135 lines
3.4 KiB
C++
135 lines
3.4 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#include "port/stack_trace.h"
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namespace rocksdb {
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namespace port {
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#if defined(ROCKSDB_LITE) || !(defined(OS_LINUX) || defined(OS_MACOSX))
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// noop
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void InstallStackTraceHandler() {}
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void PrintStack(int first_frames_to_skip) {}
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#else
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#include <execinfo.h>
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#include <signal.h>
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#include <stdio.h>
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// It's odd that including this breaks in GCC 7 but the build doesn't break
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// if I remove it even under GCC 4.8.
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// #include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <cxxabi.h>
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namespace {
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#ifdef OS_LINUX
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const char* GetExecutableName() {
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static char name[1024];
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char link[1024];
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snprintf(link, sizeof(link), "/proc/%d/exe", getpid());
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auto read = readlink(link, name, sizeof(name));
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if (-1 == read) {
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return nullptr;
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} else {
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name[read] = 0;
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return name;
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}
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}
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void PrintStackTraceLine(const char* symbol, void* frame) {
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static const char* executable = GetExecutableName();
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if (symbol) {
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fprintf(stderr, "%s ", symbol);
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}
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if (executable) {
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// out source to addr2line, for the address translation
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const int kLineMax = 256;
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char cmd[kLineMax];
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snprintf(cmd, kLineMax, "addr2line %p -e %s -f -C 2>&1", frame, executable);
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auto f = popen(cmd, "r");
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if (f) {
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char line[kLineMax];
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while (fgets(line, sizeof(line), f)) {
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line[strlen(line) - 1] = 0; // remove newline
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fprintf(stderr, "%s\t", line);
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}
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pclose(f);
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}
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} else {
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fprintf(stderr, " %p", frame);
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}
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fprintf(stderr, "\n");
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}
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#elif OS_MACOSX
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void PrintStackTraceLine(const char* symbol, void* frame) {
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static int pid = getpid();
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// out source to atos, for the address translation
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const int kLineMax = 256;
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char cmd[kLineMax];
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snprintf(cmd, kLineMax, "xcrun atos %p -p %d 2>&1", frame, pid);
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auto f = popen(cmd, "r");
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if (f) {
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char line[kLineMax];
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while (fgets(line, sizeof(line), f)) {
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line[strlen(line) - 1] = 0; // remove newline
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fprintf(stderr, "%s\t", line);
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}
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pclose(f);
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} else if (symbol) {
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fprintf(stderr, "%s ", symbol);
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}
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fprintf(stderr, "\n");
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}
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#endif
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} // namespace
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void PrintStack(int first_frames_to_skip) {
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const int kMaxFrames = 100;
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void* frames[kMaxFrames];
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auto num_frames = backtrace(frames, kMaxFrames);
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auto symbols = backtrace_symbols(frames, num_frames);
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for (int i = first_frames_to_skip; i < num_frames; ++i) {
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fprintf(stderr, "#%-2d ", i - first_frames_to_skip);
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PrintStackTraceLine((symbols != nullptr) ? symbols[i] : nullptr, frames[i]);
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}
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}
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static void StackTraceHandler(int sig) {
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// reset to default handler
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signal(sig, SIG_DFL);
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fprintf(stderr, "Received signal %d (%s)\n", sig, strsignal(sig));
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// skip the top three signal handler related frames
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PrintStack(3);
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// re-signal to default handler (so we still get core dump if needed...)
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raise(sig);
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}
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void InstallStackTraceHandler() {
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// just use the plain old signal as it's simple and sufficient
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// for this use case
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signal(SIGILL, StackTraceHandler);
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signal(SIGSEGV, StackTraceHandler);
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signal(SIGBUS, StackTraceHandler);
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signal(SIGABRT, StackTraceHandler);
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}
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#endif
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} // namespace port
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} // namespace rocksdb
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