mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 19:00:07 +00:00
58 lines
1.6 KiB
ArmAsm
58 lines
1.6 KiB
ArmAsm
/* 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
|
|
bcl 20,31,1f
|
|
1: mflr r5
|
|
addis r5,r5,__curbrk-1b@ha
|
|
stw r3,__curbrk-1b@l(r5)
|
|
#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))
|