OLD | NEW |
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 |
(...skipping 2465 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2476 __ xor_(rsi, rsi); // tentatively set context pointer to NULL | 2476 __ xor_(rsi, rsi); // tentatively set context pointer to NULL |
2477 NearLabel skip; | 2477 NearLabel skip; |
2478 __ cmpq(rbp, Immediate(0)); | 2478 __ cmpq(rbp, Immediate(0)); |
2479 __ j(equal, &skip); | 2479 __ j(equal, &skip); |
2480 __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); | 2480 __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
2481 __ bind(&skip); | 2481 __ bind(&skip); |
2482 __ ret(0); | 2482 __ ret(0); |
2483 } | 2483 } |
2484 | 2484 |
2485 | 2485 |
2486 void ApiGetterEntryStub::Generate(MacroAssembler* masm) { | |
2487 __ PrepareCallApiFunction(kStackSpace); | |
2488 #ifdef _WIN64 | |
2489 // All the parameters should be set up by a caller. | |
2490 #else | |
2491 // Set 1st parameter register with property name. | |
2492 __ movq(rsi, rdx); | |
2493 // Second parameter register rdi should be set with pointer to AccessorInfo | |
2494 // by a caller. | |
2495 #endif | |
2496 __ CallApiFunctionAndReturn(fun()); | |
2497 } | |
2498 | |
2499 | |
2500 void CEntryStub::GenerateCore(MacroAssembler* masm, | 2486 void CEntryStub::GenerateCore(MacroAssembler* masm, |
2501 Label* throw_normal_exception, | 2487 Label* throw_normal_exception, |
2502 Label* throw_termination_exception, | 2488 Label* throw_termination_exception, |
2503 Label* throw_out_of_memory_exception, | 2489 Label* throw_out_of_memory_exception, |
2504 bool do_gc, | 2490 bool do_gc, |
2505 bool always_allocate_scope, | 2491 bool always_allocate_scope, |
2506 int /* alignment_skew */) { | 2492 int /* alignment_skew */) { |
2507 // rax: result parameter for PerformGC, if any. | 2493 // rax: result parameter for PerformGC, if any. |
2508 // rbx: pointer to C function (C callee-saved). | 2494 // rbx: pointer to C function (C callee-saved). |
2509 // rbp: frame pointer (restored after C call). | 2495 // rbp: frame pointer (restored after C call). |
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2542 ExternalReference::heap_always_allocate_scope_depth(); | 2528 ExternalReference::heap_always_allocate_scope_depth(); |
2543 if (always_allocate_scope) { | 2529 if (always_allocate_scope) { |
2544 __ movq(kScratchRegister, scope_depth); | 2530 __ movq(kScratchRegister, scope_depth); |
2545 __ incl(Operand(kScratchRegister, 0)); | 2531 __ incl(Operand(kScratchRegister, 0)); |
2546 } | 2532 } |
2547 | 2533 |
2548 // Call C function. | 2534 // Call C function. |
2549 #ifdef _WIN64 | 2535 #ifdef _WIN64 |
2550 // Windows 64-bit ABI passes arguments in rcx, rdx, r8, r9 | 2536 // Windows 64-bit ABI passes arguments in rcx, rdx, r8, r9 |
2551 // Store Arguments object on stack, below the 4 WIN64 ABI parameter slots. | 2537 // Store Arguments object on stack, below the 4 WIN64 ABI parameter slots. |
2552 __ movq(Operand(rsp, 4 * kPointerSize), r14); // argc. | 2538 __ movq(StackSpaceOperand(0), r14); // argc. |
2553 __ movq(Operand(rsp, 5 * kPointerSize), r12); // argv. | 2539 __ movq(StackSpaceOperand(1), r12); // argv. |
2554 if (result_size_ < 2) { | 2540 if (result_size_ < 2) { |
2555 // Pass a pointer to the Arguments object as the first argument. | 2541 // Pass a pointer to the Arguments object as the first argument. |
2556 // Return result in single register (rax). | 2542 // Return result in single register (rax). |
2557 __ lea(rcx, Operand(rsp, 4 * kPointerSize)); | 2543 __ lea(rcx, StackSpaceOperand(0)); |
2558 } else { | 2544 } else { |
2559 ASSERT_EQ(2, result_size_); | 2545 ASSERT_EQ(2, result_size_); |
2560 // Pass a pointer to the result location as the first argument. | 2546 // Pass a pointer to the result location as the first argument. |
2561 __ lea(rcx, Operand(rsp, 6 * kPointerSize)); | 2547 __ lea(rcx, StackSpaceOperand(2)); |
2562 // Pass a pointer to the Arguments object as the second argument. | 2548 // Pass a pointer to the Arguments object as the second argument. |
2563 __ lea(rdx, Operand(rsp, 4 * kPointerSize)); | 2549 __ lea(rdx, StackSpaceOperand(0)); |
2564 } | 2550 } |
2565 | 2551 |
2566 #else // _WIN64 | 2552 #else // _WIN64 |
2567 // GCC passes arguments in rdi, rsi, rdx, rcx, r8, r9. | 2553 // GCC passes arguments in rdi, rsi, rdx, rcx, r8, r9. |
2568 __ movq(rdi, r14); // argc. | 2554 __ movq(rdi, r14); // argc. |
2569 __ movq(rsi, r12); // argv. | 2555 __ movq(rsi, r12); // argv. |
2570 #endif | 2556 #endif |
2571 __ call(rbx); | 2557 __ call(rbx); |
2572 // Result is in rax - do not destroy this register! | 2558 // Result is in rax - do not destroy this register! |
2573 | 2559 |
(...skipping 15 matching lines...) Expand all Loading... |
2589 __ movq(rax, Operand(rsp, 6 * kPointerSize)); | 2575 __ movq(rax, Operand(rsp, 6 * kPointerSize)); |
2590 __ movq(rdx, Operand(rsp, 7 * kPointerSize)); | 2576 __ movq(rdx, Operand(rsp, 7 * kPointerSize)); |
2591 } | 2577 } |
2592 #endif | 2578 #endif |
2593 __ lea(rcx, Operand(rax, 1)); | 2579 __ lea(rcx, Operand(rax, 1)); |
2594 // Lower 2 bits of rcx are 0 iff rax has failure tag. | 2580 // Lower 2 bits of rcx are 0 iff rax has failure tag. |
2595 __ testl(rcx, Immediate(kFailureTagMask)); | 2581 __ testl(rcx, Immediate(kFailureTagMask)); |
2596 __ j(zero, &failure_returned); | 2582 __ j(zero, &failure_returned); |
2597 | 2583 |
2598 // Exit the JavaScript to C++ exit frame. | 2584 // Exit the JavaScript to C++ exit frame. |
2599 __ LeaveExitFrame(result_size_); | 2585 __ LeaveExitFrame(); |
2600 __ ret(0); | 2586 __ ret(0); |
2601 | 2587 |
2602 // Handling of failure. | 2588 // Handling of failure. |
2603 __ bind(&failure_returned); | 2589 __ bind(&failure_returned); |
2604 | 2590 |
2605 NearLabel retry; | 2591 NearLabel retry; |
2606 // If the returned exception is RETRY_AFTER_GC continue at retry label | 2592 // If the returned exception is RETRY_AFTER_GC continue at retry label |
2607 STATIC_ASSERT(Failure::RETRY_AFTER_GC == 0); | 2593 STATIC_ASSERT(Failure::RETRY_AFTER_GC == 0); |
2608 __ testl(rax, Immediate(((1 << kFailureTypeTagSize) - 1) << kFailureTagSize)); | 2594 __ testl(rax, Immediate(((1 << kFailureTypeTagSize) - 1) << kFailureTagSize)); |
2609 __ j(zero, &retry); | 2595 __ j(zero, &retry); |
(...skipping 83 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2693 // rbp: frame pointer of calling JS frame (restored after C call) | 2679 // rbp: frame pointer of calling JS frame (restored after C call) |
2694 // rsp: stack pointer (restored after C call) | 2680 // rsp: stack pointer (restored after C call) |
2695 // rsi: current context (restored) | 2681 // rsi: current context (restored) |
2696 | 2682 |
2697 // NOTE: Invocations of builtins may return failure objects | 2683 // NOTE: Invocations of builtins may return failure objects |
2698 // instead of a proper result. The builtin entry handles | 2684 // instead of a proper result. The builtin entry handles |
2699 // this by performing a garbage collection and retrying the | 2685 // this by performing a garbage collection and retrying the |
2700 // builtin once. | 2686 // builtin once. |
2701 | 2687 |
2702 // Enter the exit frame that transitions from JavaScript to C++. | 2688 // Enter the exit frame that transitions from JavaScript to C++. |
2703 __ EnterExitFrame(result_size_); | 2689 #ifdef _WIN64 |
| 2690 int arg_stack_space = (result_size_ < 2 ? 2 : 4); |
| 2691 #else |
| 2692 int arg_stack_space = 0; |
| 2693 #endif |
| 2694 __ EnterExitFrame(arg_stack_space); |
2704 | 2695 |
2705 // rax: Holds the context at this point, but should not be used. | 2696 // rax: Holds the context at this point, but should not be used. |
2706 // On entry to code generated by GenerateCore, it must hold | 2697 // On entry to code generated by GenerateCore, it must hold |
2707 // a failure result if the collect_garbage argument to GenerateCore | 2698 // a failure result if the collect_garbage argument to GenerateCore |
2708 // is true. This failure result can be the result of code | 2699 // is true. This failure result can be the result of code |
2709 // generated by a previous call to GenerateCore. The value | 2700 // generated by a previous call to GenerateCore. The value |
2710 // of rax is then passed to Runtime::PerformGC. | 2701 // of rax is then passed to Runtime::PerformGC. |
2711 // rbx: pointer to builtin function (C callee-saved). | 2702 // rbx: pointer to builtin function (C callee-saved). |
2712 // rbp: frame pointer of exit frame (restored after C call). | 2703 // rbp: frame pointer of exit frame (restored after C call). |
2713 // rsp: stack pointer (restored after C call). | 2704 // rsp: stack pointer (restored after C call). |
(...skipping 1278 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3992 // tagged as a small integer. | 3983 // tagged as a small integer. |
3993 __ bind(&runtime); | 3984 __ bind(&runtime); |
3994 __ TailCallRuntime(Runtime::kStringCompare, 2, 1); | 3985 __ TailCallRuntime(Runtime::kStringCompare, 2, 1); |
3995 } | 3986 } |
3996 | 3987 |
3997 #undef __ | 3988 #undef __ |
3998 | 3989 |
3999 } } // namespace v8::internal | 3990 } } // namespace v8::internal |
4000 | 3991 |
4001 #endif // V8_TARGET_ARCH_X64 | 3992 #endif // V8_TARGET_ARCH_X64 |
OLD | NEW |