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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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 |
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| 5921 } | 5921 } |
| 5922 | 5922 |
| 5923 | 5923 |
| 5924 static Object* Runtime_GetCFrames(Arguments args) { | 5924 static Object* Runtime_GetCFrames(Arguments args) { |
| 5925 HandleScope scope; | 5925 HandleScope scope; |
| 5926 ASSERT(args.length() == 1); | 5926 ASSERT(args.length() == 1); |
| 5927 Object* result = Runtime_CheckExecutionState(args); | 5927 Object* result = Runtime_CheckExecutionState(args); |
| 5928 if (result->IsFailure()) return result; | 5928 if (result->IsFailure()) return result; |
| 5929 | 5929 |
| 5930 static const int kMaxCFramesSize = 200; | 5930 static const int kMaxCFramesSize = 200; |
| 5931 OS::StackFrame frames[kMaxCFramesSize]; | 5931 ScopedVector<OS::StackFrame> frames(kMaxCFramesSize); |
| 5932 int frames_count = OS::StackWalk(frames, kMaxCFramesSize); | 5932 int frames_count = OS::StackWalk(frames); |
| 5933 if (frames_count == OS::kStackWalkError) { | 5933 if (frames_count == OS::kStackWalkError) { |
| 5934 return Heap::undefined_value(); | 5934 return Heap::undefined_value(); |
| 5935 } | 5935 } |
| 5936 | 5936 |
| 5937 Handle<String> address_str = Factory::LookupAsciiSymbol("address"); | 5937 Handle<String> address_str = Factory::LookupAsciiSymbol("address"); |
| 5938 Handle<String> text_str = Factory::LookupAsciiSymbol("text"); | 5938 Handle<String> text_str = Factory::LookupAsciiSymbol("text"); |
| 5939 Handle<FixedArray> frames_array = Factory::NewFixedArray(frames_count); | 5939 Handle<FixedArray> frames_array = Factory::NewFixedArray(frames_count); |
| 5940 for (int i = 0; i < frames_count; i++) { | 5940 for (int i = 0; i < frames_count; i++) { |
| 5941 Handle<JSObject> frame_value = Factory::NewJSObject(Top::object_function()); | 5941 Handle<JSObject> frame_value = Factory::NewJSObject(Top::object_function()); |
| 5942 frame_value->SetProperty( | 5942 frame_value->SetProperty( |
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| 6952 } else { | 6952 } else { |
| 6953 // Handle last resort GC and make sure to allow future allocations | 6953 // Handle last resort GC and make sure to allow future allocations |
| 6954 // to grow the heap without causing GCs (if possible). | 6954 // to grow the heap without causing GCs (if possible). |
| 6955 Counters::gc_last_resort_from_js.Increment(); | 6955 Counters::gc_last_resort_from_js.Increment(); |
| 6956 Heap::CollectAllGarbage(); | 6956 Heap::CollectAllGarbage(); |
| 6957 } | 6957 } |
| 6958 } | 6958 } |
| 6959 | 6959 |
| 6960 | 6960 |
| 6961 } } // namespace v8::internal | 6961 } } // namespace v8::internal |
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