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2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* 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.
2018-06-29libc: Extend __libc_freeres framework (Bug 23329).Carlos O'Donell
The __libc_freeres framework does not extend to non-libc.so objects. This causes problems in general for valgrind and mtrace detecting unfreed objects in both libdl.so and libpthread.so. This change is a pre-requisite to properly moving the malloc hooks out of malloc since such a move now requires precise accounting of all allocated data before destructors are run. This commit adds a proper hook in libc.so.6 for both libdl.so and for libpthread.so, this ensures that shm-directory.c which uses freeit () to free memory is called properly. We also remove the nptl_freeres hook and fall back to using weak-ref-and-check idiom for a loaded libpthread.so, thus making this process similar for all DSOs. Lastly we follow best practice and use explicit free calls for both libdl.so and libpthread.so instead of the generic hook process which has undefined order. Tested on x86_64 with no regressions. Signed-off-by: DJ Delorie <dj@redhat.com> Signed-off-by: Carlos O'Donell <carlos@redhat.com>
2018-04-26Increase robustness of internal dlopen() by using RTLD_NOW [BZ #22766]Tulio Magno Quites Machado Filho
Prevent random runtime crashes due to missing symbols caused by mixed libnss_* versions. [BZ #22766] * include/dlfcn.h [__libc_dl_open]: Replace RTLD_LAZY with RTLD_NOW. * sysdeps/gnu/unwind-resume.c (__lib_gcc_s_init): Replace __libc_dlopen_mode() using RTLD_NOW with __libc_dlopen. * sysdeps/nptl/unwind-forcedunwind.c: Likewise. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2018-01-10nptl: Open libgcc.so with RTLD_NOW during pthread_cancel [BZ #22636]Florian Weimer
Disabling lazy binding reduces stack usage during unwinding. Note that RTLD_NOW only makes a difference if libgcc.so has not already been loaded, so this is only a partial fix. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* 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.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers
2015-01-05ARM: Consolidate with generic unwinder wrapper codeRoland McGrath
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers
2014-12-16Revert "Use pragmas rather than makefiles for necessary options for unwind ↵Roland McGrath
code." This reverts commit c324fcfe75c3976ae0b16943df00710e1d0d74f7.
2014-12-16Use pragmas rather than makefiles for necessary options for unwind code.Roland McGrath
2014-06-12Get rid of nptl/sysdeps/pthread/ subdirectoryRoland McGrath