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Issue 2106113002: Revert of [builtins] New frame type for exits to C++ builtins (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 5 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 #if V8_TARGET_ARCH_ARM 5 #if V8_TARGET_ARCH_ARM
6 6
7 #include "src/code-stubs.h" 7 #include "src/code-stubs.h"
8 #include "src/api-arguments.h" 8 #include "src/api-arguments.h"
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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847 // Move argv into the correct register. 847 // Move argv into the correct register.
848 __ mov(r1, Operand(r2)); 848 __ mov(r1, Operand(r2));
849 } else { 849 } else {
850 // Compute the argv pointer in a callee-saved register. 850 // Compute the argv pointer in a callee-saved register.
851 __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2)); 851 __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2));
852 __ sub(r1, r1, Operand(kPointerSize)); 852 __ sub(r1, r1, Operand(kPointerSize));
853 } 853 }
854 854
855 // Enter the exit frame that transitions from JavaScript to C++. 855 // Enter the exit frame that transitions from JavaScript to C++.
856 FrameScope scope(masm, StackFrame::MANUAL); 856 FrameScope scope(masm, StackFrame::MANUAL);
857 __ EnterExitFrame(save_doubles(), 0, is_builtin_exit() 857 __ EnterExitFrame(save_doubles());
858 ? StackFrame::BUILTIN_EXIT
859 : StackFrame::EXIT);
860 858
861 // Store a copy of argc in callee-saved registers for later. 859 // Store a copy of argc in callee-saved registers for later.
862 __ mov(r4, Operand(r0)); 860 __ mov(r4, Operand(r0));
863 861
864 // r0, r4: number of arguments including receiver (C callee-saved) 862 // r0, r4: number of arguments including receiver (C callee-saved)
865 // r1: pointer to the first argument (C callee-saved) 863 // r1: pointer to the first argument (C callee-saved)
866 // r5: pointer to builtin function (C callee-saved) 864 // r5: pointer to builtin function (C callee-saved)
867 865
868 int frame_alignment = MacroAssembler::ActivationFrameAlignment(); 866 int frame_alignment = MacroAssembler::ActivationFrameAlignment();
869 int frame_alignment_mask = frame_alignment - 1; 867 int frame_alignment_mask = frame_alignment - 1;
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5245 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref, 5243 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
5246 kStackUnwindSpace, NULL, return_value_operand, NULL); 5244 kStackUnwindSpace, NULL, return_value_operand, NULL);
5247 } 5245 }
5248 5246
5249 #undef __ 5247 #undef __
5250 5248
5251 } // namespace internal 5249 } // namespace internal
5252 } // namespace v8 5250 } // namespace v8
5253 5251
5254 #endif // V8_TARGET_ARCH_ARM 5252 #endif // V8_TARGET_ARCH_ARM
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