author | iveresov |
Tue, 29 Mar 2011 22:25:17 -0700 | |
changeset 8876 | f82367de21f5 |
parent 8874 | b2030880129c |
child 10004 | 190e88f7edd1 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2003, 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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||
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#include "precompiled.hpp" |
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#include "asm/assembler.hpp" |
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#include "assembler_x86.inline.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "nativeInst_x86.hpp" |
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#include "oops/instanceOop.hpp" |
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#include "oops/methodOop.hpp" |
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#include "oops/objArrayKlass.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "prims/methodHandles.hpp" |
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#include "runtime/frame.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#include "runtime/stubCodeGenerator.hpp" |
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#include "runtime/stubRoutines.hpp" |
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#include "utilities/top.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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#ifdef COMPILER2 |
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#include "opto/runtime.hpp" |
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#endif |
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// Declaration and definition of StubGenerator (no .hpp file). |
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// For a more detailed description of the stub routine structure |
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// see the comment in stubRoutines.hpp |
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#define __ _masm-> |
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#define TIMES_OOP (UseCompressedOops ? Address::times_4 : Address::times_8) |
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#define a__ ((Assembler*)_masm)-> |
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#ifdef PRODUCT |
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#define BLOCK_COMMENT(str) /* nothing */ |
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#else |
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#define BLOCK_COMMENT(str) __ block_comment(str) |
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#endif |
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#define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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const int MXCSR_MASK = 0xFFC0; // Mask out any pending exceptions |
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// Stub Code definitions |
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static address handle_unsafe_access() { |
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JavaThread* thread = JavaThread::current(); |
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address pc = thread->saved_exception_pc(); |
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// pc is the instruction which we must emulate |
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// doing a no-op is fine: return garbage from the load |
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// therefore, compute npc |
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address npc = Assembler::locate_next_instruction(pc); |
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// request an async exception |
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thread->set_pending_unsafe_access_error(); |
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// return address of next instruction to execute |
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return npc; |
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} |
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class StubGenerator: public StubCodeGenerator { |
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private: |
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#ifdef PRODUCT |
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#define inc_counter_np(counter) (0) |
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#else |
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void inc_counter_np_(int& counter) { |
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__ incrementl(ExternalAddress((address)&counter)); |
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} |
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#define inc_counter_np(counter) \ |
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BLOCK_COMMENT("inc_counter " #counter); \ |
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inc_counter_np_(counter); |
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#endif |
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// Call stubs are used to call Java from C |
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// |
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// Linux Arguments: |
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// c_rarg0: call wrapper address address |
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// c_rarg1: result address |
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// c_rarg2: result type BasicType |
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// c_rarg3: method methodOop |
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// c_rarg4: (interpreter) entry point address |
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// c_rarg5: parameters intptr_t* |
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// 16(rbp): parameter size (in words) int |
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// 24(rbp): thread Thread* |
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// |
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// [ return_from_Java ] <--- rsp |
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// [ argument word n ] |
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// ... |
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// -12 [ argument word 1 ] |
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// -11 [ saved r15 ] <--- rsp_after_call |
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// -10 [ saved r14 ] |
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// -9 [ saved r13 ] |
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// -8 [ saved r12 ] |
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// -7 [ saved rbx ] |
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// -6 [ call wrapper ] |
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// -5 [ result ] |
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// -4 [ result type ] |
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// -3 [ method ] |
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// -2 [ entry point ] |
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// -1 [ parameters ] |
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// 0 [ saved rbp ] <--- rbp |
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// 1 [ return address ] |
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// 2 [ parameter size ] |
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// 3 [ thread ] |
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// |
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// Windows Arguments: |
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// c_rarg0: call wrapper address address |
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// c_rarg1: result address |
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// c_rarg2: result type BasicType |
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// c_rarg3: method methodOop |
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// 48(rbp): (interpreter) entry point address |
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// 56(rbp): parameters intptr_t* |
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// 64(rbp): parameter size (in words) int |
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// 72(rbp): thread Thread* |
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// |
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// [ return_from_Java ] <--- rsp |
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// [ argument word n ] |
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// ... |
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// -28 [ argument word 1 ] |
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// -27 [ saved xmm15 ] <--- rsp_after_call |
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// [ saved xmm7-xmm14 ] |
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// -9 [ saved xmm6 ] (each xmm register takes 2 slots) |
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// -7 [ saved r15 ] |
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// -6 [ saved r14 ] |
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// -5 [ saved r13 ] |
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// -4 [ saved r12 ] |
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// -3 [ saved rdi ] |
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// -2 [ saved rsi ] |
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// -1 [ saved rbx ] |
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// 0 [ saved rbp ] <--- rbp |
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// 1 [ return address ] |
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// 2 [ call wrapper ] |
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// 3 [ result ] |
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// 4 [ result type ] |
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// 5 [ method ] |
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// 6 [ entry point ] |
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// 7 [ parameters ] |
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// 8 [ parameter size ] |
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// 9 [ thread ] |
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// |
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// Windows reserves the callers stack space for arguments 1-4. |
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// We spill c_rarg0-c_rarg3 to this space. |
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// Call stub stack layout word offsets from rbp |
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enum call_stub_layout { |
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#ifdef _WIN64 |
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xmm_save_first = 6, // save from xmm6 |
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xmm_save_last = 15, // to xmm15 |
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xmm_save_base = -9, |
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rsp_after_call_off = xmm_save_base - 2 * (xmm_save_last - xmm_save_first), // -27 |
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r15_off = -7, |
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r14_off = -6, |
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r13_off = -5, |
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r12_off = -4, |
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rdi_off = -3, |
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rsi_off = -2, |
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rbx_off = -1, |
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rbp_off = 0, |
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retaddr_off = 1, |
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call_wrapper_off = 2, |
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result_off = 3, |
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result_type_off = 4, |
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method_off = 5, |
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entry_point_off = 6, |
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parameters_off = 7, |
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parameter_size_off = 8, |
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thread_off = 9 |
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#else |
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rsp_after_call_off = -12, |
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mxcsr_off = rsp_after_call_off, |
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r15_off = -11, |
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r14_off = -10, |
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r13_off = -9, |
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r12_off = -8, |
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rbx_off = -7, |
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call_wrapper_off = -6, |
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result_off = -5, |
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result_type_off = -4, |
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method_off = -3, |
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entry_point_off = -2, |
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parameters_off = -1, |
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rbp_off = 0, |
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retaddr_off = 1, |
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parameter_size_off = 2, |
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thread_off = 3 |
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#endif |
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}; |
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#ifdef _WIN64 |
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Address xmm_save(int reg) { |
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assert(reg >= xmm_save_first && reg <= xmm_save_last, "XMM register number out of range"); |
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return Address(rbp, (xmm_save_base - (reg - xmm_save_first) * 2) * wordSize); |
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} |
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#endif |
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address generate_call_stub(address& return_address) { |
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assert((int)frame::entry_frame_after_call_words == -(int)rsp_after_call_off + 1 && |
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(int)frame::entry_frame_call_wrapper_offset == (int)call_wrapper_off, |
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"adjust this code"); |
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StubCodeMark mark(this, "StubRoutines", "call_stub"); |
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address start = __ pc(); |
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// same as in generate_catch_exception()! |
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const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); |
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const Address call_wrapper (rbp, call_wrapper_off * wordSize); |
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const Address result (rbp, result_off * wordSize); |
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const Address result_type (rbp, result_type_off * wordSize); |
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const Address method (rbp, method_off * wordSize); |
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const Address entry_point (rbp, entry_point_off * wordSize); |
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const Address parameters (rbp, parameters_off * wordSize); |
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const Address parameter_size(rbp, parameter_size_off * wordSize); |
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// same as in generate_catch_exception()! |
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const Address thread (rbp, thread_off * wordSize); |
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const Address r15_save(rbp, r15_off * wordSize); |
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const Address r14_save(rbp, r14_off * wordSize); |
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const Address r13_save(rbp, r13_off * wordSize); |
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const Address r12_save(rbp, r12_off * wordSize); |
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const Address rbx_save(rbp, rbx_off * wordSize); |
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250 |
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// stub code |
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252 |
__ enter(); |
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1066 | 253 |
__ subptr(rsp, -rsp_after_call_off * wordSize); |
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// save register parameters |
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#ifndef _WIN64 |
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1066 | 257 |
__ movptr(parameters, c_rarg5); // parameters |
258 |
__ movptr(entry_point, c_rarg4); // entry_point |
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1 | 259 |
#endif |
260 |
||
1066 | 261 |
__ movptr(method, c_rarg3); // method |
262 |
__ movl(result_type, c_rarg2); // result type |
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263 |
__ movptr(result, c_rarg1); // result |
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264 |
__ movptr(call_wrapper, c_rarg0); // call wrapper |
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1 | 265 |
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266 |
// save regs belonging to calling function |
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1066 | 267 |
__ movptr(rbx_save, rbx); |
268 |
__ movptr(r12_save, r12); |
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269 |
__ movptr(r13_save, r13); |
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270 |
__ movptr(r14_save, r14); |
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271 |
__ movptr(r15_save, r15); |
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1 | 272 |
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for (int i = 6; i <= 15; i++) { |
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__ movdqu(xmm_save(i), as_XMMRegister(i)); |
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} |
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1 | 277 |
const Address rdi_save(rbp, rdi_off * wordSize); |
278 |
const Address rsi_save(rbp, rsi_off * wordSize); |
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279 |
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1066 | 280 |
__ movptr(rsi_save, rsi); |
281 |
__ movptr(rdi_save, rdi); |
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1 | 282 |
#else |
283 |
const Address mxcsr_save(rbp, mxcsr_off * wordSize); |
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284 |
{ |
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285 |
Label skip_ldmx; |
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286 |
__ stmxcsr(mxcsr_save); |
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287 |
__ movl(rax, mxcsr_save); |
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288 |
__ andl(rax, MXCSR_MASK); // Only check control and mask bits |
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1066 | 289 |
ExternalAddress mxcsr_std(StubRoutines::x86::mxcsr_std()); |
1 | 290 |
__ cmp32(rax, mxcsr_std); |
291 |
__ jcc(Assembler::equal, skip_ldmx); |
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292 |
__ ldmxcsr(mxcsr_std); |
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293 |
__ bind(skip_ldmx); |
|
294 |
} |
|
295 |
#endif |
|
296 |
||
297 |
// Load up thread register |
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1066 | 298 |
__ movptr(r15_thread, thread); |
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__ reinit_heapbase(); |
1 | 300 |
|
301 |
#ifdef ASSERT |
|
302 |
// make sure we have no pending exceptions |
|
303 |
{ |
|
304 |
Label L; |
|
1066 | 305 |
__ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
1 | 306 |
__ jcc(Assembler::equal, L); |
307 |
__ stop("StubRoutines::call_stub: entered with pending exception"); |
|
308 |
__ bind(L); |
|
309 |
} |
|
310 |
#endif |
|
311 |
||
312 |
// pass parameters if any |
|
313 |
BLOCK_COMMENT("pass parameters if any"); |
|
314 |
Label parameters_done; |
|
315 |
__ movl(c_rarg3, parameter_size); |
|
316 |
__ testl(c_rarg3, c_rarg3); |
|
317 |
__ jcc(Assembler::zero, parameters_done); |
|
318 |
||
319 |
Label loop; |
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1066 | 320 |
__ movptr(c_rarg2, parameters); // parameter pointer |
321 |
__ movl(c_rarg1, c_rarg3); // parameter counter is in c_rarg1 |
|
1 | 322 |
__ BIND(loop); |
1066 | 323 |
__ movptr(rax, Address(c_rarg2, 0));// get parameter |
324 |
__ addptr(c_rarg2, wordSize); // advance to next parameter |
|
325 |
__ decrementl(c_rarg1); // decrement counter |
|
326 |
__ push(rax); // pass parameter |
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1 | 327 |
__ jcc(Assembler::notZero, loop); |
328 |
||
329 |
// call Java function |
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330 |
__ BIND(parameters_done); |
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1066 | 331 |
__ movptr(rbx, method); // get methodOop |
332 |
__ movptr(c_rarg1, entry_point); // get entry_point |
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333 |
__ mov(r13, rsp); // set sender sp |
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1 | 334 |
BLOCK_COMMENT("call Java function"); |
335 |
__ call(c_rarg1); |
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336 |
||
337 |
BLOCK_COMMENT("call_stub_return_address:"); |
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338 |
return_address = __ pc(); |
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339 |
||
340 |
// store result depending on type (everything that is not |
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341 |
// T_OBJECT, T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT) |
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1066 | 342 |
__ movptr(c_rarg0, result); |
1 | 343 |
Label is_long, is_float, is_double, exit; |
344 |
__ movl(c_rarg1, result_type); |
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345 |
__ cmpl(c_rarg1, T_OBJECT); |
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346 |
__ jcc(Assembler::equal, is_long); |
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347 |
__ cmpl(c_rarg1, T_LONG); |
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348 |
__ jcc(Assembler::equal, is_long); |
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349 |
__ cmpl(c_rarg1, T_FLOAT); |
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350 |
__ jcc(Assembler::equal, is_float); |
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351 |
__ cmpl(c_rarg1, T_DOUBLE); |
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352 |
__ jcc(Assembler::equal, is_double); |
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353 |
||
354 |
// handle T_INT case |
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355 |
__ movl(Address(c_rarg0, 0), rax); |
|
356 |
||
357 |
__ BIND(exit); |
|
358 |
||
359 |
// pop parameters |
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1066 | 360 |
__ lea(rsp, rsp_after_call); |
1 | 361 |
|
362 |
#ifdef ASSERT |
|
363 |
// verify that threads correspond |
|
364 |
{ |
|
365 |
Label L, S; |
|
1066 | 366 |
__ cmpptr(r15_thread, thread); |
1 | 367 |
__ jcc(Assembler::notEqual, S); |
368 |
__ get_thread(rbx); |
|
1066 | 369 |
__ cmpptr(r15_thread, rbx); |
1 | 370 |
__ jcc(Assembler::equal, L); |
371 |
__ bind(S); |
|
372 |
__ jcc(Assembler::equal, L); |
|
373 |
__ stop("StubRoutines::call_stub: threads must correspond"); |
|
374 |
__ bind(L); |
|
375 |
} |
|
376 |
#endif |
|
377 |
||
378 |
// restore regs belonging to calling function |
|
8874
b2030880129c
6741940: Nonvolatile XMM registers not preserved across JNI calls
iveresov
parents:
8498
diff
changeset
|
379 |
#ifdef _WIN64 |
b2030880129c
6741940: Nonvolatile XMM registers not preserved across JNI calls
iveresov
parents:
8498
diff
changeset
|
380 |
for (int i = 15; i >= 6; i--) { |
b2030880129c
6741940: Nonvolatile XMM registers not preserved across JNI calls
iveresov
parents:
8498
diff
changeset
|
381 |
__ movdqu(as_XMMRegister(i), xmm_save(i)); |
b2030880129c
6741940: Nonvolatile XMM registers not preserved across JNI calls
iveresov
parents:
8498
diff
changeset
|
382 |
} |
b2030880129c
6741940: Nonvolatile XMM registers not preserved across JNI calls
iveresov
parents:
8498
diff
changeset
|
383 |
#endif |
1066 | 384 |
__ movptr(r15, r15_save); |
385 |
__ movptr(r14, r14_save); |
|
386 |
__ movptr(r13, r13_save); |
|
387 |
__ movptr(r12, r12_save); |
|
388 |
__ movptr(rbx, rbx_save); |
|
1 | 389 |
|
390 |
#ifdef _WIN64 |
|
1066 | 391 |
__ movptr(rdi, rdi_save); |
392 |
__ movptr(rsi, rsi_save); |
|
1 | 393 |
#else |
394 |
__ ldmxcsr(mxcsr_save); |
|
395 |
#endif |
|
396 |
||
397 |
// restore rsp |
|
1066 | 398 |
__ addptr(rsp, -rsp_after_call_off * wordSize); |
1 | 399 |
|
400 |
// return |
|
1066 | 401 |
__ pop(rbp); |
1 | 402 |
__ ret(0); |
403 |
||
404 |
// handle return types different from T_INT |
|
405 |
__ BIND(is_long); |
|
406 |
__ movq(Address(c_rarg0, 0), rax); |
|
407 |
__ jmp(exit); |
|
408 |
||
409 |
__ BIND(is_float); |
|
410 |
__ movflt(Address(c_rarg0, 0), xmm0); |
|
411 |
__ jmp(exit); |
|
412 |
||
413 |
__ BIND(is_double); |
|
414 |
__ movdbl(Address(c_rarg0, 0), xmm0); |
|
415 |
__ jmp(exit); |
|
416 |
||
417 |
return start; |
|
418 |
} |
|
419 |
||
420 |
// Return point for a Java call if there's an exception thrown in |
|
421 |
// Java code. The exception is caught and transformed into a |
|
422 |
// pending exception stored in JavaThread that can be tested from |
|
423 |
// within the VM. |
|
424 |
// |
|
425 |
// Note: Usually the parameters are removed by the callee. In case |
|
426 |
// of an exception crossing an activation frame boundary, that is |
|
427 |
// not the case if the callee is compiled code => need to setup the |
|
428 |
// rsp. |
|
429 |
// |
|
430 |
// rax: exception oop |
|
431 |
||
432 |
address generate_catch_exception() { |
|
433 |
StubCodeMark mark(this, "StubRoutines", "catch_exception"); |
|
434 |
address start = __ pc(); |
|
435 |
||
436 |
// same as in generate_call_stub(): |
|
437 |
const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); |
|
438 |
const Address thread (rbp, thread_off * wordSize); |
|
439 |
||
440 |
#ifdef ASSERT |
|
441 |
// verify that threads correspond |
|
442 |
{ |
|
443 |
Label L, S; |
|
1066 | 444 |
__ cmpptr(r15_thread, thread); |
1 | 445 |
__ jcc(Assembler::notEqual, S); |
446 |
__ get_thread(rbx); |
|
1066 | 447 |
__ cmpptr(r15_thread, rbx); |
1 | 448 |
__ jcc(Assembler::equal, L); |
449 |
__ bind(S); |
|
450 |
__ stop("StubRoutines::catch_exception: threads must correspond"); |
|
451 |
__ bind(L); |
|
452 |
} |
|
453 |
#endif |
|
454 |
||
455 |
// set pending exception |
|
456 |
__ verify_oop(rax); |
|
457 |
||
1066 | 458 |
__ movptr(Address(r15_thread, Thread::pending_exception_offset()), rax); |
1 | 459 |
__ lea(rscratch1, ExternalAddress((address)__FILE__)); |
1066 | 460 |
__ movptr(Address(r15_thread, Thread::exception_file_offset()), rscratch1); |
1 | 461 |
__ movl(Address(r15_thread, Thread::exception_line_offset()), (int) __LINE__); |
462 |
||
463 |
// complete return to VM |
|
464 |
assert(StubRoutines::_call_stub_return_address != NULL, |
|
465 |
"_call_stub_return_address must have been generated before"); |
|
466 |
__ jump(RuntimeAddress(StubRoutines::_call_stub_return_address)); |
|
467 |
||
468 |
return start; |
|
469 |
} |
|
470 |
||
471 |
// Continuation point for runtime calls returning with a pending |
|
472 |
// exception. The pending exception check happened in the runtime |
|
473 |
// or native call stub. The pending exception in Thread is |
|
474 |
// converted into a Java-level exception. |
|
475 |
// |
|
476 |
// Contract with Java-level exception handlers: |
|
477 |
// rax: exception |
|
478 |
// rdx: throwing pc |
|
479 |
// |
|
480 |
// NOTE: At entry of this stub, exception-pc must be on stack !! |
|
481 |
||
482 |
address generate_forward_exception() { |
|
483 |
StubCodeMark mark(this, "StubRoutines", "forward exception"); |
|
484 |
address start = __ pc(); |
|
485 |
||
486 |
// Upon entry, the sp points to the return address returning into |
|
487 |
// Java (interpreted or compiled) code; i.e., the return address |
|
488 |
// becomes the throwing pc. |
|
489 |
// |
|
490 |
// Arguments pushed before the runtime call are still on the stack |
|
491 |
// but the exception handler will reset the stack pointer -> |
|
492 |
// ignore them. A potential result in registers can be ignored as |
|
493 |
// well. |
|
494 |
||
495 |
#ifdef ASSERT |
|
496 |
// make sure this code is only executed if there is a pending exception |
|
497 |
{ |
|
498 |
Label L; |
|
1066 | 499 |
__ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL); |
1 | 500 |
__ jcc(Assembler::notEqual, L); |
501 |
__ stop("StubRoutines::forward exception: no pending exception (1)"); |
|
502 |
__ bind(L); |
|
503 |
} |
|
504 |
#endif |
|
505 |
||
506 |
// compute exception handler into rbx |
|
1066 | 507 |
__ movptr(c_rarg0, Address(rsp, 0)); |
1 | 508 |
BLOCK_COMMENT("call exception_handler_for_return_address"); |
509 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, |
|
510 |
SharedRuntime::exception_handler_for_return_address), |
|
5046 | 511 |
r15_thread, c_rarg0); |
1066 | 512 |
__ mov(rbx, rax); |
1 | 513 |
|
514 |
// setup rax & rdx, remove return address & clear pending exception |
|
1066 | 515 |
__ pop(rdx); |
516 |
__ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); |
|
1888
bbf498fb4354
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
1437
diff
changeset
|
517 |
__ movptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
1 | 518 |
|
519 |
#ifdef ASSERT |
|
520 |
// make sure exception is set |
|
521 |
{ |
|
522 |
Label L; |
|
1066 | 523 |
__ testptr(rax, rax); |
1 | 524 |
__ jcc(Assembler::notEqual, L); |
525 |
__ stop("StubRoutines::forward exception: no pending exception (2)"); |
|
526 |
__ bind(L); |
|
527 |
} |
|
528 |
#endif |
|
529 |
||
530 |
// continue at exception handler (return address removed) |
|
531 |
// rax: exception |
|
532 |
// rbx: exception handler |
|
533 |
// rdx: throwing pc |
|
534 |
__ verify_oop(rax); |
|
535 |
__ jmp(rbx); |
|
536 |
||
537 |
return start; |
|
538 |
} |
|
539 |
||
540 |
// Support for jint atomic::xchg(jint exchange_value, volatile jint* dest) |
|
541 |
// |
|
542 |
// Arguments : |
|
543 |
// c_rarg0: exchange_value |
|
544 |
// c_rarg0: dest |
|
545 |
// |
|
546 |
// Result: |
|
547 |
// *dest <- ex, return (orig *dest) |
|
548 |
address generate_atomic_xchg() { |
|
549 |
StubCodeMark mark(this, "StubRoutines", "atomic_xchg"); |
|
550 |
address start = __ pc(); |
|
551 |
||
552 |
__ movl(rax, c_rarg0); // Copy to eax we need a return value anyhow |
|
553 |
__ xchgl(rax, Address(c_rarg1, 0)); // automatic LOCK |
|
554 |
__ ret(0); |
|
555 |
||
556 |
return start; |
|
557 |
} |
|
558 |
||
559 |
// Support for intptr_t atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) |
|
560 |
// |
|
561 |
// Arguments : |
|
562 |
// c_rarg0: exchange_value |
|
563 |
// c_rarg1: dest |
|
564 |
// |
|
565 |
// Result: |
|
566 |
// *dest <- ex, return (orig *dest) |
|
567 |
address generate_atomic_xchg_ptr() { |
|
568 |
StubCodeMark mark(this, "StubRoutines", "atomic_xchg_ptr"); |
|
569 |
address start = __ pc(); |
|
570 |
||
1066 | 571 |
__ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
572 |
__ xchgptr(rax, Address(c_rarg1, 0)); // automatic LOCK |
|
1 | 573 |
__ ret(0); |
574 |
||
575 |
return start; |
|
576 |
} |
|
577 |
||
578 |
// Support for jint atomic::atomic_cmpxchg(jint exchange_value, volatile jint* dest, |
|
579 |
// jint compare_value) |
|
580 |
// |
|
581 |
// Arguments : |
|
582 |
// c_rarg0: exchange_value |
|
583 |
// c_rarg1: dest |
|
584 |
// c_rarg2: compare_value |
|
585 |
// |
|
586 |
// Result: |
|
587 |
// if ( compare_value == *dest ) { |
|
588 |
// *dest = exchange_value |
|
589 |
// return compare_value; |
|
590 |
// else |
|
591 |
// return *dest; |
|
592 |
address generate_atomic_cmpxchg() { |
|
593 |
StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg"); |
|
594 |
address start = __ pc(); |
|
595 |
||
596 |
__ movl(rax, c_rarg2); |
|
597 |
if ( os::is_MP() ) __ lock(); |
|
598 |
__ cmpxchgl(c_rarg0, Address(c_rarg1, 0)); |
|
599 |
__ ret(0); |
|
600 |
||
601 |
return start; |
|
602 |
} |
|
603 |
||
604 |
// Support for jint atomic::atomic_cmpxchg_long(jlong exchange_value, |
|
605 |
// volatile jlong* dest, |
|
606 |
// jlong compare_value) |
|
607 |
// Arguments : |
|
608 |
// c_rarg0: exchange_value |
|
609 |
// c_rarg1: dest |
|
610 |
// c_rarg2: compare_value |
|
611 |
// |
|
612 |
// Result: |
|
613 |
// if ( compare_value == *dest ) { |
|
614 |
// *dest = exchange_value |
|
615 |
// return compare_value; |
|
616 |
// else |
|
617 |
// return *dest; |
|
618 |
address generate_atomic_cmpxchg_long() { |
|
619 |
StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long"); |
|
620 |
address start = __ pc(); |
|
621 |
||
622 |
__ movq(rax, c_rarg2); |
|
623 |
if ( os::is_MP() ) __ lock(); |
|
624 |
__ cmpxchgq(c_rarg0, Address(c_rarg1, 0)); |
|
625 |
__ ret(0); |
|
626 |
||
627 |
return start; |
|
628 |
} |
|
629 |
||
630 |
// Support for jint atomic::add(jint add_value, volatile jint* dest) |
|
631 |
// |
|
632 |
// Arguments : |
|
633 |
// c_rarg0: add_value |
|
634 |
// c_rarg1: dest |
|
635 |
// |
|
636 |
// Result: |
|
637 |
// *dest += add_value |
|
638 |
// return *dest; |
|
639 |
address generate_atomic_add() { |
|
640 |
StubCodeMark mark(this, "StubRoutines", "atomic_add"); |
|
641 |
address start = __ pc(); |
|
642 |
||
643 |
__ movl(rax, c_rarg0); |
|
644 |
if ( os::is_MP() ) __ lock(); |
|
645 |
__ xaddl(Address(c_rarg1, 0), c_rarg0); |
|
646 |
__ addl(rax, c_rarg0); |
|
647 |
__ ret(0); |
|
648 |
||
649 |
return start; |
|
650 |
} |
|
651 |
||
652 |
// Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) |
|
653 |
// |
|
654 |
// Arguments : |
|
655 |
// c_rarg0: add_value |
|
656 |
// c_rarg1: dest |
|
657 |
// |
|
658 |
// Result: |
|
659 |
// *dest += add_value |
|
660 |
// return *dest; |
|
661 |
address generate_atomic_add_ptr() { |
|
662 |
StubCodeMark mark(this, "StubRoutines", "atomic_add_ptr"); |
|
663 |
address start = __ pc(); |
|
664 |
||
1066 | 665 |
__ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
1 | 666 |
if ( os::is_MP() ) __ lock(); |
1066 | 667 |
__ xaddptr(Address(c_rarg1, 0), c_rarg0); |
668 |
__ addptr(rax, c_rarg0); |
|
1 | 669 |
__ ret(0); |
670 |
||
671 |
return start; |
|
672 |
} |
|
673 |
||
674 |
// Support for intptr_t OrderAccess::fence() |
|
675 |
// |
|
676 |
// Arguments : |
|
677 |
// |
|
678 |
// Result: |
|
679 |
address generate_orderaccess_fence() { |
|
680 |
StubCodeMark mark(this, "StubRoutines", "orderaccess_fence"); |
|
681 |
address start = __ pc(); |
|
2338
a8660a1b709b
6822204: volatile fences should prefer lock:addl to actual mfence instructions
never
parents:
2259
diff
changeset
|
682 |
__ membar(Assembler::StoreLoad); |
1 | 683 |
__ ret(0); |
684 |
||
685 |
return start; |
|
686 |
} |
|
687 |
||
688 |
// Support for intptr_t get_previous_fp() |
|
689 |
// |
|
690 |
// This routine is used to find the previous frame pointer for the |
|
691 |
// caller (current_frame_guess). This is used as part of debugging |
|
692 |
// ps() is seemingly lost trying to find frames. |
|
693 |
// This code assumes that caller current_frame_guess) has a frame. |
|
694 |
address generate_get_previous_fp() { |
|
695 |
StubCodeMark mark(this, "StubRoutines", "get_previous_fp"); |
|
696 |
const Address old_fp(rbp, 0); |
|
697 |
const Address older_fp(rax, 0); |
|
698 |
address start = __ pc(); |
|
699 |
||
700 |
__ enter(); |
|
1066 | 701 |
__ movptr(rax, old_fp); // callers fp |
702 |
__ movptr(rax, older_fp); // the frame for ps() |
|
703 |
__ pop(rbp); |
|
1 | 704 |
__ ret(0); |
705 |
||
706 |
return start; |
|
707 |
} |
|
708 |
||
709 |
//---------------------------------------------------------------------------------------------------- |
|
710 |
// Support for void verify_mxcsr() |
|
711 |
// |
|
712 |
// This routine is used with -Xcheck:jni to verify that native |
|
713 |
// JNI code does not return to Java code without restoring the |
|
714 |
// MXCSR register to our expected state. |
|
715 |
||
716 |
address generate_verify_mxcsr() { |
|
717 |
StubCodeMark mark(this, "StubRoutines", "verify_mxcsr"); |
|
718 |
address start = __ pc(); |
|
719 |
||
720 |
const Address mxcsr_save(rsp, 0); |
|
721 |
||
722 |
if (CheckJNICalls) { |
|
723 |
Label ok_ret; |
|
1066 | 724 |
__ push(rax); |
725 |
__ subptr(rsp, wordSize); // allocate a temp location |
|
1 | 726 |
__ stmxcsr(mxcsr_save); |
727 |
__ movl(rax, mxcsr_save); |
|
728 |
__ andl(rax, MXCSR_MASK); // Only check control and mask bits |
|
1066 | 729 |
__ cmpl(rax, *(int *)(StubRoutines::x86::mxcsr_std())); |
1 | 730 |
__ jcc(Assembler::equal, ok_ret); |
731 |
||
732 |
__ warn("MXCSR changed by native JNI code, use -XX:+RestoreMXCSROnJNICall"); |
|
733 |
||
1066 | 734 |
__ ldmxcsr(ExternalAddress(StubRoutines::x86::mxcsr_std())); |
1 | 735 |
|
736 |
__ bind(ok_ret); |
|
1066 | 737 |
__ addptr(rsp, wordSize); |
738 |
__ pop(rax); |
|
1 | 739 |
} |
740 |
||
741 |
__ ret(0); |
|
742 |
||
743 |
return start; |
|
744 |
} |
|
745 |
||
746 |
address generate_f2i_fixup() { |
|
747 |
StubCodeMark mark(this, "StubRoutines", "f2i_fixup"); |
|
748 |
Address inout(rsp, 5 * wordSize); // return address + 4 saves |
|
749 |
||
750 |
address start = __ pc(); |
|
751 |
||
752 |
Label L; |
|
753 |
||
1066 | 754 |
__ push(rax); |
755 |
__ push(c_rarg3); |
|
756 |
__ push(c_rarg2); |
|
757 |
__ push(c_rarg1); |
|
1 | 758 |
|
759 |
__ movl(rax, 0x7f800000); |
|
760 |
__ xorl(c_rarg3, c_rarg3); |
|
761 |
__ movl(c_rarg2, inout); |
|
762 |
__ movl(c_rarg1, c_rarg2); |
|
763 |
__ andl(c_rarg1, 0x7fffffff); |
|
764 |
__ cmpl(rax, c_rarg1); // NaN? -> 0 |
|
765 |
__ jcc(Assembler::negative, L); |
|
766 |
__ testl(c_rarg2, c_rarg2); // signed ? min_jint : max_jint |
|
767 |
__ movl(c_rarg3, 0x80000000); |
|
768 |
__ movl(rax, 0x7fffffff); |
|
769 |
__ cmovl(Assembler::positive, c_rarg3, rax); |
|
770 |
||
771 |
__ bind(L); |
|
1066 | 772 |
__ movptr(inout, c_rarg3); |
773 |
||
774 |
__ pop(c_rarg1); |
|
775 |
__ pop(c_rarg2); |
|
776 |
__ pop(c_rarg3); |
|
777 |
__ pop(rax); |
|
1 | 778 |
|
779 |
__ ret(0); |
|
780 |
||
781 |
return start; |
|
782 |
} |
|
783 |
||
784 |
address generate_f2l_fixup() { |
|
785 |
StubCodeMark mark(this, "StubRoutines", "f2l_fixup"); |
|
786 |
Address inout(rsp, 5 * wordSize); // return address + 4 saves |
|
787 |
address start = __ pc(); |
|
788 |
||
789 |
Label L; |
|
790 |
||
1066 | 791 |
__ push(rax); |
792 |
__ push(c_rarg3); |
|
793 |
__ push(c_rarg2); |
|
794 |
__ push(c_rarg1); |
|
1 | 795 |
|
796 |
__ movl(rax, 0x7f800000); |
|
797 |
__ xorl(c_rarg3, c_rarg3); |
|
798 |
__ movl(c_rarg2, inout); |
|
799 |
__ movl(c_rarg1, c_rarg2); |
|
800 |
__ andl(c_rarg1, 0x7fffffff); |
|
801 |
__ cmpl(rax, c_rarg1); // NaN? -> 0 |
|
802 |
__ jcc(Assembler::negative, L); |
|
803 |
__ testl(c_rarg2, c_rarg2); // signed ? min_jlong : max_jlong |
|
804 |
__ mov64(c_rarg3, 0x8000000000000000); |
|
805 |
__ mov64(rax, 0x7fffffffffffffff); |
|
1066 | 806 |
__ cmov(Assembler::positive, c_rarg3, rax); |
1 | 807 |
|
808 |
__ bind(L); |
|
1066 | 809 |
__ movptr(inout, c_rarg3); |
810 |
||
811 |
__ pop(c_rarg1); |
|
812 |
__ pop(c_rarg2); |
|
813 |
__ pop(c_rarg3); |
|
814 |
__ pop(rax); |
|
1 | 815 |
|
816 |
__ ret(0); |
|
817 |
||
818 |
return start; |
|
819 |
} |
|
820 |
||
821 |
address generate_d2i_fixup() { |
|
822 |
StubCodeMark mark(this, "StubRoutines", "d2i_fixup"); |
|
823 |
Address inout(rsp, 6 * wordSize); // return address + 5 saves |
|
824 |
||
825 |
address start = __ pc(); |
|
826 |
||
827 |
Label L; |
|
828 |
||
1066 | 829 |
__ push(rax); |
830 |
__ push(c_rarg3); |
|
831 |
__ push(c_rarg2); |
|
832 |
__ push(c_rarg1); |
|
833 |
__ push(c_rarg0); |
|
1 | 834 |
|
835 |
__ movl(rax, 0x7ff00000); |
|
836 |
__ movq(c_rarg2, inout); |
|
837 |
__ movl(c_rarg3, c_rarg2); |
|
1066 | 838 |
__ mov(c_rarg1, c_rarg2); |
839 |
__ mov(c_rarg0, c_rarg2); |
|
1 | 840 |
__ negl(c_rarg3); |
1066 | 841 |
__ shrptr(c_rarg1, 0x20); |
1 | 842 |
__ orl(c_rarg3, c_rarg2); |
843 |
__ andl(c_rarg1, 0x7fffffff); |
|
844 |
__ xorl(c_rarg2, c_rarg2); |
|
845 |
__ shrl(c_rarg3, 0x1f); |
|
846 |
__ orl(c_rarg1, c_rarg3); |
|
847 |
__ cmpl(rax, c_rarg1); |
|
848 |
__ jcc(Assembler::negative, L); // NaN -> 0 |
|
1066 | 849 |
__ testptr(c_rarg0, c_rarg0); // signed ? min_jint : max_jint |
1 | 850 |
__ movl(c_rarg2, 0x80000000); |
851 |
__ movl(rax, 0x7fffffff); |
|
1066 | 852 |
__ cmov(Assembler::positive, c_rarg2, rax); |
1 | 853 |
|
854 |
__ bind(L); |
|
1066 | 855 |
__ movptr(inout, c_rarg2); |
856 |
||
857 |
__ pop(c_rarg0); |
|
858 |
__ pop(c_rarg1); |
|
859 |
__ pop(c_rarg2); |
|
860 |
__ pop(c_rarg3); |
|
861 |
__ pop(rax); |
|
1 | 862 |
|
863 |
__ ret(0); |
|
864 |
||
865 |
return start; |
|
866 |
} |
|
867 |
||
868 |
address generate_d2l_fixup() { |
|
869 |
StubCodeMark mark(this, "StubRoutines", "d2l_fixup"); |
|
870 |
Address inout(rsp, 6 * wordSize); // return address + 5 saves |
|
871 |
||
872 |
address start = __ pc(); |
|
873 |
||
874 |
Label L; |
|
875 |
||
1066 | 876 |
__ push(rax); |
877 |
__ push(c_rarg3); |
|
878 |
__ push(c_rarg2); |
|
879 |
__ push(c_rarg1); |
|
880 |
__ push(c_rarg0); |
|
1 | 881 |
|
882 |
__ movl(rax, 0x7ff00000); |
|
883 |
__ movq(c_rarg2, inout); |
|
884 |
__ movl(c_rarg3, c_rarg2); |
|
1066 | 885 |
__ mov(c_rarg1, c_rarg2); |
886 |
__ mov(c_rarg0, c_rarg2); |
|
1 | 887 |
__ negl(c_rarg3); |
1066 | 888 |
__ shrptr(c_rarg1, 0x20); |
1 | 889 |
__ orl(c_rarg3, c_rarg2); |
890 |
__ andl(c_rarg1, 0x7fffffff); |
|
891 |
__ xorl(c_rarg2, c_rarg2); |
|
892 |
__ shrl(c_rarg3, 0x1f); |
|
893 |
__ orl(c_rarg1, c_rarg3); |
|
894 |
__ cmpl(rax, c_rarg1); |
|
895 |
__ jcc(Assembler::negative, L); // NaN -> 0 |
|
896 |
__ testq(c_rarg0, c_rarg0); // signed ? min_jlong : max_jlong |
|
897 |
__ mov64(c_rarg2, 0x8000000000000000); |
|
898 |
__ mov64(rax, 0x7fffffffffffffff); |
|
899 |
__ cmovq(Assembler::positive, c_rarg2, rax); |
|
900 |
||
901 |
__ bind(L); |
|
902 |
__ movq(inout, c_rarg2); |
|
903 |
||
1066 | 904 |
__ pop(c_rarg0); |
905 |
__ pop(c_rarg1); |
|
906 |
__ pop(c_rarg2); |
|
907 |
__ pop(c_rarg3); |
|
908 |
__ pop(rax); |
|
1 | 909 |
|
910 |
__ ret(0); |
|
911 |
||
912 |
return start; |
|
913 |
} |
|
914 |
||
915 |
address generate_fp_mask(const char *stub_name, int64_t mask) { |
|
5249 | 916 |
__ align(CodeEntryAlignment); |
1 | 917 |
StubCodeMark mark(this, "StubRoutines", stub_name); |
918 |
address start = __ pc(); |
|
919 |
||
920 |
__ emit_data64( mask, relocInfo::none ); |
|
921 |
__ emit_data64( mask, relocInfo::none ); |
|
922 |
||
923 |
return start; |
|
924 |
} |
|
925 |
||
926 |
// The following routine generates a subroutine to throw an |
|
927 |
// asynchronous UnknownError when an unsafe access gets a fault that |
|
928 |
// could not be reasonably prevented by the programmer. (Example: |
|
929 |
// SIGBUS/OBJERR.) |
|
930 |
address generate_handler_for_unsafe_access() { |
|
931 |
StubCodeMark mark(this, "StubRoutines", "handler_for_unsafe_access"); |
|
932 |
address start = __ pc(); |
|
933 |
||
1066 | 934 |
__ push(0); // hole for return address-to-be |
935 |
__ pusha(); // push registers |
|
1 | 936 |
Address next_pc(rsp, RegisterImpl::number_of_registers * BytesPerWord); |
937 |
||
1066 | 938 |
__ subptr(rsp, frame::arg_reg_save_area_bytes); |
1 | 939 |
BLOCK_COMMENT("call handle_unsafe_access"); |
940 |
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, handle_unsafe_access))); |
|
1066 | 941 |
__ addptr(rsp, frame::arg_reg_save_area_bytes); |
942 |
||
943 |
__ movptr(next_pc, rax); // stuff next address |
|
944 |
__ popa(); |
|
1 | 945 |
__ ret(0); // jump to next address |
946 |
||
947 |
return start; |
|
948 |
} |
|
949 |
||
950 |
// Non-destructive plausibility checks for oops |
|
951 |
// |
|
952 |
// Arguments: |
|
953 |
// all args on stack! |
|
954 |
// |
|
955 |
// Stack after saving c_rarg3: |
|
956 |
// [tos + 0]: saved c_rarg3 |
|
957 |
// [tos + 1]: saved c_rarg2 |
|
371
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6689060: Escape Analysis does not work with Compressed Oops
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parents:
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diff
changeset
|
958 |
// [tos + 2]: saved r12 (several TemplateTable methods use it) |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
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diff
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|
959 |
// [tos + 3]: saved flags |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
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diff
changeset
|
960 |
// [tos + 4]: return address |
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parents:
360
diff
changeset
|
961 |
// * [tos + 5]: error message (char*) |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
962 |
// * [tos + 6]: object to verify (oop) |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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360
diff
changeset
|
963 |
// * [tos + 7]: saved rax - saved by caller and bashed |
5706 | 964 |
// * [tos + 8]: saved r10 (rscratch1) - saved by caller |
1 | 965 |
// * = popped on exit |
966 |
address generate_verify_oop() { |
|
967 |
StubCodeMark mark(this, "StubRoutines", "verify_oop"); |
|
968 |
address start = __ pc(); |
|
969 |
||
970 |
Label exit, error; |
|
971 |
||
1066 | 972 |
__ pushf(); |
1 | 973 |
__ incrementl(ExternalAddress((address) StubRoutines::verify_oop_count_addr())); |
974 |
||
1066 | 975 |
__ push(r12); |
371
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parents:
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diff
changeset
|
976 |
|
1 | 977 |
// save c_rarg2 and c_rarg3 |
1066 | 978 |
__ push(c_rarg2); |
979 |
__ push(c_rarg3); |
|
1 | 980 |
|
371
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parents:
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diff
changeset
|
981 |
enum { |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
982 |
// After previous pushes. |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
983 |
oop_to_verify = 6 * wordSize, |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
984 |
saved_rax = 7 * wordSize, |
5706 | 985 |
saved_r10 = 8 * wordSize, |
371
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6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
986 |
|
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
987 |
// Before the call to MacroAssembler::debug(), see below. |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
988 |
return_addr = 16 * wordSize, |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
989 |
error_msg = 17 * wordSize |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
990 |
}; |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
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diff
changeset
|
991 |
|
1 | 992 |
// get object |
1066 | 993 |
__ movptr(rax, Address(rsp, oop_to_verify)); |
1 | 994 |
|
995 |
// make sure object is 'reasonable' |
|
1066 | 996 |
__ testptr(rax, rax); |
1 | 997 |
__ jcc(Assembler::zero, exit); // if obj is NULL it is OK |
998 |
// Check if the oop is in the right area of memory |
|
1066 | 999 |
__ movptr(c_rarg2, rax); |
1888
bbf498fb4354
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xlu
parents:
1437
diff
changeset
|
1000 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_oop_mask()); |
1066 | 1001 |
__ andptr(c_rarg2, c_rarg3); |
1888
bbf498fb4354
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xlu
parents:
1437
diff
changeset
|
1002 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_oop_bits()); |
1066 | 1003 |
__ cmpptr(c_rarg2, c_rarg3); |
1 | 1004 |
__ jcc(Assembler::notZero, error); |
1005 |
||
371
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parents:
360
diff
changeset
|
1006 |
// set r12 to heapbase for load_klass() |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
1007 |
__ reinit_heapbase(); |
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6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
1008 |
|
1 | 1009 |
// make sure klass is 'reasonable' |
360
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189
diff
changeset
|
1010 |
__ load_klass(rax, rax); // get klass |
1066 | 1011 |
__ testptr(rax, rax); |
1 | 1012 |
__ jcc(Assembler::zero, error); // if klass is NULL it is broken |
1013 |
// Check if the klass is in the right area of memory |
|
1066 | 1014 |
__ mov(c_rarg2, rax); |
1888
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1437
diff
changeset
|
1015 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_klass_mask()); |
1066 | 1016 |
__ andptr(c_rarg2, c_rarg3); |
1888
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parents:
1437
diff
changeset
|
1017 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_klass_bits()); |
1066 | 1018 |
__ cmpptr(c_rarg2, c_rarg3); |
1 | 1019 |
__ jcc(Assembler::notZero, error); |
1020 |
||
1021 |
// make sure klass' klass is 'reasonable' |
|
360
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parents:
189
diff
changeset
|
1022 |
__ load_klass(rax, rax); |
1066 | 1023 |
__ testptr(rax, rax); |
1 | 1024 |
__ jcc(Assembler::zero, error); // if klass' klass is NULL it is broken |
1025 |
// Check if the klass' klass is in the right area of memory |
|
1888
bbf498fb4354
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xlu
parents:
1437
diff
changeset
|
1026 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_klass_mask()); |
1066 | 1027 |
__ andptr(rax, c_rarg3); |
1888
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xlu
parents:
1437
diff
changeset
|
1028 |
__ movptr(c_rarg3, (intptr_t) Universe::verify_klass_bits()); |
1066 | 1029 |
__ cmpptr(rax, c_rarg3); |
1 | 1030 |
__ jcc(Assembler::notZero, error); |
1031 |
||
1032 |
// return if everything seems ok |
|
1033 |
__ bind(exit); |
|
1066 | 1034 |
__ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
5706 | 1035 |
__ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
1066 | 1036 |
__ pop(c_rarg3); // restore c_rarg3 |
1037 |
__ pop(c_rarg2); // restore c_rarg2 |
|
1038 |
__ pop(r12); // restore r12 |
|
1039 |
__ popf(); // restore flags |
|
5706 | 1040 |
__ ret(4 * wordSize); // pop caller saved stuff |
1 | 1041 |
|
1042 |
// handle errors |
|
1043 |
__ bind(error); |
|
1066 | 1044 |
__ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
5706 | 1045 |
__ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
1066 | 1046 |
__ pop(c_rarg3); // get saved c_rarg3 back |
1047 |
__ pop(c_rarg2); // get saved c_rarg2 back |
|
1048 |
__ pop(r12); // get saved r12 back |
|
1049 |
__ popf(); // get saved flags off stack -- |
|
1 | 1050 |
// will be ignored |
1051 |
||
1066 | 1052 |
__ pusha(); // push registers |
1 | 1053 |
// (rip is already |
1054 |
// already pushed) |
|
371
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6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
1055 |
// debug(char* msg, int64_t pc, int64_t regs[]) |
1 | 1056 |
// We've popped the registers we'd saved (c_rarg3, c_rarg2 and flags), and |
1057 |
// pushed all the registers, so now the stack looks like: |
|
1058 |
// [tos + 0] 16 saved registers |
|
1059 |
// [tos + 16] return address |
|
371
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360
diff
changeset
|
1060 |
// * [tos + 17] error message (char*) |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
1061 |
// * [tos + 18] object to verify (oop) |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
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parents:
360
diff
changeset
|
1062 |
// * [tos + 19] saved rax - saved by caller and bashed |
5706 | 1063 |
// * [tos + 20] saved r10 (rscratch1) - saved by caller |
371
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diff
changeset
|
1064 |
// * = popped on exit |
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360
diff
changeset
|
1065 |
|
1066 | 1066 |
__ movptr(c_rarg0, Address(rsp, error_msg)); // pass address of error message |
1067 |
__ movptr(c_rarg1, Address(rsp, return_addr)); // pass return address |
|
1068 |
__ movq(c_rarg2, rsp); // pass address of regs on stack |
|
1069 |
__ mov(r12, rsp); // remember rsp |
|
1070 |
__ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
|
1071 |
__ andptr(rsp, -16); // align stack as required by ABI |
|
1 | 1072 |
BLOCK_COMMENT("call MacroAssembler::debug"); |
1066 | 1073 |
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, MacroAssembler::debug64))); |
1074 |
__ mov(rsp, r12); // restore rsp |
|
1075 |
__ popa(); // pop registers (includes r12) |
|
5706 | 1076 |
__ ret(4 * wordSize); // pop caller saved stuff |
1 | 1077 |
|
1078 |
return start; |
|
1079 |
} |
|
1080 |
||
1081 |
// |
|
1082 |
// Verify that a register contains clean 32-bits positive value |
|
1083 |
// (high 32-bits are 0) so it could be used in 64-bits shifts. |
|
1084 |
// |
|
1085 |
// Input: |
|
1086 |
// Rint - 32-bits value |
|
1087 |
// Rtmp - scratch |
|
1088 |
// |
|
1089 |
void assert_clean_int(Register Rint, Register Rtmp) { |
|
1090 |
#ifdef ASSERT |
|
1091 |
Label L; |
|
1092 |
assert_different_registers(Rtmp, Rint); |
|
1093 |
__ movslq(Rtmp, Rint); |
|
1094 |
__ cmpq(Rtmp, Rint); |
|
371
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parents:
360
diff
changeset
|
1095 |
__ jcc(Assembler::equal, L); |
1 | 1096 |
__ stop("high 32-bits of int value are not 0"); |
1097 |
__ bind(L); |
|
1098 |
#endif |
|
1099 |
} |
|
1100 |
||
1101 |
// Generate overlap test for array copy stubs |
|
1102 |
// |
|
1103 |
// Input: |
|
1104 |
// c_rarg0 - from |
|
1105 |
// c_rarg1 - to |
|
1106 |
// c_rarg2 - element count |
|
1107 |
// |
|
1108 |
// Output: |
|
1109 |
// rax - &from[element count - 1] |
|
1110 |
// |
|
1111 |
void array_overlap_test(address no_overlap_target, Address::ScaleFactor sf) { |
|
1112 |
assert(no_overlap_target != NULL, "must be generated"); |
|
1113 |
array_overlap_test(no_overlap_target, NULL, sf); |
|
1114 |
} |
|
1115 |
void array_overlap_test(Label& L_no_overlap, Address::ScaleFactor sf) { |
|
1116 |
array_overlap_test(NULL, &L_no_overlap, sf); |
|
1117 |
} |
|
1118 |
void array_overlap_test(address no_overlap_target, Label* NOLp, Address::ScaleFactor sf) { |
|
1119 |
const Register from = c_rarg0; |
|
1120 |
const Register to = c_rarg1; |
|
1121 |
const Register count = c_rarg2; |
|
1122 |
const Register end_from = rax; |
|
1123 |
||
1066 | 1124 |
__ cmpptr(to, from); |
1125 |
__ lea(end_from, Address(from, count, sf, 0)); |
|
1 | 1126 |
if (NOLp == NULL) { |
1127 |
ExternalAddress no_overlap(no_overlap_target); |
|
1128 |
__ jump_cc(Assembler::belowEqual, no_overlap); |
|
1066 | 1129 |
__ cmpptr(to, end_from); |
1 | 1130 |
__ jump_cc(Assembler::aboveEqual, no_overlap); |
1131 |
} else { |
|
1132 |
__ jcc(Assembler::belowEqual, (*NOLp)); |
|
1066 | 1133 |
__ cmpptr(to, end_from); |
1 | 1134 |
__ jcc(Assembler::aboveEqual, (*NOLp)); |
1135 |
} |
|
1136 |
} |
|
1137 |
||
1138 |
// Shuffle first three arg regs on Windows into Linux/Solaris locations. |
|
1139 |
// |
|
1140 |
// Outputs: |
|
1141 |
// rdi - rcx |
|
1142 |
// rsi - rdx |
|
1143 |
// rdx - r8 |
|
1144 |
// rcx - r9 |
|
1145 |
// |
|
1146 |
// Registers r9 and r10 are used to save rdi and rsi on Windows, which latter |
|
1147 |
// are non-volatile. r9 and r10 should not be used by the caller. |
|
1148 |
// |
|
1149 |
void setup_arg_regs(int nargs = 3) { |
|
1150 |
const Register saved_rdi = r9; |
|
1151 |
const Register saved_rsi = r10; |
|
1152 |
assert(nargs == 3 || nargs == 4, "else fix"); |
|
1153 |
#ifdef _WIN64 |
|
1154 |
assert(c_rarg0 == rcx && c_rarg1 == rdx && c_rarg2 == r8 && c_rarg3 == r9, |
|
1155 |
"unexpected argument registers"); |
|
1156 |
if (nargs >= 4) |
|
1066 | 1157 |
__ mov(rax, r9); // r9 is also saved_rdi |
1158 |
__ movptr(saved_rdi, rdi); |
|
1159 |
__ movptr(saved_rsi, rsi); |
|
1160 |
__ mov(rdi, rcx); // c_rarg0 |
|
1161 |
__ mov(rsi, rdx); // c_rarg1 |
|
1162 |
__ mov(rdx, r8); // c_rarg2 |
|
1 | 1163 |
if (nargs >= 4) |
1066 | 1164 |
__ mov(rcx, rax); // c_rarg3 (via rax) |
1 | 1165 |
#else |
1166 |
assert(c_rarg0 == rdi && c_rarg1 == rsi && c_rarg2 == rdx && c_rarg3 == rcx, |
|
1167 |
"unexpected argument registers"); |
|
1168 |
#endif |
|
1169 |
} |
|
1170 |
||
1171 |
void restore_arg_regs() { |
|
1172 |
const Register saved_rdi = r9; |
|
1173 |
const Register saved_rsi = r10; |
|
1174 |
#ifdef _WIN64 |
|
1066 | 1175 |
__ movptr(rdi, saved_rdi); |
1176 |
__ movptr(rsi, saved_rsi); |
|
1 | 1177 |
#endif |
1178 |
} |
|
1179 |
||
1180 |
// Generate code for an array write pre barrier |
|
1181 |
// |
|
1182 |
// addr - starting address |
|
8498 | 1183 |
// count - element count |
1184 |
// tmp - scratch register |
|
1 | 1185 |
// |
1186 |
// Destroy no registers! |
|
1187 |
// |
|
8498 | 1188 |
void gen_write_ref_array_pre_barrier(Register addr, Register count, bool dest_uninitialized) { |
1 | 1189 |
BarrierSet* bs = Universe::heap()->barrier_set(); |
1190 |
switch (bs->kind()) { |
|
1191 |
case BarrierSet::G1SATBCT: |
|
1192 |
case BarrierSet::G1SATBCTLogging: |
|
8498 | 1193 |
// With G1, don't generate the call if we statically know that the target in uninitialized |
1194 |
if (!dest_uninitialized) { |
|
1195 |
__ pusha(); // push registers |
|
1196 |
if (count == c_rarg0) { |
|
1197 |
if (addr == c_rarg1) { |
|
1198 |
// exactly backwards!! |
|
1199 |
__ xchgptr(c_rarg1, c_rarg0); |
|
1200 |
} else { |
|
1201 |
__ movptr(c_rarg1, count); |
|
1202 |
__ movptr(c_rarg0, addr); |
|
1203 |
} |
|
1204 |
} else { |
|
1205 |
__ movptr(c_rarg0, addr); |
|
1206 |
__ movptr(c_rarg1, count); |
|
1207 |
} |
|
1208 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_pre), 2); |
|
1209 |
__ popa(); |
|
1 | 1210 |
} |
8498 | 1211 |
break; |
1 | 1212 |
case BarrierSet::CardTableModRef: |
1213 |
case BarrierSet::CardTableExtension: |
|
1214 |
case BarrierSet::ModRef: |
|
1215 |
break; |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1216 |
default: |
1 | 1217 |
ShouldNotReachHere(); |
1218 |
||
1219 |
} |
|
1220 |
} |
|
1221 |
||
1222 |
// |
|
1223 |
// Generate code for an array write post barrier |
|
1224 |
// |
|
1225 |
// Input: |
|
1226 |
// start - register containing starting address of destination array |
|
1227 |
// end - register containing ending address of destination array |
|
1228 |
// scratch - scratch register |
|
1229 |
// |
|
1230 |
// The input registers are overwritten. |
|
1231 |
// The ending address is inclusive. |
|
1232 |
void gen_write_ref_array_post_barrier(Register start, Register end, Register scratch) { |
|
1233 |
assert_different_registers(start, end, scratch); |
|
1234 |
BarrierSet* bs = Universe::heap()->barrier_set(); |
|
1235 |
switch (bs->kind()) { |
|
1236 |
case BarrierSet::G1SATBCT: |
|
1237 |
case BarrierSet::G1SATBCTLogging: |
|
1238 |
||
1239 |
{ |
|
1066 | 1240 |
__ pusha(); // push registers (overkill) |
1 | 1241 |
// must compute element count unless barrier set interface is changed (other platforms supply count) |
1242 |
assert_different_registers(start, end, scratch); |
|
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
1243 |
__ lea(scratch, Address(end, BytesPerHeapOop)); |
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
1244 |
__ subptr(scratch, start); // subtract start to get #bytes |
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
1245 |
__ shrptr(scratch, LogBytesPerHeapOop); // convert to element count |
1066 | 1246 |
__ mov(c_rarg0, start); |
1247 |
__ mov(c_rarg1, scratch); |
|
4740
d708800308b7
6918006: G1: spill space must be reserved on the stack for barrier calls on Windows x64
apetrusenko
parents:
4645
diff
changeset
|
1248 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_post), 2); |
1066 | 1249 |
__ popa(); |
1 | 1250 |
} |
1251 |
break; |
|
1252 |
case BarrierSet::CardTableModRef: |
|
1253 |
case BarrierSet::CardTableExtension: |
|
1254 |
{ |
|
1255 |
CardTableModRefBS* ct = (CardTableModRefBS*)bs; |
|
1256 |
assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); |
|
1257 |
||
1258 |
Label L_loop; |
|
1259 |
||
1066 | 1260 |
__ shrptr(start, CardTableModRefBS::card_shift); |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
1261 |
__ addptr(end, BytesPerHeapOop); |
1066 | 1262 |
__ shrptr(end, CardTableModRefBS::card_shift); |
1263 |
__ subptr(end, start); // number of bytes to copy |
|
1 | 1264 |
|
957
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1265 |
intptr_t disp = (intptr_t) ct->byte_map_base; |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1266 |
if (__ is_simm32(disp)) { |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1267 |
Address cardtable(noreg, noreg, Address::no_scale, disp); |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1268 |
__ lea(scratch, cardtable); |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1269 |
} else { |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1270 |
ExternalAddress cardtable((address)disp); |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1271 |
__ lea(scratch, cardtable); |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1272 |
} |
386f9fbd4cb3
6717457: Internal Error (src/share/vm/code/relocInfo.hpp:1089)
never
parents:
670
diff
changeset
|
1273 |
|
1 | 1274 |
const Register count = end; // 'end' register contains bytes count now |
1066 | 1275 |
__ addptr(start, scratch); |
1 | 1276 |
__ BIND(L_loop); |
1277 |
__ movb(Address(start, count, Address::times_1), 0); |
|
1066 | 1278 |
__ decrement(count); |
1 | 1279 |
__ jcc(Assembler::greaterEqual, L_loop); |
1280 |
} |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1281 |
break; |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1282 |
default: |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1283 |
ShouldNotReachHere(); |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1284 |
|
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1285 |
} |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
371
diff
changeset
|
1286 |
} |
1 | 1287 |
|
1437 | 1288 |
|
1 | 1289 |
// Copy big chunks forward |
1290 |
// |
|
1291 |
// Inputs: |
|
1292 |
// end_from - source arrays end address |
|
1293 |
// end_to - destination array end address |
|
1294 |
// qword_count - 64-bits element count, negative |
|
1295 |
// to - scratch |
|
1296 |
// L_copy_32_bytes - entry label |
|
1297 |
// L_copy_8_bytes - exit label |
|
1298 |
// |
|
1299 |
void copy_32_bytes_forward(Register end_from, Register end_to, |
|
1300 |
Register qword_count, Register to, |
|
1301 |
Label& L_copy_32_bytes, Label& L_copy_8_bytes) { |
|
1302 |
DEBUG_ONLY(__ stop("enter at entry label, not here")); |
|
1303 |
Label L_loop; |
|
5249 | 1304 |
__ align(OptoLoopAlignment); |
1 | 1305 |
__ BIND(L_loop); |
1437 | 1306 |
if(UseUnalignedLoadStores) { |
1307 |
__ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); |
|
1308 |
__ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); |
|
1309 |
__ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, - 8)); |
|
1310 |
__ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm1); |
|
1311 |
||
1312 |
} else { |
|
1313 |
__ movq(to, Address(end_from, qword_count, Address::times_8, -24)); |
|
1314 |
__ movq(Address(end_to, qword_count, Address::times_8, -24), to); |
|
1315 |
__ movq(to, Address(end_from, qword_count, Address::times_8, -16)); |
|
1316 |
__ movq(Address(end_to, qword_count, Address::times_8, -16), to); |
|
1317 |
__ movq(to, Address(end_from, qword_count, Address::times_8, - 8)); |
|
1318 |
__ movq(Address(end_to, qword_count, Address::times_8, - 8), to); |
|
1319 |
__ movq(to, Address(end_from, qword_count, Address::times_8, - 0)); |
|
1320 |
__ movq(Address(end_to, qword_count, Address::times_8, - 0), to); |
|
1321 |
} |
|
1 | 1322 |
__ BIND(L_copy_32_bytes); |
1066 | 1323 |
__ addptr(qword_count, 4); |
1 | 1324 |
__ jcc(Assembler::lessEqual, L_loop); |
1066 | 1325 |
__ subptr(qword_count, 4); |
1 | 1326 |
__ jcc(Assembler::less, L_copy_8_bytes); // Copy trailing qwords |
1327 |
} |
|
1328 |
||
1329 |
||
1330 |
// Copy big chunks backward |
|
1331 |
// |
|
1332 |
// Inputs: |
|
1333 |
// from - source arrays address |
|
1334 |
// dest - destination array address |
|
1335 |
// qword_count - 64-bits element count |
|
1336 |
// to - scratch |
|
1337 |
// L_copy_32_bytes - entry label |
|
1338 |
// L_copy_8_bytes - exit label |
|
1339 |
// |
|
1340 |
void copy_32_bytes_backward(Register from, Register dest, |
|
1341 |
Register qword_count, Register to, |
|
1342 |
Label& L_copy_32_bytes, Label& L_copy_8_bytes) { |
|
1343 |
DEBUG_ONLY(__ stop("enter at entry label, not here")); |
|
1344 |
Label L_loop; |
|
5249 | 1345 |
__ align(OptoLoopAlignment); |
1 | 1346 |
__ BIND(L_loop); |
1437 | 1347 |
if(UseUnalignedLoadStores) { |
1348 |
__ movdqu(xmm0, Address(from, qword_count, Address::times_8, 16)); |
|
1349 |
__ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm0); |
|
1350 |
__ movdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); |
|
1351 |
__ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); |
|
1352 |
||
1353 |
} else { |
|
1354 |
__ movq(to, Address(from, qword_count, Address::times_8, 24)); |
|
1355 |
__ movq(Address(dest, qword_count, Address::times_8, 24), to); |
|
1356 |
__ movq(to, Address(from, qword_count, Address::times_8, 16)); |
|
1357 |
__ movq(Address(dest, qword_count, Address::times_8, 16), to); |
|
1358 |
__ movq(to, Address(from, qword_count, Address::times_8, 8)); |
|
1359 |
__ movq(Address(dest, qword_count, Address::times_8, 8), to); |
|
1360 |
__ movq(to, Address(from, qword_count, Address::times_8, 0)); |
|
1361 |
__ movq(Address(dest, qword_count, Address::times_8, 0), to); |
|
1362 |
} |
|
1 | 1363 |
__ BIND(L_copy_32_bytes); |
1066 | 1364 |
__ subptr(qword_count, 4); |
1 | 1365 |
__ jcc(Assembler::greaterEqual, L_loop); |
1066 | 1366 |
__ addptr(qword_count, 4); |
1 | 1367 |
__ jcc(Assembler::greater, L_copy_8_bytes); // Copy trailing qwords |
1368 |
} |
|
1369 |
||
1370 |
||
1371 |
// Arguments: |
|
1372 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1373 |
// ignored |
|
1374 |
// name - stub name string |
|
1375 |
// |
|
1376 |
// Inputs: |
|
1377 |
// c_rarg0 - source array address |
|
1378 |
// c_rarg1 - destination array address |
|
1379 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1380 |
// |
|
1381 |
// If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, |
|
1382 |
// we let the hardware handle it. The one to eight bytes within words, |
|
1383 |
// dwords or qwords that span cache line boundaries will still be loaded |
|
1384 |
// and stored atomically. |
|
1385 |
// |
|
1386 |
// Side Effects: |
|
1387 |
// disjoint_byte_copy_entry is set to the no-overlap entry point |
|
1388 |
// used by generate_conjoint_byte_copy(). |
|
1389 |
// |
|
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1390 |
address generate_disjoint_byte_copy(bool aligned, address* entry, const char *name) { |
1 | 1391 |
__ align(CodeEntryAlignment); |
1392 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1393 |
address start = __ pc(); |
|
1394 |
||
1395 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
|
1396 |
Label L_copy_byte, L_exit; |
|
1397 |
const Register from = rdi; // source array address |
|
1398 |
const Register to = rsi; // destination array address |
|
1399 |
const Register count = rdx; // elements count |
|
1400 |
const Register byte_count = rcx; |
|
1401 |
const Register qword_count = count; |
|
1402 |
const Register end_from = from; // source array end address |
|
1403 |
const Register end_to = to; // destination array end address |
|
1404 |
// End pointers are inclusive, and if count is not zero they point |
|
1405 |
// to the last unit copied: end_to[0] := end_from[0] |
|
1406 |
||
1407 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1408 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1409 |
||
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1410 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1411 |
*entry = __ pc(); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1412 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1413 |
BLOCK_COMMENT("Entry:"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1414 |
} |
1 | 1415 |
|
1416 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
|
1417 |
// r9 and r10 may be used to save non-volatile registers |
|
1418 |
||
1419 |
// 'from', 'to' and 'count' are now valid |
|
1066 | 1420 |
__ movptr(byte_count, count); |
1421 |
__ shrptr(count, 3); // count => qword_count |
|
1 | 1422 |
|
1423 |
// Copy from low to high addresses. Use 'to' as scratch. |
|
1066 | 1424 |
__ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1425 |
__ lea(end_to, Address(to, qword_count, Address::times_8, -8)); |
|
1426 |
__ negptr(qword_count); // make the count negative |
|
1 | 1427 |
__ jmp(L_copy_32_bytes); |
1428 |
||
1429 |
// Copy trailing qwords |
|
1430 |
__ BIND(L_copy_8_bytes); |
|
1431 |
__ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); |
|
1432 |
__ movq(Address(end_to, qword_count, Address::times_8, 8), rax); |
|
1066 | 1433 |
__ increment(qword_count); |
1 | 1434 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1435 |
||
1436 |
// Check for and copy trailing dword |
|
1437 |
__ BIND(L_copy_4_bytes); |
|
1066 | 1438 |
__ testl(byte_count, 4); |
1 | 1439 |
__ jccb(Assembler::zero, L_copy_2_bytes); |
1440 |
__ movl(rax, Address(end_from, 8)); |
|
1441 |
__ movl(Address(end_to, 8), rax); |
|
1442 |
||
1066 | 1443 |
__ addptr(end_from, 4); |
1444 |
__ addptr(end_to, 4); |
|
1 | 1445 |
|
1446 |
// Check for and copy trailing word |
|
1447 |
__ BIND(L_copy_2_bytes); |
|
1066 | 1448 |
__ testl(byte_count, 2); |
1 | 1449 |
__ jccb(Assembler::zero, L_copy_byte); |
1450 |
__ movw(rax, Address(end_from, 8)); |
|
1451 |
__ movw(Address(end_to, 8), rax); |
|
1452 |
||
1066 | 1453 |
__ addptr(end_from, 2); |
1454 |
__ addptr(end_to, 2); |
|
1 | 1455 |
|
1456 |
// Check for and copy trailing byte |
|
1457 |
__ BIND(L_copy_byte); |
|
1066 | 1458 |
__ testl(byte_count, 1); |
1 | 1459 |
__ jccb(Assembler::zero, L_exit); |
1460 |
__ movb(rax, Address(end_from, 8)); |
|
1461 |
__ movb(Address(end_to, 8), rax); |
|
1462 |
||
1463 |
__ BIND(L_exit); |
|
1464 |
inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); |
|
1465 |
restore_arg_regs(); |
|
1066 | 1466 |
__ xorptr(rax, rax); // return 0 |
1 | 1467 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1468 |
__ ret(0); |
|
1469 |
||
1470 |
// Copy in 32-bytes chunks |
|
1471 |
copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1472 |
__ jmp(L_copy_4_bytes); |
|
1473 |
||
1474 |
return start; |
|
1475 |
} |
|
1476 |
||
1477 |
// Arguments: |
|
1478 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1479 |
// ignored |
|
1480 |
// name - stub name string |
|
1481 |
// |
|
1482 |
// Inputs: |
|
1483 |
// c_rarg0 - source array address |
|
1484 |
// c_rarg1 - destination array address |
|
1485 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1486 |
// |
|
1487 |
// If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, |
|
1488 |
// we let the hardware handle it. The one to eight bytes within words, |
|
1489 |
// dwords or qwords that span cache line boundaries will still be loaded |
|
1490 |
// and stored atomically. |
|
1491 |
// |
|
8487
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|
1492 |
address generate_conjoint_byte_copy(bool aligned, address nooverlap_target, |
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|
1493 |
address* entry, const char *name) { |
1 | 1494 |
__ align(CodeEntryAlignment); |
1495 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1496 |
address start = __ pc(); |
|
1497 |
||
1498 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
|
1499 |
const Register from = rdi; // source array address |
|
1500 |
const Register to = rsi; // destination array address |
|
1501 |
const Register count = rdx; // elements count |
|
1502 |
const Register byte_count = rcx; |
|
1503 |
const Register qword_count = count; |
|
1504 |
||
1505 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1506 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1507 |
||
8487
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|
1508 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
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diff
changeset
|
1509 |
*entry = __ pc(); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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changeset
|
1510 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
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diff
changeset
|
1511 |
BLOCK_COMMENT("Entry:"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1512 |
} |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
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changeset
|
1513 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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|
1514 |
array_overlap_test(nooverlap_target, Address::times_1); |
1 | 1515 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1516 |
// r9 and r10 may be used to save non-volatile registers |
|
1517 |
||
1518 |
// 'from', 'to' and 'count' are now valid |
|
1066 | 1519 |
__ movptr(byte_count, count); |
1520 |
__ shrptr(count, 3); // count => qword_count |
|
1 | 1521 |
|
1522 |
// Copy from high to low addresses. |
|
1523 |
||
1524 |
// Check for and copy trailing byte |
|
1066 | 1525 |
__ testl(byte_count, 1); |
1 | 1526 |
__ jcc(Assembler::zero, L_copy_2_bytes); |
1527 |
__ movb(rax, Address(from, byte_count, Address::times_1, -1)); |
|
1528 |
__ movb(Address(to, byte_count, Address::times_1, -1), rax); |
|
1066 | 1529 |
__ decrement(byte_count); // Adjust for possible trailing word |
1 | 1530 |
|
1531 |
// Check for and copy trailing word |
|
1532 |
__ BIND(L_copy_2_bytes); |
|
1066 | 1533 |
__ testl(byte_count, 2); |
1 | 1534 |
__ jcc(Assembler::zero, L_copy_4_bytes); |
1535 |
__ movw(rax, Address(from, byte_count, Address::times_1, -2)); |
|
1536 |
__ movw(Address(to, byte_count, Address::times_1, -2), rax); |
|
1537 |
||
1538 |
// Check for and copy trailing dword |
|
1539 |
__ BIND(L_copy_4_bytes); |
|
1066 | 1540 |
__ testl(byte_count, 4); |
1 | 1541 |
__ jcc(Assembler::zero, L_copy_32_bytes); |
1542 |
__ movl(rax, Address(from, qword_count, Address::times_8)); |
|
1543 |
__ movl(Address(to, qword_count, Address::times_8), rax); |
|
1544 |
__ jmp(L_copy_32_bytes); |
|
1545 |
||
1546 |
// Copy trailing qwords |
|
1547 |
__ BIND(L_copy_8_bytes); |
|
1548 |
__ movq(rax, Address(from, qword_count, Address::times_8, -8)); |
|
1549 |
__ movq(Address(to, qword_count, Address::times_8, -8), rax); |
|
1066 | 1550 |
__ decrement(qword_count); |
1 | 1551 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1552 |
||
1553 |
inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); |
|
1554 |
restore_arg_regs(); |
|
1066 | 1555 |
__ xorptr(rax, rax); // return 0 |
1 | 1556 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1557 |
__ ret(0); |
|
1558 |
||
1559 |
// Copy in 32-bytes chunks |
|
1560 |
copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1561 |
||
1562 |
inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); |
|
1563 |
restore_arg_regs(); |
|
1066 | 1564 |
__ xorptr(rax, rax); // return 0 |
1 | 1565 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1566 |
__ ret(0); |
|
1567 |
||
1568 |
return start; |
|
1569 |
} |
|
1570 |
||
1571 |
// Arguments: |
|
1572 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1573 |
// ignored |
|
1574 |
// name - stub name string |
|
1575 |
// |
|
1576 |
// Inputs: |
|
1577 |
// c_rarg0 - source array address |
|
1578 |
// c_rarg1 - destination array address |
|
1579 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1580 |
// |
|
1581 |
// If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we |
|
1582 |
// let the hardware handle it. The two or four words within dwords |
|
1583 |
// or qwords that span cache line boundaries will still be loaded |
|
1584 |
// and stored atomically. |
|
1585 |
// |
|
1586 |
// Side Effects: |
|
1587 |
// disjoint_short_copy_entry is set to the no-overlap entry point |
|
1588 |
// used by generate_conjoint_short_copy(). |
|
1589 |
// |
|
8487
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7020521: arraycopy stubs place prebarriers incorrectly
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7431
diff
changeset
|
1590 |
address generate_disjoint_short_copy(bool aligned, address *entry, const char *name) { |
1 | 1591 |
__ align(CodeEntryAlignment); |
1592 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1593 |
address start = __ pc(); |
|
1594 |
||
1595 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes,L_copy_2_bytes,L_exit; |
|
1596 |
const Register from = rdi; // source array address |
|
1597 |
const Register to = rsi; // destination array address |
|
1598 |
const Register count = rdx; // elements count |
|
1599 |
const Register word_count = rcx; |
|
1600 |
const Register qword_count = count; |
|
1601 |
const Register end_from = from; // source array end address |
|
1602 |
const Register end_to = to; // destination array end address |
|
1603 |
// End pointers are inclusive, and if count is not zero they point |
|
1604 |
// to the last unit copied: end_to[0] := end_from[0] |
|
1605 |
||
1606 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1607 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1608 |
||
8487
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7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1609 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1610 |
*entry = __ pc(); |
bf96596f06d2
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changeset
|
1611 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1612 |
BLOCK_COMMENT("Entry:"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1613 |
} |
1 | 1614 |
|
1615 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
|
1616 |
// r9 and r10 may be used to save non-volatile registers |
|
1617 |
||
1618 |
// 'from', 'to' and 'count' are now valid |
|
1066 | 1619 |
__ movptr(word_count, count); |
1620 |
__ shrptr(count, 2); // count => qword_count |
|
1 | 1621 |
|
1622 |
// Copy from low to high addresses. Use 'to' as scratch. |
|
1066 | 1623 |
__ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1624 |
__ lea(end_to, Address(to, qword_count, Address::times_8, -8)); |
|
1625 |
__ negptr(qword_count); |
|
1 | 1626 |
__ jmp(L_copy_32_bytes); |
1627 |
||
1628 |
// Copy trailing qwords |
|
1629 |
__ BIND(L_copy_8_bytes); |
|
1630 |
__ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); |
|
1631 |
__ movq(Address(end_to, qword_count, Address::times_8, 8), rax); |
|
1066 | 1632 |
__ increment(qword_count); |
1 | 1633 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1634 |
||
1635 |
// Original 'dest' is trashed, so we can't use it as a |
|
1636 |
// base register for a possible trailing word copy |
|
1637 |
||
1638 |
// Check for and copy trailing dword |
|
1639 |
__ BIND(L_copy_4_bytes); |
|
1066 | 1640 |
__ testl(word_count, 2); |
1 | 1641 |
__ jccb(Assembler::zero, L_copy_2_bytes); |
1642 |
__ movl(rax, Address(end_from, 8)); |
|
1643 |
__ movl(Address(end_to, 8), rax); |
|
1644 |
||
1066 | 1645 |
__ addptr(end_from, 4); |
1646 |
__ addptr(end_to, 4); |
|
1 | 1647 |
|
1648 |
// Check for and copy trailing word |
|
1649 |
__ BIND(L_copy_2_bytes); |
|
1066 | 1650 |
__ testl(word_count, 1); |
1 | 1651 |
__ jccb(Assembler::zero, L_exit); |
1652 |
__ movw(rax, Address(end_from, 8)); |
|
1653 |
__ movw(Address(end_to, 8), rax); |
|
1654 |
||
1655 |
__ BIND(L_exit); |
|
1656 |
inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); |
|
1657 |
restore_arg_regs(); |
|
1066 | 1658 |
__ xorptr(rax, rax); // return 0 |
1 | 1659 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1660 |
__ ret(0); |
|
1661 |
||
1662 |
// Copy in 32-bytes chunks |
|
1663 |
copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1664 |
__ jmp(L_copy_4_bytes); |
|
1665 |
||
1666 |
return start; |
|
1667 |
} |
|
1668 |
||
6433 | 1669 |
address generate_fill(BasicType t, bool aligned, const char *name) { |
1670 |
__ align(CodeEntryAlignment); |
|
1671 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1672 |
address start = __ pc(); |
|
1673 |
||
1674 |
BLOCK_COMMENT("Entry:"); |
|
1675 |
||
1676 |
const Register to = c_rarg0; // source array address |
|
1677 |
const Register value = c_rarg1; // value |
|
1678 |
const Register count = c_rarg2; // elements count |
|
1679 |
||
1680 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1681 |
||
1682 |
__ generate_fill(t, aligned, to, value, count, rax, xmm0); |
|
1683 |
||
1684 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
|
1685 |
__ ret(0); |
|
1686 |
return start; |
|
1687 |
} |
|
1688 |
||
1 | 1689 |
// Arguments: |
1690 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1691 |
// ignored |
|
1692 |
// name - stub name string |
|
1693 |
// |
|
1694 |
// Inputs: |
|
1695 |
// c_rarg0 - source array address |
|
1696 |
// c_rarg1 - destination array address |
|
1697 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1698 |
// |
|
1699 |
// If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we |
|
1700 |
// let the hardware handle it. The two or four words within dwords |
|
1701 |
// or qwords that span cache line boundaries will still be loaded |
|
1702 |
// and stored atomically. |
|
1703 |
// |
|
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1704 |
address generate_conjoint_short_copy(bool aligned, address nooverlap_target, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1705 |
address *entry, const char *name) { |
1 | 1706 |
__ align(CodeEntryAlignment); |
1707 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1708 |
address start = __ pc(); |
|
1709 |
||
1710 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes; |
|
1711 |
const Register from = rdi; // source array address |
|
1712 |
const Register to = rsi; // destination array address |
|
1713 |
const Register count = rdx; // elements count |
|
1714 |
const Register word_count = rcx; |
|
1715 |
const Register qword_count = count; |
|
1716 |
||
1717 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1718 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1719 |
||
8487
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7020521: arraycopy stubs place prebarriers incorrectly
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parents:
7431
diff
changeset
|
1720 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1721 |
*entry = __ pc(); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1722 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
1723 |
BLOCK_COMMENT("Entry:"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1724 |
} |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1725 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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diff
changeset
|
1726 |
array_overlap_test(nooverlap_target, Address::times_2); |
1 | 1727 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1728 |
// r9 and r10 may be used to save non-volatile registers |
|
1729 |
||
1730 |
// 'from', 'to' and 'count' are now valid |
|
1066 | 1731 |
__ movptr(word_count, count); |
1732 |
__ shrptr(count, 2); // count => qword_count |
|
1 | 1733 |
|
1734 |
// Copy from high to low addresses. Use 'to' as scratch. |
|
1735 |
||
1736 |
// Check for and copy trailing word |
|
1066 | 1737 |
__ testl(word_count, 1); |
1 | 1738 |
__ jccb(Assembler::zero, L_copy_4_bytes); |
1739 |
__ movw(rax, Address(from, word_count, Address::times_2, -2)); |
|
1740 |
__ movw(Address(to, word_count, Address::times_2, -2), rax); |
|
1741 |
||
1742 |
// Check for and copy trailing dword |
|
1743 |
__ BIND(L_copy_4_bytes); |
|
1066 | 1744 |
__ testl(word_count, 2); |
1 | 1745 |
__ jcc(Assembler::zero, L_copy_32_bytes); |
1746 |
__ movl(rax, Address(from, qword_count, Address::times_8)); |
|
1747 |
__ movl(Address(to, qword_count, Address::times_8), rax); |
|
1748 |
__ jmp(L_copy_32_bytes); |
|
1749 |
||
1750 |
// Copy trailing qwords |
|
1751 |
__ BIND(L_copy_8_bytes); |
|
1752 |
__ movq(rax, Address(from, qword_count, Address::times_8, -8)); |
|
1753 |
__ movq(Address(to, qword_count, Address::times_8, -8), rax); |
|
1066 | 1754 |
__ decrement(qword_count); |
1 | 1755 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1756 |
||
1757 |
inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); |
|
1758 |
restore_arg_regs(); |
|
1066 | 1759 |
__ xorptr(rax, rax); // return 0 |
1 | 1760 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1761 |
__ ret(0); |
|
1762 |
||
1763 |
// Copy in 32-bytes chunks |
|
1764 |
copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1765 |
||
1766 |
inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); |
|
1767 |
restore_arg_regs(); |
|
1066 | 1768 |
__ xorptr(rax, rax); // return 0 |
1 | 1769 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1770 |
__ ret(0); |
|
1771 |
||
1772 |
return start; |
|
1773 |
} |
|
1774 |
||
1775 |
// Arguments: |
|
1776 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1777 |
// ignored |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
1778 |
// is_oop - true => oop array, so generate store check code |
1 | 1779 |
// name - stub name string |
1780 |
// |
|
1781 |
// Inputs: |
|
1782 |
// c_rarg0 - source array address |
|
1783 |
// c_rarg1 - destination array address |
|
1784 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1785 |
// |
|
1786 |
// If 'from' and/or 'to' are aligned on 4-byte boundaries, we let |
|
1787 |
// the hardware handle it. The two dwords within qwords that span |
|
1788 |
// cache line boundaries will still be loaded and stored atomicly. |
|
1789 |
// |
|
1790 |
// Side Effects: |
|
1791 |
// disjoint_int_copy_entry is set to the no-overlap entry point |
|
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1792 |
// used by generate_conjoint_int_oop_copy(). |
1 | 1793 |
// |
8498 | 1794 |
address generate_disjoint_int_oop_copy(bool aligned, bool is_oop, address* entry, |
1795 |
const char *name, bool dest_uninitialized = false) { |
|
1 | 1796 |
__ align(CodeEntryAlignment); |
1797 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1798 |
address start = __ pc(); |
|
1799 |
||
1800 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_4_bytes, L_exit; |
|
1801 |
const Register from = rdi; // source array address |
|
1802 |
const Register to = rsi; // destination array address |
|
1803 |
const Register count = rdx; // elements count |
|
1804 |
const Register dword_count = rcx; |
|
1805 |
const Register qword_count = count; |
|
1806 |
const Register end_from = from; // source array end address |
|
1807 |
const Register end_to = to; // destination array end address |
|
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1808 |
const Register saved_to = r11; // saved destination array address |
1 | 1809 |
// End pointers are inclusive, and if count is not zero they point |
1810 |
// to the last unit copied: end_to[0] := end_from[0] |
|
1811 |
||
1812 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1813 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1814 |
||
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|
1815 |
if (entry != NULL) { |
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|
1816 |
*entry = __ pc(); |
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|
1817 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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|
1818 |
BLOCK_COMMENT("Entry:"); |
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|
1819 |
} |
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|
1820 |
|
1 | 1821 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
1822 |
// r9 and r10 may be used to save non-volatile registers |
|
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|
1823 |
if (is_oop) { |
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|
1824 |
__ movq(saved_to, to); |
8498 | 1825 |
gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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|
1826 |
} |
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|
1827 |
|
1 | 1828 |
// 'from', 'to' and 'count' are now valid |
1066 | 1829 |
__ movptr(dword_count, count); |
1830 |
__ shrptr(count, 1); // count => qword_count |
|
1 | 1831 |
|
1832 |
// Copy from low to high addresses. Use 'to' as scratch. |
|
1066 | 1833 |
__ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
1834 |
__ lea(end_to, Address(to, qword_count, Address::times_8, -8)); |
|
1835 |
__ negptr(qword_count); |
|
1 | 1836 |
__ jmp(L_copy_32_bytes); |
1837 |
||
1838 |
// Copy trailing qwords |
|
1839 |
__ BIND(L_copy_8_bytes); |
|
1840 |
__ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); |
|
1841 |
__ movq(Address(end_to, qword_count, Address::times_8, 8), rax); |
|
1066 | 1842 |
__ increment(qword_count); |
1 | 1843 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1844 |
||
1845 |
// Check for and copy trailing dword |
|
1846 |
__ BIND(L_copy_4_bytes); |
|
1066 | 1847 |
__ testl(dword_count, 1); // Only byte test since the value is 0 or 1 |
1 | 1848 |
__ jccb(Assembler::zero, L_exit); |
1849 |
__ movl(rax, Address(end_from, 8)); |
|
1850 |
__ movl(Address(end_to, 8), rax); |
|
1851 |
||
1852 |
__ BIND(L_exit); |
|
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|
1853 |
if (is_oop) { |
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|
1854 |
__ leaq(end_to, Address(saved_to, dword_count, Address::times_4, -4)); |
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|
1855 |
gen_write_ref_array_post_barrier(saved_to, end_to, rax); |
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|
1856 |
} |
1 | 1857 |
inc_counter_np(SharedRuntime::_jint_array_copy_ctr); |
1858 |
restore_arg_regs(); |
|
1066 | 1859 |
__ xorptr(rax, rax); // return 0 |
1 | 1860 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1861 |
__ ret(0); |
|
1862 |
||
1863 |
// Copy 32-bytes chunks |
|
1864 |
copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1865 |
__ jmp(L_copy_4_bytes); |
|
1866 |
||
1867 |
return start; |
|
1868 |
} |
|
1869 |
||
1870 |
// Arguments: |
|
1871 |
// aligned - true => Input and output aligned on a HeapWord == 8-byte boundary |
|
1872 |
// ignored |
|
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1873 |
// is_oop - true => oop array, so generate store check code |
1 | 1874 |
// name - stub name string |
1875 |
// |
|
1876 |
// Inputs: |
|
1877 |
// c_rarg0 - source array address |
|
1878 |
// c_rarg1 - destination array address |
|
1879 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1880 |
// |
|
1881 |
// If 'from' and/or 'to' are aligned on 4-byte boundaries, we let |
|
1882 |
// the hardware handle it. The two dwords within qwords that span |
|
1883 |
// cache line boundaries will still be loaded and stored atomicly. |
|
1884 |
// |
|
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|
1885 |
address generate_conjoint_int_oop_copy(bool aligned, bool is_oop, address nooverlap_target, |
8498 | 1886 |
address *entry, const char *name, |
1887 |
bool dest_uninitialized = false) { |
|
1 | 1888 |
__ align(CodeEntryAlignment); |
1889 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1890 |
address start = __ pc(); |
|
1891 |
||
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|
1892 |
Label L_copy_32_bytes, L_copy_8_bytes, L_copy_2_bytes, L_exit; |
1 | 1893 |
const Register from = rdi; // source array address |
1894 |
const Register to = rsi; // destination array address |
|
1895 |
const Register count = rdx; // elements count |
|
1896 |
const Register dword_count = rcx; |
|
1897 |
const Register qword_count = count; |
|
1898 |
||
1899 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1900 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1901 |
||
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|
1902 |
if (entry != NULL) { |
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|
1903 |
*entry = __ pc(); |
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|
1904 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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|
1905 |
BLOCK_COMMENT("Entry:"); |
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|
1906 |
} |
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|
1907 |
|
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|
1908 |
array_overlap_test(nooverlap_target, Address::times_4); |
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|
1909 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
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|
1910 |
// r9 and r10 may be used to save non-volatile registers |
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|
1911 |
|
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|
1912 |
if (is_oop) { |
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|
1913 |
// no registers are destroyed by this call |
8498 | 1914 |
gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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|
1915 |
} |
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|
1916 |
|
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|
1917 |
assert_clean_int(count, rax); // Make sure 'count' is clean int. |
1 | 1918 |
// 'from', 'to' and 'count' are now valid |
1066 | 1919 |
__ movptr(dword_count, count); |
1920 |
__ shrptr(count, 1); // count => qword_count |
|
1 | 1921 |
|
1922 |
// Copy from high to low addresses. Use 'to' as scratch. |
|
1923 |
||
1924 |
// Check for and copy trailing dword |
|
1066 | 1925 |
__ testl(dword_count, 1); |
1 | 1926 |
__ jcc(Assembler::zero, L_copy_32_bytes); |
1927 |
__ movl(rax, Address(from, dword_count, Address::times_4, -4)); |
|
1928 |
__ movl(Address(to, dword_count, Address::times_4, -4), rax); |
|
1929 |
__ jmp(L_copy_32_bytes); |
|
1930 |
||
1931 |
// Copy trailing qwords |
|
1932 |
__ BIND(L_copy_8_bytes); |
|
1933 |
__ movq(rax, Address(from, qword_count, Address::times_8, -8)); |
|
1934 |
__ movq(Address(to, qword_count, Address::times_8, -8), rax); |
|
1066 | 1935 |
__ decrement(qword_count); |
1 | 1936 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
1937 |
||
1938 |
inc_counter_np(SharedRuntime::_jint_array_copy_ctr); |
|
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1939 |
if (is_oop) { |
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|
1940 |
__ jmp(L_exit); |
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|
1941 |
} |
1 | 1942 |
restore_arg_regs(); |
1066 | 1943 |
__ xorptr(rax, rax); // return 0 |
1 | 1944 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1945 |
__ ret(0); |
|
1946 |
||
1947 |
// Copy in 32-bytes chunks |
|
1948 |
copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
1949 |
||
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|
1950 |
inc_counter_np(SharedRuntime::_jint_array_copy_ctr); |
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|
1951 |
__ bind(L_exit); |
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|
1952 |
if (is_oop) { |
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|
1953 |
Register end_to = rdx; |
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|
1954 |
__ leaq(end_to, Address(to, dword_count, Address::times_4, -4)); |
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1955 |
gen_write_ref_array_post_barrier(to, end_to, rax); |
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1956 |
} |
1 | 1957 |
restore_arg_regs(); |
1066 | 1958 |
__ xorptr(rax, rax); // return 0 |
1 | 1959 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
1960 |
__ ret(0); |
|
1961 |
||
1962 |
return start; |
|
1963 |
} |
|
1964 |
||
1965 |
// Arguments: |
|
1966 |
// aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes |
|
1967 |
// ignored |
|
1968 |
// is_oop - true => oop array, so generate store check code |
|
1969 |
// name - stub name string |
|
1970 |
// |
|
1971 |
// Inputs: |
|
1972 |
// c_rarg0 - source array address |
|
1973 |
// c_rarg1 - destination array address |
|
1974 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
1975 |
// |
|
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1976 |
// Side Effects: |
1 | 1977 |
// disjoint_oop_copy_entry or disjoint_long_copy_entry is set to the |
1978 |
// no-overlap entry point used by generate_conjoint_long_oop_copy(). |
|
1979 |
// |
|
8498 | 1980 |
address generate_disjoint_long_oop_copy(bool aligned, bool is_oop, address *entry, |
1981 |
const char *name, bool dest_uninitialized = false) { |
|
1 | 1982 |
__ align(CodeEntryAlignment); |
1983 |
StubCodeMark mark(this, "StubRoutines", name); |
|
1984 |
address start = __ pc(); |
|
1985 |
||
1986 |
Label L_copy_32_bytes, L_copy_8_bytes, L_exit; |
|
1987 |
const Register from = rdi; // source array address |
|
1988 |
const Register to = rsi; // destination array address |
|
1989 |
const Register qword_count = rdx; // elements count |
|
1990 |
const Register end_from = from; // source array end address |
|
1991 |
const Register end_to = rcx; // destination array end address |
|
1992 |
const Register saved_to = to; |
|
1993 |
// End pointers are inclusive, and if count is not zero they point |
|
1994 |
// to the last unit copied: end_to[0] := end_from[0] |
|
1995 |
||
1996 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
1997 |
// Save no-overlap entry point for generate_conjoint_long_oop_copy() |
|
1998 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
1999 |
||
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2000 |
if (entry != NULL) { |
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2001 |
*entry = __ pc(); |
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|
2002 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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|
2003 |
BLOCK_COMMENT("Entry:"); |
1 | 2004 |
} |
2005 |
||
2006 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
|
2007 |
// r9 and r10 may be used to save non-volatile registers |
|
2008 |
// 'from', 'to' and 'qword_count' are now valid |
|
8487
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|
2009 |
if (is_oop) { |
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|
2010 |
// no registers are destroyed by this call |
8498 | 2011 |
gen_write_ref_array_pre_barrier(to, qword_count, dest_uninitialized); |
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|
2012 |
} |
1 | 2013 |
|
2014 |
// Copy from low to high addresses. Use 'to' as scratch. |
|
1066 | 2015 |
__ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
2016 |
__ lea(end_to, Address(to, qword_count, Address::times_8, -8)); |
|
2017 |
__ negptr(qword_count); |
|
1 | 2018 |
__ jmp(L_copy_32_bytes); |
2019 |
||
2020 |
// Copy trailing qwords |
|
2021 |
__ BIND(L_copy_8_bytes); |
|
2022 |
__ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); |
|
2023 |
__ movq(Address(end_to, qword_count, Address::times_8, 8), rax); |
|
1066 | 2024 |
__ increment(qword_count); |
1 | 2025 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
2026 |
||
2027 |
if (is_oop) { |
|
2028 |
__ jmp(L_exit); |
|
2029 |
} else { |
|
2030 |
inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); |
|
2031 |
restore_arg_regs(); |
|
1066 | 2032 |
__ xorptr(rax, rax); // return 0 |
1 | 2033 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
2034 |
__ ret(0); |
|
2035 |
} |
|
2036 |
||
2037 |
// Copy 64-byte chunks |
|
2038 |
copy_32_bytes_forward(end_from, end_to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
2039 |
||
2040 |
if (is_oop) { |
|
2041 |
__ BIND(L_exit); |
|
2042 |
gen_write_ref_array_post_barrier(saved_to, end_to, rax); |
|
2043 |
inc_counter_np(SharedRuntime::_oop_array_copy_ctr); |
|
2044 |
} else { |
|
2045 |
inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); |
|
2046 |
} |
|
2047 |
restore_arg_regs(); |
|
1066 | 2048 |
__ xorptr(rax, rax); // return 0 |
1 | 2049 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
2050 |
__ ret(0); |
|
2051 |
||
2052 |
return start; |
|
2053 |
} |
|
2054 |
||
2055 |
// Arguments: |
|
2056 |
// aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes |
|
2057 |
// ignored |
|
2058 |
// is_oop - true => oop array, so generate store check code |
|
2059 |
// name - stub name string |
|
2060 |
// |
|
2061 |
// Inputs: |
|
2062 |
// c_rarg0 - source array address |
|
2063 |
// c_rarg1 - destination array address |
|
2064 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
2065 |
// |
|
8498 | 2066 |
address generate_conjoint_long_oop_copy(bool aligned, bool is_oop, |
2067 |
address nooverlap_target, address *entry, |
|
2068 |
const char *name, bool dest_uninitialized = false) { |
|
1 | 2069 |
__ align(CodeEntryAlignment); |
2070 |
StubCodeMark mark(this, "StubRoutines", name); |
|
2071 |
address start = __ pc(); |
|
2072 |
||
2073 |
Label L_copy_32_bytes, L_copy_8_bytes, L_exit; |
|
2074 |
const Register from = rdi; // source array address |
|
2075 |
const Register to = rsi; // destination array address |
|
2076 |
const Register qword_count = rdx; // elements count |
|
2077 |
const Register saved_count = rcx; |
|
2078 |
||
2079 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
2080 |
assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. |
|
2081 |
||
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2082 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2083 |
*entry = __ pc(); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2084 |
// caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2085 |
BLOCK_COMMENT("Entry:"); |
1 | 2086 |
} |
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2087 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2088 |
array_overlap_test(nooverlap_target, Address::times_8); |
1 | 2089 |
setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
2090 |
// r9 and r10 may be used to save non-volatile registers |
|
2091 |
// 'from', 'to' and 'qword_count' are now valid |
|
2092 |
if (is_oop) { |
|
2093 |
// Save to and count for store barrier |
|
1066 | 2094 |
__ movptr(saved_count, qword_count); |
1 | 2095 |
// No registers are destroyed by this call |
8498 | 2096 |
gen_write_ref_array_pre_barrier(to, saved_count, dest_uninitialized); |
1 | 2097 |
} |
2098 |
||
2099 |
__ jmp(L_copy_32_bytes); |
|
2100 |
||
2101 |
// Copy trailing qwords |
|
2102 |
__ BIND(L_copy_8_bytes); |
|
2103 |
__ movq(rax, Address(from, qword_count, Address::times_8, -8)); |
|
2104 |
__ movq(Address(to, qword_count, Address::times_8, -8), rax); |
|
1066 | 2105 |
__ decrement(qword_count); |
1 | 2106 |
__ jcc(Assembler::notZero, L_copy_8_bytes); |
2107 |
||
2108 |
if (is_oop) { |
|
2109 |
__ jmp(L_exit); |
|
2110 |
} else { |
|
2111 |
inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); |
|
2112 |
restore_arg_regs(); |
|
1066 | 2113 |
__ xorptr(rax, rax); // return 0 |
1 | 2114 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
2115 |
__ ret(0); |
|
2116 |
} |
|
2117 |
||
2118 |
// Copy in 32-bytes chunks |
|
2119 |
copy_32_bytes_backward(from, to, qword_count, rax, L_copy_32_bytes, L_copy_8_bytes); |
|
2120 |
||
2121 |
if (is_oop) { |
|
2122 |
__ BIND(L_exit); |
|
1066 | 2123 |
__ lea(rcx, Address(to, saved_count, Address::times_8, -8)); |
1 | 2124 |
gen_write_ref_array_post_barrier(to, rcx, rax); |
2125 |
inc_counter_np(SharedRuntime::_oop_array_copy_ctr); |
|
2126 |
} else { |
|
2127 |
inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); |
|
2128 |
} |
|
2129 |
restore_arg_regs(); |
|
1066 | 2130 |
__ xorptr(rax, rax); // return 0 |
1 | 2131 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
2132 |
__ ret(0); |
|
2133 |
||
2134 |
return start; |
|
2135 |
} |
|
2136 |
||
2137 |
||
2138 |
// Helper for generating a dynamic type check. |
|
2139 |
// Smashes no registers. |
|
2140 |
void generate_type_check(Register sub_klass, |
|
2141 |
Register super_check_offset, |
|
2142 |
Register super_klass, |
|
2143 |
Label& L_success) { |
|
2144 |
assert_different_registers(sub_klass, super_check_offset, super_klass); |
|
2145 |
||
2146 |
BLOCK_COMMENT("type_check:"); |
|
2147 |
||
2148 |
Label L_miss; |
|
2149 |
||
2256
82d4e10b7c6b
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
1888
diff
changeset
|
2150 |
__ check_klass_subtype_fast_path(sub_klass, super_klass, noreg, &L_success, &L_miss, NULL, |
82d4e10b7c6b
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
1888
diff
changeset
|
2151 |
super_check_offset); |
82d4e10b7c6b
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
1888
diff
changeset
|
2152 |
__ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg, &L_success, NULL); |
1 | 2153 |
|
2154 |
// Fall through on failure! |
|
2155 |
__ BIND(L_miss); |
|
2156 |
} |
|
2157 |
||
2158 |
// |
|
2159 |
// Generate checkcasting array copy stub |
|
2160 |
// |
|
2161 |
// Input: |
|
2162 |
// c_rarg0 - source array address |
|
2163 |
// c_rarg1 - destination array address |
|
2164 |
// c_rarg2 - element count, treated as ssize_t, can be zero |
|
2165 |
// c_rarg3 - size_t ckoff (super_check_offset) |
|
2166 |
// not Win64 |
|
2167 |
// c_rarg4 - oop ckval (super_klass) |
|
2168 |
// Win64 |
|
2169 |
// rsp+40 - oop ckval (super_klass) |
|
2170 |
// |
|
2171 |
// Output: |
|
2172 |
// rax == 0 - success |
|
2173 |
// rax == -1^K - failure, where K is partial transfer count |
|
2174 |
// |
|
8498 | 2175 |
address generate_checkcast_copy(const char *name, address *entry, |
2176 |
bool dest_uninitialized = false) { |
|
1 | 2177 |
|
2178 |
Label L_load_element, L_store_element, L_do_card_marks, L_done; |
|
2179 |
||
2180 |
// Input registers (after setup_arg_regs) |
|
2181 |
const Register from = rdi; // source array address |
|
2182 |
const Register to = rsi; // destination array address |
|
2183 |
const Register length = rdx; // elements count |
|
2184 |
const Register ckoff = rcx; // super_check_offset |
|
2185 |
const Register ckval = r8; // super_klass |
|
2186 |
||
2187 |
// Registers used as temps (r13, r14 are save-on-entry) |
|
2188 |
const Register end_from = from; // source array end address |
|
2189 |
const Register end_to = r13; // destination array end address |
|
2190 |
const Register count = rdx; // -(count_remaining) |
|
2191 |
const Register r14_length = r14; // saved copy of length |
|
2192 |
// End pointers are inclusive, and if length is not zero they point |
|
2193 |
// to the last unit copied: end_to[0] := end_from[0] |
|
2194 |
||
2195 |
const Register rax_oop = rax; // actual oop copied |
|
2196 |
const Register r11_klass = r11; // oop._klass |
|
2197 |
||
2198 |
//--------------------------------------------------------------- |
|
2199 |
// Assembler stub will be used for this call to arraycopy |
|
2200 |
// if the two arrays are subtypes of Object[] but the |
|
2201 |
// destination array type is not equal to or a supertype |
|
2202 |
// of the source type. Each element must be separately |
|
2203 |
// checked. |
|
2204 |
||
2205 |
__ align(CodeEntryAlignment); |
|
2206 |
StubCodeMark mark(this, "StubRoutines", name); |
|
2207 |
address start = __ pc(); |
|
2208 |
||
2209 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
2210 |
||
2211 |
#ifdef ASSERT |
|
2212 |
// caller guarantees that the arrays really are different |
|
2213 |
// otherwise, we would have to make conjoint checks |
|
2214 |
{ Label L; |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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parents:
189
diff
changeset
|
2215 |
array_overlap_test(L, TIMES_OOP); |
1 | 2216 |
__ stop("checkcast_copy within a single array"); |
2217 |
__ bind(L); |
|
2218 |
} |
|
2219 |
#endif //ASSERT |
|
2220 |
||
2221 |
setup_arg_regs(4); // from => rdi, to => rsi, length => rdx |
|
2222 |
// ckoff => rcx, ckval => r8 |
|
2223 |
// r9 and r10 may be used to save non-volatile registers |
|
2224 |
#ifdef _WIN64 |
|
2225 |
// last argument (#4) is on stack on Win64 |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2226 |
__ movptr(ckval, Address(rsp, 6 * wordSize)); |
1 | 2227 |
#endif |
2228 |
||
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2229 |
// Caller of this entry point must set up the argument registers. |
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2230 |
if (entry != NULL) { |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2231 |
*entry = __ pc(); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2232 |
BLOCK_COMMENT("Entry:"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2233 |
} |
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2234 |
|
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2235 |
// allocate spill slots for r13, r14 |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2236 |
enum { |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2237 |
saved_r13_offset, |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2238 |
saved_r14_offset, |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2239 |
saved_rbp_offset |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2240 |
}; |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2241 |
__ subptr(rsp, saved_rbp_offset * wordSize); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2242 |
__ movptr(Address(rsp, saved_r13_offset * wordSize), r13); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2243 |
__ movptr(Address(rsp, saved_r14_offset * wordSize), r14); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2244 |
|
1 | 2245 |
// check that int operands are properly extended to size_t |
2246 |
assert_clean_int(length, rax); |
|
2247 |
assert_clean_int(ckoff, rax); |
|
2248 |
||
2249 |
#ifdef ASSERT |
|
2250 |
BLOCK_COMMENT("assert consistent ckoff/ckval"); |
|
2251 |
// The ckoff and ckval must be mutually consistent, |
|
2252 |
// even though caller generates both. |
|
2253 |
{ Label L; |
|
2254 |
int sco_offset = (klassOopDesc::header_size() * HeapWordSize + |
|
2255 |
Klass::super_check_offset_offset_in_bytes()); |
|
2256 |
__ cmpl(ckoff, Address(ckval, sco_offset)); |
|
2257 |
__ jcc(Assembler::equal, L); |
|
2258 |
__ stop("super_check_offset inconsistent"); |
|
2259 |
__ bind(L); |
|
2260 |
} |
|
2261 |
#endif //ASSERT |
|
2262 |
||
2263 |
// Loop-invariant addresses. They are exclusive end pointers. |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2264 |
Address end_from_addr(from, length, TIMES_OOP, 0); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2265 |
Address end_to_addr(to, length, TIMES_OOP, 0); |
1 | 2266 |
// Loop-variant addresses. They assume post-incremented count < 0. |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2267 |
Address from_element_addr(end_from, count, TIMES_OOP, 0); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2268 |
Address to_element_addr(end_to, count, TIMES_OOP, 0); |
1 | 2269 |
|
8498 | 2270 |
gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
1 | 2271 |
|
2272 |
// Copy from low to high addresses, indexed from the end of each array. |
|
1066 | 2273 |
__ lea(end_from, end_from_addr); |
2274 |
__ lea(end_to, end_to_addr); |
|
2275 |
__ movptr(r14_length, length); // save a copy of the length |
|
2276 |
assert(length == count, ""); // else fix next line: |
|
2277 |
__ negptr(count); // negate and test the length |
|
1 | 2278 |
__ jcc(Assembler::notZero, L_load_element); |
2279 |
||
2280 |
// Empty array: Nothing to do. |
|
1066 | 2281 |
__ xorptr(rax, rax); // return 0 on (trivial) success |
1 | 2282 |
__ jmp(L_done); |
2283 |
||
2284 |
// ======== begin loop ======== |
|
2285 |
// (Loop is rotated; its entry is L_load_element.) |
|
2286 |
// Loop control: |
|
2287 |
// for (count = -count; count != 0; count++) |
|
2288 |
// Base pointers src, dst are biased by 8*(count-1),to last element. |
|
5249 | 2289 |
__ align(OptoLoopAlignment); |
1 | 2290 |
|
2291 |
__ BIND(L_store_element); |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2292 |
__ store_heap_oop(to_element_addr, rax_oop); // store the oop |
1066 | 2293 |
__ increment(count); // increment the count toward zero |
1 | 2294 |
__ jcc(Assembler::zero, L_do_card_marks); |
2295 |
||
2296 |
// ======== loop entry is here ======== |
|
2297 |
__ BIND(L_load_element); |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2298 |
__ load_heap_oop(rax_oop, from_element_addr); // load the oop |
1066 | 2299 |
__ testptr(rax_oop, rax_oop); |
1 | 2300 |
__ jcc(Assembler::zero, L_store_element); |
2301 |
||
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2302 |
__ load_klass(r11_klass, rax_oop);// query the object klass |
1 | 2303 |
generate_type_check(r11_klass, ckoff, ckval, L_store_element); |
2304 |
// ======== end loop ======== |
|
2305 |
||
2306 |
// It was a real error; we must depend on the caller to finish the job. |
|
2307 |
// Register rdx = -1 * number of *remaining* oops, r14 = *total* oops. |
|
2308 |
// Emit GC store barriers for the oops we have copied (r14 + rdx), |
|
2309 |
// and report their number to the caller. |
|
2310 |
assert_different_registers(rax, r14_length, count, to, end_to, rcx); |
|
1066 | 2311 |
__ lea(end_to, to_element_addr); |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
2312 |
__ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
1394 | 2313 |
gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
1066 | 2314 |
__ movptr(rax, r14_length); // original oops |
2315 |
__ addptr(rax, count); // K = (original - remaining) oops |
|
2316 |
__ notptr(rax); // report (-1^K) to caller |
|
1 | 2317 |
__ jmp(L_done); |
2318 |
||
2319 |
// Come here on success only. |
|
2320 |
__ BIND(L_do_card_marks); |
|
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2338
diff
changeset
|
2321 |
__ addptr(end_to, -heapOopSize); // make an inclusive end pointer |
1394 | 2322 |
gen_write_ref_array_post_barrier(to, end_to, rscratch1); |
1066 | 2323 |
__ xorptr(rax, rax); // return 0 on success |
1 | 2324 |
|
2325 |
// Common exit point (success or failure). |
|
2326 |
__ BIND(L_done); |
|
1066 | 2327 |
__ movptr(r13, Address(rsp, saved_r13_offset * wordSize)); |
2328 |
__ movptr(r14, Address(rsp, saved_r14_offset * wordSize)); |
|
1 | 2329 |
inc_counter_np(SharedRuntime::_checkcast_array_copy_ctr); |
2330 |
restore_arg_regs(); |
|
2331 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
|
2332 |
__ ret(0); |
|
2333 |
||
2334 |
return start; |
|
2335 |
} |
|
2336 |
||
2337 |
// |
|
2338 |
// Generate 'unsafe' array copy stub |
|
2339 |
// Though just as safe as the other stubs, it takes an unscaled |
|
2340 |
// size_t argument instead of an element count. |
|
2341 |
// |
|
2342 |
// Input: |
|
2343 |
// c_rarg0 - source array address |
|
2344 |
// c_rarg1 - destination array address |
|
2345 |
// c_rarg2 - byte count, treated as ssize_t, can be zero |
|
2346 |
// |
|
2347 |
// Examines the alignment of the operands and dispatches |
|
2348 |
// to a long, int, short, or byte copy loop. |
|
2349 |
// |
|
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2350 |
address generate_unsafe_copy(const char *name, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2351 |
address byte_copy_entry, address short_copy_entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2352 |
address int_copy_entry, address long_copy_entry) { |
1 | 2353 |
|
2354 |
Label L_long_aligned, L_int_aligned, L_short_aligned; |
|
2355 |
||
2356 |
// Input registers (before setup_arg_regs) |
|
2357 |
const Register from = c_rarg0; // source array address |
|
2358 |
const Register to = c_rarg1; // destination array address |
|
2359 |
const Register size = c_rarg2; // byte count (size_t) |
|
2360 |
||
2361 |
// Register used as a temp |
|
2362 |
const Register bits = rax; // test copy of low bits |
|
2363 |
||
2364 |
__ align(CodeEntryAlignment); |
|
2365 |
StubCodeMark mark(this, "StubRoutines", name); |
|
2366 |
address start = __ pc(); |
|
2367 |
||
2368 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
2369 |
||
2370 |
// bump this on entry, not on exit: |
|
2371 |
inc_counter_np(SharedRuntime::_unsafe_array_copy_ctr); |
|
2372 |
||
1066 | 2373 |
__ mov(bits, from); |
2374 |
__ orptr(bits, to); |
|
2375 |
__ orptr(bits, size); |
|
1 | 2376 |
|
2377 |
__ testb(bits, BytesPerLong-1); |
|
2378 |
__ jccb(Assembler::zero, L_long_aligned); |
|
2379 |
||
2380 |
__ testb(bits, BytesPerInt-1); |
|
2381 |
__ jccb(Assembler::zero, L_int_aligned); |
|
2382 |
||
2383 |
__ testb(bits, BytesPerShort-1); |
|
2384 |
__ jump_cc(Assembler::notZero, RuntimeAddress(byte_copy_entry)); |
|
2385 |
||
2386 |
__ BIND(L_short_aligned); |
|
1066 | 2387 |
__ shrptr(size, LogBytesPerShort); // size => short_count |
1 | 2388 |
__ jump(RuntimeAddress(short_copy_entry)); |
2389 |
||
2390 |
__ BIND(L_int_aligned); |
|
1066 | 2391 |
__ shrptr(size, LogBytesPerInt); // size => int_count |
1 | 2392 |
__ jump(RuntimeAddress(int_copy_entry)); |
2393 |
||
2394 |
__ BIND(L_long_aligned); |
|
1066 | 2395 |
__ shrptr(size, LogBytesPerLong); // size => qword_count |
1 | 2396 |
__ jump(RuntimeAddress(long_copy_entry)); |
2397 |
||
2398 |
return start; |
|
2399 |
} |
|
2400 |
||
2401 |
// Perform range checks on the proposed arraycopy. |
|
2402 |
// Kills temp, but nothing else. |
|
2403 |
// Also, clean the sign bits of src_pos and dst_pos. |
|
2404 |
void arraycopy_range_checks(Register src, // source array oop (c_rarg0) |
|
2405 |
Register src_pos, // source position (c_rarg1) |
|
2406 |
Register dst, // destination array oo (c_rarg2) |
|
2407 |
Register dst_pos, // destination position (c_rarg3) |
|
2408 |
Register length, |
|
2409 |
Register temp, |
|
2410 |
Label& L_failed) { |
|
2411 |
BLOCK_COMMENT("arraycopy_range_checks:"); |
|
2412 |
||
2413 |
// if (src_pos + length > arrayOop(src)->length()) FAIL; |
|
2414 |
__ movl(temp, length); |
|
2415 |
__ addl(temp, src_pos); // src_pos + length |
|
2416 |
__ cmpl(temp, Address(src, arrayOopDesc::length_offset_in_bytes())); |
|
2417 |
__ jcc(Assembler::above, L_failed); |
|
2418 |
||
2419 |
// if (dst_pos + length > arrayOop(dst)->length()) FAIL; |
|
2420 |
__ movl(temp, length); |
|
2421 |
__ addl(temp, dst_pos); // dst_pos + length |
|
2422 |
__ cmpl(temp, Address(dst, arrayOopDesc::length_offset_in_bytes())); |
|
2423 |
__ jcc(Assembler::above, L_failed); |
|
2424 |
||
2425 |
// Have to clean up high 32-bits of 'src_pos' and 'dst_pos'. |
|
2426 |
// Move with sign extension can be used since they are positive. |
|
2427 |
__ movslq(src_pos, src_pos); |
|
2428 |
__ movslq(dst_pos, dst_pos); |
|
2429 |
||
2430 |
BLOCK_COMMENT("arraycopy_range_checks done"); |
|
2431 |
} |
|
2432 |
||
2433 |
// |
|
2434 |
// Generate generic array copy stubs |
|
2435 |
// |
|
2436 |
// Input: |
|
2437 |
// c_rarg0 - src oop |
|
2438 |
// c_rarg1 - src_pos (32-bits) |
|
2439 |
// c_rarg2 - dst oop |
|
2440 |
// c_rarg3 - dst_pos (32-bits) |
|
2441 |
// not Win64 |
|
2442 |
// c_rarg4 - element count (32-bits) |
|
2443 |
// Win64 |
|
2444 |
// rsp+40 - element count (32-bits) |
|
2445 |
// |
|
2446 |
// Output: |
|
2447 |
// rax == 0 - success |
|
2448 |
// rax == -1^K - failure, where K is partial transfer count |
|
2449 |
// |
|
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2450 |
address generate_generic_copy(const char *name, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2451 |
address byte_copy_entry, address short_copy_entry, |
8876
f82367de21f5
7026307: DEBUG MESSAGE: broken null klass on amd64
iveresov
parents:
8874
diff
changeset
|
2452 |
address int_copy_entry, address oop_copy_entry, |
f82367de21f5
7026307: DEBUG MESSAGE: broken null klass on amd64
iveresov
parents:
8874
diff
changeset
|
2453 |
address long_copy_entry, address checkcast_copy_entry) { |
1 | 2454 |
|
2455 |
Label L_failed, L_failed_0, L_objArray; |
|
2456 |
Label L_copy_bytes, L_copy_shorts, L_copy_ints, L_copy_longs; |
|
2457 |
||
2458 |
// Input registers |
|
2459 |
const Register src = c_rarg0; // source array oop |
|
2460 |
const Register src_pos = c_rarg1; // source position |
|
2461 |
const Register dst = c_rarg2; // destination array oop |
|
2462 |
const Register dst_pos = c_rarg3; // destination position |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2463 |
#ifndef _WIN64 |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2464 |
const Register length = c_rarg4; |
1 | 2465 |
#else |
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2466 |
const Address length(rsp, 6 * wordSize); // elements count is on stack on Win64 |
1 | 2467 |
#endif |
2468 |
||
2469 |
{ int modulus = CodeEntryAlignment; |
|
2470 |
int target = modulus - 5; // 5 = sizeof jmp(L_failed) |
|
2471 |
int advance = target - (__ offset() % modulus); |
|
2472 |
if (advance < 0) advance += modulus; |
|
2473 |
if (advance > 0) __ nop(advance); |
|
2474 |
} |
|
2475 |
StubCodeMark mark(this, "StubRoutines", name); |
|
2476 |
||
2477 |
// Short-hop target to L_failed. Makes for denser prologue code. |
|
2478 |
__ BIND(L_failed_0); |
|
2479 |
__ jmp(L_failed); |
|
2480 |
assert(__ offset() % CodeEntryAlignment == 0, "no further alignment needed"); |
|
2481 |
||
2482 |
__ align(CodeEntryAlignment); |
|
2483 |
address start = __ pc(); |
|
2484 |
||
2485 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
2486 |
||
2487 |
// bump this on entry, not on exit: |
|
2488 |
inc_counter_np(SharedRuntime::_generic_array_copy_ctr); |
|
2489 |
||
2490 |
//----------------------------------------------------------------------- |
|
2491 |
// Assembler stub will be used for this call to arraycopy |
|
2492 |
// if the following conditions are met: |
|
2493 |
// |
|
2494 |
// (1) src and dst must not be null. |
|
2495 |
// (2) src_pos must not be negative. |
|
2496 |
// (3) dst_pos must not be negative. |
|
2497 |
// (4) length must not be negative. |
|
2498 |
// (5) src klass and dst klass should be the same and not NULL. |
|
2499 |
// (6) src and dst should be arrays. |
|
2500 |
// (7) src_pos + length must not exceed length of src. |
|
2501 |
// (8) dst_pos + length must not exceed length of dst. |
|
2502 |
// |
|
2503 |
||
2504 |
// if (src == NULL) return -1; |
|
1066 | 2505 |
__ testptr(src, src); // src oop |
1 | 2506 |
size_t j1off = __ offset(); |
2507 |
__ jccb(Assembler::zero, L_failed_0); |
|
2508 |
||
2509 |
// if (src_pos < 0) return -1; |
|
2510 |
__ testl(src_pos, src_pos); // src_pos (32-bits) |
|
2511 |
__ jccb(Assembler::negative, L_failed_0); |
|
2512 |
||
2513 |
// if (dst == NULL) return -1; |
|
1066 | 2514 |
__ testptr(dst, dst); // dst oop |
1 | 2515 |
__ jccb(Assembler::zero, L_failed_0); |
2516 |
||
2517 |
// if (dst_pos < 0) return -1; |
|
2518 |
__ testl(dst_pos, dst_pos); // dst_pos (32-bits) |
|
2519 |
size_t j4off = __ offset(); |
|
2520 |
__ jccb(Assembler::negative, L_failed_0); |
|
2521 |
||
2522 |
// The first four tests are very dense code, |
|
2523 |
// but not quite dense enough to put four |
|
2524 |
// jumps in a 16-byte instruction fetch buffer. |
|
2525 |
// That's good, because some branch predicters |
|
2526 |
// do not like jumps so close together. |
|
2527 |
// Make sure of this. |
|
2528 |
guarantee(((j1off ^ j4off) & ~15) != 0, "I$ line of 1st & 4th jumps"); |
|
2529 |
||
2530 |
// registers used as temp |
|
2531 |
const Register r11_length = r11; // elements count to copy |
|
2532 |
const Register r10_src_klass = r10; // array klass |
|
2533 |
||
2534 |
// if (length < 0) return -1; |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2535 |
__ movl(r11_length, length); // length (elements count, 32-bits value) |
1 | 2536 |
__ testl(r11_length, r11_length); |
2537 |
__ jccb(Assembler::negative, L_failed_0); |
|
2538 |
||
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2539 |
__ load_klass(r10_src_klass, src); |
1 | 2540 |
#ifdef ASSERT |
2541 |
// assert(src->klass() != NULL); |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2542 |
{ |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2543 |
BLOCK_COMMENT("assert klasses not null {"); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2544 |
Label L1, L2; |
1066 | 2545 |
__ testptr(r10_src_klass, r10_src_klass); |
1 | 2546 |
__ jcc(Assembler::notZero, L2); // it is broken if klass is NULL |
2547 |
__ bind(L1); |
|
2548 |
__ stop("broken null klass"); |
|
2549 |
__ bind(L2); |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2550 |
__ load_klass(rax, dst); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2551 |
__ cmpq(rax, 0); |
1 | 2552 |
__ jcc(Assembler::equal, L1); // this would be broken also |
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2553 |
BLOCK_COMMENT("} assert klasses not null done"); |
1 | 2554 |
} |
2555 |
#endif |
|
2556 |
||
2557 |
// Load layout helper (32-bits) |
|
2558 |
// |
|
2559 |
// |array_tag| | header_size | element_type | |log2_element_size| |
|
2560 |
// 32 30 24 16 8 2 0 |
|
2561 |
// |
|
2562 |
// array_tag: typeArray = 0x3, objArray = 0x2, non-array = 0x0 |
|
2563 |
// |
|
2564 |
||
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2565 |
const int lh_offset = klassOopDesc::header_size() * HeapWordSize + |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2566 |
Klass::layout_helper_offset_in_bytes(); |
1 | 2567 |
|
2568 |
// Handle objArrays completely differently... |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2569 |
const jint objArray_lh = Klass::array_layout_helper(T_OBJECT); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2570 |
__ cmpl(Address(r10_src_klass, lh_offset), objArray_lh); |
1 | 2571 |
__ jcc(Assembler::equal, L_objArray); |
2572 |
||
2573 |
// if (src->klass() != dst->klass()) return -1; |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2574 |
__ load_klass(rax, dst); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2575 |
__ cmpq(r10_src_klass, rax); |
1 | 2576 |
__ jcc(Assembler::notEqual, L_failed); |
2577 |
||
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2578 |
const Register rax_lh = rax; // layout helper |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2579 |
__ movl(rax_lh, Address(r10_src_klass, lh_offset)); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2580 |
|
1 | 2581 |
// if (!src->is_Array()) return -1; |
2582 |
__ cmpl(rax_lh, Klass::_lh_neutral_value); |
|
2583 |
__ jcc(Assembler::greaterEqual, L_failed); |
|
2584 |
||
2585 |
// At this point, it is known to be a typeArray (array_tag 0x3). |
|
2586 |
#ifdef ASSERT |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2587 |
{ |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2588 |
BLOCK_COMMENT("assert primitive array {"); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2589 |
Label L; |
1 | 2590 |
__ cmpl(rax_lh, (Klass::_lh_array_tag_type_value << Klass::_lh_array_tag_shift)); |
2591 |
__ jcc(Assembler::greaterEqual, L); |
|
2592 |
__ stop("must be a primitive array"); |
|
2593 |
__ bind(L); |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2594 |
BLOCK_COMMENT("} assert primitive array done"); |
1 | 2595 |
} |
2596 |
#endif |
|
2597 |
||
2598 |
arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, |
|
2599 |
r10, L_failed); |
|
2600 |
||
2601 |
// typeArrayKlass |
|
2602 |
// |
|
2603 |
// src_addr = (src + array_header_in_bytes()) + (src_pos << log2elemsize); |
|
2604 |
// dst_addr = (dst + array_header_in_bytes()) + (dst_pos << log2elemsize); |
|
2605 |
// |
|
2606 |
||
2607 |
const Register r10_offset = r10; // array offset |
|
2608 |
const Register rax_elsize = rax_lh; // element size |
|
2609 |
||
2610 |
__ movl(r10_offset, rax_lh); |
|
2611 |
__ shrl(r10_offset, Klass::_lh_header_size_shift); |
|
1066 | 2612 |
__ andptr(r10_offset, Klass::_lh_header_size_mask); // array_offset |
2613 |
__ addptr(src, r10_offset); // src array offset |
|
2614 |
__ addptr(dst, r10_offset); // dst array offset |
|
1 | 2615 |
BLOCK_COMMENT("choose copy loop based on element size"); |
2616 |
__ andl(rax_lh, Klass::_lh_log2_element_size_mask); // rax_lh -> rax_elsize |
|
2617 |
||
2618 |
// next registers should be set before the jump to corresponding stub |
|
2619 |
const Register from = c_rarg0; // source array address |
|
2620 |
const Register to = c_rarg1; // destination array address |
|
2621 |
const Register count = c_rarg2; // elements count |
|
2622 |
||
2623 |
// 'from', 'to', 'count' registers should be set in such order |
|
2624 |
// since they are the same as 'src', 'src_pos', 'dst'. |
|
2625 |
||
2626 |
__ BIND(L_copy_bytes); |
|
2627 |
__ cmpl(rax_elsize, 0); |
|
2628 |
__ jccb(Assembler::notEqual, L_copy_shorts); |
|
1066 | 2629 |
__ lea(from, Address(src, src_pos, Address::times_1, 0));// src_addr |
2630 |
__ lea(to, Address(dst, dst_pos, Address::times_1, 0));// dst_addr |
|
2631 |
__ movl2ptr(count, r11_length); // length |
|
1 | 2632 |
__ jump(RuntimeAddress(byte_copy_entry)); |
2633 |
||
2634 |
__ BIND(L_copy_shorts); |
|
2635 |
__ cmpl(rax_elsize, LogBytesPerShort); |
|
2636 |
__ jccb(Assembler::notEqual, L_copy_ints); |
|
1066 | 2637 |
__ lea(from, Address(src, src_pos, Address::times_2, 0));// src_addr |
2638 |
__ lea(to, Address(dst, dst_pos, Address::times_2, 0));// dst_addr |
|
2639 |
__ movl2ptr(count, r11_length); // length |
|
1 | 2640 |
__ jump(RuntimeAddress(short_copy_entry)); |
2641 |
||
2642 |
__ BIND(L_copy_ints); |
|
2643 |
__ cmpl(rax_elsize, LogBytesPerInt); |
|
2644 |
__ jccb(Assembler::notEqual, L_copy_longs); |
|
1066 | 2645 |
__ lea(from, Address(src, src_pos, Address::times_4, 0));// src_addr |
2646 |
__ lea(to, Address(dst, dst_pos, Address::times_4, 0));// dst_addr |
|
2647 |
__ movl2ptr(count, r11_length); // length |
|
1 | 2648 |
__ jump(RuntimeAddress(int_copy_entry)); |
2649 |
||
2650 |
__ BIND(L_copy_longs); |
|
2651 |
#ifdef ASSERT |
|
7431
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2652 |
{ |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2653 |
BLOCK_COMMENT("assert long copy {"); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2654 |
Label L; |
1 | 2655 |
__ cmpl(rax_elsize, LogBytesPerLong); |
2656 |
__ jcc(Assembler::equal, L); |
|
2657 |
__ stop("must be long copy, but elsize is wrong"); |
|
2658 |
__ bind(L); |
|
7431
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changeset
|
2659 |
BLOCK_COMMENT("} assert long copy done"); |
1 | 2660 |
} |
2661 |
#endif |
|
1066 | 2662 |
__ lea(from, Address(src, src_pos, Address::times_8, 0));// src_addr |
2663 |
__ lea(to, Address(dst, dst_pos, Address::times_8, 0));// dst_addr |
|
2664 |
__ movl2ptr(count, r11_length); // length |
|
1 | 2665 |
__ jump(RuntimeAddress(long_copy_entry)); |
2666 |
||
2667 |
// objArrayKlass |
|
2668 |
__ BIND(L_objArray); |
|
7431
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diff
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|
2669 |
// live at this point: r10_src_klass, r11_length, src[_pos], dst[_pos] |
1 | 2670 |
|
2671 |
Label L_plain_copy, L_checkcast_copy; |
|
2672 |
// test array classes for subtyping |
|
7431
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diff
changeset
|
2673 |
__ load_klass(rax, dst); |
e9f07f8aef47
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diff
changeset
|
2674 |
__ cmpq(r10_src_klass, rax); // usual case is exact equality |
1 | 2675 |
__ jcc(Assembler::notEqual, L_checkcast_copy); |
2676 |
||
2677 |
// Identically typed arrays can be copied without element-wise checks. |
|
2678 |
arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, |
|
2679 |
r10, L_failed); |
|
2680 |
||
1066 | 2681 |
__ lea(from, Address(src, src_pos, TIMES_OOP, |
1 | 2682 |
arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // src_addr |
1066 | 2683 |
__ lea(to, Address(dst, dst_pos, TIMES_OOP, |
2684 |
arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // dst_addr |
|
2685 |
__ movl2ptr(count, r11_length); // length |
|
1 | 2686 |
__ BIND(L_plain_copy); |
2687 |
__ jump(RuntimeAddress(oop_copy_entry)); |
|
2688 |
||
2689 |
__ BIND(L_checkcast_copy); |
|
7431
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diff
changeset
|
2690 |
// live at this point: r10_src_klass, r11_length, rax (dst_klass) |
1 | 2691 |
{ |
2692 |
// Before looking at dst.length, make sure dst is also an objArray. |
|
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diff
changeset
|
2693 |
__ cmpl(Address(rax, lh_offset), objArray_lh); |
1 | 2694 |
__ jcc(Assembler::notEqual, L_failed); |
2695 |
||
2696 |
// It is safe to examine both src.length and dst.length. |
|
2697 |
arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, |
|
2698 |
rax, L_failed); |
|
7431
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twisti
parents:
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diff
changeset
|
2699 |
|
e9f07f8aef47
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diff
changeset
|
2700 |
const Register r11_dst_klass = r11; |
360
21d113ecbf6a
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diff
changeset
|
2701 |
__ load_klass(r11_dst_klass, dst); // reload |
1 | 2702 |
|
2703 |
// Marshal the base address arguments now, freeing registers. |
|
1066 | 2704 |
__ lea(from, Address(src, src_pos, TIMES_OOP, |
1 | 2705 |
arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
1066 | 2706 |
__ lea(to, Address(dst, dst_pos, TIMES_OOP, |
1 | 2707 |
arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
7431
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diff
changeset
|
2708 |
__ movl(count, length); // length (reloaded) |
1 | 2709 |
Register sco_temp = c_rarg3; // this register is free now |
2710 |
assert_different_registers(from, to, count, sco_temp, |
|
2711 |
r11_dst_klass, r10_src_klass); |
|
2712 |
assert_clean_int(count, sco_temp); |
|
2713 |
||
2714 |
// Generate the type check. |
|
7431
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diff
changeset
|
2715 |
const int sco_offset = (klassOopDesc::header_size() * HeapWordSize + |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
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diff
changeset
|
2716 |
Klass::super_check_offset_offset_in_bytes()); |
1 | 2717 |
__ movl(sco_temp, Address(r11_dst_klass, sco_offset)); |
2718 |
assert_clean_int(sco_temp, rax); |
|
2719 |
generate_type_check(r10_src_klass, sco_temp, r11_dst_klass, L_plain_copy); |
|
2720 |
||
2721 |
// Fetch destination element klass from the objArrayKlass header. |
|
2722 |
int ek_offset = (klassOopDesc::header_size() * HeapWordSize + |
|
2723 |
objArrayKlass::element_klass_offset_in_bytes()); |
|
1066 | 2724 |
__ movptr(r11_dst_klass, Address(r11_dst_klass, ek_offset)); |
7431
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twisti
parents:
7397
diff
changeset
|
2725 |
__ movl( sco_temp, Address(r11_dst_klass, sco_offset)); |
1 | 2726 |
assert_clean_int(sco_temp, rax); |
2727 |
||
2728 |
// the checkcast_copy loop needs two extra arguments: |
|
2729 |
assert(c_rarg3 == sco_temp, "#3 already in place"); |
|
7431
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twisti
parents:
7397
diff
changeset
|
2730 |
// Set up arguments for checkcast_copy_entry. |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2731 |
setup_arg_regs(4); |
e9f07f8aef47
6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
twisti
parents:
7397
diff
changeset
|
2732 |
__ movptr(r8, r11_dst_klass); // dst.klass.element_klass, r8 is c_rarg4 on Linux/Solaris |
1 | 2733 |
__ jump(RuntimeAddress(checkcast_copy_entry)); |
2734 |
} |
|
2735 |
||
2736 |
__ BIND(L_failed); |
|
1066 | 2737 |
__ xorptr(rax, rax); |
2738 |
__ notptr(rax); // return -1 |
|
1 | 2739 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
2740 |
__ ret(0); |
|
2741 |
||
2742 |
return start; |
|
2743 |
} |
|
2744 |
||
2745 |
void generate_arraycopy_stubs() { |
|
8487
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parents:
7431
diff
changeset
|
2746 |
address entry; |
bf96596f06d2
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diff
changeset
|
2747 |
address entry_jbyte_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
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diff
changeset
|
2748 |
address entry_jshort_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
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diff
changeset
|
2749 |
address entry_jint_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
7431
diff
changeset
|
2750 |
address entry_oop_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
7431
diff
changeset
|
2751 |
address entry_jlong_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
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parents:
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diff
changeset
|
2752 |
address entry_checkcast_arraycopy; |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2753 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2754 |
StubRoutines::_jbyte_disjoint_arraycopy = generate_disjoint_byte_copy(false, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2755 |
"jbyte_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2756 |
StubRoutines::_jbyte_arraycopy = generate_conjoint_byte_copy(false, entry, &entry_jbyte_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2757 |
"jbyte_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2758 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2759 |
StubRoutines::_jshort_disjoint_arraycopy = generate_disjoint_short_copy(false, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2760 |
"jshort_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2761 |
StubRoutines::_jshort_arraycopy = generate_conjoint_short_copy(false, entry, &entry_jshort_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2762 |
"jshort_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2763 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2764 |
StubRoutines::_jint_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, false, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2765 |
"jint_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2766 |
StubRoutines::_jint_arraycopy = generate_conjoint_int_oop_copy(false, false, entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2767 |
&entry_jint_arraycopy, "jint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2768 |
|
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2769 |
StubRoutines::_jlong_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, false, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2770 |
"jlong_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2771 |
StubRoutines::_jlong_arraycopy = generate_conjoint_long_oop_copy(false, false, entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2772 |
&entry_jlong_arraycopy, "jlong_arraycopy"); |
1 | 2773 |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2774 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2775 |
if (UseCompressedOops) { |
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2776 |
StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, true, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2777 |
"oop_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2778 |
StubRoutines::_oop_arraycopy = generate_conjoint_int_oop_copy(false, true, entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2779 |
&entry_oop_arraycopy, "oop_arraycopy"); |
8498 | 2780 |
StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_int_oop_copy(false, true, &entry, |
2781 |
"oop_disjoint_arraycopy_uninit", |
|
2782 |
/*dest_uninitialized*/true); |
|
2783 |
StubRoutines::_oop_arraycopy_uninit = generate_conjoint_int_oop_copy(false, true, entry, |
|
2784 |
NULL, "oop_arraycopy_uninit", |
|
2785 |
/*dest_uninitialized*/true); |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2786 |
} else { |
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2787 |
StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, true, &entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2788 |
"oop_disjoint_arraycopy"); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2789 |
StubRoutines::_oop_arraycopy = generate_conjoint_long_oop_copy(false, true, entry, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2790 |
&entry_oop_arraycopy, "oop_arraycopy"); |
8498 | 2791 |
StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_long_oop_copy(false, true, &entry, |
2792 |
"oop_disjoint_arraycopy_uninit", |
|
2793 |
/*dest_uninitialized*/true); |
|
2794 |
StubRoutines::_oop_arraycopy_uninit = generate_conjoint_long_oop_copy(false, true, entry, |
|
2795 |
NULL, "oop_arraycopy_uninit", |
|
2796 |
/*dest_uninitialized*/true); |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
189
diff
changeset
|
2797 |
} |
1 | 2798 |
|
8498 | 2799 |
StubRoutines::_checkcast_arraycopy = generate_checkcast_copy("checkcast_arraycopy", &entry_checkcast_arraycopy); |
2800 |
StubRoutines::_checkcast_arraycopy_uninit = generate_checkcast_copy("checkcast_arraycopy_uninit", NULL, |
|
2801 |
/*dest_uninitialized*/true); |
|
2802 |
||
8487
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2803 |
StubRoutines::_unsafe_arraycopy = generate_unsafe_copy("unsafe_arraycopy", |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2804 |
entry_jbyte_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2805 |
entry_jshort_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2806 |
entry_jint_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2807 |
entry_jlong_arraycopy); |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2808 |
StubRoutines::_generic_arraycopy = generate_generic_copy("generic_arraycopy", |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2809 |
entry_jbyte_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2810 |
entry_jshort_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2811 |
entry_jint_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2812 |
entry_oop_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2813 |
entry_jlong_arraycopy, |
bf96596f06d2
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
7431
diff
changeset
|
2814 |
entry_checkcast_arraycopy); |
1 | 2815 |
|
6433 | 2816 |
StubRoutines::_jbyte_fill = generate_fill(T_BYTE, false, "jbyte_fill"); |
2817 |
StubRoutines::_jshort_fill = generate_fill(T_SHORT, false, "jshort_fill"); |
|
2818 |
StubRoutines::_jint_fill = generate_fill(T_INT, false, "jint_fill"); |
|
2819 |
StubRoutines::_arrayof_jbyte_fill = generate_fill(T_BYTE, true, "arrayof_jbyte_fill"); |
|
2820 |
StubRoutines::_arrayof_jshort_fill = generate_fill(T_SHORT, true, "arrayof_jshort_fill"); |
|
2821 |
StubRoutines::_arrayof_jint_fill = generate_fill(T_INT, true, "arrayof_jint_fill"); |
|
2822 |
||
1 | 2823 |
// We don't generate specialized code for HeapWord-aligned source |
2824 |
// arrays, so just use the code we've already generated |
|
2825 |
StubRoutines::_arrayof_jbyte_disjoint_arraycopy = StubRoutines::_jbyte_disjoint_arraycopy; |
|
2826 |
StubRoutines::_arrayof_jbyte_arraycopy = StubRoutines::_jbyte_arraycopy; |
|
2827 |
||
2828 |
StubRoutines::_arrayof_jshort_disjoint_arraycopy = StubRoutines::_jshort_disjoint_arraycopy; |
|
2829 |
StubRoutines::_arrayof_jshort_arraycopy = StubRoutines::_jshort_arraycopy; |
|
2830 |
||
2831 |
StubRoutines::_arrayof_jint_disjoint_arraycopy = StubRoutines::_jint_disjoint_arraycopy; |
|
2832 |
StubRoutines::_arrayof_jint_arraycopy = StubRoutines::_jint_arraycopy; |
|
2833 |
||
2834 |
StubRoutines::_arrayof_jlong_disjoint_arraycopy = StubRoutines::_jlong_disjoint_arraycopy; |
|
2835 |
StubRoutines::_arrayof_jlong_arraycopy = StubRoutines::_jlong_arraycopy; |
|
2836 |
||
2837 |
StubRoutines::_arrayof_oop_disjoint_arraycopy = StubRoutines::_oop_disjoint_arraycopy; |
|
2838 |
StubRoutines::_arrayof_oop_arraycopy = StubRoutines::_oop_arraycopy; |
|
8498 | 2839 |
|
2840 |
StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = StubRoutines::_oop_disjoint_arraycopy_uninit; |
|
2841 |
StubRoutines::_arrayof_oop_arraycopy_uninit = StubRoutines::_oop_arraycopy_uninit; |
|
1 | 2842 |
} |
2843 |
||
4645
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2844 |
void generate_math_stubs() { |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2845 |
{ |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2846 |
StubCodeMark mark(this, "StubRoutines", "log"); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2847 |
StubRoutines::_intrinsic_log = (double (*)(double)) __ pc(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2848 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2849 |
__ subq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2850 |
__ movdbl(Address(rsp, 0), xmm0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2851 |
__ fld_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2852 |
__ flog(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2853 |
__ fstp_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2854 |
__ movdbl(xmm0, Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2855 |
__ addq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2856 |
__ ret(0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2857 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2858 |
{ |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2859 |
StubCodeMark mark(this, "StubRoutines", "log10"); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2860 |
StubRoutines::_intrinsic_log10 = (double (*)(double)) __ pc(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2861 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2862 |
__ subq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2863 |
__ movdbl(Address(rsp, 0), xmm0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2864 |
__ fld_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2865 |
__ flog10(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2866 |
__ fstp_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2867 |
__ movdbl(xmm0, Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2868 |
__ addq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2869 |
__ ret(0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2870 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2871 |
{ |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2872 |
StubCodeMark mark(this, "StubRoutines", "sin"); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2873 |
StubRoutines::_intrinsic_sin = (double (*)(double)) __ pc(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2874 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2875 |
__ subq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2876 |
__ movdbl(Address(rsp, 0), xmm0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2877 |
__ fld_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2878 |
__ trigfunc('s'); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2879 |
__ fstp_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2880 |
__ movdbl(xmm0, Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2881 |
__ addq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2882 |
__ ret(0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2883 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2884 |
{ |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2885 |
StubCodeMark mark(this, "StubRoutines", "cos"); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2886 |
StubRoutines::_intrinsic_cos = (double (*)(double)) __ pc(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2887 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2888 |
__ subq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2889 |
__ movdbl(Address(rsp, 0), xmm0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2890 |
__ fld_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2891 |
__ trigfunc('c'); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2892 |
__ fstp_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2893 |
__ movdbl(xmm0, Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2894 |
__ addq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2895 |
__ ret(0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2896 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2897 |
{ |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2898 |
StubCodeMark mark(this, "StubRoutines", "tan"); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2899 |
StubRoutines::_intrinsic_tan = (double (*)(double)) __ pc(); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2900 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2901 |
__ subq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2902 |
__ movdbl(Address(rsp, 0), xmm0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2903 |
__ fld_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2904 |
__ trigfunc('t'); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2905 |
__ fstp_d(Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2906 |
__ movdbl(xmm0, Address(rsp, 0)); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2907 |
__ addq(rsp, 8); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2908 |
__ ret(0); |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2909 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2910 |
|
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2911 |
// The intrinsic version of these seem to return the same value as |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2912 |
// the strict version. |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2913 |
StubRoutines::_intrinsic_exp = SharedRuntime::dexp; |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2914 |
StubRoutines::_intrinsic_pow = SharedRuntime::dpow; |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2915 |
} |
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
2916 |
|
1 | 2917 |
#undef __ |
2918 |
#define __ masm-> |
|
2919 |
||
2920 |
// Continuation point for throwing of implicit exceptions that are |
|
2921 |
// not handled in the current activation. Fabricates an exception |
|
2922 |
// oop and initiates normal exception dispatching in this |
|
2923 |
// frame. Since we need to preserve callee-saved values (currently |
|
2924 |
// only for C2, but done for C1 as well) we need a callee-saved oop |
|
2925 |
// map and therefore have to make these stubs into RuntimeStubs |
|
2926 |
// rather than BufferBlobs. If the compiler needs all registers to |
|
2927 |
// be preserved between the fault point and the exception handler |
|
2928 |
// then it must assume responsibility for that in |
|
2929 |
// AbstractCompiler::continuation_for_implicit_null_exception or |
|
2930 |
// continuation_for_implicit_division_by_zero_exception. All other |
|
2931 |
// implicit exceptions (e.g., NullPointerException or |
|
2932 |
// AbstractMethodError on entry) are either at call sites or |
|
2933 |
// otherwise assume that stack unwinding will be initiated, so |
|
2934 |
// caller saved registers were assumed volatile in the compiler. |
|
2935 |
address generate_throw_exception(const char* name, |
|
2936 |
address runtime_entry, |
|
2937 |
bool restore_saved_exception_pc) { |
|
2938 |
// Information about frame layout at time of blocking runtime call. |
|
2939 |
// Note that we only have to preserve callee-saved registers since |
|
2940 |
// the compilers are responsible for supplying a continuation point |
|
2941 |
// if they expect all registers to be preserved. |
|
2942 |
enum layout { |
|
2943 |
rbp_off = frame::arg_reg_save_area_bytes/BytesPerInt, |
|
2944 |
rbp_off2, |
|
2945 |
return_off, |
|
2946 |
return_off2, |
|
2947 |
framesize // inclusive of return address |
|
2948 |
}; |
|
2949 |
||
2950 |
int insts_size = 512; |
|
2951 |
int locs_size = 64; |
|
2952 |
||
2953 |
CodeBuffer code(name, insts_size, locs_size); |
|
2954 |
OopMapSet* oop_maps = new OopMapSet(); |
|
2955 |
MacroAssembler* masm = new MacroAssembler(&code); |
|
2956 |
||
2957 |
address start = __ pc(); |
|
2958 |
||
2959 |
// This is an inlined and slightly modified version of call_VM |
|
2960 |
// which has the ability to fetch the return PC out of |
|
2961 |
// thread-local storage and also sets up last_Java_sp slightly |
|
2962 |
// differently than the real call_VM |
|
2963 |
if (restore_saved_exception_pc) { |
|
1066 | 2964 |
__ movptr(rax, |
2965 |
Address(r15_thread, |
|
2966 |
in_bytes(JavaThread::saved_exception_pc_offset()))); |
|
2967 |
__ push(rax); |
|
1 | 2968 |
} |
2969 |
||
2970 |
__ enter(); // required for proper stackwalking of RuntimeStub frame |
|
2971 |
||
2972 |
assert(is_even(framesize/2), "sp not 16-byte aligned"); |
|
2973 |
||
2974 |
// return address and rbp are already in place |
|
1066 | 2975 |
__ subptr(rsp, (framesize-4) << LogBytesPerInt); // prolog |
1 | 2976 |
|
2977 |
int frame_complete = __ pc() - start; |
|
2978 |
||
2979 |
// Set up last_Java_sp and last_Java_fp |
|
2980 |
__ set_last_Java_frame(rsp, rbp, NULL); |
|
2981 |
||
2982 |
// Call runtime |
|
1066 | 2983 |
__ movptr(c_rarg0, r15_thread); |
1 | 2984 |
BLOCK_COMMENT("call runtime_entry"); |
2985 |
__ call(RuntimeAddress(runtime_entry)); |
|
2986 |
||
2987 |
// Generate oop map |
|
2988 |
OopMap* map = new OopMap(framesize, 0); |
|
2989 |
||
2990 |
oop_maps->add_gc_map(__ pc() - start, map); |
|
2991 |
||
2992 |
__ reset_last_Java_frame(true, false); |
|
2993 |
||
2994 |
__ leave(); // required for proper stackwalking of RuntimeStub frame |
|
2995 |
||
2996 |
// check for pending exceptions |
|
2997 |
#ifdef ASSERT |
|
2998 |
Label L; |
|
1066 | 2999 |
__ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), |
3000 |
(int32_t) NULL_WORD); |
|
1 | 3001 |
__ jcc(Assembler::notEqual, L); |
3002 |
__ should_not_reach_here(); |
|
3003 |
__ bind(L); |
|
3004 |
#endif // ASSERT |
|
3005 |
__ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); |
|
3006 |
||
3007 |
||
3008 |
// codeBlob framesize is in words (not VMRegImpl::slot_size) |
|
3009 |
RuntimeStub* stub = |
|
3010 |
RuntimeStub::new_runtime_stub(name, |
|
3011 |
&code, |
|
3012 |
frame_complete, |
|
3013 |
(framesize >> (LogBytesPerWord - LogBytesPerInt)), |
|
3014 |
oop_maps, false); |
|
3015 |
return stub->entry_point(); |
|
3016 |
} |
|
3017 |
||
3018 |
// Initialization |
|
3019 |
void generate_initial() { |
|
3020 |
// Generates all stubs and initializes the entry points |
|
3021 |
||
3022 |
// This platform-specific stub is needed by generate_call_stub() |
|
1066 | 3023 |
StubRoutines::x86::_mxcsr_std = generate_fp_mask("mxcsr_std", 0x0000000000001F80); |
1 | 3024 |
|
3025 |
// entry points that exist in all platforms Note: This is code |
|
3026 |
// that could be shared among different platforms - however the |
|
3027 |
// benefit seems to be smaller than the disadvantage of having a |
|
3028 |
// much more complicated generator structure. See also comment in |
|
3029 |
// stubRoutines.hpp. |
|
3030 |
||
3031 |
StubRoutines::_forward_exception_entry = generate_forward_exception(); |
|
3032 |
||
3033 |
StubRoutines::_call_stub_entry = |
|
3034 |
generate_call_stub(StubRoutines::_call_stub_return_address); |
|
3035 |
||
3036 |
// is referenced by megamorphic call |
|
3037 |
StubRoutines::_catch_exception_entry = generate_catch_exception(); |
|
3038 |
||
3039 |
// atomic calls |
|
3040 |
StubRoutines::_atomic_xchg_entry = generate_atomic_xchg(); |
|
3041 |
StubRoutines::_atomic_xchg_ptr_entry = generate_atomic_xchg_ptr(); |
|
3042 |
StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg(); |
|
3043 |
StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long(); |
|
3044 |
StubRoutines::_atomic_add_entry = generate_atomic_add(); |
|
3045 |
StubRoutines::_atomic_add_ptr_entry = generate_atomic_add_ptr(); |
|
3046 |
StubRoutines::_fence_entry = generate_orderaccess_fence(); |
|
3047 |
||
3048 |
StubRoutines::_handler_for_unsafe_access_entry = |
|
3049 |
generate_handler_for_unsafe_access(); |
|
3050 |
||
3051 |
// platform dependent |
|
1066 | 3052 |
StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp(); |
3053 |
||
3054 |
StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr(); |
|
1 | 3055 |
} |
3056 |
||
3057 |
void generate_all() { |
|
3058 |
// Generates all stubs and initializes the entry points |
|
3059 |
||
3060 |
// These entry points require SharedInfo::stack0 to be set up in |
|
3061 |
// non-core builds and need to be relocatable, so they each |
|
3062 |
// fabricate a RuntimeStub internally. |
|
3063 |
StubRoutines::_throw_AbstractMethodError_entry = |
|
3064 |
generate_throw_exception("AbstractMethodError throw_exception", |
|
3065 |
CAST_FROM_FN_PTR(address, |
|
3066 |
SharedRuntime:: |
|
3067 |
throw_AbstractMethodError), |
|
3068 |
false); |
|
3069 |
||
189
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3070 |
StubRoutines::_throw_IncompatibleClassChangeError_entry = |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3071 |
generate_throw_exception("IncompatibleClassChangeError throw_exception", |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3072 |
CAST_FROM_FN_PTR(address, |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3073 |
SharedRuntime:: |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3074 |
throw_IncompatibleClassChangeError), |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3075 |
false); |
4248c8e21063
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
1
diff
changeset
|
3076 |
|
1 | 3077 |
StubRoutines::_throw_ArithmeticException_entry = |
3078 |
generate_throw_exception("ArithmeticException throw_exception", |
|
3079 |
CAST_FROM_FN_PTR(address, |
|
3080 |
SharedRuntime:: |
|
3081 |
throw_ArithmeticException), |
|
3082 |
true); |
|
3083 |
||
3084 |
StubRoutines::_throw_NullPointerException_entry = |
|
3085 |
generate_throw_exception("NullPointerException throw_exception", |
|
3086 |
CAST_FROM_FN_PTR(address, |
|
3087 |
SharedRuntime:: |
|
3088 |
throw_NullPointerException), |
|
3089 |
true); |
|
3090 |
||
3091 |
StubRoutines::_throw_NullPointerException_at_call_entry = |
|
3092 |
generate_throw_exception("NullPointerException at call throw_exception", |
|
3093 |
CAST_FROM_FN_PTR(address, |
|
3094 |
SharedRuntime:: |
|
3095 |
throw_NullPointerException_at_call), |
|
3096 |
false); |
|
3097 |
||
3098 |
StubRoutines::_throw_StackOverflowError_entry = |
|
3099 |
generate_throw_exception("StackOverflowError throw_exception", |
|
3100 |
CAST_FROM_FN_PTR(address, |
|
3101 |
SharedRuntime:: |
|
3102 |
throw_StackOverflowError), |
|
3103 |
false); |
|
3104 |
||
3105 |
// entry points that are platform specific |
|
1066 | 3106 |
StubRoutines::x86::_f2i_fixup = generate_f2i_fixup(); |
3107 |
StubRoutines::x86::_f2l_fixup = generate_f2l_fixup(); |
|
3108 |
StubRoutines::x86::_d2i_fixup = generate_d2i_fixup(); |
|
3109 |
StubRoutines::x86::_d2l_fixup = generate_d2l_fixup(); |
|
3110 |
||
3111 |
StubRoutines::x86::_float_sign_mask = generate_fp_mask("float_sign_mask", 0x7FFFFFFF7FFFFFFF); |
|
3112 |
StubRoutines::x86::_float_sign_flip = generate_fp_mask("float_sign_flip", 0x8000000080000000); |
|
3113 |
StubRoutines::x86::_double_sign_mask = generate_fp_mask("double_sign_mask", 0x7FFFFFFFFFFFFFFF); |
|
3114 |
StubRoutines::x86::_double_sign_flip = generate_fp_mask("double_sign_flip", 0x8000000000000000); |
|
1 | 3115 |
|
3116 |
// support for verify_oop (must happen after universe_init) |
|
3117 |
StubRoutines::_verify_oop_subroutine_entry = generate_verify_oop(); |
|
3118 |
||
3119 |
// arraycopy stubs used by compilers |
|
3120 |
generate_arraycopy_stubs(); |
|
4478 | 3121 |
|
4645
0c5f5b94e93a
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
4478
diff
changeset
|
3122 |
generate_math_stubs(); |
1 | 3123 |
} |
3124 |
||
3125 |
public: |
|
3126 |
StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { |
|
3127 |
if (all) { |
|
3128 |
generate_all(); |
|
3129 |
} else { |
|
3130 |
generate_initial(); |
|
3131 |
} |
|
3132 |
} |
|
3133 |
}; // end class declaration |
|
3134 |
||
3135 |
void StubGenerator_generate(CodeBuffer* code, bool all) { |
|
3136 |
StubGenerator g(code, all); |
|
3137 |
} |