syssbrk.c

来自「KPIT GNU Tools is a set of GNU developme」· C语言 代码 · 共 19 行

/* connector for sbrk */

#include <reent.h>
#include <unistd.h>

extern void *_sbrk_r (struct _reent *, ptrdiff_t);
extern void *_sbrk (ptrdiff_t);

void *
_DEFUN (sbrk, (incr),
     ptrdiff_t incr)
{
#ifdef REENTRANT_SYSCALLS_PROVIDED
  return _sbrk_r (_REENT, incr);
#else
  return _sbrk (incr);
#endif
}