u-boot/tools/buildman/control.py
Simon Glass a8a0141bc2 buildman: Incorporate the genboardscfg.py tool
Bring this tool into buildman, so we don't have to run it separately. The
board.cfg file is still produced as part of the build, to save time when
doing another build in the same working directory. If it is out of date
with respect to the Kconfig, it is updated.

Time to regenerate on a recent single-thread machine is 4.6s (1.3s on a
32-thread machine), so we do need some sort of cache if we want buildman
to be useful on incremental builds. We could use Python's pickle format
but:

- it seems useful to allow boards.cfg to be regenerated, at least for a
  while, in case other tools use it
- it is possible to grep the file easily, e.g. to find boards which use
  a particular SoC (similar to 'buildman -nv <soc>'

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
2022-08-05 11:47:56 -04:00

381 lines
15 KiB
Python

# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2013 The Chromium OS Authors.
#
import multiprocessing
import os
import shutil
import subprocess
import sys
from buildman import boards
from buildman import bsettings
from buildman import cfgutil
from buildman import toolchain
from buildman.builder import Builder
from patman import command
from patman import gitutil
from patman import patchstream
from patman import terminal
from patman import tools
from patman.terminal import tprint
def GetPlural(count):
"""Returns a plural 's' if count is not 1"""
return 's' if count != 1 else ''
def GetActionSummary(is_summary, commits, selected, options):
"""Return a string summarising the intended action.
Returns:
Summary string.
"""
if commits:
count = len(commits)
count = (count + options.step - 1) // options.step
commit_str = '%d commit%s' % (count, GetPlural(count))
else:
commit_str = 'current source'
str = '%s %s for %d boards' % (
'Summary of' if is_summary else 'Building', commit_str,
len(selected))
str += ' (%d thread%s, %d job%s per thread)' % (options.threads,
GetPlural(options.threads), options.jobs, GetPlural(options.jobs))
return str
def ShowActions(series, why_selected, boards_selected, builder, options,
board_warnings):
"""Display a list of actions that we would take, if not a dry run.
Args:
series: Series object
why_selected: Dictionary where each key is a buildman argument
provided by the user, and the value is the list of boards
brought in by that argument. For example, 'arm' might bring
in 400 boards, so in this case the key would be 'arm' and
the value would be a list of board names.
boards_selected: Dict of selected boards, key is target name,
value is Board object
builder: The builder that will be used to build the commits
options: Command line options object
board_warnings: List of warnings obtained from board selected
"""
col = terminal.Color()
print('Dry run, so not doing much. But I would do this:')
print()
if series:
commits = series.commits
else:
commits = None
print(GetActionSummary(False, commits, boards_selected,
options))
print('Build directory: %s' % builder.base_dir)
if commits:
for upto in range(0, len(series.commits), options.step):
commit = series.commits[upto]
print(' ', col.build(col.YELLOW, commit.hash[:8], bright=False), end=' ')
print(commit.subject)
print()
for arg in why_selected:
if arg != 'all':
print(arg, ': %d boards' % len(why_selected[arg]))
if options.verbose:
print(' %s' % ' '.join(why_selected[arg]))
print(('Total boards to build for each commit: %d\n' %
len(why_selected['all'])))
if board_warnings:
for warning in board_warnings:
print(col.build(col.YELLOW, warning))
def ShowToolchainPrefix(brds, toolchains):
"""Show information about a the tool chain used by one or more boards
The function checks that all boards use the same toolchain, then prints
the correct value for CROSS_COMPILE.
Args:
boards: Boards object containing selected boards
toolchains: Toolchains object containing available toolchains
Return:
None on success, string error message otherwise
"""
board_selected = brds.get_selected_dict()
tc_set = set()
for brd in board_selected.values():
tc_set.add(toolchains.Select(brd.arch))
if len(tc_set) != 1:
return 'Supplied boards must share one toolchain'
return False
tc = tc_set.pop()
print(tc.GetEnvArgs(toolchain.VAR_CROSS_COMPILE))
return None
def DoBuildman(options, args, toolchains=None, make_func=None, brds=None,
clean_dir=False, test_thread_exceptions=False):
"""The main control code for buildman
Args:
options: Command line options object
args: Command line arguments (list of strings)
toolchains: Toolchains to use - this should be a Toolchains()
object. If None, then it will be created and scanned
make_func: Make function to use for the builder. This is called
to execute 'make'. If this is None, the normal function
will be used, which calls the 'make' tool with suitable
arguments. This setting is useful for tests.
brds: Boards() object to use, containing a list of available
boards. If this is None it will be created and scanned.
clean_dir: Used for tests only, indicates that the existing output_dir
should be removed before starting the build
test_thread_exceptions: Uses for tests only, True to make the threads
raise an exception instead of reporting their result. This simulates
a failure in the code somewhere
"""
global builder
if options.full_help:
tools.print_full_help(
os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])), 'README')
)
return 0
gitutil.setup()
col = terminal.Color()
options.git_dir = os.path.join(options.git, '.git')
no_toolchains = toolchains is None
if no_toolchains:
toolchains = toolchain.Toolchains(options.override_toolchain)
if options.fetch_arch:
if options.fetch_arch == 'list':
sorted_list = toolchains.ListArchs()
print(col.build(col.BLUE, 'Available architectures: %s\n' %
' '.join(sorted_list)))
return 0
else:
fetch_arch = options.fetch_arch
if fetch_arch == 'all':
fetch_arch = ','.join(toolchains.ListArchs())
print(col.build(col.CYAN, '\nDownloading toolchains: %s' %
fetch_arch))
for arch in fetch_arch.split(','):
print()
ret = toolchains.FetchAndInstall(arch)
if ret:
return ret
return 0
if no_toolchains:
toolchains.GetSettings()
toolchains.Scan(options.list_tool_chains and options.verbose)
if options.list_tool_chains:
toolchains.List()
print()
return 0
if not options.output_dir:
if options.work_in_output:
sys.exit(col.build(col.RED, '-w requires that you specify -o'))
options.output_dir = '..'
# Work out what subset of the boards we are building
if not brds:
if not os.path.exists(options.output_dir):
os.makedirs(options.output_dir)
board_file = os.path.join(options.output_dir, 'boards.cfg')
brds = boards.Boards()
brds.ensure_board_list(board_file,
options.threads or multiprocessing.cpu_count(),
force=options.regen_board_list,
quiet=not options.verbose)
if options.regen_board_list:
return 0
brds.read_boards(board_file)
exclude = []
if options.exclude:
for arg in options.exclude:
exclude += arg.split(',')
if options.boards:
requested_boards = []
for b in options.boards:
requested_boards += b.split(',')
else:
requested_boards = None
why_selected, board_warnings = brds.select_boards(args, exclude,
requested_boards)
selected = brds.get_selected()
if not len(selected):
sys.exit(col.build(col.RED, 'No matching boards found'))
if options.print_prefix:
err = ShowToolchainPrefix(brds, toolchains)
if err:
sys.exit(col.build(col.RED, err))
return 0
# Work out how many commits to build. We want to build everything on the
# branch. We also build the upstream commit as a control so we can see
# problems introduced by the first commit on the branch.
count = options.count
has_range = options.branch and '..' in options.branch
if count == -1:
if not options.branch:
count = 1
else:
if has_range:
count, msg = gitutil.count_commits_in_range(options.git_dir,
options.branch)
else:
count, msg = gitutil.count_commits_in_branch(options.git_dir,
options.branch)
if count is None:
sys.exit(col.build(col.RED, msg))
elif count == 0:
sys.exit(col.build(col.RED, "Range '%s' has no commits" %
options.branch))
if msg:
print(col.build(col.YELLOW, msg))
count += 1 # Build upstream commit also
if not count:
str = ("No commits found to process in branch '%s': "
"set branch's upstream or use -c flag" % options.branch)
sys.exit(col.build(col.RED, str))
if options.work_in_output:
if len(selected) != 1:
sys.exit(col.build(col.RED,
'-w can only be used with a single board'))
if count != 1:
sys.exit(col.build(col.RED,
'-w can only be used with a single commit'))
# Read the metadata from the commits. First look at the upstream commit,
# then the ones in the branch. We would like to do something like
# upstream/master~..branch but that isn't possible if upstream/master is
# a merge commit (it will list all the commits that form part of the
# merge)
# Conflicting tags are not a problem for buildman, since it does not use
# them. For example, Series-version is not useful for buildman. On the
# other hand conflicting tags will cause an error. So allow later tags
# to overwrite earlier ones by setting allow_overwrite=True
if options.branch:
if count == -1:
if has_range:
range_expr = options.branch
else:
range_expr = gitutil.get_range_in_branch(options.git_dir,
options.branch)
upstream_commit = gitutil.get_upstream(options.git_dir,
options.branch)
series = patchstream.get_metadata_for_list(upstream_commit,
options.git_dir, 1, series=None, allow_overwrite=True)
series = patchstream.get_metadata_for_list(range_expr,
options.git_dir, None, series, allow_overwrite=True)
else:
# Honour the count
series = patchstream.get_metadata_for_list(options.branch,
options.git_dir, count, series=None, allow_overwrite=True)
else:
series = None
if not options.dry_run:
options.verbose = True
if not options.summary:
options.show_errors = True
# By default we have one thread per CPU. But if there are not enough jobs
# we can have fewer threads and use a high '-j' value for make.
if options.threads is None:
options.threads = min(multiprocessing.cpu_count(), len(selected))
if not options.jobs:
options.jobs = max(1, (multiprocessing.cpu_count() +
len(selected) - 1) // len(selected))
if not options.step:
options.step = len(series.commits) - 1
gnu_make = command.output(os.path.join(options.git,
'scripts/show-gnu-make'), raise_on_error=False).rstrip()
if not gnu_make:
sys.exit('GNU Make not found')
# Create a new builder with the selected options.
output_dir = options.output_dir
if options.branch:
dirname = options.branch.replace('/', '_')
# As a special case allow the board directory to be placed in the
# output directory itself rather than any subdirectory.
if not options.no_subdirs:
output_dir = os.path.join(options.output_dir, dirname)
if clean_dir and os.path.exists(output_dir):
shutil.rmtree(output_dir)
adjust_cfg = cfgutil.convert_list_to_dict(options.adjust_cfg)
builder = Builder(toolchains, output_dir, options.git_dir,
options.threads, options.jobs, gnu_make=gnu_make, checkout=True,
show_unknown=options.show_unknown, step=options.step,
no_subdirs=options.no_subdirs, full_path=options.full_path,
verbose_build=options.verbose_build,
mrproper=options.mrproper,
per_board_out_dir=options.per_board_out_dir,
config_only=options.config_only,
squash_config_y=not options.preserve_config_y,
warnings_as_errors=options.warnings_as_errors,
work_in_output=options.work_in_output,
test_thread_exceptions=test_thread_exceptions,
adjust_cfg=adjust_cfg)
builder.force_config_on_failure = not options.quick
if make_func:
builder.do_make = make_func
# For a dry run, just show our actions as a sanity check
if options.dry_run:
ShowActions(series, why_selected, selected, builder, options,
board_warnings)
else:
builder.force_build = options.force_build
builder.force_build_failures = options.force_build_failures
builder.force_reconfig = options.force_reconfig
builder.in_tree = options.in_tree
# Work out which boards to build
board_selected = brds.get_selected_dict()
if series:
commits = series.commits
# Number the commits for test purposes
for commit in range(len(commits)):
commits[commit].sequence = commit
else:
commits = None
if not options.ide:
tprint(GetActionSummary(options.summary, commits, board_selected,
options))
# We can't show function sizes without board details at present
if options.show_bloat:
options.show_detail = True
builder.SetDisplayOptions(
options.show_errors, options.show_sizes, options.show_detail,
options.show_bloat, options.list_error_boards, options.show_config,
options.show_environment, options.filter_dtb_warnings,
options.filter_migration_warnings, options.ide)
if options.summary:
builder.ShowSummary(commits, board_selected)
else:
fail, warned, excs = builder.BuildBoards(
commits, board_selected, options.keep_outputs, options.verbose)
if excs:
return 102
elif fail:
return 100
elif warned and not options.ignore_warnings:
return 101
return 0