[linux-2.6-block.git] / include / linux / compiler-gcc3.h

#ifndef __LINUX_COMPILER_H
#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
#endif

#if __GNUC_MINOR__ < 2
# error Sorry, your compiler is too old - please upgrade it.
#endif

#if __GNUC_MINOR__ >= 3
# define __used			__attribute__((__used__))
#else
# define __used			__attribute__((__unused__))
#endif

#if __GNUC_MINOR__ >= 4
#define __must_check		__attribute__((warn_unused_result))
#endif

#ifdef CONFIG_GCOV_KERNEL
# if __GNUC_MINOR__ < 4
#   error "GCOV profiling support for gcc versions below 3.4 not included"
# endif /* __GNUC_MINOR__ */
#endif /* CONFIG_GCOV_KERNEL */

/*
 * A trick to suppress uninitialized variable warning without generating any
 * code
 */
#define uninitialized_var(x) x = x

#define __always_inline		inline __attribute__((always_inline))
Commit	Line	Data
	1	#ifndef __LINUX_COMPILER_H
	2	#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
	3	#endif
	4
	5	#if __GNUC_MINOR__ < 2
	6	# error Sorry, your compiler is too old - please upgrade it.
	7	#endif
	8
	9	#if __GNUC_MINOR__ >= 3
	10	# define __used __attribute__((__used__))
	11	#else
	12	# define __used __attribute__((__unused__))
	13	#endif
	14
	15	#if __GNUC_MINOR__ >= 4
	16	#define __must_check __attribute__((warn_unused_result))
	17	#endif
	18
	19	#ifdef CONFIG_GCOV_KERNEL
	20	# if __GNUC_MINOR__ < 4
	21	# error "GCOV profiling support for gcc versions below 3.4 not included"
	22	# endif /* __GNUC_MINOR__ */
	23	#endif /* CONFIG_GCOV_KERNEL */
	24
	25	/*
	26	* A trick to suppress uninitialized variable warning without generating any
	27	* code
	28	*/
	29	#define uninitialized_var(x) x = x
	30
	31	#define __always_inline inline __attribute__((always_inline))