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Fix sysdeps/unix/sysv/linux/arm/libc-do-syscall.S warning.

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This patch fixes a warning

../include/features.h:328:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]

seen when building for ARM.  This warning comes from libc-do-syscall.S
being built for nscd: the nscd build uses _FORTIFY_SOURCE, while .S
files aren't built with -O, and the combination produces a warning.
As _FORTIFY_SOURCE doesn't do anything for .S files, undefining it in
libc-do-syscall.S seems the simplest solution.

Tested for ARM.

	* sysdeps/unix/sysv/linux/arm/libc-do-syscall.S (_FORTIFY_SOURCE):
	Undefine.
This commit is contained in:
Joseph Myers 2014-11-26 15:13:27 +00:00
parent 706688aaef
commit a6f3079bfb
2 changed files with 6 additions and 0 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2014-11-26 Joseph Myers <joseph@codesourcery.com> 2014-11-26 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/arm/libc-do-syscall.S (_FORTIFY_SOURCE):
Undefine.
[BZ #16619] [BZ #16619]
[BZ #16740] [BZ #16740]
* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Use 1LL << 52 * sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Use 1LL << 52

3
sysdeps/unix/sysv/linux/arm/libc-do-syscall.S
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@ -15,6 +15,9 @@
License along with the GNU C Library. If not, see License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
/* When this file is built for inclusion in nscd, _FORTIFY_SOURCE is
defined but -O is not used, resulting in a warning from features.h. */
#undef _FORTIFY_SOURCE
#include <sysdep.h> #include <sysdep.h>
/* Out-of-line syscall stub. We expect the system call number in ip /* Out-of-line syscall stub. We expect the system call number in ip