Revised mmap64 patch

[Daniel Jacobowitz <drow@false.org>]

The only oddity to this is the extra mmap64 entry in
powerpc/syscalls.list.  That's simply in guard against the time when
it becomes a syscall, to cover for the differences in argument passing
with a 64 bit off_t.

Dan

/--------------------------------\  /--------------------------------\
|       Daniel Jacobowitz        |__|        SCS Class of 2002       |
|   Debian GNU/Linux Developer    __    Carnegie Mellon University   |
|         dan@debian.org         |  |       dmj+@andrew.cmu.edu      |
\--------------------------------/  \--------------------------------/
diff -uNr orig/glibc-2.1.1/sysdeps/unix/sysv/linux/mmap64.c build/glibc-2.1.1/sysdeps/unix/sysv/linux/mmap64.c
--- orig/glibc-2.1.1/sysdeps/unix/sysv/linux/mmap64.c	Sat Nov 14 02:19:41 1998
+++ build/glibc-2.1.1/sysdeps/unix/sysv/linux/mmap64.c	Tue Jun 22 16:22:47 1999
@@ -1,3 +1,45 @@
-/* At least for now mmap64 is the same as mmap on all platforms.
-   When/If the 32 bit platforms get a >32 bit VFS we'll have to
-   change it for these platforms.  */
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
+
+   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 <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include <sys/mman.h>
+
+__ptr_t
+__mmap64 (addr, len, prot, flags, fd, offset)
+     __ptr_t addr;
+     size_t len;
+     int prot;
+     int flags;
+     int fd;
+     off64_t offset;
+{
+  if(offset != (off_t)offset) {
+    errno = EINVAL;
+    return(MAP_FAILED);
+  }
+  
+  return __mmap(addr, len, prot, flags, fd, (off_t)offset);
+}
+
+weak_alias (__mmap64, mmap64)
diff -uNr orig/glibc-2.1.1/sysdeps/unix/sysv/linux/powerpc/syscalls.list build/glibc-2.1.1/sysdeps/unix/sysv/linux/powerpc/syscalls.list
--- orig/glibc-2.1.1/sysdeps/unix/sysv/linux/powerpc/syscalls.list	Wed Jan 13 12:57:10 1999
+++ build/glibc-2.1.1/sysdeps/unix/sysv/linux/powerpc/syscalls.list	Tue Jun 22 16:03:29 1999
@@ -1,5 +1,8 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
+mmap64          -       mmap64          8       __mmap64        mmap64
+mmap            -       mmap            6       __mmap          mmap
+
 # System calls with wrappers.
 s_ioctl		ioctl	ioctl		3	__syscall_ioctl
 s_ipc		msgget	ipc		5	__syscall_ipc
diff -uNr orig/glibc-2.1.1/sysdeps/unix/sysv/linux/syscalls.list build/glibc-2.1.1/sysdeps/unix/sysv/linux/syscalls.list
--- orig/glibc-2.1.1/sysdeps/unix/sysv/linux/syscalls.list	Wed Jan 13 14:24:20 1999
+++ build/glibc-2.1.1/sysdeps/unix/sysv/linux/syscalls.list	Tue Jun 22 15:59:15 1999
@@ -23,7 +23,8 @@
 lchown		-	lchown		3	__lchown	lchown
 mlock		EXTRA	mlock		2	__mlock	mlock
 mlockall	EXTRA	mlockall	1	__mlockall	mlockall
-mmap		-	mmap		6	__mmap		mmap mmap64
+mmap64		-	mmap64		6	__mmap64	mmap64
+mmap		-	mmap		6	__mmap		mmap
 mount		EXTRA	mount		5	__mount	mount
 mremap		EXTRA	mremap		4	__mremap	mremap
 munlock		EXTRA	munlock		2	__munlock	munlock