newlib-cygwin/libgloss/libnosys/sbrk.c

19 lines
331 B
C
Raw Normal View History

2003-04-24 20:36:08 +08:00
/* Version of sbrk for no operating system. */
2000-03-18 06:48:54 +08:00
2003-04-24 20:36:08 +08:00
void *
_sbrk (incr)
int incr;
2000-03-18 06:48:54 +08:00
{
2003-04-24 20:36:08 +08:00
extern char end; /* Set by linker. */
static char * heap_end;
char * prev_heap_end;
if (heap_end == 0)
heap_end = & end;
2000-03-18 06:48:54 +08:00
prev_heap_end = heap_end;
heap_end += incr;
2003-04-24 20:36:08 +08:00
return (void *) prev_heap_end;
2000-03-18 06:48:54 +08:00
}