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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 1223 // region. Pointer to this region should be passed to a function as an | 1223 // region. Pointer to this region should be passed to a function as an |
| 1224 // implicit first argument. | 1224 // implicit first argument. |
| 1225 #if defined(USING_BSD_ABI) || defined(__MINGW32__) | 1225 #if defined(USING_BSD_ABI) || defined(__MINGW32__) |
| 1226 static const bool kReturnHandlesDirectly = true; | 1226 static const bool kReturnHandlesDirectly = true; |
| 1227 #else | 1227 #else |
| 1228 static const bool kReturnHandlesDirectly = false; | 1228 static const bool kReturnHandlesDirectly = false; |
| 1229 #endif | 1229 #endif |
| 1230 | 1230 |
| 1231 | 1231 |
| 1232 Operand ApiParameterOperand(int index) { | 1232 Operand ApiParameterOperand(int index) { |
| 1233 return Operand(esp, (index + (kReturnHandlesDirectly ? 0 : 1)) * kPointerSize)
; | 1233 return Operand( |
| 1234 esp, (index + (kReturnHandlesDirectly ? 0 : 1)) * kPointerSize); |
| 1234 } | 1235 } |
| 1235 | 1236 |
| 1236 | 1237 |
| 1237 void MacroAssembler::PrepareCallApiFunction(int argc, Register scratch) { | 1238 void MacroAssembler::PrepareCallApiFunction(int argc, Register scratch) { |
| 1238 if (kReturnHandlesDirectly) { | 1239 if (kReturnHandlesDirectly) { |
| 1239 EnterApiExitFrame(argc); | 1240 EnterApiExitFrame(argc); |
| 1240 // When handles are returned directly we don't have to allocate extra | 1241 // When handles are returned directly we don't have to allocate extra |
| 1241 // space for and pass an out parameter. | 1242 // space for and pass an out parameter. |
| 1242 } else { | 1243 } else { |
| 1243 // We allocate two additional slots: return value and pointer to it. | 1244 // We allocate two additional slots: return value and pointer to it. |
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| 1914 | 1915 |
| 1915 // Check that the code was patched as expected. | 1916 // Check that the code was patched as expected. |
| 1916 ASSERT(masm_.pc_ == address_ + size_); | 1917 ASSERT(masm_.pc_ == address_ + size_); |
| 1917 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); | 1918 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); |
| 1918 } | 1919 } |
| 1919 | 1920 |
| 1920 | 1921 |
| 1921 } } // namespace v8::internal | 1922 } } // namespace v8::internal |
| 1922 | 1923 |
| 1923 #endif // V8_TARGET_ARCH_IA32 | 1924 #endif // V8_TARGET_ARCH_IA32 |
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