calls, since they are
+ // slow anyway. Btw., bcp must be saved/restored since it may change
+ // due to GC.
+ NOT_LP64(assert(java_thread == noreg , "not expecting a precomputed java thread");)
+ save_bcp();
+#ifdef ASSERT
+ {
+ Label L;
+ cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
+ jcc(Assembler::equal, L);
+ stop("InterpreterMacroAssembler::call_VM_leaf_base:"
+ " last_sp != NULL");
+ bind(L);
+ }
+#endif /* ASSERT */
+ // super call
+ MacroAssembler::call_VM_base(oop_result, noreg, last_java_sp,
+ entry_point, number_of_arguments,
+ check_exceptions);
+ // interpreter specific
+ restore_bcp();
+ restore_locals();
+}
+
+void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) {
+ if (JvmtiExport::can_pop_frame()) {
+ Label L;
+ // Initiate popframe handling only if it is not already being
+ // processed. If the flag has the popframe_processing bit set, it
+ // means that this code is called *during* popframe handling - we
+ // don't want to reenter.
+ // This method is only called just after the call into the vm in
+ // call_VM_base, so the arg registers are available.
+ Register pop_cond = NOT_LP64(java_thread) // Not clear if any other register is available on 32 bit
+ LP64_ONLY(c_rarg0);
+ movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset()));
+ testl(pop_cond, JavaThread::popframe_pending_bit);
+ jcc(Assembler::zero, L);
+ testl(pop_cond, JavaThread::popframe_processing_bit);
+ jcc(Assembler::notZero, L);
+ // Call Interpreter::remove_activation_preserving_args_entry() to get the
+ // address of the same-named entrypoint in the generated interpreter code.
+ call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry));
+ jmp(rax);
+ bind(L);
+ NOT_LP64(get_thread(java_thread);)
+ }
+}
+
+void InterpreterMacroAssembler::load_earlyret_value(TosState state) {
+ Register thread = LP64_ONLY(r15_thread) NOT_LP64(rcx);
+ NOT_LP64(get_thread(thread);)
+ movptr(rcx, Address(thread, JavaThread::jvmti_thread_state_offset()));
+ const Address tos_addr(rcx, JvmtiThreadState::earlyret_tos_offset());
+ const Address oop_addr(rcx, JvmtiThreadState::earlyret_oop_offset());
+ const Address val_addr(rcx, JvmtiThreadState::earlyret_value_offset());
+#ifdef _LP64
+ switch (state) {
+ case atos: movptr(rax, oop_addr);
+ movptr(oop_addr, (int32_t)NULL_WORD);
+ verify_oop(rax, state); break;
+ case ltos: movptr(rax, val_addr); break;
+ case btos: // fall through
+ case ctos: // fall through
+ case stos: // fall through
+ case itos: movl(rax, val_addr); break;
+ case ftos: movflt(xmm0, val_addr); break;
+ case dtos: movdbl(xmm0, val_addr); break;
+ case vtos: /* nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+ // Clean up tos value in the thread object
+ movl(tos_addr, (int) ilgl);
+ movl(val_addr, (int32_t) NULL_WORD);
+#else
+ const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset()
+ + in_ByteSize(wordSize));
+ switch (state) {
+ case atos: movptr(rax, oop_addr);
+ movptr(oop_addr, NULL_WORD);
+ verify_oop(rax, state); break;
+ case ltos:
+ movl(rdx, val_addr1); // fall through
+ case btos: // fall through
+ case ctos: // fall through
+ case stos: // fall through
+ case itos: movl(rax, val_addr); break;
+ case ftos: fld_s(val_addr); break;
+ case dtos: fld_d(val_addr); break;
+ case vtos: /* nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+#endif // _LP64
+ // Clean up tos value in the thread object
+ movl(tos_addr, (int32_t) ilgl);
+ movptr(val_addr, NULL_WORD);
+ NOT_LP64(movptr(val_addr1, NULL_WORD);)
+}
+
+
+void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) {
+ if (JvmtiExport::can_force_early_return()) {
+ Label L;
+ Register tmp = LP64_ONLY(c_rarg0) NOT_LP64(java_thread);
+ Register rthread = LP64_ONLY(r15_thread) NOT_LP64(java_thread);
+
+ movptr(tmp, Address(rthread, JavaThread::jvmti_thread_state_offset()));
+ testptr(tmp, tmp);
+ jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit;
+
+ // Initiate earlyret handling only if it is not already being processed.
+ // If the flag has the earlyret_processing bit set, it means that this code
+ // is called *during* earlyret handling - we don't want to reenter.
+ movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset()));
+ cmpl(tmp, JvmtiThreadState::earlyret_pending);
+ jcc(Assembler::notEqual, L);
+
+ // Call Interpreter::remove_activation_early_entry() to get the address of the
+ // same-named entrypoint in the generated interpreter code.
+ NOT_LP64(get_thread(java_thread);)
+ movptr(tmp, Address(rthread, JavaThread::jvmti_thread_state_offset()));
+#ifdef _LP64
+ movl(tmp, Address(tmp, JvmtiThreadState::earlyret_tos_offset()));
+ call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), tmp);
+#else
+ pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset()));
+ call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1);
+#endif // _LP64
+ jmp(rax);
+ bind(L);
+ NOT_LP64(get_thread(java_thread);)
+ }
+}
+
+void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) {
+ assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode");
+ load_unsigned_short(reg, Address(_bcp_register, bcp_offset));
+ bswapl(reg);
+ shrl(reg, 16);
+}
+
+void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index,
+ int bcp_offset,
+ size_t index_size) {
+ assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
+ if (index_size == sizeof(u2)) {
+ load_unsigned_short(index, Address(_bcp_register, bcp_offset));
+ } else if (index_size == sizeof(u4)) {
+ movl(index, Address(_bcp_register, bcp_offset));
+ // Check if the secondary index definition is still ~x, otherwise
+ // we have to change the following assembler code to calculate the
+ // plain index.
+ assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line");
+ notl(index); // convert to plain index
+ } else if (index_size == sizeof(u1)) {
+ load_unsigned_byte(index, Address(_bcp_register, bcp_offset));
+ } else {
+ ShouldNotReachHere();
+ }
+}
+
+void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
+ Register index,
+ int bcp_offset,
+ size_t index_size) {
+ assert_different_registers(cache, index);
+ get_cache_index_at_bcp(index, bcp_offset, index_size);
+ movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
+ assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
+ // convert from field index to ConstantPoolCacheEntry index
+ assert(exact_log2(in_words(ConstantPoolCacheEntry::size())) == 2, "else change next line");
+ shll(index, 2);
+}
+
+void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache,
+ Register index,
+ Register bytecode,
+ int byte_no,
+ int bcp_offset,
+ size_t index_size) {
+ get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size);
+ // We use a 32-bit load here since the layout of 64-bit words on
+ // little-endian machines allow us that.
+ movl(bytecode, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
+ const int shift_count = (1 + byte_no) * BitsPerByte;
+ assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) ||
+ (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift),
+ "correct shift count");
+ shrl(bytecode, shift_count);
+ assert(ConstantPoolCacheEntry::bytecode_1_mask == ConstantPoolCacheEntry::bytecode_2_mask, "common mask");
+ andl(bytecode, ConstantPoolCacheEntry::bytecode_1_mask);
+}
+
+void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache,
+ Register tmp,
+ int bcp_offset,
+ size_t index_size) {
+ assert(cache != tmp, "must use different register");
+ get_cache_index_at_bcp(tmp, bcp_offset, index_size);
+ assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
+ // convert from field index to ConstantPoolCacheEntry index
+ // and from word offset to byte offset
+ assert(exact_log2(in_bytes(ConstantPoolCacheEntry::size_in_bytes())) == 2 + LogBytesPerWord, "else change next line");
+ shll(tmp, 2 + LogBytesPerWord);
+ movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
+ // skip past the header
+ addptr(cache, in_bytes(ConstantPoolCache::base_offset()));
+ addptr(cache, tmp); // construct pointer to cache entry
+}
+
+// Load object from cpool->resolved_references(index)
+void InterpreterMacroAssembler::load_resolved_reference_at_index(
+ Register result, Register index) {
+ assert_different_registers(result, index);
+ // convert from field index to resolved_references() index and from
+ // word index to byte offset. Since this is a java object, it can be compressed
+ Register tmp = index; // reuse
+ shll(tmp, LogBytesPerHeapOop);
+
+ get_constant_pool(result);
+ // load pointer for resolved_references[] objArray
+ movptr(result, Address(result, ConstantPool::resolved_references_offset_in_bytes()));
+ // JNIHandles::resolve(obj);
+ movptr(result, Address(result, 0));
+ // Add in the index
+ addptr(result, tmp);
+ load_heap_oop(result, Address(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT)));
+}
+
+
+// Generate a subtype check: branch to ok_is_subtype if sub_klass is a
+// subtype of super_klass.
+//
+// Args:
+// rax: superklass
+// Rsub_klass: subklass
+//
+// Kills:
+// rcx, rdi
+void InterpreterMacroAssembler::gen_subtype_check(Register Rsub_klass,
+ Label& ok_is_subtype) {
+ assert(Rsub_klass != rax, "rax holds superklass");
+ LP64_ONLY(assert(Rsub_klass != r14, "r14 holds locals");)
+ LP64_ONLY(assert(Rsub_klass != r13, "r13 holds bcp");)
+ assert(Rsub_klass != rcx, "rcx holds 2ndary super array length");
+ assert(Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr");
+
+ // Profile the not-null value's klass.
+ profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
+
+ // Do the check.
+ check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx
+
+ // Profile the failure of the check.
+ profile_typecheck_failed(rcx); // blows rcx
+}
+
+
+#ifndef _LP64
+void InterpreterMacroAssembler::f2ieee() {
+ if (IEEEPrecision) {
+ fstp_s(Address(rsp, 0));
+ fld_s(Address(rsp, 0));
+ }
+}
+
+
+void InterpreterMacroAssembler::d2ieee() {
+ if (IEEEPrecision) {
+ fstp_d(Address(rsp, 0));
+ fld_d(Address(rsp, 0));
+ }
+}
+#endif // _LP64
+
+// Java Expression Stack
+
+void InterpreterMacroAssembler::pop_ptr(Register r) {
+ pop(r);
+}
+
+void InterpreterMacroAssembler::push_ptr(Register r) {
+ push(r);
+}
+
+void InterpreterMacroAssembler::push_i(Register r) {
+ push(r);
+}
+
+#ifdef _LP64
+void InterpreterMacroAssembler::pop_i(Register r) {
+ // XXX can't use pop currently, upper half non clean
+ movl(r, Address(rsp, 0));
+ addptr(rsp, wordSize);
+}
+
+void InterpreterMacroAssembler::pop_l(Register r) {
+ movq(r, Address(rsp, 0));
+ addptr(rsp, 2 * Interpreter::stackElementSize);
+}
+
+void InterpreterMacroAssembler::pop_f(XMMRegister r) {
+ movflt(r, Address(rsp, 0));
+ addptr(rsp, wordSize);
+}
+
+void InterpreterMacroAssembler::pop_d(XMMRegister r) {
+ movdbl(r, Address(rsp, 0));
+ addptr(rsp, 2 * Interpreter::stackElementSize);
+}
+
+void InterpreterMacroAssembler::push_l(Register r) {
+ subptr(rsp, 2 * wordSize);
+ movq(Address(rsp, 0), r);
+}
+
+void InterpreterMacroAssembler::push_f(XMMRegister r) {
+ subptr(rsp, wordSize);
+ movflt(Address(rsp, 0), r);
+}
+
+void InterpreterMacroAssembler::push_d(XMMRegister r) {
+ subptr(rsp, 2 * wordSize);
+ movdbl(Address(rsp, 0), r);
+}
+
+void InterpreterMacroAssembler::pop(TosState state) {
+ switch (state) {
+ case atos: pop_ptr(); break;
+ case btos:
+ case ctos:
+ case stos:
+ case itos: pop_i(); break;
+ case ltos: pop_l(); break;
+ case ftos: pop_f(); break;
+ case dtos: pop_d(); break;
+ case vtos: /* nothing to do */ break;
+ default: ShouldNotReachHere();
+ }
+ verify_oop(rax, state);
+}
+
+void InterpreterMacroAssembler::push(TosState state) {
+ verify_oop(rax, state);
+ switch (state) {
+ case atos: push_ptr(); break;
+ case btos:
+ case ctos:
+ case stos:
+ case itos: push_i(); break;
+ case ltos: push_l(); break;
+ case ftos: push_f(); break;
+ case dtos: push_d(); break;
+ case vtos: /* nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+}
+#else
+void InterpreterMacroAssembler::pop_i(Register r) {
+ pop(r);
+}
+
+void InterpreterMacroAssembler::pop_l(Register lo, Register hi) {
+ pop(lo);
+ pop(hi);
+}
+
+void InterpreterMacroAssembler::pop_f() {
+ fld_s(Address(rsp, 0));
+ addptr(rsp, 1 * wordSize);
+}
+
+void InterpreterMacroAssembler::pop_d() {
+ fld_d(Address(rsp, 0));
+ addptr(rsp, 2 * wordSize);
+}
+
+
+void InterpreterMacroAssembler::pop(TosState state) {
+ switch (state) {
+ case atos: pop_ptr(rax); break;
+ case btos: // fall through
+ case ctos: // fall through
+ case stos: // fall through
+ case itos: pop_i(rax); break;
+ case ltos: pop_l(rax, rdx); break;
+ case ftos: pop_f(); break;
+ case dtos: pop_d(); break;
+ case vtos: /* nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+ verify_oop(rax, state);
+}
+
+
+void InterpreterMacroAssembler::push_l(Register lo, Register hi) {
+ push(hi);
+ push(lo);
+}
+
+void InterpreterMacroAssembler::push_f() {
+ // Do not schedule for no AGI! Never write beyond rsp!
+ subptr(rsp, 1 * wordSize);
+ fstp_s(Address(rsp, 0));
+}
+
+void InterpreterMacroAssembler::push_d(Register r) {
+ // Do not schedule for no AGI! Never write beyond rsp!
+ subptr(rsp, 2 * wordSize);
+ fstp_d(Address(rsp, 0));
+}
+
+
+void InterpreterMacroAssembler::push(TosState state) {
+ verify_oop(rax, state);
+ switch (state) {
+ case atos: push_ptr(rax); break;
+ case btos: // fall through
+ case ctos: // fall through
+ case stos: // fall through
+ case itos: push_i(rax); break;
+ case ltos: push_l(rax, rdx); break;
+ case ftos: push_f(); break;
+ case dtos: push_d(rax); break;
+ case vtos: /* nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+}
+#endif // _LP64
+
+
+// Helpers for swap and dup
+void InterpreterMacroAssembler::load_ptr(int n, Register val) {
+ movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n)));
+}
+
+void InterpreterMacroAssembler::store_ptr(int n, Register val) {
+ movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val);
+}
+
+
+void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() {
+ // set sender sp
+ lea(_bcp_register, Address(rsp, wordSize));
+ // record last_sp
+ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), _bcp_register);
+}
+
+
+// Jump to from_interpreted entry of a call unless single stepping is possible
+// in this thread in which case we must call the i2i entry
+void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) {
+ prepare_to_jump_from_interpreted();
+
+ if (JvmtiExport::can_post_interpreter_events()) {
+ Label run_compiled_code;
+ // JVMTI events, such as single-stepping, are implemented partly by avoiding running
+ // compiled code in threads for which the event is enabled. Check here for
+ // interp_only_mode if these events CAN be enabled.
+ // interp_only is an int, on little endian it is sufficient to test the byte only
+ // Is a cmpl faster?
+ LP64_ONLY(temp = r15_thread;)
+ NOT_LP64(get_thread(temp);)
+ cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0);
+ jccb(Assembler::zero, run_compiled_code);
+ jmp(Address(method, Method::interpreter_entry_offset()));
+ bind(run_compiled_code);
+ }
+
+ jmp(Address(method, Method::from_interpreted_offset()));
+}
+
+// The following two routines provide a hook so that an implementation
+// can schedule the dispatch in two parts. x86 does not do this.
+void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) {
+ // Nothing x86 specific to be done here
+}
+
+void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) {
+ dispatch_next(state, step);
+}
+
+void InterpreterMacroAssembler::dispatch_base(TosState state,
+ address* table,
+ bool verifyoop) {
+ verify_FPU(1, state);
+ if (VerifyActivationFrameSize) {
+ Label L;
+ mov(rcx, rbp);
+ subptr(rcx, rsp);
+ int32_t min_frame_size =
+ (frame::link_offset - frame::interpreter_frame_initial_sp_offset) *
+ wordSize;
+ cmpptr(rcx, (int32_t)min_frame_size);
+ jcc(Assembler::greaterEqual, L);
+ stop("broken stack frame");
+ bind(L);
+ }
+ if (verifyoop) {
+ verify_oop(rax, state);
+ }
+#ifdef _LP64
+ lea(rscratch1, ExternalAddress((address)table));
+ jmp(Address(rscratch1, rbx, Address::times_8));
+#else
+ Address index(noreg, rbx, Address::times_ptr);
+ ExternalAddress tbl((address)table);
+ ArrayAddress dispatch(tbl, index);
+ jump(dispatch);
+#endif // _LP64
+}
+
+void InterpreterMacroAssembler::dispatch_only(TosState state) {
+ dispatch_base(state, Interpreter::dispatch_table(state));
+}
+
+void InterpreterMacroAssembler::dispatch_only_normal(TosState state) {
+ dispatch_base(state, Interpreter::normal_table(state));
+}
+
+void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) {
+ dispatch_base(state, Interpreter::normal_table(state), false);
+}
+
+
+void InterpreterMacroAssembler::dispatch_next(TosState state, int step) {
+ // load next bytecode (load before advancing _bcp_register to prevent AGI)
+ load_unsigned_byte(rbx, Address(_bcp_register, step));
+ // advance _bcp_register
+ increment(_bcp_register, step);
+ dispatch_base(state, Interpreter::dispatch_table(state));
+}
+
+void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) {
+ // load current bytecode
+ load_unsigned_byte(rbx, Address(_bcp_register, 0));
+ dispatch_base(state, table);
+}
+
+// remove activation
+//
+// Unlock the receiver if this is a synchronized method.
+// Unlock any Java monitors from syncronized blocks.
+// Remove the activation from the stack.
+//
+// If there are locked Java monitors
+// If throw_monitor_exception
+// throws IllegalMonitorStateException
+// Else if install_monitor_exception
+// installs IllegalMonitorStateException
+// Else
+// no error processing
+void InterpreterMacroAssembler::remove_activation(
+ TosState state,
+ Register ret_addr,
+ bool throw_monitor_exception,
+ bool install_monitor_exception,
+ bool notify_jvmdi) {
+ // Note: Registers rdx xmm0 may be in use for the
+ // result check if synchronized method
+ Label unlocked, unlock, no_unlock;
+
+ const Register rthread = LP64_ONLY(r15_thread) NOT_LP64(rcx);
+ const Register robj = LP64_ONLY(c_rarg1) NOT_LP64(rdx);
+ const Register rmon = LP64_ONLY(c_rarg1) NOT_LP64(rcx);
+ // monitor pointers need different register
+ // because rdx may have the result in it
+ NOT_LP64(get_thread(rcx);)
+
+ // get the value of _do_not_unlock_if_synchronized into rdx
+ const Address do_not_unlock_if_synchronized(rthread,
+ in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
+ movbool(rbx, do_not_unlock_if_synchronized);
+ movbool(do_not_unlock_if_synchronized, false); // reset the flag
+
+ // get method access flags
+ movptr(rcx, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
+ movl(rcx, Address(rcx, Method::access_flags_offset()));
+ testl(rcx, JVM_ACC_SYNCHRONIZED);
+ jcc(Assembler::zero, unlocked);
+
+ // Don't unlock anything if the _do_not_unlock_if_synchronized flag
+ // is set.
+ testbool(rbx);
+ jcc(Assembler::notZero, no_unlock);
+
+ // unlock monitor
+ push(state); // save result
+
+ // BasicObjectLock will be first in list, since this is a
+ // synchronized method. However, need to check that the object has
+ // not been unlocked by an explicit monitorexit bytecode.
+ const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset *
+ wordSize - (int) sizeof(BasicObjectLock));
+ // We use c_rarg1/rdx so that if we go slow path it will be the correct
+ // register for unlock_object to pass to VM directly
+ lea(robj, monitor); // address of first monitor
+
+ movptr(rax, Address(robj, BasicObjectLock::obj_offset_in_bytes()));
+ testptr(rax, rax);
+ jcc(Assembler::notZero, unlock);
+
+ pop(state);
+ if (throw_monitor_exception) {
+ // Entry already unlocked, need to throw exception
+ NOT_LP64(empty_FPU_stack();) // remove possible return value from FPU-stack, otherwise stack could overflow
+ call_VM(noreg, CAST_FROM_FN_PTR(address,
+ InterpreterRuntime::throw_illegal_monitor_state_exception));
+ should_not_reach_here();
+ } else {
+ // Monitor already unlocked during a stack unroll. If requested,
+ // install an illegal_monitor_state_exception. Continue with
+ // stack unrolling.
+ if (install_monitor_exception) {
+ NOT_LP64(empty_FPU_stack();)
+ call_VM(noreg, CAST_FROM_FN_PTR(address,
+ InterpreterRuntime::new_illegal_monitor_state_exception));
+ }
+ jmp(unlocked);
+ }
+
+ bind(unlock);
+ unlock_object(robj);
+ pop(state);
+
+ // Check that for block-structured locking (i.e., that all locked
+ // objects has been unlocked)
+ bind(unlocked);
+
+ // rax, rdx: Might contain return value
+
+ // Check that all monitors are unlocked
+ {
+ Label loop, exception, entry, restart;
+ const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
+ const Address monitor_block_top(
+ rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
+ const Address monitor_block_bot(
+ rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
+
+ bind(restart);
+ // We use c_rarg1 so that if we go slow path it will be the correct
+ // register for unlock_object to pass to VM directly
+ movptr(rmon, monitor_block_top); // points to current entry, starting
+ // with top-most entry
+ lea(rbx, monitor_block_bot); // points to word before bottom of
+ // monitor block
+ jmp(entry);
+
+ // Entry already locked, need to throw exception
+ bind(exception);
+
+ if (throw_monitor_exception) {
+ // Throw exception
+ NOT_LP64(empty_FPU_stack();)
+ MacroAssembler::call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::
+ throw_illegal_monitor_state_exception));
+ should_not_reach_here();
+ } else {
+ // Stack unrolling. Unlock object and install illegal_monitor_exception.
+ // Unlock does not block, so don't have to worry about the frame.
+ // We don't have to preserve c_rarg1 since we are going to throw an exception.
+
+ push(state);
+ mov(robj, rmon); // nop if robj and rmon are the same
+ unlock_object(robj);
+ pop(state);
+
+ if (install_monitor_exception) {
+ NOT_LP64(empty_FPU_stack();)
+ call_VM(noreg, CAST_FROM_FN_PTR(address,
+ InterpreterRuntime::
+ new_illegal_monitor_state_exception));
+ }
+
+ jmp(restart);
+ }
+
+ bind(loop);
+ // check if current entry is used
+ cmpptr(Address(rmon, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL);
+ jcc(Assembler::notEqual, exception);
+
+ addptr(rmon, entry_size); // otherwise advance to next entry
+ bind(entry);
+ cmpptr(rmon, rbx); // check if bottom reached
+ jcc(Assembler::notEqual, loop); // if not at bottom then check this entry
+ }
+
+ bind(no_unlock);
+
+ // jvmti support
+ if (notify_jvmdi) {
+ notify_method_exit(state, NotifyJVMTI); // preserve TOSCA
+ } else {
+ notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA
+ }
+
+ // remove activation
+ // get sender sp
+ movptr(rbx,
+ Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize));
+ leave(); // remove frame anchor
+ pop(ret_addr); // get return address
+ mov(rsp, rbx); // set sp to sender sp
+#ifndef _LP64
+ if (UseSSE) {
+ // float and double are returned in xmm register in SSE-mode
+ if (state == ftos && UseSSE >= 1) {
+ subptr(rsp, wordSize);
+ fstp_s(Address(rsp, 0));
+ movflt(xmm0, Address(rsp, 0));
+ addptr(rsp, wordSize);
+ } else if (state == dtos && UseSSE >= 2) {
+ subptr(rsp, 2*wordSize);
+ fstp_d(Address(rsp, 0));
+ movdbl(xmm0, Address(rsp, 0));
+ addptr(rsp, 2*wordSize);
+ }
+ }
+#endif // _LP64
+}
+#endif // !CC_INTERP
+
+void InterpreterMacroAssembler::get_method_counters(Register method,
+ Register mcs, Label& skip) {
+ Label has_counters;
+ movptr(mcs, Address(method, Method::method_counters_offset()));
+ testptr(mcs, mcs);
+ jcc(Assembler::notZero, has_counters);
+ call_VM(noreg, CAST_FROM_FN_PTR(address,
+ InterpreterRuntime::build_method_counters), method);
+ movptr(mcs, Address(method,Method::method_counters_offset()));
+ testptr(mcs, mcs);
+ jcc(Assembler::zero, skip); // No MethodCounters allocated, OutOfMemory
+ bind(has_counters);
+}
+
+
+// Lock object
+//
+// Args:
+// rdx, c_rarg1: BasicObjectLock to be used for locking
+//
+// Kills:
+// rax
+// rscratch1 (scratch regs)
+void InterpreterMacroAssembler::lock_object(Register lock_reg) {
+ assert(lock_reg == LP64_ONLY(c_rarg1) NOT_LP64(rdx),
+ "The argument is only for looks. It must be c_rarg1");
+
+ if (UseHeavyMonitors) {
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
+ lock_reg);
+ } else {
+ Label done;
+
+ const Register swap_reg = rax; // Must use rax for cmpxchg instruction
+ const Register obj_reg = LP64_ONLY(c_rarg3) NOT_LP64(rcx); // Will contain the oop
+
+ const int obj_offset = BasicObjectLock::obj_offset_in_bytes();
+ const int lock_offset = BasicObjectLock::lock_offset_in_bytes ();
+ const int mark_offset = lock_offset +
+ BasicLock::displaced_header_offset_in_bytes();
+
+ Label slow_case;
+
+ // Load object pointer into obj_reg
+ movptr(obj_reg, Address(lock_reg, obj_offset));
+
+ if (UseBiasedLocking) {
+ biased_locking_enter(lock_reg, obj_reg, swap_reg, rscratch1, false, done, &slow_case);
+ }
+
+ // Load immediate 1 into swap_reg %rax
+ movl(swap_reg, (int32_t)1);
+
+ // Load (object->mark() | 1) into swap_reg %rax
+ orptr(swap_reg, Address(obj_reg, 0));
+
+ // Save (object->mark() | 1) into BasicLock's displaced header
+ movptr(Address(lock_reg, mark_offset), swap_reg);
+
+ assert(lock_offset == 0,
+ "displached header must be first word in BasicObjectLock");
+
+ if (os::is_MP()) lock();
+ cmpxchgptr(lock_reg, Address(obj_reg, 0));
+ if (PrintBiasedLockingStatistics) {
+ cond_inc32(Assembler::zero,
+ ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
+ }
+ jcc(Assembler::zero, done);
+
+ const int zero_bits = LP64_ONLY(7) NOT_LP64(3);
+
+ // Test if the oopMark is an obvious stack pointer, i.e.,
+ // 1) (mark & zero_bits) == 0, and
+ // 2) rsp <= mark < mark + os::pagesize()
+ //
+ // These 3 tests can be done by evaluating the following
+ // expression: ((mark - rsp) & (zero_bits - os::vm_page_size())),
+ // assuming both stack pointer and pagesize have their
+ // least significant bits clear.
+ // NOTE: the oopMark is in swap_reg %rax as the result of cmpxchg
+ subptr(swap_reg, rsp);
+ andptr(swap_reg, zero_bits - os::vm_page_size());
+
+ // Save the test result, for recursive case, the result is zero
+ movptr(Address(lock_reg, mark_offset), swap_reg);
+
+ if (PrintBiasedLockingStatistics) {
+ cond_inc32(Assembler::zero,
+ ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
+ }
+ jcc(Assembler::zero, done);
+
+ bind(slow_case);
+
+ // Call the runtime routine for slow case
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
+ lock_reg);
+
+ bind(done);
+ }
+}
+
+
+// Unlocks an object. Used in monitorexit bytecode and
+// remove_activation. Throws an IllegalMonitorException if object is
+// not locked by current thread.
+//
+// Args:
+// rdx, c_rarg1: BasicObjectLock for lock
+//
+// Kills:
+// rax
+// c_rarg0, c_rarg1, c_rarg2, c_rarg3, ... (param regs)
+// rscratch1, rscratch2 (scratch regs)
+// rax, rbx, rcx, rdx
+void InterpreterMacroAssembler::unlock_object(Register lock_reg) {
+ assert(lock_reg == LP64_ONLY(c_rarg1) NOT_LP64(rdx),
+ "The argument is only for looks. It must be c_rarg1");
+
+ if (UseHeavyMonitors) {
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
+ lock_reg);
+ } else {
+ Label done;
+
+ const Register swap_reg = rax; // Must use rax for cmpxchg instruction
+ const Register header_reg = LP64_ONLY(c_rarg2) NOT_LP64(rbx); // Will contain the old oopMark
+ const Register obj_reg = LP64_ONLY(c_rarg3) NOT_LP64(rcx); // Will contain the oop
+
+ save_bcp(); // Save in case of exception
+
+ // Convert from BasicObjectLock structure to object and BasicLock
+ // structure Store the BasicLock address into %rax
+ lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes()));
+
+ // Load oop into obj_reg(%c_rarg3)
+ movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()));
+
+ // Free entry
+ movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD);
+
+ if (UseBiasedLocking) {
+ biased_locking_exit(obj_reg, header_reg, done);
+ }
+
+ // Load the old header from BasicLock structure
+ movptr(header_reg, Address(swap_reg,
+ BasicLock::displaced_header_offset_in_bytes()));
+
+ // Test for recursion
+ testptr(header_reg, header_reg);
+
+ // zero for recursive case
+ jcc(Assembler::zero, done);
+
+ // Atomic swap back the old header
+ if (os::is_MP()) lock();
+ cmpxchgptr(header_reg, Address(obj_reg, 0));
+
+ // zero for recursive case
+ jcc(Assembler::zero, done);
+
+ // Call the runtime routine for slow case.
+ movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()),
+ obj_reg); // restore obj
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
+ lock_reg);
+
+ bind(done);
+
+ restore_bcp();
+ }
+}
+#ifndef CC_INTERP
+void InterpreterMacroAssembler::test_method_data_pointer(Register mdp,
+ Label& zero_continue) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ movptr(mdp, Address(rbp, frame::interpreter_frame_mdp_offset * wordSize));
+ testptr(mdp, mdp);
+ jcc(Assembler::zero, zero_continue);
+}
+
+
+// Set the method data pointer for the current bcp.
+void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ Label set_mdp;
+ push(rax);
+ push(rbx);
+
+ get_method(rbx);
+ // Test MDO to avoid the call if it is NULL.
+ movptr(rax, Address(rbx, in_bytes(Method::method_data_offset())));
+ testptr(rax, rax);
+ jcc(Assembler::zero, set_mdp);
+ // rbx: method
+ // _bcp_register: bcp
+ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, _bcp_register);
+ // rax: mdi
+ // mdo is guaranteed to be non-zero here, we checked for it before the call.
+ movptr(rbx, Address(rbx, in_bytes(Method::method_data_offset())));
+ addptr(rbx, in_bytes(MethodData::data_offset()));
+ addptr(rax, rbx);
+ bind(set_mdp);
+ movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), rax);
+ pop(rbx);
+ pop(rax);
+}
+
+void InterpreterMacroAssembler::verify_method_data_pointer() {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+#ifdef ASSERT
+ Label verify_continue;
+ push(rax);
+ push(rbx);
+ Register arg3_reg = LP64_ONLY(c_rarg3) NOT_LP64(rcx);
+ Register arg2_reg = LP64_ONLY(c_rarg2) NOT_LP64(rdx);
+ push(arg3_reg);
+ push(arg2_reg);
+ test_method_data_pointer(arg3_reg, verify_continue); // If mdp is zero, continue
+ get_method(rbx);
+
+ // If the mdp is valid, it will point to a DataLayout header which is
+ // consistent with the bcp. The converse is highly probable also.
+ load_unsigned_short(arg2_reg,
+ Address(arg3_reg, in_bytes(DataLayout::bci_offset())));
+ addptr(arg2_reg, Address(rbx, Method::const_offset()));
+ lea(arg2_reg, Address(arg2_reg, ConstMethod::codes_offset()));
+ cmpptr(arg2_reg, _bcp_register);
+ jcc(Assembler::equal, verify_continue);
+ // rbx: method
+ // _bcp_register: bcp
+ // c_rarg3: mdp
+ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp),
+ rbx, _bcp_register, arg3_reg);
+ bind(verify_continue);
+ pop(arg2_reg);
+ pop(arg3_reg);
+ pop(rbx);
+ pop(rax);
+#endif // ASSERT
+}
+
+
+void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in,
+ int constant,
+ Register value) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ Address data(mdp_in, constant);
+ movptr(data, value);
+}
+
+
+void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
+ int constant,
+ bool decrement) {
+ // Counter address
+ Address data(mdp_in, constant);
+
+ increment_mdp_data_at(data, decrement);
+}
+
+void InterpreterMacroAssembler::increment_mdp_data_at(Address data,
+ bool decrement) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ // %%% this does 64bit counters at best it is wasting space
+ // at worst it is a rare bug when counters overflow
+
+ if (decrement) {
+ // Decrement the register. Set condition codes.
+ addptr(data, (int32_t) -DataLayout::counter_increment);
+ // If the decrement causes the counter to overflow, stay negative
+ Label L;
+ jcc(Assembler::negative, L);
+ addptr(data, (int32_t) DataLayout::counter_increment);
+ bind(L);
+ } else {
+ assert(DataLayout::counter_increment == 1,
+ "flow-free idiom only works with 1");
+ // Increment the register. Set carry flag.
+ addptr(data, DataLayout::counter_increment);
+ // If the increment causes the counter to overflow, pull back by 1.
+ sbbptr(data, (int32_t)0);
+ }
+}
+
+
+void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
+ Register reg,
+ int constant,
+ bool decrement) {
+ Address data(mdp_in, reg, Address::times_1, constant);
+
+ increment_mdp_data_at(data, decrement);
+}
+
+void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in,
+ int flag_byte_constant) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ int header_offset = in_bytes(DataLayout::header_offset());
+ int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant);
+ // Set the flag
+ orl(Address(mdp_in, header_offset), header_bits);
+}
+
+
+
+void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in,
+ int offset,
+ Register value,
+ Register test_value_out,
+ Label& not_equal_continue) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ if (test_value_out == noreg) {
+ cmpptr(value, Address(mdp_in, offset));
+ } else {
+ // Put the test value into a register, so caller can use it:
+ movptr(test_value_out, Address(mdp_in, offset));
+ cmpptr(test_value_out, value);
+ }
+ jcc(Assembler::notEqual, not_equal_continue);
+}
+
+
+void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in,
+ int offset_of_disp) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ Address disp_address(mdp_in, offset_of_disp);
+ addptr(mdp_in, disp_address);
+ movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
+}
+
+
+void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in,
+ Register reg,
+ int offset_of_disp) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp);
+ addptr(mdp_in, disp_address);
+ movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
+}
+
+
+void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in,
+ int constant) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ addptr(mdp_in, constant);
+ movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
+}
+
+
+void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) {
+ assert(ProfileInterpreter, "must be profiling interpreter");
+ push(return_bci); // save/restore across call_VM
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret),
+ return_bci);
+ pop(return_bci);
+}
+
+
+void InterpreterMacroAssembler::profile_taken_branch(Register mdp,
+ Register bumped_count) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ // Otherwise, assign to mdp
+ test_method_data_pointer(mdp, profile_continue);
+
+ // We are taking a branch. Increment the taken count.
+ // We inline increment_mdp_data_at to return bumped_count in a register
+ //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset()));
+ Address data(mdp, in_bytes(JumpData::taken_offset()));
+ movptr(bumped_count, data);
+ assert(DataLayout::counter_increment == 1,
+ "flow-free idiom only works with 1");
+ addptr(bumped_count, DataLayout::counter_increment);
+ sbbptr(bumped_count, 0);
+ movptr(data, bumped_count); // Store back out
+
+ // The method data pointer needs to be updated to reflect the new target.
+ update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset()));
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // We are taking a branch. Increment the not taken count.
+ increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset()));
+
+ // The method data pointer needs to be updated to correspond to
+ // the next bytecode
+ update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size()));
+ bind(profile_continue);
+ }
+}
+
+void InterpreterMacroAssembler::profile_call(Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // We are making a call. Increment the count.
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+
+ // The method data pointer needs to be updated to reflect the new target.
+ update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size()));
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_final_call(Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // We are making a call. Increment the count.
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+
+ // The method data pointer needs to be updated to reflect the new target.
+ update_mdp_by_constant(mdp,
+ in_bytes(VirtualCallData::
+ virtual_call_data_size()));
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
+ Register mdp,
+ Register reg2,
+ bool receiver_can_be_null) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ Label skip_receiver_profile;
+ if (receiver_can_be_null) {
+ Label not_null;
+ testptr(receiver, receiver);
+ jccb(Assembler::notZero, not_null);
+ // We are making a call. Increment the count for null receiver.
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+ jmp(skip_receiver_profile);
+ bind(not_null);
+ }
+
+ // Record the receiver type.
+ record_klass_in_profile(receiver, mdp, reg2, true);
+ bind(skip_receiver_profile);
+
+ // The method data pointer needs to be updated to reflect the new target.
+ update_mdp_by_constant(mdp,
+ in_bytes(VirtualCallData::
+ virtual_call_data_size()));
+ bind(profile_continue);
+ }
+}
+
+// This routine creates a state machine for updating the multi-row
+// type profile at a virtual call site (or other type-sensitive bytecode).
+// The machine visits each row (of receiver/count) until the receiver type
+// is found, or until it runs out of rows. At the same time, it remembers
+// the location of the first empty row. (An empty row records null for its
+// receiver, and can be allocated for a newly-observed receiver type.)
+// Because there are two degrees of freedom in the state, a simple linear
+// search will not work; it must be a decision tree. Hence this helper
+// function is recursive, to generate the required tree structured code.
+// It's the interpreter, so we are trading off code space for speed.
+// See below for example code.
+void InterpreterMacroAssembler::record_klass_in_profile_helper(
+ Register receiver, Register mdp,
+ Register reg2, int start_row,
+ Label& done, bool is_virtual_call) {
+ if (TypeProfileWidth == 0) {
+ if (is_virtual_call) {
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+ }
+ return;
+ }
+
+ int last_row = VirtualCallData::row_limit() - 1;
+ assert(start_row <= last_row, "must be work left to do");
+ // Test this row for both the receiver and for null.
+ // Take any of three different outcomes:
+ // 1. found receiver => increment count and goto done
+ // 2. found null => keep looking for case 1, maybe allocate this cell
+ // 3. found something else => keep looking for cases 1 and 2
+ // Case 3 is handled by a recursive call.
+ for (int row = start_row; row <= last_row; row++) {
+ Label next_test;
+ bool test_for_null_also = (row == start_row);
+
+ // See if the receiver is receiver[n].
+ int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row));
+ test_mdp_data_at(mdp, recvr_offset, receiver,
+ (test_for_null_also ? reg2 : noreg),
+ next_test);
+ // (Reg2 now contains the receiver from the CallData.)
+
+ // The receiver is receiver[n]. Increment count[n].
+ int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row));
+ increment_mdp_data_at(mdp, count_offset);
+ jmp(done);
+ bind(next_test);
+
+ if (test_for_null_also) {
+ Label found_null;
+ // Failed the equality check on receiver[n]... Test for null.
+ testptr(reg2, reg2);
+ if (start_row == last_row) {
+ // The only thing left to do is handle the null case.
+ if (is_virtual_call) {
+ jccb(Assembler::zero, found_null);
+ // Receiver did not match any saved receiver and there is no empty row for it.
+ // Increment total counter to indicate polymorphic case.
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+ jmp(done);
+ bind(found_null);
+ } else {
+ jcc(Assembler::notZero, done);
+ }
+ break;
+ }
+ // Since null is rare, make it be the branch-taken case.
+ jcc(Assembler::zero, found_null);
+
+ // Put all the "Case 3" tests here.
+ record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call);
+
+ // Found a null. Keep searching for a matching receiver,
+ // but remember that this is an empty (unused) slot.
+ bind(found_null);
+ }
+ }
+
+ // In the fall-through case, we found no matching receiver, but we
+ // observed the receiver[start_row] is NULL.
+
+ // Fill in the receiver field and increment the count.
+ int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row));
+ set_mdp_data_at(mdp, recvr_offset, receiver);
+ int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row));
+ movl(reg2, DataLayout::counter_increment);
+ set_mdp_data_at(mdp, count_offset, reg2);
+ if (start_row > 0) {
+ jmp(done);
+ }
+}
+
+// Example state machine code for three profile rows:
+// // main copy of decision tree, rooted at row[1]
+// if (row[0].rec == rec) { row[0].incr(); goto done; }
+// if (row[0].rec != NULL) {
+// // inner copy of decision tree, rooted at row[1]
+// if (row[1].rec == rec) { row[1].incr(); goto done; }
+// if (row[1].rec != NULL) {
+// // degenerate decision tree, rooted at row[2]
+// if (row[2].rec == rec) { row[2].incr(); goto done; }
+// if (row[2].rec != NULL) { count.incr(); goto done; } // overflow
+// row[2].init(rec); goto done;
+// } else {
+// // remember row[1] is empty
+// if (row[2].rec == rec) { row[2].incr(); goto done; }
+// row[1].init(rec); goto done;
+// }
+// } else {
+// // remember row[0] is empty
+// if (row[1].rec == rec) { row[1].incr(); goto done; }
+// if (row[2].rec == rec) { row[2].incr(); goto done; }
+// row[0].init(rec); goto done;
+// }
+// done:
+
+void InterpreterMacroAssembler::record_klass_in_profile(Register receiver,
+ Register mdp, Register reg2,
+ bool is_virtual_call) {
+ assert(ProfileInterpreter, "must be profiling");
+ Label done;
+
+ record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call);
+
+ bind (done);
+}
+
+void InterpreterMacroAssembler::profile_ret(Register return_bci,
+ Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+ uint row;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // Update the total ret count.
+ increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
+
+ for (row = 0; row < RetData::row_limit(); row++) {
+ Label next_test;
+
+ // See if return_bci is equal to bci[n]:
+ test_mdp_data_at(mdp,
+ in_bytes(RetData::bci_offset(row)),
+ return_bci, noreg,
+ next_test);
+
+ // return_bci is equal to bci[n]. Increment the count.
+ increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row)));
+
+ // The method data pointer needs to be updated to reflect the new target.
+ update_mdp_by_offset(mdp,
+ in_bytes(RetData::bci_displacement_offset(row)));
+ jmp(profile_continue);
+ bind(next_test);
+ }
+
+ update_mdp_for_ret(return_bci);
+
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_null_seen(Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ set_mdp_flag_at(mdp, BitData::null_seen_byte_constant());
+
+ // The method data pointer needs to be updated.
+ int mdp_delta = in_bytes(BitData::bit_data_size());
+ if (TypeProfileCasts) {
+ mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
+ }
+ update_mdp_by_constant(mdp, mdp_delta);
+
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) {
+ if (ProfileInterpreter && TypeProfileCasts) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ int count_offset = in_bytes(CounterData::count_offset());
+ // Back up the address, since we have already bumped the mdp.
+ count_offset -= in_bytes(VirtualCallData::virtual_call_data_size());
+
+ // *Decrement* the counter. We expect to see zero or small negatives.
+ increment_mdp_data_at(mdp, count_offset, true);
+
+ bind (profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // The method data pointer needs to be updated.
+ int mdp_delta = in_bytes(BitData::bit_data_size());
+ if (TypeProfileCasts) {
+ mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
+
+ // Record the object type.
+ record_klass_in_profile(klass, mdp, reg2, false);
+ NOT_LP64(assert(reg2 == rdi, "we know how to fix this blown reg");)
+ NOT_LP64(restore_locals();) // Restore EDI
+ }
+ update_mdp_by_constant(mdp, mdp_delta);
+
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_switch_default(Register mdp) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // Update the default case count
+ increment_mdp_data_at(mdp,
+ in_bytes(MultiBranchData::default_count_offset()));
+
+ // The method data pointer needs to be updated.
+ update_mdp_by_offset(mdp,
+ in_bytes(MultiBranchData::
+ default_displacement_offset()));
+
+ bind(profile_continue);
+ }
+}
+
+
+void InterpreterMacroAssembler::profile_switch_case(Register index,
+ Register mdp,
+ Register reg2) {
+ if (ProfileInterpreter) {
+ Label profile_continue;
+
+ // If no method data exists, go to profile_continue.
+ test_method_data_pointer(mdp, profile_continue);
+
+ // Build the base (index * per_case_size_in_bytes()) +
+ // case_array_offset_in_bytes()
+ movl(reg2, in_bytes(MultiBranchData::per_case_size()));
+ imulptr(index, reg2); // XXX l ?
+ addptr(index, in_bytes(MultiBranchData::case_array_offset())); // XXX l ?
+
+ // Update the case count
+ increment_mdp_data_at(mdp,
+ index,
+ in_bytes(MultiBranchData::relative_count_offset()));
+
+ // The method data pointer needs to be updated.
+ update_mdp_by_offset(mdp,
+ index,
+ in_bytes(MultiBranchData::
+ relative_displacement_offset()));
+
+ bind(profile_continue);
+ }
+}
+
+
+
+void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) {
+ if (state == atos) {
+ MacroAssembler::verify_oop(reg);
+ }
+}
+
+void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) {
+#ifndef _LP64
+ if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth);
+#endif
+}
+
+// Jump if ((*counter_addr += increment) & mask) satisfies the condition.
+void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr,
+ int increment, Address mask,
+ Register scratch, bool preloaded,
+ Condition cond, Label* where) {
+ if (!preloaded) {
+ movl(scratch, counter_addr);
+ }
+ incrementl(scratch, increment);
+ movl(counter_addr, scratch);
+ andl(scratch, mask);
+ jcc(cond, *where);
+}
+#endif // CC_INTERP
+
+void InterpreterMacroAssembler::notify_method_entry() {
+ // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
+ // track stack depth. If it is possible to enter interp_only_mode we add
+ // the code to check if the event should be sent.
+ Register rthread = LP64_ONLY(r15_thread) NOT_LP64(rcx);
+ Register rarg = LP64_ONLY(c_rarg1) NOT_LP64(rbx);
+ if (JvmtiExport::can_post_interpreter_events()) {
+ Label L;
+ NOT_LP64(get_thread(rthread);)
+ movl(rdx, Address(rthread, JavaThread::interp_only_mode_offset()));
+ testl(rdx, rdx);
+ jcc(Assembler::zero, L);
+ call_VM(noreg, CAST_FROM_FN_PTR(address,
+ InterpreterRuntime::post_method_entry));
+ bind(L);
+ }
+
+ {
+ SkipIfEqual skip(this, &DTraceMethodProbes, false);
+ NOT_LP64(get_thread(rthread);)
+ get_method(rarg);
+ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
+ rthread, rarg);
+ }
+
+ // RedefineClasses() tracing support for obsolete method entry
+ if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) {
+ NOT_LP64(get_thread(rthread);)
+ get_method(rarg);
+ call_VM_leaf(
+ CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
+ rthread, rarg);
+ }
+}
+
+
+void InterpreterMacroAssembler::notify_method_exit(
+ TosState state, NotifyMethodExitMode mode) {
+ // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
+ // track stack depth. If it is possible to enter interp_only_mode we add
+ // the code to check if the event should be sent.
+ Register rthread = LP64_ONLY(r15_thread) NOT_LP64(rcx);
+ Register rarg = LP64_ONLY(c_rarg1) NOT_LP64(rbx);
+ if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
+ Label L;
+ // Note: frame::interpreter_frame_result has a dependency on how the
+ // method result is saved across the call to post_method_exit. If this
+ // is changed then the interpreter_frame_result implementation will
+ // need to be updated too.
+
+ // For c++ interpreter the result is always stored at a known location in the frame
+ // template interpreter will leave it on the top of the stack.
+ NOT_CC_INTERP(push(state);)
+ NOT_LP64(get_thread(rthread);)
+ movl(rdx, Address(rthread, JavaThread::interp_only_mode_offset()));
+ testl(rdx, rdx);
+ jcc(Assembler::zero, L);
+ call_VM(noreg,
+ CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit));
+ bind(L);
+ NOT_CC_INTERP(pop(state));
+ }
+
+ {
+ SkipIfEqual skip(this, &DTraceMethodProbes, false);
+ NOT_CC_INTERP(push(state));
+ NOT_LP64(get_thread(rthread);)
+ get_method(rarg);
+ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit),
+ rthread, rarg);
+ NOT_CC_INTERP(pop(state));
+ }
+}
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -35,12 +35,254 @@
class InterpreterMacroAssembler: public MacroAssembler {
-#ifdef TARGET_ARCH_MODEL_x86_32
-# include "interp_masm_x86_32.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_x86_64
-# include "interp_masm_x86_64.hpp"
-#endif
+#ifndef CC_INTERP
+ protected:
+ // Interpreter specific version of call_VM_base
+ virtual void call_VM_leaf_base(address entry_point,
+ int number_of_arguments);
+
+ virtual void call_VM_base(Register oop_result,
+ Register java_thread,
+ Register last_java_sp,
+ address entry_point,
+ int number_of_arguments,
+ bool check_exceptions);
+
+ virtual void check_and_handle_popframe(Register java_thread);
+ virtual void check_and_handle_earlyret(Register java_thread);
+
+ // base routine for all dispatches
+ void dispatch_base(TosState state, address* table, bool verifyoop = true);
+#endif // CC_INTERP
+
+ public:
+ InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code),
+ _locals_register(LP64_ONLY(r14) NOT_LP64(rdi)),
+ _bcp_register(LP64_ONLY(r13) NOT_LP64(rsi)) {}
+
+ void load_earlyret_value(TosState state);
+
+#ifdef CC_INTERP
+ void save_bcp() { /* not needed in c++ interpreter and harmless */ }
+ void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
+
+ // Helpers for runtime call arguments/results
+ void get_method(Register reg);
+
+#else
+
+ // Interpreter-specific registers
+ void save_bcp() {
+ movptr(Address(rbp, frame::interpreter_frame_bcp_offset * wordSize), _bcp_register);
+ }
+
+ void restore_bcp() {
+ movptr(_bcp_register, Address(rbp, frame::interpreter_frame_bcp_offset * wordSize));
+ }
+
+ void restore_locals() {
+ movptr(_locals_register, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
+ }
+
+ // Helpers for runtime call arguments/results
+ void get_method(Register reg) {
+ movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
+ }
+
+ void get_const(Register reg) {
+ get_method(reg);
+ movptr(reg, Address(reg, Method::const_offset()));
+ }
+
+ void get_constant_pool(Register reg) {
+ get_const(reg);
+ movptr(reg, Address(reg, ConstMethod::constants_offset()));
+ }
+
+ void get_constant_pool_cache(Register reg) {
+ get_constant_pool(reg);
+ movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
+ }
+
+ void get_cpool_and_tags(Register cpool, Register tags) {
+ get_constant_pool(cpool);
+ movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
+ }
+
+ void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
+ void get_cache_and_index_at_bcp(Register cache,
+ Register index,
+ int bcp_offset,
+ size_t index_size = sizeof(u2));
+ void get_cache_and_index_and_bytecode_at_bcp(Register cache,
+ Register index,
+ Register bytecode,
+ int byte_no,
+ int bcp_offset,
+ size_t index_size = sizeof(u2));
+ void get_cache_entry_pointer_at_bcp(Register cache,
+ Register tmp,
+ int bcp_offset,
+ size_t index_size = sizeof(u2));
+ void get_cache_index_at_bcp(Register index,
+ int bcp_offset,
+ size_t index_size = sizeof(u2));
+
+ // load cpool->resolved_references(index);
+ void load_resolved_reference_at_index(Register result, Register index);
+
+ NOT_LP64(void f2ieee();) // truncate ftos to 32bits
+ NOT_LP64(void d2ieee();) // truncate dtos to 64bits
+
+ // Expression stack
+ void pop_ptr(Register r = rax);
+ void pop_i(Register r = rax);
+ void push_ptr(Register r = rax);
+ void push_i(Register r = rax);
+
+#ifdef _LP64
+ void pop_l(Register r = rax);
+ void pop_f(XMMRegister r = xmm0);
+ void pop_d(XMMRegister r = xmm0);
+ void push_l(Register r = rax);
+ void push_f(XMMRegister r = xmm0);
+ void push_d(XMMRegister r = xmm0);
+#else
+ void pop_l(Register lo = rax, Register hi = rdx);
+ void pop_f();
+ void pop_d();
+
+ void push_l(Register lo = rax, Register hi = rdx);
+ void push_d(Register r = rax);
+ void push_f();
+#endif // _LP64
+
+ void pop(Register r) { ((MacroAssembler*)this)->pop(r); }
+ void push(Register r) { ((MacroAssembler*)this)->push(r); }
+ void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
+
+ void pop(TosState state); // transition vtos -> state
+ void push(TosState state); // transition state -> vtos
+
+ // These are dummies to prevent surprise implicit conversions to Register
+ void pop(void* v); // Add unimplemented ambiguous method
+ void push(void* v); // Add unimplemented ambiguous method
+
+ void empty_expression_stack() {
+ movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
+ // NULL last_sp until next java call
+ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
+ }
+
+ // Helpers for swap and dup
+ void load_ptr(int n, Register val);
+ void store_ptr(int n, Register val);
+
+ // Generate a subtype check: branch to ok_is_subtype if sub_klass is
+ // a subtype of super_klass.
+ void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
+
+ // Dispatching
+ void dispatch_prolog(TosState state, int step = 0);
+ void dispatch_epilog(TosState state, int step = 0);
+ // dispatch via rbx (assume rbx is loaded already)
+ void dispatch_only(TosState state);
+ // dispatch normal table via rbx (assume rbx is loaded already)
+ void dispatch_only_normal(TosState state);
+ void dispatch_only_noverify(TosState state);
+ // load rbx from [_bcp_register + step] and dispatch via rbx
+ void dispatch_next(TosState state, int step = 0);
+ // load rbx from [_bcp_register] and dispatch via rbx and table
+ void dispatch_via (TosState state, address* table);
+
+ // jump to an invoked target
+ void prepare_to_jump_from_interpreted();
+ void jump_from_interpreted(Register method, Register temp);
+
+ // Returning from interpreted functions
+ //
+ // Removes the current activation (incl. unlocking of monitors)
+ // and sets up the return address. This code is also used for
+ // exception unwindwing. In that case, we do not want to throw
+ // IllegalMonitorStateExceptions, since that might get us into an
+ // infinite rethrow exception loop.
+ // Additionally this code is used for popFrame and earlyReturn.
+ // In popFrame case we want to skip throwing an exception,
+ // installing an exception, and notifying jvmdi.
+ // In earlyReturn case we only want to skip throwing an exception
+ // and installing an exception.
+ void remove_activation(TosState state, Register ret_addr,
+ bool throw_monitor_exception = true,
+ bool install_monitor_exception = true,
+ bool notify_jvmdi = true);
+#endif // CC_INTERP
+ void get_method_counters(Register method, Register mcs, Label& skip);
+
+ // Object locking
+ void lock_object (Register lock_reg);
+ void unlock_object(Register lock_reg);
+
+#ifndef CC_INTERP
+
+ // Interpreter profiling operations
+ void set_method_data_pointer_for_bcp();
+ void test_method_data_pointer(Register mdp, Label& zero_continue);
+ void verify_method_data_pointer();
+
+ void set_mdp_data_at(Register mdp_in, int constant, Register value);
+ void increment_mdp_data_at(Address data, bool decrement = false);
+ void increment_mdp_data_at(Register mdp_in, int constant,
+ bool decrement = false);
+ void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
+ bool decrement = false);
+ void increment_mask_and_jump(Address counter_addr,
+ int increment, Address mask,
+ Register scratch, bool preloaded,
+ Condition cond, Label* where);
+ void set_mdp_flag_at(Register mdp_in, int flag_constant);
+ void test_mdp_data_at(Register mdp_in, int offset, Register value,
+ Register test_value_out,
+ Label& not_equal_continue);
+
+ void record_klass_in_profile(Register receiver, Register mdp,
+ Register reg2, bool is_virtual_call);
+ void record_klass_in_profile_helper(Register receiver, Register mdp,
+ Register reg2, int start_row,
+ Label& done, bool is_virtual_call);
+
+ void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
+ void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
+ void update_mdp_by_constant(Register mdp_in, int constant);
+ void update_mdp_for_ret(Register return_bci);
+
+ void profile_taken_branch(Register mdp, Register bumped_count);
+ void profile_not_taken_branch(Register mdp);
+ void profile_call(Register mdp);
+ void profile_final_call(Register mdp);
+ void profile_virtual_call(Register receiver, Register mdp,
+ Register scratch2,
+ bool receiver_can_be_null = false);
+ void profile_ret(Register return_bci, Register mdp);
+ void profile_null_seen(Register mdp);
+ void profile_typecheck(Register mdp, Register klass, Register scratch);
+ void profile_typecheck_failed(Register mdp);
+ void profile_switch_default(Register mdp);
+ void profile_switch_case(Register index_in_scratch, Register mdp,
+ Register scratch2);
+
+ // Debugging
+ // only if +VerifyOops && state == atos
+ void verify_oop(Register reg, TosState state = atos);
+ // only if +VerifyFPU && (state == ftos || state == dtos)
+ void verify_FPU(int stack_depth, TosState state = ftos);
+
+#endif // !CC_INTERP
+
+ typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
+
+ // support for jvmti/dtrace
+ void notify_method_entry();
+ void notify_method_exit(TosState state, NotifyMethodExitMode mode);
private:
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp Tue Mar 17 14:03:05 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1444 +0,0 @@
-/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "interp_masm_x86.hpp"
-#include "interpreter/interpreter.hpp"
-#include "interpreter/interpreterRuntime.hpp"
-#include "oops/arrayOop.hpp"
-#include "oops/markOop.hpp"
-#include "oops/methodData.hpp"
-#include "oops/method.hpp"
-#include "prims/jvmtiExport.hpp"
-#include "prims/jvmtiRedefineClassesTrace.hpp"
-#include "prims/jvmtiThreadState.hpp"
-#include "runtime/basicLock.hpp"
-#include "runtime/biasedLocking.hpp"
-#include "runtime/sharedRuntime.hpp"
-#include "runtime/thread.inline.hpp"
-
-
-// Implementation of InterpreterMacroAssembler
-#ifdef CC_INTERP
-void InterpreterMacroAssembler::get_method(Register reg) {
- movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize)));
- movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method)));
-}
-#endif // CC_INTERP
-
-
-#ifndef CC_INTERP
-void InterpreterMacroAssembler::call_VM_leaf_base(
- address entry_point,
- int number_of_arguments
-) {
- // interpreter specific
- //
- // Note: No need to save/restore bcp & locals (rsi & rdi) pointer
- // since these are callee saved registers and no blocking/
- // GC can happen in leaf calls.
- // Further Note: DO NOT save/restore bcp/locals. If a caller has
- // already saved them so that it can use rsi/rdi as temporaries
- // then a save/restore here will DESTROY the copy the caller
- // saved! There used to be a save_bcp() that only happened in
- // the ASSERT path (no restore_bcp). Which caused bizarre failures
- // when jvm built with ASSERTs.
-#ifdef ASSERT
- { Label L;
- cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
- jcc(Assembler::equal, L);
- stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL");
- bind(L);
- }
-#endif
- // super call
- MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments);
- // interpreter specific
-
- // Used to ASSERT that rsi/rdi were equal to frame's bcp/locals
- // but since they may not have been saved (and we don't want to
- // save them here (see note above) the assert is invalid.
-}
-
-
-void InterpreterMacroAssembler::call_VM_base(
- Register oop_result,
- Register java_thread,
- Register last_java_sp,
- address entry_point,
- int number_of_arguments,
- bool check_exceptions
-) {
-#ifdef ASSERT
- { Label L;
- cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
- jcc(Assembler::equal, L);
- stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL");
- bind(L);
- }
-#endif /* ASSERT */
- // interpreter specific
- //
- // Note: Could avoid restoring locals ptr (callee saved) - however doesn't
- // really make a difference for these runtime calls, since they are
- // slow anyway. Btw., bcp must be saved/restored since it may change
- // due to GC.
- assert(java_thread == noreg , "not expecting a precomputed java thread");
- save_bcp();
- // super call
- MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions);
- // interpreter specific
- restore_bcp();
- restore_locals();
-}
-
-
-void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) {
- if (JvmtiExport::can_pop_frame()) {
- Label L;
- // Initiate popframe handling only if it is not already being processed. If the flag
- // has the popframe_processing bit set, it means that this code is called *during* popframe
- // handling - we don't want to reenter.
- Register pop_cond = java_thread; // Not clear if any other register is available...
- movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset()));
- testl(pop_cond, JavaThread::popframe_pending_bit);
- jcc(Assembler::zero, L);
- testl(pop_cond, JavaThread::popframe_processing_bit);
- jcc(Assembler::notZero, L);
- // Call Interpreter::remove_activation_preserving_args_entry() to get the
- // address of the same-named entrypoint in the generated interpreter code.
- call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry));
- jmp(rax);
- bind(L);
- get_thread(java_thread);
- }
-}
-
-
-void InterpreterMacroAssembler::load_earlyret_value(TosState state) {
- get_thread(rcx);
- movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset()));
- const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset());
- const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset());
- const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset());
- const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset()
- + in_ByteSize(wordSize));
- switch (state) {
- case atos: movptr(rax, oop_addr);
- movptr(oop_addr, NULL_WORD);
- verify_oop(rax, state); break;
- case ltos:
- movl(rdx, val_addr1); // fall through
- case btos: // fall through
- case ctos: // fall through
- case stos: // fall through
- case itos: movl(rax, val_addr); break;
- case ftos: fld_s(val_addr); break;
- case dtos: fld_d(val_addr); break;
- case vtos: /* nothing to do */ break;
- default : ShouldNotReachHere();
- }
- // Clean up tos value in the thread object
- movl(tos_addr, (int32_t) ilgl);
- movptr(val_addr, NULL_WORD);
- NOT_LP64(movptr(val_addr1, NULL_WORD));
-}
-
-
-void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) {
- if (JvmtiExport::can_force_early_return()) {
- Label L;
- Register tmp = java_thread;
- movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset()));
- testptr(tmp, tmp);
- jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit;
-
- // Initiate earlyret handling only if it is not already being processed.
- // If the flag has the earlyret_processing bit set, it means that this code
- // is called *during* earlyret handling - we don't want to reenter.
- movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset()));
- cmpl(tmp, JvmtiThreadState::earlyret_pending);
- jcc(Assembler::notEqual, L);
-
- // Call Interpreter::remove_activation_early_entry() to get the address of the
- // same-named entrypoint in the generated interpreter code.
- get_thread(java_thread);
- movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset()));
- pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset()));
- call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1);
- jmp(rax);
- bind(L);
- get_thread(java_thread);
- }
-}
-
-
-void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) {
- assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode");
- load_unsigned_short(reg, Address(rsi, bcp_offset));
- bswapl(reg);
- shrl(reg, 16);
-}
-
-
-void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, size_t index_size) {
- assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
- if (index_size == sizeof(u2)) {
- load_unsigned_short(reg, Address(rsi, bcp_offset));
- } else if (index_size == sizeof(u4)) {
- movl(reg, Address(rsi, bcp_offset));
- // Check if the secondary index definition is still ~x, otherwise
- // we have to change the following assembler code to calculate the
- // plain index.
- assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line");
- notl(reg); // convert to plain index
- } else if (index_size == sizeof(u1)) {
- load_unsigned_byte(reg, Address(rsi, bcp_offset));
- } else {
- ShouldNotReachHere();
- }
-}
-
-
-void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index,
- int bcp_offset, size_t index_size) {
- assert_different_registers(cache, index);
- get_cache_index_at_bcp(index, bcp_offset, index_size);
- movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
- assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
- assert(exact_log2(in_words(ConstantPoolCacheEntry::size())) == 2, "else change next line");
- shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index
-}
-
-
-void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache,
- Register index,
- Register bytecode,
- int byte_no,
- int bcp_offset,
- size_t index_size) {
- get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size);
- movptr(bytecode, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
- const int shift_count = (1 + byte_no) * BitsPerByte;
- assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) ||
- (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift),
- "correct shift count");
- shrptr(bytecode, shift_count);
- assert(ConstantPoolCacheEntry::bytecode_1_mask == ConstantPoolCacheEntry::bytecode_2_mask, "common mask");
- andptr(bytecode, ConstantPoolCacheEntry::bytecode_1_mask);
-}
-
-
-void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp,
- int bcp_offset, size_t index_size) {
- assert(cache != tmp, "must use different register");
- get_cache_index_at_bcp(tmp, bcp_offset, index_size);
- assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
- // convert from field index to ConstantPoolCacheEntry index
- // and from word offset to byte offset
- assert(exact_log2(in_bytes(ConstantPoolCacheEntry::size_in_bytes())) == 2 + LogBytesPerWord, "else change next line");
- shll(tmp, 2 + LogBytesPerWord);
- movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
- // skip past the header
- addptr(cache, in_bytes(ConstantPoolCache::base_offset()));
- addptr(cache, tmp); // construct pointer to cache entry
-}
-
-// Load object from cpool->resolved_references(index)
-void InterpreterMacroAssembler::load_resolved_reference_at_index(
- Register result, Register index) {
- assert_different_registers(result, index);
- // convert from field index to resolved_references() index and from
- // word index to byte offset. Since this is a java object, it can be compressed
- Register tmp = index; // reuse
- shll(tmp, LogBytesPerHeapOop);
-
- get_constant_pool(result);
- // load pointer for resolved_references[] objArray
- movptr(result, Address(result, ConstantPool::resolved_references_offset_in_bytes()));
- // JNIHandles::resolve(obj);
- movptr(result, Address(result, 0));
- // Add in the index
- addptr(result, tmp);
- load_heap_oop(result, Address(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT)));
-}
-
- // Generate a subtype check: branch to ok_is_subtype if sub_klass is
- // a subtype of super_klass. EAX holds the super_klass. Blows ECX.
- // Resets EDI to locals. Register sub_klass cannot be any of the above.
-void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) {
- assert( Rsub_klass != rax, "rax, holds superklass" );
- assert( Rsub_klass != rcx, "used as a temp" );
- assert( Rsub_klass != rdi, "used as a temp, restored from locals" );
-
- // Profile the not-null value's klass.
- profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
-
- // Do the check.
- check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx
-
- // Profile the failure of the check.
- profile_typecheck_failed(rcx); // blows rcx
-}
-
-void InterpreterMacroAssembler::f2ieee() {
- if (IEEEPrecision) {
- fstp_s(Address(rsp, 0));
- fld_s(Address(rsp, 0));
- }
-}
-
-
-void InterpreterMacroAssembler::d2ieee() {
- if (IEEEPrecision) {
- fstp_d(Address(rsp, 0));
- fld_d(Address(rsp, 0));
- }
-}
-
-// Java Expression Stack
-
-void InterpreterMacroAssembler::pop_ptr(Register r) {
- pop(r);
-}
-
-void InterpreterMacroAssembler::pop_i(Register r) {
- pop(r);
-}
-
-void InterpreterMacroAssembler::pop_l(Register lo, Register hi) {
- pop(lo);
- pop(hi);
-}
-
-void InterpreterMacroAssembler::pop_f() {
- fld_s(Address(rsp, 0));
- addptr(rsp, 1 * wordSize);
-}
-
-void InterpreterMacroAssembler::pop_d() {
- fld_d(Address(rsp, 0));
- addptr(rsp, 2 * wordSize);
-}
-
-
-void InterpreterMacroAssembler::pop(TosState state) {
- switch (state) {
- case atos: pop_ptr(rax); break;
- case btos: // fall through
- case ctos: // fall through
- case stos: // fall through
- case itos: pop_i(rax); break;
- case ltos: pop_l(rax, rdx); break;
- case ftos: pop_f(); break;
- case dtos: pop_d(); break;
- case vtos: /* nothing to do */ break;
- default : ShouldNotReachHere();
- }
- verify_oop(rax, state);
-}
-
-void InterpreterMacroAssembler::push_ptr(Register r) {
- push(r);
-}
-
-void InterpreterMacroAssembler::push_i(Register r) {
- push(r);
-}
-
-void InterpreterMacroAssembler::push_l(Register lo, Register hi) {
- push(hi);
- push(lo);
-}
-
-void InterpreterMacroAssembler::push_f() {
- // Do not schedule for no AGI! Never write beyond rsp!
- subptr(rsp, 1 * wordSize);
- fstp_s(Address(rsp, 0));
-}
-
-void InterpreterMacroAssembler::push_d(Register r) {
- // Do not schedule for no AGI! Never write beyond rsp!
- subptr(rsp, 2 * wordSize);
- fstp_d(Address(rsp, 0));
-}
-
-
-void InterpreterMacroAssembler::push(TosState state) {
- verify_oop(rax, state);
- switch (state) {
- case atos: push_ptr(rax); break;
- case btos: // fall through
- case ctos: // fall through
- case stos: // fall through
- case itos: push_i(rax); break;
- case ltos: push_l(rax, rdx); break;
- case ftos: push_f(); break;
- case dtos: push_d(rax); break;
- case vtos: /* nothing to do */ break;
- default : ShouldNotReachHere();
- }
-}
-
-
-// Helpers for swap and dup
-void InterpreterMacroAssembler::load_ptr(int n, Register val) {
- movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n)));
-}
-
-void InterpreterMacroAssembler::store_ptr(int n, Register val) {
- movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val);
-}
-
-void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() {
- // set sender sp
- lea(rsi, Address(rsp, wordSize));
- // record last_sp
- movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi);
-}
-
-
-// Jump to from_interpreted entry of a call unless single stepping is possible
-// in this thread in which case we must call the i2i entry
-void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) {
- prepare_to_jump_from_interpreted();
-
- if (JvmtiExport::can_post_interpreter_events()) {
- Label run_compiled_code;
- // JVMTI events, such as single-stepping, are implemented partly by avoiding running
- // compiled code in threads for which the event is enabled. Check here for
- // interp_only_mode if these events CAN be enabled.
- get_thread(temp);
- // interp_only is an int, on little endian it is sufficient to test the byte only
- // Is a cmpl faster?
- cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0);
- jccb(Assembler::zero, run_compiled_code);
- jmp(Address(method, Method::interpreter_entry_offset()));
- bind(run_compiled_code);
- }
-
- jmp(Address(method, Method::from_interpreted_offset()));
-
-}
-
-
-// The following two routines provide a hook so that an implementation
-// can schedule the dispatch in two parts. Intel does not do this.
-void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) {
- // Nothing Intel-specific to be done here.
-}
-
-void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) {
- dispatch_next(state, step);
-}
-
-void InterpreterMacroAssembler::dispatch_base(TosState state, address* table,
- bool verifyoop) {
- verify_FPU(1, state);
- if (VerifyActivationFrameSize) {
- Label L;
- mov(rcx, rbp);
- subptr(rcx, rsp);
- int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize;
- cmpptr(rcx, min_frame_size);
- jcc(Assembler::greaterEqual, L);
- stop("broken stack frame");
- bind(L);
- }
- if (verifyoop) verify_oop(rax, state);
- Address index(noreg, rbx, Address::times_ptr);
- ExternalAddress tbl((address)table);
- ArrayAddress dispatch(tbl, index);
- jump(dispatch);
-}
-
-
-void InterpreterMacroAssembler::dispatch_only(TosState state) {
- dispatch_base(state, Interpreter::dispatch_table(state));
-}
-
-
-void InterpreterMacroAssembler::dispatch_only_normal(TosState state) {
- dispatch_base(state, Interpreter::normal_table(state));
-}
-
-void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) {
- dispatch_base(state, Interpreter::normal_table(state), false);
-}
-
-
-void InterpreterMacroAssembler::dispatch_next(TosState state, int step) {
- // load next bytecode (load before advancing rsi to prevent AGI)
- load_unsigned_byte(rbx, Address(rsi, step));
- // advance rsi
- increment(rsi, step);
- dispatch_base(state, Interpreter::dispatch_table(state));
-}
-
-
-void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) {
- // load current bytecode
- load_unsigned_byte(rbx, Address(rsi, 0));
- dispatch_base(state, table);
-}
-
-// remove activation
-//
-// Unlock the receiver if this is a synchronized method.
-// Unlock any Java monitors from syncronized blocks.
-// Remove the activation from the stack.
-//
-// If there are locked Java monitors
-// If throw_monitor_exception
-// throws IllegalMonitorStateException
-// Else if install_monitor_exception
-// installs IllegalMonitorStateException
-// Else
-// no error processing
-void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr,
- bool throw_monitor_exception,
- bool install_monitor_exception,
- bool notify_jvmdi) {
- // Note: Registers rax, rdx and FPU ST(0) may be in use for the result
- // check if synchronized method
- Label unlocked, unlock, no_unlock;
-
- get_thread(rcx);
- const Address do_not_unlock_if_synchronized(rcx,
- in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
-
- movbool(rbx, do_not_unlock_if_synchronized);
- mov(rdi,rbx);
- movbool(do_not_unlock_if_synchronized, false); // reset the flag
-
- movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags
- movl(rcx, Address(rbx, Method::access_flags_offset()));
-
- testl(rcx, JVM_ACC_SYNCHRONIZED);
- jcc(Assembler::zero, unlocked);
-
- // Don't unlock anything if the _do_not_unlock_if_synchronized flag
- // is set.
- mov(rcx,rdi);
- testbool(rcx);
- jcc(Assembler::notZero, no_unlock);
-
- // unlock monitor
- push(state); // save result
-
- // BasicObjectLock will be first in list, since this is a synchronized method. However, need
- // to check that the object has not been unlocked by an explicit monitorexit bytecode.
- const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock));
- lea (rdx, monitor); // address of first monitor
-
- movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes()));
- testptr(rax, rax);
- jcc (Assembler::notZero, unlock);
-
- pop(state);
- if (throw_monitor_exception) {
- empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow
-
- // Entry already unlocked, need to throw exception
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
- should_not_reach_here();
- } else {
- // Monitor already unlocked during a stack unroll.
- // If requested, install an illegal_monitor_state_exception.
- // Continue with stack unrolling.
- if (install_monitor_exception) {
- empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception));
- }
- jmp(unlocked);
- }
-
- bind(unlock);
- unlock_object(rdx);
- pop(state);
-
- // Check that for block-structured locking (i.e., that all locked objects has been unlocked)
- bind(unlocked);
-
- // rax, rdx: Might contain return value
-
- // Check that all monitors are unlocked
- {
- Label loop, exception, entry, restart;
- const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
- const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
- const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
-
- bind(restart);
- movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry
- lea(rbx, monitor_block_bot); // points to word before bottom of monitor block
- jmp(entry);
-
- // Entry already locked, need to throw exception
- bind(exception);
-
- if (throw_monitor_exception) {
- empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow
-
- // Throw exception
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
- should_not_reach_here();
- } else {
- // Stack unrolling. Unlock object and install illegal_monitor_exception
- // Unlock does not block, so don't have to worry about the frame
-
- push(state);
- mov(rdx, rcx);
- unlock_object(rdx);
- pop(state);
-
- if (install_monitor_exception) {
- empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception));
- }
-
- jmp(restart);
- }
-
- bind(loop);
- cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used
- jcc(Assembler::notEqual, exception);
-
- addptr(rcx, entry_size); // otherwise advance to next entry
- bind(entry);
- cmpptr(rcx, rbx); // check if bottom reached
- jcc(Assembler::notEqual, loop); // if not at bottom then check this entry
- }
-
- bind(no_unlock);
-
- // jvmti support
- if (notify_jvmdi) {
- notify_method_exit(state, NotifyJVMTI); // preserve TOSCA
- } else {
- notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA
- }
-
- // remove activation
- movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp
- leave(); // remove frame anchor
- pop(ret_addr); // get return address
- mov(rsp, rbx); // set sp to sender sp
- if (UseSSE) {
- // float and double are returned in xmm register in SSE-mode
- if (state == ftos && UseSSE >= 1) {
- subptr(rsp, wordSize);
- fstp_s(Address(rsp, 0));
- movflt(xmm0, Address(rsp, 0));
- addptr(rsp, wordSize);
- } else if (state == dtos && UseSSE >= 2) {
- subptr(rsp, 2*wordSize);
- fstp_d(Address(rsp, 0));
- movdbl(xmm0, Address(rsp, 0));
- addptr(rsp, 2*wordSize);
- }
- }
-}
-
-#endif /* !CC_INTERP */
-
-void InterpreterMacroAssembler::get_method_counters(Register method,
- Register mcs, Label& skip) {
- Label has_counters;
- movptr(mcs, Address(method, Method::method_counters_offset()));
- testptr(mcs, mcs);
- jcc(Assembler::notZero, has_counters);
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::build_method_counters), method);
- movptr(mcs, Address(method,Method::method_counters_offset()));
- testptr(mcs, mcs);
- jcc(Assembler::zero, skip); // No MethodCounters allocated, OutOfMemory
- bind(has_counters);
-}
-
-
-// Lock object
-//
-// Argument: rdx : Points to BasicObjectLock to be used for locking. Must
-// be initialized with object to lock
-void InterpreterMacroAssembler::lock_object(Register lock_reg) {
- assert(lock_reg == rdx, "The argument is only for looks. It must be rdx");
-
- if (UseHeavyMonitors) {
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg);
- } else {
-
- Label done;
-
- const Register swap_reg = rax; // Must use rax, for cmpxchg instruction
- const Register obj_reg = rcx; // Will contain the oop
-
- const int obj_offset = BasicObjectLock::obj_offset_in_bytes();
- const int lock_offset = BasicObjectLock::lock_offset_in_bytes ();
- const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes();
-
- Label slow_case;
-
- // Load object pointer into obj_reg %rcx
- movptr(obj_reg, Address(lock_reg, obj_offset));
-
- if (UseBiasedLocking) {
- // Note: we use noreg for the temporary register since it's hard
- // to come up with a free register on all incoming code paths
- biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case);
- }
-
- // Load immediate 1 into swap_reg %rax,
- movptr(swap_reg, (int32_t)1);
-
- // Load (object->mark() | 1) into swap_reg %rax,
- orptr(swap_reg, Address(obj_reg, 0));
-
- // Save (object->mark() | 1) into BasicLock's displaced header
- movptr(Address(lock_reg, mark_offset), swap_reg);
-
- assert(lock_offset == 0, "displached header must be first word in BasicObjectLock");
- if (os::is_MP()) {
- lock();
- }
- cmpxchgptr(lock_reg, Address(obj_reg, 0));
- if (PrintBiasedLockingStatistics) {
- cond_inc32(Assembler::zero,
- ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
- }
- jcc(Assembler::zero, done);
-
- // Test if the oopMark is an obvious stack pointer, i.e.,
- // 1) (mark & 3) == 0, and
- // 2) rsp <= mark < mark + os::pagesize()
- //
- // These 3 tests can be done by evaluating the following
- // expression: ((mark - rsp) & (3 - os::vm_page_size())),
- // assuming both stack pointer and pagesize have their
- // least significant 2 bits clear.
- // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg
- subptr(swap_reg, rsp);
- andptr(swap_reg, 3 - os::vm_page_size());
-
- // Save the test result, for recursive case, the result is zero
- movptr(Address(lock_reg, mark_offset), swap_reg);
-
- if (PrintBiasedLockingStatistics) {
- cond_inc32(Assembler::zero,
- ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
- }
- jcc(Assembler::zero, done);
-
- bind(slow_case);
-
- // Call the runtime routine for slow case
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg);
-
- bind(done);
- }
-}
-
-
-// Unlocks an object. Used in monitorexit bytecode and remove_activation.
-//
-// Argument: rdx : Points to BasicObjectLock structure for lock
-// Throw an IllegalMonitorException if object is not locked by current thread
-//
-// Uses: rax, rbx, rcx, rdx
-void InterpreterMacroAssembler::unlock_object(Register lock_reg) {
- assert(lock_reg == rdx, "The argument is only for looks. It must be rdx");
-
- if (UseHeavyMonitors) {
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg);
- } else {
- Label done;
-
- const Register swap_reg = rax; // Must use rax, for cmpxchg instruction
- const Register header_reg = rbx; // Will contain the old oopMark
- const Register obj_reg = rcx; // Will contain the oop
-
- save_bcp(); // Save in case of exception
-
- // Convert from BasicObjectLock structure to object and BasicLock structure
- // Store the BasicLock address into %rax,
- lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes()));
-
- // Load oop into obj_reg(%rcx)
- movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ()));
-
- // Free entry
- movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD);
-
- if (UseBiasedLocking) {
- biased_locking_exit(obj_reg, header_reg, done);
- }
-
- // Load the old header from BasicLock structure
- movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes()));
-
- // Test for recursion
- testptr(header_reg, header_reg);
-
- // zero for recursive case
- jcc(Assembler::zero, done);
-
- // Atomic swap back the old header
- if (os::is_MP()) lock();
- cmpxchgptr(header_reg, Address(obj_reg, 0));
-
- // zero for recursive case
- jcc(Assembler::zero, done);
-
- // Call the runtime routine for slow case.
- movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg);
-
- bind(done);
-
- restore_bcp();
- }
-}
-
-
-#ifndef CC_INTERP
-
-// Test ImethodDataPtr. If it is null, continue at the specified label
-void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- movptr(mdp, Address(rbp, frame::interpreter_frame_mdp_offset * wordSize));
- testptr(mdp, mdp);
- jcc(Assembler::zero, zero_continue);
-}
-
-
-// Set the method data pointer for the current bcp.
-void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Label set_mdp;
- push(rax);
- push(rbx);
-
- get_method(rbx);
- // Test MDO to avoid the call if it is NULL.
- movptr(rax, Address(rbx, in_bytes(Method::method_data_offset())));
- testptr(rax, rax);
- jcc(Assembler::zero, set_mdp);
- // rbx,: method
- // rsi: bcp
- call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi);
- // rax,: mdi
- // mdo is guaranteed to be non-zero here, we checked for it before the call.
- movptr(rbx, Address(rbx, in_bytes(Method::method_data_offset())));
- addptr(rbx, in_bytes(MethodData::data_offset()));
- addptr(rax, rbx);
- bind(set_mdp);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), rax);
- pop(rbx);
- pop(rax);
-}
-
-void InterpreterMacroAssembler::verify_method_data_pointer() {
- assert(ProfileInterpreter, "must be profiling interpreter");
-#ifdef ASSERT
- Label verify_continue;
- push(rax);
- push(rbx);
- push(rcx);
- push(rdx);
- test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue
- get_method(rbx);
-
- // If the mdp is valid, it will point to a DataLayout header which is
- // consistent with the bcp. The converse is highly probable also.
- load_unsigned_short(rdx, Address(rcx, in_bytes(DataLayout::bci_offset())));
- addptr(rdx, Address(rbx, Method::const_offset()));
- lea(rdx, Address(rdx, ConstMethod::codes_offset()));
- cmpptr(rdx, rsi);
- jcc(Assembler::equal, verify_continue);
- // rbx,: method
- // rsi: bcp
- // rcx: mdp
- call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx);
- bind(verify_continue);
- pop(rdx);
- pop(rcx);
- pop(rbx);
- pop(rax);
-#endif // ASSERT
-}
-
-
-void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) {
- // %%% this seems to be used to store counter data which is surely 32bits
- // however 64bit side stores 64 bits which seems wrong
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address data(mdp_in, constant);
- movptr(data, value);
-}
-
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
- int constant,
- bool decrement) {
- // Counter address
- Address data(mdp_in, constant);
-
- increment_mdp_data_at(data, decrement);
-}
-
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Address data,
- bool decrement) {
-
- assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" );
- assert(ProfileInterpreter, "must be profiling interpreter");
-
- // %%% 64bit treats this as 64 bit which seems unlikely
- if (decrement) {
- // Decrement the register. Set condition codes.
- addl(data, -DataLayout::counter_increment);
- // If the decrement causes the counter to overflow, stay negative
- Label L;
- jcc(Assembler::negative, L);
- addl(data, DataLayout::counter_increment);
- bind(L);
- } else {
- assert(DataLayout::counter_increment == 1,
- "flow-free idiom only works with 1");
- // Increment the register. Set carry flag.
- addl(data, DataLayout::counter_increment);
- // If the increment causes the counter to overflow, pull back by 1.
- sbbl(data, 0);
- }
-}
-
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
- Register reg,
- int constant,
- bool decrement) {
- Address data(mdp_in, reg, Address::times_1, constant);
-
- increment_mdp_data_at(data, decrement);
-}
-
-
-void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- int header_offset = in_bytes(DataLayout::header_offset());
- int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant);
- // Set the flag
- orl(Address(mdp_in, header_offset), header_bits);
-}
-
-
-
-void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in,
- int offset,
- Register value,
- Register test_value_out,
- Label& not_equal_continue) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- if (test_value_out == noreg) {
- cmpptr(value, Address(mdp_in, offset));
- } else {
- // Put the test value into a register, so caller can use it:
- movptr(test_value_out, Address(mdp_in, offset));
- cmpptr(test_value_out, value);
- }
- jcc(Assembler::notEqual, not_equal_continue);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address disp_address(mdp_in, offset_of_disp);
- addptr(mdp_in,disp_address);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp);
- addptr(mdp_in, disp_address);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- addptr(mdp_in, constant);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- push(return_bci); // save/restore across call_VM
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci);
- pop(return_bci);
-}
-
-
-void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- // Otherwise, assign to mdp
- test_method_data_pointer(mdp, profile_continue);
-
- // We are taking a branch. Increment the taken count.
- // We inline increment_mdp_data_at to return bumped_count in a register
- //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset()));
- Address data(mdp, in_bytes(JumpData::taken_offset()));
-
- // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit
- movl(bumped_count,data);
- assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" );
- addl(bumped_count, DataLayout::counter_increment);
- sbbl(bumped_count, 0);
- movl(data,bumped_count); // Store back out
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset()));
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are taking a branch. Increment the not taken count.
- increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset()));
-
- // The method data pointer needs to be updated to correspond to the next bytecode
- update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size()));
- bind (profile_continue);
- }
-}
-
-void InterpreterMacroAssembler::profile_call(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are making a call. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size()));
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_final_call(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are making a call. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size()));
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp,
- Register reg2,
- bool receiver_can_be_null) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- Label skip_receiver_profile;
- if (receiver_can_be_null) {
- Label not_null;
- testptr(receiver, receiver);
- jccb(Assembler::notZero, not_null);
- // We are making a call. Increment the count for null receiver.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- jmp(skip_receiver_profile);
- bind(not_null);
- }
-
- // Record the receiver type.
- record_klass_in_profile(receiver, mdp, reg2, true);
- bind(skip_receiver_profile);
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp,
- in_bytes(VirtualCallData::
- virtual_call_data_size()));
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::record_klass_in_profile_helper(
- Register receiver, Register mdp,
- Register reg2, int start_row,
- Label& done, bool is_virtual_call) {
- if (TypeProfileWidth == 0) {
- if (is_virtual_call) {
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- }
- return;
- }
-
- int last_row = VirtualCallData::row_limit() - 1;
- assert(start_row <= last_row, "must be work left to do");
- // Test this row for both the receiver and for null.
- // Take any of three different outcomes:
- // 1. found receiver => increment count and goto done
- // 2. found null => keep looking for case 1, maybe allocate this cell
- // 3. found something else => keep looking for cases 1 and 2
- // Case 3 is handled by a recursive call.
- for (int row = start_row; row <= last_row; row++) {
- Label next_test;
- bool test_for_null_also = (row == start_row);
-
- // See if the receiver is receiver[n].
- int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row));
- test_mdp_data_at(mdp, recvr_offset, receiver,
- (test_for_null_also ? reg2 : noreg),
- next_test);
- // (Reg2 now contains the receiver from the CallData.)
-
- // The receiver is receiver[n]. Increment count[n].
- int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row));
- increment_mdp_data_at(mdp, count_offset);
- jmp(done);
- bind(next_test);
-
- if (row == start_row) {
- Label found_null;
- // Failed the equality check on receiver[n]... Test for null.
- testptr(reg2, reg2);
- if (start_row == last_row) {
- // The only thing left to do is handle the null case.
- if (is_virtual_call) {
- jccb(Assembler::zero, found_null);
- // Receiver did not match any saved receiver and there is no empty row for it.
- // Increment total counter to indicate polymorphic case.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- jmp(done);
- bind(found_null);
- } else {
- jcc(Assembler::notZero, done);
- }
- break;
- }
- // Since null is rare, make it be the branch-taken case.
- jcc(Assembler::zero, found_null);
-
- // Put all the "Case 3" tests here.
- record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call);
-
- // Found a null. Keep searching for a matching receiver,
- // but remember that this is an empty (unused) slot.
- bind(found_null);
- }
- }
-
- // In the fall-through case, we found no matching receiver, but we
- // observed the receiver[start_row] is NULL.
-
- // Fill in the receiver field and increment the count.
- int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row));
- set_mdp_data_at(mdp, recvr_offset, receiver);
- int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row));
- movptr(reg2, (intptr_t)DataLayout::counter_increment);
- set_mdp_data_at(mdp, count_offset, reg2);
- if (start_row > 0) {
- jmp(done);
- }
-}
-
-void InterpreterMacroAssembler::record_klass_in_profile(Register receiver,
- Register mdp, Register reg2,
- bool is_virtual_call) {
- assert(ProfileInterpreter, "must be profiling");
- Label done;
-
- record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call);
-
- bind (done);
-}
-
-void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
- uint row;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Update the total ret count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- for (row = 0; row < RetData::row_limit(); row++) {
- Label next_test;
-
- // See if return_bci is equal to bci[n]:
- test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci,
- noreg, next_test);
-
- // return_bci is equal to bci[n]. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row)));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row)));
- jmp(profile_continue);
- bind(next_test);
- }
-
- update_mdp_for_ret(return_bci);
-
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_null_seen(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- set_mdp_flag_at(mdp, BitData::null_seen_byte_constant());
-
- // The method data pointer needs to be updated.
- int mdp_delta = in_bytes(BitData::bit_data_size());
- if (TypeProfileCasts) {
- mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
- }
- update_mdp_by_constant(mdp, mdp_delta);
-
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) {
- if (ProfileInterpreter && TypeProfileCasts) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- int count_offset = in_bytes(CounterData::count_offset());
- // Back up the address, since we have already bumped the mdp.
- count_offset -= in_bytes(VirtualCallData::virtual_call_data_size());
-
- // *Decrement* the counter. We expect to see zero or small negatives.
- increment_mdp_data_at(mdp, count_offset, true);
-
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2)
-{
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // The method data pointer needs to be updated.
- int mdp_delta = in_bytes(BitData::bit_data_size());
- if (TypeProfileCasts) {
- mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
-
- // Record the object type.
- record_klass_in_profile(klass, mdp, reg2, false);
- assert(reg2 == rdi, "we know how to fix this blown reg");
- restore_locals(); // Restore EDI
- }
- update_mdp_by_constant(mdp, mdp_delta);
-
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_switch_default(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Update the default case count
- increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset()));
-
- // The method data pointer needs to be updated.
- update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset()));
-
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes()
- movptr(reg2, (intptr_t)in_bytes(MultiBranchData::per_case_size()));
- // index is positive and so should have correct value if this code were
- // used on 64bits
- imulptr(index, reg2);
- addptr(index, in_bytes(MultiBranchData::case_array_offset()));
-
- // Update the case count
- increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset()));
-
- // The method data pointer needs to be updated.
- update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset()));
-
- bind (profile_continue);
- }
-}
-
-#endif // !CC_INTERP
-
-
-
-void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) {
- if (state == atos) MacroAssembler::verify_oop(reg);
-}
-
-
-#ifndef CC_INTERP
-void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) {
- if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth);
-}
-
-// Jump if ((*counter_addr += increment) & mask) satisfies the condition.
-void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr,
- int increment, Address mask,
- Register scratch, bool preloaded,
- Condition cond, Label* where) {
- if (!preloaded) {
- movl(scratch, counter_addr);
- }
- incrementl(scratch, increment);
- movl(counter_addr, scratch);
- andl(scratch, mask);
- jcc(cond, *where);
-}
-#endif /* CC_INTERP */
-
-
-void InterpreterMacroAssembler::notify_method_entry() {
- // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
- // track stack depth. If it is possible to enter interp_only_mode we add
- // the code to check if the event should be sent.
- if (JvmtiExport::can_post_interpreter_events()) {
- Label L;
- get_thread(rcx);
- movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset()));
- testl(rcx,rcx);
- jcc(Assembler::zero, L);
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry));
- bind(L);
- }
-
- {
- SkipIfEqual skip_if(this, &DTraceMethodProbes, 0);
- get_thread(rcx);
- get_method(rbx);
- call_VM_leaf(
- CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx);
- }
-
- // RedefineClasses() tracing support for obsolete method entry
- if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) {
- get_thread(rcx);
- get_method(rbx);
- call_VM_leaf(
- CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
- rcx, rbx);
- }
-}
-
-
-void InterpreterMacroAssembler::notify_method_exit(
- TosState state, NotifyMethodExitMode mode) {
- // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
- // track stack depth. If it is possible to enter interp_only_mode we add
- // the code to check if the event should be sent.
- if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
- Label L;
- // Note: frame::interpreter_frame_result has a dependency on how the
- // method result is saved across the call to post_method_exit. If this
- // is changed then the interpreter_frame_result implementation will
- // need to be updated too.
-
- // For c++ interpreter the result is always stored at a known location in the frame
- // template interpreter will leave it on the top of the stack.
- NOT_CC_INTERP(push(state);)
- get_thread(rcx);
- movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset()));
- testl(rcx,rcx);
- jcc(Assembler::zero, L);
- call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit));
- bind(L);
- NOT_CC_INTERP(pop(state);)
- }
-
- {
- SkipIfEqual skip_if(this, &DTraceMethodProbes, 0);
- NOT_CC_INTERP(push(state));
- get_thread(rbx);
- get_method(rcx);
- call_VM_leaf(
- CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit),
- rbx, rcx);
- NOT_CC_INTERP(pop(state));
- }
-}
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_32.hpp Tue Mar 17 14:03:05 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,223 +0,0 @@
-/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef CC_INTERP
- protected:
- // Interpreter specific version of call_VM_base
- virtual void call_VM_leaf_base(
- address entry_point,
- int number_of_arguments
- );
-
- virtual void call_VM_base(
- Register oop_result,
- Register java_thread,
- Register last_java_sp,
- address entry_point,
- int number_of_arguments,
- bool check_exceptions
- );
-
- virtual void check_and_handle_popframe(Register java_thread);
- virtual void check_and_handle_earlyret(Register java_thread);
-
- // base routine for all dispatches
- void dispatch_base(TosState state, address* table, bool verifyoop = true);
-#endif /* CC_INTERP */
-
- public:
- InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(rdi), _bcp_register(rsi) {}
-
- void load_earlyret_value(TosState state);
-
- // Interpreter-specific registers
-#ifdef CC_INTERP
- void save_bcp() { /* not needed in c++ interpreter and harmless */ }
- void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
-
- // Helpers for runtime call arguments/results
- void get_method(Register reg);
-
-#else
-
- void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcp_offset * wordSize), rsi); }
- void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcp_offset * wordSize)); }
- void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); }
-
- // Helpers for runtime call arguments/results
- void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); }
- void get_const(Register reg) { get_method(reg); movptr(reg, Address(reg, Method::const_offset())); }
- void get_constant_pool(Register reg) { get_const(reg); movptr(reg, Address(reg, ConstMethod::constants_offset())); }
- void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes())); }
- void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
- }
- void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
- void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
-
- // load cpool->resolved_references(index);
- void load_resolved_reference_at_index(Register result, Register index);
-
- // Expression stack
- void f2ieee(); // truncate ftos to 32bits
- void d2ieee(); // truncate dtos to 64bits
-
- void pop_ptr(Register r = rax);
- void pop_i(Register r = rax);
- void pop_l(Register lo = rax, Register hi = rdx);
- void pop_f();
- void pop_d();
-
- void push_ptr(Register r = rax);
- void push_i(Register r = rax);
- void push_l(Register lo = rax, Register hi = rdx);
- void push_d(Register r = rax);
- void push_f();
-
- void pop(TosState state); // transition vtos -> state
- void push(TosState state); // transition state -> vtos
-
- void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
-
- void push(Register r ) { ((MacroAssembler*)this)->push(r); }
- void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
-
- // These are dummies to prevent surprise implicit conversions to Register
- void pop(void* v ); // Add unimplemented ambiguous method
- void push(void* v ); // Add unimplemented ambiguous method
-
- void empty_expression_stack() {
- movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
- // NULL last_sp until next java call
- movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
- }
-
- // Helpers for swap and dup
- void load_ptr(int n, Register val);
- void store_ptr(int n, Register val);
-
- // Generate a subtype check: branch to ok_is_subtype if sub_klass is
- // a subtype of super_klass. EAX holds the super_klass. Blows ECX
- // and EDI. Register sub_klass cannot be any of the above.
- void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
-
- // Dispatching
- void dispatch_prolog(TosState state, int step = 0);
- void dispatch_epilog(TosState state, int step = 0);
- void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already)
- void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already)
- void dispatch_only_noverify(TosState state);
- void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx,
- void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table
-
-
- // jump to an invoked target
- void prepare_to_jump_from_interpreted();
- void jump_from_interpreted(Register method, Register temp);
-
- // Returning from interpreted functions
- //
- // Removes the current activation (incl. unlocking of monitors)
- // and sets up the return address. This code is also used for
- // exception unwindwing. In that case, we do not want to throw
- // IllegalMonitorStateExceptions, since that might get us into an
- // infinite rethrow exception loop.
- // Additionally this code is used for popFrame and earlyReturn.
- // In popFrame case we want to skip throwing an exception,
- // installing an exception, and notifying jvmdi.
- // In earlyReturn case we only want to skip throwing an exception
- // and installing an exception.
- void remove_activation(TosState state, Register ret_addr,
- bool throw_monitor_exception = true,
- bool install_monitor_exception = true,
- bool notify_jvmdi = true);
-#endif /* !CC_INTERP */
- void get_method_counters(Register method, Register mcs, Label& skip);
-
- // Debugging
- void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos
-#ifndef CC_INTERP
- void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos)
-
-#endif /* !CC_INTERP */
-
- // Object locking
- void lock_object (Register lock_reg);
- void unlock_object(Register lock_reg);
-
-#ifndef CC_INTERP
-
- // Interpreter profiling operations
- void set_method_data_pointer_for_bcp();
- void test_method_data_pointer(Register mdp, Label& zero_continue);
- void verify_method_data_pointer();
-
- void set_mdp_data_at(Register mdp_in, int constant, Register value);
- void increment_mdp_data_at(Address data, bool decrement = false);
- void increment_mdp_data_at(Register mdp_in, int constant,
- bool decrement = false);
- void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
- bool decrement = false);
- void increment_mask_and_jump(Address counter_addr,
- int increment, Address mask,
- Register scratch, bool preloaded,
- Condition cond, Label* where);
- void set_mdp_flag_at(Register mdp_in, int flag_constant);
- void test_mdp_data_at(Register mdp_in, int offset, Register value,
- Register test_value_out,
- Label& not_equal_continue);
-
- void record_klass_in_profile(Register receiver, Register mdp,
- Register reg2, bool is_virtual_call);
- void record_klass_in_profile_helper(Register receiver, Register mdp,
- Register reg2, int start_row,
- Label& done, bool is_virtual_call);
-
- void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
- void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
- void update_mdp_by_constant(Register mdp_in, int constant);
- void update_mdp_for_ret(Register return_bci);
-
- void profile_taken_branch(Register mdp, Register bumped_count);
- void profile_not_taken_branch(Register mdp);
- void profile_call(Register mdp);
- void profile_final_call(Register mdp);
- void profile_virtual_call(Register receiver, Register mdp, Register scratch2,
- bool receiver_can_be_null = false);
- void profile_ret(Register return_bci, Register mdp);
- void profile_null_seen(Register mdp);
- void profile_typecheck(Register mdp, Register klass, Register scratch);
- void profile_typecheck_failed(Register mdp);
- void profile_switch_default(Register mdp);
- void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2);
-
-#endif /* !CC_INTERP */
-
- typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
-
- // support for jvmti
- void notify_method_entry();
- void notify_method_exit(TosState state, NotifyMethodExitMode mode);
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp Tue Mar 17 14:03:05 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1507 +0,0 @@
-/*
- * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "interp_masm_x86.hpp"
-#include "interpreter/interpreter.hpp"
-#include "interpreter/interpreterRuntime.hpp"
-#include "oops/arrayOop.hpp"
-#include "oops/markOop.hpp"
-#include "oops/methodData.hpp"
-#include "oops/method.hpp"
-#include "prims/jvmtiExport.hpp"
-#include "prims/jvmtiRedefineClassesTrace.hpp"
-#include "prims/jvmtiThreadState.hpp"
-#include "runtime/basicLock.hpp"
-#include "runtime/biasedLocking.hpp"
-#include "runtime/sharedRuntime.hpp"
-#include "runtime/thread.inline.hpp"
-
-
-// Implementation of InterpreterMacroAssembler
-
-#ifdef CC_INTERP
-void InterpreterMacroAssembler::get_method(Register reg) {
- movptr(reg, Address(rbp, -((int)sizeof(BytecodeInterpreter) + 2 * wordSize)));
- movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method)));
-}
-#endif // CC_INTERP
-
-#ifndef CC_INTERP
-
-void InterpreterMacroAssembler::call_VM_leaf_base(address entry_point,
- int number_of_arguments) {
- // interpreter specific
- //
- // Note: No need to save/restore bcp & locals (r13 & r14) pointer
- // since these are callee saved registers and no blocking/
- // GC can happen in leaf calls.
- // Further Note: DO NOT save/restore bcp/locals. If a caller has
- // already saved them so that it can use esi/edi as temporaries
- // then a save/restore here will DESTROY the copy the caller
- // saved! There used to be a save_bcp() that only happened in
- // the ASSERT path (no restore_bcp). Which caused bizarre failures
- // when jvm built with ASSERTs.
-#ifdef ASSERT
- {
- Label L;
- cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
- jcc(Assembler::equal, L);
- stop("InterpreterMacroAssembler::call_VM_leaf_base:"
- " last_sp != NULL");
- bind(L);
- }
-#endif
- // super call
- MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments);
- // interpreter specific
- // Used to ASSERT that r13/r14 were equal to frame's bcp/locals
- // but since they may not have been saved (and we don't want to
- // save thme here (see note above) the assert is invalid.
-}
-
-void InterpreterMacroAssembler::call_VM_base(Register oop_result,
- Register java_thread,
- Register last_java_sp,
- address entry_point,
- int number_of_arguments,
- bool check_exceptions) {
- // interpreter specific
- //
- // Note: Could avoid restoring locals ptr (callee saved) - however doesn't
- // really make a difference for these runtime calls, since they are
- // slow anyway. Btw., bcp must be saved/restored since it may change
- // due to GC.
- // assert(java_thread == noreg , "not expecting a precomputed java thread");
- save_bcp();
-#ifdef ASSERT
- {
- Label L;
- cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
- jcc(Assembler::equal, L);
- stop("InterpreterMacroAssembler::call_VM_leaf_base:"
- " last_sp != NULL");
- bind(L);
- }
-#endif /* ASSERT */
- // super call
- MacroAssembler::call_VM_base(oop_result, noreg, last_java_sp,
- entry_point, number_of_arguments,
- check_exceptions);
- // interpreter specific
- restore_bcp();
- restore_locals();
-}
-
-
-void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) {
- if (JvmtiExport::can_pop_frame()) {
- Label L;
- // Initiate popframe handling only if it is not already being
- // processed. If the flag has the popframe_processing bit set, it
- // means that this code is called *during* popframe handling - we
- // don't want to reenter.
- // This method is only called just after the call into the vm in
- // call_VM_base, so the arg registers are available.
- movl(c_rarg0, Address(r15_thread, JavaThread::popframe_condition_offset()));
- testl(c_rarg0, JavaThread::popframe_pending_bit);
- jcc(Assembler::zero, L);
- testl(c_rarg0, JavaThread::popframe_processing_bit);
- jcc(Assembler::notZero, L);
- // Call Interpreter::remove_activation_preserving_args_entry() to get the
- // address of the same-named entrypoint in the generated interpreter code.
- call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry));
- jmp(rax);
- bind(L);
- }
-}
-
-
-void InterpreterMacroAssembler::load_earlyret_value(TosState state) {
- movptr(rcx, Address(r15_thread, JavaThread::jvmti_thread_state_offset()));
- const Address tos_addr(rcx, JvmtiThreadState::earlyret_tos_offset());
- const Address oop_addr(rcx, JvmtiThreadState::earlyret_oop_offset());
- const Address val_addr(rcx, JvmtiThreadState::earlyret_value_offset());
- switch (state) {
- case atos: movptr(rax, oop_addr);
- movptr(oop_addr, (int32_t)NULL_WORD);
- verify_oop(rax, state); break;
- case ltos: movptr(rax, val_addr); break;
- case btos: // fall through
- case ctos: // fall through
- case stos: // fall through
- case itos: movl(rax, val_addr); break;
- case ftos: movflt(xmm0, val_addr); break;
- case dtos: movdbl(xmm0, val_addr); break;
- case vtos: /* nothing to do */ break;
- default : ShouldNotReachHere();
- }
- // Clean up tos value in the thread object
- movl(tos_addr, (int) ilgl);
- movl(val_addr, (int32_t) NULL_WORD);
-}
-
-
-void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) {
- if (JvmtiExport::can_force_early_return()) {
- Label L;
- movptr(c_rarg0, Address(r15_thread, JavaThread::jvmti_thread_state_offset()));
- testptr(c_rarg0, c_rarg0);
- jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit;
-
- // Initiate earlyret handling only if it is not already being processed.
- // If the flag has the earlyret_processing bit set, it means that this code
- // is called *during* earlyret handling - we don't want to reenter.
- movl(c_rarg0, Address(c_rarg0, JvmtiThreadState::earlyret_state_offset()));
- cmpl(c_rarg0, JvmtiThreadState::earlyret_pending);
- jcc(Assembler::notEqual, L);
-
- // Call Interpreter::remove_activation_early_entry() to get the address of the
- // same-named entrypoint in the generated interpreter code.
- movptr(c_rarg0, Address(r15_thread, JavaThread::jvmti_thread_state_offset()));
- movl(c_rarg0, Address(c_rarg0, JvmtiThreadState::earlyret_tos_offset()));
- call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), c_rarg0);
- jmp(rax);
- bind(L);
- }
-}
-
-
-void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(
- Register reg,
- int bcp_offset) {
- assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode");
- load_unsigned_short(reg, Address(r13, bcp_offset));
- bswapl(reg);
- shrl(reg, 16);
-}
-
-
-void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index,
- int bcp_offset,
- size_t index_size) {
- assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
- if (index_size == sizeof(u2)) {
- load_unsigned_short(index, Address(r13, bcp_offset));
- } else if (index_size == sizeof(u4)) {
- movl(index, Address(r13, bcp_offset));
- // Check if the secondary index definition is still ~x, otherwise
- // we have to change the following assembler code to calculate the
- // plain index.
- assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line");
- notl(index); // convert to plain index
- } else if (index_size == sizeof(u1)) {
- load_unsigned_byte(index, Address(r13, bcp_offset));
- } else {
- ShouldNotReachHere();
- }
-}
-
-
-void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
- Register index,
- int bcp_offset,
- size_t index_size) {
- assert_different_registers(cache, index);
- get_cache_index_at_bcp(index, bcp_offset, index_size);
- movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
- assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
- // convert from field index to ConstantPoolCacheEntry index
- assert(exact_log2(in_words(ConstantPoolCacheEntry::size())) == 2, "else change next line");
- shll(index, 2);
-}
-
-
-void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache,
- Register index,
- Register bytecode,
- int byte_no,
- int bcp_offset,
- size_t index_size) {
- get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size);
- // We use a 32-bit load here since the layout of 64-bit words on
- // little-endian machines allow us that.
- movl(bytecode, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
- const int shift_count = (1 + byte_no) * BitsPerByte;
- assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) ||
- (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift),
- "correct shift count");
- shrl(bytecode, shift_count);
- assert(ConstantPoolCacheEntry::bytecode_1_mask == ConstantPoolCacheEntry::bytecode_2_mask, "common mask");
- andl(bytecode, ConstantPoolCacheEntry::bytecode_1_mask);
-}
-
-
-void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache,
- Register tmp,
- int bcp_offset,
- size_t index_size) {
- assert(cache != tmp, "must use different register");
- get_cache_index_at_bcp(tmp, bcp_offset, index_size);
- assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
- // convert from field index to ConstantPoolCacheEntry index
- // and from word offset to byte offset
- assert(exact_log2(in_bytes(ConstantPoolCacheEntry::size_in_bytes())) == 2 + LogBytesPerWord, "else change next line");
- shll(tmp, 2 + LogBytesPerWord);
- movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
- // skip past the header
- addptr(cache, in_bytes(ConstantPoolCache::base_offset()));
- addptr(cache, tmp); // construct pointer to cache entry
-}
-
-// Load object from cpool->resolved_references(index)
-void InterpreterMacroAssembler::load_resolved_reference_at_index(
- Register result, Register index) {
- assert_different_registers(result, index);
- // convert from field index to resolved_references() index and from
- // word index to byte offset. Since this is a java object, it can be compressed
- Register tmp = index; // reuse
- shll(tmp, LogBytesPerHeapOop);
-
- get_constant_pool(result);
- // load pointer for resolved_references[] objArray
- movptr(result, Address(result, ConstantPool::resolved_references_offset_in_bytes()));
- // JNIHandles::resolve(obj);
- movptr(result, Address(result, 0));
- // Add in the index
- addptr(result, tmp);
- load_heap_oop(result, Address(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT)));
-}
-
-// Generate a subtype check: branch to ok_is_subtype if sub_klass is a
-// subtype of super_klass.
-//
-// Args:
-// rax: superklass
-// Rsub_klass: subklass
-//
-// Kills:
-// rcx, rdi
-void InterpreterMacroAssembler::gen_subtype_check(Register Rsub_klass,
- Label& ok_is_subtype) {
- assert(Rsub_klass != rax, "rax holds superklass");
- assert(Rsub_klass != r14, "r14 holds locals");
- assert(Rsub_klass != r13, "r13 holds bcp");
- assert(Rsub_klass != rcx, "rcx holds 2ndary super array length");
- assert(Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr");
-
- // Profile the not-null value's klass.
- profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
-
- // Do the check.
- check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx
-
- // Profile the failure of the check.
- profile_typecheck_failed(rcx); // blows rcx
-}
-
-
-
-// Java Expression Stack
-
-void InterpreterMacroAssembler::pop_ptr(Register r) {
- pop(r);
-}
-
-void InterpreterMacroAssembler::pop_i(Register r) {
- // XXX can't use pop currently, upper half non clean
- movl(r, Address(rsp, 0));
- addptr(rsp, wordSize);
-}
-
-void InterpreterMacroAssembler::pop_l(Register r) {
- movq(r, Address(rsp, 0));
- addptr(rsp, 2 * Interpreter::stackElementSize);
-}
-
-void InterpreterMacroAssembler::pop_f(XMMRegister r) {
- movflt(r, Address(rsp, 0));
- addptr(rsp, wordSize);
-}
-
-void InterpreterMacroAssembler::pop_d(XMMRegister r) {
- movdbl(r, Address(rsp, 0));
- addptr(rsp, 2 * Interpreter::stackElementSize);
-}
-
-void InterpreterMacroAssembler::push_ptr(Register r) {
- push(r);
-}
-
-void InterpreterMacroAssembler::push_i(Register r) {
- push(r);
-}
-
-void InterpreterMacroAssembler::push_l(Register r) {
- subptr(rsp, 2 * wordSize);
- movq(Address(rsp, 0), r);
-}
-
-void InterpreterMacroAssembler::push_f(XMMRegister r) {
- subptr(rsp, wordSize);
- movflt(Address(rsp, 0), r);
-}
-
-void InterpreterMacroAssembler::push_d(XMMRegister r) {
- subptr(rsp, 2 * wordSize);
- movdbl(Address(rsp, 0), r);
-}
-
-void InterpreterMacroAssembler::pop(TosState state) {
- switch (state) {
- case atos: pop_ptr(); break;
- case btos:
- case ctos:
- case stos:
- case itos: pop_i(); break;
- case ltos: pop_l(); break;
- case ftos: pop_f(); break;
- case dtos: pop_d(); break;
- case vtos: /* nothing to do */ break;
- default: ShouldNotReachHere();
- }
- verify_oop(rax, state);
-}
-
-void InterpreterMacroAssembler::push(TosState state) {
- verify_oop(rax, state);
- switch (state) {
- case atos: push_ptr(); break;
- case btos:
- case ctos:
- case stos:
- case itos: push_i(); break;
- case ltos: push_l(); break;
- case ftos: push_f(); break;
- case dtos: push_d(); break;
- case vtos: /* nothing to do */ break;
- default : ShouldNotReachHere();
- }
-}
-
-
-// Helpers for swap and dup
-void InterpreterMacroAssembler::load_ptr(int n, Register val) {
- movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n)));
-}
-
-void InterpreterMacroAssembler::store_ptr(int n, Register val) {
- movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val);
-}
-
-
-void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() {
- // set sender sp
- lea(r13, Address(rsp, wordSize));
- // record last_sp
- movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), r13);
-}
-
-
-// Jump to from_interpreted entry of a call unless single stepping is possible
-// in this thread in which case we must call the i2i entry
-void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) {
- prepare_to_jump_from_interpreted();
-
- if (JvmtiExport::can_post_interpreter_events()) {
- Label run_compiled_code;
- // JVMTI events, such as single-stepping, are implemented partly by avoiding running
- // compiled code in threads for which the event is enabled. Check here for
- // interp_only_mode if these events CAN be enabled.
- // interp_only is an int, on little endian it is sufficient to test the byte only
- // Is a cmpl faster?
- cmpb(Address(r15_thread, JavaThread::interp_only_mode_offset()), 0);
- jccb(Assembler::zero, run_compiled_code);
- jmp(Address(method, Method::interpreter_entry_offset()));
- bind(run_compiled_code);
- }
-
- jmp(Address(method, Method::from_interpreted_offset()));
-
-}
-
-
-// The following two routines provide a hook so that an implementation
-// can schedule the dispatch in two parts. amd64 does not do this.
-void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) {
- // Nothing amd64 specific to be done here
-}
-
-void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) {
- dispatch_next(state, step);
-}
-
-void InterpreterMacroAssembler::dispatch_base(TosState state,
- address* table,
- bool verifyoop) {
- verify_FPU(1, state);
- if (VerifyActivationFrameSize) {
- Label L;
- mov(rcx, rbp);
- subptr(rcx, rsp);
- int32_t min_frame_size =
- (frame::link_offset - frame::interpreter_frame_initial_sp_offset) *
- wordSize;
- cmpptr(rcx, (int32_t)min_frame_size);
- jcc(Assembler::greaterEqual, L);
- stop("broken stack frame");
- bind(L);
- }
- if (verifyoop) {
- verify_oop(rax, state);
- }
- lea(rscratch1, ExternalAddress((address)table));
- jmp(Address(rscratch1, rbx, Address::times_8));
-}
-
-void InterpreterMacroAssembler::dispatch_only(TosState state) {
- dispatch_base(state, Interpreter::dispatch_table(state));
-}
-
-void InterpreterMacroAssembler::dispatch_only_normal(TosState state) {
- dispatch_base(state, Interpreter::normal_table(state));
-}
-
-void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) {
- dispatch_base(state, Interpreter::normal_table(state), false);
-}
-
-
-void InterpreterMacroAssembler::dispatch_next(TosState state, int step) {
- // load next bytecode (load before advancing r13 to prevent AGI)
- load_unsigned_byte(rbx, Address(r13, step));
- // advance r13
- increment(r13, step);
- dispatch_base(state, Interpreter::dispatch_table(state));
-}
-
-void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) {
- // load current bytecode
- load_unsigned_byte(rbx, Address(r13, 0));
- dispatch_base(state, table);
-}
-
-// remove activation
-//
-// Unlock the receiver if this is a synchronized method.
-// Unlock any Java monitors from syncronized blocks.
-// Remove the activation from the stack.
-//
-// If there are locked Java monitors
-// If throw_monitor_exception
-// throws IllegalMonitorStateException
-// Else if install_monitor_exception
-// installs IllegalMonitorStateException
-// Else
-// no error processing
-void InterpreterMacroAssembler::remove_activation(
- TosState state,
- Register ret_addr,
- bool throw_monitor_exception,
- bool install_monitor_exception,
- bool notify_jvmdi) {
- // Note: Registers rdx xmm0 may be in use for the
- // result check if synchronized method
- Label unlocked, unlock, no_unlock;
-
- // get the value of _do_not_unlock_if_synchronized into rdx
- const Address do_not_unlock_if_synchronized(r15_thread,
- in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
- movbool(rdx, do_not_unlock_if_synchronized);
- movbool(do_not_unlock_if_synchronized, false); // reset the flag
-
- // get method access flags
- movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
- movl(rcx, Address(rbx, Method::access_flags_offset()));
- testl(rcx, JVM_ACC_SYNCHRONIZED);
- jcc(Assembler::zero, unlocked);
-
- // Don't unlock anything if the _do_not_unlock_if_synchronized flag
- // is set.
- testbool(rdx);
- jcc(Assembler::notZero, no_unlock);
-
- // unlock monitor
- push(state); // save result
-
- // BasicObjectLock will be first in list, since this is a
- // synchronized method. However, need to check that the object has
- // not been unlocked by an explicit monitorexit bytecode.
- const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset *
- wordSize - (int) sizeof(BasicObjectLock));
- // We use c_rarg1 so that if we go slow path it will be the correct
- // register for unlock_object to pass to VM directly
- lea(c_rarg1, monitor); // address of first monitor
-
- movptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()));
- testptr(rax, rax);
- jcc(Assembler::notZero, unlock);
-
- pop(state);
- if (throw_monitor_exception) {
- // Entry already unlocked, need to throw exception
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::throw_illegal_monitor_state_exception));
- should_not_reach_here();
- } else {
- // Monitor already unlocked during a stack unroll. If requested,
- // install an illegal_monitor_state_exception. Continue with
- // stack unrolling.
- if (install_monitor_exception) {
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::new_illegal_monitor_state_exception));
- }
- jmp(unlocked);
- }
-
- bind(unlock);
- unlock_object(c_rarg1);
- pop(state);
-
- // Check that for block-structured locking (i.e., that all locked
- // objects has been unlocked)
- bind(unlocked);
-
- // rax: Might contain return value
-
- // Check that all monitors are unlocked
- {
- Label loop, exception, entry, restart;
- const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
- const Address monitor_block_top(
- rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
- const Address monitor_block_bot(
- rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
-
- bind(restart);
- // We use c_rarg1 so that if we go slow path it will be the correct
- // register for unlock_object to pass to VM directly
- movptr(c_rarg1, monitor_block_top); // points to current entry, starting
- // with top-most entry
- lea(rbx, monitor_block_bot); // points to word before bottom of
- // monitor block
- jmp(entry);
-
- // Entry already locked, need to throw exception
- bind(exception);
-
- if (throw_monitor_exception) {
- // Throw exception
- MacroAssembler::call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::
- throw_illegal_monitor_state_exception));
- should_not_reach_here();
- } else {
- // Stack unrolling. Unlock object and install illegal_monitor_exception.
- // Unlock does not block, so don't have to worry about the frame.
- // We don't have to preserve c_rarg1 since we are going to throw an exception.
-
- push(state);
- unlock_object(c_rarg1);
- pop(state);
-
- if (install_monitor_exception) {
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::
- new_illegal_monitor_state_exception));
- }
-
- jmp(restart);
- }
-
- bind(loop);
- // check if current entry is used
- cmpptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL);
- jcc(Assembler::notEqual, exception);
-
- addptr(c_rarg1, entry_size); // otherwise advance to next entry
- bind(entry);
- cmpptr(c_rarg1, rbx); // check if bottom reached
- jcc(Assembler::notEqual, loop); // if not at bottom then check this entry
- }
-
- bind(no_unlock);
-
- // jvmti support
- if (notify_jvmdi) {
- notify_method_exit(state, NotifyJVMTI); // preserve TOSCA
- } else {
- notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA
- }
-
- // remove activation
- // get sender sp
- movptr(rbx,
- Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize));
- leave(); // remove frame anchor
- pop(ret_addr); // get return address
- mov(rsp, rbx); // set sp to sender sp
-}
-
-#endif // C_INTERP
-
-void InterpreterMacroAssembler::get_method_counters(Register method,
- Register mcs, Label& skip) {
- Label has_counters;
- movptr(mcs, Address(method, Method::method_counters_offset()));
- testptr(mcs, mcs);
- jcc(Assembler::notZero, has_counters);
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::build_method_counters), method);
- movptr(mcs, Address(method,Method::method_counters_offset()));
- testptr(mcs, mcs);
- jcc(Assembler::zero, skip); // No MethodCounters allocated, OutOfMemory
- bind(has_counters);
-}
-
-
-// Lock object
-//
-// Args:
-// c_rarg1: BasicObjectLock to be used for locking
-//
-// Kills:
-// rax
-// c_rarg0, c_rarg1, c_rarg2, c_rarg3, .. (param regs)
-// rscratch1, rscratch2 (scratch regs)
-void InterpreterMacroAssembler::lock_object(Register lock_reg) {
- assert(lock_reg == c_rarg1, "The argument is only for looks. It must be c_rarg1");
-
- if (UseHeavyMonitors) {
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
- lock_reg);
- } else {
- Label done;
-
- const Register swap_reg = rax; // Must use rax for cmpxchg instruction
- const Register obj_reg = c_rarg3; // Will contain the oop
-
- const int obj_offset = BasicObjectLock::obj_offset_in_bytes();
- const int lock_offset = BasicObjectLock::lock_offset_in_bytes ();
- const int mark_offset = lock_offset +
- BasicLock::displaced_header_offset_in_bytes();
-
- Label slow_case;
-
- // Load object pointer into obj_reg %c_rarg3
- movptr(obj_reg, Address(lock_reg, obj_offset));
-
- if (UseBiasedLocking) {
- biased_locking_enter(lock_reg, obj_reg, swap_reg, rscratch1, false, done, &slow_case);
- }
-
- // Load immediate 1 into swap_reg %rax
- movl(swap_reg, 1);
-
- // Load (object->mark() | 1) into swap_reg %rax
- orptr(swap_reg, Address(obj_reg, 0));
-
- // Save (object->mark() | 1) into BasicLock's displaced header
- movptr(Address(lock_reg, mark_offset), swap_reg);
-
- assert(lock_offset == 0,
- "displached header must be first word in BasicObjectLock");
-
- if (os::is_MP()) lock();
- cmpxchgptr(lock_reg, Address(obj_reg, 0));
- if (PrintBiasedLockingStatistics) {
- cond_inc32(Assembler::zero,
- ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
- }
- jcc(Assembler::zero, done);
-
- // Test if the oopMark is an obvious stack pointer, i.e.,
- // 1) (mark & 7) == 0, and
- // 2) rsp <= mark < mark + os::pagesize()
- //
- // These 3 tests can be done by evaluating the following
- // expression: ((mark - rsp) & (7 - os::vm_page_size())),
- // assuming both stack pointer and pagesize have their
- // least significant 3 bits clear.
- // NOTE: the oopMark is in swap_reg %rax as the result of cmpxchg
- subptr(swap_reg, rsp);
- andptr(swap_reg, 7 - os::vm_page_size());
-
- // Save the test result, for recursive case, the result is zero
- movptr(Address(lock_reg, mark_offset), swap_reg);
-
- if (PrintBiasedLockingStatistics) {
- cond_inc32(Assembler::zero,
- ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
- }
- jcc(Assembler::zero, done);
-
- bind(slow_case);
-
- // Call the runtime routine for slow case
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
- lock_reg);
-
- bind(done);
- }
-}
-
-
-// Unlocks an object. Used in monitorexit bytecode and
-// remove_activation. Throws an IllegalMonitorException if object is
-// not locked by current thread.
-//
-// Args:
-// c_rarg1: BasicObjectLock for lock
-//
-// Kills:
-// rax
-// c_rarg0, c_rarg1, c_rarg2, c_rarg3, ... (param regs)
-// rscratch1, rscratch2 (scratch regs)
-void InterpreterMacroAssembler::unlock_object(Register lock_reg) {
- assert(lock_reg == c_rarg1, "The argument is only for looks. It must be rarg1");
-
- if (UseHeavyMonitors) {
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
- lock_reg);
- } else {
- Label done;
-
- const Register swap_reg = rax; // Must use rax for cmpxchg instruction
- const Register header_reg = c_rarg2; // Will contain the old oopMark
- const Register obj_reg = c_rarg3; // Will contain the oop
-
- save_bcp(); // Save in case of exception
-
- // Convert from BasicObjectLock structure to object and BasicLock
- // structure Store the BasicLock address into %rax
- lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes()));
-
- // Load oop into obj_reg(%c_rarg3)
- movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()));
-
- // Free entry
- movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD);
-
- if (UseBiasedLocking) {
- biased_locking_exit(obj_reg, header_reg, done);
- }
-
- // Load the old header from BasicLock structure
- movptr(header_reg, Address(swap_reg,
- BasicLock::displaced_header_offset_in_bytes()));
-
- // Test for recursion
- testptr(header_reg, header_reg);
-
- // zero for recursive case
- jcc(Assembler::zero, done);
-
- // Atomic swap back the old header
- if (os::is_MP()) lock();
- cmpxchgptr(header_reg, Address(obj_reg, 0));
-
- // zero for recursive case
- jcc(Assembler::zero, done);
-
- // Call the runtime routine for slow case.
- movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()),
- obj_reg); // restore obj
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
- lock_reg);
-
- bind(done);
-
- restore_bcp();
- }
-}
-
-#ifndef CC_INTERP
-
-void InterpreterMacroAssembler::test_method_data_pointer(Register mdp,
- Label& zero_continue) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- movptr(mdp, Address(rbp, frame::interpreter_frame_mdp_offset * wordSize));
- testptr(mdp, mdp);
- jcc(Assembler::zero, zero_continue);
-}
-
-
-// Set the method data pointer for the current bcp.
-void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Label set_mdp;
- push(rax);
- push(rbx);
-
- get_method(rbx);
- // Test MDO to avoid the call if it is NULL.
- movptr(rax, Address(rbx, in_bytes(Method::method_data_offset())));
- testptr(rax, rax);
- jcc(Assembler::zero, set_mdp);
- // rbx: method
- // r13: bcp
- call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, r13);
- // rax: mdi
- // mdo is guaranteed to be non-zero here, we checked for it before the call.
- movptr(rbx, Address(rbx, in_bytes(Method::method_data_offset())));
- addptr(rbx, in_bytes(MethodData::data_offset()));
- addptr(rax, rbx);
- bind(set_mdp);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), rax);
- pop(rbx);
- pop(rax);
-}
-
-void InterpreterMacroAssembler::verify_method_data_pointer() {
- assert(ProfileInterpreter, "must be profiling interpreter");
-#ifdef ASSERT
- Label verify_continue;
- push(rax);
- push(rbx);
- push(c_rarg3);
- push(c_rarg2);
- test_method_data_pointer(c_rarg3, verify_continue); // If mdp is zero, continue
- get_method(rbx);
-
- // If the mdp is valid, it will point to a DataLayout header which is
- // consistent with the bcp. The converse is highly probable also.
- load_unsigned_short(c_rarg2,
- Address(c_rarg3, in_bytes(DataLayout::bci_offset())));
- addptr(c_rarg2, Address(rbx, Method::const_offset()));
- lea(c_rarg2, Address(c_rarg2, ConstMethod::codes_offset()));
- cmpptr(c_rarg2, r13);
- jcc(Assembler::equal, verify_continue);
- // rbx: method
- // r13: bcp
- // c_rarg3: mdp
- call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp),
- rbx, r13, c_rarg3);
- bind(verify_continue);
- pop(c_rarg2);
- pop(c_rarg3);
- pop(rbx);
- pop(rax);
-#endif // ASSERT
-}
-
-
-void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in,
- int constant,
- Register value) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address data(mdp_in, constant);
- movptr(data, value);
-}
-
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
- int constant,
- bool decrement) {
- // Counter address
- Address data(mdp_in, constant);
-
- increment_mdp_data_at(data, decrement);
-}
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Address data,
- bool decrement) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- // %%% this does 64bit counters at best it is wasting space
- // at worst it is a rare bug when counters overflow
-
- if (decrement) {
- // Decrement the register. Set condition codes.
- addptr(data, (int32_t) -DataLayout::counter_increment);
- // If the decrement causes the counter to overflow, stay negative
- Label L;
- jcc(Assembler::negative, L);
- addptr(data, (int32_t) DataLayout::counter_increment);
- bind(L);
- } else {
- assert(DataLayout::counter_increment == 1,
- "flow-free idiom only works with 1");
- // Increment the register. Set carry flag.
- addptr(data, DataLayout::counter_increment);
- // If the increment causes the counter to overflow, pull back by 1.
- sbbptr(data, (int32_t)0);
- }
-}
-
-
-void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
- Register reg,
- int constant,
- bool decrement) {
- Address data(mdp_in, reg, Address::times_1, constant);
-
- increment_mdp_data_at(data, decrement);
-}
-
-void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in,
- int flag_byte_constant) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- int header_offset = in_bytes(DataLayout::header_offset());
- int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant);
- // Set the flag
- orl(Address(mdp_in, header_offset), header_bits);
-}
-
-
-
-void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in,
- int offset,
- Register value,
- Register test_value_out,
- Label& not_equal_continue) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- if (test_value_out == noreg) {
- cmpptr(value, Address(mdp_in, offset));
- } else {
- // Put the test value into a register, so caller can use it:
- movptr(test_value_out, Address(mdp_in, offset));
- cmpptr(test_value_out, value);
- }
- jcc(Assembler::notEqual, not_equal_continue);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in,
- int offset_of_disp) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address disp_address(mdp_in, offset_of_disp);
- addptr(mdp_in, disp_address);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in,
- Register reg,
- int offset_of_disp) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp);
- addptr(mdp_in, disp_address);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in,
- int constant) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- addptr(mdp_in, constant);
- movptr(Address(rbp, frame::interpreter_frame_mdp_offset * wordSize), mdp_in);
-}
-
-
-void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) {
- assert(ProfileInterpreter, "must be profiling interpreter");
- push(return_bci); // save/restore across call_VM
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret),
- return_bci);
- pop(return_bci);
-}
-
-
-void InterpreterMacroAssembler::profile_taken_branch(Register mdp,
- Register bumped_count) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- // Otherwise, assign to mdp
- test_method_data_pointer(mdp, profile_continue);
-
- // We are taking a branch. Increment the taken count.
- // We inline increment_mdp_data_at to return bumped_count in a register
- //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset()));
- Address data(mdp, in_bytes(JumpData::taken_offset()));
- movptr(bumped_count, data);
- assert(DataLayout::counter_increment == 1,
- "flow-free idiom only works with 1");
- addptr(bumped_count, DataLayout::counter_increment);
- sbbptr(bumped_count, 0);
- movptr(data, bumped_count); // Store back out
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset()));
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are taking a branch. Increment the not taken count.
- increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset()));
-
- // The method data pointer needs to be updated to correspond to
- // the next bytecode
- update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size()));
- bind(profile_continue);
- }
-}
-
-void InterpreterMacroAssembler::profile_call(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are making a call. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size()));
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_final_call(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // We are making a call. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp,
- in_bytes(VirtualCallData::
- virtual_call_data_size()));
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
- Register mdp,
- Register reg2,
- bool receiver_can_be_null) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- Label skip_receiver_profile;
- if (receiver_can_be_null) {
- Label not_null;
- testptr(receiver, receiver);
- jccb(Assembler::notZero, not_null);
- // We are making a call. Increment the count for null receiver.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- jmp(skip_receiver_profile);
- bind(not_null);
- }
-
- // Record the receiver type.
- record_klass_in_profile(receiver, mdp, reg2, true);
- bind(skip_receiver_profile);
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_constant(mdp,
- in_bytes(VirtualCallData::
- virtual_call_data_size()));
- bind(profile_continue);
- }
-}
-
-// This routine creates a state machine for updating the multi-row
-// type profile at a virtual call site (or other type-sensitive bytecode).
-// The machine visits each row (of receiver/count) until the receiver type
-// is found, or until it runs out of rows. At the same time, it remembers
-// the location of the first empty row. (An empty row records null for its
-// receiver, and can be allocated for a newly-observed receiver type.)
-// Because there are two degrees of freedom in the state, a simple linear
-// search will not work; it must be a decision tree. Hence this helper
-// function is recursive, to generate the required tree structured code.
-// It's the interpreter, so we are trading off code space for speed.
-// See below for example code.
-void InterpreterMacroAssembler::record_klass_in_profile_helper(
- Register receiver, Register mdp,
- Register reg2, int start_row,
- Label& done, bool is_virtual_call) {
- if (TypeProfileWidth == 0) {
- if (is_virtual_call) {
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- }
- return;
- }
-
- int last_row = VirtualCallData::row_limit() - 1;
- assert(start_row <= last_row, "must be work left to do");
- // Test this row for both the receiver and for null.
- // Take any of three different outcomes:
- // 1. found receiver => increment count and goto done
- // 2. found null => keep looking for case 1, maybe allocate this cell
- // 3. found something else => keep looking for cases 1 and 2
- // Case 3 is handled by a recursive call.
- for (int row = start_row; row <= last_row; row++) {
- Label next_test;
- bool test_for_null_also = (row == start_row);
-
- // See if the receiver is receiver[n].
- int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row));
- test_mdp_data_at(mdp, recvr_offset, receiver,
- (test_for_null_also ? reg2 : noreg),
- next_test);
- // (Reg2 now contains the receiver from the CallData.)
-
- // The receiver is receiver[n]. Increment count[n].
- int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row));
- increment_mdp_data_at(mdp, count_offset);
- jmp(done);
- bind(next_test);
-
- if (test_for_null_also) {
- Label found_null;
- // Failed the equality check on receiver[n]... Test for null.
- testptr(reg2, reg2);
- if (start_row == last_row) {
- // The only thing left to do is handle the null case.
- if (is_virtual_call) {
- jccb(Assembler::zero, found_null);
- // Receiver did not match any saved receiver and there is no empty row for it.
- // Increment total counter to indicate polymorphic case.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
- jmp(done);
- bind(found_null);
- } else {
- jcc(Assembler::notZero, done);
- }
- break;
- }
- // Since null is rare, make it be the branch-taken case.
- jcc(Assembler::zero, found_null);
-
- // Put all the "Case 3" tests here.
- record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call);
-
- // Found a null. Keep searching for a matching receiver,
- // but remember that this is an empty (unused) slot.
- bind(found_null);
- }
- }
-
- // In the fall-through case, we found no matching receiver, but we
- // observed the receiver[start_row] is NULL.
-
- // Fill in the receiver field and increment the count.
- int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row));
- set_mdp_data_at(mdp, recvr_offset, receiver);
- int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row));
- movl(reg2, DataLayout::counter_increment);
- set_mdp_data_at(mdp, count_offset, reg2);
- if (start_row > 0) {
- jmp(done);
- }
-}
-
-// Example state machine code for three profile rows:
-// // main copy of decision tree, rooted at row[1]
-// if (row[0].rec == rec) { row[0].incr(); goto done; }
-// if (row[0].rec != NULL) {
-// // inner copy of decision tree, rooted at row[1]
-// if (row[1].rec == rec) { row[1].incr(); goto done; }
-// if (row[1].rec != NULL) {
-// // degenerate decision tree, rooted at row[2]
-// if (row[2].rec == rec) { row[2].incr(); goto done; }
-// if (row[2].rec != NULL) { count.incr(); goto done; } // overflow
-// row[2].init(rec); goto done;
-// } else {
-// // remember row[1] is empty
-// if (row[2].rec == rec) { row[2].incr(); goto done; }
-// row[1].init(rec); goto done;
-// }
-// } else {
-// // remember row[0] is empty
-// if (row[1].rec == rec) { row[1].incr(); goto done; }
-// if (row[2].rec == rec) { row[2].incr(); goto done; }
-// row[0].init(rec); goto done;
-// }
-// done:
-
-void InterpreterMacroAssembler::record_klass_in_profile(Register receiver,
- Register mdp, Register reg2,
- bool is_virtual_call) {
- assert(ProfileInterpreter, "must be profiling");
- Label done;
-
- record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call);
-
- bind (done);
-}
-
-void InterpreterMacroAssembler::profile_ret(Register return_bci,
- Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
- uint row;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Update the total ret count.
- increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
-
- for (row = 0; row < RetData::row_limit(); row++) {
- Label next_test;
-
- // See if return_bci is equal to bci[n]:
- test_mdp_data_at(mdp,
- in_bytes(RetData::bci_offset(row)),
- return_bci, noreg,
- next_test);
-
- // return_bci is equal to bci[n]. Increment the count.
- increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row)));
-
- // The method data pointer needs to be updated to reflect the new target.
- update_mdp_by_offset(mdp,
- in_bytes(RetData::bci_displacement_offset(row)));
- jmp(profile_continue);
- bind(next_test);
- }
-
- update_mdp_for_ret(return_bci);
-
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_null_seen(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- set_mdp_flag_at(mdp, BitData::null_seen_byte_constant());
-
- // The method data pointer needs to be updated.
- int mdp_delta = in_bytes(BitData::bit_data_size());
- if (TypeProfileCasts) {
- mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
- }
- update_mdp_by_constant(mdp, mdp_delta);
-
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) {
- if (ProfileInterpreter && TypeProfileCasts) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- int count_offset = in_bytes(CounterData::count_offset());
- // Back up the address, since we have already bumped the mdp.
- count_offset -= in_bytes(VirtualCallData::virtual_call_data_size());
-
- // *Decrement* the counter. We expect to see zero or small negatives.
- increment_mdp_data_at(mdp, count_offset, true);
-
- bind (profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // The method data pointer needs to be updated.
- int mdp_delta = in_bytes(BitData::bit_data_size());
- if (TypeProfileCasts) {
- mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
-
- // Record the object type.
- record_klass_in_profile(klass, mdp, reg2, false);
- }
- update_mdp_by_constant(mdp, mdp_delta);
-
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_switch_default(Register mdp) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Update the default case count
- increment_mdp_data_at(mdp,
- in_bytes(MultiBranchData::default_count_offset()));
-
- // The method data pointer needs to be updated.
- update_mdp_by_offset(mdp,
- in_bytes(MultiBranchData::
- default_displacement_offset()));
-
- bind(profile_continue);
- }
-}
-
-
-void InterpreterMacroAssembler::profile_switch_case(Register index,
- Register mdp,
- Register reg2) {
- if (ProfileInterpreter) {
- Label profile_continue;
-
- // If no method data exists, go to profile_continue.
- test_method_data_pointer(mdp, profile_continue);
-
- // Build the base (index * per_case_size_in_bytes()) +
- // case_array_offset_in_bytes()
- movl(reg2, in_bytes(MultiBranchData::per_case_size()));
- imulptr(index, reg2); // XXX l ?
- addptr(index, in_bytes(MultiBranchData::case_array_offset())); // XXX l ?
-
- // Update the case count
- increment_mdp_data_at(mdp,
- index,
- in_bytes(MultiBranchData::relative_count_offset()));
-
- // The method data pointer needs to be updated.
- update_mdp_by_offset(mdp,
- index,
- in_bytes(MultiBranchData::
- relative_displacement_offset()));
-
- bind(profile_continue);
- }
-}
-
-
-
-void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) {
- if (state == atos) {
- MacroAssembler::verify_oop(reg);
- }
-}
-
-void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) {
-}
-
-// Jump if ((*counter_addr += increment) & mask) satisfies the condition.
-void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr,
- int increment, Address mask,
- Register scratch, bool preloaded,
- Condition cond, Label* where) {
- if (!preloaded) {
- movl(scratch, counter_addr);
- }
- incrementl(scratch, increment);
- movl(counter_addr, scratch);
- andl(scratch, mask);
- jcc(cond, *where);
-}
-#endif // !CC_INTERP
-
-
-void InterpreterMacroAssembler::notify_method_entry() {
- // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
- // track stack depth. If it is possible to enter interp_only_mode we add
- // the code to check if the event should be sent.
- if (JvmtiExport::can_post_interpreter_events()) {
- Label L;
- movl(rdx, Address(r15_thread, JavaThread::interp_only_mode_offset()));
- testl(rdx, rdx);
- jcc(Assembler::zero, L);
- call_VM(noreg, CAST_FROM_FN_PTR(address,
- InterpreterRuntime::post_method_entry));
- bind(L);
- }
-
- {
- SkipIfEqual skip(this, &DTraceMethodProbes, false);
- get_method(c_rarg1);
- call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry),
- r15_thread, c_rarg1);
- }
-
- // RedefineClasses() tracing support for obsolete method entry
- if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) {
- get_method(c_rarg1);
- call_VM_leaf(
- CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry),
- r15_thread, c_rarg1);
- }
-}
-
-
-void InterpreterMacroAssembler::notify_method_exit(
- TosState state, NotifyMethodExitMode mode) {
- // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
- // track stack depth. If it is possible to enter interp_only_mode we add
- // the code to check if the event should be sent.
- if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
- Label L;
- // Note: frame::interpreter_frame_result has a dependency on how the
- // method result is saved across the call to post_method_exit. If this
- // is changed then the interpreter_frame_result implementation will
- // need to be updated too.
-
- // For c++ interpreter the result is always stored at a known location in the frame
- // template interpreter will leave it on the top of the stack.
- NOT_CC_INTERP(push(state);)
- movl(rdx, Address(r15_thread, JavaThread::interp_only_mode_offset()));
- testl(rdx, rdx);
- jcc(Assembler::zero, L);
- call_VM(noreg,
- CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit));
- bind(L);
- NOT_CC_INTERP(pop(state));
- }
-
- {
- SkipIfEqual skip(this, &DTraceMethodProbes, false);
- NOT_CC_INTERP(push(state));
- get_method(c_rarg1);
- call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit),
- r15_thread, c_rarg1);
- NOT_CC_INTERP(pop(state));
- }
-}
-
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_64.hpp Tue Mar 17 14:03:05 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,240 +0,0 @@
-/*
- * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef CC_INTERP
- protected:
- // Interpreter specific version of call_VM_base
- virtual void call_VM_leaf_base(address entry_point,
- int number_of_arguments);
-
- virtual void call_VM_base(Register oop_result,
- Register java_thread,
- Register last_java_sp,
- address entry_point,
- int number_of_arguments,
- bool check_exceptions);
-
- virtual void check_and_handle_popframe(Register java_thread);
- virtual void check_and_handle_earlyret(Register java_thread);
-
- // base routine for all dispatches
- void dispatch_base(TosState state, address* table, bool verifyoop = true);
-#endif // CC_INTERP
-
- public:
- InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(r14), _bcp_register(r13) {}
-
- void load_earlyret_value(TosState state);
-
-#ifdef CC_INTERP
- void save_bcp() { /* not needed in c++ interpreter and harmless */ }
- void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
-
- // Helpers for runtime call arguments/results
- void get_method(Register reg);
-
-#else
-
- // Interpreter-specific registers
- void save_bcp() {
- movptr(Address(rbp, frame::interpreter_frame_bcp_offset * wordSize), r13);
- }
-
- void restore_bcp() {
- movptr(r13, Address(rbp, frame::interpreter_frame_bcp_offset * wordSize));
- }
-
- void restore_locals() {
- movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
- }
-
- // Helpers for runtime call arguments/results
- void get_method(Register reg) {
- movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
- }
-
- void get_const(Register reg) {
- get_method(reg);
- movptr(reg, Address(reg, Method::const_offset()));
- }
-
- void get_constant_pool(Register reg) {
- get_const(reg);
- movptr(reg, Address(reg, ConstMethod::constants_offset()));
- }
-
- void get_constant_pool_cache(Register reg) {
- get_constant_pool(reg);
- movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
- }
-
- void get_cpool_and_tags(Register cpool, Register tags) {
- get_constant_pool(cpool);
- movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
- }
-
- void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
- void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
- void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
-
- // load cpool->resolved_references(index);
- void load_resolved_reference_at_index(Register result, Register index);
-
- void pop_ptr(Register r = rax);
- void pop_i(Register r = rax);
- void pop_l(Register r = rax);
- void pop_f(XMMRegister r = xmm0);
- void pop_d(XMMRegister r = xmm0);
- void push_ptr(Register r = rax);
- void push_i(Register r = rax);
- void push_l(Register r = rax);
- void push_f(XMMRegister r = xmm0);
- void push_d(XMMRegister r = xmm0);
-
- void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
-
- void push(Register r ) { ((MacroAssembler*)this)->push(r); }
- void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
-
- void pop(TosState state); // transition vtos -> state
- void push(TosState state); // transition state -> vtos
-
- void empty_expression_stack() {
- movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
- // NULL last_sp until next java call
- movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
- }
-
- // Helpers for swap and dup
- void load_ptr(int n, Register val);
- void store_ptr(int n, Register val);
-
- // Generate a subtype check: branch to ok_is_subtype if sub_klass is
- // a subtype of super_klass.
- void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
-
- // Dispatching
- void dispatch_prolog(TosState state, int step = 0);
- void dispatch_epilog(TosState state, int step = 0);
- // dispatch via ebx (assume ebx is loaded already)
- void dispatch_only(TosState state);
- // dispatch normal table via ebx (assume ebx is loaded already)
- void dispatch_only_normal(TosState state);
- void dispatch_only_noverify(TosState state);
- // load ebx from [esi + step] and dispatch via ebx
- void dispatch_next(TosState state, int step = 0);
- // load ebx from [esi] and dispatch via ebx and table
- void dispatch_via (TosState state, address* table);
-
- // jump to an invoked target
- void prepare_to_jump_from_interpreted();
- void jump_from_interpreted(Register method, Register temp);
-
-
- // Returning from interpreted functions
- //
- // Removes the current activation (incl. unlocking of monitors)
- // and sets up the return address. This code is also used for
- // exception unwindwing. In that case, we do not want to throw
- // IllegalMonitorStateExceptions, since that might get us into an
- // infinite rethrow exception loop.
- // Additionally this code is used for popFrame and earlyReturn.
- // In popFrame case we want to skip throwing an exception,
- // installing an exception, and notifying jvmdi.
- // In earlyReturn case we only want to skip throwing an exception
- // and installing an exception.
- void remove_activation(TosState state, Register ret_addr,
- bool throw_monitor_exception = true,
- bool install_monitor_exception = true,
- bool notify_jvmdi = true);
-#endif // CC_INTERP
- void get_method_counters(Register method, Register mcs, Label& skip);
-
- // Object locking
- void lock_object (Register lock_reg);
- void unlock_object(Register lock_reg);
-
-#ifndef CC_INTERP
-
- // Interpreter profiling operations
- void set_method_data_pointer_for_bcp();
- void test_method_data_pointer(Register mdp, Label& zero_continue);
- void verify_method_data_pointer();
-
- void set_mdp_data_at(Register mdp_in, int constant, Register value);
- void increment_mdp_data_at(Address data, bool decrement = false);
- void increment_mdp_data_at(Register mdp_in, int constant,
- bool decrement = false);
- void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
- bool decrement = false);
- void increment_mask_and_jump(Address counter_addr,
- int increment, Address mask,
- Register scratch, bool preloaded,
- Condition cond, Label* where);
- void set_mdp_flag_at(Register mdp_in, int flag_constant);
- void test_mdp_data_at(Register mdp_in, int offset, Register value,
- Register test_value_out,
- Label& not_equal_continue);
-
- void record_klass_in_profile(Register receiver, Register mdp,
- Register reg2, bool is_virtual_call);
- void record_klass_in_profile_helper(Register receiver, Register mdp,
- Register reg2, int start_row,
- Label& done, bool is_virtual_call);
-
- void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
- void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
- void update_mdp_by_constant(Register mdp_in, int constant);
- void update_mdp_for_ret(Register return_bci);
-
- void profile_taken_branch(Register mdp, Register bumped_count);
- void profile_not_taken_branch(Register mdp);
- void profile_call(Register mdp);
- void profile_final_call(Register mdp);
- void profile_virtual_call(Register receiver, Register mdp,
- Register scratch2,
- bool receiver_can_be_null = false);
- void profile_ret(Register return_bci, Register mdp);
- void profile_null_seen(Register mdp);
- void profile_typecheck(Register mdp, Register klass, Register scratch);
- void profile_typecheck_failed(Register mdp);
- void profile_switch_default(Register mdp);
- void profile_switch_case(Register index_in_scratch, Register mdp,
- Register scratch2);
-
- // Debugging
- // only if +VerifyOops && state == atos
- void verify_oop(Register reg, TosState state = atos);
- // only if +VerifyFPU && (state == ftos || state == dtos)
- void verify_FPU(int stack_depth, TosState state = ftos);
-
-#endif // !CC_INTERP
-
- typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
-
- // support for jvmti/dtrace
- void notify_method_entry();
- void notify_method_exit(TosState state, NotifyMethodExitMode mode);
--- a/hotspot/src/os/aix/vm/vmError_aix.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/aix/vm/vmError_aix.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -109,7 +109,15 @@
}
sigthreadmask(SIG_UNBLOCK, &newset, NULL);
- VMError err(NULL, sig, NULL, info, ucVoid);
+ // support safefetch faults in error handling
+ ucontext_t* const uc = (ucontext_t*) ucVoid;
+ address const pc = uc ? os::Aix::ucontext_get_pc(uc) : NULL;
+ if (uc && pc && StubRoutines::is_safefetch_fault(pc)) {
+ os::Aix::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
+ return;
+ }
+
+ VMError err(NULL, sig, pc, info, ucVoid);
err.report_and_die();
}
--- a/hotspot/src/os/bsd/vm/os_bsd.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/bsd/vm/os_bsd.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -99,6 +99,7 @@
static void set_page_size(int val) { _page_size = val; }
static address ucontext_get_pc(ucontext_t* uc);
+ static void ucontext_set_pc(ucontext_t* uc, address pc);
static intptr_t* ucontext_get_sp(ucontext_t* uc);
static intptr_t* ucontext_get_fp(ucontext_t* uc);
--- a/hotspot/src/os/bsd/vm/vmError_bsd.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/bsd/vm/vmError_bsd.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -112,7 +112,16 @@
}
pthread_sigmask(SIG_UNBLOCK, &newset, NULL);
- VMError err(NULL, sig, NULL, info, ucVoid);
+ // support safefetch faults in error handling
+ ucontext_t* const uc = (ucontext_t*) ucVoid;
+ address const pc = uc ? os::Bsd::ucontext_get_pc(uc) : NULL;
+
+ if (uc && pc && StubRoutines::is_safefetch_fault(pc)) {
+ os::Bsd::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
+ return;
+ }
+
+ VMError err(NULL, sig, pc, info, ucVoid);
err.report_and_die();
}
--- a/hotspot/src/os/linux/vm/os_linux.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/linux/vm/os_linux.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -3732,14 +3732,14 @@
// Does this overlap the block we wanted? Give back the overlapped
// parts and try again.
- size_t top_overlap = requested_addr + (bytes + gap) - base[i];
- if (top_overlap >= 0 && top_overlap < bytes) {
+ ptrdiff_t top_overlap = requested_addr + (bytes + gap) - base[i];
+ if (top_overlap >= 0 && (size_t)top_overlap < bytes) {
unmap_memory(base[i], top_overlap);
base[i] += top_overlap;
size[i] = bytes - top_overlap;
} else {
- size_t bottom_overlap = base[i] + bytes - requested_addr;
- if (bottom_overlap >= 0 && bottom_overlap < bytes) {
+ ptrdiff_t bottom_overlap = base[i] + bytes - requested_addr;
+ if (bottom_overlap >= 0 && (size_t)bottom_overlap < bytes) {
unmap_memory(requested_addr, bottom_overlap);
size[i] = bytes - bottom_overlap;
} else {
@@ -6003,11 +6003,11 @@
}
if (strlen(core_pattern) == 0) {
- return 0;
+ return -1;
}
char *pid_pos = strstr(core_pattern, "%p");
- size_t written;
+ int written;
if (core_pattern[0] == '/') {
written = jio_snprintf(buffer, bufferSize, core_pattern);
@@ -6016,8 +6016,7 @@
const char* p = get_current_directory(cwd, PATH_MAX);
if (p == NULL) {
- assert(p != NULL, "failed to get current directory");
- return 0;
+ return -1;
}
if (core_pattern[0] == '|') {
@@ -6029,8 +6028,11 @@
}
}
- if ((written >= 0) && (written < bufferSize)
- && (pid_pos == NULL) && (core_pattern[0] != '|')) {
+ if (written < 0) {
+ return -1;
+ }
+
+ if (((size_t)written < bufferSize) && (pid_pos == NULL) && (core_pattern[0] != '|')) {
int core_uses_pid_file = ::open("/proc/sys/kernel/core_uses_pid", O_RDONLY);
if (core_uses_pid_file != -1) {
@@ -6038,7 +6040,7 @@
ssize_t ret = ::read(core_uses_pid_file, &core_uses_pid, 1);
::close(core_uses_pid_file);
- if (core_uses_pid == '1'){
+ if (core_uses_pid == '1') {
jio_snprintf(buffer + written, bufferSize - written,
".%d", current_process_id());
}
--- a/hotspot/src/os/linux/vm/os_linux.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/linux/vm/os_linux.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -143,6 +143,7 @@
static int vm_default_page_size(void) { return _vm_default_page_size; }
static address ucontext_get_pc(ucontext_t* uc);
+ static void ucontext_set_pc(ucontext_t* uc, address pc);
static intptr_t* ucontext_get_sp(ucontext_t* uc);
static intptr_t* ucontext_get_fp(ucontext_t* uc);
--- a/hotspot/src/os/linux/vm/vmError_linux.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/linux/vm/vmError_linux.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -112,7 +112,16 @@
}
pthread_sigmask(SIG_UNBLOCK, &newset, NULL);
- VMError err(NULL, sig, NULL, info, ucVoid);
+ // support safefetch faults in error handling
+ ucontext_t* const uc = (ucontext_t*) ucVoid;
+ address const pc = uc ? os::Linux::ucontext_get_pc(uc) : NULL;
+
+ if (uc && pc && StubRoutines::is_safefetch_fault(pc)) {
+ os::Linux::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
+ return;
+ }
+
+ VMError err(NULL, sig, pc, info, ucVoid);
err.report_and_die();
}
--- a/hotspot/src/os/solaris/vm/os_solaris.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/solaris/vm/os_solaris.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -137,6 +137,7 @@
// ucontext_get_fp() is only used by Solaris X86 (see note below)
static intptr_t* ucontext_get_fp(ucontext_t* uc);
static address ucontext_get_pc(ucontext_t* uc);
+ static void ucontext_set_pc(ucontext_t* uc, address pc);
// For Analyzer Forte AsyncGetCallTrace profiling support:
// Parameter ret_fp is only used by Solaris X86.
--- a/hotspot/src/os/solaris/vm/vmError_solaris.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os/solaris/vm/vmError_solaris.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -109,7 +109,15 @@
}
thr_sigsetmask(SIG_UNBLOCK, &newset, NULL);
- VMError err(NULL, sig, NULL, info, ucVoid);
+ // support safefetch faults in error handling
+ ucontext_t* const uc = (ucontext_t*) ucVoid;
+ address const pc = uc ? os::Solaris::ucontext_get_pc(uc) : NULL;
+ if (uc && pc && StubRoutines::is_safefetch_fault(pc)) {
+ os::Solaris::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
+ return;
+ }
+
+ VMError err(NULL, sig, pc, info, ucVoid);
err.report_and_die();
}
--- a/hotspot/src/os_cpu/aix_ppc/vm/globals_aix_ppc.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/aix_ppc/vm/globals_aix_ppc.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,6 +1,6 @@
/*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2012, 2013 SAP AG. All rights reserved.
+ * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012, 2015 SAP AG. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -48,7 +48,5 @@
// Only used on 64 bit platforms
define_pd_global(uintx,HeapBaseMinAddress, 2*G);
-// Only used on 64 bit Windows platforms
-define_pd_global(bool, UseVectoredExceptions, false);
#endif // OS_CPU_AIX_OJDKPPC_VM_GLOBALS_AIX_PPC_HPP
--- a/hotspot/src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -397,7 +397,7 @@
// continue at the next instruction after the faulting read. Returning
// garbage from this read is ok.
thread->set_pending_unsafe_access_error();
- uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4;
+ os::Aix::ucontext_set_pc(uc, pc + 4);
return 1;
}
}
@@ -420,7 +420,7 @@
// continue at the next instruction after the faulting read. Returning
// garbage from this read is ok.
thread->set_pending_unsafe_access_error();
- uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4;
+ os::Aix::ucontext_set_pc(uc, pc + 4);
return 1;
}
}
@@ -445,7 +445,7 @@
if (stub != NULL) {
// Save all thread context in case we need to restore it.
if (thread != NULL) thread->set_saved_exception_pc(pc);
- uc->uc_mcontext.jmp_context.iar = (unsigned long)stub;
+ os::Aix::ucontext_set_pc(uc, stub);
return 1;
}
--- a/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -309,6 +309,10 @@
return (address)uc->context_pc;
}
+void os::Bsd::ucontext_set_pc(ucontext_t * uc, address pc) {
+ uc->context_pc = (intptr_t)pc ;
+}
+
intptr_t* os::Bsd::ucontext_get_sp(ucontext_t * uc) {
return (intptr_t*)uc->context_sp;
}
@@ -463,7 +467,7 @@
pc = (address) os::Bsd::ucontext_get_pc(uc);
if (StubRoutines::is_safefetch_fault(pc)) {
- uc->context_pc = intptr_t(StubRoutines::continuation_for_safefetch_fault(pc));
+ os::Bsd::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
return 1;
}
@@ -703,7 +707,7 @@
// save all thread context in case we need to restore it
if (thread != NULL) thread->set_saved_exception_pc(pc);
- uc->context_pc = (intptr_t)stub;
+ os::Bsd::ucontext_set_pc(uc, stub);
return true;
}
--- a/hotspot/src/os_cpu/bsd_zero/vm/os_bsd_zero.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/bsd_zero/vm/os_bsd_zero.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -107,6 +107,10 @@
return NULL;
}
+void os::Bsd::ucontext_set_pc(ucontext_t * uc, address pc) {
+ ShouldNotCallThis();
+}
+
ExtendedPC os::fetch_frame_from_context(void* ucVoid,
intptr_t** ret_sp,
intptr_t** ret_fp) {
--- a/hotspot/src/os_cpu/linux_ppc/vm/globals_linux_ppc.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/linux_ppc/vm/globals_linux_ppc.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,6 +1,6 @@
/*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2012, 2013 SAP AG. All rights reserved.
+ * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012, 2015 SAP AG. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -48,7 +48,5 @@
// Only used on 64 bit platforms
define_pd_global(uintx,HeapBaseMinAddress, 2*G);
-// Only used on 64 bit Windows platforms
-define_pd_global(bool, UseVectoredExceptions, false);
#endif // OS_CPU_LINUX_PPC_VM_GLOBALS_LINUX_PPC_HPP
--- a/hotspot/src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -113,6 +113,14 @@
return (address)uc->uc_mcontext.regs->nip;
}
+// modify PC in ucontext.
+// Note: Only use this for an ucontext handed down to a signal handler. See comment
+// in ucontext_get_pc.
+void os::Linux::ucontext_set_pc(ucontext_t * uc, address pc) {
+ guarantee(uc->uc_mcontext.regs != NULL, "only use ucontext_set_pc in sigaction context");
+ uc->uc_mcontext.regs->nip = (unsigned long)pc;
+}
+
intptr_t* os::Linux::ucontext_get_sp(ucontext_t * uc) {
return (intptr_t*)uc->uc_mcontext.regs->gpr[1/*REG_SP*/];
}
@@ -213,7 +221,7 @@
if (uc) {
address const pc = os::Linux::ucontext_get_pc(uc);
if (pc && StubRoutines::is_safefetch_fault(pc)) {
- uc->uc_mcontext.regs->nip = (unsigned long)StubRoutines::continuation_for_safefetch_fault(pc);
+ os::Linux::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
return true;
}
}
@@ -360,7 +368,7 @@
// continue at the next instruction after the faulting read. Returning
// garbage from this read is ok.
thread->set_pending_unsafe_access_error();
- uc->uc_mcontext.regs->nip = ((unsigned long)pc) + 4;
+ os::Linux::ucontext_set_pc(uc, pc + 4);
return true;
}
}
@@ -379,7 +387,7 @@
// continue at the next instruction after the faulting read. Returning
// garbage from this read is ok.
thread->set_pending_unsafe_access_error();
- uc->uc_mcontext.regs->nip = ((unsigned long)pc) + 4;
+ os::Linux::ucontext_set_pc(uc, pc + 4);
return true;
}
}
@@ -402,7 +410,7 @@
if (stub != NULL) {
// Save all thread context in case we need to restore it.
if (thread != NULL) thread->set_saved_exception_pc(pc);
- uc->uc_mcontext.regs->nip = (unsigned long)stub;
+ os::Linux::ucontext_set_pc(uc, stub);
return true;
}
--- a/hotspot/src/os_cpu/linux_sparc/vm/os_linux_sparc.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/linux_sparc/vm/os_linux_sparc.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -85,11 +85,6 @@
CON_O7,
};
-static inline void set_cont_address(sigcontext* ctx, address addr) {
- SIG_PC(ctx) = (intptr_t)addr;
- SIG_NPC(ctx) = (intptr_t)(addr+4);
-}
-
// For Forte Analyzer AsyncGetCallTrace profiling support - thread is
// currently interrupted by SIGPROF.
// os::Solaris::fetch_frame_from_ucontext() tries to skip nested
@@ -351,6 +346,12 @@
return (address) SIG_PC((sigcontext*)uc);
}
+void os::Linux::ucontext_set_pc(ucontext_t* uc, address pc) {
+ sigcontext_t* ctx = (sigcontext_t*) uc;
+ SIG_PC(ctx) = (intptr_t)addr;
+ SIG_NPC(ctx) = (intptr_t)(addr+4);
+}
+
intptr_t* os::Linux::ucontext_get_sp(ucontext_t *uc) {
return (intptr_t*)
((intptr_t)SIG_REGS((sigcontext*)uc).u_regs[CON_O6] + STACK_BIAS);
@@ -366,7 +367,7 @@
inline static bool checkPrefetch(sigcontext* uc, address pc) {
if (StubRoutines::is_safefetch_fault(pc)) {
- set_cont_address(uc, address(StubRoutines::continuation_for_safefetch_fault(pc)));
+ os::Linux::ucontext_set_pc((ucontext_t*)uc, StubRoutines::continuation_for_safefetch_fault(pc));
return true;
}
return false;
@@ -666,7 +667,7 @@
// save all thread context in case we need to restore it
thread->set_saved_exception_pc(pc);
thread->set_saved_exception_npc(npc);
- set_cont_address(uc, stub);
+ os::Linux::ucontext_set_pc((ucontext_t*)uc, stub);
return true;
}
}
--- a/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -122,6 +122,10 @@
return (address)uc->uc_mcontext.gregs[REG_PC];
}
+void os::Linux::ucontext_set_pc(ucontext_t * uc, address pc) {
+ uc->uc_mcontext.gregs[REG_PC] = (intptr_t)pc;
+}
+
intptr_t* os::Linux::ucontext_get_sp(ucontext_t * uc) {
return (intptr_t*)uc->uc_mcontext.gregs[REG_SP];
}
@@ -279,7 +283,7 @@
pc = (address) os::Linux::ucontext_get_pc(uc);
if (StubRoutines::is_safefetch_fault(pc)) {
- uc->uc_mcontext.gregs[REG_PC] = intptr_t(StubRoutines::continuation_for_safefetch_fault(pc));
+ os::Linux::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
return 1;
}
@@ -514,7 +518,7 @@
// save all thread context in case we need to restore it
if (thread != NULL) thread->set_saved_exception_pc(pc);
- uc->uc_mcontext.gregs[REG_PC] = (greg_t)stub;
+ os::Linux::ucontext_set_pc(uc, stub);
return true;
}
--- a/hotspot/src/os_cpu/linux_zero/vm/os_linux_zero.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/linux_zero/vm/os_linux_zero.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -100,6 +100,10 @@
ShouldNotCallThis();
}
+void os::Linux::ucontext_set_pc(ucontext_t * uc, address pc) {
+ ShouldNotCallThis();
+}
+
ExtendedPC os::fetch_frame_from_context(void* ucVoid,
intptr_t** ret_sp,
intptr_t** ret_fp) {
--- a/hotspot/src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -184,6 +184,11 @@
return ExtendedPC(pc);
}
+void os::Solaris::ucontext_set_pc(ucontext_t* uc, address pc) {
+ uc->uc_mcontext.gregs [REG_PC] = (greg_t) pc;
+ uc->uc_mcontext.gregs [REG_nPC] = (greg_t) (pc + 4);
+}
+
// Assumes ucontext is valid
intptr_t* os::Solaris::ucontext_get_sp(ucontext_t *uc) {
return (intptr_t*)((intptr_t)uc->uc_mcontext.gregs[REG_SP] + STACK_BIAS);
@@ -355,8 +360,7 @@
// SafeFetch() support
if (StubRoutines::is_safefetch_fault(pc)) {
- uc->uc_mcontext.gregs[REG_PC] = intptr_t(StubRoutines::continuation_for_safefetch_fault(pc));
- uc->uc_mcontext.gregs[REG_nPC] = uc->uc_mcontext.gregs[REG_PC] + 4;
+ os::Solaris::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
return 1;
}
@@ -494,8 +498,7 @@
// simulate a branch to the stub (a "call" in the safepoint stub case)
// factor me: setPC
- uc->uc_mcontext.gregs[REG_PC ] = (greg_t)stub;
- uc->uc_mcontext.gregs[REG_nPC] = (greg_t)(stub + 4);
+ os::Solaris::ucontext_set_pc(uc, stub);
#ifndef PRODUCT
if (TraceJumps) thread->record_jump(stub, NULL, __FILE__, __LINE__);
--- a/hotspot/src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -174,6 +174,10 @@
return ExtendedPC((address)uc->uc_mcontext.gregs[REG_PC]);
}
+void os::Solaris::ucontext_set_pc(ucontext_t* uc, address pc) {
+ uc->uc_mcontext.gregs [REG_PC] = (greg_t) pc;
+}
+
// Assumes ucontext is valid
intptr_t* os::Solaris::ucontext_get_sp(ucontext_t *uc) {
return (intptr_t*)uc->uc_mcontext.gregs[REG_SP];
@@ -411,7 +415,7 @@
pc = (address) uc->uc_mcontext.gregs[REG_PC];
if (StubRoutines::is_safefetch_fault(pc)) {
- uc->uc_mcontext.gregs[REG_PC] = intptr_t(StubRoutines::continuation_for_safefetch_fault(pc));
+ os::Solaris::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
return true;
}
@@ -614,8 +618,7 @@
if (thread != NULL) thread->set_saved_exception_pc(pc);
// 12/02/99: On Sparc it appears that the full context is also saved
// but as yet, no one looks at or restores that saved context
- // factor me: setPC
- uc->uc_mcontext.gregs[REG_PC] = (greg_t)stub;
+ os::Solaris::ucontext_set_pc(uc, stub);
return true;
}
--- a/hotspot/src/share/vm/asm/codeBuffer.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/asm/codeBuffer.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -926,9 +926,6 @@
void CodeBuffer::take_over_code_from(CodeBuffer* cb) {
// Must already have disposed of the old blob somehow.
assert(blob() == NULL, "must be empty");
-#ifdef ASSERT
-
-#endif
// Take the new blob away from cb.
set_blob(cb->blob());
// Take over all the section pointers.
--- a/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -4306,7 +4306,18 @@
log->inline_fail("reason unknown");
}
}
-
+#if INCLUDE_TRACE
+ EventCompilerInlining event;
+ if (event.should_commit()) {
+ event.set_compileID(compilation()->env()->task()->compile_id());
+ event.set_message(msg);
+ event.set_succeeded(success);
+ event.set_bci(bci());
+ event.set_caller(method()->get_Method());
+ event.set_callee(callee->to_trace_struct());
+ event.commit();
+ }
+#endif // INCLUDE_TRACE
if (!PrintInlining && !compilation()->method()->has_option("PrintInlining")) {
return;
}
--- a/hotspot/src/share/vm/ci/ciMethod.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/ci/ciMethod.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -48,6 +48,7 @@
#include "runtime/deoptimization.hpp"
#include "utilities/bitMap.inline.hpp"
#include "utilities/xmlstream.hpp"
+#include "trace/tracing.hpp"
#ifdef COMPILER2
#include "ci/bcEscapeAnalyzer.hpp"
#include "ci/ciTypeFlow.hpp"
@@ -1466,3 +1467,13 @@
st->print(" loaded=false");
}
}
+
+#if INCLUDE_TRACE
+TraceStructCiMethod ciMethod::to_trace_struct() const {
+ TraceStructCiMethod result;
+ result.set_class(holder()->name()->as_utf8());
+ result.set_name(name()->as_utf8());
+ result.set_signature(signature()->as_symbol()->as_utf8());
+ return result;
+}
+#endif
--- a/hotspot/src/share/vm/ci/ciMethod.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/ci/ciMethod.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -32,13 +32,14 @@
#include "compiler/methodLiveness.hpp"
#include "prims/methodHandles.hpp"
#include "utilities/bitMap.hpp"
+#include "trace/tracing.hpp"
class ciMethodBlocks;
class MethodLiveness;
class BitMap;
class Arena;
class BCEscapeAnalyzer;
-
+class InlineTree;
// ciMethod
//
@@ -52,6 +53,7 @@
friend class ciBytecodeStream;
friend class ciMethodHandle;
friend class ciReplay;
+ friend class InlineTree;
private:
// General method information.
@@ -95,12 +97,6 @@
ciMethod(methodHandle h_m, ciInstanceKlass* holder);
ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature, ciInstanceKlass* accessor);
- Method* get_Method() const {
- Method* m = (Method*)_metadata;
- assert(m != NULL, "illegal use of unloaded method");
- return m;
- }
-
oop loader() const { return _holder->loader(); }
const char* type_string() { return "ciMethod"; }
@@ -158,6 +154,11 @@
}
}
+ Method* get_Method() const {
+ Method* m = (Method*)_metadata;
+ assert(m != NULL, "illegal use of unloaded method");
+ return m;
+ }
// Method code and related information.
address code() { if (_code == NULL) load_code(); return _code; }
@@ -339,6 +340,10 @@
// Print the name of this method in various incarnations.
void print_name(outputStream* st = tty);
void print_short_name(outputStream* st = tty);
+
+#if INCLUDE_TRACE
+ TraceStructCiMethod to_trace_struct() const;
+#endif
};
#endif // SHARE_VM_CI_CIMETHOD_HPP
--- a/hotspot/src/share/vm/classfile/classLoaderData.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/classLoaderData.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -467,6 +467,12 @@
} else {
ShouldNotReachHere();
}
+ } else {
+ // Metadata is alive.
+ // If scratch_class is on stack then it shouldn't be on this list!
+ assert(!m->is_klass() || !((InstanceKlass*)m)->is_scratch_class(),
+ "scratch classes on this list should be dead");
+ // Also should assert that other metadata on the list was found in handles.
}
}
}
@@ -737,11 +743,22 @@
// Move class loader data from main list to the unloaded list for unloading
// and deallocation later.
-bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure, bool clean_alive) {
+bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure,
+ bool clean_previous_versions) {
+
ClassLoaderData* data = _head;
ClassLoaderData* prev = NULL;
bool seen_dead_loader = false;
+ // Mark metadata seen on the stack only so we can delete unneeded entries.
+ // Only walk all metadata, including the expensive code cache walk, for Full GC
+ // and only if class redefinition and if there's previous versions of
+ // Klasses to delete.
+ bool walk_all_metadata = clean_previous_versions &&
+ JvmtiExport::has_redefined_a_class() &&
+ InstanceKlass::has_previous_versions();
+ MetadataOnStackMark md_on_stack(walk_all_metadata);
+
// Save previous _unloading pointer for CMS which may add to unloading list before
// purging and we don't want to rewalk the previously unloaded class loader data.
_saved_unloading = _unloading;
@@ -749,6 +766,11 @@
data = _head;
while (data != NULL) {
if (data->is_alive(is_alive_closure)) {
+ // clean metaspace
+ if (walk_all_metadata) {
+ data->classes_do(InstanceKlass::purge_previous_versions);
+ }
+ data->free_deallocate_list();
prev = data;
data = data->next();
continue;
@@ -770,11 +792,6 @@
_unloading = dead;
}
- if (clean_alive) {
- // Clean previous versions and the deallocate list.
- ClassLoaderDataGraph::clean_metaspaces();
- }
-
if (seen_dead_loader) {
post_class_unload_events();
}
@@ -782,21 +799,6 @@
return seen_dead_loader;
}
-void ClassLoaderDataGraph::clean_metaspaces() {
- // mark metadata seen on the stack and code cache so we can delete unneeded entries.
- bool has_redefined_a_class = JvmtiExport::has_redefined_a_class();
- MetadataOnStackMark md_on_stack(has_redefined_a_class);
-
- if (has_redefined_a_class) {
- for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
- data->classes_do(InstanceKlass::purge_previous_versions);
- }
- }
-
- // Should purge the previous version before deallocating.
- free_deallocate_lists();
-}
-
void ClassLoaderDataGraph::purge() {
assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
ClassLoaderData* list = _unloading;
@@ -829,12 +831,6 @@
#endif
}
-void ClassLoaderDataGraph::free_deallocate_lists() {
- for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
- cld->free_deallocate_list();
- }
-}
-
// CDS support
// Global metaspaces for writing information to the shared archive. When
--- a/hotspot/src/share/vm/classfile/classLoaderData.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/classLoaderData.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -75,7 +75,6 @@
static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS);
static void post_class_unload_events(void);
- static void clean_metaspaces();
public:
static ClassLoaderData* find_or_create(Handle class_loader, TRAPS);
static void purge();
@@ -95,7 +94,7 @@
static void methods_do(void f(Method*));
static void loaded_classes_do(KlassClosure* klass_closure);
static void classes_unloading_do(void f(Klass* const));
- static bool do_unloading(BoolObjectClosure* is_alive, bool clean_alive);
+ static bool do_unloading(BoolObjectClosure* is_alive, bool clean_previous_versions);
// CMS support.
static void remember_new_clds(bool remember) { _saved_head = (remember ? _head : NULL); }
@@ -114,8 +113,6 @@
static bool has_metaspace_oom() { return _metaspace_oom; }
static void set_metaspace_oom(bool value) { _metaspace_oom = value; }
- static void free_deallocate_lists();
-
static void dump_on(outputStream * const out) PRODUCT_RETURN;
static void dump() { dump_on(tty); }
static void verify();
--- a/hotspot/src/share/vm/classfile/metadataOnStackMark.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/metadataOnStackMark.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -33,26 +33,31 @@
#include "services/threadService.hpp"
#include "utilities/chunkedList.hpp"
-volatile MetadataOnStackBuffer* MetadataOnStackMark::_used_buffers = NULL;
-volatile MetadataOnStackBuffer* MetadataOnStackMark::_free_buffers = NULL;
+MetadataOnStackBuffer* MetadataOnStackMark::_used_buffers = NULL;
+MetadataOnStackBuffer* MetadataOnStackMark::_free_buffers = NULL;
+MetadataOnStackBuffer* MetadataOnStackMark::_current_buffer = NULL;
NOT_PRODUCT(bool MetadataOnStackMark::_is_active = false;)
// Walk metadata on the stack and mark it so that redefinition doesn't delete
-// it. Class unloading also walks the previous versions and might try to
-// delete it, so this class is used by class unloading also.
-MetadataOnStackMark::MetadataOnStackMark(bool visit_code_cache) {
+// it. Class unloading only deletes in-error class files, methods created by
+// the relocator and dummy constant pools. None of these appear anywhere except
+// in metadata Handles.
+MetadataOnStackMark::MetadataOnStackMark(bool redefinition_walk) {
assert(SafepointSynchronize::is_at_safepoint(), "sanity check");
assert(_used_buffers == NULL, "sanity check");
+ assert(!_is_active, "MetadataOnStackMarks do not nest");
NOT_PRODUCT(_is_active = true;)
- Threads::metadata_do(Metadata::mark_on_stack);
- if (visit_code_cache) {
+ Threads::metadata_handles_do(Metadata::mark_on_stack);
+
+ if (redefinition_walk) {
+ Threads::metadata_do(Metadata::mark_on_stack);
CodeCache::alive_nmethods_do(nmethod::mark_on_stack);
+ CompileBroker::mark_on_stack();
+ JvmtiCurrentBreakpoints::metadata_do(Metadata::mark_on_stack);
+ ThreadService::metadata_do(Metadata::mark_on_stack);
}
- CompileBroker::mark_on_stack();
- JvmtiCurrentBreakpoints::metadata_do(Metadata::mark_on_stack);
- ThreadService::metadata_do(Metadata::mark_on_stack);
}
MetadataOnStackMark::~MetadataOnStackMark() {
@@ -60,10 +65,9 @@
// Unmark everything that was marked. Can't do the same walk because
// redefine classes messes up the code cache so the set of methods
// might not be the same.
+ retire_current_buffer();
- retire_buffer_for_thread(Thread::current());
-
- MetadataOnStackBuffer* buffer = const_cast<MetadataOnStackBuffer* >(_used_buffers);
+ MetadataOnStackBuffer* buffer = _used_buffers;
while (buffer != NULL) {
// Clear on stack state for all metadata.
size_t size = buffer->size();
@@ -77,7 +81,7 @@
// Move the buffer to the free list.
buffer->clear();
buffer->set_next_used(NULL);
- buffer->set_next_free(const_cast<MetadataOnStackBuffer*>(_free_buffers));
+ buffer->set_next_free(_free_buffers);
_free_buffers = buffer;
// Step to next used buffer.
@@ -93,35 +97,23 @@
if (buffer == NULL) {
return;
}
-
- MetadataOnStackBuffer* old_head;
-
- do {
- old_head = const_cast<MetadataOnStackBuffer*>(_used_buffers);
- buffer->set_next_used(old_head);
- } while (Atomic::cmpxchg_ptr(buffer, &_used_buffers, old_head) != old_head);
-}
-
-void MetadataOnStackMark::retire_buffer_for_thread(Thread* thread) {
- retire_buffer(thread->metadata_on_stack_buffer());
- thread->set_metadata_on_stack_buffer(NULL);
+ buffer->set_next_used(_used_buffers);
+ _used_buffers = buffer;
}
-bool MetadataOnStackMark::has_buffer_for_thread(Thread* thread) {
- return thread->metadata_on_stack_buffer() != NULL;
+// Current buffer is full or we're ready to walk them, add it to the used list.
+void MetadataOnStackMark::retire_current_buffer() {
+ retire_buffer(_current_buffer);
+ _current_buffer = NULL;
}
+// Get buffer off free list.
MetadataOnStackBuffer* MetadataOnStackMark::allocate_buffer() {
- MetadataOnStackBuffer* allocated;
- MetadataOnStackBuffer* new_head;
+ MetadataOnStackBuffer* allocated = _free_buffers;
- do {
- allocated = const_cast<MetadataOnStackBuffer*>(_free_buffers);
- if (allocated == NULL) {
- break;
- }
- new_head = allocated->next_free();
- } while (Atomic::cmpxchg_ptr(new_head, &_free_buffers, allocated) != allocated);
+ if (allocated != NULL) {
+ _free_buffers = allocated->next_free();
+ }
if (allocated == NULL) {
allocated = new MetadataOnStackBuffer();
@@ -133,10 +125,10 @@
}
// Record which objects are marked so we can unmark the same objects.
-void MetadataOnStackMark::record(Metadata* m, Thread* thread) {
+void MetadataOnStackMark::record(Metadata* m) {
assert(_is_active, "metadata on stack marking is active");
- MetadataOnStackBuffer* buffer = thread->metadata_on_stack_buffer();
+ MetadataOnStackBuffer* buffer = _current_buffer;
if (buffer != NULL && buffer->is_full()) {
retire_buffer(buffer);
@@ -145,7 +137,7 @@
if (buffer == NULL) {
buffer = allocate_buffer();
- thread->set_metadata_on_stack_buffer(buffer);
+ _current_buffer = buffer;
}
buffer->push(m);
--- a/hotspot/src/share/vm/classfile/metadataOnStackMark.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/metadataOnStackMark.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -36,23 +36,23 @@
// or executing methods, so that it can't be deleted during class redefinition
// and class unloading.
// This is also used for other things that can be deallocated, like class
-// metadata during parsing, relocated methods, and methods in backtraces.
+// metadata during parsing if errors occur, relocated methods, and temporary
+// constant pools.
class MetadataOnStackMark : public StackObj {
NOT_PRODUCT(static bool _is_active;)
-
- static volatile MetadataOnStackBuffer* _used_buffers;
- static volatile MetadataOnStackBuffer* _free_buffers;
+ static MetadataOnStackBuffer* _used_buffers;
+ static MetadataOnStackBuffer* _free_buffers;
+ static MetadataOnStackBuffer* _current_buffer;
static MetadataOnStackBuffer* allocate_buffer();
static void retire_buffer(MetadataOnStackBuffer* buffer);
public:
- MetadataOnStackMark(bool visit_code_cache);
+ MetadataOnStackMark(bool redefinition_walk);
~MetadataOnStackMark();
- static void record(Metadata* m, Thread* thread);
- static void retire_buffer_for_thread(Thread* thread);
- static bool has_buffer_for_thread(Thread* thread);
+ static void record(Metadata* m);
+ static void retire_current_buffer();
};
#endif // SHARE_VM_CLASSFILE_METADATAONSTACKMARK_HPP
--- a/hotspot/src/share/vm/classfile/systemDictionary.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/systemDictionary.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1368,8 +1368,6 @@
ClassLoaderData* loader_data = k->class_loader_data();
Handle class_loader_h(THREAD, loader_data->class_loader());
- for (uintx it = 0; it < GCExpandToAllocateDelayMillis; it++){}
-
// for bootstrap and other parallel classloaders don't acquire lock,
// use placeholder token
// If a parallelCapable class loader calls define_instance_class instead of
@@ -1690,9 +1688,11 @@
// Assumes classes in the SystemDictionary are only unloaded at a safepoint
// Note: anonymous classes are not in the SD.
-bool SystemDictionary::do_unloading(BoolObjectClosure* is_alive, bool clean_alive) {
+bool SystemDictionary::do_unloading(BoolObjectClosure* is_alive,
+ bool clean_previous_versions) {
// First, mark for unload all ClassLoaderData referencing a dead class loader.
- bool unloading_occurred = ClassLoaderDataGraph::do_unloading(is_alive, clean_alive);
+ bool unloading_occurred = ClassLoaderDataGraph::do_unloading(is_alive,
+ clean_previous_versions);
if (unloading_occurred) {
dictionary()->do_unloading();
constraints()->purge_loader_constraints();
--- a/hotspot/src/share/vm/classfile/systemDictionary.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/classfile/systemDictionary.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -335,7 +335,8 @@
// Unload (that is, break root links to) all unmarked classes and
// loaders. Returns "true" iff something was unloaded.
- static bool do_unloading(BoolObjectClosure* is_alive, bool clean_alive = true);
+ static bool do_unloading(BoolObjectClosure* is_alive,
+ bool clean_previous_versions = true);
// Used by DumpSharedSpaces only to remove classes that failed verification
static void remove_classes_in_error_state();
--- a/hotspot/src/share/vm/code/nmethod.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/code/nmethod.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1572,17 +1572,12 @@
set_unload_reported();
}
-void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive, bool mark_on_stack) {
+void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive) {
if (ic->is_icholder_call()) {
// The only exception is compiledICHolder oops which may
// yet be marked below. (We check this further below).
CompiledICHolder* cichk_oop = ic->cached_icholder();
- if (mark_on_stack) {
- Metadata::mark_on_stack(cichk_oop->holder_method());
- Metadata::mark_on_stack(cichk_oop->holder_klass());
- }
-
if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) &&
cichk_oop->holder_klass()->is_loader_alive(is_alive)) {
return;
@@ -1590,10 +1585,6 @@
} else {
Metadata* ic_oop = ic->cached_metadata();
if (ic_oop != NULL) {
- if (mark_on_stack) {
- Metadata::mark_on_stack(ic_oop);
- }
-
if (ic_oop->is_klass()) {
if (((Klass*)ic_oop)->is_loader_alive(is_alive)) {
return;
@@ -1634,8 +1625,7 @@
// The RedefineClasses() API can cause the class unloading invariant
// to no longer be true. See jvmtiExport.hpp for details.
// Also, leave a debugging breadcrumb in local flag.
- bool a_class_was_redefined = JvmtiExport::has_redefined_a_class();
- if (a_class_was_redefined) {
+ if (JvmtiExport::has_redefined_a_class()) {
// This set of the unloading_occurred flag is done before the
// call to post_compiled_method_unload() so that the unloading
// of this nmethod is reported.
@@ -1654,7 +1644,7 @@
while(iter.next()) {
if (iter.type() == relocInfo::virtual_call_type) {
CompiledIC *ic = CompiledIC_at(&iter);
- clean_ic_if_metadata_is_dead(ic, is_alive, false);
+ clean_ic_if_metadata_is_dead(ic, is_alive);
}
}
}
@@ -1741,33 +1731,6 @@
return false;
}
-void nmethod::mark_metadata_on_stack_at(RelocIterator* iter_at_metadata) {
- assert(iter_at_metadata->type() == relocInfo::metadata_type, "Wrong relocation type");
-
- metadata_Relocation* r = iter_at_metadata->metadata_reloc();
- // In this metadata, we must only follow those metadatas directly embedded in
- // the code. Other metadatas (oop_index>0) are seen as part of
- // the metadata section below.
- assert(1 == (r->metadata_is_immediate()) +
- (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()),
- "metadata must be found in exactly one place");
- if (r->metadata_is_immediate() && r->metadata_value() != NULL) {
- Metadata* md = r->metadata_value();
- if (md != _method) Metadata::mark_on_stack(md);
- }
-}
-
-void nmethod::mark_metadata_on_stack_non_relocs() {
- // Visit the metadata section
- for (Metadata** p = metadata_begin(); p < metadata_end(); p++) {
- if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops
- Metadata* md = *p;
- Metadata::mark_on_stack(md);
- }
-
- // Visit metadata not embedded in the other places.
- if (_method != NULL) Metadata::mark_on_stack(_method);
-}
bool nmethod::do_unloading_parallel(BoolObjectClosure* is_alive, bool unloading_occurred) {
ResourceMark rm;
@@ -1790,19 +1753,13 @@
// The RedefineClasses() API can cause the class unloading invariant
// to no longer be true. See jvmtiExport.hpp for details.
// Also, leave a debugging breadcrumb in local flag.
- bool a_class_was_redefined = JvmtiExport::has_redefined_a_class();
- if (a_class_was_redefined) {
+ if (JvmtiExport::has_redefined_a_class()) {
// This set of the unloading_occurred flag is done before the
// call to post_compiled_method_unload() so that the unloading
// of this nmethod is reported.
unloading_occurred = true;
}
- // When class redefinition is used all metadata in the CodeCache has to be recorded,
- // so that unused "previous versions" can be purged. Since walking the CodeCache can
- // be expensive, the "mark on stack" is piggy-backed on this parallel unloading code.
- bool mark_metadata_on_stack = a_class_was_redefined;
-
// Exception cache
clean_exception_cache(is_alive);
@@ -1818,7 +1775,7 @@
if (unloading_occurred) {
// If class unloading occurred we first iterate over all inline caches and
// clear ICs where the cached oop is referring to an unloaded klass or method.
- clean_ic_if_metadata_is_dead(CompiledIC_at(&iter), is_alive, mark_metadata_on_stack);
+ clean_ic_if_metadata_is_dead(CompiledIC_at(&iter), is_alive);
}
postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this);
@@ -1839,16 +1796,10 @@
break;
case relocInfo::metadata_type:
- if (mark_metadata_on_stack) {
- mark_metadata_on_stack_at(&iter);
- }
+ break; // nothing to do.
}
}
- if (mark_metadata_on_stack) {
- mark_metadata_on_stack_non_relocs();
- }
-
if (is_unloaded) {
return postponed;
}
--- a/hotspot/src/share/vm/code/nmethod.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/code/nmethod.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -593,9 +593,6 @@
bool can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred);
bool unload_if_dead_at(RelocIterator *iter_at_oop, BoolObjectClosure* is_alive, bool unloading_occurred);
- void mark_metadata_on_stack_at(RelocIterator* iter_at_metadata);
- void mark_metadata_on_stack_non_relocs();
-
public:
void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map,
OopClosure* f);
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -2170,12 +2170,13 @@
g1h->secondary_free_list_add(&tmp_free_list);
SecondaryFreeList_lock->notify_all();
}
-
+#ifndef PRODUCT
if (G1StressConcRegionFreeing) {
for (uintx i = 0; i < G1StressConcRegionFreeingDelayMillis; ++i) {
os::sleep(Thread::current(), (jlong) 1, false);
}
}
+#endif
}
}
assert(tmp_free_list.is_empty(), "post-condition");
@@ -2532,11 +2533,6 @@
G1CMTraceTime trace("Unloading", G1Log::finer());
if (ClassUnloadingWithConcurrentMark) {
- // Cleaning of klasses depends on correct information from MetadataMarkOnStack. The CodeCache::mark_on_stack
- // part is too slow to be done serially, so it is handled during the weakRefsWorkParallelPart phase.
- // Defer the cleaning until we have complete on_stack data.
- MetadataOnStackMark md_on_stack(false /* Don't visit the code cache at this point */);
-
bool purged_classes;
{
@@ -2548,11 +2544,6 @@
G1CMTraceTime trace("Parallel Unloading", G1Log::finest());
weakRefsWorkParallelPart(&g1_is_alive, purged_classes);
}
-
- {
- G1CMTraceTime trace("Deallocate Metadata", G1Log::finest());
- ClassLoaderDataGraph::free_deallocate_lists();
- }
}
if (G1StringDedup::is_enabled()) {
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -853,7 +853,7 @@
// Returns the card bitmap for a given task or worker id.
BitMap* count_card_bitmap_for(uint worker_id) {
- assert(0 <= worker_id && worker_id < _max_worker_id, "oob");
+ assert(worker_id < _max_worker_id, "oob");
assert(_count_card_bitmaps != NULL, "uninitialized");
BitMap* task_card_bm = &_count_card_bitmaps[worker_id];
assert(task_card_bm->size() == _card_bm.size(), "size mismatch");
@@ -863,7 +863,7 @@
// Returns the array containing the marked bytes for each region,
// for the given worker or task id.
size_t* count_marked_bytes_array_for(uint worker_id) {
- assert(0 <= worker_id && worker_id < _max_worker_id, "oob");
+ assert(worker_id < _max_worker_id, "oob");
assert(_count_marked_bytes != NULL, "uninitialized");
size_t* marked_bytes_array = _count_marked_bytes[worker_id];
assert(marked_bytes_array != NULL, "uninitialized");
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CardCounts.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CardCounts.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -84,13 +84,13 @@
"_ct_bot: " PTR_FORMAT,
p2i(card_ptr), p2i(_ct_bot)));
size_t card_num = pointer_delta(card_ptr, _ct_bot, sizeof(jbyte));
- assert(card_num >= 0 && card_num < _reserved_max_card_num,
+ assert(card_num < _reserved_max_card_num,
err_msg("card pointer out of range: " PTR_FORMAT, p2i(card_ptr)));
return card_num;
}
jbyte* card_num_2_ptr(size_t card_num) {
- assert(card_num >= 0 && card_num < _reserved_max_card_num,
+ assert(card_num < _reserved_max_card_num,
err_msg("card num out of range: "SIZE_FORMAT, card_num));
return (jbyte*) (_ct_bot + card_num);
}
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -4909,10 +4909,6 @@
clean_nmethod(claimed_nmethods[i]);
}
}
-
- // The nmethod cleaning helps out and does the CodeCache part of MetadataOnStackMark.
- // Need to retire the buffers now that this thread has stopped cleaning nmethods.
- MetadataOnStackMark::retire_buffer_for_thread(Thread::current());
}
void work_second_pass(uint worker_id) {
@@ -4965,9 +4961,6 @@
// G1 specific cleanup work that has
// been moved here to be done in parallel.
ik->clean_dependent_nmethods();
- if (JvmtiExport::has_redefined_a_class()) {
- InstanceKlass::purge_previous_versions(ik);
- }
}
void work() {
@@ -5002,18 +4995,8 @@
_klass_cleaning_task(is_alive) {
}
- void pre_work_verification() {
- assert(!MetadataOnStackMark::has_buffer_for_thread(Thread::current()), "Should be empty");
- }
-
- void post_work_verification() {
- assert(!MetadataOnStackMark::has_buffer_for_thread(Thread::current()), "Should be empty");
- }
-
// The parallel work done by all worker threads.
void work(uint worker_id) {
- pre_work_verification();
-
// Do first pass of code cache cleaning.
_code_cache_task.work_first_pass(worker_id);
@@ -5032,8 +5015,6 @@
// Clean all klasses that were not unloaded.
_klass_cleaning_task.work();
-
- post_work_verification();
}
};
@@ -5425,7 +5406,7 @@
// limit is set using max_num_q() - which was set using ParallelGCThreads.
// So this must be true - but assert just in case someone decides to
// change the worker ids.
- assert(0 <= worker_id && worker_id < limit, "sanity");
+ assert(worker_id < limit, "sanity");
assert(!rp->discovery_is_atomic(), "check this code");
// Select discovered lists [i, i+stride, i+2*stride,...,limit)
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -324,9 +324,8 @@
void HeapRegion::note_self_forwarding_removal_end(bool during_initial_mark,
bool during_conc_mark,
size_t marked_bytes) {
- assert(0 <= marked_bytes && marked_bytes <= used(),
- err_msg("marked: "SIZE_FORMAT" used: "SIZE_FORMAT,
- marked_bytes, used()));
+ assert(marked_bytes <= used(),
+ err_msg("marked: "SIZE_FORMAT" used: "SIZE_FORMAT, marked_bytes, used()));
_prev_top_at_mark_start = top();
_prev_marked_bytes = marked_bytes;
}
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionManager.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionManager.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -270,7 +270,7 @@
const uint n_regions = hrclaimer->n_regions();
for (uint count = 0; count < n_regions; count++) {
const uint index = (start_index + count) % n_regions;
- assert(0 <= index && index < n_regions, "sanity");
+ assert(index < n_regions, "sanity");
// Skip over unavailable regions
if (!is_available(index)) {
continue;
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -541,7 +541,7 @@
PerRegionTable*
OtherRegionsTable::find_region_table(size_t ind, HeapRegion* hr) const {
- assert(0 <= ind && ind < _max_fine_entries, "Preconditions.");
+ assert(ind < _max_fine_entries, "Preconditions.");
PerRegionTable* prt = _fine_grain_regions[ind];
while (prt != NULL && prt->hr() != hr) {
prt = prt->collision_list_next();
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionSet.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionSet.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -57,7 +57,7 @@
check_mt_safety();
guarantee(( is_empty() && length() == 0 && total_capacity_bytes() == 0) ||
- (!is_empty() && length() >= 0 && total_capacity_bytes() >= 0),
+ (!is_empty() && length() > 0 && total_capacity_bytes() > 0) ,
hrs_ext_msg(this, "invariant"));
}
--- a/hotspot/src/share/vm/gc_implementation/g1/ptrQueue.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/ptrQueue.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -58,7 +58,7 @@
void PtrQueue::enqueue_known_active(void* ptr) {
- assert(0 <= _index && _index <= _sz, "Invariant.");
+ assert(_index <= _sz, "Invariant.");
assert(_index == 0 || _buf != NULL, "invariant");
while (_index == 0) {
@@ -68,7 +68,7 @@
assert(_index > 0, "postcondition");
_index -= oopSize;
_buf[byte_index_to_index((int)_index)] = ptr;
- assert(0 <= _index && _index <= _sz, "Invariant.");
+ assert(_index <= _sz, "Invariant.");
}
void PtrQueue::locking_enqueue_completed_buffer(void** buf) {
@@ -194,7 +194,6 @@
_buf = qset()->allocate_buffer();
_sz = qset()->buffer_size();
_index = _sz;
- assert(0 <= _index && _index <= _sz, "Invariant.");
}
bool PtrQueueSet::process_or_enqueue_complete_buffer(void** buf) {
--- a/hotspot/src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -195,8 +195,9 @@
// our closures depend on this property and do not protect against
// double scans.
- uintptr_t cur_chunk_index = addr_to_chunk_index(chunk_mr.start());
- cur_chunk_index = cur_chunk_index - lowest_non_clean_base_chunk_index;
+ uintptr_t start_chunk_index = addr_to_chunk_index(chunk_mr.start());
+ assert(start_chunk_index >= lowest_non_clean_base_chunk_index, "Bounds error.");
+ uintptr_t cur_chunk_index = start_chunk_index - lowest_non_clean_base_chunk_index;
NOISY(tty->print_cr("===========================================================================");)
NOISY(tty->print_cr(" process_chunk_boundary: Called with [" PTR_FORMAT "," PTR_FORMAT ")",
@@ -242,8 +243,7 @@
if (first_dirty_card != NULL) {
NOISY(tty->print_cr(" LNC: Found a dirty card at " PTR_FORMAT " in current chunk",
first_dirty_card);)
- assert(0 <= cur_chunk_index && cur_chunk_index < lowest_non_clean_chunk_size,
- "Bounds error.");
+ assert(cur_chunk_index < lowest_non_clean_chunk_size, "Bounds error.");
assert(lowest_non_clean[cur_chunk_index] == NULL,
"Write exactly once : value should be stable hereafter for this round");
lowest_non_clean[cur_chunk_index] = first_dirty_card;
--- a/hotspot/src/share/vm/gc_implementation/shared/gcUtil.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/shared/gcUtil.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -103,7 +103,7 @@
static inline float exp_avg(float avg, float sample,
unsigned int weight) {
- assert(0 <= weight && weight <= 100, "weight must be a percent");
+ assert(weight <= 100, "weight must be a percent");
return (100.0F - weight) * avg / 100.0F + weight * sample / 100.0F;
}
static inline size_t exp_avg(size_t avg, size_t sample,
--- a/hotspot/src/share/vm/gc_implementation/shared/liveRange.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/shared/liveRange.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -42,7 +42,6 @@
MemRegion::set_end(e);
}
void set_word_size(size_t ws) {
- assert(ws >= 0, "should be a non-zero range");
MemRegion::set_word_size(ws);
}
--- a/hotspot/src/share/vm/gc_implementation/shared/mutableSpace.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/gc_implementation/shared/mutableSpace.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -36,8 +36,7 @@
PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
MutableSpace::MutableSpace(size_t alignment): ImmutableSpace(), _top(NULL), _alignment(alignment) {
- assert(MutableSpace::alignment() >= 0 &&
- MutableSpace::alignment() % os::vm_page_size() == 0,
+ assert(MutableSpace::alignment() % os::vm_page_size() == 0,
"Space should be aligned");
_mangler = new MutableSpaceMangler(this);
}
--- a/hotspot/src/share/vm/memory/allocation.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/memory/allocation.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -562,7 +562,6 @@
// Reallocate storage in Arena.
void *Arena::Arealloc(void* old_ptr, size_t old_size, size_t new_size, AllocFailType alloc_failmode) {
- assert(new_size >= 0, "bad size");
if (new_size == 0) return NULL;
#ifdef ASSERT
if (UseMallocOnly) {
--- a/hotspot/src/share/vm/memory/blockOffsetTable.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/memory/blockOffsetTable.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -792,6 +792,5 @@
}
size_t BlockOffsetArrayContigSpace::last_active_index() const {
- size_t result = _next_offset_index - 1;
- return result >= 0 ? result : 0;
+ return _next_offset_index == 0 ? 0 : _next_offset_index - 1;
}
--- a/hotspot/src/share/vm/memory/heap.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/memory/heap.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -52,7 +52,7 @@
void CodeHeap::mark_segmap_as_free(size_t beg, size_t end) {
- assert(0 <= beg && beg < _number_of_committed_segments, "interval begin out of bounds");
+ assert( beg < _number_of_committed_segments, "interval begin out of bounds");
assert(beg < end && end <= _number_of_committed_segments, "interval end out of bounds");
// setup _segmap pointers for faster indexing
address p = (address)_segmap.low() + beg;
@@ -63,7 +63,7 @@
void CodeHeap::mark_segmap_as_used(size_t beg, size_t end) {
- assert(0 <= beg && beg < _number_of_committed_segments, "interval begin out of bounds");
+ assert( beg < _number_of_committed_segments, "interval begin out of bounds");
assert(beg < end && end <= _number_of_committed_segments, "interval end out of bounds");
// setup _segmap pointers for faster indexing
address p = (address)_segmap.low() + beg;
--- a/hotspot/src/share/vm/memory/referenceProcessor.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/memory/referenceProcessor.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -987,7 +987,7 @@
id = next_id();
}
}
- assert(0 <= id && id < _max_num_q, "Id is out-of-bounds (call Freud?)");
+ assert(id < _max_num_q, "Id is out-of-bounds (call Freud?)");
// Get the discovered queue to which we will add
DiscoveredList* list = NULL;
@@ -1345,7 +1345,7 @@
}
const char* ReferenceProcessor::list_name(uint i) {
- assert(i >= 0 && i <= _max_num_q * number_of_subclasses_of_ref(),
+ assert(i <= _max_num_q * number_of_subclasses_of_ref(),
"Out of bounds index");
int j = i / _max_num_q;
--- a/hotspot/src/share/vm/oops/constantPool.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/oops/constantPool.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1790,17 +1790,10 @@
void ConstantPool::set_on_stack(const bool value) {
if (value) {
- int old_flags = *const_cast<volatile int *>(&_flags);
- while ((old_flags & _on_stack) == 0) {
- int new_flags = old_flags | _on_stack;
- int result = Atomic::cmpxchg(new_flags, &_flags, old_flags);
-
- if (result == old_flags) {
- // Succeeded.
- MetadataOnStackMark::record(this, Thread::current());
- return;
- }
- old_flags = result;
+ // Only record if it's not already set.
+ if (!on_stack()) {
+ _flags |= _on_stack;
+ MetadataOnStackMark::record(this);
}
} else {
// Clearing is done single-threadedly.
--- a/hotspot/src/share/vm/oops/instanceKlass.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/oops/instanceKlass.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -3492,9 +3492,11 @@
#endif
+
// RedefineClasses() support for previous versions:
-
-// Purge previous versions
+int InstanceKlass::_previous_version_count = 0;
+
+// Purge previous versions before adding new previous versions of the class.
void InstanceKlass::purge_previous_versions(InstanceKlass* ik) {
if (ik->previous_versions() != NULL) {
// This klass has previous versions so see what we can cleanup
@@ -3524,6 +3526,11 @@
// are executing. Unlink this previous_version.
// The previous version InstanceKlass is on the ClassLoaderData deallocate list
// so will be deallocated during the next phase of class unloading.
+ RC_TRACE(0x00000200, ("purge: previous version " INTPTR_FORMAT " is dead",
+ pv_node));
+ // For debugging purposes.
+ pv_node->set_is_scratch_class();
+ pv_node->class_loader_data()->add_to_deallocate_list(pv_node);
pv_node = pv_node->previous_versions();
last->link_previous_versions(pv_node);
deleted_count++;
@@ -3537,7 +3544,7 @@
live_count++;
}
- // At least one method is live in this previous version so clean its MethodData.
+ // At least one method is live in this previous version.
// Reset dead EMCP methods not to get breakpoints.
// All methods are deallocated when all of the methods for this class are no
// longer running.
@@ -3561,12 +3568,6 @@
("purge: %s(%s): prev method @%d in version @%d is alive",
method->name()->as_C_string(),
method->signature()->as_C_string(), j, version));
-#ifdef ASSERT
- if (method->method_data() != NULL) {
- // Verify MethodData for running methods don't refer to old methods.
- method->method_data()->verify_clean_weak_method_links();
- }
-#endif // ASSERT
}
}
}
@@ -3579,18 +3580,6 @@
("purge: previous version stats: live=%d, deleted=%d", live_count,
deleted_count));
}
-
-#ifdef ASSERT
- // Verify clean MethodData for this class's methods, e.g. they don't refer to
- // old methods that are no longer running.
- Array<Method*>* methods = ik->methods();
- int num_methods = methods->length();
- for (int index = 0; index < num_methods; ++index) {
- if (methods->at(index)->method_data() != NULL) {
- methods->at(index)->method_data()->verify_clean_weak_method_links();
- }
- }
-#endif // ASSERT
}
void InstanceKlass::mark_newly_obsolete_methods(Array<Method*>* old_methods,
@@ -3677,6 +3666,11 @@
ConstantPool* cp_ref = scratch_class->constants();
if (!cp_ref->on_stack()) {
RC_TRACE(0x00000400, ("add: scratch class not added; no methods are running"));
+ // For debugging purposes.
+ scratch_class->set_is_scratch_class();
+ scratch_class->class_loader_data()->add_to_deallocate_list(scratch_class());
+ // Update count for class unloading.
+ _previous_version_count--;
return;
}
@@ -3688,8 +3682,8 @@
// if EMCP method (not obsolete) is on the stack, mark as EMCP so that
// we can add breakpoints for it.
- // We set the method->on_stack bit during safepoints for class redefinition and
- // class unloading and use this bit to set the is_running_emcp bit.
+ // We set the method->on_stack bit during safepoints for class redefinition
+ // and use this bit to set the is_running_emcp bit.
// After the safepoint, the on_stack bit is cleared and the running emcp
// method may exit. If so, we would set a breakpoint in a method that
// is never reached, but this won't be noticeable to the programmer.
@@ -3708,6 +3702,8 @@
assert(scratch_class->previous_versions() == NULL, "shouldn't have a previous version");
scratch_class->link_previous_versions(previous_versions());
link_previous_versions(scratch_class());
+ // Update count for class unloading.
+ _previous_version_count++;
} // end add_previous_version()
--- a/hotspot/src/share/vm/oops/instanceKlass.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/oops/instanceKlass.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -206,7 +206,8 @@
_misc_is_contended = 1 << 4, // marked with contended annotation
_misc_has_default_methods = 1 << 5, // class/superclass/implemented interfaces has default methods
_misc_declares_default_methods = 1 << 6, // directly declares default methods (any access)
- _misc_has_been_redefined = 1 << 7 // class has been redefined
+ _misc_has_been_redefined = 1 << 7, // class has been redefined
+ _misc_is_scratch_class = 1 << 8 // class is the redefined scratch class
};
u2 _misc_flags;
u2 _minor_version; // minor version number of class file
@@ -626,11 +627,23 @@
_misc_flags |= _misc_has_been_redefined;
}
+ bool is_scratch_class() const {
+ return (_misc_flags & _misc_is_scratch_class) != 0;
+ }
+
+ void set_is_scratch_class() {
+ _misc_flags |= _misc_is_scratch_class;
+ }
+
void init_previous_versions() {
_previous_versions = NULL;
}
+ private:
+ static int _previous_version_count;
+ public:
static void purge_previous_versions(InstanceKlass* ik);
+ static bool has_previous_versions() { return _previous_version_count > 0; }
// JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation
void set_cached_class_file(JvmtiCachedClassFileData *data) {
--- a/hotspot/src/share/vm/oops/method.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/oops/method.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1970,9 +1970,10 @@
// on stack means some method referring to it is also on the stack.
constants()->set_on_stack(value);
- bool succeeded = _access_flags.set_on_stack(value);
- if (value && succeeded) {
- MetadataOnStackMark::record(this, Thread::current());
+ bool already_set = on_stack();
+ _access_flags.set_on_stack(value);
+ if (value && !already_set) {
+ MetadataOnStackMark::record(this);
}
}
--- a/hotspot/src/share/vm/opto/bytecodeInfo.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/opto/bytecodeInfo.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -33,6 +33,7 @@
#include "opto/callGenerator.hpp"
#include "opto/parse.hpp"
#include "runtime/handles.inline.hpp"
+#include "utilities/events.hpp"
//=============================================================================
//------------------------------InlineTree-------------------------------------
@@ -490,7 +491,7 @@
//------------------------------print_inlining---------------------------------
void InlineTree::print_inlining(ciMethod* callee_method, int caller_bci,
- bool success) const {
+ ciMethod* caller_method, bool success) const {
const char* inline_msg = msg();
assert(inline_msg != NULL, "just checking");
if (C->log() != NULL) {
@@ -509,6 +510,18 @@
//tty->print(" bcs: %d+%d invoked: %d", top->count_inline_bcs(), callee_method->code_size(), callee_method->interpreter_invocation_count());
}
}
+#if INCLUDE_TRACE
+ EventCompilerInlining event;
+ if (event.should_commit()) {
+ event.set_compileID(C->compile_id());
+ event.set_message(inline_msg);
+ event.set_succeeded(success);
+ event.set_bci(caller_bci);
+ event.set_caller(caller_method->get_Method());
+ event.set_callee(callee_method->to_trace_struct());
+ event.commit();
+ }
+#endif // INCLUDE_TRACE
}
//------------------------------ok_to_inline-----------------------------------
@@ -531,14 +544,14 @@
// Do some initial checks.
if (!pass_initial_checks(caller_method, caller_bci, callee_method)) {
set_msg("failed initial checks");
- print_inlining(callee_method, caller_bci, false /* !success */);
+ print_inlining(callee_method, caller_bci, caller_method, false /* !success */);
return NULL;
}
// Do some parse checks.
set_msg(check_can_parse(callee_method));
if (msg() != NULL) {
- print_inlining(callee_method, caller_bci, false /* !success */);
+ print_inlining(callee_method, caller_bci, caller_method, false /* !success */);
return NULL;
}
@@ -580,10 +593,11 @@
if (msg() == NULL) {
set_msg("inline (hot)");
}
- print_inlining(callee_method, caller_bci, true /* success */);
+ print_inlining(callee_method, caller_bci, caller_method, true /* success */);
build_inline_tree_for_callee(callee_method, jvms, caller_bci);
- if (InlineWarmCalls && !wci.is_hot())
+ if (InlineWarmCalls && !wci.is_hot()) {
return new (C) WarmCallInfo(wci); // copy to heap
+ }
return WarmCallInfo::always_hot();
}
@@ -591,7 +605,7 @@
if (msg() == NULL) {
set_msg("too cold to inline");
}
- print_inlining(callee_method, caller_bci, false /* !success */ );
+ print_inlining(callee_method, caller_bci, caller_method, false /* !success */ );
return NULL;
}
--- a/hotspot/src/share/vm/opto/chaitin.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/opto/chaitin.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -602,7 +602,7 @@
// This frame must preserve the required fp alignment
_framesize = round_to(_framesize, Matcher::stack_alignment_in_slots());
- assert( _framesize >= 0 && _framesize <= 1000000, "sanity check" );
+ assert(_framesize <= 1000000, "sanity check");
#ifndef PRODUCT
_total_framesize += _framesize;
if ((int)_framesize > _max_framesize) {
--- a/hotspot/src/share/vm/opto/graphKit.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/opto/graphKit.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -3027,12 +3027,7 @@
// We may not have profiling here or it may not help us. If we have
// a speculative type use it to perform an exact cast.
ciKlass* spec_obj_type = obj_type->speculative_type();
- if (spec_obj_type != NULL ||
- (data != NULL &&
- // Counter has never been decremented (due to cast failure).
- // ...This is a reasonable thing to expect. It is true of
- // all casts inserted by javac to implement generic types.
- data->as_CounterData()->count() >= 0)) {
+ if (spec_obj_type != NULL || data != NULL) {
cast_obj = maybe_cast_profiled_receiver(not_null_obj, tk->klass(), spec_obj_type, safe_for_replace);
if (cast_obj != NULL) {
if (failure_control != NULL) // failure is now impossible
--- a/hotspot/src/share/vm/opto/parse.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/opto/parse.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -87,7 +87,7 @@
JVMState* jvms,
WarmCallInfo* wci_result);
void print_inlining(ciMethod* callee_method, int caller_bci,
- bool success) const;
+ ciMethod* caller_method, bool success) const;
InlineTree* caller_tree() const { return _caller_tree; }
InlineTree* callee_at(int bci, ciMethod* m) const;
--- a/hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -142,14 +142,11 @@
for (int i = 0; i < _class_count; i++) {
redefine_single_class(_class_defs[i].klass, _scratch_classes[i], thread);
- ClassLoaderData* cld = _scratch_classes[i]->class_loader_data();
- // Free the memory for this class at class unloading time. Not before
- // because CMS might think this is still live.
- cld->add_to_deallocate_list((InstanceKlass*)_scratch_classes[i]);
- _scratch_classes[i] = NULL;
}
// Clean out MethodData pointing to old Method*
+ // Have to do this after all classes are redefined and all methods that
+ // are redefined are marked as old.
MethodDataCleaner clean_weak_method_links;
ClassLoaderDataGraph::classes_do(&clean_weak_method_links);
@@ -2902,18 +2899,13 @@
// }
assert(stackmap_p + 1 <= stackmap_end, "no room for frame_type");
- // The Linux compiler does not like frame_type to be u1 or u2. It
- // issues the following warning for the first if-statement below:
- //
- // "warning: comparison is always true due to limited range of data type"
- //
- u4 frame_type = *stackmap_p;
+ u1 frame_type = *stackmap_p;
stackmap_p++;
// same_frame {
// u1 frame_type = SAME; /* 0-63 */
// }
- if (frame_type >= 0 && frame_type <= 63) {
+ if (frame_type <= 63) {
// nothing more to do for same_frame
}
--- a/hotspot/src/share/vm/prims/whitebox.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/prims/whitebox.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -364,10 +364,6 @@
os::release_memory((char *)(uintptr_t)addr, size);
WB_END
-WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env))
- return MemTracker::tracking_level() == NMT_detail;
-WB_END
-
WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env))
// Test that we can downgrade NMT levels but not upgrade them.
if (MemTracker::tracking_level() == NMT_off) {
@@ -1321,7 +1317,6 @@
{CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory },
{CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory },
{CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory },
- {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported},
{CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel},
{CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize },
#endif // INCLUDE_NMT
--- a/hotspot/src/share/vm/runtime/frame.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/frame.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -194,7 +194,6 @@
public:
// Link (i.e., the pointer to the previous frame)
intptr_t* link() const;
- void set_link(intptr_t* addr);
// Return address
address sender_pc() const;
--- a/hotspot/src/share/vm/runtime/globals.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/globals.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -921,6 +921,9 @@
"If > 0, provokes an error inside VM error handler (a secondary " \
"crash). see test_error_handler() in debug.cpp.") \
\
+ notproduct(bool, TestSafeFetchInErrorHandler, false, \
+ "If true, tests SafeFetch inside error handler.") \
+ \
develop(bool, Verbose, false, \
"Print additional debugging information from other modes") \
\
--- a/hotspot/src/share/vm/runtime/stubRoutines.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/stubRoutines.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -210,8 +210,36 @@
assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
}
}
+
+// simple test for SafeFetch32
+static void test_safefetch32() {
+ int dummy = 17;
+ int* const p_invalid = (int*) get_segfault_address();
+ int* const p_valid = &dummy;
+ int result_invalid = SafeFetch32(p_invalid, 0xABC);
+ assert(result_invalid == 0xABC, "SafeFetch32 error");
+ int result_valid = SafeFetch32(p_valid, 0xABC);
+ assert(result_valid == 17, "SafeFetch32 error");
+}
+
+// simple test for SafeFetchN
+static void test_safefetchN() {
+#ifdef _LP64
+ const intptr_t v1 = UCONST64(0xABCD00000000ABCD);
+ const intptr_t v2 = UCONST64(0xDEFD00000000DEFD);
+#else
+ const intptr_t v1 = 0xABCDABCD;
+ const intptr_t v2 = 0xDEFDDEFD;
#endif
-
+ intptr_t dummy = v1;
+ intptr_t* const p_invalid = (intptr_t*) get_segfault_address();
+ intptr_t* const p_valid = &dummy;
+ intptr_t result_invalid = SafeFetchN(p_invalid, v2);
+ assert(result_invalid == v2, "SafeFetchN error");
+ intptr_t result_valid = SafeFetchN(p_valid, v2);
+ assert(result_valid == v1, "SafeFetchN error");
+}
+#endif
void StubRoutines::initialize2() {
if (_code2 == NULL) {
@@ -300,6 +328,13 @@
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong));
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong));
+ // test safefetch routines
+ // Not on Windows 32bit until 8074860 is fixed
+#if ! (defined(_WIN32) && defined(_M_IX86))
+ test_safefetch32();
+ test_safefetchN();
+#endif
+
#endif
}
--- a/hotspot/src/share/vm/runtime/stubRoutines.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/stubRoutines.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -448,4 +448,9 @@
return StubRoutines::SafeFetchN_stub()(adr, errValue);
}
+
+// returns true if SafeFetch32 and SafeFetchN can be used safely (stubroutines are already generated)
+inline bool CanUseSafeFetch32() { return StubRoutines::SafeFetch32_stub() ? true : false; }
+inline bool CanUseSafeFetchN() { return StubRoutines::SafeFetchN_stub() ? true : false; }
+
#endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP
--- a/hotspot/src/share/vm/runtime/thread.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/thread.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -203,8 +203,6 @@
// This initial value ==> never claimed.
_oops_do_parity = 0;
- _metadata_on_stack_buffer = NULL;
-
// the handle mark links itself to last_handle_mark
new HandleMark(this);
@@ -776,7 +774,8 @@
// no nmethods in a generic thread...
}
-void Thread::metadata_do(void f(Metadata*)) {
+void Thread::metadata_handles_do(void f(Metadata*)) {
+ // Only walk the Handles in Thread.
if (metadata_handles() != NULL) {
for (int i = 0; i< metadata_handles()->length(); i++) {
f(metadata_handles()->at(i));
@@ -2713,7 +2712,6 @@
}
void JavaThread::metadata_do(void f(Metadata*)) {
- Thread::metadata_do(f);
if (has_last_Java_frame()) {
// Traverse the execution stack to call f() on the methods in the stack
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) {
@@ -4104,6 +4102,21 @@
}
}
+class ThreadHandlesClosure : public ThreadClosure {
+ void (*_f)(Metadata*);
+ public:
+ ThreadHandlesClosure(void f(Metadata*)) : _f(f) {}
+ virtual void do_thread(Thread* thread) {
+ thread->metadata_handles_do(_f);
+ }
+};
+
+void Threads::metadata_handles_do(void f(Metadata*)) {
+ // Only walk the Handles in Thread.
+ ThreadHandlesClosure handles_closure(f);
+ threads_do(&handles_closure);
+}
+
void Threads::deoptimized_wrt_marked_nmethods() {
ALL_JAVA_THREADS(p) {
p->deoptimized_wrt_marked_nmethods();
--- a/hotspot/src/share/vm/runtime/thread.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/thread.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -255,9 +255,6 @@
jlong _allocated_bytes; // Cumulative number of bytes allocated on
// the Java heap
- // Thread-local buffer used by MetadataOnStackMark.
- MetadataOnStackBuffer* _metadata_on_stack_buffer;
-
TRACE_DATA _trace_data; // Thread-local data for tracing
ThreadExt _ext;
@@ -478,7 +475,7 @@
void nmethods_do(CodeBlobClosure* cf);
// jvmtiRedefineClasses support
- void metadata_do(void f(Metadata*));
+ void metadata_handles_do(void f(Metadata*));
// Used by fast lock support
virtual bool is_lock_owned(address adr) const;
@@ -494,9 +491,6 @@
// creation fails due to lack of memory, too many threads etc.
bool set_as_starting_thread();
- void set_metadata_on_stack_buffer(MetadataOnStackBuffer* buffer) { _metadata_on_stack_buffer = buffer; }
- MetadataOnStackBuffer* metadata_on_stack_buffer() const { return _metadata_on_stack_buffer; }
-
protected:
// OS data associated with the thread
OSThread* _osthread; // Platform-specific thread information
@@ -1915,6 +1909,7 @@
// RedefineClasses support
static void metadata_do(void f(Metadata*));
+ static void metadata_handles_do(void f(Metadata*));
#ifdef ASSERT
static bool is_vm_complete() { return _vm_complete; }
--- a/hotspot/src/share/vm/runtime/virtualspace.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/virtualspace.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -519,12 +519,13 @@
// Calc address range within we try to attach (range of possible start addresses).
char *const highest_start = (char *)align_ptr_down(zerobased_max - size, attach_point_alignment);
- // SS10 and SS12u1 cannot compile "(char *)UnscaledOopHeapMax - size" on solaris sparc 32-bit:
- // "Cannot use int to initialize char*." Introduce aux variable.
- char *unscaled_end = (char *)UnscaledOopHeapMax;
- unscaled_end -= size;
- char *lowest_start = (size < UnscaledOopHeapMax) ?
- MAX2(unscaled_end, aligned_heap_base_min_address) : aligned_heap_base_min_address;
+ // Need to be careful about size being guaranteed to be less
+ // than UnscaledOopHeapMax due to type constraints.
+ char *lowest_start = aligned_heap_base_min_address;
+ uint64_t unscaled_end = UnscaledOopHeapMax - size;
+ if (unscaled_end < UnscaledOopHeapMax) { // unscaled_end wrapped if size is large
+ lowest_start = MAX2(lowest_start, (char*)unscaled_end);
+ }
lowest_start = (char *)align_ptr_up(lowest_start, attach_point_alignment);
try_reserve_range(highest_start, lowest_start, attach_point_alignment,
aligned_heap_base_min_address, zerobased_max, size, alignment, large);
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -2584,7 +2584,6 @@
/**********************/ \
/* frame */ \
/**********************/ \
- NOT_ZERO(PPC64_ONLY(declare_constant(frame::abi_minframe_size))) \
NOT_ZERO(PPC64_ONLY(declare_constant(frame::entry_frame_locals_size))) \
\
NOT_ZERO(X86_ONLY(declare_constant(frame::entry_frame_call_wrapper_offset))) \
--- a/hotspot/src/share/vm/services/memTracker.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/services/memTracker.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -53,11 +53,7 @@
if (strcmp(nmt_option, "summary") == 0) {
level = NMT_summary;
} else if (strcmp(nmt_option, "detail") == 0) {
-#if PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
level = NMT_detail;
-#else
- level = NMT_summary;
-#endif // PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
} else if (strcmp(nmt_option, "off") != 0) {
// The option value is invalid
_is_nmt_env_valid = false;
@@ -95,17 +91,9 @@
bool MemTracker::check_launcher_nmt_support(const char* value) {
if (strcmp(value, "=detail") == 0) {
-#if !PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
- jio_fprintf(defaultStream::error_stream(),
- "NMT detail is not supported on this platform. Using NMT summary instead.\n");
- if (MemTracker::tracking_level() != NMT_summary) {
- return false;
- }
-#else
if (MemTracker::tracking_level() != NMT_detail) {
return false;
}
-#endif
} else if (strcmp(value, "=summary") == 0) {
if (MemTracker::tracking_level() != NMT_summary) {
return false;
--- a/hotspot/src/share/vm/trace/trace.xml Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/trace/trace.xml Thu Mar 19 15:00:51 2015 -0700
@@ -400,6 +400,22 @@
<value type="UINT" field="compileID" label="Compilation ID" relation="COMP_ID"/>
</event>
+ <struct id="CiMethod">
+ <value type="UTF8" field="class" label="Class name"/>
+ <value type="UTF8" field="name" label="Method name"/>
+ <value type="UTF8" field="signature" label="Method signature"/>
+ </struct>
+
+ <event id="CompilerInlining" path="vm/compiler/optimization/inlining" label="Method Inlining"
+ has_thread="true" is_instant="true">
+ <value type="UINT" field="compileID" label="Compilation ID" relation="COMP_ID"/>
+ <value type="METHOD" field="caller" label="Caller Method"/>
+ <structvalue type="CiMethod" field="callee" label="Callee Method"/>
+ <value type="BOOLEAN" field="succeeded" label="Succeeded"/>
+ <value type="UTF8" field="message" label="Message"/>
+ <value type="INTEGER" field="bci" label="Byte Code Index"/>
+ </event>
+
<!-- Code sweeper events -->
<event id="SweepCodeCache" path="vm/code_sweeper/sweep" label="Sweep Code Cache"
--- a/hotspot/src/share/vm/utilities/accessFlags.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/accessFlags.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -47,20 +47,6 @@
} while(f != old_flags);
}
-// Returns true iff this thread succeeded setting the bit.
-bool AccessFlags::atomic_set_one_bit(jint bit) {
- // Atomically update the flags with the bit given
- jint old_flags, new_flags, f;
- bool is_setting_bit = false;
- do {
- old_flags = _flags;
- new_flags = old_flags | bit;
- is_setting_bit = old_flags != new_flags;
- f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
- } while(f != old_flags);
-
- return is_setting_bit;
-}
#if !defined(PRODUCT) || INCLUDE_JVMTI
--- a/hotspot/src/share/vm/utilities/accessFlags.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/accessFlags.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -172,7 +172,6 @@
// Atomic update of flags
void atomic_set_bits(jint bits);
- bool atomic_set_one_bit(jint bit);
void atomic_clear_bits(jint bits);
private:
@@ -234,13 +233,12 @@
atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE);
}
- bool set_on_stack(const bool value)
+ void set_on_stack(const bool value)
{
if (value) {
- return atomic_set_one_bit(JVM_ACC_ON_STACK);
+ atomic_set_bits(JVM_ACC_ON_STACK);
} else {
atomic_clear_bits(JVM_ACC_ON_STACK);
- return true; // Ignored
}
}
// Conversion
--- a/hotspot/src/share/vm/utilities/bitMap.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/bitMap.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -33,7 +33,6 @@
_map(map), _size(size_in_bits), _map_allocator(false)
{
assert(sizeof(bm_word_t) == BytesPerWord, "Implementation assumption.");
- assert(size_in_bits >= 0, "just checking");
}
@@ -45,7 +44,6 @@
}
void BitMap::resize(idx_t size_in_bits, bool in_resource_area) {
- assert(size_in_bits >= 0, "just checking");
idx_t old_size_in_words = size_in_words();
bm_word_t* old_map = map();
--- a/hotspot/src/share/vm/utilities/globalDefinitions.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/globalDefinitions.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -446,15 +446,6 @@
# include "globalDefinitions_aarch64.hpp"
#endif
-/*
- * If a platform does not support native stack walking
- * the platform specific globalDefinitions (above)
- * can set PLATFORM_NATIVE_STACK_WALKING_SUPPORTED to 0
- */
-#ifndef PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
-#define PLATFORM_NATIVE_STACK_WALKING_SUPPORTED 1
-#endif
-
// To assure the IRIW property on processors that are not multiple copy
// atomic, sync instructions must be issued between volatile reads to
// assure their ordering, instead of after volatile stores.
--- a/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -44,14 +44,6 @@
#endif // SOLARIS
#include <math.h>
-#ifndef FP_PZERO
-// Linux doesn't have positive/negative zero
-#define FP_PZERO FP_ZERO
-#endif
-#if (!defined fpclass) && ((!defined SPARC) || (!defined SOLARIS))
-#define fpclass fpclassify
-#endif
-
#include <time.h>
#include <fcntl.h>
#include <dlfcn.h>
--- a/hotspot/src/share/vm/utilities/globalDefinitions_sparcWorks.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/globalDefinitions_sparcWorks.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -48,15 +48,6 @@
# include <ieeefp.h>
#endif
# include <math.h>
-#ifdef LINUX
-#ifndef FP_PZERO
- // Linux doesn't have positive/negative zero
- #define FP_PZERO FP_ZERO
-#endif
-#ifndef fpclass
- #define fpclass fpclassify
-#endif
-#endif
# include <time.h>
# include <fcntl.h>
# include <dlfcn.h>
--- a/hotspot/src/share/vm/utilities/globalDefinitions_xlc.hpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/globalDefinitions_xlc.hpp Thu Mar 19 15:00:51 2015 -0700
@@ -41,14 +41,6 @@
#include <wchar.h>
#include <math.h>
-#ifndef FP_PZERO
-// Linux doesn't have positive/negative zero
-#define FP_PZERO FP_ZERO
-#endif
-#if (!defined fpclass)
-#define fpclass fpclassify
-#endif
-
#include <time.h>
#include <fcntl.h>
#include <dlfcn.h>
--- a/hotspot/src/share/vm/utilities/nativeCallStack.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/nativeCallStack.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -32,10 +32,6 @@
NativeCallStack::NativeCallStack(int toSkip, bool fillStack) :
_hash_value(0) {
-#if !PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
- fillStack = false;
-#endif
-
if (fillStack) {
os::get_native_stack(_stack, NMT_TrackingStackDepth, toSkip);
} else {
@@ -95,11 +91,7 @@
int offset;
if (is_empty()) {
for (int index = 0; index < indent; index ++) out->print(" ");
-#if PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
out->print("[BOOTSTRAP]");
-#else
- out->print("[No stack]");
-#endif
} else {
for (int frame = 0; frame < NMT_TrackingStackDepth; frame ++) {
pc = get_frame(frame);
--- a/hotspot/src/share/vm/utilities/vmError.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/vmError.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -358,18 +358,38 @@
// test secondary error handling. Test it twice, to test that resetting
// error handler after a secondary crash works.
- STEP(13, "(test secondary crash 1)")
+ STEP(11, "(test secondary crash 1)")
+ if (_verbose && TestCrashInErrorHandler != 0) {
+ st->print_cr("Will crash now (TestCrashInErrorHandler=%d)...",
+ TestCrashInErrorHandler);
+ controlled_crash(TestCrashInErrorHandler);
+ }
+
+ STEP(12, "(test secondary crash 2)")
if (_verbose && TestCrashInErrorHandler != 0) {
st->print_cr("Will crash now (TestCrashInErrorHandler=%d)...",
TestCrashInErrorHandler);
controlled_crash(TestCrashInErrorHandler);
}
- STEP(14, "(test secondary crash 2)")
- if (_verbose && TestCrashInErrorHandler != 0) {
- st->print_cr("Will crash now (TestCrashInErrorHandler=%d)...",
- TestCrashInErrorHandler);
- controlled_crash(TestCrashInErrorHandler);
+ STEP(13, "(test safefetch in error handler)")
+ // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice
+ // to test that resetting the signal handler works correctly.
+ if (_verbose && TestSafeFetchInErrorHandler) {
+ st->print_cr("Will test SafeFetch...");
+ if (CanUseSafeFetch32()) {
+ int* const invalid_pointer = (int*) get_segfault_address();
+ const int x = 0x76543210;
+ int i1 = SafeFetch32(invalid_pointer, x);
+ int i2 = SafeFetch32(invalid_pointer, x);
+ if (i1 == x && i2 == x) {
+ st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern
+ } else {
+ st->print_cr("??");
+ }
+ } else {
+ st->print_cr("not possible; skipped.");
+ }
}
#endif // PRODUCT
--- a/hotspot/src/share/vm/utilities/workgroup.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/workgroup.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -124,7 +124,7 @@
// Array index bounds checking.
GangWorker* result = NULL;
assert(gang_workers() != NULL, "No workers for indexing");
- assert(((i >= 0) && (i < total_workers())), "Worker index out of bounds");
+ assert(i < total_workers(), "Worker index out of bounds");
result = _gang_workers[i];
assert(result != NULL, "Indexing to null worker");
return result;
@@ -463,7 +463,7 @@
}
bool SubTasksDone::is_task_claimed(uint t) {
- assert(0 <= t && t < _n_tasks, "bad task id.");
+ assert(t < _n_tasks, "bad task id.");
uint old = _tasks[t];
if (old == 0) {
old = Atomic::cmpxchg(1, &_tasks[t], 0);
--- a/hotspot/src/share/vm/utilities/yieldingWorkgroup.cpp Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/src/share/vm/utilities/yieldingWorkgroup.cpp Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -120,7 +120,6 @@
_sequence_number++;
uint requested_size = new_task->requested_size();
- assert(requested_size >= 0, "Should be non-negative");
if (requested_size != 0) {
_active_workers = MIN2(requested_size, total_workers());
} else {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/loopopts/ConstFPVectorization.java Thu Mar 19 15:00:51 2015 -0700
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 8074869
+ * @summary C2 code generator can replace -0.0f with +0.0f on Linux
+ * @run main ConstFPVectorization 8
+ * @author volker.simonis@gmail.com
+ *
+ */
+
+public class ConstFPVectorization {
+
+ static float[] f = new float[16];
+ static double[] d = new double[16];
+
+ static void floatLoop(int count) {
+ for (int i = 0; i < count; i++) {
+ f[i] = -0.0f;
+ }
+ }
+
+ static void doubleLoop(int count) {
+ for (int i = 0; i < count; i++) {
+ d[i] = -0.0d;
+ }
+ }
+
+ public static void main(String args[]) {
+ for (int i = 0; i < 10_000; i++) {
+ floatLoop(Integer.parseInt(args[0]));
+ doubleLoop(Integer.parseInt(args[0]));
+ }
+ for (int i = 0; i < Integer.parseInt(args[0]); i++) {
+ if (Float.floatToRawIntBits(f[i]) != Float.floatToRawIntBits(-0.0f))
+ throw new Error("Float error at index " + i);
+ if (Double.doubleToRawLongBits(d[i]) != Double.doubleToRawLongBits(-0.0d))
+ throw new Error("Double error at index " + i);
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/ErrorHandling/SafeFetchInErrorHandlingTest.java Thu Mar 19 15:00:51 2015 -0700
@@ -0,0 +1,92 @@
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+import java.util.regex.Pattern;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.ProcessTools;
+
+/*
+ * @test
+ * @bug 8074552
+ * @summary SafeFetch32 and SafeFetchN do not work in error handling
+ * @library /testlibrary
+ * @author Thomas Stuefe (SAP)
+ */
+
+public class SafeFetchInErrorHandlingTest {
+
+
+ public static void main(String[] args) throws Exception {
+
+ if (!Platform.isDebugBuild()) {
+ return;
+ }
+
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-Xmx100M",
+ "-XX:ErrorHandlerTest=14",
+ "-XX:+TestSafeFetchInErrorHandler",
+ "-version");
+
+ OutputAnalyzer output_detail = new OutputAnalyzer(pb.start());
+
+ // we should have crashed with a SIGSEGV
+ output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*");
+ output_detail.shouldMatch("# +(?:SIGSEGV|EXCEPTION_ACCESS_VIOLATION).*");
+
+ // extract hs-err file
+ String hs_err_file = output_detail.firstMatch("# *(\\S*hs_err_pid\\d+\\.log)", 1);
+ if (hs_err_file == null) {
+ throw new RuntimeException("Did not find hs-err file in output.\n");
+ }
+
+ File f = new File(hs_err_file);
+ if (!f.exists()) {
+ throw new RuntimeException("hs-err file missing at "
+ + f.getAbsolutePath() + ".\n");
+ }
+
+ System.out.println("Found hs_err file. Scanning...");
+
+ FileInputStream fis = new FileInputStream(f);
+ BufferedReader br = new BufferedReader(new InputStreamReader(fis));
+ String line = null;
+
+ Pattern [] pattern = new Pattern[] {
+ Pattern.compile("Will test SafeFetch..."),
+ Pattern.compile("SafeFetch OK."),
+ };
+ int currentPattern = 0;
+
+ String lastLine = null;
+ while ((line = br.readLine()) != null) {
+ if (currentPattern < pattern.length) {
+ if (pattern[currentPattern].matcher(line).matches()) {
+ System.out.println("Found: " + line + ".");
+ currentPattern ++;
+ }
+ }
+ lastLine = line;
+ }
+ br.close();
+
+ if (currentPattern < pattern.length) {
+ throw new RuntimeException("hs-err file incomplete (first missing pattern: " + currentPattern + ")");
+ }
+
+ if (!lastLine.equals("END.")) {
+ throw new RuntimeException("hs-err file incomplete (missing END marker.)");
+ } else {
+ System.out.println("End marker found.");
+ }
+
+ System.out.println("OK.");
+
+ }
+
+}
+
--- a/hotspot/test/runtime/NMT/ChangeTrackingLevel.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/test/runtime/NMT/ChangeTrackingLevel.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -27,7 +27,6 @@
* @summary Test that you can decrease NMT tracking level but not increase it.
* @key nmt
* @library /testlibrary /../../test/lib
- * @ignore 8067167
* @build ChangeTrackingLevel
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
--- a/hotspot/test/runtime/NMT/PrintNMTStatistics.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/test/runtime/NMT/PrintNMTStatistics.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -27,7 +27,6 @@
* @bug 8005936 8058606
* @summary Verify PrintNMTStatistics on normal JVM exit for detail and summary tracking level
* @library /testlibrary
- * @ignore 8067167
*/
import com.oracle.java.testlibrary.*;
--- a/hotspot/test/runtime/NMT/ThreadedVirtualAllocTestType.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/test/runtime/NMT/ThreadedVirtualAllocTestType.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -46,13 +46,6 @@
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
- boolean has_nmt_detail = wb.NMTIsDetailSupported();
- if (has_nmt_detail) {
- System.out.println("NMT detail support detected.");
- } else {
- System.out.println("NMT detail support not detected.");
- }
-
Thread reserveThread = new Thread() {
public void run() {
addr = wb.NMTReserveMemory(reserveSize);
@@ -64,9 +57,7 @@
pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=512KB, committed=0KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");
Thread commitThread = new Thread() {
public void run() {
@@ -78,9 +69,7 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=512KB, committed=128KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
Thread uncommitThread = new Thread() {
public void run() {
@@ -107,4 +96,4 @@
output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
}
- }
+}
--- a/hotspot/test/runtime/NMT/VirtualAllocCommitUncommitRecommit.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/test/runtime/NMT/VirtualAllocCommitUncommitRecommit.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -49,13 +49,6 @@
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
- boolean has_nmt_detail = wb.NMTIsDetailSupported();
- if (has_nmt_detail) {
- System.out.println("NMT detail support detected.");
- } else {
- System.out.println("NMT detail support not detected.");
- }
-
// reserve
addr = wb.NMTReserveMemory(reserveSize);
pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
@@ -63,11 +56,9 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=0KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
long addrA = addr;
long addrB = addr + commitSize;
@@ -85,11 +76,9 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=512KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// uncommit BC
wb.NMTUncommitMemory(addrB, commitSize);
wb.NMTUncommitMemory(addrC, commitSize);
@@ -97,11 +86,9 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=256KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// commit EF
wb.NMTCommitMemory(addrE, commitSize);
@@ -109,22 +96,18 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=512KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// uncommit A
wb.NMTUncommitMemory(addrA, commitSize);
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=384KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// commit ABC
wb.NMTCommitMemory(addrA, commitSize);
@@ -133,11 +116,9 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=768KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// uncommit ABCDEF
wb.NMTUncommitMemory(addrA, commitSize);
@@ -149,11 +130,9 @@
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=4096KB, committed=0KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
- + Long.toHexString(addr + reserveSize)
- + "\\] reserved 4096KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 4096KB for Test");
// release
wb.NMTReleaseMemory(addr, reserveSize);
--- a/hotspot/test/runtime/NMT/VirtualAllocTestType.java Tue Mar 17 14:03:05 2015 +0000
+++ b/hotspot/test/runtime/NMT/VirtualAllocTestType.java Thu Mar 19 15:00:51 2015 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -47,30 +47,19 @@
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
- boolean has_nmt_detail = wb.NMTIsDetailSupported();
- if (has_nmt_detail) {
- System.out.println("NMT detail support detected.");
- } else {
- System.out.println("NMT detail support not detected.");
- }
-
addr = wb.NMTReserveMemory(reserveSize);
pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=256KB, committed=0KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test");
wb.NMTCommitMemory(addr, commitSize);
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=256KB, committed=128KB)");
- if (has_nmt_detail) {
- output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
- }
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
wb.NMTUncommitMemory(addr, commitSize);
@@ -85,4 +74,4 @@
output.shouldNotContain("Test (reserved=");
output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
}
- }
+}