void CallStack::dump(const char* logtag, const char* prefix) const { backtrace_symbol_t symbols[mCount]; get_backtrace_symbols(mStack, mCount, symbols); for (size_t i = 0; i < mCount; i++) { char line[MAX_BACKTRACE_LINE_LENGTH]; format_backtrace_line(i, &mStack[i], &symbols[i], line, MAX_BACKTRACE_LINE_LENGTH); ALOG(LOG_DEBUG, logtag, "%s%s", prefix ? prefix : "", line); } free_backtrace_symbols(symbols, mCount); }
String8 CallStack::toString(const char* prefix) const { String8 str; backtrace_symbol_t symbols[mCount]; get_backtrace_symbols(mStack, mCount, symbols); for (size_t i = 0; i < mCount; i++) { char line[MAX_BACKTRACE_LINE_LENGTH]; format_backtrace_line(i, &mStack[i], &symbols[i], line, MAX_BACKTRACE_LINE_LENGTH); if (prefix) { str.append(prefix); } str.append(line); str.append("\n"); } free_backtrace_symbols(symbols, mCount); return str; }
/* * Dump the native stack for the specified thread. */ void dvmDumpNativeStack(const DebugOutputTarget* target, pid_t tid) { #ifdef HAVE_ANDROID_OS const size_t MAX_DEPTH = 32; backtrace_frame_t backtrace[MAX_DEPTH]; ssize_t frames = unwind_backtrace_thread(tid, backtrace, 0, MAX_DEPTH); if (frames > 0) { backtrace_symbol_t backtrace_symbols[MAX_DEPTH]; get_backtrace_symbols(backtrace, frames, backtrace_symbols); for (size_t i = 0; i < size_t(frames); i++) { char line[MAX_BACKTRACE_LINE_LENGTH]; format_backtrace_line(i, &backtrace[i], &backtrace_symbols[i], line, MAX_BACKTRACE_LINE_LENGTH); dvmPrintDebugMessage(target, " %s\n", line); } free_backtrace_symbols(backtrace_symbols, frames); } #endif }