AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-27 07:20:11 +00:00
Code Issues Packages Projects Releases Wiki Activity
a546baa9cd
glibc/sysdeps/x86_64
History
H.J. Lu a546baa9cd Properly count number of logical processors on Intel CPUs. 
The meaning of the 25-14 bits in EAX returned from cpuid with EAX = 4
has been changed from "the maximum number of threads sharing the cache"
to "the maximum number of addressable IDs for logical processors sharing
the cache" if cpuid takes EAX = 11.  We need to use results from both
EAX = 4 and EAX = 11 to get the number of threads sharing the cache.

The 25-14 bits in EAX on Core i7 is 15 although the number of logical
processors is 8.  Here is a white paper on this:

http://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration/

This patch correctly counts number of logical processors on Intel CPUs
with EAX = 11 support on cpuid.  Tested on Dinnington, Core i7 and
Nehalem EX/EP.

It also fixed Pentium Ds workaround since EBX may not have the right
value returned from cpuid with EAX = 1.
2009-08-07 09:39:36 -07:00
..
bits Add AVX support to ld.so auditing for x86-64. 2009-07-10 12:04:14 -07:00
elf Add AVX support to ld.so auditing for x86-64. 2009-07-10 12:04:14 -07:00
fpu * sysdeps/ieee754/dbl-64/s_expm1.c: Set errno for overflow. 2009-04-27 05:31:37 +00:00
multiarch Add x86 32-bit SSE4.2 string functions. 2009-08-04 12:13:43 -07:00
____longjmp_chk.S ____longjmp_chk is now OS-specific. 2009-07-30 21:42:27 -07:00
__longjmp.S Fix x86-64 ____longjmp_chk to handle signal stacks. 2009-07-30 17:31:48 -07:00
_mcount.S Add space inf weak_alias use. 2005-05-26 14:30:51 +00:00
abort-instr.h
add_n.S mpn_add_n for x86-64. 2009-04-14 22:24:59 +00:00
addmul_1.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
backtrace.c
bp-asm.h
bsd-_setjmp.S * sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally 2005-03-31 10:02:53 +00:00
bsd-setjmp.S * sysdeps/x86_64/bsd-setjmp.S [PIC] (setjmp): Add missing jmp. 2005-12-17 22:48:36 +00:00
bzero.S Make an empty file. 2007-10-16 05:59:15 +00:00
cacheinfo.c Properly count number of logical processors on Intel CPUs. 2009-08-07 09:39:36 -07:00
configure 2008-11-11 Roland McGrath <roland@redhat.com> 2008-11-11 09:50:06 +00:00
dl-irel.h Better error message for invalid relocatio in static binary. 2009-06-01 11:39:24 -07:00
dl-lookupcfg.h Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
dl-machine.h Small optimization of STT_GNU_IFUNC handling. 2009-06-01 11:49:05 -07:00
dl-runtime.c * elf/dl-runtime.c (reloc_offset): Define. 2009-03-15 00:26:14 +00:00
dl-tls.h Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
dl-tlsdesc.h Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
dl-tlsdesc.S Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
dl-trampoline.S Improve CFI in x86-64 ld.so trampoline code. 2009-07-29 08:50:03 -07:00
ffs.c Update. 2004-07-05 17:36:34 +00:00
ffsll.c
fpu_control.h
hp-timing.c
hp-timing.h [BZ #789] 2005-03-15 22:31:32 +00:00
htonl.S
Implies
jmpbuf-offsets.h * include/bits/setjmp.h: New file. 2006-01-10 10:18:56 +00:00
jmpbuf-unwind.h 2006-01-12 Roland McGrath <roland@redhat.com> 2006-01-12 09:27:47 +00:00
ldbl2mpn.c [BZ #4586] 2007-06-08 02:50:59 +00:00
link-defines.sym Add AVX support to ld.so auditing for x86-64. 2009-07-10 12:04:14 -07:00
lshift.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
machine-gmon.h
Makefile Refine testing for xmm/ymm register use in x86-64 ld.so. 2009-07-27 13:40:27 -07:00
memchr.S Fix x86-64 memchr for large lengths. 2009-06-16 10:23:31 -07:00
memcmp.S Fix up whitespaces in new memcmp for x86-64. 2009-07-16 07:02:27 -07:00
memcpy_chk.S 2004-10-15 Jakub Jelinek <jakub@redhat.com> 2004-10-18 04:17:19 +00:00
memcpy.S * sysdeps/x86_64/cacheinfo.c (__x86_64_data_cache_size_half): Renamed 2007-09-22 05:54:03 +00:00
mempcpy_chk.S 2004-10-15 Jakub Jelinek <jakub@redhat.com> 2004-10-18 04:17:19 +00:00
mempcpy.S * sysdeps/unix/sysv/linux/x86_64/sysconf.c: Move cache information 2007-05-21 19:21:48 +00:00
memset_chk.S * posix/bits/unistd.h: Avoid calling __*_chk variants if we can 2005-03-01 00:35:23 +00:00
memset.S * sysdeps/x86_64/memset.S: Reduce size of tables for PIC. 2008-08-14 18:58:04 +00:00
memusage.h
mp_clz_tab.c * sysdeps/x86_64/mp_clz_tab.c: New file. 2009-04-15 04:30:41 +00:00
mul_1.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
rawmemchr.S Add SSE4.2 optimized rawmemchr implementation for x86-64. 2009-06-05 16:54:50 -07:00
rshift.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
rtld-memcmp.c Make sure no code in ld.so uses xmm/ymm registers on x86-64. 2009-07-26 16:10:00 -07:00
rtld-memset.c * sysdeps/x86_64/rtld-memset.c: New file. 2008-03-07 17:55:11 +00:00
rtld-strchr.S Make sure no code in ld.so uses xmm/ymm registers on x86-64. 2009-07-26 16:10:00 -07:00
rtld-strlen.S Make sure no code in ld.so uses xmm/ymm registers on x86-64. 2009-07-26 16:10:00 -07:00
sched_cpucount.c * posix/sched_cpucount.c (__sched_cpucount): Allow using special 2007-06-08 19:23:19 +00:00
setjmp.S 2006-01-12 Roland McGrath <roland@redhat.com> 2006-01-12 09:27:47 +00:00
stackinfo.h [BZ #9750] 2009-01-29 00:17:57 +00:00
stpcpy_chk.S 2004-10-15 Jakub Jelinek <jakub@redhat.com> 2004-10-18 04:17:19 +00:00
stpcpy.S Update. 2004-05-28 06:56:51 +00:00
strcat.S
strchr.S * sysdeps/x86_64/strchr.S: Likewise. 2009-04-06 03:29:26 +00:00
strchrnul.S * malloc/malloc.c (_int_realloc): Add parameter with old block 2009-04-08 18:00:34 +00:00
strcmp.S Add SSE2 support to str{,n}cmp for x86-64. 2009-07-26 13:32:28 -07:00
strcpy_chk.S 2004-10-15 Jakub Jelinek <jakub@redhat.com> 2004-10-18 04:17:19 +00:00
strcpy.S
strcspn.S * sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally 2005-03-31 10:02:53 +00:00
strlen.S More small optimizations for x86-64 strlen. 2009-06-04 16:45:35 -07:00
strncmp.S Add SSE2 support to str{,n}cmp for x86-64. 2009-07-26 13:32:28 -07:00
strpbrk.S
strrchr.S * sysdeps/x86-64/strrchr.S: New file. 2009-04-14 05:58:16 +00:00
strspn.S * sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally 2005-03-31 10:02:53 +00:00
strtok_r.S Update. 2004-07-10 20:00:44 +00:00
strtok.S [BZ #2126] 2006-01-10 00:25:07 +00:00
sub_n.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
submul_1.S Optimizations from GMP. 2009-04-14 22:26:05 +00:00
sysdep.h
tlsdesc.c Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
tlsdesc.sym Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
tst-stack-align.h
tst-xmmymm.sh Preserve SSE registers in runtime relocations on x86-64. 2009-07-29 08:33:03 -07:00
Versions * sysdeps/generic/w_exp2.c [NO_LONG_DOUBLE]: Fix typos in alias names. 2005-03-28 20:42:53 +00:00