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30 // Author: Andrew Schwartzmeyer
32 // Windows implementation - just use CaptureStackBackTrace
35 #include "stacktrace.h"
39 _START_GOOGLE_NAMESPACE_
41 static bool ready_to_run = false;
42 class StackTraceInit {
46 // Initialize the symbol handler
47 // https://msdn.microsoft.com/en-us/library/windows/desktop/ms680344(v=vs.85).aspx
48 hProcess = GetCurrentProcess();
49 SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
50 SymInitialize(hProcess, NULL, true);
59 static const StackTraceInit module_initializer; // Force initialization
61 // If you change this function, also change GetStackFrames below.
62 int GetStackTrace(void** result, int max_depth, int skip_count) {
66 skip_count++; // we want to skip the current frame as well
70 std::vector<void*> stack(max_depth);
71 // This API is thread-safe (moreover it walks only the current thread).
72 int size = CaptureStackBackTrace(skip_count, max_depth, &stack[0], NULL);
73 for (int i = 0; i < size; ++i) {
74 // Resolve symbol information from address.
75 char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR)];
76 SYMBOL_INFO* symbol = reinterpret_cast<SYMBOL_INFO*>(buffer);
77 symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
78 symbol->MaxNameLen = MAX_SYM_NAME;
79 SymFromAddr(module_initializer.hProcess, reinterpret_cast<DWORD64>(stack[i]), 0, symbol);
86 _END_GOOGLE_NAMESPACE_