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/* brk system call for Linux/ppc.
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include <errno.h>
void *__curbrk;
int
__brk (void *addr)
{
register void *syscall_arg asm ("r3") = addr;
register int syscall_number asm ("r0") = SYS_ify (brk);
register void *newbrk asm ("r3");
asm ("sc"
: "=r" (newbrk)
: "r" (syscall_arg), "r" (syscall_number)
: "r4","r5","r6","r7","r8","r9","r10","r11","r12",
"ctr", "mq", "cr0", "cr1", "cr6", "cr7");
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
weak_alias (__brk, brk)
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