From 330eb7bad0aeb0f95a12eb77791bdb4b828249d4 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 4 Feb 2002 12:34:00 +0000 Subject: Rework powerpc to be consistant with the other arches. -Erik --- libc/sysdeps/linux/powerpc/brk.S | 59 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libc/sysdeps/linux/powerpc/brk.S (limited to 'libc/sysdeps/linux/powerpc/brk.S') diff --git a/libc/sysdeps/linux/powerpc/brk.S b/libc/sysdeps/linux/powerpc/brk.S new file mode 100644 index 000000000..57a8fb838 --- /dev/null +++ b/libc/sysdeps/linux/powerpc/brk.S @@ -0,0 +1,59 @@ +/* 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 "ppc_asm.h" +#define _ERRNO_H 1 +#include +#include + +#ifdef __NR_brk + .comm ___brk_addr,4,4 + .section ".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 + bl _GLOBAL_OFFSET_TABLE_@local-4 + mflr r5 + lwz r5,___brk_addr@got(r5) + mtlr r4 + stw r3,0(r5) +#else + lis r4,___brk_addr@ha + stw r3,___brk_addr@l(r4) +#endif + cmplw r6,r3 + addi r1,r1,16 + li r3,0 + blelr+ + li r3,ENOMEM + b __syscall_error +.size __brk,.-__brk + +.weak brk; +brk=__brk +#endif -- cgit v1.2.3