gcc recognizes the format function attribute which tells the compiler to expect the format string to look a certain way and for its arguments to be of appropriate types. This helps to prevent errors like the one that was recently fixed in libpayload's assert. Change-Id: I284ae8bff32f72cfd2d1a250d126c729b38a5730 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/1731 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
		
			
				
	
	
		
			62 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * This file is part of the libpayload project.
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|  *
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|  * Copyright (C) 2008 Advanced Micro Devices, Inc.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions
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|  * are met:
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|  * 1. Redistributions of source code must retain the above copyright
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|  *    notice, this list of conditions and the following disclaimer.
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|  * 2. Redistributions in binary form must reproduce the above copyright
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|  *    notice, this list of conditions and the following disclaimer in the
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|  *    documentation and/or other materials provided with the distribution.
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|  * 3. The name of the author may not be used to endorse or promote products
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|  *    derived from this software without specific prior written permission.
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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|  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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|  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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|  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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|  * SUCH DAMAGE.
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|  */
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| 
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| #ifndef _STDIO_H
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| #define _STDIO_H
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| 
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| #include <stddef.h>
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| 
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| #define EOF (-1)
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| 
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| typedef struct _FILE FILE;
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| 
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| extern FILE *stdout, *stdin, *stderr;
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| 
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| /**
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|  * @defgroup printf Print functions
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|  * @{
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|  */
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| int snprintf(char *str, size_t size, const char *fmt, ...)
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| 	__attribute__ ((format (printf, 3, 4)));
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| int sprintf(char *str, const char *fmt, ...)
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| 	__attribute__ ((format (printf, 2, 3)));
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| int printf(const char *fmt, ...)
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| 	__attribute__ ((format (printf, 1, 2)));
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| int fprintf(FILE *file, const char *fmt, ...)
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| 	__attribute__ ((format (printf, 2, 3)));
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| /** @} */
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| 
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| void perror(const char *s);
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| 
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| #define SEEK_SET 0 /**< The seek offset is absolute. */
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| #define SEEK_CUR 1 /**< The seek offset is against the current position. */
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| #define SEEK_END 2 /**< The seek offset is against the end of the file. */
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| 
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| #endif
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