diff options
| author |   Alexander Kanavin <alex.kanavin@gmail.com> | 2024-03-18 15:52:18 +0100 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2024-03-21 12:18:54 +0000 |
| commit | becf88c2250a47102c8d36ad8b40839e0bfa9137 (patch) | |
| tree | 350b955dfde7d4cde2722f3508224226de87513c | |
| parent | 0a33b560233b983456178541603ab96fea22238b (diff) | |
| download | bitbake-contrib-becf88c2250a47102c8d36ad8b40839e0bfa9137.tar.gz | |
bitbake: improve descriptions of '-S printdiff'
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | doc/bitbake-user-manual/bitbake-user-manual-execution.rst | 7 | ||||
| -rwxr-xr-x | lib/bb/main.py | 4 |
2 files changed, 7 insertions, 4 deletions
diff --git a/doc/bitbake-user-manual/bitbake-user-manual-execution.rst b/doc/bitbake-user-manual/bitbake-user-manual-execution.rst index 4fa3ca4b5..d58fbb32e 100644 --- a/doc/bitbake-user-manual/bitbake-user-manual-execution.rst +++ b/doc/bitbake-user-manual/bitbake-user-manual-execution.rst @@ -586,10 +586,11 @@ or possibly those defined in the metadata/signature handler itself. The simplest parameter to pass is "none", which causes a set of signature information to be written out into ``STAMPS_DIR`` corresponding to the targets specified. The other currently available parameter is -"printdiff", which causes BitBake to try to establish the closest +"printdiff", which causes BitBake to try to establish the most recent signature match it can (e.g. in the sstate cache) and then run -``bitbake-diffsigs`` over the matches to determine the stamps and delta -where these two stamp trees diverge. +compare the matched signatures to determine the stamps and delta +where these two stamp trees diverge. This can be used to determine why +tasks need to be re-run in situations where that is not expected. .. note:: diff --git a/lib/bb/main.py b/lib/bb/main.py index 92d8dc029..bca8ebfa0 100755 --- a/lib/bb/main.py +++ b/lib/bb/main.py @@ -217,7 +217,9 @@ def create_bitbake_parser(): "execution. The SIGNATURE_HANDLER parameter is passed to the " "handler. Two common values are none and printdiff but the handler " "may define more/less. none means only dump the signature, printdiff" - " means compare the dumped signature with the cached one.") + " means recursively compare the dumped signature with the most recent" + " one in a local build or sstate cache (can be used to find out why tasks re-run" + " when that is not expected)") exec_group.add_argument("--revisions-changed", action="store_true", help="Set the exit code depending on whether upstream floating " |