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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, see
<http://www.gnu.org/licenses/>. */
#include <features.h>
#include "ppc_asm.h"
#define _ERRNO_H 1
#include <bits/errno.h>
#include <sys/syscall.h>
#ifdef __NR_brk
#ifdef __PIC__
.section .bss
.align 4
.globl __curbrk
.hidden __curbrk
__curbrk: .skip 4
.type __curbrk,@object
.size __curbrk,4
#else
.comm __curbrk, 4,4
#endif
.text
.globl brk
.type brk,@function
.align 2
brk:
stwu r1,-16(r1)
stw r3,8(r1)
li 0, __NR_brk;
sc
lwz r6,8(r1)
#ifdef __PIC__
mflr r4
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r5,r5,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
# endif
lwz r5,__curbrk@got(r5)
mtlr r4
stw r3,0(r5)
#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
.size brk,.-brk
libc_hidden_def(brk)
#endif
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