4031 2013-03-15 10:19:56 +0000 utils.py: BB_ENV_WHITELIST doesn't work well 2013-04-10 06:12:08 +0000 1 1 7 Build System, Metadata & Runtime BitBake bitbake 1.4 x86 Multiple VERIFIED FIXED Medium normal 1.4 M6 1 liezhi.yang liezhi.yang ning.zhang poky.bs.watcher poky.watcher richard.purdie sgw --- --- --- oldest_to_newest 30750 0 liezhi.yang 2013-03-15 10:19:56 +0000 The BB_ENV_WHITELIST doesn't work well and flushes BB_ENV_EXTRAWHITE, here is an example: $ export BB_ENV_WHITELIST $ export BB_NUMBER_THREADS=10 (or other value) Edit conf/local.conf, change "BB_NUMBER_THREADS =" to "BB_NUMBER_THREADS ?=" $ bitbake -e | grep '^BB_NUMBER_THREADS =' we will notice that BB_NUMBER_THREADS' value doesn't change, though BB_NUMBER_THREADS in both BB_ENV_WHITELIST and BB_ENV_EXTRAWHITE. This is because in bitbake/lib/bb/utils.py: def approved_variables(): """ Determine and return the list of whitelisted variables which are approved to remain in the envrionment. """ approved = [] if 'BB_ENV_WHITELIST' in os.environ: approved = os.environ['BB_ENV_WHITELIST'].split() else: approved = preserved_envvars() if 'BB_ENV_EXTRAWHITE' in os.environ: approved.extend(os.environ['BB_ENV_EXTRAWHITE'].split()) return approved The "approved" doesn't include BB_ENV_WHITELIST or BB_ENV_EXTRAWHITE when BB_ENV_WHITELIST is set (they are from preserved_envvars()), so the BB_ENV_WHITELIST and BB_ENV_EXTRAWHITE will removed from the env, and when the approved_variables () function is called again by cooker.py, their value will be None, the vars inside them will be removed from the env. Add BB_ENV_WHITELIST and BB_ENV_EXTRAWHITE to the "approved" would fix the problem. I will send a patch sooner. 30883 1 liezhi.yang 2013-03-20 06:18:11 +0000 Merged into master: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=ee416ad6f4b0209f7ad7d54467e0d7d5e097dd2a 31789 2 ning.zhang 2013-04-10 06:12:08 +0000 Verified env: poky: bdca49274173153b1b0a72887de6321b4756b684 branch: 1.4_M5 Verified steps: 1. setup poky env. 2. input below cli: export BB_ENV_WHITELIST export BB_NUMBER_THREADS=10 3. modify conf/local.conf, modify 'BB_NUMBER_THREADS = "4"' to 'BB_NUMBER_THREADS ?= ""' 4. execute: bitbake -e | grep '^BB_NUMBER_THREADS=' log: builder@pek-yocto-build1:/buildarea3/zn/20130410$ export BB_ENV_WHITELIST builder@pek-yocto-build1:/buildarea3/zn/20130410$ export BB_NUMBER_THREADS=10 builder@pek-yocto-build1:/buildarea3/zn/20130410$ echo $BB_ENV_WHITELIST builder@pek-yocto-build1:/buildarea3/zn/20130410$ builder@pek-yocto-build1:/buildarea3/zn/20130410$ echo $BB_NUMBER_THREADS 10 builder@pek-yocto-build1:/buildarea3/zn/20130410$ bitbake -e | grep '^BB_NUMBER_THREADS=' BB_NUMBER_THREADS="10" builder@pek-yocto-build1:/buildarea3/zn/20130410$