yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 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 | #ifndef V8_FRAMES_H_ |
| 29 | #define V8_FRAMES_H_ |
| 30 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 31 | #include "allocation.h" |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 32 | #include "handles.h" |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 33 | #include "safepoint-table.h" |
| 34 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 35 | namespace v8 { |
| 36 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 37 | |
| 38 | typedef uint32_t RegList; |
| 39 | |
| 40 | // Get the number of registers in a given register list. |
| 41 | int NumRegs(RegList list); |
| 42 | |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 43 | void SetUpJSCallerSavedCodeData(); |
| 44 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 45 | // Return the code of the n-th saved register available to JavaScript. |
| 46 | int JSCallerSavedCode(int n); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | |
| 48 | |
| 49 | // Forward declarations. |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 50 | class ExternalCallbackScope; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 51 | class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 52 | class ThreadLocalTop; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 53 | class Isolate; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 54 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 55 | class InnerPointerToCodeCache { |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 56 | public: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 57 | struct InnerPointerToCodeCacheEntry { |
| 58 | Address inner_pointer; |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 59 | Code* code; |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 60 | SafepointEntry safepoint_entry; |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 61 | }; |
| 62 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 63 | explicit InnerPointerToCodeCache(Isolate* isolate) : isolate_(isolate) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 64 | Flush(); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 65 | } |
| 66 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 67 | Code* GcSafeFindCodeForInnerPointer(Address inner_pointer); |
| 68 | Code* GcSafeCastToCode(HeapObject* object, Address inner_pointer); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 69 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 70 | void Flush() { |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 71 | memset(&cache_[0], 0, sizeof(cache_)); |
| 72 | } |
| 73 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 74 | InnerPointerToCodeCacheEntry* GetCacheEntry(Address inner_pointer); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 75 | |
| 76 | private: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 77 | InnerPointerToCodeCacheEntry* cache(int index) { return &cache_[index]; } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 78 | |
| 79 | Isolate* isolate_; |
| 80 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 81 | static const int kInnerPointerToCodeCacheSize = 1024; |
| 82 | InnerPointerToCodeCacheEntry cache_[kInnerPointerToCodeCacheSize]; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 83 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 84 | DISALLOW_COPY_AND_ASSIGN(InnerPointerToCodeCache); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 85 | }; |
| 86 | |
| 87 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 88 | class StackHandlerConstants : public AllStatic { |
| 89 | public: |
| 90 | static const int kNextOffset = 0 * kPointerSize; |
| 91 | static const int kCodeOffset = 1 * kPointerSize; |
| 92 | static const int kStateOffset = 2 * kPointerSize; |
| 93 | static const int kContextOffset = 3 * kPointerSize; |
| 94 | static const int kFPOffset = 4 * kPointerSize; |
| 95 | |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 96 | static const int kSize = kFPOffset + kFPOnStackSize; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 97 | static const int kSlotCount = kSize >> kPointerSizeLog2; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 98 | }; |
| 99 | |
| 100 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 101 | class StackHandler BASE_EMBEDDED { |
| 102 | public: |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 103 | enum Kind { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 104 | JS_ENTRY, |
| 105 | CATCH, |
| 106 | FINALLY, |
| 107 | LAST_KIND = FINALLY |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 108 | }; |
| 109 | |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 110 | static const int kKindWidth = 2; |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 111 | STATIC_ASSERT(LAST_KIND < (1 << kKindWidth)); |
| 112 | static const int kIndexWidth = 32 - kKindWidth; |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 113 | class KindField: public BitField<StackHandler::Kind, 0, kKindWidth> {}; |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 114 | class IndexField: public BitField<unsigned, kKindWidth, kIndexWidth> {}; |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 115 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 116 | // Get the address of this stack handler. |
| 117 | inline Address address() const; |
| 118 | |
| 119 | // Get the next stack handler in the chain. |
| 120 | inline StackHandler* next() const; |
| 121 | |
| 122 | // Tells whether the given address is inside this handler. |
| 123 | inline bool includes(Address address) const; |
| 124 | |
| 125 | // Garbage collection support. |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 126 | inline void Iterate(ObjectVisitor* v, Code* holder) const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 127 | |
| 128 | // Conversion support. |
| 129 | static inline StackHandler* FromAddress(Address address); |
| 130 | |
| 131 | // Testers |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 132 | inline bool is_js_entry() const; |
| 133 | inline bool is_catch() const; |
| 134 | inline bool is_finally() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 135 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 136 | // Generator support to preserve stack handlers. |
| 137 | void Unwind(Isolate* isolate, FixedArray* array, int offset, |
| 138 | int previous_handler_offset) const; |
| 139 | int Rewind(Isolate* isolate, FixedArray* array, int offset, Address fp); |
| 140 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 141 | private: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 142 | // Accessors. |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 143 | inline Kind kind() const; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 144 | inline unsigned index() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 145 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 146 | inline Object** context_address() const; |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 147 | inline Object** code_address() const; |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 148 | inline void SetFp(Address slot, Address fp); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 149 | |
| 150 | DISALLOW_IMPLICIT_CONSTRUCTORS(StackHandler); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 154 | #define STACK_FRAME_TYPE_LIST(V) \ |
| 155 | V(ENTRY, EntryFrame) \ |
| 156 | V(ENTRY_CONSTRUCT, EntryConstructFrame) \ |
| 157 | V(EXIT, ExitFrame) \ |
| 158 | V(JAVA_SCRIPT, JavaScriptFrame) \ |
| 159 | V(OPTIMIZED, OptimizedFrame) \ |
| 160 | V(STUB, StubFrame) \ |
| 161 | V(STUB_FAILURE_TRAMPOLINE, StubFailureTrampolineFrame) \ |
| 162 | V(INTERNAL, InternalFrame) \ |
| 163 | V(CONSTRUCT, ConstructFrame) \ |
| 164 | V(ARGUMENTS_ADAPTOR, ArgumentsAdaptorFrame) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 165 | |
| 166 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 167 | class StandardFrameConstants : public AllStatic { |
| 168 | public: |
| 169 | // Fixed part of the frame consists of return address, caller fp, |
| 170 | // context and function. |
| 171 | // StandardFrame::IterateExpressions assumes that kContextOffset is the last |
| 172 | // object pointer. |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 173 | static const int kFixedFrameSize = kPCOnStackSize + kFPOnStackSize + |
| 174 | 2 * kPointerSize; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 175 | static const int kExpressionsOffset = -3 * kPointerSize; |
| 176 | static const int kMarkerOffset = -2 * kPointerSize; |
| 177 | static const int kContextOffset = -1 * kPointerSize; |
| 178 | static const int kCallerFPOffset = 0 * kPointerSize; |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 179 | static const int kCallerPCOffset = +1 * kFPOnStackSize; |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 180 | static const int kCallerSPOffset = kCallerPCOffset + 1 * kPCOnStackSize; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 181 | }; |
| 182 | |
| 183 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 184 | // Abstract base class for all stack frames. |
| 185 | class StackFrame BASE_EMBEDDED { |
| 186 | public: |
| 187 | #define DECLARE_TYPE(type, ignore) type, |
| 188 | enum Type { |
| 189 | NONE = 0, |
| 190 | STACK_FRAME_TYPE_LIST(DECLARE_TYPE) |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 191 | NUMBER_OF_TYPES, |
| 192 | // Used by FrameScope to indicate that the stack frame is constructed |
| 193 | // manually and the FrameScope does not need to emit code. |
| 194 | MANUAL |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 195 | }; |
| 196 | #undef DECLARE_TYPE |
| 197 | |
| 198 | // Opaque data type for identifying stack frames. Used extensively |
| 199 | // by the debugger. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 200 | // ID_MIN_VALUE and ID_MAX_VALUE are specified to ensure that enumeration type |
| 201 | // has correct value range (see Issue 830 for more details). |
| 202 | enum Id { |
| 203 | ID_MIN_VALUE = kMinInt, |
| 204 | ID_MAX_VALUE = kMaxInt, |
| 205 | NO_ID = 0 |
| 206 | }; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 207 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 208 | // Used to mark the outermost JS entry frame. |
| 209 | enum JsFrameMarker { |
| 210 | INNER_JSENTRY_FRAME = 0, |
| 211 | OUTERMOST_JSENTRY_FRAME = 1 |
| 212 | }; |
| 213 | |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 214 | struct State { |
| 215 | State() : sp(NULL), fp(NULL), pc_address(NULL) { } |
| 216 | Address sp; |
| 217 | Address fp; |
| 218 | Address* pc_address; |
| 219 | }; |
| 220 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 221 | // Copy constructor; it breaks the connection to host iterator |
| 222 | // (as an iterator usually lives on stack). |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 223 | StackFrame(const StackFrame& original) { |
| 224 | this->state_ = original.state_; |
| 225 | this->iterator_ = NULL; |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 226 | this->isolate_ = original.isolate_; |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 227 | } |
| 228 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 229 | // Type testers. |
| 230 | bool is_entry() const { return type() == ENTRY; } |
| 231 | bool is_entry_construct() const { return type() == ENTRY_CONSTRUCT; } |
| 232 | bool is_exit() const { return type() == EXIT; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 233 | bool is_optimized() const { return type() == OPTIMIZED; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 234 | bool is_arguments_adaptor() const { return type() == ARGUMENTS_ADAPTOR; } |
| 235 | bool is_internal() const { return type() == INTERNAL; } |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 236 | bool is_stub_failure_trampoline() const { |
| 237 | return type() == STUB_FAILURE_TRAMPOLINE; |
| 238 | } |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 239 | bool is_construct() const { return type() == CONSTRUCT; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 240 | virtual bool is_standard() const { return false; } |
| 241 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 242 | bool is_java_script() const { |
| 243 | Type type = this->type(); |
| 244 | return (type == JAVA_SCRIPT) || (type == OPTIMIZED); |
| 245 | } |
| 246 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 247 | // Accessors. |
| 248 | Address sp() const { return state_.sp; } |
| 249 | Address fp() const { return state_.fp; } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 250 | Address caller_sp() const { return GetCallerStackPointer(); } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 251 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 252 | // If this frame is optimized and was dynamically aligned return its old |
| 253 | // unaligned frame pointer. When the frame is deoptimized its FP will shift |
| 254 | // up one word and become unaligned. |
| 255 | Address UnpaddedFP() const; |
| 256 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 257 | Address pc() const { return *pc_address(); } |
| 258 | void set_pc(Address pc) { *pc_address() = pc; } |
| 259 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 260 | virtual void SetCallerFp(Address caller_fp) = 0; |
| 261 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 262 | // Manually changes value of fp in this object. |
| 263 | void UpdateFp(Address fp) { state_.fp = fp; } |
| 264 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 265 | Address* pc_address() const { return state_.pc_address; } |
| 266 | |
| 267 | // Get the id of this stack frame. |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 268 | Id id() const { return static_cast<Id>(OffsetFrom(caller_sp())); } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 269 | |
| 270 | // Checks if this frame includes any stack handlers. |
| 271 | bool HasHandler() const; |
| 272 | |
| 273 | // Get the type of this frame. |
| 274 | virtual Type type() const = 0; |
| 275 | |
| 276 | // Get the code associated with this frame. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 277 | // This method could be called during marking phase of GC. |
| 278 | virtual Code* unchecked_code() const = 0; |
| 279 | |
| 280 | // Get the code associated with this frame. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 281 | inline Code* LookupCode() const; |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 282 | |
| 283 | // Get the code object that contains the given pc. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 284 | static inline Code* GetContainingCode(Isolate* isolate, Address pc); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 285 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 286 | // Get the code object containing the given pc and fill in the |
| 287 | // safepoint entry and the number of stack slots. The pc must be at |
| 288 | // a safepoint. |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 289 | static Code* GetSafepointData(Isolate* isolate, |
| 290 | Address pc, |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 291 | SafepointEntry* safepoint_entry, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 292 | unsigned* stack_slots); |
| 293 | |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 294 | virtual void Iterate(ObjectVisitor* v) const = 0; |
| 295 | static void IteratePc(ObjectVisitor* v, Address* pc_address, Code* holder); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 296 | |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 297 | // Sets a callback function for return-address rewriting profilers |
| 298 | // to resolve the location of a return address to the location of the |
| 299 | // profiler's stashed return address. |
| 300 | static void SetReturnAddressLocationResolver( |
| 301 | ReturnAddressLocationResolver resolver); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 302 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 303 | // Resolves pc_address through the resolution address function if one is set. |
| 304 | static inline Address* ResolveReturnAddressLocation(Address* pc_address); |
| 305 | |
| 306 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 307 | // Printing support. |
| 308 | enum PrintMode { OVERVIEW, DETAILS }; |
| 309 | virtual void Print(StringStream* accumulator, |
| 310 | PrintMode mode, |
| 311 | int index) const { } |
| 312 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 313 | Isolate* isolate() const { return isolate_; } |
| 314 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 315 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 316 | inline explicit StackFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 317 | virtual ~StackFrame() { } |
| 318 | |
| 319 | // Compute the stack pointer for the calling frame. |
| 320 | virtual Address GetCallerStackPointer() const = 0; |
| 321 | |
| 322 | // Printing support. |
| 323 | static void PrintIndex(StringStream* accumulator, |
| 324 | PrintMode mode, |
| 325 | int index); |
| 326 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 327 | // Get the top handler from the current stack iterator. |
| 328 | inline StackHandler* top_handler() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 329 | |
| 330 | // Compute the stack frame type for the given state. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 331 | static Type ComputeType(const StackFrameIteratorBase* iterator, State* state); |
| 332 | |
| 333 | #ifdef DEBUG |
| 334 | bool can_access_heap_objects() const; |
| 335 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 336 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 337 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 338 | const StackFrameIteratorBase* iterator_; |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 339 | Isolate* isolate_; |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 340 | State state_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 341 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 342 | static ReturnAddressLocationResolver return_address_location_resolver_; |
| 343 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 344 | // Fill in the state of the calling frame. |
| 345 | virtual void ComputeCallerState(State* state) const = 0; |
| 346 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 347 | // Get the type and the state of the calling frame. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 348 | virtual Type GetCallerState(State* state) const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 349 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 350 | static const intptr_t kIsolateTag = 1; |
| 351 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 352 | friend class StackFrameIterator; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 353 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 354 | friend class StackHandlerIterator; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 355 | friend class SafeStackFrameIterator; |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 356 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 357 | private: |
| 358 | void operator=(const StackFrame& original); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 359 | }; |
| 360 | |
| 361 | |
| 362 | // Entry frames are used to enter JavaScript execution from C. |
| 363 | class EntryFrame: public StackFrame { |
| 364 | public: |
| 365 | virtual Type type() const { return ENTRY; } |
| 366 | |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 367 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 368 | |
| 369 | // Garbage collection support. |
| 370 | virtual void Iterate(ObjectVisitor* v) const; |
| 371 | |
| 372 | static EntryFrame* cast(StackFrame* frame) { |
| 373 | ASSERT(frame->is_entry()); |
| 374 | return static_cast<EntryFrame*>(frame); |
| 375 | } |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 376 | virtual void SetCallerFp(Address caller_fp); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 377 | |
| 378 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 379 | inline explicit EntryFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 380 | |
| 381 | // The caller stack pointer for entry frames is always zero. The |
| 382 | // real information about the caller frame is available through the |
| 383 | // link to the top exit frame. |
| 384 | virtual Address GetCallerStackPointer() const { return 0; } |
| 385 | |
| 386 | private: |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 387 | virtual void ComputeCallerState(State* state) const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 388 | virtual Type GetCallerState(State* state) const; |
| 389 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 390 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 391 | }; |
| 392 | |
| 393 | |
| 394 | class EntryConstructFrame: public EntryFrame { |
| 395 | public: |
| 396 | virtual Type type() const { return ENTRY_CONSTRUCT; } |
| 397 | |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 398 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 399 | |
| 400 | static EntryConstructFrame* cast(StackFrame* frame) { |
| 401 | ASSERT(frame->is_entry_construct()); |
| 402 | return static_cast<EntryConstructFrame*>(frame); |
| 403 | } |
| 404 | |
| 405 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 406 | inline explicit EntryConstructFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 407 | |
| 408 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 409 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 410 | }; |
| 411 | |
| 412 | |
| 413 | // Exit frames are used to exit JavaScript execution and go to C. |
| 414 | class ExitFrame: public StackFrame { |
| 415 | public: |
| 416 | virtual Type type() const { return EXIT; } |
| 417 | |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 418 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 419 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 420 | Object*& code_slot() const; |
| 421 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 422 | // Garbage collection support. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 423 | virtual void Iterate(ObjectVisitor* v) const; |
| 424 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 425 | virtual void SetCallerFp(Address caller_fp); |
| 426 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 427 | static ExitFrame* cast(StackFrame* frame) { |
| 428 | ASSERT(frame->is_exit()); |
| 429 | return static_cast<ExitFrame*>(frame); |
| 430 | } |
| 431 | |
| 432 | // Compute the state and type of an exit frame given a frame |
| 433 | // pointer. Used when constructing the first stack frame seen by an |
| 434 | // iterator and the frames following entry frames. |
| 435 | static Type GetStateForFramePointer(Address fp, State* state); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 436 | static Address ComputeStackPointer(Address fp); |
| 437 | static void FillState(Address fp, Address sp, State* state); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 438 | |
| 439 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 440 | inline explicit ExitFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 441 | |
| 442 | virtual Address GetCallerStackPointer() const; |
| 443 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 444 | private: |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 445 | virtual void ComputeCallerState(State* state) const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 446 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 447 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 448 | }; |
| 449 | |
| 450 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 451 | class StandardFrame: public StackFrame { |
| 452 | public: |
| 453 | // Testers. |
| 454 | virtual bool is_standard() const { return true; } |
| 455 | |
| 456 | // Accessors. |
| 457 | inline Object* context() const; |
| 458 | |
| 459 | // Access the expressions in the stack frame including locals. |
| 460 | inline Object* GetExpression(int index) const; |
| 461 | inline void SetExpression(int index, Object* value); |
| 462 | int ComputeExpressionsCount() const; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 463 | static Object* GetExpression(Address fp, int index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 464 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 465 | virtual void SetCallerFp(Address caller_fp); |
| 466 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 467 | static StandardFrame* cast(StackFrame* frame) { |
| 468 | ASSERT(frame->is_standard()); |
| 469 | return static_cast<StandardFrame*>(frame); |
| 470 | } |
| 471 | |
| 472 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 473 | inline explicit StandardFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 474 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 475 | virtual void ComputeCallerState(State* state) const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 476 | |
| 477 | // Accessors. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 478 | inline Address caller_fp() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 479 | inline Address caller_pc() const; |
| 480 | |
| 481 | // Computes the address of the PC field in the standard frame given |
| 482 | // by the provided frame pointer. |
| 483 | static inline Address ComputePCAddress(Address fp); |
| 484 | |
| 485 | // Iterate over expression stack including stack handlers, locals, |
| 486 | // and parts of the fixed part including context and code fields. |
| 487 | void IterateExpressions(ObjectVisitor* v) const; |
| 488 | |
| 489 | // Returns the address of the n'th expression stack element. |
| 490 | Address GetExpressionAddress(int n) const; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 491 | static Address GetExpressionAddress(Address fp, int n); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 492 | |
| 493 | // Determines if the n'th expression stack element is in a stack |
| 494 | // handler or not. Requires traversing all handlers in this frame. |
| 495 | bool IsExpressionInsideHandler(int n) const; |
| 496 | |
| 497 | // Determines if the standard frame for the given frame pointer is |
| 498 | // an arguments adaptor frame. |
| 499 | static inline bool IsArgumentsAdaptorFrame(Address fp); |
| 500 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 501 | // Determines if the standard frame for the given frame pointer is a |
| 502 | // construct frame. |
| 503 | static inline bool IsConstructFrame(Address fp); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 504 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 505 | // Used by OptimizedFrames and StubFrames. |
| 506 | void IterateCompiledFrame(ObjectVisitor* v) const; |
| 507 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 508 | private: |
| 509 | friend class StackFrame; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 510 | friend class SafeStackFrameIterator; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 511 | }; |
| 512 | |
| 513 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 514 | class FrameSummary BASE_EMBEDDED { |
| 515 | public: |
| 516 | FrameSummary(Object* receiver, |
| 517 | JSFunction* function, |
| 518 | Code* code, |
| 519 | int offset, |
| 520 | bool is_constructor) |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 521 | : receiver_(receiver, function->GetIsolate()), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 522 | function_(function), |
| 523 | code_(code), |
| 524 | offset_(offset), |
| 525 | is_constructor_(is_constructor) { } |
| 526 | Handle<Object> receiver() { return receiver_; } |
| 527 | Handle<JSFunction> function() { return function_; } |
| 528 | Handle<Code> code() { return code_; } |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 529 | Address pc() { return code_->address() + offset_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 530 | int offset() { return offset_; } |
| 531 | bool is_constructor() { return is_constructor_; } |
| 532 | |
| 533 | void Print(); |
| 534 | |
| 535 | private: |
| 536 | Handle<Object> receiver_; |
| 537 | Handle<JSFunction> function_; |
| 538 | Handle<Code> code_; |
| 539 | int offset_; |
| 540 | bool is_constructor_; |
| 541 | }; |
| 542 | |
| 543 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 544 | class JavaScriptFrame: public StandardFrame { |
| 545 | public: |
| 546 | virtual Type type() const { return JAVA_SCRIPT; } |
| 547 | |
| 548 | // Accessors. |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 549 | inline JSFunction* function() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 550 | inline Object* receiver() const; |
| 551 | inline void set_receiver(Object* value); |
| 552 | |
| 553 | // Access the parameters. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 554 | inline Address GetParameterSlot(int index) const; |
| 555 | inline Object* GetParameter(int index) const; |
| 556 | inline int ComputeParametersCount() const { |
| 557 | return GetNumberOfIncomingArguments(); |
| 558 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 559 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 560 | // Access the operand stack. |
| 561 | inline Address GetOperandSlot(int index) const; |
| 562 | inline Object* GetOperand(int index) const; |
| 563 | inline int ComputeOperandsCount() const; |
| 564 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 565 | // Generator support to preserve operand stack and stack handlers. |
| 566 | void SaveOperandStack(FixedArray* store, int* stack_handler_index) const; |
| 567 | void RestoreOperandStack(FixedArray* store, int stack_handler_index); |
| 568 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 569 | // Debugger access. |
| 570 | void SetParameterValue(int index, Object* value) const; |
| 571 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 572 | // Check if this frame is a constructor frame invoked through 'new'. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 573 | bool IsConstructor() const; |
| 574 | |
| 575 | // Check if this frame has "adapted" arguments in the sense that the |
| 576 | // actual passed arguments are available in an arguments adaptor |
| 577 | // frame below it on the stack. |
| 578 | inline bool has_adapted_arguments() const; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 579 | int GetArgumentsLength() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 580 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 581 | // Garbage collection support. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 582 | virtual void Iterate(ObjectVisitor* v) const; |
| 583 | |
| 584 | // Printing support. |
| 585 | virtual void Print(StringStream* accumulator, |
| 586 | PrintMode mode, |
| 587 | int index) const; |
| 588 | |
| 589 | // Determine the code for the frame. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 590 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 591 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 592 | // Returns the levels of inlining for this frame. |
| 593 | virtual int GetInlineCount() { return 1; } |
| 594 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 595 | // Return a list with JSFunctions of this frame. |
| 596 | virtual void GetFunctions(List<JSFunction*>* functions); |
| 597 | |
| 598 | // Build a list with summaries for this frame including all inlined frames. |
| 599 | virtual void Summarize(List<FrameSummary>* frames); |
| 600 | |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 601 | // Architecture-specific register description. |
| 602 | static Register fp_register(); |
| 603 | static Register context_register(); |
| 604 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 605 | static JavaScriptFrame* cast(StackFrame* frame) { |
| 606 | ASSERT(frame->is_java_script()); |
| 607 | return static_cast<JavaScriptFrame*>(frame); |
| 608 | } |
| 609 | |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 610 | static void PrintTop(Isolate* isolate, |
| 611 | FILE* file, |
| 612 | bool print_args, |
| 613 | bool print_line_number); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 614 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 615 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 616 | inline explicit JavaScriptFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 617 | |
| 618 | virtual Address GetCallerStackPointer() const; |
| 619 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 620 | virtual int GetNumberOfIncomingArguments() const; |
| 621 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 622 | // Garbage collection support. Iterates over incoming arguments, |
| 623 | // receiver, and any callee-saved registers. |
| 624 | void IterateArguments(ObjectVisitor* v) const; |
| 625 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 626 | private: |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 627 | inline Object* function_slot_object() const; |
| 628 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 629 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 630 | }; |
| 631 | |
| 632 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 633 | class StubFrame : public StandardFrame { |
| 634 | public: |
| 635 | virtual Type type() const { return STUB; } |
| 636 | |
| 637 | // GC support. |
| 638 | virtual void Iterate(ObjectVisitor* v) const; |
| 639 | |
| 640 | // Determine the code for the frame. |
| 641 | virtual Code* unchecked_code() const; |
| 642 | |
| 643 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 644 | inline explicit StubFrame(StackFrameIteratorBase* iterator); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 645 | |
| 646 | virtual Address GetCallerStackPointer() const; |
| 647 | |
| 648 | virtual int GetNumberOfIncomingArguments() const; |
| 649 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 650 | friend class StackFrameIteratorBase; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 651 | }; |
| 652 | |
| 653 | |
jkummerow@chromium.org | 5323a9c | 2012-12-10 19:00:50 +0000 | [diff] [blame] | 654 | class OptimizedFrame : public JavaScriptFrame { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 655 | public: |
| 656 | virtual Type type() const { return OPTIMIZED; } |
| 657 | |
| 658 | // GC support. |
| 659 | virtual void Iterate(ObjectVisitor* v) const; |
| 660 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 661 | virtual int GetInlineCount(); |
| 662 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 663 | // Return a list with JSFunctions of this frame. |
| 664 | // The functions are ordered bottom-to-top (i.e. functions.last() |
| 665 | // is the top-most activation) |
| 666 | virtual void GetFunctions(List<JSFunction*>* functions); |
| 667 | |
| 668 | virtual void Summarize(List<FrameSummary>* frames); |
| 669 | |
| 670 | DeoptimizationInputData* GetDeoptimizationData(int* deopt_index); |
| 671 | |
| 672 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 673 | inline explicit OptimizedFrame(StackFrameIteratorBase* iterator); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 674 | |
| 675 | private: |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 676 | JSFunction* LiteralAt(FixedArray* literal_array, int literal_id); |
| 677 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 678 | friend class StackFrameIteratorBase; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 679 | }; |
| 680 | |
| 681 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 682 | // Arguments adaptor frames are automatically inserted below |
| 683 | // JavaScript frames when the actual number of parameters does not |
| 684 | // match the formal number of parameters. |
| 685 | class ArgumentsAdaptorFrame: public JavaScriptFrame { |
| 686 | public: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 687 | virtual Type type() const { return ARGUMENTS_ADAPTOR; } |
| 688 | |
| 689 | // Determine the code for the frame. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 690 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 691 | |
| 692 | static ArgumentsAdaptorFrame* cast(StackFrame* frame) { |
| 693 | ASSERT(frame->is_arguments_adaptor()); |
| 694 | return static_cast<ArgumentsAdaptorFrame*>(frame); |
| 695 | } |
| 696 | |
| 697 | // Printing support. |
| 698 | virtual void Print(StringStream* accumulator, |
| 699 | PrintMode mode, |
| 700 | int index) const; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 701 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 702 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 703 | inline explicit ArgumentsAdaptorFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 704 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 705 | virtual int GetNumberOfIncomingArguments() const; |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 706 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 707 | virtual Address GetCallerStackPointer() const; |
| 708 | |
| 709 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 710 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 711 | }; |
| 712 | |
| 713 | |
| 714 | class InternalFrame: public StandardFrame { |
| 715 | public: |
| 716 | virtual Type type() const { return INTERNAL; } |
| 717 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 718 | // Garbage collection support. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 719 | virtual void Iterate(ObjectVisitor* v) const; |
| 720 | |
| 721 | // Determine the code for the frame. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 722 | virtual Code* unchecked_code() const; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 723 | |
| 724 | static InternalFrame* cast(StackFrame* frame) { |
| 725 | ASSERT(frame->is_internal()); |
| 726 | return static_cast<InternalFrame*>(frame); |
| 727 | } |
| 728 | |
| 729 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 730 | inline explicit InternalFrame(StackFrameIteratorBase* iterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 731 | |
| 732 | virtual Address GetCallerStackPointer() const; |
| 733 | |
| 734 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 735 | friend class StackFrameIteratorBase; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 736 | }; |
| 737 | |
| 738 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 739 | class StubFailureTrampolineFrame: public StandardFrame { |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 740 | public: |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 741 | // sizeof(Arguments) - sizeof(Arguments*) is 3 * kPointerSize), but the |
| 742 | // presubmit script complains about using sizeof() on a type. |
| 743 | static const int kFirstRegisterParameterFrameOffset = |
| 744 | StandardFrameConstants::kMarkerOffset - 3 * kPointerSize; |
| 745 | |
| 746 | static const int kCallerStackParameterCountFrameOffset = |
| 747 | StandardFrameConstants::kMarkerOffset - 2 * kPointerSize; |
| 748 | |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 749 | virtual Type type() const { return STUB_FAILURE_TRAMPOLINE; } |
| 750 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 751 | // Get the code associated with this frame. |
| 752 | // This method could be called during marking phase of GC. |
| 753 | virtual Code* unchecked_code() const; |
| 754 | |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 755 | virtual void Iterate(ObjectVisitor* v) const; |
| 756 | |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 757 | // Architecture-specific register description. |
| 758 | static Register fp_register(); |
| 759 | static Register context_register(); |
| 760 | |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 761 | protected: |
| 762 | inline explicit StubFailureTrampolineFrame( |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 763 | StackFrameIteratorBase* iterator); |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 764 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 765 | virtual Address GetCallerStackPointer() const; |
| 766 | |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 767 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 768 | friend class StackFrameIteratorBase; |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 769 | }; |
| 770 | |
| 771 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 772 | // Construct frames are special trampoline frames introduced to handle |
| 773 | // function invocations through 'new'. |
| 774 | class ConstructFrame: public InternalFrame { |
| 775 | public: |
| 776 | virtual Type type() const { return CONSTRUCT; } |
| 777 | |
| 778 | static ConstructFrame* cast(StackFrame* frame) { |
| 779 | ASSERT(frame->is_construct()); |
| 780 | return static_cast<ConstructFrame*>(frame); |
| 781 | } |
| 782 | |
| 783 | protected: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 784 | inline explicit ConstructFrame(StackFrameIteratorBase* iterator); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 785 | |
| 786 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 787 | friend class StackFrameIteratorBase; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 788 | }; |
| 789 | |
| 790 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 791 | class StackFrameIteratorBase BASE_EMBEDDED { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 792 | public: |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 793 | Isolate* isolate() const { return isolate_; } |
| 794 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 795 | bool done() const { return frame_ == NULL; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 796 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 797 | protected: |
| 798 | // An iterator that iterates over a given thread's stack. |
| 799 | StackFrameIteratorBase(Isolate* isolate, bool can_access_heap_objects); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 800 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 801 | Isolate* isolate_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 802 | #define DECLARE_SINGLETON(ignore, type) type type##_; |
| 803 | STACK_FRAME_TYPE_LIST(DECLARE_SINGLETON) |
| 804 | #undef DECLARE_SINGLETON |
| 805 | StackFrame* frame_; |
| 806 | StackHandler* handler_; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 807 | const bool can_access_heap_objects_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 808 | |
| 809 | StackHandler* handler() const { |
| 810 | ASSERT(!done()); |
| 811 | return handler_; |
| 812 | } |
| 813 | |
| 814 | // Get the type-specific frame singleton in a given state. |
| 815 | StackFrame* SingletonFor(StackFrame::Type type, StackFrame::State* state); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 816 | // A helper function, can return a NULL pointer. |
| 817 | StackFrame* SingletonFor(StackFrame::Type type); |
| 818 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 819 | private: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 820 | friend class StackFrame; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 821 | DISALLOW_COPY_AND_ASSIGN(StackFrameIteratorBase); |
| 822 | }; |
| 823 | |
| 824 | |
| 825 | class StackFrameIterator: public StackFrameIteratorBase { |
| 826 | public: |
| 827 | // An iterator that iterates over the isolate's current thread's stack, |
| 828 | explicit StackFrameIterator(Isolate* isolate); |
| 829 | // An iterator that iterates over a given thread's stack. |
| 830 | StackFrameIterator(Isolate* isolate, ThreadLocalTop* t); |
| 831 | |
| 832 | StackFrame* frame() const { |
| 833 | ASSERT(!done()); |
| 834 | return frame_; |
| 835 | } |
| 836 | void Advance(); |
| 837 | |
| 838 | private: |
| 839 | // Go back to the first frame. |
| 840 | void Reset(ThreadLocalTop* top); |
| 841 | |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 842 | DISALLOW_COPY_AND_ASSIGN(StackFrameIterator); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 843 | }; |
| 844 | |
| 845 | |
| 846 | // Iterator that supports iterating through all JavaScript frames. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 847 | class JavaScriptFrameIterator BASE_EMBEDDED { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 848 | public: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 849 | inline explicit JavaScriptFrameIterator(Isolate* isolate); |
| 850 | inline JavaScriptFrameIterator(Isolate* isolate, ThreadLocalTop* top); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 851 | // Skip frames until the frame with the given id is reached. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 852 | JavaScriptFrameIterator(Isolate* isolate, StackFrame::Id id); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 853 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 854 | inline JavaScriptFrame* frame() const; |
| 855 | |
| 856 | bool done() const { return iterator_.done(); } |
| 857 | void Advance(); |
| 858 | |
| 859 | // Advance to the frame holding the arguments for the current |
| 860 | // frame. This only affects the current frame if it has adapted |
| 861 | // arguments. |
| 862 | void AdvanceToArgumentsFrame(); |
| 863 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 864 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 865 | StackFrameIterator iterator_; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 866 | }; |
| 867 | |
| 868 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 869 | // NOTE: The stack trace frame iterator is an iterator that only |
| 870 | // traverse proper JavaScript frames; that is JavaScript frames that |
| 871 | // have proper JavaScript functions. This excludes the problematic |
| 872 | // functions in runtime.js. |
| 873 | class StackTraceFrameIterator: public JavaScriptFrameIterator { |
| 874 | public: |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 875 | explicit StackTraceFrameIterator(Isolate* isolate); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 876 | void Advance(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 877 | |
| 878 | private: |
| 879 | bool IsValidFrame(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 880 | }; |
| 881 | |
| 882 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 883 | class SafeStackFrameIterator: public StackFrameIteratorBase { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 884 | public: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 885 | SafeStackFrameIterator(Isolate* isolate, |
| 886 | Address fp, Address sp, |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 887 | Address js_entry_sp); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 888 | |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 889 | inline StackFrame* frame() const; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 890 | void Advance(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 891 | |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 892 | StackFrame::Type top_frame_type() const { return top_frame_type_; } |
| 893 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 894 | private: |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 895 | void AdvanceOneFrame(); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 896 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 897 | bool IsValidStackAddress(Address addr) const { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 898 | return low_bound_ <= addr && addr <= high_bound_; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 899 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 900 | bool IsValidFrame(StackFrame* frame) const; |
| 901 | bool IsValidCaller(StackFrame* frame); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 902 | bool IsValidExitFrame(Address fp) const; |
| 903 | bool IsValidTop(ThreadLocalTop* top) const; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 904 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 905 | const Address low_bound_; |
| 906 | const Address high_bound_; |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 907 | StackFrame::Type top_frame_type_; |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 908 | ExternalCallbackScope* external_callback_scope_; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 909 | }; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 910 | |
| 911 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 912 | class StackFrameLocator BASE_EMBEDDED { |
| 913 | public: |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 914 | explicit StackFrameLocator(Isolate* isolate) : iterator_(isolate) {} |
| 915 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 916 | // Find the nth JavaScript frame on the stack. The caller must |
| 917 | // guarantee that such a frame exists. |
| 918 | JavaScriptFrame* FindJavaScriptFrame(int n); |
| 919 | |
| 920 | private: |
| 921 | StackFrameIterator iterator_; |
| 922 | }; |
| 923 | |
| 924 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 925 | // Reads all frames on the current stack and copies them into the current |
| 926 | // zone memory. |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 927 | Vector<StackFrame*> CreateStackMap(Isolate* isolate, Zone* zone); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 928 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 929 | } } // namespace v8::internal |
| 930 | |
| 931 | #endif // V8_FRAMES_H_ |