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author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-10-03 16:22:55 +0200 |
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committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-10-10 13:43:59 +0200 |
commit | a60befce40572d5867e603a71ff274db797b0532 (patch) | |
tree | 80097360445e225f0ffe56426ff7020baf15058d | |
parent | f3b5277057ad84071721f01419fe4badeceaff08 (diff) | |
download | ffmpeg-a60befce40572d5867e603a71ff274db797b0532.tar.gz |
avutil/attributes_internal: Add visibility pragma
GCC 4.0 not only added a visibility attribute, but also
a pragma to set it for a whole region of code.*
This commit exposes this via macros.
*: See https://gcc.gnu.org/gcc-4.0/changes.html
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
-rw-r--r-- | libavutil/attributes_internal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavutil/attributes_internal.h b/libavutil/attributes_internal.h index 9d3d10b63e..3df1ee6af3 100644 --- a/libavutil/attributes_internal.h +++ b/libavutil/attributes_internal.h @@ -23,8 +23,12 @@ #if (AV_GCC_VERSION_AT_LEAST(4,0) || defined(__clang__)) && (defined(__ELF__) || defined(__MACH__)) # define attribute_visibility_hidden __attribute__((visibility("hidden"))) +# define FF_VISIBILITY_PUSH_HIDDEN _Pragma("GCC visibility push(hidden)") +# define FF_VISIBILITY_POP_HIDDEN _Pragma("GCC visibility pop") #else # define attribute_visibility_hidden +# define FF_VISIBILITY_PUSH_HIDDEN +# define FF_VISIBILITY_POP_HIDDEN #endif #endif /* AVUTIL_ATTRIBUTES_INTERNAL_H */ |