25 lines
379 B
C
25 lines
379 B
C
|
#include <_ansi.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include "trap.h"
|
||
|
|
|
||
|
|
|
||
|
|
caddr_t
|
||
|
|
sbrk (size_t incr)
|
||
|
|
{
|
||
|
|
extern char end; /* Defined by the linker */
|
||
|
|
static char *heap_end;
|
||
|
|
char *prev_heap_end;
|
||
|
|
|
||
|
|
char *sp = (char *) &sp;
|
||
|
|
|
||
|
|
if (heap_end == 0)
|
||
|
|
{
|
||
|
|
heap_end = &end;
|
||
|
|
}
|
||
|
|
prev_heap_end = heap_end;
|
||
|
|
heap_end += incr;
|
||
|
|
|
||
|
|
return (caddr_t) prev_heap_end;
|
||
|
|
}
|