linux-kernel - UML compile problems on -mm

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Message-Id: <E1GnXeZ-00052H-00@dorka.pomaz.szeredi.hu>
Date:	Fri, 24 Nov 2006 10:47:27 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	jdike@...toit.com
CC:	akpm@...l.org, linux-kernel@...r.kernel.org
Subject: UML compile problems on -mm

Having problems compiling UML on 2.6.19-rc6-mm1:

  CC      arch/um/os-Linux/skas/process.o
arch/um/os-Linux/skas/process.c:538:2: warning: #warning need cpu pid in switch_mm_skas
arch/um/os-Linux/skas/process.c: In function ‘copy_context_skas0’:
arch/um/os-Linux/skas/process.c:342: error: ‘PAGE_SHIFT’ undeclared (first use in this function)
arch/um/os-Linux/skas/process.c:342: error: (Each undeclared identifier is reported only once
arch/um/os-Linux/skas/process.c:342: error: for each function it appears in.)
make[2]: *** [arch/um/os-Linux/skas/process.o] Error 1

After applying this patch:

Index: linux/arch/um/include/sysdep-i386/stub.h
===================================================================
--- linux.orig/arch/um/include/sysdep-i386/stub.h	2006-11-23 13:51:54.000000000 +0100
+++ linux/arch/um/include/sysdep-i386/stub.h	2006-11-23 13:52:10.000000000 +0100
@@ -9,6 +9,7 @@
 #include <sys/mman.h>
 #include <asm/ptrace.h>
 #include <asm/unistd.h>
+#include <asm/page.h>
 #include "stub-data.h"
 #include "kern_constants.h"
 #include "uml-config.h"

it still fails on linking:

  LD      .tmp_vmlinux1
lib/lib.a(bug.o): In function `find_bug':
lib/bug.c:108: undefined reference to `__start___bug_table'
lib/bug.c:108: undefined reference to `__stop___bug_table'
lib/bug.c:109: undefined reference to `__start___bug_table'
lib/bug.c:109: undefined reference to `__start___bug_table'
lib/bug.c:108: undefined reference to `__stop___bug_table'
collect2: ld returned 1 exit status

Miklos
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