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glibc/dlfcn
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Florian Weimer f4cba6ca1e dlfcn: Failures after dlmopen should not terminate process [BZ #15271] 
Commit 9e78f6f6e7 ("Implement
_dl_catch_error, _dl_signal_error in libc.so [BZ #16628]") has the
side effect that distinct namespaces, as created by dlmopen, now have
separate implementations of the rtld exception mechanism.  This means
that the call to _dl_catch_error from libdl in a secondary namespace
does not actually install an exception handler because the
thread-local variable catch_hook in the libc.so copy in the secondary
namespace is distinct from that of the base namepace.  As a result, a
dlsym/dlopen/... failure in a secondary namespace terminates the process
with a dynamic linker error because it looks to the exception handler
mechanism as if no handler has been installed.

Backport notes: GLRO (dl_catch_error) is replaced with
_dl_catch_error_ptr to preserve _rtld_global_ro layout.

(cherry picked from commit b2964eb1d9)
 		2021-06-09 17:15:00 +02:00
..
Makefile Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Versions
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bug-atexit1-lib.c
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bug-atexit1.c
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bug-atexit2-lib.c
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bug-atexit2.c
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bug-atexit3-lib.cc
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bug-atexit3.c
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bug-dl-leaf-lib-cb.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bug-dl-leaf-lib.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bug-dl-leaf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bug-dlopen1.c
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bug-dlsym1-lib1.c
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bug-dlsym1-lib2.c
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bug-dlsym1.c
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default.c
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defaultmod1.c
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defaultmod2.c
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dladdr.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dladdr1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlclose.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlerror.c dlfcn: Failures after dlmopen should not terminate process [BZ #15271] 2021-06-09 17:15:00 +02:00
dlfcn.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlfcn.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlfreeres.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlinfo.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlmopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlopenold.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlsym.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlvsym.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
errmsg1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
errmsg1mod.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
failtest.c
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failtestmod.c
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glreflib1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
glreflib2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
glreflib3.c
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glrefmain.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
modatexit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
modcxaatexit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
moddummy1.c
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moddummy2.c
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modstatic.c
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modstatic2.c
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modstatic3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
modstatic5.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sdladdr.c
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sdladdr1.c
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sdlclose.c
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sdlerror.c
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sdlfreeres.c
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sdlinfo.c
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sdlmopen.c
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sdlopen.c
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sdlsym.c
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sdlvsym.c
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tst-dladdr.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-dlinfo.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-rec-dlopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tstatexit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tstcxaatexit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tststatic.c
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tststatic2.c
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tststatic3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tststatic4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tststatic5.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00