gistfile1.txt

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif

#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#define BT_BUF_SIZE 100
#include <link.h>
#include <stdio.h>
#include <stdlib.h>

static int
callback(struct dl_phdr_info *info, size_t size, void *data)
{
  int j;
  static int once = 0;

  if (once) return 0;
  once = 1;

  printf("relocation: 0x%lx\n", (long)info->dlpi_addr);

  for (j = 0; j < info->dlpi_phnum; j++) {
    if (info->dlpi_phdr[j].p_type == PT_LOAD) {
      printf("a.out loaded at %p %p\n",
             (void *) (info->dlpi_addr + info->dlpi_phdr[j].p_vaddr), (long)info->dlpi_phdr[j].p_memsz);

      //break;
    }
  }
  return 0;
}

int
main(int argc, char *argv[])
{

  int j, nptrs;
  void *buffer[BT_BUF_SIZE];
  char **strings;

  nptrs = backtrace(buffer, BT_BUF_SIZE);
  printf("backtrace() returned %d addresses\n", nptrs);

  for (int i = 0; i < nptrs; i++) {
    printf("[%p ]\n", buffer[i]);
  } 

  dl_iterate_phdr(callback, NULL);
  exit(EXIT_SUCCESS);
}
nad