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/* brk system call for Linux/ppc.
Copyright (C) 1995, 1996, 1997, 1999, 2000 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#include <bp-sym.h>
#include <bp-asm.h>
.comm __curbrk,4,4
.section ".text"
ENTRY (BP_SYM (__brk))
DISCARD_BOUNDS (r3) /* the bounds are meaningless, so toss 'em */
stwu r1,-16(r1)
stw r3,8(r1)
DO_CALL(SYS_ify(brk))
lwz r6,8(r1)
#ifdef PIC
mflr r4
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,__curbrk-1b@ha
mtlr r4
stw r3,__curbrk-1b@l(r5)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
lwz r5,__curbrk@got(r5)
mtlr r4
stw r3,0(r5)
# endif
#else
lis r4,__curbrk@ha
stw r3,__curbrk@l(r4)
#endif
cmplw r6,r3
addi r1,r1,16
li r3,0
blelr+
li r3,ENOMEM
b __syscall_error@local
END (BP_SYM (__brk))
weak_alias (BP_SYM (__brk), BP_SYM (brk))
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