69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
#ifndef CRASH_HANDLER_LIBUNWIND_H
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#define CRASH_HANDLER_LIBUNWIND_H
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#ifdef USE_LIBUNWIND
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#include <libunwind.h>
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#include <csignal>
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#include <cstdio>
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#include <cstdlib>
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namespace crash_handler_libunwind {
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inline void print_stacktrace_libunwind() {
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// Use libunwind for better stack traces
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unw_cursor_t cursor;
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unw_context_t context;
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unw_getcontext(&context);
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unw_init_local(&cursor, &context);
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int depth = 0;
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printf("Stack trace (libunwind):\n");
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while (unw_step(&cursor) > 0) {
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unw_word_t offset, pc;
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char sym[256];
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unw_get_reg(&cursor, UNW_REG_IP, &pc);
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if (pc == 0) {
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break;
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}
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printf("#%-2d 0x%lx:", depth++, pc);
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if (unw_get_proc_name(&cursor, sym, sizeof(sym), &offset) == 0) {
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printf(" (%s+0x%lx)\n", sym, offset);
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} else {
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printf(" -- symbol not found\n");
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}
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}
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}
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inline void crash_handler(int sig) {
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fprintf(stderr, "Error: signal %d:\n", sig);
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print_stacktrace_libunwind();
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exit(1);
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}
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inline void setup_crash_handler() {
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// Set up POSIX signal handlers
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signal(SIGABRT, crash_handler);
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signal(SIGFPE, crash_handler);
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signal(SIGILL, crash_handler);
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signal(SIGINT, crash_handler);
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signal(SIGSEGV, crash_handler);
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signal(SIGTERM, crash_handler);
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// libunwind is ready to use
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}
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inline void print_stacktrace() {
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print_stacktrace_libunwind();
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}
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} // namespace crash_handler_libunwind
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#endif // USE_LIBUNWIND
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#endif // CRASH_HANDLER_LIBUNWIND_H
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