diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2025-02-26 12:44:52 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-03-03 20:00:13 +0100 |
| commit | 032e871686483ec1bac27ce73e7094692fc76268 (patch) | |
| tree | b8d576f4a99ebdc0416c4f400af4938e066c6ce6 | |
| parent | c9fbaa879508ea36f5be0b3f1125b8f9f11b4945 (diff) | |
selftests: vDSO: parse_vdso: Test __SIZEOF_LONG__ instead of ULONG_MAX
According to limits.h(2) ULONG_MAX is only guaranteed to expand to an
expression, not a symbolic constant which can be evaluated by the
preprocessor.
Specifically the definition of ULONG_MAX from nolibc can not be evaluated
by the preprocessor. To provide compatibility with nolibc, check with
__SIZEOF_LONG__ instead, with is provided directly by the preprocessor
and therefore always a symbolic constant.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/all/20250226-parse_vdso-nolibc-v2-13-28e14e031ed8@linutronix.de
| -rw-r--r-- | tools/testing/selftests/vDSO/parse_vdso.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c index 200c534cc70e..902b8f9984a1 100644 --- a/tools/testing/selftests/vDSO/parse_vdso.c +++ b/tools/testing/selftests/vDSO/parse_vdso.c @@ -26,7 +26,7 @@ /* And here's the code. */ #ifndef ELF_BITS -# if ULONG_MAX > 0xffffffffUL +# if __SIZEOF_LONG__ >= 8 # define ELF_BITS 64 # else # define ELF_BITS 32 |