freebsd-nq/libexec/rtld-elf
Bryan Drewery 1c1093d6d6 Fix dlsym(RTLD_NEXT) handling to only return the next library in last library cases.
The root of the problem here is that TAILQ_FOREACH_FROM will default to
the head of the list if passed NULL, which will be the case if there are
no libraries loaded after this one.  Thus all libraries, including the
current, were iterated in that case rather than none.

This was broken in r294373.

Reviewed by:	markj (earlier version), cem, kib, ngie
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D7216
2016-07-15 19:07:00 +00:00
..
aarch64 Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and 2016-01-20 07:21:33 +00:00
amd64 Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and 2016-01-20 07:21:33 +00:00
arm rtld-elf: use NULL instead of zero for pointers. 2016-04-19 19:03:55 +00:00
i386 Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and 2016-01-20 07:21:33 +00:00
mips rtld-elf: use NULL instead of zero for pointers. 2016-04-19 19:03:55 +00:00
powerpc rtld-elf: use NULL instead of zero for pointers. 2016-04-19 19:03:55 +00:00
powerpc64 rtld-elf: use NULL instead of zero for pointers. 2016-04-19 19:03:55 +00:00
riscv Follow r293066 adding a generalized exec hook for RISC-V as well. 2016-01-23 11:46:52 +00:00
sparc64 Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and 2016-01-20 07:21:33 +00:00
tests Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed 2016-05-04 23:20:53 +00:00
debug.c Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and 2016-01-20 07:21:33 +00:00
debug.h Remove historical GNUC test 2015-05-06 15:29:11 +00:00
libmap.c Rather than using the #define for path names, indirect through a char * 2015-10-31 04:39:55 +00:00
libmap.h Make the directory mapping functionality, which was previously only 2013-09-21 21:03:52 +00:00
Makefile Fix race for incrementally rebuilding VERSION_MAP. 2016-07-03 17:28:39 +00:00
Makefile.depend new depends 2015-06-16 23:37:19 +00:00
malloc.c libexec: minor spelling fixes in comments. 2016-05-01 19:39:23 +00:00
map_object.c Fix handling of DT_TEXTREL for an object with more than one read-only 2016-03-02 16:36:24 +00:00
paths.h Convert casperd(8) daemon to the libcasper. 2016-02-25 18:23:40 +00:00
rtld_lock.c Change compiler setting to make default visibility of the symbols for 2015-03-29 18:53:21 +00:00
rtld_lock.h Change compiler setting to make default visibility of the symbols for 2015-03-29 18:53:21 +00:00
rtld_printf.c Add the LD_LIBRARY_PATH_FDS environmental variable. 2014-06-20 17:08:32 +00:00
rtld_printf.h Add the LD_LIBRARY_PATH_FDS environmental variable. 2014-06-20 17:08:32 +00:00
rtld_tls.h Change compiler setting to make default visibility of the symbols for 2015-03-29 18:53:21 +00:00
rtld.1 mdoc: remove superfluous paragraph macros. 2014-06-23 18:40:21 +00:00
rtld.c Fix dlsym(RTLD_NEXT) handling to only return the next library in last library cases. 2016-07-15 19:07:00 +00:00
rtld.h Fix handling of DT_TEXTREL for an object with more than one read-only 2016-03-02 16:36:24 +00:00
Symbol.map Add rtld private interface for dso to detect dynamic loading 2015-01-03 18:09:53 +00:00
xmalloc.c Increase alignment to size of pointer if the alignment is too small. 2014-02-22 11:06:48 +00:00