libunwind/test/libunwind_01.pass.cpp

   1 #include <libunwind.h>
   2 #include <stdlib.h>
   3
   4 void backtrace(int lower_bound) {
   5   unw_context_t context;
   6   unw_getcontext(&context);
   7
   8   unw_cursor_t cursor;
   9   unw_init_local(&cursor, &context);
  10
  11   int n = 0;
  12   do {
  13     ++n;
  14     if (n > 100) {
  15       abort();
  16     }
  17   } while (unw_step(&cursor) > 0);
  18
  19   if (n < lower_bound) {
  20     abort();
  21   }
  22 }
  23
  24 void test1(int i) {
  25   backtrace(i);
  26 }
  27
  28 void test2(int i, int j) {
  29   backtrace(i);
  30   test1(j);
  31 }
  32
  33 void test3(int i, int j, int k) {
  34   backtrace(i);
  35   test2(j, k);
  36 }
  37
  38 int main() {
  39   test1(1);
  40   test2(1, 2);
  41   test3(1, 2, 3);
  42 }