[Bug dynamic-link/16628] Segfault after a binary without pthread dlopen()s a library linked with pthread

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16628

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9e78f6f6e7134a5f299cc8de77370218f8019237

commit 9e78f6f6e7134a5f299cc8de77370218f8019237
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Nov 30 15:59:57 2016 +0100

    Implement _dl_catch_error, _dl_signal_error in libc.so [BZ #16628]

    This change moves the main implementation of _dl_catch_error,
    _dl_signal_error to libc.so, where TLS variables can be used
    directly.  This removes a writable function pointer from the
    rtld_global variable.

    For use during initial relocation, minimal implementations of these
    functions are provided in ld.so.  These are eventually interposed
    by the libc.so implementations.  This is implemented by compiling
    elf/dl-error-skeleton.c twice, via elf/dl-error.c and
    elf/dl-error-minimal.c.

    As a side effect of this change, the static version of dl-error.c
    no longer includes support for the
    _dl_signal_cerror/_dl_receive_error mechanism because it is only
    used in ld.so.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |   78 +++++++
 dlfcn/dlerror.c                                    |    4 +-
 dlfcn/dlinfo.c                                     |    4 +-
 dlfcn/dlmopen.c                                    |    4 +-
 dlfcn/dlopen.c                                     |    2 +-
 elf/Makefile                                       |   21 ++-
 elf/Versions                                       |    6 +
 elf/dl-close.c                                     |    2 +-
 elf/dl-error-minimal.c                             |   23 ++
 elf/dl-error-skeleton.c                            |  230 ++++++++++++++++++++
 elf/dl-error.c                                     |  210 +-----------------
 elf/dl-libc.c                                      |    4 +-
 elf/dl-sym.c                                       |    8 +-
 elf/dl-tsd.c                                       |   53 -----
 elf/rtld.c                                         |   19 --
 elf/tst-latepthread.c                              |  105 +++++++++
 elf/tst-latepthreadmod.c                           |   33 +++
 nptl/nptl-init.c                                   |    4 -
 sysdeps/generic/ldsodefs.h                         |   46 +++--
 sysdeps/generic/localplt.data                      |    3 +
 sysdeps/unix/sysv/linux/aarch64/localplt.data      |    3 +
 sysdeps/unix/sysv/linux/alpha/localplt.data        |    3 +
 sysdeps/unix/sysv/linux/arm/localplt.data          |    3 +
 sysdeps/unix/sysv/linux/hppa/localplt.data         |    3 +
 sysdeps/unix/sysv/linux/i386/localplt.data         |    3 +
 sysdeps/unix/sysv/linux/ia64/localplt.data         |    3 +
 sysdeps/unix/sysv/linux/m68k/localplt.data         |    3 +
 sysdeps/unix/sysv/linux/microblaze/localplt.data   |    3 +
 sysdeps/unix/sysv/linux/nios2/localplt.data        |    3 +
 .../sysv/linux/powerpc/powerpc32/fpu/localplt.data |    3 +
 .../linux/powerpc/powerpc32/nofpu/localplt.data    |    3 +
 .../sysv/linux/powerpc/powerpc64/localplt.data     |    3 +
 sysdeps/unix/sysv/linux/s390/localplt.data         |    3 +
 sysdeps/unix/sysv/linux/sh/localplt.data           |    3 +
 .../unix/sysv/linux/sparc/sparc32/localplt.data    |    3 +
 .../unix/sysv/linux/sparc/sparc64/localplt.data    |    3 +
 sysdeps/x86_64/localplt.data                       |    3 +
 37 files changed, 595 insertions(+), 315 deletions(-)
 create mode 100644 elf/dl-error-minimal.c
 create mode 100644 elf/dl-error-skeleton.c
 delete mode 100644 elf/dl-tsd.c
 create mode 100644 elf/tst-latepthread.c
 create mode 100644 elf/tst-latepthreadmod.c

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