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| author | Jia Tan <jiat0218@gmail.com> | 2024-03-05 00:34:46 +0800 |
|---|---|---|
| committer | Jia Tan <jiat0218@gmail.com> | 2024-03-05 00:34:46 +0800 |
| commit | 4e1c97052b5f14f4d6dda99d12cbbd01e66e3712 (patch) | |
| tree | cd28d0c0d5fb472596adaff9f36ed9686124ef38 /src | |
| parent | Build: Require attribute no_profile_instrument_function for ifunc usage. (diff) | |
| download | xz-4e1c97052b5f14f4d6dda99d12cbbd01e66e3712.tar.xz | |
liblzma: Use attribute no_profile_instrument_function with ifunc.
Thanks to Sam James for determining this was the attribute needed to
workaround the GCC bug and for his version of the patch in Gentoo.
Diffstat (limited to 'src')
| -rw-r--r-- | src/liblzma/check/crc32_fast.c | 5 | ||||
| -rw-r--r-- | src/liblzma/check/crc64_fast.c | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/liblzma/check/crc32_fast.c b/src/liblzma/check/crc32_fast.c index 5e26914a..079051f1 100644 --- a/src/liblzma/check/crc32_fast.c +++ b/src/liblzma/check/crc32_fast.c @@ -135,6 +135,11 @@ typedef uint32_t (*crc32_func_type)( // This resolver is shared between all three dispatch methods. It serves as // the ifunc resolver if ifunc is supported, otherwise it is called as a // regular function by the constructor or first call resolution methods. +// The __no_profile_instrument_function__ attribute support is checked when +// determining if ifunc can be used, so it is safe to use here. +#ifdef CRC_USE_IFUNC +__attribute__((__no_profile_instrument_function__)) +#endif static crc32_func_type crc32_resolve(void) { diff --git a/src/liblzma/check/crc64_fast.c b/src/liblzma/check/crc64_fast.c index f29fe3d3..5728b45e 100644 --- a/src/liblzma/check/crc64_fast.c +++ b/src/liblzma/check/crc64_fast.c @@ -98,6 +98,9 @@ typedef uint64_t (*crc64_func_type)( # pragma GCC diagnostic ignored "-Wunused-function" #endif +#ifdef CRC_USE_IFUNC +__attribute__((__no_profile_instrument_function__)) +#endif static crc64_func_type crc64_resolve(void) { |