From a6f3079bfb8355b07bdc5eb578e2e77ff306a778 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 26 Nov 2014 15:13:27 +0000 Subject: [PATCH] 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. --- ChangeLog | 3 +++ sysdeps/unix/sysv/linux/arm/libc-do-syscall.S | 3 +++ 2 files changed, 6 insertions(+) diff --git a/ChangeLog b/ChangeLog index 90a948b482..f43cb09c9f 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2014-11-26 Joseph Myers + * sysdeps/unix/sysv/linux/arm/libc-do-syscall.S (_FORTIFY_SOURCE): + Undefine. + [BZ #16619] [BZ #16740] * sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Use 1LL << 52 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 . */ +/* 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 /* Out-of-line syscall stub. We expect the system call number in ip -- 2.11.4.GIT