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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>
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1 changed files with 12 additions and 1 deletions
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@ -1,11 +1,13 @@
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/*
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* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
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* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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* Licensed under the GPL
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*/
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#ifndef __USER_H__
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#define __USER_H__
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#include "uml-config.h"
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/*
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* The usual definition - copied here because the kernel provides its own,
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* fancier, type-safe, definition. Using that one would require
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@ -23,8 +25,17 @@
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extern void panic(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)));
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#ifdef UML_CONFIG_PRINTK
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extern int printk(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)));
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#else
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static inline int printk(const char *fmt, ...)
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{
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return 0;
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}
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#endif
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extern void schedule(void);
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extern int in_aton(char *str);
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extern int open_gdb_chan(void);
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