string: Disable stack protector for memset in early static initialization

For ports that use the default memset, the compiler might generate early
calls before the stack protector is initialized (for instance, riscv
with -fstack-protector-all on _dl_aux_init).

Checked on riscv64-linux-gnu-rv64imafdc-lp64d.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

diff --git a/string/Makefile b/string/Makefile
index 3ba77e1b2f5e5306957d7d0a3e806ea45136a582..8f31fa49e621c0351a2ce26ca2f8ca9c0eb53f3f 100644 (file)
--- a/string/Makefile
+++ b/string/Makefile
@@ -270,6 +270,7 @@ CFLAGS-memcpy.c += $(no-stack-protector)
 CFLAGS-wordcopy.c += $(no-stack-protector)
 # Called during static initialization
 CFLAGS-strncmp.c += $(no-stack-protector)
+CFLAGS-memset.c += $(no-stack-protector)
 
 CFLAGS-argz-next.c += $(config-cflags-wno-ignored-attributes)
 CFLAGS-basename.c += $(config-cflags-wno-ignored-attributes)