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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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