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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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61 if (extra_args == NEEDS_CALLED_FUNCTION) { | 61 if (extra_args == NEEDS_CALLED_FUNCTION) { |
62 num_extra_args = 1; | 62 num_extra_args = 1; |
63 __ push(r1); | 63 __ push(r1); |
64 } else { | 64 } else { |
65 ASSERT(extra_args == NO_EXTRA_ARGUMENTS); | 65 ASSERT(extra_args == NO_EXTRA_ARGUMENTS); |
66 } | 66 } |
67 | 67 |
68 // JumpToExternalReference expects r0 to contain the number of arguments | 68 // JumpToExternalReference expects r0 to contain the number of arguments |
69 // including the receiver and the extra arguments. | 69 // including the receiver and the extra arguments. |
70 __ add(r0, r0, Operand(num_extra_args + 1)); | 70 __ add(r0, r0, Operand(num_extra_args + 1)); |
71 __ JumpToExternalReference(ExternalReference(id)); | 71 __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
72 } | 72 } |
73 | 73 |
74 | 74 |
75 // Load the built-in Array function from the current context. | 75 // Load the built-in Array function from the current context. |
76 static void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) { | 76 static void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) { |
77 // Load the global context. | 77 // Load the global context. |
78 | 78 |
79 __ ldr(result, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 79 __ ldr(result, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
80 __ ldr(result, | 80 __ ldr(result, |
81 FieldMemOperand(result, GlobalObject::kGlobalContextOffset)); | 81 FieldMemOperand(result, GlobalObject::kGlobalContextOffset)); |
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435 __ CompareObjectType(r2, r3, r4, MAP_TYPE); | 435 __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
436 __ Assert(eq, "Unexpected initial map for Array function"); | 436 __ Assert(eq, "Unexpected initial map for Array function"); |
437 } | 437 } |
438 | 438 |
439 // Run the native code for the Array function called as a normal function. | 439 // Run the native code for the Array function called as a normal function. |
440 ArrayNativeCode(masm, &generic_array_code); | 440 ArrayNativeCode(masm, &generic_array_code); |
441 | 441 |
442 // Jump to the generic array code if the specialized code cannot handle | 442 // Jump to the generic array code if the specialized code cannot handle |
443 // the construction. | 443 // the construction. |
444 __ bind(&generic_array_code); | 444 __ bind(&generic_array_code); |
445 Code* code = Isolate::Current()->builtins()->builtin( | 445 Code* code = masm->isolate()->builtins()->builtin( |
446 Builtins::ArrayCodeGeneric); | 446 Builtins::ArrayCodeGeneric); |
447 Handle<Code> array_code(code); | 447 Handle<Code> array_code(code); |
448 __ Jump(array_code, RelocInfo::CODE_TARGET); | 448 __ Jump(array_code, RelocInfo::CODE_TARGET); |
449 } | 449 } |
450 | 450 |
451 | 451 |
452 void Builtins::Generate_ArrayConstructCode(MacroAssembler* masm) { | 452 void Builtins::Generate_ArrayConstructCode(MacroAssembler* masm) { |
453 // ----------- S t a t e ------------- | 453 // ----------- S t a t e ------------- |
454 // -- r0 : number of arguments | 454 // -- r0 : number of arguments |
455 // -- r1 : constructor function | 455 // -- r1 : constructor function |
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468 __ CompareObjectType(r2, r3, r4, MAP_TYPE); | 468 __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
469 __ Assert(eq, "Unexpected initial map for Array function"); | 469 __ Assert(eq, "Unexpected initial map for Array function"); |
470 } | 470 } |
471 | 471 |
472 // Run the native code for the Array function called as a constructor. | 472 // Run the native code for the Array function called as a constructor. |
473 ArrayNativeCode(masm, &generic_constructor); | 473 ArrayNativeCode(masm, &generic_constructor); |
474 | 474 |
475 // Jump to the generic construct code in case the specialized code cannot | 475 // Jump to the generic construct code in case the specialized code cannot |
476 // handle the construction. | 476 // handle the construction. |
477 __ bind(&generic_constructor); | 477 __ bind(&generic_constructor); |
478 Code* code = Isolate::Current()->builtins()->builtin( | 478 Code* code = masm->isolate()->builtins()->builtin( |
479 Builtins::JSConstructStubGeneric); | 479 Builtins::JSConstructStubGeneric); |
480 Handle<Code> generic_construct_stub(code); | 480 Handle<Code> generic_construct_stub(code); |
481 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); | 481 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
482 } | 482 } |
483 | 483 |
484 | 484 |
485 void Builtins::Generate_StringConstructCode(MacroAssembler* masm) { | 485 void Builtins::Generate_StringConstructCode(MacroAssembler* masm) { |
486 // ----------- S t a t e ------------- | 486 // ----------- S t a t e ------------- |
487 // -- r0 : number of arguments | 487 // -- r0 : number of arguments |
488 // -- r1 : constructor function | 488 // -- r1 : constructor function |
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628 __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 628 __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
629 __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kConstructStubOffset)); | 629 __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kConstructStubOffset)); |
630 __ add(pc, r2, Operand(Code::kHeaderSize - kHeapObjectTag)); | 630 __ add(pc, r2, Operand(Code::kHeaderSize - kHeapObjectTag)); |
631 | 631 |
632 // r0: number of arguments | 632 // r0: number of arguments |
633 // r1: called object | 633 // r1: called object |
634 __ bind(&non_function_call); | 634 __ bind(&non_function_call); |
635 // Set expected number of arguments to zero (not changing r0). | 635 // Set expected number of arguments to zero (not changing r0). |
636 __ mov(r2, Operand(0, RelocInfo::NONE)); | 636 __ mov(r2, Operand(0, RelocInfo::NONE)); |
637 __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR); | 637 __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR); |
638 __ Jump(Handle<Code>(Isolate::Current()->builtins()->builtin( | 638 __ Jump(Handle<Code>(masm->isolate()->builtins()->builtin( |
639 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET); | 639 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET); |
640 } | 640 } |
641 | 641 |
642 | 642 |
643 static void Generate_JSConstructStubHelper(MacroAssembler* masm, | 643 static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
644 bool is_api_function, | 644 bool is_api_function, |
645 bool count_constructions) { | 645 bool count_constructions) { |
646 // Should never count constructions for api objects. | 646 // Should never count constructions for api objects. |
647 ASSERT(!is_api_function || !count_constructions); | 647 ASSERT(!is_api_function || !count_constructions); |
648 | 648 |
649 // Enter a construct frame. | 649 // Enter a construct frame. |
650 __ EnterConstructFrame(); | 650 __ EnterConstructFrame(); |
651 | 651 |
652 // Preserve the two incoming parameters on the stack. | 652 // Preserve the two incoming parameters on the stack. |
653 __ mov(r0, Operand(r0, LSL, kSmiTagSize)); | 653 __ mov(r0, Operand(r0, LSL, kSmiTagSize)); |
654 __ push(r0); // Smi-tagged arguments count. | 654 __ push(r0); // Smi-tagged arguments count. |
655 __ push(r1); // Constructor function. | 655 __ push(r1); // Constructor function. |
656 | 656 |
657 // Try to allocate the object without transitioning into C code. If any of the | 657 // Try to allocate the object without transitioning into C code. If any of the |
658 // preconditions is not met, the code bails out to the runtime call. | 658 // preconditions is not met, the code bails out to the runtime call. |
659 Label rt_call, allocated; | 659 Label rt_call, allocated; |
660 if (FLAG_inline_new) { | 660 if (FLAG_inline_new) { |
661 Label undo_allocation; | 661 Label undo_allocation; |
662 #ifdef ENABLE_DEBUGGER_SUPPORT | 662 #ifdef ENABLE_DEBUGGER_SUPPORT |
663 ExternalReference debug_step_in_fp = | 663 ExternalReference debug_step_in_fp = |
664 ExternalReference::debug_step_in_fp_address(); | 664 ExternalReference::debug_step_in_fp_address(masm->isolate()); |
665 __ mov(r2, Operand(debug_step_in_fp)); | 665 __ mov(r2, Operand(debug_step_in_fp)); |
666 __ ldr(r2, MemOperand(r2)); | 666 __ ldr(r2, MemOperand(r2)); |
667 __ tst(r2, r2); | 667 __ tst(r2, r2); |
668 __ b(ne, &rt_call); | 668 __ b(ne, &rt_call); |
669 #endif | 669 #endif |
670 | 670 |
671 // Load the initial map and verify that it is in fact a map. | 671 // Load the initial map and verify that it is in fact a map. |
672 // r1: constructor function | 672 // r1: constructor function |
673 __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); | 673 __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
674 __ tst(r2, Operand(kSmiTagMask)); | 674 __ tst(r2, Operand(kSmiTagMask)); |
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901 __ bind(&entry); | 901 __ bind(&entry); |
902 __ sub(r3, r3, Operand(2), SetCC); | 902 __ sub(r3, r3, Operand(2), SetCC); |
903 __ b(ge, &loop); | 903 __ b(ge, &loop); |
904 | 904 |
905 // Call the function. | 905 // Call the function. |
906 // r0: number of arguments | 906 // r0: number of arguments |
907 // r1: constructor function | 907 // r1: constructor function |
908 if (is_api_function) { | 908 if (is_api_function) { |
909 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | 909 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
910 Handle<Code> code = Handle<Code>( | 910 Handle<Code> code = Handle<Code>( |
911 Isolate::Current()->builtins()->builtin( | 911 masm->isolate()->builtins()->builtin( |
912 Builtins::HandleApiCallConstruct)); | 912 Builtins::HandleApiCallConstruct)); |
913 ParameterCount expected(0); | 913 ParameterCount expected(0); |
914 __ InvokeCode(code, expected, expected, | 914 __ InvokeCode(code, expected, expected, |
915 RelocInfo::CODE_TARGET, CALL_FUNCTION); | 915 RelocInfo::CODE_TARGET, CALL_FUNCTION); |
916 } else { | 916 } else { |
917 ParameterCount actual(r0); | 917 ParameterCount actual(r0); |
918 __ InvokeFunction(r1, actual, CALL_FUNCTION); | 918 __ InvokeFunction(r1, actual, CALL_FUNCTION); |
919 } | 919 } |
920 | 920 |
921 // Pop the function from the stack. | 921 // Pop the function from the stack. |
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999 // Clear the context before we push it when entering the JS frame. | 999 // Clear the context before we push it when entering the JS frame. |
1000 __ mov(cp, Operand(0, RelocInfo::NONE)); | 1000 __ mov(cp, Operand(0, RelocInfo::NONE)); |
1001 | 1001 |
1002 // Enter an internal frame. | 1002 // Enter an internal frame. |
1003 __ EnterInternalFrame(); | 1003 __ EnterInternalFrame(); |
1004 | 1004 |
1005 // Set up the context from the function argument. | 1005 // Set up the context from the function argument. |
1006 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | 1006 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
1007 | 1007 |
1008 // Set up the roots register. | 1008 // Set up the roots register. |
1009 ExternalReference roots_address = ExternalReference::roots_address(); | 1009 ExternalReference roots_address = |
| 1010 ExternalReference::roots_address(masm->isolate()); |
1010 __ mov(r10, Operand(roots_address)); | 1011 __ mov(r10, Operand(roots_address)); |
1011 | 1012 |
1012 // Push the function and the receiver onto the stack. | 1013 // Push the function and the receiver onto the stack. |
1013 __ push(r1); | 1014 __ push(r1); |
1014 __ push(r2); | 1015 __ push(r2); |
1015 | 1016 |
1016 // Copy arguments to the stack in a loop. | 1017 // Copy arguments to the stack in a loop. |
1017 // r1: function | 1018 // r1: function |
1018 // r3: argc | 1019 // r3: argc |
1019 // r4: argv, i.e. points to first arg | 1020 // r4: argv, i.e. points to first arg |
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1035 __ mov(r5, Operand(r4)); | 1036 __ mov(r5, Operand(r4)); |
1036 __ mov(r6, Operand(r4)); | 1037 __ mov(r6, Operand(r4)); |
1037 __ mov(r7, Operand(r4)); | 1038 __ mov(r7, Operand(r4)); |
1038 if (kR9Available == 1) { | 1039 if (kR9Available == 1) { |
1039 __ mov(r9, Operand(r4)); | 1040 __ mov(r9, Operand(r4)); |
1040 } | 1041 } |
1041 | 1042 |
1042 // Invoke the code and pass argc as r0. | 1043 // Invoke the code and pass argc as r0. |
1043 __ mov(r0, Operand(r3)); | 1044 __ mov(r0, Operand(r3)); |
1044 if (is_construct) { | 1045 if (is_construct) { |
1045 __ Call(Handle<Code>(Isolate::Current()->builtins()->builtin( | 1046 __ Call(Handle<Code>(masm->isolate()->builtins()->builtin( |
1046 Builtins::JSConstructCall)), RelocInfo::CODE_TARGET); | 1047 Builtins::JSConstructCall)), RelocInfo::CODE_TARGET); |
1047 } else { | 1048 } else { |
1048 ParameterCount actual(r0); | 1049 ParameterCount actual(r0); |
1049 __ InvokeFunction(r1, actual, CALL_FUNCTION); | 1050 __ InvokeFunction(r1, actual, CALL_FUNCTION); |
1050 } | 1051 } |
1051 | 1052 |
1052 // Exit the JS frame and remove the parameters (except function), and return. | 1053 // Exit the JS frame and remove the parameters (except function), and return. |
1053 // Respect ABI stack constraint. | 1054 // Respect ABI stack constraint. |
1054 __ LeaveInternalFrame(); | 1055 __ LeaveInternalFrame(); |
1055 __ Jump(lr); | 1056 __ Jump(lr); |
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1165 __ CallRuntime(Runtime::kNotifyOSR, 0); | 1166 __ CallRuntime(Runtime::kNotifyOSR, 0); |
1166 __ LeaveInternalFrame(); | 1167 __ LeaveInternalFrame(); |
1167 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); | 1168 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); |
1168 __ Ret(); | 1169 __ Ret(); |
1169 } | 1170 } |
1170 | 1171 |
1171 | 1172 |
1172 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { | 1173 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
1173 // Probe the CPU to set the supported features, because this builtin | 1174 // Probe the CPU to set the supported features, because this builtin |
1174 // may be called before the initialization performs CPU setup. | 1175 // may be called before the initialization performs CPU setup. |
1175 Isolate::Current()->cpu_features()->Probe(false); | 1176 masm->isolate()->cpu_features()->Probe(false); |
1176 | 1177 |
1177 // Lookup the function in the JavaScript frame and push it as an | 1178 // Lookup the function in the JavaScript frame and push it as an |
1178 // argument to the on-stack replacement function. | 1179 // argument to the on-stack replacement function. |
1179 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1180 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
1180 __ EnterInternalFrame(); | 1181 __ EnterInternalFrame(); |
1181 __ push(r0); | 1182 __ push(r0); |
1182 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); | 1183 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); |
1183 __ LeaveInternalFrame(); | 1184 __ LeaveInternalFrame(); |
1184 | 1185 |
1185 // If the result was -1 it means that we couldn't optimize the | 1186 // If the result was -1 it means that we couldn't optimize the |
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1328 | 1329 |
1329 // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin. | 1330 // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin. |
1330 // r0: actual number of arguments | 1331 // r0: actual number of arguments |
1331 // r1: function | 1332 // r1: function |
1332 { Label function; | 1333 { Label function; |
1333 __ tst(r1, r1); | 1334 __ tst(r1, r1); |
1334 __ b(ne, &function); | 1335 __ b(ne, &function); |
1335 // Expected number of arguments is 0 for CALL_NON_FUNCTION. | 1336 // Expected number of arguments is 0 for CALL_NON_FUNCTION. |
1336 __ mov(r2, Operand(0, RelocInfo::NONE)); | 1337 __ mov(r2, Operand(0, RelocInfo::NONE)); |
1337 __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION); | 1338 __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION); |
1338 __ Jump(Handle<Code>(Isolate::Current()->builtins()->builtin( | 1339 __ Jump(Handle<Code>(masm->isolate()->builtins()->builtin( |
1339 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET); | 1340 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET); |
1340 __ bind(&function); | 1341 __ bind(&function); |
1341 } | 1342 } |
1342 | 1343 |
1343 // 5b. Get the code to call from the function and check that the number of | 1344 // 5b. Get the code to call from the function and check that the number of |
1344 // expected arguments matches what we're providing. If so, jump | 1345 // expected arguments matches what we're providing. If so, jump |
1345 // (tail-call) to the code in register edx without checking arguments. | 1346 // (tail-call) to the code in register edx without checking arguments. |
1346 // r0: actual number of arguments | 1347 // r0: actual number of arguments |
1347 // r1: function | 1348 // r1: function |
1348 __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 1349 __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
1349 __ ldr(r2, | 1350 __ ldr(r2, |
1350 FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset)); | 1351 FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset)); |
1351 __ mov(r2, Operand(r2, ASR, kSmiTagSize)); | 1352 __ mov(r2, Operand(r2, ASR, kSmiTagSize)); |
1352 __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); | 1353 __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
1353 __ cmp(r2, r0); // Check formal and actual parameter counts. | 1354 __ cmp(r2, r0); // Check formal and actual parameter counts. |
1354 __ Jump(Handle<Code>(Isolate::Current()->builtins()->builtin( | 1355 __ Jump(Handle<Code>(masm->isolate()->builtins()->builtin( |
1355 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET, ne); | 1356 ArgumentsAdaptorTrampoline)), RelocInfo::CODE_TARGET, ne); |
1356 | 1357 |
1357 ParameterCount expected(0); | 1358 ParameterCount expected(0); |
1358 __ InvokeCode(r3, expected, expected, JUMP_FUNCTION); | 1359 __ InvokeCode(r3, expected, expected, JUMP_FUNCTION); |
1359 } | 1360 } |
1360 | 1361 |
1361 | 1362 |
1362 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { | 1363 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { |
1363 const int kIndexOffset = -5 * kPointerSize; | 1364 const int kIndexOffset = -5 * kPointerSize; |
1364 const int kLimitOffset = -4 * kPointerSize; | 1365 const int kLimitOffset = -4 * kPointerSize; |
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1619 __ bind(&dont_adapt_arguments); | 1620 __ bind(&dont_adapt_arguments); |
1620 __ Jump(r3); | 1621 __ Jump(r3); |
1621 } | 1622 } |
1622 | 1623 |
1623 | 1624 |
1624 #undef __ | 1625 #undef __ |
1625 | 1626 |
1626 } } // namespace v8::internal | 1627 } } // namespace v8::internal |
1627 | 1628 |
1628 #endif // V8_TARGET_ARCH_ARM | 1629 #endif // V8_TARGET_ARCH_ARM |
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