Enable GCC stack protection (aka Propolice) for userland:

- It is opt-out for now so as to give it maximum testing, but it may be
  turned opt-in for stable branches depending on the consensus.  You
  can turn it off with WITHOUT_SSP.
- WITHOUT_SSP was previously used to disable the build of GNU libssp.
  It is harmless to steal the knob as SSP symbols have been provided
  by libc for a long time, GNU libssp should not have been much used.
- SSP is disabled in a few corners such as system bootstrap programs
  (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves.
- It should be safe to use -fstack-protector-all to build world, however
  libc will be automatically downgraded to -fstack-protector because it
  breaks rtld otherwise.
- This option is unavailable on ia64.

Enable GCC stack protection (aka Propolice) for kernel:
- It is opt-out for now so as to give it maximum testing.
- Do not compile your kernel with -fstack-protector-all, it won't work.

Submitted by:	Jeremie Le Hen <jeremie@le-hen.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index edfcb08..770f3ca 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -3,10 +3,7 @@
 # Part of a unified Makefile for building kernels.  This part contains all
 # of the definitions that need to be before %BEFORE_DEPEND.
 
-SRCCONF?=	/etc/src.conf
-.if exists(${SRCCONF})
-.include "${SRCCONF}"
-.endif
+.include <bsd.own.mk>
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel