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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 47 __ mov(Operand::StaticVariable(ExternalReference::builtin_passed_function()), | 47 __ mov(Operand::StaticVariable(ExternalReference::builtin_passed_function()), |
| 48 edi); | 48 edi); |
| 49 __ JumpToBuiltin(ExternalReference(id)); | 49 __ JumpToBuiltin(ExternalReference(id)); |
| 50 } | 50 } |
| 51 | 51 |
| 52 | 52 |
| 53 DEFINE_bool(inline_new, true, "use fast inline allocation"); | 53 DEFINE_bool(inline_new, true, "use fast inline allocation"); |
| 54 | 54 |
| 55 | 55 |
| 56 void Builtins::Generate_JSConstructCall(MacroAssembler* masm) { | 56 void Builtins::Generate_JSConstructCall(MacroAssembler* masm) { |
| 57 // ----------- S t a t e ------------- |
| 58 // -- eax: number of arguments |
| 59 // -- edi: constructor function |
| 60 // ----------------------------------- |
| 61 |
| 57 // Enter an internal frame. | 62 // Enter an internal frame. |
| 58 __ EnterFrame(StackFrame::INTERNAL); | 63 __ EnterInternalFrame(); |
| 59 | 64 |
| 60 // Store a smi-tagged arguments count on the stack. | 65 // Store a smi-tagged arguments count on the stack. |
| 61 __ shl(eax, kSmiTagSize); | 66 __ shl(eax, kSmiTagSize); |
| 62 __ push(eax); | 67 __ push(eax); |
| 63 | 68 |
| 64 // Push the function to invoke on the stack. | 69 // Push the function to invoke on the stack. |
| 65 __ push(edi); | 70 __ push(edi); |
| 66 | 71 |
| 67 // Try to allocate the object without transitioning into C code. If any of the | 72 // Try to allocate the object without transitioning into C code. If any of the |
| 68 // preconditions is not met, the code bails out to the runtime call. | 73 // preconditions is not met, the code bails out to the runtime call. |
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| 289 __ j(greater_equal, &exit, not_taken); | 294 __ j(greater_equal, &exit, not_taken); |
| 290 | 295 |
| 291 // Throw away the result of the constructor invocation and use the | 296 // Throw away the result of the constructor invocation and use the |
| 292 // on-stack receiver as the result. | 297 // on-stack receiver as the result. |
| 293 __ bind(&use_receiver); | 298 __ bind(&use_receiver); |
| 294 __ mov(eax, Operand(esp, 0)); | 299 __ mov(eax, Operand(esp, 0)); |
| 295 | 300 |
| 296 // Restore the arguments count and exit the internal frame. | 301 // Restore the arguments count and exit the internal frame. |
| 297 __ bind(&exit); | 302 __ bind(&exit); |
| 298 __ mov(ebx, Operand(esp, kPointerSize)); // get arguments count | 303 __ mov(ebx, Operand(esp, kPointerSize)); // get arguments count |
| 299 __ ExitFrame(StackFrame::INTERNAL); | 304 __ ExitInternalFrame(); |
| 300 | 305 |
| 301 // Remove caller arguments from the stack and return. | 306 // Remove caller arguments from the stack and return. |
| 302 ASSERT(kSmiTagSize == 1 && kSmiTag == 0); | 307 ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
| 303 __ pop(ecx); | 308 __ pop(ecx); |
| 304 __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver | 309 __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver |
| 305 __ push(ecx); | 310 __ push(ecx); |
| 306 __ ret(0); | 311 __ ret(0); |
| 307 | 312 |
| 308 // Compute the offset from the beginning of the JSConstructCall | 313 // Compute the offset from the beginning of the JSConstructCall |
| 309 // builtin code object to the return address after the call. | 314 // builtin code object to the return address after the call. |
| 310 ASSERT(return_site.is_bound()); | 315 ASSERT(return_site.is_bound()); |
| 311 construct_call_pc_offset_ = return_site.pos() + Code::kHeaderSize; | 316 construct_call_pc_offset_ = return_site.pos() + Code::kHeaderSize; |
| 312 } | 317 } |
| 313 | 318 |
| 314 | 319 |
| 315 static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, | 320 static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 316 bool is_construct) { | 321 bool is_construct) { |
| 317 // Clear the context before we push it when entering the JS frame. | 322 // Clear the context before we push it when entering the JS frame. |
| 318 __ xor_(esi, Operand(esi)); // clear esi | 323 __ xor_(esi, Operand(esi)); // clear esi |
| 319 | 324 |
| 320 // Enter an internal frame. | 325 // Enter an internal frame. |
| 321 __ EnterFrame(StackFrame::INTERNAL); | 326 __ EnterInternalFrame(); |
| 322 | 327 |
| 323 // Load the previous frame pointer (ebx) to access C arguments | 328 // Load the previous frame pointer (ebx) to access C arguments |
| 324 __ mov(ebx, Operand(ebp, 0)); | 329 __ mov(ebx, Operand(ebp, 0)); |
| 325 | 330 |
| 326 // Get the function from the frame and setup the context. | 331 // Get the function from the frame and setup the context. |
| 327 __ mov(ecx, Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); | 332 __ mov(ecx, Operand(ebx, EntryFrameConstants::kFunctionArgOffset)); |
| 328 __ mov(esi, FieldOperand(ecx, JSFunction::kContextOffset)); | 333 __ mov(esi, FieldOperand(ecx, JSFunction::kContextOffset)); |
| 329 | 334 |
| 330 // Push the function and the receiver onto the stack. | 335 // Push the function and the receiver onto the stack. |
| 331 __ push(ecx); | 336 __ push(ecx); |
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| 355 __ call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)), | 360 __ call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)), |
| 356 code_target); | 361 code_target); |
| 357 } else { | 362 } else { |
| 358 ParameterCount actual(eax); | 363 ParameterCount actual(eax); |
| 359 __ InvokeFunction(edi, actual, CALL_FUNCTION); | 364 __ InvokeFunction(edi, actual, CALL_FUNCTION); |
| 360 } | 365 } |
| 361 | 366 |
| 362 // Exit the JS frame. Notice that this also removes the empty | 367 // Exit the JS frame. Notice that this also removes the empty |
| 363 // context and the function left on the stack by the code | 368 // context and the function left on the stack by the code |
| 364 // invocation. | 369 // invocation. |
| 365 __ ExitFrame(StackFrame::INTERNAL); | 370 __ ExitInternalFrame(); |
| 366 __ ret(1 * kPointerSize); // remove receiver | 371 __ ret(1 * kPointerSize); // remove receiver |
| 367 } | 372 } |
| 368 | 373 |
| 369 | 374 |
| 370 void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { | 375 void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) { |
| 371 Generate_JSEntryTrampolineHelper(masm, false); | 376 Generate_JSEntryTrampolineHelper(masm, false); |
| 372 } | 377 } |
| 373 | 378 |
| 374 | 379 |
| 375 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { | 380 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
| 376 Generate_JSEntryTrampolineHelper(masm, true); | 381 Generate_JSEntryTrampolineHelper(masm, true); |
| 377 } | 382 } |
| 378 | 383 |
| 379 | 384 |
| 380 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { | 385 void Builtins::Generate_FunctionApply(MacroAssembler* masm) { |
| 381 __ EnterFrame(StackFrame::INTERNAL); | 386 __ EnterInternalFrame(); |
| 382 | 387 |
| 383 __ push(Operand(ebp, 4 * kPointerSize)); // push this | 388 __ push(Operand(ebp, 4 * kPointerSize)); // push this |
| 384 __ push(Operand(ebp, 2 * kPointerSize)); // push arguments | 389 __ push(Operand(ebp, 2 * kPointerSize)); // push arguments |
| 385 __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_FUNCTION); | 390 __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_FUNCTION); |
| 386 | 391 |
| 387 // Eagerly check for stack-overflow before pushing all the arguments | 392 // Eagerly check for stack-overflow before pushing all the arguments |
| 388 // to the stack. | 393 // to the stack. |
| 389 Label okay; | 394 Label okay; |
| 390 __ lea(ecx, Operand(esp, -3 * kPointerSize)); // receiver, limit, index | 395 __ lea(ecx, Operand(esp, -3 * kPointerSize)); // receiver, limit, index |
| 391 __ mov(edx, Operand(eax)); | 396 __ mov(edx, Operand(eax)); |
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| 475 __ bind(&entry); | 480 __ bind(&entry); |
| 476 __ cmp(eax, Operand(ebp, kLimitOffset)); | 481 __ cmp(eax, Operand(ebp, kLimitOffset)); |
| 477 __ j(not_equal, &loop); | 482 __ j(not_equal, &loop); |
| 478 | 483 |
| 479 // Invoke the function. | 484 // Invoke the function. |
| 480 ParameterCount actual(eax); | 485 ParameterCount actual(eax); |
| 481 __ shr(eax, kSmiTagSize); | 486 __ shr(eax, kSmiTagSize); |
| 482 __ mov(edi, Operand(ebp, 4 * kPointerSize)); | 487 __ mov(edi, Operand(ebp, 4 * kPointerSize)); |
| 483 __ InvokeFunction(edi, actual, CALL_FUNCTION); | 488 __ InvokeFunction(edi, actual, CALL_FUNCTION); |
| 484 | 489 |
| 485 __ ExitFrame(StackFrame::INTERNAL); | 490 __ ExitInternalFrame(); |
| 486 __ ret(3 * kPointerSize); // remove this, receiver, and arguments | 491 __ ret(3 * kPointerSize); // remove this, receiver, and arguments |
| 487 } | 492 } |
| 488 | 493 |
| 489 | 494 |
| 490 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { | 495 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { |
| 491 __ push(ebp); | 496 __ push(ebp); |
| 492 __ mov(ebp, Operand(esp)); | 497 __ mov(ebp, Operand(esp)); |
| 493 | 498 |
| 494 // Store the arguments adaptor context sentinel. | 499 // Store the arguments adaptor context sentinel. |
| 495 __ push(Immediate(ArgumentsAdaptorFrame::SENTINEL)); | 500 __ push(Immediate(ArgumentsAdaptorFrame::SENTINEL)); |
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| 579 __ bind(&fill); | 584 __ bind(&fill); |
| 580 __ inc(ecx); | 585 __ inc(ecx); |
| 581 __ push(Immediate(Factory::undefined_value())); | 586 __ push(Immediate(Factory::undefined_value())); |
| 582 __ cmp(ecx, Operand(ebx)); | 587 __ cmp(ecx, Operand(ebx)); |
| 583 __ j(less, &fill); | 588 __ j(less, &fill); |
| 584 | 589 |
| 585 // Restore function pointer. | 590 // Restore function pointer. |
| 586 __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); | 591 __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 587 } | 592 } |
| 588 | 593 |
| 589 // Mark the adaptor frame as special by overwriting the context slot | 594 // Call the entry point. |
| 590 // in the stack with a sentinel. | |
| 591 Label return_site; | 595 Label return_site; |
| 592 __ bind(&invoke); | 596 __ bind(&invoke); |
| 593 __ call(Operand(edx)); | 597 __ call(Operand(edx)); |
| 594 __ bind(&return_site); | 598 __ bind(&return_site); |
| 595 | 599 |
| 596 ExitArgumentsAdaptorFrame(masm); | 600 ExitArgumentsAdaptorFrame(masm); |
| 597 __ ret(0); | 601 __ ret(0); |
| 598 | 602 |
| 599 // Compute the offset from the beginning of the ArgumentsAdaptorTrampoline | 603 // Compute the offset from the beginning of the ArgumentsAdaptorTrampoline |
| 600 // builtin code object to the return address after the call. | 604 // builtin code object to the return address after the call. |
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| 654 __ j(equal, &use_global_receiver); | 658 __ j(equal, &use_global_receiver); |
| 655 | 659 |
| 656 __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset)); | 660 __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset)); |
| 657 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); | 661 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 658 __ cmp(ecx, FIRST_JS_OBJECT_TYPE); | 662 __ cmp(ecx, FIRST_JS_OBJECT_TYPE); |
| 659 __ j(less, &call_to_object); | 663 __ j(less, &call_to_object); |
| 660 __ cmp(ecx, LAST_JS_OBJECT_TYPE); | 664 __ cmp(ecx, LAST_JS_OBJECT_TYPE); |
| 661 __ j(less_equal, &done); | 665 __ j(less_equal, &done); |
| 662 | 666 |
| 663 __ bind(&call_to_object); | 667 __ bind(&call_to_object); |
| 664 __ EnterFrame(StackFrame::INTERNAL); // preserves eax, ebx, edi | 668 __ EnterInternalFrame(); // preserves eax, ebx, edi |
| 665 | 669 |
| 666 // Store the arguments count on the stack (smi tagged). | 670 // Store the arguments count on the stack (smi tagged). |
| 667 ASSERT(kSmiTag == 0); | 671 ASSERT(kSmiTag == 0); |
| 668 __ shl(eax, kSmiTagSize); | 672 __ shl(eax, kSmiTagSize); |
| 669 __ push(eax); | 673 __ push(eax); |
| 670 | 674 |
| 671 __ push(edi); // save edi across the call | 675 __ push(edi); // save edi across the call |
| 672 __ push(ebx); | 676 __ push(ebx); |
| 673 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); | 677 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
| 674 __ mov(Operand(ebx), eax); | 678 __ mov(Operand(ebx), eax); |
| 675 __ pop(edi); // restore edi after the call | 679 __ pop(edi); // restore edi after the call |
| 676 | 680 |
| 677 // Get the arguments count and untag it. | 681 // Get the arguments count and untag it. |
| 678 __ pop(eax); | 682 __ pop(eax); |
| 679 __ shr(eax, kSmiTagSize); | 683 __ shr(eax, kSmiTagSize); |
| 680 | 684 |
| 681 __ ExitFrame(StackFrame::INTERNAL); | 685 __ ExitInternalFrame(); |
| 682 __ jmp(&patch_receiver); | 686 __ jmp(&patch_receiver); |
| 683 | 687 |
| 684 // Use the global object from the called function as the receiver. | 688 // Use the global object from the called function as the receiver. |
| 685 __ bind(&use_global_receiver); | 689 __ bind(&use_global_receiver); |
| 686 const int kGlobalIndex = | 690 const int kGlobalIndex = |
| 687 Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; | 691 Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; |
| 688 __ mov(ebx, FieldOperand(esi, kGlobalIndex)); | 692 __ mov(ebx, FieldOperand(esi, kGlobalIndex)); |
| 689 | 693 |
| 690 __ bind(&patch_receiver); | 694 __ bind(&patch_receiver); |
| 691 __ mov(Operand(esp, eax, times_4, 0), ebx); | 695 __ mov(Operand(esp, eax, times_4, 0), ebx); |
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| 740 bool convert_call_to_jmp) { | 744 bool convert_call_to_jmp) { |
| 741 // Save the content of all general purpose registers in memory. This copy in | 745 // Save the content of all general purpose registers in memory. This copy in |
| 742 // memory is later pushed onto the JS expression stack for the fake JS frame | 746 // memory is later pushed onto the JS expression stack for the fake JS frame |
| 743 // generated and also to the C frame generated on top of that. In the JS | 747 // generated and also to the C frame generated on top of that. In the JS |
| 744 // frame ONLY the registers containing pointers will be pushed on the | 748 // frame ONLY the registers containing pointers will be pushed on the |
| 745 // expression stack. This causes the GC to update these pointers so that | 749 // expression stack. This causes the GC to update these pointers so that |
| 746 // they will have the correct value when returning from the debugger. | 750 // they will have the correct value when returning from the debugger. |
| 747 __ SaveRegistersToMemory(kJSCallerSaved); | 751 __ SaveRegistersToMemory(kJSCallerSaved); |
| 748 | 752 |
| 749 // Enter an internal frame. | 753 // Enter an internal frame. |
| 750 __ EnterFrame(StackFrame::INTERNAL); | 754 __ EnterInternalFrame(); |
| 751 | 755 |
| 752 // Store the registers containing object pointers on the expression stack to | 756 // Store the registers containing object pointers on the expression stack to |
| 753 // make sure that these are correctly updated during GC. | 757 // make sure that these are correctly updated during GC. |
| 754 __ PushRegistersFromMemory(pointer_regs); | 758 __ PushRegistersFromMemory(pointer_regs); |
| 755 | 759 |
| 756 #ifdef DEBUG | 760 #ifdef DEBUG |
| 757 __ RecordComment("// Calling from debug break to runtime - come in - over"); | 761 __ RecordComment("// Calling from debug break to runtime - come in - over"); |
| 758 #endif | 762 #endif |
| 759 __ Set(eax, Immediate(0)); // no arguments | 763 __ Set(eax, Immediate(0)); // no arguments |
| 760 __ mov(Operand(ebx), Immediate(ExternalReference::debug_break())); | 764 __ mov(Operand(ebx), Immediate(ExternalReference::debug_break())); |
| 761 | 765 |
| 762 CEntryDebugBreakStub ceb; | 766 CEntryDebugBreakStub ceb; |
| 763 __ CallStub(&ceb); | 767 __ CallStub(&ceb); |
| 764 | 768 |
| 765 // Restore the register values containing object pointers from the expression | 769 // Restore the register values containing object pointers from the expression |
| 766 // stack in the reverse order as they where pushed. | 770 // stack in the reverse order as they where pushed. |
| 767 __ PopRegistersToMemory(pointer_regs); | 771 __ PopRegistersToMemory(pointer_regs); |
| 768 | 772 |
| 769 // Get rid of the internal frame. | 773 // Get rid of the internal frame. |
| 770 __ ExitFrame(StackFrame::INTERNAL); | 774 __ ExitInternalFrame(); |
| 771 | 775 |
| 772 // If this call did not replace a call but patched other code then there will | 776 // If this call did not replace a call but patched other code then there will |
| 773 // be an unwanted return address left on the stack. Here we get rid of that. | 777 // be an unwanted return address left on the stack. Here we get rid of that. |
| 774 if (convert_call_to_jmp) { | 778 if (convert_call_to_jmp) { |
| 775 __ pop(eax); | 779 __ pop(eax); |
| 776 } | 780 } |
| 777 | 781 |
| 778 // Finally restore all registers. | 782 // Finally restore all registers. |
| 779 __ RestoreRegistersFromMemory(kJSCallerSaved); | 783 __ RestoreRegistersFromMemory(kJSCallerSaved); |
| 780 | 784 |
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| 872 // Register state for stub CallFunction (from CallFunctionStub in ic-ia32.cc). | 876 // Register state for stub CallFunction (from CallFunctionStub in ic-ia32.cc). |
| 873 // ----------- S t a t e ------------- | 877 // ----------- S t a t e ------------- |
| 874 // No registers used on entry. | 878 // No registers used on entry. |
| 875 // ----------------------------------- | 879 // ----------------------------------- |
| 876 Generate_DebugBreakCallHelper(masm, 0, false); | 880 Generate_DebugBreakCallHelper(masm, 0, false); |
| 877 } | 881 } |
| 878 | 882 |
| 879 #undef __ | 883 #undef __ |
| 880 | 884 |
| 881 } } // namespace v8::internal | 885 } } // namespace v8::internal |
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