glibc/conform
Joseph Myers 9acacaa02f Fix h_errno namespace (bug 18520).
The 2008 edition of POSIX removed h_errno, but some functions still
bring in references to the h_errno external symbol.  As this symbol is
not a part of the public ABI (only __h_errno_location is), this patch
fixes this by renaming the GLIBC_PRIVATE TLS symbol to __h_errno.

Tested for x86_64 and x86 (testsuite, and comparison of installed
shared libraries).  Disassembly of all shared libraries using h_errno
changes because of the renaming (and changes to associated TLS / GOT
offsets in some cases); disassembly of libpthread on x86_64 changes
more substantially because the enlargement of .dynsym affects
subsequent addresses.

	[BZ #18520]
	* inet/herrno.c (h_errno): Rename to __h_errno.
	(__libc_h_errno): Define as alias of __h_errno not h_errno.
	* include/netdb.h [IS_IN_LIB && !IS_IN (libc)] (h_errno): Define
	to __h_errno instead of h_errno.
	* nptl/herrno.c (h_errno): Rename to __h_errno.
	(__h_errno_location): Refer to __h_errno not h_errno.
	* resolv/Versions (h_errno): Rename to __h_errno.
	* conform/Makefile (test-xfail-XOPEN2K8/grp.h/linknamespace):
	Remove variable.
	(test-xfail-XOPEN2K8/pwd.h/linknamespace): Likewise.
2015-06-12 10:10:18 +00:00
..
data struct stat is not posix conform 2015-05-26 22:27:24 +05:30
check-header-lists.sh Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
conformtest.pl Add tests for namespace for static linking. 2014-11-12 22:45:25 +00:00
GlibcConform.pm conformtest: use proper _POSIX_C_SOURCE value for POSIX. 2015-05-20 23:14:53 +00:00
linknamespace.pl linknamespace: whitelist re_syntax_options. 2015-05-21 16:24:24 +00:00
list-header-symbols.pl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Makefile Fix h_errno namespace (bug 18520). 2015-06-12 10:10:18 +00:00