| #include <corkscrew/backtrace.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| void do_backtrace() { |
| const size_t MAX_DEPTH = 32; |
| backtrace_frame_t* frames = (backtrace_frame_t*) malloc(sizeof(backtrace_frame_t) * MAX_DEPTH); |
| ssize_t frame_count = unwind_backtrace(frames, 0, MAX_DEPTH); |
| fprintf(stderr, "frame_count=%d\n", (int) frame_count); |
| |
| backtrace_symbol_t* backtrace_symbols = (backtrace_symbol_t*) malloc(sizeof(backtrace_symbol_t) * frame_count); |
| get_backtrace_symbols(frames, frame_count, backtrace_symbols); |
| |
| for (size_t i = 0; i < (size_t) frame_count; ++i) { |
| char line[MAX_BACKTRACE_LINE_LENGTH]; |
| format_backtrace_line(i, &frames[i], &backtrace_symbols[i], |
| line, MAX_BACKTRACE_LINE_LENGTH); |
| fprintf(stderr, " %s\n", line); |
| } |
| |
| free_backtrace_symbols(backtrace_symbols, frame_count); |
| free(backtrace_symbols); |
| free(frames); |
| } |
| |
| __attribute__ ((noinline)) void g() { |
| fprintf(stderr, "g()\n"); |
| do_backtrace(); |
| } |
| |
| __attribute__ ((noinline)) int f(int i) { |
| fprintf(stderr, "f(%i)\n", i); |
| if (i == 0) { |
| g(); |
| return 0; |
| } |
| return f(i - 1); |
| } |
| |
| int main() { |
| return f(5); |
| } |