Bug 2013

In my work-in-progress environment commented out lines in the recipe causes bitbake to hang:

For example this change in my local tree causes bitbake to hang

diff --git a/meta/recipes-devtools/gcc/libgcc_4.6.bb b/meta/recipes-devtools/gcc/libgcc_4.6.bb
index 5048fd9..ad45936 100644
--- a/meta/recipes-devtools/gcc/libgcc_4.6.bb
+++ b/meta/recipes-devtools/gcc/libgcc_4.6.bb
@@ -44,10 +44,19 @@ do_install () {
        chown -R root:root ${D}
        chmod +x ${D}${base_libdir}/libgcc_s.so.*
 
+#      for ml in ${MULTILIB_VARIANTS}
+#      do
+#              set -x
+#              ml_tune=${@d.getVar('DEFAULTTUNE_virtclass-multilib-${ml}', True)}
+#              ml_baselib=${@d.getVar('BASE_LIB_tune-${ml_tune}', True)}
+#              ml_tune_features=${@d.getVar('TUNE_FEATURES_tune-${ml_tune}', True)}
+#              ml_arch=
+#              for feature in ${ml_tune_features}
+#              do
+#                      ml_arch="${ml_arch} ${@d.getVar('TUNE_FEATURE_ARCH-${feature}', True)}"
+#              ln -s /usr/${ml_baselib}/${ml_feature_arch}-pokyml${ml}-linux/${BINV}/ ${D}${libdir}/${TARGET_SYS}/${BINV}/32
+#      done
+       ln -s /usr/${ml_baselib}/${ml_feature_arch}-pokyml${ml}-linux/${BINV}/ ${D}${libdir}/${TARGET_SYS}/${BINV}/32
 }


Richard Suggested trying out these fixes From here: http://lists.linuxtogo.org/pipermail/bitbake-devel/2012-February/thread.html

[bitbake-devel] [PATCHv2 0/2] Resolve parsing hang issues   Christopher Larson
[bitbake-devel] [PATCH 1/2] cooker: roll our own process pool   Christopher Larson
[bitbake-devel] [PATCH 2/2] knotty: shut down more cleanly   Christopher Larson 



And they resolve the bitbake hang by giving out this error:


Loaded 1619 entries from dependency cache.
NOTE: Error expanding variable do_install                                                                            | ETA:  --:--:--
ERROR: Command execution failed: Exited with 1

Summary: There were 0 ERROR messages shown, returning a non-zero exit code.



And other Hack which richard suggested was:




--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@@ -1477,8 -1477,8 +1477,8 @@@ class CookerParser(object)
                                              self.virtuals, self.error,
                                              self.total)
              bb.event.fire(event, self.cfgdata)
--        else:
--            self.pool.terminate()
++#        else:
++#            self.pool.terminate()
          self.pool.join()
  
          sync = threading.Thread(target=self.bb_cache.sync)




This hack gives error like this:





$ bitbake gcc -f -c gcc_multilib_setup
Loading cache: 100% |################################################################################################| ETA:  00:00:00
Loaded 1619 entries from dependency cache.
NOTE: Error expanding variable do_install                                                                            | ETA:  --:--:--
ERROR: Failure expanding variable do_install, expression was 	target=`echo x86_64-poky-linux | sed -e s#-nativesdk##`

	# Install libgcc from our gcc-cross saved data
	install -d /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/lib64 /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64
	cp -fpPR /srv/home/nitin/builds/build-multilib/tmp/sysroots/x86_64-linux/usr/include/gcc-build-internal-$target/* /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image

	# Move libgcc_s into /lib
	mkdir -p /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/lib64
	if [ -f /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64/nof/libgcc_s.so ]; then
		mv /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64/nof/libgcc* /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/lib64
	else
		mv /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64/libgcc* /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/lib64 || true
	fi

	chown -R root:root /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image
	chmod +x /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/lib64/libgcc_s.so.*

#	for ml in lib32
#	do
#		set -x
# 		ml_tune=${@d.getVar('DEFAULTTUNE_virtclass-multilib-${ml}', True)}
# 		ml_baselib=${@d.getVar('BASE_LIB_tune-${ml_tune}', True)}
# 		ml_tune_features=${@d.getVar('TUNE_FEATURES_tune-${ml_tune}', True)}
#		ml_arch=
#		for feature in ${ml_tune_features}
#		do
# 			ml_arch="${ml_arch} ${@d.getVar('TUNE_FEATURE_ARCH-${feature}', True)}"
#		ln -s /usr/${ml_baselib}/${ml_feature_arch}-pokyml${ml}-linux/4.6.3/ /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64/x86_64-poky-linux/4.6.3/32
#	done
	ln -s /usr/${ml_baselib}/${ml_feature_arch}-pokyml${ml}-linux/4.6.3/ /srv/home/nitin/builds/build-multilib/tmp/work/x86_64-poky-linux/libgcc-4.6.2+svnr181430-r23/image/usr/lib64/x86_64-poky-linux/4.6.3/32
 which triggered exception SyntaxError: EOL while scanning string literal (do_install, line 1)
ERROR: Command execution failed: Exited with 1

Summary: There was 1 ERROR message shown, returning a non-zero exit code.






So the Christopher Larson's commits fix the issue, but the error reporting is not enough to debug the issue. Bitbake need to print more information about error so that end user can pinpoint the error location easily.