31 lines
927 B
C
31 lines
927 B
C
|
/*
|
||
|
|
* sim-sbrk.c -- PowerPC sbrk support when running under the simulator.
|
||
|
|
*
|
||
|
|
* Copyright (c) 1995 Cygnus Support
|
||
|
|
*
|
||
|
|
* The authors hereby grant permission to use, copy, modify, distribute,
|
||
|
|
* and license this software and its documentation for any purpose, provided
|
||
|
|
* that existing copyright notices are retained in all copies and that this
|
||
|
|
* notice is included verbatim in any distributions. No written agreement,
|
||
|
|
* license, or royalty fee is required for any of the authorized uses.
|
||
|
|
* Modifications to this software may be copyrighted by their authors
|
||
|
|
* and need not follow the licensing terms described here, provided that
|
||
|
|
* the new terms are clearly indicated on the first page of each file where
|
||
|
|
* they apply.
|
||
|
|
*/
|
||
|
|
|
||
|
|
extern char _end[];
|
||
|
|
static char *curbrk = _end;
|
||
|
|
|
||
|
|
char *
|
||
|
|
sbrk (incr)
|
||
|
|
int incr;
|
||
|
|
{
|
||
|
|
char *oldbrk = curbrk;
|
||
|
|
curbrk += incr;
|
||
|
|
if (brk (curbrk) == -1)
|
||
|
|
return (char *) -1;
|
||
|
|
|
||
|
|
return oldbrk;
|
||
|
|
}
|