mmap syscall interface for Linux/ARM.

1 files changed, 39 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/arm/mmap.S b/sysdeps/unix/sysv/linux/arm/mmap.S
new file mode 100644
index 0000000000..905303e8e3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/mmap.S
@@ -0,0 +1,39 @@
+/* Copyright (C) 1998 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>
+
+	.text
+
+ENTRY (__mmap)
+
+	/* Because we can only get five args through the syscall interface, and
+	   mmap() takes six, we need to build a parameter block and pass its	
+	   address instead.  The 386 port does a similar trick.  */
+
+	mov	ip, sp
+	stmdb	ip!, {a1-a4}
+	mov	a1, ip
+	swi	SYS_ify (mmap)
+	cmn	r0, $4096
+	bhs	PLTJMP(syscall_error);
+	ret
+
+PSEUDO_END (__mmap)
+
+weak_alias (__mmap, mmap)