Patch for powerpc syscall updates

[Daniel Jacobowitz <drow at false dot org>]

Well, this patch seems to fix my mmap64 and build problems.

One thing I can not understand - programs still botch mmap64 calls unless
recompiled with this patch applied (botch -> mis-pass the arguments, and it
returns MMAP_FAILED), and I can not see why.  But recompiling against this
works.

Anything wrong with the patch?

Also, in linux/powerpc/syscalls.list, the setrlimit line looks a little
dubious; the rest I've got more or less accounted for now though.

Dan

/--------------------------------\  /--------------------------------\
|       Daniel Jacobowitz        |__|        SCS Class of 2002       |
|   Debian GNU/Linux Developer    __    Carnegie Mellon University   |
|         dan@debian.org         |  |       dmj+@andrew.cmu.edu      |
\--------------------------------/  \--------------------------------/
diff -uNr glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/mmap64.c ../../glibc-2.1.2/glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/mmap64.c
--- glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/mmap64.c	Wed Dec 31 19:00:00 1969
+++ ../../glibc-2.1.2/glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/mmap64.c	Thu Jan 27 13:18:33 2000
@@ -0,0 +1,64 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 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>
+
+#ifdef __NR_mmap2
+extern int __syscall_mmap2(__ptr_t, size_t, int, int, int, off_t);
+static int have_no_mmap2;
+#endif
+
+__ptr_t
+__mmap64 (__ptr_t addr, size_t len, int prot, int flags, int fd, off64_t offset)
+{
+#ifdef __NR_mmap2
+  if (! have_no_mmap2 && ! (offset & 4095))
+    {
+      int saved_errno = errno;
+
+/* FIXME: when mmap2 is implemented, check how it actually expects arguments passed.
+   It may require a nonstandard call stub. */
+
+      /* This will be always 12, no matter what page size is.  */
+      int result = INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags,
+				   fd, (off_t) (offset >> 12));
+
+      if (result != -1 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      have_no_mmap2 = 1;
+    }
+#endif
+  if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
+    {
+      __set_errno (EINVAL);
+      return MAP_FAILED;
+    }
+
+  return __mmap (addr, len, prot, flags, fd, (off_t) offset);
+}
+
+weak_alias (__mmap64, mmap64)
diff -uNr glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/syscalls.list ../../glibc-2.1.2/glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/syscalls.list
--- glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/syscalls.list	Thu Jan 27 22:59:19 2000
+++ ../../glibc-2.1.2/glibc-2.1.2/sysdeps/unix/sysv/linux/powerpc/syscalls.list	Thu Jan 27 13:04:49 2000
@@ -2,22 +2,27 @@
 
 # System calls with wrappers.
 s_ioctl		ioctl	ioctl		3	__syscall_ioctl
-s_ipc		msgget	ipc		5	__syscall_ipc
-s_llseek	llseek	_llseek		5	__syscall__llseek
 s_chown		chown	chown		3	__syscall_chown
-s_execve	execve	execve		3	__syscall_execve
+
+s_llseek	llseek	_llseek		5	__syscall__llseek
+s_ipc		msgget	ipc		5	__syscall_ipc
 rt_sigaction	-	rt_sigaction	4	__syscall_rt_sigaction
 rt_sigpending	-	rt_sigpending	2	__syscall_rt_sigpending
 rt_sigprocmask	-	rt_sigprocmask	4	__syscall_rt_sigprocmask
 rt_sigqueueinfo	-	rt_sigqueueinfo	3	__syscall_rt_sigqueueinfo
 rt_sigsuspend	-	rt_sigsuspend	2	__syscall_rt_sigsuspend
 rt_sigtimedwait	-	rt_sigtimedwait	4	__syscall_rt_sigtimedwait
+s_execve	execve	execve		3	__syscall_execve
+s_fstat64	fxstat64 fstat64	2	__syscall_fstat64
+s_ftruncate64	ftruncate64 ftruncate64	3	__syscall_ftruncate64
 s_getcwd	getcwd	getcwd		2	__syscall_getcwd
 s_getdents	getdents getdents	3	__syscall_getdents
 s_getpriority	getpriority getpriority	2	__syscall_getpriority
 s_getresgid	getresgid getresgid	3	__syscall_getresgid
 s_getresuid	getresuid getresuid	3	__syscall_getresuid
 s_getrlimit	getrlimit getrlimit	2	__syscall_getrlimit
+s_lstat64	lxstat64 lstat64	2	__syscall_lstat64
+s_mmap2		mmap64	mmap2		6	__syscall_mmap2
 s_poll		poll	poll		3	__syscall_poll
 s_pread64	pread64	pread		5	__syscall_pread
 s_ptrace	ptrace	ptrace		4	__syscall_ptrace
@@ -28,7 +33,9 @@
 s_sigpending	sigpending sigpending	1	__syscall_sigpending
 s_sigprocmask	sigprocmask sigprocmask	3	__syscall_sigprocmask
 s_sigsuspend	sigsuspend sigsuspend	3	__syscall_sigsuspend
+s_stat64	xstat64 stat64		2	__syscall_stat64
 s_sysctl	sysctl	_sysctl		1	__syscall__sysctl
+s_truncate64	truncate64 truncate64	3	__syscall_truncate64
 s_ugetrlimit	getrlimit ugetrlimit	2	__syscall_ugetrlimit
 s_ustat		ustat	ustat		2	__syscall_ustat
 s_vfork		vfork	vfork		0	__syscall_vfork