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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "lib/stacktrace.h" | 5 #include "lib/stacktrace.h" |
| 6 #include "vm/bootstrap_natives.h" | 6 #include "vm/bootstrap_natives.h" |
| 7 #include "vm/exceptions.h" | 7 #include "vm/exceptions.h" |
| 8 #include "vm/object_store.h" | 8 #include "vm/object_store.h" |
| 9 #include "vm/runtime_entry.h" | 9 #include "vm/runtime_entry.h" |
| 10 #include "vm/stack_frame.h" | 10 #include "vm/stack_frame.h" |
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| 27 code = frame->LookupDartCode(); | 27 code = frame->LookupDartCode(); |
| 28 offset = Smi::New(frame->pc() - code.PayloadStart()); | 28 offset = Smi::New(frame->pc() - code.PayloadStart()); |
| 29 code_list.Add(code); | 29 code_list.Add(code); |
| 30 pc_offset_list.Add(offset); | 30 pc_offset_list.Add(offset); |
| 31 } | 31 } |
| 32 } | 32 } |
| 33 frame = frames.NextFrame(); | 33 frame = frames.NextFrame(); |
| 34 } | 34 } |
| 35 } | 35 } |
| 36 | 36 |
| 37 // Creates a Stacktrace object from the current stack. | 37 // Creates a StackTrace object from the current stack. |
| 38 // | 38 // |
| 39 // Skips the first skip_frames Dart frames. | 39 // Skips the first skip_frames Dart frames. |
| 40 const Stacktrace& GetCurrentStacktrace(int skip_frames) { | 40 const StackTrace& GetCurrentStackTrace(int skip_frames) { |
| 41 const GrowableObjectArray& code_list = | 41 const GrowableObjectArray& code_list = |
| 42 GrowableObjectArray::Handle(GrowableObjectArray::New()); | 42 GrowableObjectArray::Handle(GrowableObjectArray::New()); |
| 43 const GrowableObjectArray& pc_offset_list = | 43 const GrowableObjectArray& pc_offset_list = |
| 44 GrowableObjectArray::Handle(GrowableObjectArray::New()); | 44 GrowableObjectArray::Handle(GrowableObjectArray::New()); |
| 45 IterateFrames(code_list, pc_offset_list, skip_frames); | 45 IterateFrames(code_list, pc_offset_list, skip_frames); |
| 46 const Array& code_array = Array::Handle(Array::MakeArray(code_list)); | 46 const Array& code_array = Array::Handle(Array::MakeArray(code_list)); |
| 47 const Array& pc_offset_array = | 47 const Array& pc_offset_array = |
| 48 Array::Handle(Array::MakeArray(pc_offset_list)); | 48 Array::Handle(Array::MakeArray(pc_offset_list)); |
| 49 const Stacktrace& stacktrace = | 49 const StackTrace& stacktrace = |
| 50 Stacktrace::Handle(Stacktrace::New(code_array, pc_offset_array)); | 50 StackTrace::Handle(StackTrace::New(code_array, pc_offset_array)); |
| 51 return stacktrace; | 51 return stacktrace; |
| 52 } | 52 } |
| 53 | 53 |
| 54 // An utility method for convenient printing of dart stack traces when | 54 // An utility method for convenient printing of dart stack traces when |
| 55 // inside 'gdb'. Note: This function will only work when there is a | 55 // inside 'gdb'. Note: This function will only work when there is a |
| 56 // valid exit frame information. It will not work when a breakpoint is | 56 // valid exit frame information. It will not work when a breakpoint is |
| 57 // set in dart code and control is got inside 'gdb' without going through | 57 // set in dart code and control is got inside 'gdb' without going through |
| 58 // the runtime or native transition stub. | 58 // the runtime or native transition stub. |
| 59 void _printCurrentStacktrace() { | 59 void _printCurrentStackTrace() { |
| 60 const Stacktrace& stacktrace = GetCurrentStacktrace(0); | 60 const StackTrace& stacktrace = GetCurrentStackTrace(0); |
| 61 OS::PrintErr("=== Current Trace:\n%s===\n", stacktrace.ToCString()); | 61 OS::PrintErr("=== Current Trace:\n%s===\n", stacktrace.ToCString()); |
| 62 } | 62 } |
| 63 | 63 |
| 64 // Like _printCurrentStacktrace, but works in a NoSafepointScope. | 64 // Like _printCurrentStackTrace, but works in a NoSafepointScope. |
| 65 void _printCurrentStacktraceNoSafepoint() { | 65 void _printCurrentStackTraceNoSafepoint() { |
| 66 StackFrameIterator frames(StackFrameIterator::kDontValidateFrames); | 66 StackFrameIterator frames(StackFrameIterator::kDontValidateFrames); |
| 67 StackFrame* frame = frames.NextFrame(); | 67 StackFrame* frame = frames.NextFrame(); |
| 68 while (frame != NULL) { | 68 while (frame != NULL) { |
| 69 OS::Print("%s\n", frame->ToCString()); | 69 OS::Print("%s\n", frame->ToCString()); |
| 70 frame = frames.NextFrame(); | 70 frame = frames.NextFrame(); |
| 71 } | 71 } |
| 72 } | 72 } |
| 73 | 73 |
| 74 DEFINE_NATIVE_ENTRY(StackTrace_current, 0) { | 74 DEFINE_NATIVE_ENTRY(StackTrace_current, 0) { |
| 75 const Stacktrace& stacktrace = GetCurrentStacktrace(1); | 75 const StackTrace& stacktrace = GetCurrentStackTrace(1); |
| 76 return stacktrace.raw(); | 76 return stacktrace.raw(); |
| 77 } | 77 } |
| 78 | 78 |
| 79 } // namespace dart | 79 } // namespace dart |
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