1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef V8_MACRO_ASSEMBLER_H_
29 #define V8_MACRO_ASSEMBLER_H_
32 // Helper types to make boolean flag easier to read at call-site.
39 // Invalid depth in prototype chain.
40 const int kInvalidProtoDepth = -1;
42 #if V8_TARGET_ARCH_IA32
43 #include "assembler.h"
44 #include "ia32/assembler-ia32.h"
45 #include "ia32/assembler-ia32-inl.h"
46 #include "code.h" // must be after assembler_*.h
47 #include "ia32/macro-assembler-ia32.h"
48 #elif V8_TARGET_ARCH_X64
49 #include "assembler.h"
50 #include "x64/assembler-x64.h"
51 #include "x64/assembler-x64-inl.h"
52 #include "code.h" // must be after assembler_*.h
53 #include "x64/macro-assembler-x64.h"
54 #elif V8_TARGET_ARCH_ARM
55 #include "arm/constants-arm.h"
56 #include "assembler.h"
57 #include "arm/assembler-arm.h"
58 #include "arm/assembler-arm-inl.h"
59 #include "code.h" // must be after assembler_*.h
60 #include "arm/macro-assembler-arm.h"
61 #elif V8_TARGET_ARCH_MIPS
62 #include "mips/constants-mips.h"
63 #include "assembler.h"
64 #include "mips/assembler-mips.h"
65 #include "mips/assembler-mips-inl.h"
66 #include "code.h" // must be after assembler_*.h
67 #include "mips/macro-assembler-mips.h"
69 #error Unsupported target architecture.
77 explicit FrameScope(MacroAssembler* masm, StackFrame::Type type)
78 : masm_(masm), type_(type), old_has_frame_(masm->has_frame()) {
79 masm->set_has_frame(true);
80 if (type != StackFrame::MANUAL && type_ != StackFrame::NONE) {
81 masm->EnterFrame(type);
86 if (type_ != StackFrame::MANUAL && type_ != StackFrame::NONE) {
87 masm_->LeaveFrame(type_);
89 masm_->set_has_frame(old_has_frame_);
92 // Normally we generate the leave-frame code when this object goes
93 // out of scope. Sometimes we may need to generate the code somewhere else
94 // in addition. Calling this will achieve that, but the object stays in
95 // scope, the MacroAssembler is still marked as being in a frame scope, and
96 // the code will be generated again when it goes out of scope.
97 void GenerateLeaveFrame() {
98 masm_->LeaveFrame(type_);
102 MacroAssembler* masm_;
103 StackFrame::Type type_;
108 class AllowExternalCallThatCantCauseGC: public FrameScope {
110 explicit AllowExternalCallThatCantCauseGC(MacroAssembler* masm)
111 : FrameScope(masm, StackFrame::NONE) { }
115 class NoCurrentFrameScope {
117 explicit NoCurrentFrameScope(MacroAssembler* masm)
118 : masm_(masm), saved_(masm->has_frame()) {
119 masm->set_has_frame(false);
122 ~NoCurrentFrameScope() {
123 masm_->set_has_frame(saved_);
127 MacroAssembler* masm_;
132 // Support for "structured" code comments.
137 Comment(MacroAssembler* masm, const char* msg);
141 MacroAssembler* masm_;
149 Comment(MacroAssembler*, const char*) {}
154 } } // namespace v8::internal
156 #endif // V8_MACRO_ASSEMBLER_H_