Fix -Wundef warnings in elf/tst-execstack.c.

To remove -Wno-error=undef, we need to fix the remaining cases where
there are -Wundef warnings in the testsuite.  One of those places is
in elf/tst-execstack.c.

tst-execstack.c tests USE_PTHREADS with #if.  nptl/tst-execstack.c
defines USE_PTHREADS to 1 before including ../elf/tst-execstack.c,
while elf/tst-execstack.c, when compiled directly, leaves it
undefined.

This patch adds a setting of CPPFLAGS-tst-execstack.c to
elf/Makefile.  An alternative approach would be to rename
tst-execstack.c to tst-execstack-main.c and have two different
tst-execstack.c files include it, each with an appropriate
USE_PTHREADS #define.

Tested for x86_64.

	* elf/Makefile [$(have-z-execstack) = yes]
	(CPPFLAGS-tst-execstack.c): New variable.
This commit is contained in:
Joseph Myers 2015-08-19 00:51:07 +00:00
parent ccb729df47
commit 9536661c6e
2 changed files with 4 additions and 0 deletions

View File

@ -1,5 +1,8 @@
2015-08-19 Joseph Myers <joseph@codesourcery.com>
* elf/Makefile [$(have-z-execstack) = yes]
(CPPFLAGS-tst-execstack.c): New variable.
* login/tst-utmp.c [_HAVE_UT_TYPE || defined UTMPX]: Change
conditional to [defined UTMPX || _HAVE_UT_TYPE].
[_HAVE_UT_TV || defined UTMPX]: Change conditional to [defined

View File

@ -874,6 +874,7 @@ endif
ifeq ($(have-z-execstack),yes)
$(objpfx)tst-execstack: $(libdl)
$(objpfx)tst-execstack.out: $(objpfx)tst-execstack-mod.so
CPPFLAGS-tst-execstack.c = -DUSE_PTHREADS=0
LDFLAGS-tst-execstack = -Wl,-z,noexecstack
LDFLAGS-tst-execstack-mod = -Wl,-z,execstack