1e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch// Copyright 2010 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_X64_FRAMES_X64_H_ 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_X64_FRAMES_X64_H_ 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockstatic const int kNumRegs = 16; 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic const RegList kJSCallerSaved = 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1 << 0 | // rax 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1 << 1 | // rcx 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1 << 2 | // rdx 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1 << 3 | // rbx - used as a caller-saved register in JavaScript code 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1 << 7; // rdi - callee function 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic const int kNumJSCallerSaved = 5; 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocktypedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 46b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Number of registers for which space is reserved in safepoints. 471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockstatic const int kNumSafepointRegisters = 16; 48b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 49b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// ---------------------------------------------------- 50b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass StackHandlerConstants : public AllStatic { 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kNextOffset = 0 * kPointerSize; 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kFPOffset = 1 * kPointerSize; 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kStateOffset = 2 * kPointerSize; 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kPCOffset = 3 * kPointerSize; 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kSize = 4 * kPointerSize; 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass EntryFrameConstants : public AllStatic { 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 648defd9ff6930b4e24729971a61cf7469daf119beSteve Block#ifdef _WIN64 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerFPOffset = -10 * kPointerSize; 668defd9ff6930b4e24729971a61cf7469daf119beSteve Block#else 678defd9ff6930b4e24729971a61cf7469daf119beSteve Block static const int kCallerFPOffset = -8 * kPointerSize; 688defd9ff6930b4e24729971a61cf7469daf119beSteve Block#endif 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kArgvOffset = 6 * kPointerSize; 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass ExitFrameConstants : public AllStatic { 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 75d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block static const int kCodeOffset = -2 * kPointerSize; 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kSPOffset = -1 * kPointerSize; 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerFPOffset = +0 * kPointerSize; 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerPCOffset = +1 * kPointerSize; 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // FP-relative displacement of the caller's SP. It points just 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // below the saved PC. 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerSPDisplacement = +2 * kPointerSize; 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass StandardFrameConstants : public AllStatic { 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kExpressionsOffset = -3 * kPointerSize; 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kMarkerOffset = -2 * kPointerSize; 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kContextOffset = -1 * kPointerSize; 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerFPOffset = 0 * kPointerSize; 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerPCOffset = +1 * kPointerSize; 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCallerSPOffset = +2 * kPointerSize; 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass JavaScriptFrameConstants : public AllStatic { 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // FP-relative. 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kLocal0Offset = StandardFrameConstants::kExpressionsOffset; 1028b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch static const int kLastParameterOffset = +2 * kPointerSize; 103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kFunctionOffset = StandardFrameConstants::kMarkerOffset; 104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Caller SP-relative. 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kParam0Offset = -2 * kPointerSize; 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kReceiverOffset = -1 * kPointerSize; 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass ArgumentsAdaptorFrameConstants : public AllStatic { 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kLengthOffset = StandardFrameConstants::kExpressionsOffset; 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass InternalFrameConstants : public AllStatic { 118a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 119a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kCodeOffset = StandardFrameConstants::kExpressionsOffset; 120a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 121a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline Object* JavaScriptFrame::function_slot_object() const { 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const int offset = JavaScriptFrameConstants::kFunctionOffset; 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return Memory::Object_at(fp() + offset); 126a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 127a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 128a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 130a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // V8_X64_FRAMES_X64_H_ 131