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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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1211 ASSERT(!kScratchRegister.is(reg)); | 1211 ASSERT(!kScratchRegister.is(reg)); |
1212 __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); | 1212 __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); |
1213 __ push(kScratchRegister); // return value | 1213 __ push(kScratchRegister); // return value |
1214 __ push(kScratchRegister); // return value default | 1214 __ push(kScratchRegister); // return value default |
1215 __ PushAddress(ExternalReference::isolate_address(isolate())); | 1215 __ PushAddress(ExternalReference::isolate_address(isolate())); |
1216 __ push(reg); // holder | 1216 __ push(reg); // holder |
1217 __ push(name()); // name | 1217 __ push(name()); // name |
1218 // Save a pointer to where we pushed the arguments pointer. This will be | 1218 // Save a pointer to where we pushed the arguments pointer. This will be |
1219 // passed as the const PropertyAccessorInfo& to the C++ callback. | 1219 // passed as the const PropertyAccessorInfo& to the C++ callback. |
1220 | 1220 |
1221 Address getter_address = v8::ToCData<Address>(callback->getter()); | |
1222 | |
1223 #if defined(__MINGW64__) || defined(_WIN64) | |
1224 Register getter_arg = r8; | |
1225 Register accessor_info_arg = rdx; | |
1226 Register name_arg = rcx; | |
1227 #else | |
1228 Register getter_arg = rdx; | |
1229 Register accessor_info_arg = rsi; | |
1230 Register name_arg = rdi; | |
1231 #endif | |
1232 | |
1233 ASSERT(!name_arg.is(scratch4())); | |
1234 __ movp(name_arg, rsp); | |
1235 __ PushReturnAddressFrom(scratch4()); | 1221 __ PushReturnAddressFrom(scratch4()); |
1236 | 1222 |
1237 // v8::Arguments::values_ and handler for name. | 1223 // Abi for CallApiGetter |
1238 const int kStackSpace = PropertyCallbackArguments::kArgsLength + 1; | |
1239 | |
1240 // Allocate v8::AccessorInfo in non-GCed stack space. | |
1241 const int kArgStackSpace = 1; | |
1242 | |
1243 __ PrepareCallApiFunction(kArgStackSpace); | |
1244 __ lea(rax, Operand(name_arg, 1 * kPointerSize)); | |
1245 | |
1246 // v8::PropertyAccessorInfo::args_. | |
1247 __ movp(StackSpaceOperand(0), rax); | |
1248 | |
1249 // The context register (rsi) has been saved in PrepareCallApiFunction and | |
1250 // could be used to pass arguments. | |
1251 __ lea(accessor_info_arg, StackSpaceOperand(0)); | |
1252 | |
1253 Address thunk_address = FUNCTION_ADDR(&InvokeAccessorGetterCallback); | |
1254 | |
1255 Register api_function_address = r8; | 1224 Register api_function_address = r8; |
1256 // It's okay if api_function_address == getter_arg | 1225 Address getter_address = v8::ToCData<Address>(callback->getter()); |
1257 // but not accessor_info_arg or name_arg | |
1258 ASSERT(!api_function_address.is(accessor_info_arg) && | |
1259 !api_function_address.is(name_arg)); | |
1260 | |
1261 __ Move(api_function_address, getter_address, RelocInfo::EXTERNAL_REFERENCE); | 1226 __ Move(api_function_address, getter_address, RelocInfo::EXTERNAL_REFERENCE); |
1262 | 1227 |
1263 // The name handler is counted as an argument. | 1228 CallApiGetterStub stub; |
1264 StackArgumentsAccessor args(rbp, PropertyCallbackArguments::kArgsLength); | 1229 __ TailCallStub(&stub); |
1265 Operand return_value_operand = args.GetArgumentOperand( | |
1266 PropertyCallbackArguments::kArgsLength - 1 - | |
1267 PropertyCallbackArguments::kReturnValueOffset); | |
1268 __ CallApiFunctionAndReturn(api_function_address, | |
1269 thunk_address, | |
1270 getter_arg, | |
1271 kStackSpace, | |
1272 return_value_operand, | |
1273 NULL); | |
1274 } | 1230 } |
1275 | 1231 |
1276 | 1232 |
1277 void LoadStubCompiler::GenerateLoadConstant(Handle<Object> value) { | 1233 void LoadStubCompiler::GenerateLoadConstant(Handle<Object> value) { |
1278 // Return the constant value. | 1234 // Return the constant value. |
1279 __ Move(rax, value); | 1235 __ Move(rax, value); |
1280 __ ret(0); | 1236 __ ret(0); |
1281 } | 1237 } |
1282 | 1238 |
1283 | 1239 |
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2022 // ----------------------------------- | 1978 // ----------------------------------- |
2023 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 1979 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
2024 } | 1980 } |
2025 | 1981 |
2026 | 1982 |
2027 #undef __ | 1983 #undef __ |
2028 | 1984 |
2029 } } // namespace v8::internal | 1985 } } // namespace v8::internal |
2030 | 1986 |
2031 #endif // V8_TARGET_ARCH_X64 | 1987 #endif // V8_TARGET_ARCH_X64 |
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