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  1.      #include <execinfo.h>
  2.      #include <stdio.h>
  3.      #include <stdlib.h>
  4.  
  5.      /* Obtain a backtrace and print it to stdout. */
  6.      void
  7.      print_trace ()
  8.      {
  9.        void *array[10];
  10.        size_t size;
  11.        char **strings;
  12.        size_t i;
  13.  
  14.        size = backtrace (array, 10);
  15.        strings = backtrace_symbols (array, size);
  16.  
  17.        printf ("Obtained %zd stack frames.\n", size);
  18.  
  19.        for (i = 0; i < size; i++)
  20.           printf ("%s\n", strings[i]);
  21.  
  22.        free (strings);
  23.      }
  24.  
  25.      /* A dummy function to make the backtrace more interesting. */
  26.      void
  27.      dummy_function (int i)
  28.      {
  29.        (void)i;
  30.        print_trace ();
  31.      }
  32.  
  33.      int
  34.      main (void)
  35.      {
  36.        int i = (int)&main - (int)&dummy_function + (int)&main - (int)&print_trace;
  37.        dummy_function (i);
  38.        return 0;
  39.      }
Success #stdin #stdout 0.01s 1908KB
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stdin
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Standard input is empty
stdout
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Obtained 2 stack frames.
./prog [0x804855a]
./prog [0x8048481]
https://ideone.com/HBAYU
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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