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[V3] distutils-base.bbclass: Do not use -pie with hardening

Message ID 20170602160150.6813-1-raj.khem@gmail.com
State Accepted
Commit 4b5d55228ed2565570d0e93cfea4efa8cbb789ea
Headers show

Commit Message

Khem Raj June 2, 2017, 4:01 p.m. UTC 
Fix build when PIE is turned on. It tries to build
.so file using -pie and -shared flags together because
its doing compile and link in same step CFLAGS and LDFLAGS
are combined and does not work, ending in errors e.g.

| /mnt/a/oe/build/tmp/work/cortexa7t2hf-neon-vfpv4-bec-linux-musleabi/python-pygpgme/0.3-r0/recipe-sysroot/usr/l
ib/Scrt1.o: In function `_start_c':
| /usr/src/debug/musl/1.1.16+gitAUTOINC+179766aa2e-r0/git/crt/crt1.c:17: undefined reference to `main'
| collect2: error: ld returned 1 exit status

This error while cryptic is due to the fact that we are
building a shared library but also pass -pie flag to the link
step after specify LDHSARED ( which is -shared linker flags )

we can not use -pie when doing shared libs. This is true for all the python
modules inheriting setup tools

Disable the pie flags thusly for all modules using setuptools since
this setting is done in setuptools makefiles which are then used
during module compiles

Signed-off-by: Khem Raj <raj.khem@gmail.com>

---
v1 -> v2
- Move change to distutils-base
V2 -> v3
- Fix a missing end quote

 meta/classes/distutils-base.bbclass | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.13.0

-- 
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Patch

diff --git a/meta/classes/distutils-base.bbclass b/meta/classes/distutils-base.bbclass
index 9f398d7051..d6137c4e42 100644
--- a/meta/classes/distutils-base.bbclass
+++ b/meta/classes/distutils-base.bbclass
@@ -2,3 +2,5 @@  DEPENDS  += "${@["${PYTHON_PN}-native ${PYTHON_PN}", ""][(d.getVar('PACKAGES') =
 RDEPENDS_${PN} += "${@['', '${PYTHON_PN}-core']['${CLASSOVERRIDE}' == 'class-target']}"
 
 inherit distutils-common-base pythonnative
+
+SECURITY_CFLAGS = "${SECURITY_NO_PIE_CFLAGS}"