From b62928f9070c6f3c5cc43a4cb89b4bfb950d7406 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Thu, 25 Apr 2024 17:20:28 +0200 Subject: x86: In ld.so, diagnose missing APX support in APX-only builds At this point, this is mainly a tool for testing the early ld.so CPU compatibility diagnostics: GCC uses the new instructions in most functions, so it's easy to spot if some of the early code is not built correctly. Reviewed-by: H.J. Lu --- sysdeps/x86/dl-get-cpu-features.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sysdeps') diff --git a/sysdeps/x86/dl-get-cpu-features.c b/sysdeps/x86/dl-get-cpu-features.c index 4d6c5c59a6..579d02d638 100644 --- a/sysdeps/x86/dl-get-cpu-features.c +++ b/sysdeps/x86/dl-get-cpu-features.c @@ -64,6 +64,11 @@ Fatal glibc error: CPU does not support x86-64-v%d\n", 4); # endif /* ISA level 4 */ # endif /* ISA level 3 */ # endif /* ISA level 2 */ +# ifdef GCCMACRO__APX_F__ + if (!CPU_FEATURE_USABLE_P (cpu_features, APX_F)) + _dl_fatal_printf ("\ +Fatal glibc error: CPU does not support APX\n"); +# endif # endif /* IS_IN (rtld) */ } } -- cgit 1.4.1