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| author | Hisam Mehboob <hisamshar@gmail.com> | 2026-06-19 00:37:25 +0500 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-07-03 00:15:01 +0200 |
| commit | d7b2769f8dba3e5f40d2a8a11988812d51160b17 (patch) | |
| tree | 169f9d3e06700890371f25ba6eead39f6a4eb209 /tools/testing/selftests/rseq | |
| parent | dc59e4fea9d83f03bad6bddf3fa2e52491777482 (diff) | |
| download | linux-d7b2769f8dba3e5f40d2a8a11988812d51160b17.tar.gz linux-d7b2769f8dba3e5f40d2a8a11988812d51160b17.zip | |
selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check
Building the rseq selftests against musl libc fails because musl's
<features.h> does not provide the glibc-specific __GNUC_PREREQ macro:
error: missing binary operator before token '('
Replace __GNUC_PREREQ(11, 1) with an equivalent check using __GNUC__
and __GNUC_MINOR__ directly. This pattern is portable across all C
library implementations and is already used elsewhere in the tools/
tree (e.g., tools/include/linux/string.h).
This also allows removing the #include <features.h>, which was only
needed for __GNUC_PREREQ.
Fixes: 886ddfba933f ("selftests/rseq: Introduce thread pointer getters")
Signed-off-by: Hisam Mehboob <hisamshar@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260618193724.589113-2-hisamshar@gmail.com
Diffstat (limited to 'tools/testing/selftests/rseq')
| -rw-r--r-- | tools/testing/selftests/rseq/rseq-x86-thread-pointer.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h b/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h index d3133587d996..5a29d6bec51f 100644 --- a/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h +++ b/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h @@ -8,13 +8,11 @@ #ifndef _RSEQ_X86_THREAD_POINTER #define _RSEQ_X86_THREAD_POINTER -#include <features.h> - #ifdef __cplusplus extern "C" { #endif -#if __GNUC_PREREQ (11, 1) +#if __GNUC__ > 11 || (__GNUC__ == 11 && __GNUC_MINOR__ >= 1) static inline void *rseq_thread_pointer(void) { return __builtin_thread_pointer(); |