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| author | Jia Tan <jiat0218@gmail.com> | 2023-07-19 23:36:00 +0800 |
|---|---|---|
| committer | Jia Tan <jiat0218@gmail.com> | 2023-07-19 23:36:00 +0800 |
| commit | 0184d344fa4f215cd345bb131db9068e077c69b8 (patch) | |
| tree | 3059aa7744214e4a51dce1bca450a20446f731fc /src | |
| parent | liblzma: Reword lzma_str_list_filters() documentation. (diff) | |
| download | xz-0184d344fa4f215cd345bb131db9068e077c69b8.tar.xz | |
liblzma: Suppress -Wunused-function warning.
Clang 16.0.0 and earlier have a bug that the ifunc resolver function
triggers the -Wunused-function warning. The resolver function is static
and only "used" by the __attribute__((__ifunc()__)).
At this time, the bug is still unresolved, but has been reported:
https://github.com/llvm/llvm-project/issues/63957
This is not a problem in GCC.
Diffstat (limited to 'src')
| -rw-r--r-- | src/liblzma/check/crc64_fast.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/liblzma/check/crc64_fast.c b/src/liblzma/check/crc64_fast.c index e2d4ec3c..f6e872ed 100644 --- a/src/liblzma/check/crc64_fast.c +++ b/src/liblzma/check/crc64_fast.c @@ -441,6 +441,13 @@ is_clmul_supported(void) typedef uint64_t (*crc64_func_type)( const uint8_t *buf, size_t size, uint64_t crc); +// Clang 16.0.0 and older has a bug where it marks the ifunc resolver +// function as unused since it is static and never used outside of +// __attribute__((__ifunc__())). +#if defined(HAVE_FUNC_ATTRIBUTE_IFUNC) && defined(__clang__) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wunused-function" +#endif static crc64_func_type crc64_resolve(void) @@ -448,6 +455,9 @@ crc64_resolve(void) return is_clmul_supported() ? &crc64_clmul : &crc64_generic; } +#if defined(HAVE_FUNC_ATTRIBUTE_IFUNC) && defined(__clang__) +# pragma GCC diagnostic pop +#endif #ifndef HAVE_FUNC_ATTRIBUTE_IFUNC |