Joseph Myers
d614a75396
Update copyright dates with scripts/update-copyrights.
2020-01-01 00:14:33 +00:00
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
Joseph Myers
04277e02d7
Update copyright dates with scripts/update-copyrights.
...
* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e
Update copyright dates with scripts/update-copyrights.
...
* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
2018-01-01 00:32:25 +00:00
H.J. Lu
58d021c836
x86-64: Update comments in IFUNC selectors
...
* sysdeps/x86_64/multiarch/memcmp.c: Update comments.
* sysdeps/x86_64/multiarch/memmove.c: Likewise.
* sysdeps/x86_64/multiarch/memrchr.c: Likewise.
* sysdeps/x86_64/multiarch/memset.c: Likewise.
* sysdeps/x86_64/multiarch/rawmemchr.c: Likewise.
* sysdeps/x86_64/multiarch/strchrnul.c: Likewise.
* sysdeps/x86_64/multiarch/strlen.c: Likewise.
* sysdeps/x86_64/multiarch/strnlen.c: Likewise.
* sysdeps/x86_64/multiarch/wcschr.c: Likewise.
* sysdeps/x86_64/multiarch/wcscpy.c: Likewise.
* sysdeps/x86_64/multiarch/wcslen.c: Likewise.
* sysdeps/x86_64/multiarch/wcsnlen.c: Likewise.
* sysdeps/x86_64/multiarch/wmemchr.c: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp.c: Likewise.
* sysdeps/x86_64/multiarch/wmemset.c: Likewise.
* sysdeps/x86_64/multiarch/wmemset_chk.c: Likewise.
2017-07-09 11:43:20 -07:00
H.J. Lu
93e46f8773
x86-64: Implement memset family IFUNC selectors in C
...
Implement memset family IFUNC selectors in C.
All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register. For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized. Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for memset functions within libc.
2017-06-07 H.J. Lu <hongjiu.lu@intel.com>
Erich Elsen <eriche@google.com>
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
memset-sse2-unaligned-erms, and memset_chk-nonshared.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add test for __memset_chk_erms.
Update comments.
* sysdeps/x86_64/multiarch/ifunc-memset.h: New file.
* sysdeps/x86_64/multiarch/memset-sse2-unaligned-erms.S: Likewise.
* sysdeps/x86_64/multiarch/memset.c: Likewise.
* sysdeps/x86_64/multiarch/memset_chk-nonshared.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.c: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Removed.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
(__memset_chk_erms): New function.
2017-06-15 08:33:35 -07:00
H.J. Lu
5e1122827a
x86-64: Rename wmemset.h to ifunc-wmemset.h
...
No code changes.
* sysdeps/x86_64/multiarch/wmemset.c: Include ifunc-wmemset.h
instead of wmemset.h.
* sysdeps/x86_64/multiarch/wmemset_chk.c: Likewise.
* sysdeps/x86_64/multiarch/wmemset.h: Renamed to ...
* sysdeps/x86_64/multiarch/ifunc-wmemset.h: This.
2017-06-07 14:48:34 -07:00
H.J. Lu
ef9c4cb6c7
x86-64: Optimize wmemset with SSE2/AVX2/AVX512
...
The difference between memset and wmemset is byte vs int. Add stubs
to SSE2/AVX2/AVX512 memset for wmemset with updated constant and size:
SSE2 wmemset:
shl $0x2,%rdx
movd %esi,%xmm0
mov %rdi,%rax
pshufd $0x0,%xmm0,%xmm0
jmp entry_from_wmemset
SSE2 memset:
movd %esi,%xmm0
mov %rdi,%rax
punpcklbw %xmm0,%xmm0
punpcklwd %xmm0,%xmm0
pshufd $0x0,%xmm0,%xmm0
entry_from_wmemset:
Since the ERMS versions of wmemset requires "rep stosl" instead of
"rep stosb", only the vector store stubs of SSE2/AVX2/AVX512 wmemset
are added. The SSE2 wmemset is about 3X faster and the AVX2 wmemset
is about 6X faster on Haswell.
* include/wchar.h (__wmemset_chk): New.
* sysdeps/x86_64/memset.S (VDUP_TO_VEC0_AND_SET_RETURN): Renamed
to MEMSET_VDUP_TO_VEC0_AND_SET_RETURN.
(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
(WMEMSET_CHK_SYMBOL): Likewise.
(WMEMSET_SYMBOL): Likewise.
(__wmemset): Add hidden definition.
(wmemset): Add weak hidden definition.
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
wmemset_chk-nonshared.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add __wmemset_sse2_unaligned,
__wmemset_avx2_unaligned, __wmemset_avx512_unaligned,
__wmemset_chk_sse2_unaligned, __wmemset_chk_avx2_unaligned
and __wmemset_chk_avx512_unaligned.
* sysdeps/x86_64/multiarch/memset-avx2-unaligned-erms.S
(VDUP_TO_VEC0_AND_SET_RETURN): Renamed to ...
(MEMSET_VDUP_TO_VEC0_AND_SET_RETURN): This.
(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
(WMEMSET_SYMBOL): Likewise.
* sysdeps/x86_64/multiarch/memset-avx512-unaligned-erms.S
(VDUP_TO_VEC0_AND_SET_RETURN): Renamed to ...
(MEMSET_VDUP_TO_VEC0_AND_SET_RETURN): This.
(WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN): New.
(WMEMSET_SYMBOL): Likewise.
* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: Updated.
(WMEMSET_CHK_SYMBOL): New.
(WMEMSET_CHK_SYMBOL (__wmemset_chk, unaligned)): Likewise.
(WMEMSET_SYMBOL (__wmemset, unaligned)): Likewise.
* sysdeps/x86_64/multiarch/memset.S (WMEMSET_SYMBOL): New.
(libc_hidden_builtin_def): Also define __GI_wmemset and
__GI___wmemset.
(weak_alias): New.
* sysdeps/x86_64/multiarch/wmemset.c: New file.
* sysdeps/x86_64/multiarch/wmemset.h: Likewise.
* sysdeps/x86_64/multiarch/wmemset_chk-nonshared.S: Likewise.
* sysdeps/x86_64/multiarch/wmemset_chk.c: Likewise.
* sysdeps/x86_64/wmemset.c: Likewise.
* sysdeps/x86_64/wmemset_chk.c: Likewise.
2017-06-05 11:09:59 -07:00
