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Issue 502713003: Encode CEntryStub properties in the minor key. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: encode Created 6 years, 4 months ago
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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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_IA32 7 #if V8_TARGET_ARCH_IA32
8 8
9 #include "src/bootstrapper.h" 9 #include "src/bootstrapper.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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2550 // eax: number of arguments including receiver 2550 // eax: number of arguments including receiver
2551 // ebx: pointer to C function (C callee-saved) 2551 // ebx: pointer to C function (C callee-saved)
2552 // ebp: frame pointer (restored after C call) 2552 // ebp: frame pointer (restored after C call)
2553 // esp: stack pointer (restored after C call) 2553 // esp: stack pointer (restored after C call)
2554 // esi: current context (C callee-saved) 2554 // esi: current context (C callee-saved)
2555 // edi: JS function of the caller (C callee-saved) 2555 // edi: JS function of the caller (C callee-saved)
2556 2556
2557 ProfileEntryHookStub::MaybeCallEntryHook(masm); 2557 ProfileEntryHookStub::MaybeCallEntryHook(masm);
2558 2558
2559 // Enter the exit frame that transitions from JavaScript to C++. 2559 // Enter the exit frame that transitions from JavaScript to C++.
2560 __ EnterExitFrame(save_doubles_ == kSaveFPRegs); 2560 __ EnterExitFrame(save_doubles());
2561 2561
2562 // ebx: pointer to C function (C callee-saved) 2562 // ebx: pointer to C function (C callee-saved)
2563 // ebp: frame pointer (restored after C call) 2563 // ebp: frame pointer (restored after C call)
2564 // esp: stack pointer (restored after C call) 2564 // esp: stack pointer (restored after C call)
2565 // edi: number of arguments including receiver (C callee-saved) 2565 // edi: number of arguments including receiver (C callee-saved)
2566 // esi: pointer to the first argument (C callee-saved) 2566 // esi: pointer to the first argument (C callee-saved)
2567 2567
2568 // Result returned in eax, or eax+edx if result_size_ is 2. 2568 // Result returned in eax, or eax+edx if result size is 2.
2569 2569
2570 // Check stack alignment. 2570 // Check stack alignment.
2571 if (FLAG_debug_code) { 2571 if (FLAG_debug_code) {
2572 __ CheckStackAlignment(); 2572 __ CheckStackAlignment();
2573 } 2573 }
2574 2574
2575 // Call C function. 2575 // Call C function.
2576 __ mov(Operand(esp, 0 * kPointerSize), edi); // argc. 2576 __ mov(Operand(esp, 0 * kPointerSize), edi); // argc.
2577 __ mov(Operand(esp, 1 * kPointerSize), esi); // argv. 2577 __ mov(Operand(esp, 1 * kPointerSize), esi); // argv.
2578 __ mov(Operand(esp, 2 * kPointerSize), 2578 __ mov(Operand(esp, 2 * kPointerSize),
(...skipping 27 matching lines...) Expand all
2606 Label okay; 2606 Label okay;
2607 __ cmp(edx, Operand::StaticVariable(pending_exception_address)); 2607 __ cmp(edx, Operand::StaticVariable(pending_exception_address));
2608 // Cannot use check here as it attempts to generate call into runtime. 2608 // Cannot use check here as it attempts to generate call into runtime.
2609 __ j(equal, &okay, Label::kNear); 2609 __ j(equal, &okay, Label::kNear);
2610 __ int3(); 2610 __ int3();
2611 __ bind(&okay); 2611 __ bind(&okay);
2612 __ pop(edx); 2612 __ pop(edx);
2613 } 2613 }
2614 2614
2615 // Exit the JavaScript to C++ exit frame. 2615 // Exit the JavaScript to C++ exit frame.
2616 __ LeaveExitFrame(save_doubles_ == kSaveFPRegs); 2616 __ LeaveExitFrame(save_doubles());
2617 __ ret(0); 2617 __ ret(0);
2618 2618
2619 // Handling of exception. 2619 // Handling of exception.
2620 __ bind(&exception_returned); 2620 __ bind(&exception_returned);
2621 2621
2622 // Retrieve the pending exception. 2622 // Retrieve the pending exception.
2623 __ mov(eax, Operand::StaticVariable(pending_exception_address)); 2623 __ mov(eax, Operand::StaticVariable(pending_exception_address));
2624 2624
2625 // Clear the pending exception. 2625 // Clear the pending exception.
2626 __ mov(edx, Immediate(isolate()->factory()->the_hole_value())); 2626 __ mov(edx, Immediate(isolate()->factory()->the_hole_value()));
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5005 Operand(ebp, 7 * kPointerSize), 5005 Operand(ebp, 7 * kPointerSize),
5006 NULL); 5006 NULL);
5007 } 5007 }
5008 5008
5009 5009
5010 #undef __ 5010 #undef __
5011 5011
5012 } } // namespace v8::internal 5012 } } // namespace v8::internal
5013 5013
5014 #endif // V8_TARGET_ARCH_IA32 5014 #endif // V8_TARGET_ARCH_IA32
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