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authorJoseph Myers <joseph@codesourcery.com>2014-11-26 15:13:27 +0000
committerJoseph Myers <joseph@codesourcery.com>2014-11-26 15:13:27 +0000
commita6f3079bfb8355b07bdc5eb578e2e77ff306a778 (patch)
tree2030e4643f1acc9955b540cd71e035ecbadccee9 /sysdeps/unix/sysv/linux/arm
parent706688aaefdeb48e63519525f11108ce14844a26 (diff)
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Fix sysdeps/unix/sysv/linux/arm/libc-do-syscall.S warning.
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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm')
-rw-r--r--sysdeps/unix/sysv/linux/arm/libc-do-syscall.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S b/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S
index d42a94a560..78e997c627 100644
--- a/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S
+++ b/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S
@@ -15,6 +15,9 @@
    License along with the GNU C Library.  If not, see
    <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>
 
 /* Out-of-line syscall stub.  We expect the system call number in ip