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| #include <libunwind.h>
| #include <stdlib.h>
|
| void backtrace(int lower_bound) {
| unw_context_t context;
| unw_getcontext(&context);
|
| unw_cursor_t cursor;
| unw_init_local(&cursor, &context);
|
| int n = 0;
| do {
| ++n;
| if (n > 100) {
| abort();
| }
| } while (unw_step(&cursor) > 0);
|
| if (n < lower_bound) {
| abort();
| }
| }
|
| void test1(int i) {
| backtrace(i);
| }
|
| void test2(int i, int j) {
| backtrace(i);
| test1(j);
| }
|
| void test3(int i, int j, int k) {
| backtrace(i);
| test2(j, k);
| }
|
| int main() {
| test1(1);
| test2(1, 2);
| test3(1, 2, 3);
| }
|
|
