H.J. Lu
107e6a3c22
x86: Support usable check for all CPU features
...
Support usable check for all CPU features with the following changes:
1. Change struct cpu_features to
struct cpuid_features
{
struct cpuid_registers cpuid;
struct cpuid_registers usable;
};
struct cpu_features
{
struct cpu_features_basic basic;
struct cpuid_features features[COMMON_CPUID_INDEX_MAX];
unsigned int preferred[PREFERRED_FEATURE_INDEX_MAX];
...
};
so that there is a usable bit for each cpuid bit.
2. After the cpuid bits have been initialized, copy the known bits to the
usable bits. EAX/EBX from INDEX_1 and EAX from INDEX_7 aren't used for
CPU feature detection.
3. Clear the usable bits which require OS support.
4. If the feature is supported by OS, copy its cpuid bit to its usable
bit.
5. Replace HAS_CPU_FEATURE and CPU_FEATURES_CPU_P with CPU_FEATURE_USABLE
and CPU_FEATURE_USABLE_P to check if a feature is usable.
6. Add DEPR_FPU_CS_DS for INDEX_7_EBX_13.
7. Unset MPX feature since it has been deprecated.
The results are
1. If the feature is known and doesn't requre OS support, its usable bit
is copied from the cpuid bit.
2. Otherwise, its usable bit is copied from the cpuid bit only if the
feature is known to supported by OS.
3. CPU_FEATURE_USABLE/CPU_FEATURE_USABLE_P are used to check if the
feature can be used.
4. HAS_CPU_FEATURE/CPU_FEATURE_CPU_P are used to check if CPU supports
the feature.
2020-07-13 06:05:16 -07:00
Paul Eggert
5a82c74822
Prefer https to http for gnu.org and fsf.org URLs
...
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00
H.J. Lu
973da22a35
i686: Implement IFUNC selectors in C
...
* sysdeps/i386/i686/multiarch/Makefile (sysdep_routines): Add
bcopy-ia32, bzero-ia32, rawmemchr-ia32 memchr-ia32,
memcmp-ia32, memcpy-ia32, memmove-ia32, mempcpy-ia32,
memset-ia32, strcat-ia32, strchr-ia32, strrchr-ia32,
strcpy-ia32, strcmp-ia32, strcspn-ia32, strpbrk-ia32,
strspn-ia32, strlen-ia32, stpcpy-ia32, stpncpy-ia32,
memcpy_chk-nonshared, mempcpy_chk-nonshared,
memmove_chk-nonshared and memset_chk-nonshared
* sysdeps/i386/i686/multiarch/bcopy-ia32.S: New file.
* sysdeps/i386/i686/multiarch/bcopy.c: Likewise.
* sysdeps/i386/i686/multiarch/bzero-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/bzero.c: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-memmove.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-memset.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-sse2-bsf.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-sse2-ssse3.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-sse2.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-sse4_2.h: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-ssse3-sse4_2.h: Likewise.
* sysdeps/i386/i686/multiarch/memchr-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr.c: Likewise.
* sysdeps/i386/i686/multiarch/memcmp-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp.c: Likewise.
* sysdeps/i386/i686/multiarch/memcpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.c: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk-nonshared.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.c: Likewise.
* sysdeps/i386/i686/multiarch/memmove-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.c: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk-nonshared.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.c: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.c: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk-nonshared.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.c: Likewise.
* sysdeps/i386/i686/multiarch/memrchr.c: Likewise.
* sysdeps/i386/i686/multiarch/memset-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.c: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk-nonshared.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr.c: Likewise.
* sysdeps/i386/i686/multiarch/stpcpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/stpcpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/stpcpy.c: Likewise.
* sysdeps/i386/i686/multiarch/stpncpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/stpncpy.c: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp.c: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp_l.c: Likewise.
* sysdeps/i386/i686/multiarch/strcat-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat.c: Likewise.
* sysdeps/i386/i686/multiarch/strchr-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr.c: Likewise.
* sysdeps/i386/i686/multiarch/strcmp-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp.c: Likewise.
* sysdeps/i386/i686/multiarch/strcpy-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy.c: Likewise.
* sysdeps/i386/i686/multiarch/strcspn-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strcspn.c: Likewise.
* sysdeps/i386/i686/multiarch/strlen-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen.c: Likewise.
* sysdeps/i386/i686/multiarch/strncase.c: Likewise.
* sysdeps/i386/i686/multiarch/strncase_l.c: Likewise.
* sysdeps/i386/i686/multiarch/strncat.c: Likewise.
* sysdeps/i386/i686/multiarch/strncmp.c: Likewise.
* sysdeps/i386/i686/multiarch/strncpy.c: Likewise.
* sysdeps/i386/i686/multiarch/strnlen.c: Likewise.
* sysdeps/i386/i686/multiarch/strpbrk-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strpbrk.c: Likewise.
* sysdeps/i386/i686/multiarch/strrchr-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr.c: Likewise.
* sysdeps/i386/i686/multiarch/strspn-ia32.S: Likewise.
* sysdeps/i386/i686/multiarch/strspn.c: Likewise.
* sysdeps/i386/i686/multiarch/wcschr.c: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp.c: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy.c: Likewise.
* sysdeps/i386/i686/multiarch/wcslen.c: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr.c: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp.c: Likewise.
* sysdeps/i386/i686/multiarch/bcopy.S: Removed.
* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr.S: Likewise.
* sysdeps/i386/i686/multiarch/stpcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/stpncpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp_l.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strcspn.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strncase.S: Likewise.
* sysdeps/i386/i686/multiarch/strncase_l.S: Likewise.
* sysdeps/i386/i686/multiarch/strncat.S: Likewise.
* sysdeps/i386/i686/multiarch/strncmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strncpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strnlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strpbrk.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strspn.S: Likewise.
* sysdeps/i386/i686/multiarch/wcschr.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy.S: Likewise.
* sysdeps/i386/i686/multiarch/wcslen.S: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp.S: Likewise.
2017-08-04 13:29:38 -07:00
