author | twisti |
Tue, 16 Aug 2011 04:14:05 -0700 | |
changeset 10265 | 4c869854aebd |
parent 10031 | e81ae8b523dc |
child 10565 | dc90c239f4ec |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "interp_masm_x86_32.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "interpreter/interpreterRuntime.hpp" |
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#include "oops/arrayOop.hpp" |
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#include "oops/markOop.hpp" |
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#include "oops/methodDataOop.hpp" |
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#include "oops/methodOop.hpp" |
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#include "prims/jvmtiExport.hpp" |
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#include "prims/jvmtiRedefineClassesTrace.hpp" |
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#include "prims/jvmtiThreadState.hpp" |
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#include "runtime/basicLock.hpp" |
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#include "runtime/biasedLocking.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#ifdef TARGET_OS_FAMILY_linux |
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# include "thread_linux.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_solaris |
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# include "thread_solaris.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_windows |
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# include "thread_windows.inline.hpp" |
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#endif |
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// Implementation of InterpreterMacroAssembler |
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#ifdef CC_INTERP |
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void InterpreterMacroAssembler::get_method(Register reg) { |
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movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize))); |
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movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method))); |
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} |
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#endif // CC_INTERP |
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#ifndef CC_INTERP |
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void InterpreterMacroAssembler::call_VM_leaf_base( |
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address entry_point, |
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int number_of_arguments |
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) { |
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// interpreter specific |
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// |
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// Note: No need to save/restore bcp & locals (rsi & rdi) pointer |
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// since these are callee saved registers and no blocking/ |
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// GC can happen in leaf calls. |
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// Further Note: DO NOT save/restore bcp/locals. If a caller has |
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// already saved them so that it can use rsi/rdi as temporaries |
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// then a save/restore here will DESTROY the copy the caller |
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// saved! There used to be a save_bcp() that only happened in |
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// the ASSERT path (no restore_bcp). Which caused bizarre failures |
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// when jvm built with ASSERTs. |
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#ifdef ASSERT |
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{ Label L; |
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cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
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jcc(Assembler::equal, L); |
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stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL"); |
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bind(L); |
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} |
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#endif |
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// super call |
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MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments); |
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// interpreter specific |
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// Used to ASSERT that rsi/rdi were equal to frame's bcp/locals |
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// but since they may not have been saved (and we don't want to |
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// save them here (see note above) the assert is invalid. |
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} |
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void InterpreterMacroAssembler::call_VM_base( |
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Register oop_result, |
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Register java_thread, |
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Register last_java_sp, |
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address entry_point, |
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int number_of_arguments, |
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bool check_exceptions |
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) { |
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#ifdef ASSERT |
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{ Label L; |
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cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
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jcc(Assembler::equal, L); |
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stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL"); |
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bind(L); |
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} |
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#endif /* ASSERT */ |
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// interpreter specific |
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// |
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// Note: Could avoid restoring locals ptr (callee saved) - however doesn't |
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// really make a difference for these runtime calls, since they are |
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// slow anyway. Btw., bcp must be saved/restored since it may change |
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// due to GC. |
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assert(java_thread == noreg , "not expecting a precomputed java thread"); |
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save_bcp(); |
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// super call |
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MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions); |
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// interpreter specific |
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restore_bcp(); |
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restore_locals(); |
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} |
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void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) { |
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if (JvmtiExport::can_pop_frame()) { |
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Label L; |
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// Initiate popframe handling only if it is not already being processed. If the flag |
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// has the popframe_processing bit set, it means that this code is called *during* popframe |
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// handling - we don't want to reenter. |
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Register pop_cond = java_thread; // Not clear if any other register is available... |
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movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset())); |
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testl(pop_cond, JavaThread::popframe_pending_bit); |
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jcc(Assembler::zero, L); |
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testl(pop_cond, JavaThread::popframe_processing_bit); |
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jcc(Assembler::notZero, L); |
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// Call Interpreter::remove_activation_preserving_args_entry() to get the |
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// address of the same-named entrypoint in the generated interpreter code. |
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call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry)); |
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jmp(rax); |
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bind(L); |
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get_thread(java_thread); |
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} |
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} |
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void InterpreterMacroAssembler::load_earlyret_value(TosState state) { |
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get_thread(rcx); |
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movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset())); |
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const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset()); |
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const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset()); |
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const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset()); |
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const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset() |
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+ in_ByteSize(wordSize)); |
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switch (state) { |
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case atos: movptr(rax, oop_addr); |
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movptr(oop_addr, NULL_WORD); |
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verify_oop(rax, state); break; |
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case ltos: |
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movl(rdx, val_addr1); // fall through |
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case btos: // fall through |
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case ctos: // fall through |
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case stos: // fall through |
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case itos: movl(rax, val_addr); break; |
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case ftos: fld_s(val_addr); break; |
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case dtos: fld_d(val_addr); break; |
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case vtos: /* nothing to do */ break; |
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default : ShouldNotReachHere(); |
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} |
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// Clean up tos value in the thread object |
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movl(tos_addr, (int32_t) ilgl); |
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movptr(val_addr, NULL_WORD); |
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NOT_LP64(movptr(val_addr1, NULL_WORD)); |
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} |
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void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) { |
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if (JvmtiExport::can_force_early_return()) { |
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Label L; |
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Register tmp = java_thread; |
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movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset())); |
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testptr(tmp, tmp); |
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jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit; |
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// Initiate earlyret handling only if it is not already being processed. |
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// If the flag has the earlyret_processing bit set, it means that this code |
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// is called *during* earlyret handling - we don't want to reenter. |
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movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset())); |
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cmpl(tmp, JvmtiThreadState::earlyret_pending); |
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jcc(Assembler::notEqual, L); |
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// Call Interpreter::remove_activation_early_entry() to get the address of the |
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// same-named entrypoint in the generated interpreter code. |
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get_thread(java_thread); |
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movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset())); |
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pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset())); |
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call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1); |
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jmp(rax); |
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bind(L); |
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get_thread(java_thread); |
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} |
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} |
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void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) { |
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assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode"); |
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movl(reg, Address(rsi, bcp_offset)); |
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bswapl(reg); |
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shrl(reg, 16); |
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} |
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void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, size_t index_size) { |
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assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
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if (index_size == sizeof(u2)) { |
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load_unsigned_short(reg, Address(rsi, bcp_offset)); |
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} else if (index_size == sizeof(u4)) { |
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assert(EnableInvokeDynamic, "giant index used only for JSR 292"); |
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movl(reg, Address(rsi, bcp_offset)); |
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// Check if the secondary index definition is still ~x, otherwise |
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// we have to change the following assembler code to calculate the |
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// plain index. |
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assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); |
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notl(reg); // convert to plain index |
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} else if (index_size == sizeof(u1)) { |
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assert(EnableInvokeDynamic, "tiny index used only for JSR 292"); |
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load_unsigned_byte(reg, Address(rsi, bcp_offset)); |
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} else { |
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ShouldNotReachHere(); |
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} |
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} |
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void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, |
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int bcp_offset, size_t index_size) { |
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assert_different_registers(cache, index); |
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get_cache_index_at_bcp(index, bcp_offset, index_size); |
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movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
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assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
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shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index |
1 | 241 |
} |
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void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache, |
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Register index, |
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Register bytecode, |
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int byte_no, |
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int bcp_offset, |
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size_t index_size) { |
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get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size); |
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movptr(bytecode, Address(cache, index, Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset())); |
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const int shift_count = (1 + byte_no) * BitsPerByte; |
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shrptr(bytecode, shift_count); |
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andptr(bytecode, 0xFF); |
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} |
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void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
5688 | 259 |
int bcp_offset, size_t index_size) { |
1 | 260 |
assert(cache != tmp, "must use different register"); |
5688 | 261 |
get_cache_index_at_bcp(tmp, bcp_offset, index_size); |
1 | 262 |
assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
263 |
// convert from field index to ConstantPoolCacheEntry index |
|
264 |
// and from word offset to byte offset |
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265 |
shll(tmp, 2 + LogBytesPerWord); |
|
1066 | 266 |
movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
1 | 267 |
// skip past the header |
1066 | 268 |
addptr(cache, in_bytes(constantPoolCacheOopDesc::base_offset())); |
269 |
addptr(cache, tmp); // construct pointer to cache entry |
|
1 | 270 |
} |
271 |
||
272 |
||
273 |
// Generate a subtype check: branch to ok_is_subtype if sub_klass is |
|
274 |
// a subtype of super_klass. EAX holds the super_klass. Blows ECX. |
|
275 |
// Resets EDI to locals. Register sub_klass cannot be any of the above. |
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276 |
void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) { |
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277 |
assert( Rsub_klass != rax, "rax, holds superklass" ); |
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assert( Rsub_klass != rcx, "used as a temp" ); |
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assert( Rsub_klass != rdi, "used as a temp, restored from locals" ); |
1 | 280 |
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281 |
// Profile the not-null value's klass. |
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profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi |
1 | 283 |
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// Do the check. |
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check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx |
1 | 286 |
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// Profile the failure of the check. |
1 | 288 |
profile_typecheck_failed(rcx); // blows rcx |
289 |
} |
|
290 |
||
291 |
void InterpreterMacroAssembler::f2ieee() { |
|
292 |
if (IEEEPrecision) { |
|
293 |
fstp_s(Address(rsp, 0)); |
|
294 |
fld_s(Address(rsp, 0)); |
|
295 |
} |
|
296 |
} |
|
297 |
||
298 |
||
299 |
void InterpreterMacroAssembler::d2ieee() { |
|
300 |
if (IEEEPrecision) { |
|
301 |
fstp_d(Address(rsp, 0)); |
|
302 |
fld_d(Address(rsp, 0)); |
|
303 |
} |
|
304 |
} |
|
305 |
||
306 |
// Java Expression Stack |
|
307 |
||
308 |
void InterpreterMacroAssembler::pop_ptr(Register r) { |
|
1066 | 309 |
pop(r); |
1 | 310 |
} |
311 |
||
312 |
void InterpreterMacroAssembler::pop_i(Register r) { |
|
1066 | 313 |
pop(r); |
1 | 314 |
} |
315 |
||
316 |
void InterpreterMacroAssembler::pop_l(Register lo, Register hi) { |
|
1066 | 317 |
pop(lo); |
318 |
pop(hi); |
|
1 | 319 |
} |
320 |
||
321 |
void InterpreterMacroAssembler::pop_f() { |
|
322 |
fld_s(Address(rsp, 0)); |
|
1066 | 323 |
addptr(rsp, 1 * wordSize); |
1 | 324 |
} |
325 |
||
326 |
void InterpreterMacroAssembler::pop_d() { |
|
327 |
fld_d(Address(rsp, 0)); |
|
1066 | 328 |
addptr(rsp, 2 * wordSize); |
1 | 329 |
} |
330 |
||
331 |
||
332 |
void InterpreterMacroAssembler::pop(TosState state) { |
|
333 |
switch (state) { |
|
334 |
case atos: pop_ptr(rax); break; |
|
335 |
case btos: // fall through |
|
336 |
case ctos: // fall through |
|
337 |
case stos: // fall through |
|
338 |
case itos: pop_i(rax); break; |
|
339 |
case ltos: pop_l(rax, rdx); break; |
|
340 |
case ftos: pop_f(); break; |
|
341 |
case dtos: pop_d(); break; |
|
342 |
case vtos: /* nothing to do */ break; |
|
343 |
default : ShouldNotReachHere(); |
|
344 |
} |
|
345 |
verify_oop(rax, state); |
|
346 |
} |
|
347 |
||
348 |
void InterpreterMacroAssembler::push_ptr(Register r) { |
|
1066 | 349 |
push(r); |
1 | 350 |
} |
351 |
||
352 |
void InterpreterMacroAssembler::push_i(Register r) { |
|
1066 | 353 |
push(r); |
1 | 354 |
} |
355 |
||
356 |
void InterpreterMacroAssembler::push_l(Register lo, Register hi) { |
|
1066 | 357 |
push(hi); |
358 |
push(lo); |
|
1 | 359 |
} |
360 |
||
361 |
void InterpreterMacroAssembler::push_f() { |
|
362 |
// Do not schedule for no AGI! Never write beyond rsp! |
|
1066 | 363 |
subptr(rsp, 1 * wordSize); |
1 | 364 |
fstp_s(Address(rsp, 0)); |
365 |
} |
|
366 |
||
367 |
void InterpreterMacroAssembler::push_d(Register r) { |
|
5419 | 368 |
// Do not schedule for no AGI! Never write beyond rsp! |
369 |
subptr(rsp, 2 * wordSize); |
|
370 |
fstp_d(Address(rsp, 0)); |
|
1 | 371 |
} |
372 |
||
373 |
||
374 |
void InterpreterMacroAssembler::push(TosState state) { |
|
375 |
verify_oop(rax, state); |
|
376 |
switch (state) { |
|
377 |
case atos: push_ptr(rax); break; |
|
378 |
case btos: // fall through |
|
379 |
case ctos: // fall through |
|
380 |
case stos: // fall through |
|
381 |
case itos: push_i(rax); break; |
|
382 |
case ltos: push_l(rax, rdx); break; |
|
383 |
case ftos: push_f(); break; |
|
384 |
case dtos: push_d(rax); break; |
|
385 |
case vtos: /* nothing to do */ break; |
|
386 |
default : ShouldNotReachHere(); |
|
387 |
} |
|
388 |
} |
|
389 |
||
390 |
||
5419 | 391 |
// Helpers for swap and dup |
392 |
void InterpreterMacroAssembler::load_ptr(int n, Register val) { |
|
1066 | 393 |
movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n))); |
1 | 394 |
} |
395 |
||
5419 | 396 |
void InterpreterMacroAssembler::store_ptr(int n, Register val) { |
397 |
movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val); |
|
1 | 398 |
} |
399 |
||
2534 | 400 |
void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() { |
1 | 401 |
// set sender sp |
1066 | 402 |
lea(rsi, Address(rsp, wordSize)); |
1 | 403 |
// record last_sp |
1066 | 404 |
movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi); |
2534 | 405 |
} |
406 |
||
407 |
||
408 |
// Jump to from_interpreted entry of a call unless single stepping is possible |
|
409 |
// in this thread in which case we must call the i2i entry |
|
410 |
void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) { |
|
411 |
prepare_to_jump_from_interpreted(); |
|
1 | 412 |
|
413 |
if (JvmtiExport::can_post_interpreter_events()) { |
|
414 |
Label run_compiled_code; |
|
415 |
// JVMTI events, such as single-stepping, are implemented partly by avoiding running |
|
416 |
// compiled code in threads for which the event is enabled. Check here for |
|
417 |
// interp_only_mode if these events CAN be enabled. |
|
418 |
get_thread(temp); |
|
419 |
// interp_only is an int, on little endian it is sufficient to test the byte only |
|
10031
e81ae8b523dc
6990212: JSR 292 JVMTI MethodEnter hook is not called for JSR 292 bootstrap and target methods
never
parents:
9437
diff
changeset
|
420 |
// Is a cmpl faster? |
1 | 421 |
cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0); |
10031
e81ae8b523dc
6990212: JSR 292 JVMTI MethodEnter hook is not called for JSR 292 bootstrap and target methods
never
parents:
9437
diff
changeset
|
422 |
jccb(Assembler::zero, run_compiled_code); |
1 | 423 |
jmp(Address(method, methodOopDesc::interpreter_entry_offset())); |
424 |
bind(run_compiled_code); |
|
425 |
} |
|
426 |
||
427 |
jmp(Address(method, methodOopDesc::from_interpreted_offset())); |
|
428 |
||
429 |
} |
|
430 |
||
431 |
||
432 |
// The following two routines provide a hook so that an implementation |
|
433 |
// can schedule the dispatch in two parts. Intel does not do this. |
|
434 |
void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) { |
|
435 |
// Nothing Intel-specific to be done here. |
|
436 |
} |
|
437 |
||
438 |
void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) { |
|
439 |
dispatch_next(state, step); |
|
440 |
} |
|
441 |
||
442 |
void InterpreterMacroAssembler::dispatch_base(TosState state, address* table, |
|
443 |
bool verifyoop) { |
|
444 |
verify_FPU(1, state); |
|
445 |
if (VerifyActivationFrameSize) { |
|
446 |
Label L; |
|
1066 | 447 |
mov(rcx, rbp); |
448 |
subptr(rcx, rsp); |
|
1 | 449 |
int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize; |
1066 | 450 |
cmpptr(rcx, min_frame_size); |
1 | 451 |
jcc(Assembler::greaterEqual, L); |
452 |
stop("broken stack frame"); |
|
453 |
bind(L); |
|
454 |
} |
|
455 |
if (verifyoop) verify_oop(rax, state); |
|
1066 | 456 |
Address index(noreg, rbx, Address::times_ptr); |
1 | 457 |
ExternalAddress tbl((address)table); |
458 |
ArrayAddress dispatch(tbl, index); |
|
459 |
jump(dispatch); |
|
460 |
} |
|
461 |
||
462 |
||
463 |
void InterpreterMacroAssembler::dispatch_only(TosState state) { |
|
464 |
dispatch_base(state, Interpreter::dispatch_table(state)); |
|
465 |
} |
|
466 |
||
467 |
||
468 |
void InterpreterMacroAssembler::dispatch_only_normal(TosState state) { |
|
469 |
dispatch_base(state, Interpreter::normal_table(state)); |
|
470 |
} |
|
471 |
||
472 |
void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) { |
|
473 |
dispatch_base(state, Interpreter::normal_table(state), false); |
|
474 |
} |
|
475 |
||
476 |
||
477 |
void InterpreterMacroAssembler::dispatch_next(TosState state, int step) { |
|
478 |
// load next bytecode (load before advancing rsi to prevent AGI) |
|
479 |
load_unsigned_byte(rbx, Address(rsi, step)); |
|
480 |
// advance rsi |
|
481 |
increment(rsi, step); |
|
482 |
dispatch_base(state, Interpreter::dispatch_table(state)); |
|
483 |
} |
|
484 |
||
485 |
||
486 |
void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) { |
|
487 |
// load current bytecode |
|
488 |
load_unsigned_byte(rbx, Address(rsi, 0)); |
|
489 |
dispatch_base(state, table); |
|
490 |
} |
|
491 |
||
492 |
// remove activation |
|
493 |
// |
|
494 |
// Unlock the receiver if this is a synchronized method. |
|
495 |
// Unlock any Java monitors from syncronized blocks. |
|
496 |
// Remove the activation from the stack. |
|
497 |
// |
|
498 |
// If there are locked Java monitors |
|
499 |
// If throw_monitor_exception |
|
500 |
// throws IllegalMonitorStateException |
|
501 |
// Else if install_monitor_exception |
|
502 |
// installs IllegalMonitorStateException |
|
503 |
// Else |
|
504 |
// no error processing |
|
505 |
void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr, |
|
506 |
bool throw_monitor_exception, |
|
507 |
bool install_monitor_exception, |
|
508 |
bool notify_jvmdi) { |
|
509 |
// Note: Registers rax, rdx and FPU ST(0) may be in use for the result |
|
510 |
// check if synchronized method |
|
511 |
Label unlocked, unlock, no_unlock; |
|
512 |
||
513 |
get_thread(rcx); |
|
514 |
const Address do_not_unlock_if_synchronized(rcx, |
|
515 |
in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); |
|
516 |
||
517 |
movbool(rbx, do_not_unlock_if_synchronized); |
|
1066 | 518 |
mov(rdi,rbx); |
1 | 519 |
movbool(do_not_unlock_if_synchronized, false); // reset the flag |
520 |
||
1066 | 521 |
movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags |
1 | 522 |
movl(rcx, Address(rbx, methodOopDesc::access_flags_offset())); |
523 |
||
524 |
testl(rcx, JVM_ACC_SYNCHRONIZED); |
|
525 |
jcc(Assembler::zero, unlocked); |
|
526 |
||
527 |
// Don't unlock anything if the _do_not_unlock_if_synchronized flag |
|
528 |
// is set. |
|
1066 | 529 |
mov(rcx,rdi); |
1 | 530 |
testbool(rcx); |
531 |
jcc(Assembler::notZero, no_unlock); |
|
532 |
||
533 |
// unlock monitor |
|
534 |
push(state); // save result |
|
535 |
||
536 |
// BasicObjectLock will be first in list, since this is a synchronized method. However, need |
|
537 |
// to check that the object has not been unlocked by an explicit monitorexit bytecode. |
|
538 |
const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); |
|
1066 | 539 |
lea (rdx, monitor); // address of first monitor |
1 | 540 |
|
1066 | 541 |
movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
542 |
testptr(rax, rax); |
|
543 |
jcc (Assembler::notZero, unlock); |
|
1 | 544 |
|
545 |
pop(state); |
|
546 |
if (throw_monitor_exception) { |
|
547 |
empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow |
|
548 |
||
549 |
// Entry already unlocked, need to throw exception |
|
550 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); |
|
551 |
should_not_reach_here(); |
|
552 |
} else { |
|
553 |
// Monitor already unlocked during a stack unroll. |
|
554 |
// If requested, install an illegal_monitor_state_exception. |
|
555 |
// Continue with stack unrolling. |
|
556 |
if (install_monitor_exception) { |
|
557 |
empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow |
|
558 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); |
|
559 |
} |
|
560 |
jmp(unlocked); |
|
561 |
} |
|
562 |
||
563 |
bind(unlock); |
|
564 |
unlock_object(rdx); |
|
565 |
pop(state); |
|
566 |
||
567 |
// Check that for block-structured locking (i.e., that all locked objects has been unlocked) |
|
568 |
bind(unlocked); |
|
569 |
||
570 |
// rax, rdx: Might contain return value |
|
571 |
||
572 |
// Check that all monitors are unlocked |
|
573 |
{ |
|
574 |
Label loop, exception, entry, restart; |
|
575 |
const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; |
|
576 |
const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
|
577 |
const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); |
|
578 |
||
579 |
bind(restart); |
|
1066 | 580 |
movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
581 |
lea(rbx, monitor_block_bot); // points to word before bottom of monitor block |
|
1 | 582 |
jmp(entry); |
583 |
||
584 |
// Entry already locked, need to throw exception |
|
585 |
bind(exception); |
|
586 |
||
587 |
if (throw_monitor_exception) { |
|
588 |
empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow |
|
589 |
||
590 |
// Throw exception |
|
591 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); |
|
592 |
should_not_reach_here(); |
|
593 |
} else { |
|
594 |
// Stack unrolling. Unlock object and install illegal_monitor_exception |
|
595 |
// Unlock does not block, so don't have to worry about the frame |
|
596 |
||
597 |
push(state); |
|
1066 | 598 |
mov(rdx, rcx); |
1 | 599 |
unlock_object(rdx); |
600 |
pop(state); |
|
601 |
||
602 |
if (install_monitor_exception) { |
|
603 |
empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow |
|
604 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); |
|
605 |
} |
|
606 |
||
607 |
jmp(restart); |
|
608 |
} |
|
609 |
||
610 |
bind(loop); |
|
1066 | 611 |
cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
1 | 612 |
jcc(Assembler::notEqual, exception); |
613 |
||
1066 | 614 |
addptr(rcx, entry_size); // otherwise advance to next entry |
1 | 615 |
bind(entry); |
1066 | 616 |
cmpptr(rcx, rbx); // check if bottom reached |
1 | 617 |
jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
618 |
} |
|
619 |
||
620 |
bind(no_unlock); |
|
621 |
||
622 |
// jvmti support |
|
623 |
if (notify_jvmdi) { |
|
624 |
notify_method_exit(state, NotifyJVMTI); // preserve TOSCA |
|
625 |
} else { |
|
626 |
notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA |
|
627 |
} |
|
628 |
||
629 |
// remove activation |
|
1066 | 630 |
movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
1 | 631 |
leave(); // remove frame anchor |
1066 | 632 |
pop(ret_addr); // get return address |
633 |
mov(rsp, rbx); // set sp to sender sp |
|
1 | 634 |
if (UseSSE) { |
635 |
// float and double are returned in xmm register in SSE-mode |
|
636 |
if (state == ftos && UseSSE >= 1) { |
|
1066 | 637 |
subptr(rsp, wordSize); |
1 | 638 |
fstp_s(Address(rsp, 0)); |
639 |
movflt(xmm0, Address(rsp, 0)); |
|
1066 | 640 |
addptr(rsp, wordSize); |
1 | 641 |
} else if (state == dtos && UseSSE >= 2) { |
1066 | 642 |
subptr(rsp, 2*wordSize); |
1 | 643 |
fstp_d(Address(rsp, 0)); |
644 |
movdbl(xmm0, Address(rsp, 0)); |
|
1066 | 645 |
addptr(rsp, 2*wordSize); |
1 | 646 |
} |
647 |
} |
|
648 |
} |
|
649 |
||
650 |
#endif /* !CC_INTERP */ |
|
651 |
||
652 |
||
653 |
// Lock object |
|
654 |
// |
|
655 |
// Argument: rdx : Points to BasicObjectLock to be used for locking. Must |
|
656 |
// be initialized with object to lock |
|
657 |
void InterpreterMacroAssembler::lock_object(Register lock_reg) { |
|
658 |
assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); |
|
659 |
||
660 |
if (UseHeavyMonitors) { |
|
661 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); |
|
662 |
} else { |
|
663 |
||
664 |
Label done; |
|
665 |
||
666 |
const Register swap_reg = rax; // Must use rax, for cmpxchg instruction |
|
667 |
const Register obj_reg = rcx; // Will contain the oop |
|
668 |
||
669 |
const int obj_offset = BasicObjectLock::obj_offset_in_bytes(); |
|
670 |
const int lock_offset = BasicObjectLock::lock_offset_in_bytes (); |
|
671 |
const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes(); |
|
672 |
||
673 |
Label slow_case; |
|
674 |
||
675 |
// Load object pointer into obj_reg %rcx |
|
1066 | 676 |
movptr(obj_reg, Address(lock_reg, obj_offset)); |
1 | 677 |
|
678 |
if (UseBiasedLocking) { |
|
679 |
// Note: we use noreg for the temporary register since it's hard |
|
680 |
// to come up with a free register on all incoming code paths |
|
681 |
biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case); |
|
682 |
} |
|
683 |
||
684 |
// Load immediate 1 into swap_reg %rax, |
|
1066 | 685 |
movptr(swap_reg, (int32_t)1); |
1 | 686 |
|
687 |
// Load (object->mark() | 1) into swap_reg %rax, |
|
1066 | 688 |
orptr(swap_reg, Address(obj_reg, 0)); |
1 | 689 |
|
690 |
// Save (object->mark() | 1) into BasicLock's displaced header |
|
1066 | 691 |
movptr(Address(lock_reg, mark_offset), swap_reg); |
1 | 692 |
|
693 |
assert(lock_offset == 0, "displached header must be first word in BasicObjectLock"); |
|
694 |
if (os::is_MP()) { |
|
695 |
lock(); |
|
696 |
} |
|
1066 | 697 |
cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
1 | 698 |
if (PrintBiasedLockingStatistics) { |
699 |
cond_inc32(Assembler::zero, |
|
700 |
ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); |
|
701 |
} |
|
702 |
jcc(Assembler::zero, done); |
|
703 |
||
704 |
// Test if the oopMark is an obvious stack pointer, i.e., |
|
705 |
// 1) (mark & 3) == 0, and |
|
706 |
// 2) rsp <= mark < mark + os::pagesize() |
|
707 |
// |
|
708 |
// These 3 tests can be done by evaluating the following |
|
709 |
// expression: ((mark - rsp) & (3 - os::vm_page_size())), |
|
710 |
// assuming both stack pointer and pagesize have their |
|
711 |
// least significant 2 bits clear. |
|
712 |
// NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg |
|
1066 | 713 |
subptr(swap_reg, rsp); |
714 |
andptr(swap_reg, 3 - os::vm_page_size()); |
|
1 | 715 |
|
716 |
// Save the test result, for recursive case, the result is zero |
|
1066 | 717 |
movptr(Address(lock_reg, mark_offset), swap_reg); |
1 | 718 |
|
719 |
if (PrintBiasedLockingStatistics) { |
|
720 |
cond_inc32(Assembler::zero, |
|
721 |
ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); |
|
722 |
} |
|
723 |
jcc(Assembler::zero, done); |
|
724 |
||
725 |
bind(slow_case); |
|
726 |
||
727 |
// Call the runtime routine for slow case |
|
728 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); |
|
729 |
||
730 |
bind(done); |
|
731 |
} |
|
732 |
} |
|
733 |
||
734 |
||
735 |
// Unlocks an object. Used in monitorexit bytecode and remove_activation. |
|
736 |
// |
|
737 |
// Argument: rdx : Points to BasicObjectLock structure for lock |
|
738 |
// Throw an IllegalMonitorException if object is not locked by current thread |
|
739 |
// |
|
740 |
// Uses: rax, rbx, rcx, rdx |
|
741 |
void InterpreterMacroAssembler::unlock_object(Register lock_reg) { |
|
742 |
assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); |
|
743 |
||
744 |
if (UseHeavyMonitors) { |
|
745 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
|
746 |
} else { |
|
747 |
Label done; |
|
748 |
||
749 |
const Register swap_reg = rax; // Must use rax, for cmpxchg instruction |
|
750 |
const Register header_reg = rbx; // Will contain the old oopMark |
|
751 |
const Register obj_reg = rcx; // Will contain the oop |
|
752 |
||
753 |
save_bcp(); // Save in case of exception |
|
754 |
||
755 |
// Convert from BasicObjectLock structure to object and BasicLock structure |
|
756 |
// Store the BasicLock address into %rax, |
|
1066 | 757 |
lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes())); |
1 | 758 |
|
759 |
// Load oop into obj_reg(%rcx) |
|
1066 | 760 |
movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ())); |
1 | 761 |
|
762 |
// Free entry |
|
1888
bbf498fb4354
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
1217
diff
changeset
|
763 |
movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD); |
1 | 764 |
|
765 |
if (UseBiasedLocking) { |
|
766 |
biased_locking_exit(obj_reg, header_reg, done); |
|
767 |
} |
|
768 |
||
769 |
// Load the old header from BasicLock structure |
|
1066 | 770 |
movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes())); |
1 | 771 |
|
772 |
// Test for recursion |
|
1066 | 773 |
testptr(header_reg, header_reg); |
1 | 774 |
|
775 |
// zero for recursive case |
|
776 |
jcc(Assembler::zero, done); |
|
777 |
||
778 |
// Atomic swap back the old header |
|
779 |
if (os::is_MP()) lock(); |
|
1066 | 780 |
cmpxchgptr(header_reg, Address(obj_reg, 0)); |
1 | 781 |
|
782 |
// zero for recursive case |
|
783 |
jcc(Assembler::zero, done); |
|
784 |
||
785 |
// Call the runtime routine for slow case. |
|
1066 | 786 |
movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj |
1 | 787 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
788 |
||
789 |
bind(done); |
|
790 |
||
791 |
restore_bcp(); |
|
792 |
} |
|
793 |
} |
|
794 |
||
795 |
||
796 |
#ifndef CC_INTERP |
|
797 |
||
798 |
// Test ImethodDataPtr. If it is null, continue at the specified label |
|
799 |
void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) { |
|
800 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
1066 | 801 |
movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize)); |
802 |
testptr(mdp, mdp); |
|
1 | 803 |
jcc(Assembler::zero, zero_continue); |
804 |
} |
|
805 |
||
806 |
||
807 |
// Set the method data pointer for the current bcp. |
|
808 |
void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { |
|
809 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
7889
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
810 |
Label set_mdp; |
1066 | 811 |
push(rax); |
812 |
push(rbx); |
|
1 | 813 |
|
814 |
get_method(rbx); |
|
815 |
// Test MDO to avoid the call if it is NULL. |
|
1066 | 816 |
movptr(rax, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
817 |
testptr(rax, rax); |
|
7889
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
818 |
jcc(Assembler::zero, set_mdp); |
1 | 819 |
// rbx,: method |
820 |
// rsi: bcp |
|
821 |
call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi); |
|
822 |
// rax,: mdi |
|
7889
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
823 |
// mdo is guaranteed to be non-zero here, we checked for it before the call. |
1066 | 824 |
movptr(rbx, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
825 |
addptr(rbx, in_bytes(methodDataOopDesc::data_offset())); |
|
7889
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
826 |
addptr(rax, rbx); |
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
827 |
bind(set_mdp); |
02144432d0e1
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
7397
diff
changeset
|
828 |
movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rax); |
1066 | 829 |
pop(rbx); |
830 |
pop(rax); |
|
1 | 831 |
} |
832 |
||
833 |
void InterpreterMacroAssembler::verify_method_data_pointer() { |
|
834 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
835 |
#ifdef ASSERT |
|
836 |
Label verify_continue; |
|
1066 | 837 |
push(rax); |
838 |
push(rbx); |
|
839 |
push(rcx); |
|
840 |
push(rdx); |
|
1 | 841 |
test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue |
842 |
get_method(rbx); |
|
843 |
||
844 |
// If the mdp is valid, it will point to a DataLayout header which is |
|
845 |
// consistent with the bcp. The converse is highly probable also. |
|
2148
09c7f703773b
6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents:
1909
diff
changeset
|
846 |
load_unsigned_short(rdx, Address(rcx, in_bytes(DataLayout::bci_offset()))); |
1066 | 847 |
addptr(rdx, Address(rbx, methodOopDesc::const_offset())); |
848 |
lea(rdx, Address(rdx, constMethodOopDesc::codes_offset())); |
|
849 |
cmpptr(rdx, rsi); |
|
1 | 850 |
jcc(Assembler::equal, verify_continue); |
851 |
// rbx,: method |
|
852 |
// rsi: bcp |
|
853 |
// rcx: mdp |
|
854 |
call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx); |
|
855 |
bind(verify_continue); |
|
1066 | 856 |
pop(rdx); |
857 |
pop(rcx); |
|
858 |
pop(rbx); |
|
859 |
pop(rax); |
|
1 | 860 |
#endif // ASSERT |
861 |
} |
|
862 |
||
863 |
||
864 |
void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) { |
|
1066 | 865 |
// %%% this seems to be used to store counter data which is surely 32bits |
866 |
// however 64bit side stores 64 bits which seems wrong |
|
1 | 867 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
868 |
Address data(mdp_in, constant); |
|
1066 | 869 |
movptr(data, value); |
1 | 870 |
} |
871 |
||
872 |
||
873 |
void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, |
|
874 |
int constant, |
|
875 |
bool decrement) { |
|
876 |
// Counter address |
|
877 |
Address data(mdp_in, constant); |
|
878 |
||
879 |
increment_mdp_data_at(data, decrement); |
|
880 |
} |
|
881 |
||
882 |
||
883 |
void InterpreterMacroAssembler::increment_mdp_data_at(Address data, |
|
884 |
bool decrement) { |
|
885 |
||
886 |
assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); |
|
887 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
888 |
||
1066 | 889 |
// %%% 64bit treats this as 64 bit which seems unlikely |
1 | 890 |
if (decrement) { |
891 |
// Decrement the register. Set condition codes. |
|
892 |
addl(data, -DataLayout::counter_increment); |
|
893 |
// If the decrement causes the counter to overflow, stay negative |
|
894 |
Label L; |
|
895 |
jcc(Assembler::negative, L); |
|
896 |
addl(data, DataLayout::counter_increment); |
|
897 |
bind(L); |
|
898 |
} else { |
|
899 |
assert(DataLayout::counter_increment == 1, |
|
900 |
"flow-free idiom only works with 1"); |
|
901 |
// Increment the register. Set carry flag. |
|
902 |
addl(data, DataLayout::counter_increment); |
|
903 |
// If the increment causes the counter to overflow, pull back by 1. |
|
904 |
sbbl(data, 0); |
|
905 |
} |
|
906 |
} |
|
907 |
||
908 |
||
909 |
void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, |
|
910 |
Register reg, |
|
911 |
int constant, |
|
912 |
bool decrement) { |
|
913 |
Address data(mdp_in, reg, Address::times_1, constant); |
|
914 |
||
915 |
increment_mdp_data_at(data, decrement); |
|
916 |
} |
|
917 |
||
918 |
||
919 |
void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) { |
|
920 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
921 |
int header_offset = in_bytes(DataLayout::header_offset()); |
|
922 |
int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant); |
|
923 |
// Set the flag |
|
924 |
orl(Address(mdp_in, header_offset), header_bits); |
|
925 |
} |
|
926 |
||
927 |
||
928 |
||
929 |
void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in, |
|
930 |
int offset, |
|
931 |
Register value, |
|
932 |
Register test_value_out, |
|
933 |
Label& not_equal_continue) { |
|
934 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
935 |
if (test_value_out == noreg) { |
|
1066 | 936 |
cmpptr(value, Address(mdp_in, offset)); |
1 | 937 |
} else { |
938 |
// Put the test value into a register, so caller can use it: |
|
1066 | 939 |
movptr(test_value_out, Address(mdp_in, offset)); |
940 |
cmpptr(test_value_out, value); |
|
1 | 941 |
} |
942 |
jcc(Assembler::notEqual, not_equal_continue); |
|
943 |
} |
|
944 |
||
945 |
||
946 |
void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) { |
|
947 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
948 |
Address disp_address(mdp_in, offset_of_disp); |
|
1066 | 949 |
addptr(mdp_in,disp_address); |
950 |
movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); |
|
1 | 951 |
} |
952 |
||
953 |
||
954 |
void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) { |
|
955 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
956 |
Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp); |
|
1066 | 957 |
addptr(mdp_in, disp_address); |
958 |
movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); |
|
1 | 959 |
} |
960 |
||
961 |
||
962 |
void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) { |
|
963 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
1066 | 964 |
addptr(mdp_in, constant); |
965 |
movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); |
|
1 | 966 |
} |
967 |
||
968 |
||
969 |
void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) { |
|
970 |
assert(ProfileInterpreter, "must be profiling interpreter"); |
|
1066 | 971 |
push(return_bci); // save/restore across call_VM |
1 | 972 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci); |
1066 | 973 |
pop(return_bci); |
1 | 974 |
} |
975 |
||
976 |
||
977 |
void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) { |
|
978 |
if (ProfileInterpreter) { |
|
979 |
Label profile_continue; |
|
980 |
||
981 |
// If no method data exists, go to profile_continue. |
|
982 |
// Otherwise, assign to mdp |
|
983 |
test_method_data_pointer(mdp, profile_continue); |
|
984 |
||
985 |
// We are taking a branch. Increment the taken count. |
|
986 |
// We inline increment_mdp_data_at to return bumped_count in a register |
|
987 |
//increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset())); |
|
988 |
Address data(mdp, in_bytes(JumpData::taken_offset())); |
|
1066 | 989 |
|
990 |
// %%% 64bit treats these cells as 64 bit but they seem to be 32 bit |
|
1 | 991 |
movl(bumped_count,data); |
992 |
assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); |
|
993 |
addl(bumped_count, DataLayout::counter_increment); |
|
994 |
sbbl(bumped_count, 0); |
|
995 |
movl(data,bumped_count); // Store back out |
|
996 |
||
997 |
// The method data pointer needs to be updated to reflect the new target. |
|
998 |
update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset())); |
|
999 |
bind (profile_continue); |
|
1000 |
} |
|
1001 |
} |
|
1002 |
||
1003 |
||
1004 |
void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) { |
|
1005 |
if (ProfileInterpreter) { |
|
1006 |
Label profile_continue; |
|
1007 |
||
1008 |
// If no method data exists, go to profile_continue. |
|
1009 |
test_method_data_pointer(mdp, profile_continue); |
|
1010 |
||
1011 |
// We are taking a branch. Increment the not taken count. |
|
1012 |
increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset())); |
|
1013 |
||
1014 |
// The method data pointer needs to be updated to correspond to the next bytecode |
|
1015 |
update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size())); |
|
1016 |
bind (profile_continue); |
|
1017 |
} |
|
1018 |
} |
|
1019 |
||
1020 |
||
1021 |
void InterpreterMacroAssembler::profile_call(Register mdp) { |
|
1022 |
if (ProfileInterpreter) { |
|
1023 |
Label profile_continue; |
|
1024 |
||
1025 |
// If no method data exists, go to profile_continue. |
|
1026 |
test_method_data_pointer(mdp, profile_continue); |
|
1027 |
||
1028 |
// We are making a call. Increment the count. |
|
1029 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
1030 |
||
1031 |
// The method data pointer needs to be updated to reflect the new target. |
|
1032 |
update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size())); |
|
1033 |
bind (profile_continue); |
|
1034 |
} |
|
1035 |
} |
|
1036 |
||
1037 |
||
1038 |
void InterpreterMacroAssembler::profile_final_call(Register mdp) { |
|
1039 |
if (ProfileInterpreter) { |
|
1040 |
Label profile_continue; |
|
1041 |
||
1042 |
// If no method data exists, go to profile_continue. |
|
1043 |
test_method_data_pointer(mdp, profile_continue); |
|
1044 |
||
1045 |
// We are making a call. Increment the count. |
|
1046 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
1047 |
||
1048 |
// The method data pointer needs to be updated to reflect the new target. |
|
1049 |
update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size())); |
|
1050 |
bind (profile_continue); |
|
1051 |
} |
|
1052 |
} |
|
1053 |
||
1054 |
||
2570
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1055 |
void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, |
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1056 |
Register reg2, |
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1057 |
bool receiver_can_be_null) { |
1 | 1058 |
if (ProfileInterpreter) { |
1059 |
Label profile_continue; |
|
1060 |
||
1061 |
// If no method data exists, go to profile_continue. |
|
1062 |
test_method_data_pointer(mdp, profile_continue); |
|
1063 |
||
2570
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1064 |
Label skip_receiver_profile; |
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1065 |
if (receiver_can_be_null) { |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1066 |
Label not_null; |
2570
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1067 |
testptr(receiver, receiver); |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1068 |
jccb(Assembler::notZero, not_null); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1069 |
// We are making a call. Increment the count for null receiver. |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1070 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1071 |
jmp(skip_receiver_profile); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1072 |
bind(not_null); |
2570
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1073 |
} |
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1074 |
|
1 | 1075 |
// Record the receiver type. |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1076 |
record_klass_in_profile(receiver, mdp, reg2, true); |
2570
ecc7862946d4
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
2534
diff
changeset
|
1077 |
bind(skip_receiver_profile); |
1 | 1078 |
|
1079 |
// The method data pointer needs to be updated to reflect the new target. |
|
1080 |
update_mdp_by_constant(mdp, |
|
1081 |
in_bytes(VirtualCallData:: |
|
1082 |
virtual_call_data_size())); |
|
1083 |
bind(profile_continue); |
|
1084 |
} |
|
1085 |
} |
|
1086 |
||
1087 |
||
1088 |
void InterpreterMacroAssembler::record_klass_in_profile_helper( |
|
1089 |
Register receiver, Register mdp, |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
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4478
diff
changeset
|
1090 |
Register reg2, int start_row, |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1091 |
Label& done, bool is_virtual_call) { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1092 |
if (TypeProfileWidth == 0) { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1093 |
if (is_virtual_call) { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1094 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1095 |
} |
3814
91f531a11872
6858208: jvm crash when specifying TypeProfileWidth=0 on jdk 6.0
poonam
parents:
3179
diff
changeset
|
1096 |
return; |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1097 |
} |
3814
91f531a11872
6858208: jvm crash when specifying TypeProfileWidth=0 on jdk 6.0
poonam
parents:
3179
diff
changeset
|
1098 |
|
1 | 1099 |
int last_row = VirtualCallData::row_limit() - 1; |
1100 |
assert(start_row <= last_row, "must be work left to do"); |
|
1101 |
// Test this row for both the receiver and for null. |
|
1102 |
// Take any of three different outcomes: |
|
1103 |
// 1. found receiver => increment count and goto done |
|
1104 |
// 2. found null => keep looking for case 1, maybe allocate this cell |
|
1105 |
// 3. found something else => keep looking for cases 1 and 2 |
|
1106 |
// Case 3 is handled by a recursive call. |
|
1107 |
for (int row = start_row; row <= last_row; row++) { |
|
1108 |
Label next_test; |
|
1109 |
bool test_for_null_also = (row == start_row); |
|
1110 |
||
1111 |
// See if the receiver is receiver[n]. |
|
1112 |
int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row)); |
|
1113 |
test_mdp_data_at(mdp, recvr_offset, receiver, |
|
1114 |
(test_for_null_also ? reg2 : noreg), |
|
1115 |
next_test); |
|
1116 |
// (Reg2 now contains the receiver from the CallData.) |
|
1117 |
||
1118 |
// The receiver is receiver[n]. Increment count[n]. |
|
1119 |
int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row)); |
|
1120 |
increment_mdp_data_at(mdp, count_offset); |
|
1121 |
jmp(done); |
|
1122 |
bind(next_test); |
|
1123 |
||
1124 |
if (row == start_row) { |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1125 |
Label found_null; |
1 | 1126 |
// Failed the equality check on receiver[n]... Test for null. |
1066 | 1127 |
testptr(reg2, reg2); |
1 | 1128 |
if (start_row == last_row) { |
1129 |
// The only thing left to do is handle the null case. |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1130 |
if (is_virtual_call) { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1131 |
jccb(Assembler::zero, found_null); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1132 |
// Receiver did not match any saved receiver and there is no empty row for it. |
4892
e977b527544a
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
4754
diff
changeset
|
1133 |
// Increment total counter to indicate polymorphic case. |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1134 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1135 |
jmp(done); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1136 |
bind(found_null); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1137 |
} else { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1138 |
jcc(Assembler::notZero, done); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1139 |
} |
1 | 1140 |
break; |
1141 |
} |
|
1142 |
// Since null is rare, make it be the branch-taken case. |
|
1143 |
jcc(Assembler::zero, found_null); |
|
1144 |
||
1145 |
// Put all the "Case 3" tests here. |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1146 |
record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call); |
1 | 1147 |
|
1148 |
// Found a null. Keep searching for a matching receiver, |
|
1149 |
// but remember that this is an empty (unused) slot. |
|
1150 |
bind(found_null); |
|
1151 |
} |
|
1152 |
} |
|
1153 |
||
1154 |
// In the fall-through case, we found no matching receiver, but we |
|
1155 |
// observed the receiver[start_row] is NULL. |
|
1156 |
||
1157 |
// Fill in the receiver field and increment the count. |
|
1158 |
int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row)); |
|
1159 |
set_mdp_data_at(mdp, recvr_offset, receiver); |
|
1160 |
int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row)); |
|
1066 | 1161 |
movptr(reg2, (int32_t)DataLayout::counter_increment); |
1 | 1162 |
set_mdp_data_at(mdp, count_offset, reg2); |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1163 |
if (start_row > 0) { |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1164 |
jmp(done); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1165 |
} |
1 | 1166 |
} |
1167 |
||
1168 |
void InterpreterMacroAssembler::record_klass_in_profile(Register receiver, |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1169 |
Register mdp, Register reg2, |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1170 |
bool is_virtual_call) { |
1 | 1171 |
assert(ProfileInterpreter, "must be profiling"); |
1172 |
Label done; |
|
1173 |
||
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1174 |
record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call); |
1 | 1175 |
|
1176 |
bind (done); |
|
1177 |
} |
|
1178 |
||
1179 |
void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) { |
|
1180 |
if (ProfileInterpreter) { |
|
1181 |
Label profile_continue; |
|
1182 |
uint row; |
|
1183 |
||
1184 |
// If no method data exists, go to profile_continue. |
|
1185 |
test_method_data_pointer(mdp, profile_continue); |
|
1186 |
||
1187 |
// Update the total ret count. |
|
1188 |
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
1189 |
||
1190 |
for (row = 0; row < RetData::row_limit(); row++) { |
|
1191 |
Label next_test; |
|
1192 |
||
1193 |
// See if return_bci is equal to bci[n]: |
|
1194 |
test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci, |
|
1195 |
noreg, next_test); |
|
1196 |
||
1197 |
// return_bci is equal to bci[n]. Increment the count. |
|
1198 |
increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row))); |
|
1199 |
||
1200 |
// The method data pointer needs to be updated to reflect the new target. |
|
1201 |
update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row))); |
|
1202 |
jmp(profile_continue); |
|
1203 |
bind(next_test); |
|
1204 |
} |
|
1205 |
||
1206 |
update_mdp_for_ret(return_bci); |
|
1207 |
||
1208 |
bind (profile_continue); |
|
1209 |
} |
|
1210 |
} |
|
1211 |
||
1212 |
||
1213 |
void InterpreterMacroAssembler::profile_null_seen(Register mdp) { |
|
1214 |
if (ProfileInterpreter) { |
|
1215 |
Label profile_continue; |
|
1216 |
||
1217 |
// If no method data exists, go to profile_continue. |
|
1218 |
test_method_data_pointer(mdp, profile_continue); |
|
1219 |
||
3179
e9442e207d31
6851908: interpreter null check profiling broken causing extra compilation invalidation
never
parents:
2570
diff
changeset
|
1220 |
set_mdp_flag_at(mdp, BitData::null_seen_byte_constant()); |
e9442e207d31
6851908: interpreter null check profiling broken causing extra compilation invalidation
never
parents:
2570
diff
changeset
|
1221 |
|
1 | 1222 |
// The method data pointer needs to be updated. |
1223 |
int mdp_delta = in_bytes(BitData::bit_data_size()); |
|
1224 |
if (TypeProfileCasts) { |
|
1225 |
mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); |
|
1226 |
} |
|
1227 |
update_mdp_by_constant(mdp, mdp_delta); |
|
1228 |
||
1229 |
bind (profile_continue); |
|
1230 |
} |
|
1231 |
} |
|
1232 |
||
1233 |
||
1234 |
void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) { |
|
1235 |
if (ProfileInterpreter && TypeProfileCasts) { |
|
1236 |
Label profile_continue; |
|
1237 |
||
1238 |
// If no method data exists, go to profile_continue. |
|
1239 |
test_method_data_pointer(mdp, profile_continue); |
|
1240 |
||
1241 |
int count_offset = in_bytes(CounterData::count_offset()); |
|
1242 |
// Back up the address, since we have already bumped the mdp. |
|
1243 |
count_offset -= in_bytes(VirtualCallData::virtual_call_data_size()); |
|
1244 |
||
1245 |
// *Decrement* the counter. We expect to see zero or small negatives. |
|
1246 |
increment_mdp_data_at(mdp, count_offset, true); |
|
1247 |
||
1248 |
bind (profile_continue); |
|
1249 |
} |
|
1250 |
} |
|
1251 |
||
1252 |
||
1253 |
void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) |
|
1254 |
{ |
|
1255 |
if (ProfileInterpreter) { |
|
1256 |
Label profile_continue; |
|
1257 |
||
1258 |
// If no method data exists, go to profile_continue. |
|
1259 |
test_method_data_pointer(mdp, profile_continue); |
|
1260 |
||
1261 |
// The method data pointer needs to be updated. |
|
1262 |
int mdp_delta = in_bytes(BitData::bit_data_size()); |
|
1263 |
if (TypeProfileCasts) { |
|
1264 |
mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); |
|
1265 |
||
1266 |
// Record the object type. |
|
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4478
diff
changeset
|
1267 |
record_klass_in_profile(klass, mdp, reg2, false); |
1 | 1268 |
assert(reg2 == rdi, "we know how to fix this blown reg"); |
1269 |
restore_locals(); // Restore EDI |
|
1270 |
} |
|
1271 |
update_mdp_by_constant(mdp, mdp_delta); |
|
1272 |
||
1273 |
bind(profile_continue); |
|
1274 |
} |
|
1275 |
} |
|
1276 |
||
1277 |
||
1278 |
void InterpreterMacroAssembler::profile_switch_default(Register mdp) { |
|
1279 |
if (ProfileInterpreter) { |
|
1280 |
Label profile_continue; |
|
1281 |
||
1282 |
// If no method data exists, go to profile_continue. |
|
1283 |
test_method_data_pointer(mdp, profile_continue); |
|
1284 |
||
1285 |
// Update the default case count |
|
1286 |
increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset())); |
|
1287 |
||
1288 |
// The method data pointer needs to be updated. |
|
1289 |
update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset())); |
|
1290 |
||
1291 |
bind (profile_continue); |
|
1292 |
} |
|
1293 |
} |
|
1294 |
||
1295 |
||
1296 |
void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) { |
|
1297 |
if (ProfileInterpreter) { |
|
1298 |
Label profile_continue; |
|
1299 |
||
1300 |
// If no method data exists, go to profile_continue. |
|
1301 |
test_method_data_pointer(mdp, profile_continue); |
|
1302 |
||
1303 |
// Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes() |
|
1066 | 1304 |
movptr(reg2, (int32_t)in_bytes(MultiBranchData::per_case_size())); |
1305 |
// index is positive and so should have correct value if this code were |
|
1306 |
// used on 64bits |
|
1307 |
imulptr(index, reg2); |
|
1308 |
addptr(index, in_bytes(MultiBranchData::case_array_offset())); |
|
1 | 1309 |
|
1310 |
// Update the case count |
|
1311 |
increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset())); |
|
1312 |
||
1313 |
// The method data pointer needs to be updated. |
|
1314 |
update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset())); |
|
1315 |
||
1316 |
bind (profile_continue); |
|
1317 |
} |
|
1318 |
} |
|
1319 |
||
1320 |
#endif // !CC_INTERP |
|
1321 |
||
1322 |
||
1323 |
||
1324 |
void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) { |
|
1325 |
if (state == atos) MacroAssembler::verify_oop(reg); |
|
1326 |
} |
|
1327 |
||
1328 |
||
1329 |
#ifndef CC_INTERP |
|
1330 |
void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) { |
|
1331 |
if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth); |
|
1332 |
} |
|
1333 |
||
1334 |
#endif /* CC_INTERP */ |
|
1335 |
||
1336 |
||
1337 |
void InterpreterMacroAssembler::notify_method_entry() { |
|
1338 |
// Whenever JVMTI is interp_only_mode, method entry/exit events are sent to |
|
1339 |
// track stack depth. If it is possible to enter interp_only_mode we add |
|
1340 |
// the code to check if the event should be sent. |
|
1341 |
if (JvmtiExport::can_post_interpreter_events()) { |
|
1342 |
Label L; |
|
1343 |
get_thread(rcx); |
|
1344 |
movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); |
|
1345 |
testl(rcx,rcx); |
|
1346 |
jcc(Assembler::zero, L); |
|
1347 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry)); |
|
1348 |
bind(L); |
|
1349 |
} |
|
1350 |
||
1351 |
{ |
|
1352 |
SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); |
|
1353 |
get_thread(rcx); |
|
1354 |
get_method(rbx); |
|
1355 |
call_VM_leaf( |
|
1356 |
CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx); |
|
1357 |
} |
|
2136
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1358 |
|
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1359 |
// RedefineClasses() tracing support for obsolete method entry |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1360 |
if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1361 |
get_thread(rcx); |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1362 |
get_method(rbx); |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1363 |
call_VM_leaf( |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1364 |
CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1365 |
rcx, rbx); |
c55428da3cec
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
1217
diff
changeset
|
1366 |
} |
1 | 1367 |
} |
1368 |
||
1369 |
||
1370 |
void InterpreterMacroAssembler::notify_method_exit( |
|
1371 |
TosState state, NotifyMethodExitMode mode) { |
|
1372 |
// Whenever JVMTI is interp_only_mode, method entry/exit events are sent to |
|
1373 |
// track stack depth. If it is possible to enter interp_only_mode we add |
|
1374 |
// the code to check if the event should be sent. |
|
1375 |
if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) { |
|
1376 |
Label L; |
|
1377 |
// Note: frame::interpreter_frame_result has a dependency on how the |
|
1378 |
// method result is saved across the call to post_method_exit. If this |
|
1379 |
// is changed then the interpreter_frame_result implementation will |
|
1380 |
// need to be updated too. |
|
1381 |
||
1382 |
// For c++ interpreter the result is always stored at a known location in the frame |
|
1383 |
// template interpreter will leave it on the top of the stack. |
|
1384 |
NOT_CC_INTERP(push(state);) |
|
1385 |
get_thread(rcx); |
|
1386 |
movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); |
|
1387 |
testl(rcx,rcx); |
|
1388 |
jcc(Assembler::zero, L); |
|
1389 |
call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit)); |
|
1390 |
bind(L); |
|
1391 |
NOT_CC_INTERP(pop(state);) |
|
1392 |
} |
|
1393 |
||
1394 |
{ |
|
1395 |
SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); |
|
1066 | 1396 |
NOT_CC_INTERP(push(state)); |
1 | 1397 |
get_thread(rbx); |
1398 |
get_method(rcx); |
|
1399 |
call_VM_leaf( |
|
1400 |
CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), |
|
1401 |
rbx, rcx); |
|
1066 | 1402 |
NOT_CC_INTERP(pop(state)); |
1 | 1403 |
} |
1404 |
} |
|
6453 | 1405 |
|
1406 |
// Jump if ((*counter_addr += increment) & mask) satisfies the condition. |
|
1407 |
void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr, |
|
1408 |
int increment, int mask, |
|
1409 |
Register scratch, bool preloaded, |
|
1410 |
Condition cond, Label* where) { |
|
1411 |
if (!preloaded) { |
|
1412 |
movl(scratch, counter_addr); |
|
1413 |
} |
|
1414 |
incrementl(scratch, increment); |
|
1415 |
movl(counter_addr, scratch); |
|
1416 |
andl(scratch, mask); |
|
1417 |
jcc(cond, *where); |
|
1418 |
} |