[PATCH] Fix IPC for PPC (maybe needed for mips and sparc64 too?)

[Franz Sirl <Franz dot Sirl-kernel at lauterbach dot com>]

Hi,

I finally found the reason why some X apps (namely gdm and the gtk+ tree 
example) had problems on Linux/PPC, glibc was treating PPC as a 16bit 
uid_t/gid_t/etc. platform, but this was never the case on PPC, we had 32bit 
from the beginning. The attached patch fixes it. Mips and sparc64 may need 
similar fixes.

Franz.

	* sysdeps/unix/sysv/linux/kernel-features.h: Always define
	__ASSUME_32BITUIDS for __powerpc__.
	* sysdeps/unix/sysv/linux/powerpc/ipc_priv.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/Dist: Add ipc_priv.h.

? sysdeps/unix/sysv/linux/powerpc/ipc_priv.h
Index: sysdeps/unix/sysv/linux/kernel-features.h
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/kernel-features.h,v
retrieving revision 1.18
diff -u -p -r1.18 kernel-features.h
--- sysdeps/unix/sysv/linux/kernel-features.h	2000/09/07 06:19:21	1.18
+++ sysdeps/unix/sysv/linux/kernel-features.h	2000/09/17 20:06:07
@@ -111,7 +111,7 @@
 #endif
 
 /* Linux 2.3.39 introduced 32bit UID/GIDs.  */
-#if __LINUX_KERNEL_VERSION >= 131879
+#if __LINUX_KERNEL_VERSION >= 131879 || defined __powerpc__
 # define __ASSUME_32BITUIDS		1
 # ifdef __sparc__
 #  define __ASSUME_SETRESUID_SYSCALL	1
Index: sysdeps/unix/sysv/linux/powerpc/Dist
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/powerpc/Dist,v
retrieving revision 1.12
diff -u -p -r1.12 Dist
--- sysdeps/unix/sysv/linux/powerpc/Dist	2000/08/31 23:33:07	1.12
+++ sysdeps/unix/sysv/linux/powerpc/Dist	2000/09/17 20:06:09
@@ -1,5 +1,6 @@
 clone.S
 fe_nomask.c
+ipc_priv.h
 kernel_stat.h
 kernel_termios.h
 oldgetrlimit64.c
--- /dev/null	Tue May  5 22:32:27 1998
+++ sysdeps/unix/sysv/linux/powerpc/ipc_priv.h	Sun Sep 17 16:26:07 2000
@@ -0,0 +1,54 @@
+/* Copyright (C) 1995-1999, 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 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 <sys/ipc.h>
+
+#define __IPC_64	0x100
+
+struct __old_ipc_perm
+{
+  __key_t __key;			/* Key.  */
+  unsigned int uid;			/* Owner's user ID.  */
+  unsigned int gid;			/* Owner's group ID.  */
+  unsigned int cuid;			/* Creator's user ID.  */
+  unsigned int cgid;			/* Creator's group ID.  */
+  unsigned int mode;			/* Read/write permission.  */
+  unsigned short int __seq;		/* Sequence number.  */
+};
+
+
+__BEGIN_DECLS
+
+/* The actual system call: all functions are multiplexed by this.  */
+extern int __syscall_ipc (int __call, int __first, int __second,
+			  int __third, void *__ptr);
+
+__END_DECLS
+
+/* The codes for the functions to use the multiplexer `__syscall_ipc'.  */
+#define IPCOP_semop	 1
+#define IPCOP_semget	 2
+#define IPCOP_semctl	 3
+#define IPCOP_msgsnd	11
+#define IPCOP_msgrcv	12
+#define IPCOP_msgget	13
+#define IPCOP_msgctl	14
+#define IPCOP_shmat	21
+#define IPCOP_shmdt	22
+#define IPCOP_shmget	23
+#define IPCOP_shmctl	24