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