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update to glibc-2.28-151.el8.src.rpm

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Signed-off-by: Liwei Ge <geliwei@openanolis.org>
This commit is contained in:
Liwei Ge 2021-06-16 16:09:23 +08:00
parent ba6a26df65
commit 37da1d0798
284 changed files with 62546 additions and 13 deletions
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51
glibc-rh1817513-71.patch Normal file
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@ -0,0 +1,51 @@
commit 28c13ae5bbc81aa2ae67890ce53e65257d4703a4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Jul 6 06:57:08 2020 -0700
x86: Detect Extended Feature Disable (XFD)
An extension called extended feature disable (XFD) is an extension added
for Intel AMX to the XSAVE feature set that allows an operating system
to enable a feature while preventing specific user threads from using
the feature.
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h
index 535b3cb2d25b245b..e7ea9e8ece3e8211 100644
--- a/sysdeps/x86/cpu-features.h
+++ b/sysdeps/x86/cpu-features.h
@@ -393,6 +393,7 @@ extern const struct cpu_features *__get_cpu_features (void)
#define bit_cpu_XSAVEC (1u << 1)
#define bit_cpu_XGETBV_ECX_1 (1u << 2)
#define bit_cpu_XSAVES (1u << 3)
+#define bit_cpu_XFD (1u << 4)
/* COMMON_CPUID_INDEX_80000007. */
@@ -578,6 +579,7 @@ extern const struct cpu_features *__get_cpu_features (void)
#define index_cpu_XSAVEC COMMON_CPUID_INDEX_D_ECX_1
#define index_cpu_XGETBV_ECX_1 COMMON_CPUID_INDEX_D_ECX_1
#define index_cpu_XSAVES COMMON_CPUID_INDEX_D_ECX_1
+#define index_cpu_XFD COMMON_CPUID_INDEX_D_ECX_1
/* COMMON_CPUID_INDEX_80000007. */
@@ -763,6 +765,7 @@ extern const struct cpu_features *__get_cpu_features (void)
#define reg_XSAVEC eax
#define reg_XGETBV_ECX_1 eax
#define reg_XSAVES eax
+#define reg_XFD eax
/* COMMON_CPUID_INDEX_80000007. */
diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index c4d91be3a48de886..c56f309ba0736c0d 100644
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -212,6 +212,7 @@ do_test (void)
CHECK_CPU_FEATURE (XSAVEC);
CHECK_CPU_FEATURE (XGETBV_ECX_1);
CHECK_CPU_FEATURE (XSAVES);
+ CHECK_CPU_FEATURE (XFD);
CHECK_CPU_FEATURE (INVARIANT_TSC);
CHECK_CPU_FEATURE (WBNOINVD);
CHECK_CPU_FEATURE (AVX512_BF16);