Age | Commit message (Collapse) | Author | Files | Lines |
|
On Mon, Apr 29, 2024 at 01:44:24PM +0000, Joseph Myers wrote:
> > glibc 2.34 and later doesn't have separate libpthread (libpthread.so.0 is a
> > dummy shared library with just some symbol versions for compatibility, but
> > all the pthread_* APIs are in libc.so.6).
>
> I suspect this has caused link failures in the glibc testsuite for Hurd,
> which still has separate libpthread.
>
> https://sourceware.org/pipermail/libc-testresults/2024q2/012556.html
So like this then?
2024-04-30 Jakub Jelinek <jakub@redhat.com>
* gthr.h (GTHREAD_USE_WEAK): Don't redefine to 0 for glibc 2.34+
on GNU Hurd.
|
|
glibc 2.34 and later doesn't have separate libpthread (libpthread.so.0 is a
dummy shared library with just some symbol versions for compatibility, but
all the pthread_* APIs are in libc.so.6).
So, we don't need to do the .weakref dances to check whether a program
has been linked with -lpthread or not, in dynamically linked apps those
will be always true anyway.
In -static linking, this fixes various issues people had when only linking
some parts of libpthread.a and getting weird crashes. A hack for that was
what e.g. some Fedora glibcs used, where libpthread.a was a library
containing just one giant *.o file which had all the normal libpthread.a
*.o files linked with -r together.
libstdc++-v3 actually does something like this already since r10-10928,
the following patch is meant to fix it even for libgfortran, libobjc and
whatever else uses gthr.h.
2024-04-25 Jakub Jelinek <jakub@redhat.com>
* gthr.h (GTHREAD_USE_WEAK): Redefine to 0 for GLIBC 2.34 or later.
|
|
|
|
|
|
|
|
|
|
From-SVN: r279813
|
|
From-SVN: r267494
|
|
From-SVN: r256169
|
|
From-SVN: r243994
|
|
From-SVN: r232055
|
|
From-SVN: r219188
|
|
From-SVN: r206295
|
|
From-SVN: r195731
|
|
* gthr.h (__gthread_cond_timedwait_recursive): Do not require.
* gthr-posix.h (__gthread_cond_timedwait_recursive): Remove.
From-SVN: r194652
|
|
libgcc:
PR other/53889
* gthr.h (__gthread_recursive_mutex_destroy): Document new required
function.
* gthr-posix.h (__gthread_recursive_mutex_destroy): Define.
* gthr-single.h (__gthread_recursive_mutex_destroy): Likewise.
* config/gthr-rtems.h (__gthread_recursive_mutex_destroy): Likewise.
* config/gthr-vxworks.h (__gthread_recursive_mutex_destroy): Likewise.
* config/i386/gthr-win32.h (__gthread_recursive_mutex_destroy):
Likewise.
* config/mips/gthr-mipssde.h (__gthread_recursive_mutex_destroy):
Likewise.
* config/pa/gthr-dce.h (__gthread_recursive_mutex_destroy): Likewise.
* config/s390/gthr-tpf.h (__gthread_recursive_mutex_destroy): Likewise.
libstdc++-v3:
PR other/53889
* include/std/mutex (__recursive_mutex_base::~__recursive_mutex_base):
Use __gthread_recursive_mutex_destroy.
(__recursive_mutex_base::_S_destroy): Remove.
(__recursive_mutex_base::_S_destroy_win32): Likewise.
* include/ext/concurrence.h (__recursive_mutex::~__recursive_mutex):
Use __gthread_recursive_mutex_destroy.
(__recursive_mutex::_S_destroy): Remove.
(__recursive_mutex::_S_destroy_win32): Likewise.
From-SVN: r192002
|
|
same time)
2012-03-12 Richard Guenther <rguenther@suse.de>
* gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
* gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
(__gthread_mutex_init_function): New function.
* gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
PR gcov/49484
* libgcov.c: Include gthr.h.
(__gcov_flush_mx): New global variable.
(init_mx, init_mx_once): New functions.
(__gcov_flush): Protect self with a mutex.
(__gcov_fork): Re-initialize mutex after forking.
* unwind-dw2-fde.c: Change condition under which to use
__GTHREAD_MUTEX_INIT_FUNCTION.
From-SVN: r185231
|
|
with libstdc++ when using MinGW.)
PR libstdc++/52300
* gthr.h (GTHREAD_USE_WEAK): Define as zero for mingw.
From-SVN: r184406
|
|
gcc:
* gthr-single.h, gthr.h: Move to ../libgcc.
* gthr-aix.h: Move to ../libgcc/config/rs6000.
* gthr-dce.h: Move to ../libgcc/config/pa.
* gthr-lynx.h: Move to ../libgcc/config.
* gthr-mipssde.h: Move to ../libgcc/config/mips.
* gthr-posix.h: Move to ../libgcc/config.
* gthr-rtems.h: Likewise.
* gthr-tpf.h: Move to ../libgcc/config/s390.
* gthr-vxworks.h: Move to ../libgcc/config.
* gthr-win32.h: Move to ../libgcc/config/i386.
* configure.ac (gthread_flags): Remove
(gthr-default.h): Don't create.
(thread_file): Don't substitute.
* configure: Regenerate.
* Makefile.in (GCC_THREAD_FILE): Remove.
(GTHREAD_FLAGS): Remove.
(libgcc.mvars): Remove GTHREAD_FLAGS.
* config/t-vxworks (EXTRA_HEADERS): Remove.
gcc/po:
* EXCLUDES (gthr-aix.h, gthr-dce.h, gthr-posix.c, gthr-posix.h)
(gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h)
(gthr-win32.h, gthr.h): Remove.
libgcc:
* gthr-single.h, gthr.h: New files.
* config/gthr-lynx.h, config/gthr-posix.h., config/gthr-rtems.h,
config/gthr-vxworks.h, config/i386/gthr-win32.h,
config/mips/gthr-mipssde.h, config/pa/gthr-dce.h,
config/rs6000/gthr-aix.h, config/s390/gthr-tpf.h: New files.
* config/i386/gthr-win32.c: Include "gthr-win32.h".
* configure.ac (thread_header): New variable.
Set it depending on target_thread_file.
(gthr-default.h): Link from $thread_header.
* configure: Regenerate.
* Makefile.in (LIBGCC2_CFLAGS): Remove $(GTHREAD_FLAGS).
libgfortran:
* Makefile.am (AM_CPPFLAGS): Add
-I$(srcdir)/$(MULTISRCTOP)../libgcc, -I$(MULTIBUILDTOP)../libgcc.
* Makefile.in: Regenerate.
* acinclude.m4 (LIBGFOR_CHECK_GTHR_DEFAULT): Remove.
* configure.ac (LIBGFOR_CHECK_GTHR_DEFAULT): Likewise.
* configure: Regenerate.
* config.h.in: Regenerate.
libobjc:
* Makefile.in (INCLUDES): Add -I$(MULTIBUILDTOP)../libgcc.
* configure.ac (target_thread_file, HAVE_GTHR_DEFAULT): Remove.
* configure: Regenerate.
* config.h.in: Regenerate.
libstdc++-v3:
* acinclude.m4 (GLIBCXX_CONFIGURE): Determine and substitute
toplevel_builddir.
(GLIBCXX_ENABLE_THREADS): Remove glibcxx_thread_h,
HAVE_GTHR_DEFAULT, enable_thread.
(GLIBCXX_CHECK_GTHREADS): Reflect gthr move to libgcc.
* include/Makefile.am (thread_host_headers): Remove
${host_builddir}/gthr-tpf.h.
(${host_builddir}/gthr.h): Reflect gthr move to libgcc.
Use $<.
(${host_builddir}/gthr-single.h): Likewise.
(${host_builddir}/gthr-posix.h): Likewise.
(${host_builddir}/gthr-tpf.h): Remove.
(${host_builddir}/gthr-default.h): Likewise.
* configure, config.h.in: Regenerate.
* Makefile.in, doc/Makefile.in, include/Makefile.in,
libsupc++/Makefile.in, po/Makefile.in, python/Makefile.in,
src/Makefile.intestsuite/Makefile.in: Regenerate.
From-SVN: r180776
|