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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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This patch optimizes powerpc spinlock implementation by:
* Use the correct EH hint bit on the larx for supported ISA. For lock
acquisition, the thread that acquired the lock with a successful stcx
does not want to give away the write ownership on the cacheline. The
idea is to make the load reservation "sticky" about retaining write
authority to the line. That way, the store that must inevitably come
to release the lock can succeed quickly and not contend with other
threads issuing lwarx. If another thread does a store to the line
(false sharing), the winning thread must give up write authority to
the proper value of EH for the larx for a lock acquisition is 1.
* Increase contented lock performance by up to 40%, and no measurable
impact on uncontended locks on P8.
Thanks to Adhemerval Zanella who did most of the work. I've run some
tests, and addressed some minor feedback.
* sysdeps/powerpc/nptl/pthread_spin_lock.c (pthread_spin_lock):
Add lwarx hint, and use macro for acquire instruction.
* sysdeps/powerpc/nptl/pthread_spin_trylock.c (pthread_spin_trylock):
Likewise.
* sysdep/unix/sysv/linux/powerpc/pthread_spin_unlock.c: Move to ...
* sysdeps/powerpc/nptl/pthread_spin_unlock.c: ... here, and
update to use new atomic macros.
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