Rework powerpc to be consistant with the other arches.

 -Erik

1 files changed, 59 insertions, 0 deletions

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 <bits/errno.h>
+#include <sys/syscall.h>
+
+#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