Subversion Repositories openrisc

/*

 * sim-sbrk.c -- m68k sbrk support when running under the simulator.

 *

 * Copyright (c) 1995, 2001 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;

}