ld/testsuite/ld-elf/pr23428.c

   1 /* Ensure we get syscall declared.  */
   2 #define _DEFAULT_SOURCE
   3
   4 #include <unistd.h>
   5 #include <link.h>
   6 #include <syscall.h>
   7
   8 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1)
   9
  10 int
  11 main (int argc, char **argv)
  12 {
  13   char **ev = &argv[argc + 1];
  14   char **evp = ev;
  15   ElfW(auxv_t) *av;
  16   const ElfW(Phdr) *phdr = NULL;
  17   size_t phnum = 0;
  18   size_t loadnum = 0;
  19   int fd = STDOUT_FILENO;
  20   size_t i;
  21
  22   while (*evp++ != NULL)
  23     ;
  24
  25   av = (ElfW(auxv_t) *) evp;
  26
  27   for (; av->a_type != AT_NULL; ++av)
  28     switch (av->a_type)
  29       {
  30       case AT_PHDR:
  31         phdr = (const void *) av->a_un.a_val;
  32         break;
  33       case AT_PHNUM:
  34         phnum = av->a_un.a_val;
  35         break;
  36       }
  37
  38   for (i = 0; i < phnum; i++, phdr++)
  39     if (phdr->p_type == PT_LOAD)
  40       loadnum++;
  41
  42   syscall (SYS_write, fd, STRING_COMMA_LEN ("PASS\n"));
  43
  44   syscall (SYS_exit, !loadnum);
  45   return 0;
  46 }