|author||Richard Purdie <firstname.lastname@example.org>||2015-05-29 14:16:50 +0100|
|committer||Richard Purdie <email@example.com>||2015-05-30 22:25:10 +0100|
security_flags: Add comment about what it does and who uses it
It was pointed out that people couldn't easily see who used this or why so add some comments about that. Signed-off-by: Richard Purdie <firstname.lastname@example.org>
1 files changed, 7 insertions, 0 deletions
diff --git a/meta/conf/distro/include/security_flags.inc b/meta/conf/distro/include/security_flags.inc
index 0ee38140ef..9608c7f069 100644
@@ -1,3 +1,10 @@
+# Setup extra CFLAGS and LDFLAGS which have 'security' benefits. These
+# don't work universally, there are recipes which can't use one, the other
+# or both so a blacklist is maintained here. The idea would be over
+# time to reduce this list to nothing.
+# From a Yocto Project perspective, this file is included and tested
+# in the DISTRO="poky-lsb" configuration.
SECURITY_CFLAGS ?= "-fstack-protector-all -pie -fpie -D_FORTIFY_SOURCE=2"
SECURITY_NO_PIE_CFLAGS ?= "-fstack-protector-all -D_FORTIFY_SOURCE=2"
SECURITY_LDFLAGS ?= "-Wl,-z,relro,-z,now"