| Commit message (Collapse) | Author | Age | Files | 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 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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program with appropriate message if the corresponding dlfcn.h routine
returns an error.
Use them in stdlib/tst-tls-atexit.c
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* crypt/md5.h: Test _LIBC with #if defined, not #if.
* dirent/opendir-tst1.c: Include sys/stat.h.
* dirent/tst-fdopendir.c: Include sys/stat.h.
* dirent/tst-fdopendir2.c: Include stdlib.h.
* dirent/tst-scandir.c: Include stdbool.h.
* elf/tst-auditmod1.c: Include link.h and stddef.h.
* elf/tst-tls15.c: Include stdlib.h.
* elf/tst-tls16.c: Include stdlib.h.
* elf/tst-tls17.c: Include stdlib.h.
* elf/tst-tls18.c: Include stdlib.h.
* iconv/tst-iconv6.c: Include endian.h.
* iconvdata/bug-iconv11.c: Include limits.h.
* io/test-utime.c: Include stdint.h.
* io/tst-faccessat.c: Include sys/stat.h.
* io/tst-fchmodat.c: Include sys/stat.h.
* io/tst-fchownat.c: Include sys/stat.h.
* io/tst-fstatat.c: Include sys/stat.h.
* io/tst-futimesat.c: Include sys/stat.h.
* io/tst-linkat.c: Include sys/stat.h.
* io/tst-mkdirat.c: Include sys/stat.h and stdbool.h.
* io/tst-mkfifoat.c: Include sys/stat.h and stdbool.h.
* io/tst-mknodat.c: Include sys/stat.h and stdbool.h.
* io/tst-openat.c: Include stdbool.h.
* io/tst-readlinkat.c: Include sys/stat.h.
* io/tst-renameat.c: Include sys/stat.h.
* io/tst-symlinkat.c: Include sys/stat.h.
* io/tst-unlinkat.c: Include stdbool.h.
* libio/bug-memstream1.c: Include stdlib.h.
* libio/bug-wmemstream1.c: Include stdlib.h.
* libio/tst-fwrite-error.c: Include stdlib.h.
* libio/tst-memstream1.c: Include stdlib.h.
* libio/tst-memstream2.c: Include stdlib.h.
* libio/tst-memstream3.c: Include stdlib.h.
* malloc/tst-interpose-aux.c: Include stdint.h.
* misc/tst-preadvwritev-common.c: Include sys/stat.h.
* nptl/tst-basic7.c: Include limits.h.
* nptl/tst-cancel25.c: Include pthread.h, not pthreadP.h.
* nptl/tst-cancel4.c: Include stddef.h, limits.h, and sys/stat.h.
* nptl/tst-cancel4_1.c: Include stddef.h.
* nptl/tst-cancel4_2.c: Include stddef.h.
* nptl/tst-cond16.c: Include limits.h.
Use sysconf(_SC_PAGESIZE) instead of __getpagesize.
* nptl/tst-cond18.c: Include limits.h.
Use sysconf(_SC_PAGESIZE) instead of __getpagesize.
* nptl/tst-cond4.c: Include stdint.h.
* nptl/tst-cond6.c: Include stdint.h.
* nptl/tst-stack2.c: Include limits.h.
* nptl/tst-stackguard1.c: Include stddef.h.
* nptl/tst-tls4.c: Include stdint.h. Don't include tls.h.
* nptl/tst-tls4moda.c: Include stddef.h.
Don't include stdio.h, unistd.h, or tls.h.
* nptl/tst-tls4modb.c: Include stddef.h.
Don't include stdio.h, unistd.h, or tls.h.
* nptl/tst-tls5.h: Include stddef.h. Don't include stdlib.h or tls.h.
* posix/tst-getaddrinfo2.c: Include stdio.h.
* posix/tst-getaddrinfo5.c: Include stdio.h.
* posix/tst-pathconf.c: Include sys/stat.h.
* posix/tst-posix_fadvise-common.c: Include stdint.h.
* posix/tst-preadwrite-common.c: Include sys/stat.h.
* posix/tst-regex.c: Include stdint.h.
Don't include spawn.h or spawn_int.h.
* posix/tst-regexloc.c: Don't include spawn.h or spawn_int.h.
* posix/tst-vfork3.c: Include sys/stat.h.
* resolv/tst-bug18665-tcp.c: Include stdlib.h.
* resolv/tst-res_hconf_reorder.c: Include stdlib.h.
* resolv/tst-resolv-search.c: Include stdlib.h.
* stdio-common/tst-fmemopen2.c: Include stdint.h.
* stdio-common/tst-vfprintf-width-prec.c: Include stdlib.h.
* stdlib/test-canon.c: Include sys/stat.h.
* stdlib/tst-tls-atexit.c: Include stdbool.h.
* string/test-memchr.c: Include stdint.h.
* string/tst-cmp.c: Include stdint.h.
* sysdeps/pthread/tst-timer.c: Include stdint.h.
* sysdeps/unix/sysv/linux/tst-sync_file_range.c: Include stdint.h.
* sysdeps/wordsize-64/tst-writev.c: Include limits.h and stdint.h.
* sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h.
Don't include init-arch.h.
* sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h.
Don't include init-arch.h.
* sysdeps/x86_64/tst-auditmod10b.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod3b.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod4b.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod5b.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod6b.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod6c.c: Include link.h and stddef.h.
* sysdeps/x86_64/tst-auditmod7b.c: Include link.h and stddef.h.
* time/clocktest.c: Include stdint.h.
* time/tst-posixtz.c: Include stdint.h.
* timezone/tst-timezone.c: Include stdint.h.
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When an TLS destructor is registered, we set the DF_1_NODELETE flag to
signal that the object should not be destroyed. We then clear the
DF_1_NODELETE flag when all destructors are called, which is wrong -
the flag could have been set by other means too.
This patch replaces this use of the flag by using l_tls_dtor_count
directly to determine whether it is safe to unload the object. This
change has the added advantage of eliminating the lock taking when
calling the destructors, which could result in a deadlock. The patch
also fixes the test case tst-tls-atexit - it was making an invalid
dlclose call, which would just return an error silently.
I have also added a detailed note on concurrency which also aims to
justify why I chose the semantics I chose for accesses to
l_tls_dtor_count. Thanks to Torvald for his help in getting me
started on this and (literally) teaching my how to approach the
problem.
Change verified on x86_64; the test suite does not show any
regressions due to the patch.
ChangeLog:
[BZ #18657]
* elf/dl-close.c (_dl_close_worker): Don't unload DSO if there
are pending TLS destructor calls.
* include/link.h (struct link_map): Add concurrency note for
L_TLS_DTOR_COUNT.
* stdlib/cxa_thread_atexit_impl.c (__cxa_thread_atexit_impl):
Don't touch the link map flag. Atomically increment
l_tls_dtor_count.
(__call_tls_dtors): Atomically decrement l_tls_dtor_count.
Avoid taking the load lock and don't touch the link map flag.
* stdlib/tst-tls-atexit-nodelete.c: New test case.
* stdlib/Makefile (tests): Use it.
* stdlib/tst-tls-atexit.c (do_test): dlopen
tst-tls-atexit-lib.so again before dlclose. Add conditionals
to allow tst-tls-atexit-nodelete test case to use it.
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The tst-tls-atexit test case searches for its module in /proc/PID/maps
to verify that it is unloaded, which is a Linux-specific test. This
patch makes the test generic by looking for the library in the link
map list in the _r_debug structure.
Verified that the test continues to succeed on x86_64. There is a bug
in the test case where it calls dlclose once again, which is actually
incorrect but still manages to unload the DSO thanks to an existing
bug in __tls_call_dtors. This will be fixed in a later patch which
also fixes up the __cxa_thread_atexit_impl implementation. I have
added a FIXME comment to that call momentarily, which I will remove
when I fix the problem.
* stdlib/tst-tls-atexit-lib.c (do_foo): Rename to reg_dtor.
* stdlib/tst-tls-atexit.c: (is_loaded): New function.
(spawn_thread): New function.
(load): Rename to reg_dtor_and_close. Move dlopen to...
(do_test): ... here. Use IS_LOADED to test for its
availability.
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The locks don't synchronize with anything - they were likely
introduced initially to synchronize with some main thread code, but
that is no longer evident.
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This patch modifies several test cases to use test-skeleton.c.
It was generated by a bash script written for this purpose and
thus excludes several other tests which I deemed worth a visual
inspection before making the change.
I intend to follow up with individual patches to the tests
skipped by the script.
The script itself resides at http://git.io/WODAmg and should
reproduce this very patch when run against master.
ChangeLog:
2014-10-30 Arjun Shankar <arjun.is@lostca.se>
* catgets/test-gencat.c: Use test-skeleton.c.
* catgets/tst-catgets.c: Likewise.
* csu/tst-empty.c: Likewise.
* elf/tst-audit2.c: Likewise.
* elf/tst-global1.c: Likewise.
* elf/tst-pathopt.c: Likewise.
* elf/tst-piemod1.c: Likewise.
* elf/tst-tls10.c: Likewise.
* elf/tst-tls11.c: Likewise.
* elf/tst-tls12.c: Likewise.
* gnulib/tst-gcc.c: Likewise.
* iconvdata/tst-e2big.c: Likewise.
* iconvdata/tst-loading.c: Likewise.
* iconv/tst-iconv1.c: Likewise.
* iconv/tst-iconv2.c: Likewise.
* inet/test-inet6_opt.c: Likewise.
* inet/tst-gethnm.c: Likewise.
* inet/tst-network.c: Likewise.
* inet/tst-ntoa.c: Likewise.
* intl/tst-codeset.c: Likewise.
* intl/tst-gettext2.c: Likewise.
* intl/tst-gettext3.c: Likewise.
* intl/tst-ngettext.c: Likewise.
* intl/tst-translit.c: Likewise.
* io/test-stat.c: Likewise.
* libio/test-fmemopen.c: Likewise.
* libio/tst-freopen.c: Likewise.
* libio/tst-sscanf.c: Likewise.
* libio/tst-ungetwc1.c: Likewise.
* libio/tst-ungetwc2.c: Likewise.
* libio/tst-widetext.c: Likewise.
* localedata/tst-ctype.c: Likewise.
* localedata/tst-digits.c: Likewise.
* localedata/tst-leaks.c: Likewise.
* localedata/tst-mbswcs1.c: Likewise.
* localedata/tst-mbswcs2.c: Likewise.
* localedata/tst-mbswcs3.c: Likewise.
* localedata/tst-mbswcs4.c: Likewise.
* localedata/tst-mbswcs5.c: Likewise.
* localedata/tst-setlocale.c: Likewise.
* localedata/tst-trans.c: Likewise.
* localedata/tst-wctype.c: Likewise.
* localedata/tst-xlocale1.c: Likewise.
* login/tst-grantpt.c: Likewise.
* malloc/tst-calloc.c: Likewise.
* malloc/tst-malloc.c: Likewise.
* malloc/tst-mallocstate.c: Likewise.
* malloc/tst-mcheck.c: Likewise.
* malloc/tst-mtrace.c: Likewise.
* malloc/tst-obstack.c: Likewise.
* math/atest-exp2.c: Likewise.
* math/atest-exp.c: Likewise.
* math/atest-sincos.c: Likewise.
* math/test-matherr.c: Likewise.
* math/test-misc.c: Likewise.
* math/test-powl.c: Likewise.
* math/tst-definitions.c: Likewise.
* misc/tst-dirname.c: Likewise.
* misc/tst-efgcvt.c: Likewise.
* misc/tst-fdset.c: Likewise.
* misc/tst-hsearch.c: Likewise.
* misc/tst-mntent2.c: Likewise.
* nptl/tst-sem7.c: Likewise.
* nptl/tst-sem8.c: Likewise.
* nptl/tst-sem9.c: Likewise.
* nss/test-netdb.c: Likewise.
* posix/tst-fnmatch.c: Likewise.
* posix/tst-getlogin.c: Likewise.
* posix/tst-gnuglob.c: Likewise.
* posix/tst-mmap.c: Likewise.
* pwd/tst-getpw.c: Likewise.
* resolv/tst-inet_ntop.c: Likewise.
* rt/tst-timer.c: Likewise.
* stdio-common/test-fseek.c: Likewise.
* stdio-common/test-popen.c: Likewise.
* stdio-common/test-vfprintf.c: Likewise.
* stdio-common/tst-cookie.c: Likewise.
* stdio-common/tst-fileno.c: Likewise.
* stdio-common/tst-gets.c: Likewise.
* stdio-common/tst-obprintf.c: Likewise.
* stdio-common/tst-perror.c: Likewise.
* stdio-common/tst-sprintf2.c: Likewise.
* stdio-common/tst-sprintf3.c: Likewise.
* stdio-common/tst-sprintf.c: Likewise.
* stdio-common/tst-swprintf.c: Likewise.
* stdio-common/tst-tmpnam.c: Likewise.
* stdio-common/tst-unbputc.c: Likewise.
* stdio-common/tst-wc-printf.c: Likewise.
* stdlib/tst-environ.c: Likewise.
* stdlib/tst-fmtmsg.c: Likewise.
* stdlib/tst-limits.c: Likewise.
* stdlib/tst-rand48-2.c: Likewise.
* stdlib/tst-rand48.c: Likewise.
* stdlib/tst-random2.c: Likewise.
* stdlib/tst-random.c: Likewise.
* stdlib/tst-strtol.c: Likewise.
* stdlib/tst-strtoll.c: Likewise.
* stdlib/tst-tls-atexit.c: Likewise.
* stdlib/tst-xpg-basename.c: Likewise.
* string/test-ffs.c: Likewise.
* string/tst-bswap.c: Likewise.
* string/tst-inlcall.c: Likewise.
* string/tst-strtok.c: Likewise.
* string/tst-strxfrm.c: Likewise.
* sysdeps/x86_64/tst-audit10.c: Likewise.
* sysdeps/x86_64/tst-audit3.c: Likewise.
* sysdeps/x86_64/tst-audit4.c: Likewise.
* sysdeps/x86_64/tst-audit5.c: Likewise.
* time/tst-ftime_l.c: Likewise.
* time/tst-getdate.c: Likewise.
* time/tst-mktime3.c: Likewise.
* time/tst-mktime.c: Likewise.
* time/tst-posixtz.c: Likewise.
* time/tst-strptime2.c: Likewise.
* time/tst-strptime3.c: Likewise.
* wcsmbs/tst-btowc.c: Likewise.
* wcsmbs/tst-mbrtowc.c: Likewise.
* wcsmbs/tst-mbsrtowcs.c: Likewise.
* wcsmbs/tst-wchar-h.c: Likewise.
* wcsmbs/tst-wcpncpy.c: Likewise.
* wcsmbs/tst-wcrtomb.c: Likewise.
* wcsmbs/tst-wcsnlen.c: Likewise.
* wcsmbs/tst-wcstof.c: Likewise.
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This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker. The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
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