[OE-core] [PATCH V4 0/2] sstate_readonly: only allowed sstate-cache objects to be built (read-only sstate-cache)
Hongxu Jia
hongxu.jia at windriver.com
Fri Aug 29 06:43:37 UTC 2014
Changed in V4:
- Enable read-only sstate-cache by inheriting the bbclass
rather than by the SSTATECACHE_WHITELIST value is not null.
There will be cases where customers don't want to build
-anything- from source. In V3, So they would need to enter
a dummy value to get that behavior, and that would not be
intuitive.
Changed in V3:
- remove bitbake patch, which was sent to bitbake-devel
- rebase 'bbclass/sstate' patch, which was conflicted with
'sstate: Add extra intercept functions' patch in master-next
Changed in V2:
- add hook SSTATE_CHECK_FUNCTIONS for sstate checking, and
add a new bbclass/sstate_readonly, rather than directly
modify bbclass/sstate
- terminate build safely while RunQueueExecuteScenequeue
init failed, the previous bb.msg.fatal is too hack.
Test Steps:
1) Prepare an existed sstate_cache with cache directory "Sstate_Cache_Dir"
It contained db-native sstate_cache.
2) Enable read-only sstate-cache by inheriting, and assign SSTATE_DIR
with Sstate_Cache_Dir, vim local.conf
...
INHERIT += 'sstate_readonly'
SSTATE_DIR = "Sstate_Cache_Dir"
...
3) bitbake db-native
4) tweak db's do_configure task by adding comments
--- a/meta/recipes-support/db/db_6.0.30.bb
+++ b/meta/recipes-support/db/db_6.0.30.bb
@@ -82,6 +82,7 @@ do_configure() {
gnu-configize --force ${S}
export STRIP="true"
oe_runconf
+ echo "hello"
}
5) build db-native and there is a build failure
$ bitbake db-native
...
ERROR: Read-only sstate-cache is enabled, the build of
"db-native"
did not come from sstate-cache. Only the recipe listed in
SSTATECACHE_WHITELIST is allowed to build from source
ERROR: Hash validation failed in RunQueueExecuteScenequeue Function failed: sstate_readonly_check
...
6) clean db-native failed
$ bitbake db-native -ccleansstate
...
ERROR: Read-only sstate-cache is enabled, the clean of
db-native is not allowed. Only the recipe listed in
SSTATECACHE_WHITELIST is allowed to clean sstate-cache
...
$ bitbake db-native -ccleanall
...
ERROR: Read-only sstate-cache is enabled, the clean of
db-native is not allowed. Only the recipe listed in
SSTATECACHE_WHITELIST is allowed to clean sstate-cache
...
7) Add db-native to SSTATECACHE_WHITELIST
vim local.conf
...
SSTATECACHE_WHITELIST = 'db-native'
...
8) build/clean db-native succee
$ bitbake db-native
$ bitbake db-native -ccleansstate
$ bitbake db-native -ccleanall
//Hongxu
The following changes since commit 669c07d6022174d01fe5a95b7b0faa9ef86da1e2:
bitbake: build/data: Write out more complete python run files (2014-08-28 15:12:45 +0100)
are available in the git repository at:
git://git.pokylinux.org/poky-contrib hongxu/readonly-sstatecache
http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=hongxu/readonly-sstatecache
Hongxu Jia (2):
bbclass/sstate: add hook SSTATE_CHECK_FUNCTIONS for sstate checking
bbclass/sstate_readonly: only allowed sstate-cache objects to be built
(read-only sstate-cache)
meta/classes/sstate.bbclass | 26 ++++++++++++++++++
meta/classes/sstate_readonly.bbclass | 53 ++++++++++++++++++++++++++++++++++++
2 files changed, 79 insertions(+)
create mode 100644 meta/classes/sstate_readonly.bbclass
--
1.9.1
More information about the Openembedded-core
mailing list