[Buildroot] [git commit branch/2018.02.x] cifs-utils: unconditionally disable PIE
Peter Korsgaard
peter at korsgaard.com
Mon May 28 14:20:10 UTC 2018
commit: https://git.buildroot.net/buildroot/commit/?id=474f86150ff7ba99d51357ca0ff7500f574904f4
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2018.02.x
PIE support in Buildroot should be enabled via the global option
BR2_RELRO_FULL option, and not done on a per-package basis, therefore
PIE should unconditionally be disabled in the cifs-utils package.
This has the added side-effect that it works around a binutils bug on
SPARC causing the linker to segfault when PIE is enabled:
sparc-linux-gcc -Wall -Wextra -D_FORTIFY_SOURCE=2 -fpie -pie -Wl,-z,relro,-z,now -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -o mount.cifs mount.cifs.o mtab.o resolve_host.o util.o -lcap-ng
collect2: fatal error: ld terminated with signal 6 [Aborted], core dumped
This issue will reappear when we start testing BR2_RELRO_FULL in the
autobuilders, but in the mean time it avoids the problem.
Fixes:
http://autobuild.buildroot.net/results/a5342890f39bdccae1324e7d3dbe0eab1aad28e5/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
(cherry picked from commit 85f9d0893476911dc8757893a281b55d2dc06309)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
package/cifs-utils/cifs-utils.mk | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/package/cifs-utils/cifs-utils.mk b/package/cifs-utils/cifs-utils.mk
index 9044fdf83c..9343e3ea89 100644
--- a/package/cifs-utils/cifs-utils.mk
+++ b/package/cifs-utils/cifs-utils.mk
@@ -13,9 +13,9 @@ CIFS_UTILS_LICENSE_FILES = COPYING
CIFS_UTILS_AUTORECONF = YES
CIFS_UTILS_DEPENDENCIES = host-pkgconf
-ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
-CIFS_UTILS_CONF_OPTS += --disable-pie
-endif
+# Let's disable PIE unconditionally. We want PIE to be enabled only by
+# the global BR2_RELRO_FULL option.
+CIFS_UTILS_CONF_OPTS = --disable-pie
ifeq ($(BR2_PACKAGE_KEYUTILS),y)
CIFS_UTILS_DEPENDENCIES += keyutils
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