Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(161)

Side by Side Diff: src/frames-arm.cc

Issue 92068: Move backend specific files to separate directories. (Closed)
Patch Set: Added CPPPATH flag and made all includes use same base path. Created 11 years, 8 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « src/frames-arm.h ('k') | src/frames-ia32.h » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 // Copyright 2006-2008 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
4 // met:
5 //
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.
15 //
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.
27
28 #include "v8.h"
29
30 #include "frames-inl.h"
31 #include "assembler-arm-inl.h"
32
33
34 namespace v8 { namespace internal {
35
36
37 StackFrame::Type StackFrame::ComputeType(State* state) {
38 ASSERT(state->fp != NULL);
39 if (StandardFrame::IsArgumentsAdaptorFrame(state->fp)) {
40 return ARGUMENTS_ADAPTOR;
41 }
42 // The marker and function offsets overlap. If the marker isn't a
43 // smi then the frame is a JavaScript frame -- and the marker is
44 // really the function.
45 const int offset = StandardFrameConstants::kMarkerOffset;
46 Object* marker = Memory::Object_at(state->fp + offset);
47 if (!marker->IsSmi()) return JAVA_SCRIPT;
48 return static_cast<StackFrame::Type>(Smi::cast(marker)->value());
49 }
50
51
52 StackFrame::Type ExitFrame::GetStateForFramePointer(Address fp, State* state) {
53 if (fp == 0) return NONE;
54 // Compute frame type and stack pointer.
55 Address sp = fp + ExitFrameConstants::kSPDisplacement;
56 Type type;
57 if (Memory::Address_at(fp + ExitFrameConstants::kDebugMarkOffset) != 0) {
58 type = EXIT_DEBUG;
59 sp -= kNumJSCallerSaved * kPointerSize;
60 } else {
61 type = EXIT;
62 }
63 // Fill in the state.
64 state->sp = sp;
65 state->fp = fp;
66 state->pc_address = reinterpret_cast<Address*>(sp - 1 * kPointerSize);
67 return type;
68 }
69
70
71 void ExitFrame::Iterate(ObjectVisitor* v) const {
72 // Do nothing
73 }
74
75
76 int JavaScriptFrame::GetProvidedParametersCount() const {
77 return ComputeParametersCount();
78 }
79
80
81 Address JavaScriptFrame::GetCallerStackPointer() const {
82 int arguments;
83 if (Heap::gc_state() != Heap::NOT_IN_GC || disable_heap_access_) {
84 // The arguments for cooked frames are traversed as if they were
85 // expression stack elements of the calling frame. The reason for
86 // this rather strange decision is that we cannot access the
87 // function during mark-compact GCs when the stack is cooked.
88 // In fact accessing heap objects (like function->shared() below)
89 // at all during GC is problematic.
90 arguments = 0;
91 } else {
92 // Compute the number of arguments by getting the number of formal
93 // parameters of the function. We must remember to take the
94 // receiver into account (+1).
95 JSFunction* function = JSFunction::cast(this->function());
96 arguments = function->shared()->formal_parameter_count() + 1;
97 }
98 const int offset = StandardFrameConstants::kCallerSPOffset;
99 return fp() + offset + (arguments * kPointerSize);
100 }
101
102
103 Address ArgumentsAdaptorFrame::GetCallerStackPointer() const {
104 const int arguments = Smi::cast(GetExpression(0))->value();
105 const int offset = StandardFrameConstants::kCallerSPOffset;
106 return fp() + offset + (arguments + 1) * kPointerSize;
107 }
108
109
110 Address InternalFrame::GetCallerStackPointer() const {
111 // Internal frames have no arguments. The stack pointer of the
112 // caller is at a fixed offset from the frame pointer.
113 return fp() + StandardFrameConstants::kCallerSPOffset;
114 }
115
116
117 } } // namespace v8::internal
OLDNEW
« no previous file with comments | « src/frames-arm.h ('k') | src/frames-ia32.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698