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I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.
I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah. I don't
know why I run into these diagnostics whereas others evidently do not.
remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
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I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
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Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^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
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* 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.
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* 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.
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Support added to identify Sparc M7/T7/S7/M8/T8 processor capability.
Performance tests run on Sparc S7 using new code and old niagara4 code.
Optimizations for memcpy also apply to mempcpy and memmove
where they share code. Optimizations for memset also apply
to bzero as they share code.
For memcpy/mempcpy/memmove, performance comparison with niagara4 code:
Long word aligned data
0-127 bytes - minimal changes
128-1023 bytes - 7-30% gain
1024+ bytes - 1-7% gain (in cache); 30-100% gain (out of cache)
Word aligned data
0-127 bytes - 50%+ gain
128-1023 bytes - 10-200% gain
1024+ bytes - 0-15% gain (in cache); 5-50% gain (out of cache)
Unaligned data
0-127 bytes - 0-70%+ gain
128-447 bytes - 40-80%+ gain
448-511 bytes - 1-3% loss
512-4096 bytes - 2-3% gain (in cache); 0-20% gain (out of cache)
4096+ bytes - ± 3% (in cache); 20-50% gain (out of cache)
Tested in sparcv9-*-* and sparc64-*-* targets in both multi and
non-multi arch configurations.
Patrick McGehearty <patrick.mcgehearty@oracle.com>
Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
(sysdeps_routines): Add memcpy-memmove-niagara7 and memmove-ultra1.
* sysdeps/sparc/sparc64/multiarch/Makefile (sysdeps_routines):
Likewise.
* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-memmove-niagara7.S:
New file.
* sysdeps/sparc/sparc32/sparcv9/multiarch/memmove-ultra1.S: Likewise.
* sysdeps/sparc/sparc32/sparcv9/multiarch/rtld-memmove.c: Likewise.
* sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add __memcpy_niagara7, __mempcpy_niagara7,
and __memmove_niagara7.
* sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h (IFUNC_SELECTOR):
Add niagara7 option.
* sysdeps/sparc/sparc64/multiarch/memmove.c: New file.
* sysdeps/sparc/sparc64/multiarch/ifunc-memmove.h: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-memmove-niagara7.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memmove-ultra1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/rtld-memmove.c: Likewise.
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This patch refactor the SPARC64 ifunc selector to a C implementation.
The x86_64 implementation is used as default, which resulted in common
definitions (ifunc-init.h) used on both architectures. No functional
change is expected, including ifunc resolution rules.
Checked on sparc64-linux-gnu, sparcv9-linux-gnu and x86_64-linux-gnu.
* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-ultra1.S: New
file.
* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.c: Likewise.
* sysdeps/sparc/sparc32/sparcv9/multiarch/mempcpy.c: Likewise.
* sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-ultra1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy.c: Likewise.
* sysdeps/sparc/sparc64/multiarch/mempcpy.c: Likewise.
* sysdeps/sparc/sparc-ifunc.h (sparc_libc_ifunc_redirected): New
macro.
* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
[$(subdir) = string] (sysdep_routines): Add memcpy-ultra1.
* sysdeps/sparc/sparc64/multiarch/Makefile [$(subdir) = string]
(sysdep_routines): Add memcpy-ultra1.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Remove file.
* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.S: Likewise.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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