13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifndef V8_MACRO_ASSEMBLER_H_ 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_MACRO_ASSEMBLER_H_ 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Helper types to make boolean flag easier to read at call-site. 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockenum InvokeFlag { 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CALL_FUNCTION, 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block JUMP_FUNCTION 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 39402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu// Invalid depth in prototype chain. 40402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescuconst int kInvalidProtoDepth = -1; 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#if V8_TARGET_ARCH_IA32 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "assembler.h" 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "ia32/assembler-ia32.h" 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "ia32/assembler-ia32-inl.h" 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "code.h" // must be after assembler_*.h 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "ia32/macro-assembler-ia32.h" 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#elif V8_TARGET_ARCH_X64 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "assembler.h" 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "x64/assembler-x64.h" 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "x64/assembler-x64-inl.h" 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "code.h" // must be after assembler_*.h 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "x64/macro-assembler-x64.h" 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#elif V8_TARGET_ARCH_ARM 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "arm/constants-arm.h" 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "assembler.h" 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "arm/assembler-arm.h" 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "arm/assembler-arm-inl.h" 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "code.h" // must be after assembler_*.h 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "arm/macro-assembler-arm.h" 613100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#elif V8_TARGET_ARCH_MIPS 623100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "mips/constants-mips.h" 633100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "assembler.h" 643100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "mips/assembler-mips.h" 653100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "mips/assembler-mips-inl.h" 663100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "code.h" // must be after assembler_*.h 673100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu#include "mips/macro-assembler-mips.h" 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#else 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#error Unsupported target architecture. 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 7280d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsennamespace v8 { 7380d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsennamespace internal { 7480d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass FrameScope { 763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explicit FrameScope(MacroAssembler* masm, StackFrame::Type type) 783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : masm_(masm), type_(type), old_has_frame_(masm->has_frame()) { 793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm->set_has_frame(true); 803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type != StackFrame::MANUAL && type_ != StackFrame::NONE) { 813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm->EnterFrame(type); 823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ~FrameScope() { 863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (type_ != StackFrame::MANUAL && type_ != StackFrame::NONE) { 873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm_->LeaveFrame(type_); 883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm_->set_has_frame(old_has_frame_); 903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Normally we generate the leave-frame code when this object goes 933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // out of scope. Sometimes we may need to generate the code somewhere else 943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // in addition. Calling this will achieve that, but the object stays in 953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // scope, the MacroAssembler is still marked as being in a frame scope, and 963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the code will be generated again when it goes out of scope. 973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void GenerateLeaveFrame() { 983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm_->LeaveFrame(type_); 993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 1023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MacroAssembler* masm_; 1033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch StackFrame::Type type_; 1043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool old_has_frame_; 1053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 1063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass AllowExternalCallThatCantCauseGC: public FrameScope { 1093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 1103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explicit AllowExternalCallThatCantCauseGC(MacroAssembler* masm) 1113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : FrameScope(masm, StackFrame::NONE) { } 1123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 1133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass NoCurrentFrameScope { 1163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 1173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explicit NoCurrentFrameScope(MacroAssembler* masm) 1183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : masm_(masm), saved_(masm->has_frame()) { 1193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm->set_has_frame(false); 1203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ~NoCurrentFrameScope() { 1233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch masm_->set_has_frame(saved_); 1243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 1273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MacroAssembler* masm_; 1283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool saved_; 1293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 1303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13280d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen// Support for "structured" code comments. 13380d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen#ifdef DEBUG 13480d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 13580d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsenclass Comment { 13680d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen public: 13780d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen Comment(MacroAssembler* masm, const char* msg); 13880d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen ~Comment(); 13980d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 14080d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen private: 14180d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen MacroAssembler* masm_; 14280d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen const char* msg_; 14380d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen}; 14480d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 14580d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen#else 14680d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 14780d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsenclass Comment { 14880d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen public: 14980d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen Comment(MacroAssembler*, const char*) {} 15080d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen}; 15180d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 15280d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen#endif // DEBUG 15380d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 15480d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen} } // namespace v8::internal 15580d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // V8_MACRO_ASSEMBLER_H_ 157