gcc/testsuite/gcc.dg/ultrasp8.c

   1 /* PR target/10067 */
   2 /* Originator: <dat94ali@ludat.lth.se> */
   3 /* { dg-do compile { target sparc*-*-* } } */
   4 /* { dg-options "-O2 -mtune=supersparc" { target sparc64-*-* sparcv9-*-* } } */
   5
   6 struct _reent;
   7
   8 extern unsigned long __malloc_trim_threshold;
   9 extern unsigned long __malloc_top_pad;
  10
  11 int _mallopt_r(struct _reent *reent_ptr, int param_number, int value)
  12 {
  13   __malloc_lock(reent_ptr);
  14
  15   switch(param_number)
  16   {
  17     case -1:
  18       __malloc_trim_threshold = value;
  19       __malloc_unlock(reent_ptr);
  20       return 1;
  21
  22     case -2:
  23       __malloc_top_pad = value;
  24       __malloc_unlock(reent_ptr);
  25       return 1;
  26
  27     case -3:
  28       __malloc_unlock(reent_ptr);
  29       return 1;
  30
  31     case -4:
  32       __malloc_unlock(reent_ptr);
  33       return value == 0;
  34
  35     default:
  36       __malloc_unlock(reent_ptr);
  37       return 0;
  38   }
  39 }