trunk/src/hidden-visibility.h

/*
 * hidden-visibility.h
 * Create hidden internal aliases so we dont have wasteful relocs.
 * Copyright 2007 Gentoo Foundation
 * Released under the GPLv2
 */

#ifndef _HIDDEN_VISIBILITY_H_
#define _HIDDEN_VISIBILITY_H_

#if defined(__ELF__) && defined(__GNUC__)
# define __hidden_asmname(name) __hidden_asmname1 (__USER_LABEL_PREFIX__, name)
# define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name)
# define __hidden_asmname2(prefix, name) #prefix name
# define __hidden_proto(name, internal) \
        extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \
        __attribute__ ((visibility ("hidden")));
# define __hidden_ver(local, internal, name) \
   extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \
   extern __typeof (name) __EI_##name __attribute__((alias (__hidden_asmname1 (,#local))))
# define hidden_proto(name) __hidden_proto(name, __RC_##name)
# define hidden_def(name) __hidden_ver(__RC_##name, name, name);
#else
# define hidden_proto(name)
# define hidden_def(name)
#endif

#endif
1	/*
2	* hidden-visibility.h
3	* Create hidden internal aliases so we dont have wasteful relocs.
4	* Copyright 2007 Gentoo Foundation
5	* Released under the GPLv2
6	*/
7
8	#ifndef _HIDDEN_VISIBILITY_H_
9	#define _HIDDEN_VISIBILITY_H_
10
11	#if defined(__ELF__) && defined(__GNUC__)
12	# define __hidden_asmname(name) __hidden_asmname1 (__USER_LABEL_PREFIX__, name)
13	# define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name)
14	# define __hidden_asmname2(prefix, name) #prefix name
15	# define __hidden_proto(name, internal) \
16	extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \
17	__attribute__ ((visibility ("hidden")));
18	# define __hidden_ver(local, internal, name) \
19	extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \
20	extern __typeof (name) __EI_##name __attribute__((alias (__hidden_asmname1 (,#local))))
21	# define hidden_proto(name) __hidden_proto(name, __RC_##name)
22	# define hidden_def(name) __hidden_ver(__RC_##name, name, name);
23	#else
24	# define hidden_proto(name)
25	# define hidden_def(name)
26	#endif
27
28	#endif