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/* brk system call for Linux/ppc.
Copyright (C) 1995-97, 1999, 2000, 2006 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., 51 Franklin Street, Fifth Floor, Boston MA
02110-1301 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 */
mflr r0
stwu r1,-16(r1)
cfi_adjust_cfa_offset (16)
stw r3,8(r1)
stw r0,20(r1)
cfi_offset (lr, 4)
DO_CALL(SYS_ify(brk))
lwz r6,8(r1)
#ifdef PIC
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,__curbrk-1b@ha
stw r3,__curbrk-1b@l(r5)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
lwz r5,__curbrk@got(r5)
stw r3,0(r5)
# endif
#else
lis r4,__curbrk@ha
stw r3,__curbrk@l(r4)
#endif
lwz r0,20(r1)
cmplw r6,r3
addi r1,r1,16
mtlr r0
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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