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11b451c886
glibc/dlfcn
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Mark Wielaard 11b451c886 dlfcn: Guard __dlerror_main_freeres with __libc_once_get (once) [BZ# 24476] 
dlerror.c (__dlerror_main_freeres) will try to free resources which only
have been initialized when init () has been called. That function is
called when resources are needed using __libc_once (once, init) where
once is a __libc_once_define (static, once) in the dlerror.c file.
Trying to free those resources if init () hasn't been called will
produce errors under valgrind memcheck. So guard the freeing of those
resources using __libc_once_get (once) and make sure we have a valid
key. Also add a similar guard to __dlerror ().

	* dlfcn/dlerror.c (__dlerror_main_freeres): Guard using
	__libc_once_get (once) and static_bug == NULL.
	(__dlerror): Check we have a valid key, set result to static_buf
	otherwise.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2019-05-15 23:34:55 +02:00
..
bug-atexit1-lib.c [BZ #1158] 2005-09-28 00:14:50 +00:00
bug-atexit1.c Prefer https for Sourceware links 2017-11-16 11:49:26 +05:30
bug-atexit2-lib.c [BZ #1158] 2005-09-28 00:14:50 +00:00
bug-atexit2.c Prefer https for Sourceware links 2017-11-16 11:49:26 +05:30
bug-atexit3-lib.cc support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
bug-atexit3.c * dlfcn/Makefile: Add rules to build and run bug-atexit3. 2006-07-27 01:31:43 +00:00
bug-dl-leaf-lib-cb.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bug-dl-leaf-lib.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bug-dl-leaf.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bug-dlopen1.c Update. 2002-02-06 00:28:46 +00:00
bug-dlsym1-lib1.c (foo): Add prototype to avoid warning. 2002-08-23 08:52:49 +00:00
bug-dlsym1-lib2.c 2002-08-21 Roland McGrath <roland@redhat.com> 2002-08-21 23:03:46 +00:00
bug-dlsym1.c 2004-10-18 Roland McGrath <roland@redhat.com> 2004-10-18 18:53:53 +00:00
default.c Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
defaultmod1.c Update. 2003-08-15 03:58:56 +00:00
defaultmod2.c Update. 2003-08-15 03:58:56 +00:00
dladdr1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dladdr.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlclose.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlerror.c dlfcn: Guard __dlerror_main_freeres with __libc_once_get (once) [BZ# 24476] 2019-05-15 23:34:55 +02:00
dlfcn.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlfcn.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlfreeres.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlinfo.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlmopen.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlopen.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlopenold.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlsym.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlvsym.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
errmsg1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
errmsg1mod.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
failtest.c Add prototype for foo. 2000-12-27 19:58:36 +00:00
failtestmod.c Fix dlfcn/failtestmod.c warning. 2014-11-27 16:00:08 +00:00
glreflib1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
glreflib2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
glreflib3.c [BZ #4775, BZ #4776] 2007-07-12 18:17:11 +00:00
glrefmain.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Makefile Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
modatexit.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
modcxaatexit.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
moddummy1.c Fix recursive dlopen. 2015-01-21 01:51:10 -05:00
moddummy2.c Fix recursive dlopen. 2015-01-21 01:51:10 -05:00
modstatic2.c Remove --disable-versioning. 2013-09-04 15:25:42 +00:00
modstatic3.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
modstatic5.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
modstatic.c Update. 2001-12-28 16:43:13 +00:00
sdladdr1.c Update. 2004-10-18 23:17:46 +00:00
sdladdr.c Update. 2004-10-18 23:17:46 +00:00
sdlclose.c Update. 2004-10-18 23:17:46 +00:00
sdlerror.c Update. 2004-10-18 23:17:46 +00:00
sdlfreeres.c libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
sdlinfo.c Update. 2004-10-18 23:17:46 +00:00
sdlmopen.c Update. 2004-10-18 23:17:46 +00:00
sdlopen.c Update. 2004-10-18 23:17:46 +00:00
sdlsym.c Update. 2004-10-18 23:17:46 +00:00
sdlvsym.c Update. 2004-10-18 23:17:46 +00:00
tst-dladdr.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-dlinfo.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-rec-dlopen.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tstatexit.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tstcxaatexit.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tststatic2.c Convert dlfcn/tststatic2 to use test-skeleton. 2015-02-27 15:54:33 -08:00
tststatic3.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tststatic4.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tststatic5.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tststatic.c Convert dlfcn/tststatic to use test-skeleton. 2015-03-27 12:55:25 -07:00
Versions libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00