gcc: musl comes with its own SSP, so use it instead of libssp

Signed-off-by: Steven Barth <steven@midlink.org>

SVN-Revision: 46071

toolchain/gcc/final/Makefile

@@ -16,6 +16,10 @@ ifneq ($(CONFIG_GCC_VERSION_4_5)$(CONFIG_GCC_VERSION_4_6),)
 	--with-libelf=$(TOPDIR)/staging_dir/host
 endif
 
+ifdef CONFIG_USE_MUSL
+  GCC_MAKE += gcc_cv_libc_provides_ssp=yes
+endif
+
 ifneq ($(CONFIG_SJLJ_EXCEPTIONS),)
   GCC_CONFIGURE += \
 	--enable-sjlj-exceptions

toolchain/gcc/patches/4.8-linaro/030-always-link-ssp-noshared.patch

+--- gcc-4.7.4.org/gcc/gcc.c
++++ gcc-4.7.4/gcc/gcc.c
+@@ -603,7 +603,7 @@
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector:}"
++#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared}"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
+ #endif