[PATCH] UML - Allow vsyscall code to build on 2.4

[Jeff Dike]

From: Bodo Stroesser <bstroesser@xxxxxxxxxxxxxxxxxxx>

This patch fixes compilation on 2.4 hosts by not relying on macros from 2.6
host kernel headers in one userspace file. It's about AT_SYSINFO_* macros.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@xxxxxxxx>
Signed-off-by: Jeff Dike <jdike@xxxxxxxxxxx>

diff -puN /dev/null arch/um/include/elf_user.h
--- /dev/null	2004-06-30 21:04:37.000000000 +0200
+++ linux-2.6.10-rc2-root/arch/um/include/elf_user.h	2004-11-25 17:33:23.559706592 +0100
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
+ * Author: Bodo Stroesser <bstroesser@xxxxxxxxxxxxxxxxxxx>
+ * Licensed under the GPL
+ */
+
+#ifndef __ELF_USER_H__
+#define __ELF_USER_H__
+
+/* For compilation on a host that doesn't support AT_SYSINFO (Linux 2.4)  */
+
+#ifndef AT_SYSINFO
+#define AT_SYSINFO 32
+#endif
+#ifndef AT_SYSINFO_EHDR
+#define AT_SYSINFO_EHDR 33
+#endif
+
+#endif
diff -puN arch/um/os-Linux/elf_aux.c~compile-elf_aux arch/um/os-Linux/elf_aux.c
--- linux-2.6.10-rc2/arch/um/os-Linux/elf_aux.c~compile-elf_aux	2004-11-25 17:33:23.555707903 +0100
+++ linux-2.6.10-rc2-root/arch/um/os-Linux/elf_aux.c	2004-11-25 17:33:23.559706592 +0100
@@ -10,6 +10,7 @@
 #include <elf.h>
 #include <stddef.h>
 #include "init.h"
+#include "elf_user.h"
 
 #if ELF_CLASS == ELFCLASS32
 typedef Elf32_auxv_t elf_auxv_t;
_

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