glibc/sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S

44 lines
1.2 KiB
ArmAsm

/* brk system call for Linux. PowerPC64 version.
Copyright (C) 1995-2017 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 <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
.comm __curbrk,8,8
.section ".toc","aw"
.LC__curbrk:
.tc __curbrk[TC],__curbrk
.section ".text"
ENTRY (__brk)
CALL_MCOUNT 1
std r3,-8(r1)
DO_CALL(SYS_ify(brk))
ld r6,-8(r1)
ld r5,.LC__curbrk@toc(r2)
std r3,0(r5)
cmpld r6,r3
li r3,0
blelr+
li r3,ENOMEM
TAIL_CALL_SYSCALL_ERROR
END (__brk)
weak_alias (__brk, brk)