u-boot.git/tools/buildman/builder.py, branch v2016.07

buildman: allow more incremental building

2016-05-17T15:54:43+00:00

One use-case for buildman is to continually run it interactively after
each small step in a large refactoring operation. This gives more
immediate feedback than making a number of commits and then going back and
testing them. For this to work well, buildman needs to be extremely fast.
At present, a couple issues prevent it being as fast as it could be:

1) Each time buildman runs "make %_defconfig", it runs "make mrproper"
first. This throws away all previous build results, requiring a
from-scratch build. Optionally avoiding this would speed up the build, at
the cost of potentially causing or missing some build issues.

2) A build tree is created per thread rather than per board. When a thread
switches between building different boards, this often causes many files
to be rebuilt due to changing config options. Using a separate build tree
for each board would avoid this. This does put more strain on the system's
disk cache, but it is worth it on my system at least.

This commit adds two command-line options to implement the changes
described above; -I ("--incremental") turns of "make mrproper" and -P
("--per-board-out-dir") creats a build directory per board rather than per
thread.

Tested:

    ./tools/buildman/buildman.py tegra
    ./tools/buildman/buildman.py -I -P tegra
    ./tools/buildman/buildman.py -b tegra_dev tegra
    ./tools/buildman/buildman.py -b tegra_dev -I -P tegra

... each once after deleting the buildman result/work directory, and once
"incrementally" after a previous identical invocation.

Signed-off-by: Stephen Warren 
Reviewed-by: Tom Rini 
Acked-by: Simon Glass  # v1
Tested-by: Simon Glass  # v1
Acked-by: Simon Glass

buildman: Improve the config comparison feature

2015-09-09T13:48:03+00:00

At present buildman can compare configurations between commits but the
feature is less useful than it could be. There is no summary by architecture
and changes are not reported on a per-board basis.

Correct these deficiencies so that it is possible to see exactly what is
changing for any number of boards.

Note that 'buildman -b  -C' is recommended for any build where you
will be comparing configuration. Without -C the correct configuration will
not be reported since changes will often not be picked up.

Reviewed-by: Joe Hershberger 
Signed-off-by: Simon Glass

buildman: Allow comparison of build configuration

2015-04-18T22:24:25+00:00

It is useful to be able to see CONFIG changes made by commits. Add this
feature to buildman using the -K flag so that all CONFIG changes are
reported.

The CONFIG options exist in a number of files. Each is reported
individually as well as a summary that covers all files. The output
shows three parts: green for additions, red for removals and yellow for
changes.

Signed-off-by: Simon Glass

buildman: Show 'make' command line when -V is used

2015-04-18T22:24:24+00:00

When a verbose build it selected, show the make command before the output of
that command.

Signed-off-by: Simon Glass

buildman: Add a space before the list of boards

2015-03-05T23:14:32+00:00

Tweak the output slightly so we don't get things like:

   - board1 board2+  board3 board4

There should be a space before the '+'.

Signed-off-by: Simon Glass

buildman: Add an option to write the full build output

2015-01-15T05:16:54+00:00

Normally buildman runs with 'make -s' meaning that only errors and warnings
appear in the log file. Add a -V option to run make in verbose mode, and
with V=1, causing a full build log to be created.

Signed-off-by: Simon Glass

buildman: Add an option to use the full tool chain path

2015-01-15T05:16:53+00:00

In some cases there may be multiple toolchains with the same name in the
path. Provide an option to use the full path in the CROSS_COMPILE
environment variable.

Note: Wolfgang mentioned that this is dangerous since in some cases there
may be other tools on the path that are needed. So this is set up as an
option, not the default. I will need test confirmation (i.e. that this
commit fixes a real problem) before merging it.

Signed-off-by: Simon Glass 
Suggested-by: Steve Rae

buildman: Add an option to flatten output directory trees

2015-01-15T05:16:52+00:00

When building current source for a single board, buildman puts the output
in /current/current/. Add an option to make it use
/ instead. This removes the unnecessary directories
in that case, controlled by the --no-subdirs/-N option.

Suggested-by: Tom Rini 
Signed-off-by: Simon Glass

buildman: Don't prune output space for 'current source' build

2015-01-15T05:16:52+00:00

This is not needed since we always do a full (non-incremental) build. Also
it might be dangerous since it will try to delete everything below the
base directory.

Fix this potentially nasty bug.

Signed-off-by: Simon Glass

buildman: Fix repeating board list with -l

2014-11-27T03:25:40+00:00

Ensure that we don't print duplicate board names when -l is used.

Signed-off-by: Simon Glass 
Reported-by: Albert Aribaud