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*: make "pragma GCC visibility push(hidden)" less ugly

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This commit is contained in:
Denis Vlasenko
2009-04-09 12:35:13 +00:00
parent 327fd47f36
commit f81e8dbc74
43 changed files with 158 additions and 266 deletions
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16
include/platform.h
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@@ -4,8 +4,8 @@
Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#ifndef __PLATFORM_H
#define __PLATFORM_H 1
#ifndef BB_PLATFORM_H
#define BB_PLATFORM_H 1
/* Convenience macros to test the version of gcc. */
#undef __GNUC_PREREQ
@@ -110,6 +110,16 @@
# define FAST_FUNC
#endif
/* Make all declarations hidden (-fvisibility flag only affects definitions) */
/* (don't include system headers after this until corresponding pop!) */
#if __GNUC_PREREQ(4,1)
# define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN _Pragma("GCC visibility push(hidden)")
# define POP_SAVED_FUNCTION_VISIBILITY _Pragma("GCC visibility pop")
#else
# define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
# define POP_SAVED_FUNCTION_VISIBILITY
#endif
/* ---- Endian Detection ------------------------------------ */
#if (defined __digital__ && defined __unix__)
@@ -371,4 +381,4 @@ static ALWAYS_INLINE char* strchrnul(const char *s, char c)
#endif
#endif
#endif /* platform.h */
#endif