toolchain: glibc: Enable --enable-bind-now

Enable --enable-bind-now when CONFIG_PKG_RELRO_FULL is set. This option
is activated by default. This will enable full RELRO protection.

Signed-off-by: Hauke Mehrtens <[email protected]>

toolchain/glibc/common.mk

@@ -63,6 +63,7 @@ GLIBC_CONFIGURE:= \
 		--$(if $(CONFIG_SOFT_FLOAT),without,with)-fp \
 		  $(if $(CONFIG_PKG_CC_STACKPROTECTOR_REGULAR),--enable-stack-protector=yes) \
 		  $(if $(CONFIG_PKG_CC_STACKPROTECTOR_STRONG),--enable-stack-protector=strong) \
+		  $(if $(CONFIG_PKG_RELRO_FULL),--enable-bind-now) \
 		--enable-kernel=5.4.0
 
 export libc_cv_ssp=no