[OE-core] [PATCH 4/4] uninative-flags.inc: Build binutils-native as pie

[Richard Purdie]

Some distros (ubuntu 16.10, debian-testing) default to gcc configured with
--enable-default-pie (see gcc -v). This breaks e.g. prelink-native on a pie
default system if binutils-native was built on a system which is not pie default
We therefore enable pie unconditionally for native recipes where static libs are
used such as libiberty from binutils, for now, until our minimum distro set is
all default pie.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/conf/distro/include/uninative-flags.inc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/meta/conf/distro/include/uninative-flags.inc b/meta/conf/distro/include/uninative-flags.inc
index e9f82c3..b6a944e 100644
--- a/meta/conf/distro/include/uninative-flags.inc
+++ b/meta/conf/distro/include/uninative-flags.inc
@@ -7,3 +7,11 @@ BUILD_CXXFLAGS_append = " -D_GLIBCXX_USE_CXX11_ABI=0"
 # icu configure defaults to CXX11 if no -std= option is passed in CXXFLAGS
 # therefore pass one
 BUILD_CXXFLAGS_append_pn-icu-native = " -std=c++98"
+
+# Some distros (ubuntu 16.10, debian-testing) default to gcc configured with
+# --enable-default-pie (see gcc -v). This breaks e.g. prelink-native on a pie
+# default system if binutils-native was built on a system which is not pie default
+# We therefore enable pie unconditionally for native recipes where static libs are
+# used such as libiberty from binutils, for now, until our minimum distro set is
+# all default pie.
+BUILD_CFLAGS_append_pn-binutils-native = " -pie -fpie"
-- 
2.7.4