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Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/brk.S')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/brk.S49
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/brk.S b/sysdeps/unix/sysv/linux/powerpc/brk.S
new file mode 100644
index 0000000000..f4a3f3bcec
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/brk.S
@@ -0,0 +1,49 @@
+/* brk system call for Linux/ppc.
+ Copyright (C) 1995, 1996, 1997 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+ .comm __curbrk,4,4
+ .section ".text"
+ENTRY(__brk)
+ stwu %r1,-16(%r1)
+ stw %r3,8(%r1)
+ DO_CALL(SYS_ify(brk))
+ lwz %r6,8(%r1)
+#ifdef PIC
+ mflr %r4
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr %r5
+ lwz %r5,__curbrk@got(%r5)
+ mtlr %r4
+ stw %r3,0(%r5)
+#else
+ stw %r3,__curbrk@sdarel(%r13)
+#endif
+ cmplw %r6,%r3
+ addi %r1,%r1,16
+ li %r3,0
+ blelr+
+ li %r3,ENOMEM
+ b JUMPTARGET(__syscall_error)
+END (__brk)
+
+weak_alias (__brk, brk)