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| author | Henrik Gramner <gramner@twoorioles.com> | 2022-09-30 01:11:29 +0300 |
|---|---|---|
| committer | Henrik Gramner <gramner@twoorioles.com> | 2022-09-30 18:04:20 +0300 |
| commit | e4c4af02f3de5e6cea6f81272a2981c0fa7bae28 (patch) | |
| tree | af7c69678a43322235e3abd85fd9cd6433690126 /include | |
| parent | 58c856b76ad423efe59a518b5f02752354e0d0d8 (diff) | |
Specify hidden visibility for global data symbol declarations
'-fvisibility=hidden' only applies to definitions, not declarations,
so the compiler has to be conservative about how references to global
data symbols are performed.
Explicitly specifying the visibility allows for better code generation.
Diffstat (limited to 'include')
| -rw-r--r-- | include/common/attributes.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/common/attributes.h b/include/common/attributes.h index ba04fcb..2af42ef 100644 --- a/include/common/attributes.h +++ b/include/common/attributes.h @@ -113,6 +113,12 @@ #define ALWAYS_INLINE __attribute__((always_inline)) inline #endif +#if (defined(__ELF__) || defined(__MACH__) || (defined(_WIN32) && defined(__clang__))) && __has_attribute(visibility) +#define EXTERN extern __attribute__((visibility("hidden"))) +#else +#define EXTERN extern +#endif + #ifdef __clang__ #define NO_SANITIZE(x) __attribute__((no_sanitize(x))) #else |