diff options
Diffstat (limited to 'sysdeps/x86/cpu-tunables.c')
| -rw-r--r-- | sysdeps/x86/cpu-tunables.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sysdeps/x86/cpu-tunables.c b/sysdeps/x86/cpu-tunables.c index 142c6b9..1742400 100644 --- a/sysdeps/x86/cpu-tunables.c +++ b/sysdeps/x86/cpu-tunables.c @@ -35,6 +35,17 @@ break; \ } +#define CHECK_GLIBC_IFUNC_CPU_BOTH(f, cpu_features, name, len) \ + _Static_assert (sizeof (#name) - 1 == len, #name " != " #len); \ + if (tunable_str_comma_strcmp_cte (&f, #name)) \ + { \ + if (f.disable) \ + CPU_FEATURE_UNSET (cpu_features, name) \ + else \ + CPU_FEATURE_SET_ACTIVE (cpu_features, name) \ + break; \ + } + /* Disable a preferred feature NAME. We don't enable a preferred feature which isn't available. */ #define CHECK_GLIBC_IFUNC_PREFERRED_OFF(f, cpu_features, name, len) \ @@ -131,11 +142,13 @@ TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *valp) } break; case 5: + { + CHECK_GLIBC_IFUNC_CPU_BOTH (n, cpu_features, SHSTK, 5); + } if (n.disable) { CHECK_GLIBC_IFUNC_CPU_OFF (n, cpu_features, LZCNT, 5); CHECK_GLIBC_IFUNC_CPU_OFF (n, cpu_features, MOVBE, 5); - CHECK_GLIBC_IFUNC_CPU_OFF (n, cpu_features, SHSTK, 5); CHECK_GLIBC_IFUNC_CPU_OFF (n, cpu_features, SSSE3, 5); CHECK_GLIBC_IFUNC_CPU_OFF (n, cpu_features, XSAVE, 5); } |