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0e7e69baa8
glibc/conform
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Joseph Myers 0e7e69baa8 Make linknamespace tests check only relevant libraries. 
This patch addresses one known caveat in the linknamespace tests: with
this patch they will now only look for definitions of symbols in
relevant libraries, meaning that librt and libpthread are not checked
for ISO C standards, XPG3 and XPG4.

In particular, this means that if __pthread_initialize_minimal is
somehow brought in for one of those standards, the definition from
libc-tls.o will be considered instead of that from libpthread, so
avoiding bringing in lots of other libpthread symbols.  This should
address some of the failures reported by Carlos in
<https://sourceware.org/ml/libc-alpha/2014-11/msg00882.html>, where
__pointer_chk_guard_local brought in __pthread_initialize_minimal.

Tested for x86_64.  The removal of one XFAIL for XPG4 actually shows
up a header bug (shm_open should not be declared for XPG4 - the
namespace issue was for symbols brought in by shm_open, which is no
longer found at all now librt isn't searched; I've filed bug 17663 for
the header bug, though it would show up eventually anyway in the
course of review of conform/ data against XPG4).

Committed.

	* conform/Makefile (linknamespace-symlist-stdlibs-base): New
	variable.
	(linknamespace-symlist-stdlibs-tests): Likewise.
	(tests-special): Append $(linknamespace-symlist-stdlibs-tests)
	instead of $(objpfx)symlist-stdlibs.
	(linknamespace-libs-isoc): New variable.
	(linknamespace-libs): Use $(linknamespace-libs-isoc).
	(linknamespace-libs-ISO): New variable.
	(linknamespace-libs-ISO99): Likewise.
	(linknamespace-libs-ISO11): Likewise.
	(linknamespace-libs-XPG3): Likewise.
	(linknamespace-libs-XPG4): Likewise.
	(linknamespace-libs-POSIX): Likewise.
	(linknamespace-libs-UNIX98): Likewise.
	(linknamespace-libs-XOPEN2K): Likewise.
	(linknamespace-libs-POSIX2008): Likewise.
	(linknamespace-libs-XOPEN2K8): Likewise.
	($(objpfx)symlist-stdlibs): Replace by
	$(linknamespace-symlist-stdlibs-tests).  Use
	$(linknamespace-libs-$*) as set of libraries.
	($(linknamespace-header-tests)): Update dependencies.  Use
	$(objpfx)symlist-stdlibs-$$std for --libsyms argument.
	(test-xfail-XPG4/sys/mman.h/linknamespace): Remove.
	* conform/linknamespace.pl: Remove comment about considering
	definitions of symbols from irrelevant libraries.
2014-11-29 01:46:56 +00:00
..
data conformtest: clean up POSIX expections for sys/utsname.h, sys/wait.h. 2014-10-14 17:00:11 +00:00
check-header-lists.sh conformtest: split up running of tests from makefile. 2014-03-07 03:23:34 +00:00
conformtest.pl Add tests for namespace for static linking. 2014-11-12 22:45:25 +00:00
GlibcConform.pm Add tests for namespace for static linking. 2014-11-12 22:45:25 +00:00
linknamespace.pl Make linknamespace tests check only relevant libraries. 2014-11-29 01:46:56 +00:00
list-header-symbols.pl Add tests for namespace for static linking. 2014-11-12 22:45:25 +00:00
Makefile Make linknamespace tests check only relevant libraries. 2014-11-29 01:46:56 +00:00