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PATCH: Properly check CPU family and model.
- From: "H.J. Lu" <hongjiu dot lu at intel dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: Ulrich Drepper <drepper at redhat dot com>
- Date: Wed, 26 May 2010 16:15:46 -0700
- Subject: PATCH: Properly check CPU family and model.
- Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>
Hi,
This commit:
http://sourceware.org/git/?p=glibc.git;a=commit;h=22f4f44b6727887957aa1d4039eba290b064da63
breaks CPU family and model check. This patch fixes it.
H.J.
--
2010-05-26 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):
Properly check family and model.
diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c
index efb89b6..f13a9f4 100644
--- a/sysdeps/x86_64/multiarch/init-arch.c
+++ b/sysdeps/x86_64/multiarch/init-arch.c
@@ -62,15 +62,15 @@ __init_cpu_features (void)
unsigned int eax = __cpu_features.cpuid[COMMON_CPUID_INDEX_1].eax;
unsigned int extended_family = (eax >> 20) & 0xff;
unsigned int extended_model = (eax >> 12) & 0xf0;
- if (__cpu_features.family == 0x0f)
+ if (family == 0x0f)
{
family += extended_family;
model += extended_model;
}
- else if (__cpu_features.family == 0x06)
+ else if (family == 0x06)
{
model += extended_model;
- switch (__cpu_features.model)
+ switch (model)
{
case 0x1a:
case 0x1e: