toolchain/gcc/newlib/libc/syscalls/syssbrk.c

   1 /* connector for sbrk */
   2
   3 #include <reent.h>
   4 #include <unistd.h>
   5
   6 extern void *_sbrk_r (struct _reent *, ptrdiff_t);
   7 extern void *_sbrk (ptrdiff_t);
   8
   9 void *
  10 _DEFUN (sbrk, (incr),
  11      ptrdiff_t incr)
  12 {
  13 #ifdef REENTRANT_SYSCALLS_PROVIDED
  14   return _sbrk_r (_REENT, incr);
  15 #else
  16   return _sbrk (incr);
  17 #endif
  18 }