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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-18 16:27:11 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-18 16:27:11 -0300 |
| commit | dd727ee173ba60b492a1105693d11cf05c087276 (patch) | |
| tree | 43070af0606fc63eae5b6ffbc3af0bf0b2abf449 | |
| parent | 5a3b7503e46f7d8e5286dc88d479ec493bd8da4b (diff) | |
| download | glibc-azanella/clang.zip glibc-azanella/clang.tar.gz glibc-azanella/clang.tar.bz2 | |
x86: Fix bsearch for compiler that do not define __USE_EXTERN_INLINESazanella/clang
The bsearch is called early during process initialization on Intel
platform, before TCB has been set up; and if compiler does not
enable __extern_inline it might call the symbol which might use an
invalid thread-pointer.
Expand the bsearch implementation from stdlib-bsearch.h with a
different name.
Checked on x86_64-linux-gnu with Intel chip.
| -rw-r--r-- | sysdeps/x86/dl-cacheinfo.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h index 5a98f70..1943dc7 100644 --- a/sysdeps/x86/dl-cacheinfo.h +++ b/sysdeps/x86/dl-cacheinfo.h @@ -98,6 +98,12 @@ static const struct intel_02_cache_info #define nintel_02_known (sizeof (intel_02_known) / sizeof (intel_02_known [0])) +/* The bsearch is called early during process initialization, before TCB has + been set up; and if compiler does not enable __extern_inline it might call + the symbol which might use an invalid thread-pointer. */ +#define bsearch bsearch_inline +#include <bits/stdlib-bsearch.h> + static int intel_02_known_compare (const void *p1, const void *p2) { @@ -214,8 +220,8 @@ intel_check_word (int name, unsigned int value, bool *has_level_2, struct intel_02_cache_info search; search.idx = byte; - found = bsearch (&search, intel_02_known, nintel_02_known, - sizeof (intel_02_known[0]), intel_02_known_compare); + found = bsearch_inline (&search, intel_02_known, nintel_02_known, + sizeof (intel_02_known[0]), intel_02_known_compare); if (found != NULL) { if (found->rel_name == folded_rel_name) |