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uml: fix build for !CONFIG_PRINTK 

Handle the case of CONFIG_PRINTK being disabled.  This requires a do-nothing
stub to be present in arch/um/include/user.h so that we don't get references
to printk from libc code.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-11-14 17:00:31 -08:00 committed by Linus Torvalds
parent 32f862c310
commit 9c8d6381dc
1 changed files with 12 additions and 1 deletions
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13
arch/um/include/user.h
View File

@ -1,11 +1,13 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __USER_H__
#define __USER_H__
#include "uml-config.h"
/*
* The usual definition - copied here because the kernel provides its own,
* fancier, type-safe, definition. Using that one would require
@ -23,8 +25,17 @@
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#ifdef UML_CONFIG_PRINTK
extern int printk(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#else
static inline int printk(const char *fmt, ...)
{
return 0;
}
#endif
extern void schedule(void);
extern int in_aton(char *str);
extern int open_gdb_chan(void);