mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 01:17:39 +00:00
73da3d2cff
Buildman reuses build directories from previous builds to avoid the cost of 'make mrproper' for every build. If the previous build produced an SPL image but the current one does not, the SPL image will remain and buildman will think it is a result of building the current board. Remove these files before building, to avoid this problem. Signed-off-by: Simon Glass <sjg@chromium.org>
531 lines
23 KiB
Python
531 lines
23 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2014 Google, Inc
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#
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import errno
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import glob
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import os
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import shutil
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import sys
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import threading
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from patman import command
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from patman import gitutil
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RETURN_CODE_RETRY = -1
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BASE_ELF_FILENAMES = ['u-boot', 'spl/u-boot-spl', 'tpl/u-boot-tpl']
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def Mkdir(dirname, parents = False):
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"""Make a directory if it doesn't already exist.
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Args:
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dirname: Directory to create
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"""
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try:
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if parents:
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os.makedirs(dirname)
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else:
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os.mkdir(dirname)
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except OSError as err:
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if err.errno == errno.EEXIST:
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if os.path.realpath('.') == os.path.realpath(dirname):
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print("Cannot create the current working directory '%s'!" % dirname)
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sys.exit(1)
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pass
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else:
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raise
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class BuilderJob:
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"""Holds information about a job to be performed by a thread
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Members:
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board: Board object to build
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commits: List of Commit objects to build
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keep_outputs: True to save build output files
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step: 1 to process every commit, n to process every nth commit
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work_in_output: Use the output directory as the work directory and
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don't write to a separate output directory.
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"""
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def __init__(self):
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self.board = None
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self.commits = []
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self.keep_outputs = False
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self.step = 1
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self.work_in_output = False
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class ResultThread(threading.Thread):
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"""This thread processes results from builder threads.
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It simply passes the results on to the builder. There is only one
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result thread, and this helps to serialise the build output.
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"""
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def __init__(self, builder):
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"""Set up a new result thread
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Args:
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builder: Builder which will be sent each result
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"""
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threading.Thread.__init__(self)
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self.builder = builder
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def run(self):
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"""Called to start up the result thread.
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We collect the next result job and pass it on to the build.
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"""
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while True:
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result = self.builder.out_queue.get()
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self.builder.ProcessResult(result)
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self.builder.out_queue.task_done()
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class BuilderThread(threading.Thread):
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"""This thread builds U-Boot for a particular board.
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An input queue provides each new job. We run 'make' to build U-Boot
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and then pass the results on to the output queue.
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Members:
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builder: The builder which contains information we might need
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thread_num: Our thread number (0-n-1), used to decide on a
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temporary directory
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"""
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def __init__(self, builder, thread_num, mrproper, per_board_out_dir):
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"""Set up a new builder thread"""
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threading.Thread.__init__(self)
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self.builder = builder
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self.thread_num = thread_num
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self.mrproper = mrproper
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self.per_board_out_dir = per_board_out_dir
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def Make(self, commit, brd, stage, cwd, *args, **kwargs):
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"""Run 'make' on a particular commit and board.
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The source code will already be checked out, so the 'commit'
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argument is only for information.
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Args:
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commit: Commit object that is being built
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brd: Board object that is being built
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stage: Stage of the build. Valid stages are:
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mrproper - can be called to clean source
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config - called to configure for a board
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build - the main make invocation - it does the build
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args: A list of arguments to pass to 'make'
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kwargs: A list of keyword arguments to pass to command.RunPipe()
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Returns:
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CommandResult object
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"""
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return self.builder.do_make(commit, brd, stage, cwd, *args,
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**kwargs)
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def RunCommit(self, commit_upto, brd, work_dir, do_config, config_only,
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force_build, force_build_failures, work_in_output):
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"""Build a particular commit.
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If the build is already done, and we are not forcing a build, we skip
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the build and just return the previously-saved results.
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Args:
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commit_upto: Commit number to build (0...n-1)
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brd: Board object to build
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work_dir: Directory to which the source will be checked out
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do_config: True to run a make <board>_defconfig on the source
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config_only: Only configure the source, do not build it
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force_build: Force a build even if one was previously done
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force_build_failures: Force a bulid if the previous result showed
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failure
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work_in_output: Use the output directory as the work directory and
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don't write to a separate output directory.
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Returns:
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tuple containing:
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- CommandResult object containing the results of the build
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- boolean indicating whether 'make config' is still needed
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"""
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# Create a default result - it will be overwritte by the call to
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# self.Make() below, in the event that we do a build.
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result = command.CommandResult()
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result.return_code = 0
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if work_in_output or self.builder.in_tree:
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out_dir = work_dir
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else:
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if self.per_board_out_dir:
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out_rel_dir = os.path.join('..', brd.target)
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else:
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out_rel_dir = 'build'
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out_dir = os.path.join(work_dir, out_rel_dir)
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# Check if the job was already completed last time
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done_file = self.builder.GetDoneFile(commit_upto, brd.target)
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result.already_done = os.path.exists(done_file)
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will_build = (force_build or force_build_failures or
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not result.already_done)
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if result.already_done:
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# Get the return code from that build and use it
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with open(done_file, 'r') as fd:
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try:
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result.return_code = int(fd.readline())
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except ValueError:
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# The file may be empty due to running out of disk space.
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# Try a rebuild
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result.return_code = RETURN_CODE_RETRY
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# Check the signal that the build needs to be retried
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if result.return_code == RETURN_CODE_RETRY:
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will_build = True
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elif will_build:
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err_file = self.builder.GetErrFile(commit_upto, brd.target)
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if os.path.exists(err_file) and os.stat(err_file).st_size:
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result.stderr = 'bad'
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elif not force_build:
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# The build passed, so no need to build it again
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will_build = False
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if will_build:
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# We are going to have to build it. First, get a toolchain
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if not self.toolchain:
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try:
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self.toolchain = self.builder.toolchains.Select(brd.arch)
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except ValueError as err:
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result.return_code = 10
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result.stdout = ''
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result.stderr = str(err)
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# TODO(sjg@chromium.org): This gets swallowed, but needs
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# to be reported.
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if self.toolchain:
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# Checkout the right commit
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if self.builder.commits:
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commit = self.builder.commits[commit_upto]
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if self.builder.checkout:
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git_dir = os.path.join(work_dir, '.git')
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gitutil.Checkout(commit.hash, git_dir, work_dir,
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force=True)
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else:
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commit = 'current'
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# Set up the environment and command line
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env = self.toolchain.MakeEnvironment(self.builder.full_path)
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Mkdir(out_dir)
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args = []
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cwd = work_dir
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src_dir = os.path.realpath(work_dir)
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if not self.builder.in_tree:
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if commit_upto is None:
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# In this case we are building in the original source
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# directory (i.e. the current directory where buildman
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# is invoked. The output directory is set to this
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# thread's selected work directory.
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#
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# Symlinks can confuse U-Boot's Makefile since
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# we may use '..' in our path, so remove them.
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out_dir = os.path.realpath(out_dir)
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args.append('O=%s' % out_dir)
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cwd = None
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src_dir = os.getcwd()
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else:
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args.append('O=%s' % out_rel_dir)
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if self.builder.verbose_build:
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args.append('V=1')
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else:
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args.append('-s')
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if self.builder.num_jobs is not None:
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args.extend(['-j', str(self.builder.num_jobs)])
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if self.builder.warnings_as_errors:
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args.append('KCFLAGS=-Werror')
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config_args = ['%s_defconfig' % brd.target]
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config_out = ''
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args.extend(self.builder.toolchains.GetMakeArguments(brd))
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args.extend(self.toolchain.MakeArgs())
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# Remove any output targets. Since we use a build directory that
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# was previously used by another board, it may have produced an
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# SPL image. If we don't remove it (i.e. see do_config and
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# self.mrproper below) then it will appear to be the output of
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# this build, even if it does not produce SPL images.
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build_dir = self.builder.GetBuildDir(commit_upto, brd.target)
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for elf in BASE_ELF_FILENAMES:
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fname = os.path.join(out_dir, elf)
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if os.path.exists(fname):
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os.remove(fname)
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# If we need to reconfigure, do that now
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if do_config:
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config_out = ''
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if self.mrproper:
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result = self.Make(commit, brd, 'mrproper', cwd,
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'mrproper', *args, env=env)
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config_out += result.combined
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result = self.Make(commit, brd, 'config', cwd,
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*(args + config_args), env=env)
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config_out += result.combined
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do_config = False # No need to configure next time
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if result.return_code == 0:
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if config_only:
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args.append('cfg')
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result = self.Make(commit, brd, 'build', cwd, *args,
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env=env)
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result.stderr = result.stderr.replace(src_dir + '/', '')
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if self.builder.verbose_build:
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result.stdout = config_out + result.stdout
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else:
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result.return_code = 1
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result.stderr = 'No tool chain for %s\n' % brd.arch
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result.already_done = False
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result.toolchain = self.toolchain
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result.brd = brd
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result.commit_upto = commit_upto
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result.out_dir = out_dir
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return result, do_config
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def _WriteResult(self, result, keep_outputs, work_in_output):
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"""Write a built result to the output directory.
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Args:
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result: CommandResult object containing result to write
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keep_outputs: True to store the output binaries, False
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to delete them
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work_in_output: Use the output directory as the work directory and
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don't write to a separate output directory.
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"""
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# Fatal error
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if result.return_code < 0:
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return
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# If we think this might have been aborted with Ctrl-C, record the
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# failure but not that we are 'done' with this board. A retry may fix
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# it.
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maybe_aborted = result.stderr and 'No child processes' in result.stderr
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if result.already_done:
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return
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# Write the output and stderr
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output_dir = self.builder._GetOutputDir(result.commit_upto)
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Mkdir(output_dir)
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build_dir = self.builder.GetBuildDir(result.commit_upto,
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result.brd.target)
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Mkdir(build_dir)
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outfile = os.path.join(build_dir, 'log')
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with open(outfile, 'w') as fd:
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if result.stdout:
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fd.write(result.stdout)
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errfile = self.builder.GetErrFile(result.commit_upto,
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result.brd.target)
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if result.stderr:
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with open(errfile, 'w') as fd:
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fd.write(result.stderr)
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elif os.path.exists(errfile):
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os.remove(errfile)
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if result.toolchain:
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# Write the build result and toolchain information.
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done_file = self.builder.GetDoneFile(result.commit_upto,
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result.brd.target)
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with open(done_file, 'w') as fd:
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if maybe_aborted:
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# Special code to indicate we need to retry
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fd.write('%s' % RETURN_CODE_RETRY)
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else:
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fd.write('%s' % result.return_code)
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with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
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print('gcc', result.toolchain.gcc, file=fd)
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print('path', result.toolchain.path, file=fd)
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print('cross', result.toolchain.cross, file=fd)
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print('arch', result.toolchain.arch, file=fd)
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fd.write('%s' % result.return_code)
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# Write out the image and function size information and an objdump
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env = result.toolchain.MakeEnvironment(self.builder.full_path)
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with open(os.path.join(build_dir, 'out-env'), 'w') as fd:
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for var in sorted(env.keys()):
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print('%s="%s"' % (var, env[var]), file=fd)
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lines = []
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for fname in BASE_ELF_FILENAMES:
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cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname]
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nm_result = command.RunPipe([cmd], capture=True,
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capture_stderr=True, cwd=result.out_dir,
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raise_on_error=False, env=env)
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if nm_result.stdout:
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nm = self.builder.GetFuncSizesFile(result.commit_upto,
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result.brd.target, fname)
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with open(nm, 'w') as fd:
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print(nm_result.stdout, end=' ', file=fd)
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cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname]
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dump_result = command.RunPipe([cmd], capture=True,
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capture_stderr=True, cwd=result.out_dir,
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raise_on_error=False, env=env)
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rodata_size = ''
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if dump_result.stdout:
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objdump = self.builder.GetObjdumpFile(result.commit_upto,
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result.brd.target, fname)
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with open(objdump, 'w') as fd:
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print(dump_result.stdout, end=' ', file=fd)
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for line in dump_result.stdout.splitlines():
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fields = line.split()
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if len(fields) > 5 and fields[1] == '.rodata':
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rodata_size = fields[2]
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cmd = ['%ssize' % self.toolchain.cross, fname]
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size_result = command.RunPipe([cmd], capture=True,
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capture_stderr=True, cwd=result.out_dir,
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raise_on_error=False, env=env)
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if size_result.stdout:
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lines.append(size_result.stdout.splitlines()[1] + ' ' +
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rodata_size)
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# Extract the environment from U-Boot and dump it out
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cmd = ['%sobjcopy' % self.toolchain.cross, '-O', 'binary',
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'-j', '.rodata.default_environment',
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'env/built-in.o', 'uboot.env']
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command.RunPipe([cmd], capture=True,
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capture_stderr=True, cwd=result.out_dir,
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raise_on_error=False, env=env)
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ubootenv = os.path.join(result.out_dir, 'uboot.env')
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if not work_in_output:
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self.CopyFiles(result.out_dir, build_dir, '', ['uboot.env'])
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# Write out the image sizes file. This is similar to the output
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# of binutil's 'size' utility, but it omits the header line and
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# adds an additional hex value at the end of each line for the
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# rodata size
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if len(lines):
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sizes = self.builder.GetSizesFile(result.commit_upto,
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result.brd.target)
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with open(sizes, 'w') as fd:
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print('\n'.join(lines), file=fd)
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if not work_in_output:
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# Write out the configuration files, with a special case for SPL
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for dirname in ['', 'spl', 'tpl']:
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self.CopyFiles(
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result.out_dir, build_dir, dirname,
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['u-boot.cfg', 'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg',
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'.config', 'include/autoconf.mk',
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'include/generated/autoconf.h'])
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# Now write the actual build output
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if keep_outputs:
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self.CopyFiles(
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result.out_dir, build_dir, '',
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['u-boot*', '*.bin', '*.map', '*.img', 'MLO', 'SPL',
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'include/autoconf.mk', 'spl/u-boot-spl*'])
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def CopyFiles(self, out_dir, build_dir, dirname, patterns):
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"""Copy files from the build directory to the output.
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Args:
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out_dir: Path to output directory containing the files
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build_dir: Place to copy the files
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dirname: Source directory, '' for normal U-Boot, 'spl' for SPL
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patterns: A list of filenames (strings) to copy, each relative
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to the build directory
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"""
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for pattern in patterns:
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file_list = glob.glob(os.path.join(out_dir, dirname, pattern))
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for fname in file_list:
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target = os.path.basename(fname)
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if dirname:
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base, ext = os.path.splitext(target)
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if ext:
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target = '%s-%s%s' % (base, dirname, ext)
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shutil.copy(fname, os.path.join(build_dir, target))
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def RunJob(self, job):
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"""Run a single job
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A job consists of a building a list of commits for a particular board.
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Args:
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job: Job to build
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"""
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brd = job.board
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work_dir = self.builder.GetThreadDir(self.thread_num)
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self.toolchain = None
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if job.commits:
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# Run 'make board_defconfig' on the first commit
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do_config = True
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commit_upto = 0
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force_build = False
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for commit_upto in range(0, len(job.commits), job.step):
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result, request_config = self.RunCommit(commit_upto, brd,
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work_dir, do_config, self.builder.config_only,
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force_build or self.builder.force_build,
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self.builder.force_build_failures,
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work_in_output=job.work_in_output)
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failed = result.return_code or result.stderr
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did_config = do_config
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if failed and not do_config:
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# If our incremental build failed, try building again
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# with a reconfig.
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if self.builder.force_config_on_failure:
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result, request_config = self.RunCommit(commit_upto,
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brd, work_dir, True, False, True, False,
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work_in_output=job.work_in_output)
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did_config = True
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if not self.builder.force_reconfig:
|
|
do_config = request_config
|
|
|
|
# If we built that commit, then config is done. But if we got
|
|
# an warning, reconfig next time to force it to build the same
|
|
# files that created warnings this time. Otherwise an
|
|
# incremental build may not build the same file, and we will
|
|
# think that the warning has gone away.
|
|
# We could avoid this by using -Werror everywhere...
|
|
# For errors, the problem doesn't happen, since presumably
|
|
# the build stopped and didn't generate output, so will retry
|
|
# that file next time. So we could detect warnings and deal
|
|
# with them specially here. For now, we just reconfigure if
|
|
# anything goes work.
|
|
# Of course this is substantially slower if there are build
|
|
# errors/warnings (e.g. 2-3x slower even if only 10% of builds
|
|
# have problems).
|
|
if (failed and not result.already_done and not did_config and
|
|
self.builder.force_config_on_failure):
|
|
# If this build failed, try the next one with a
|
|
# reconfigure.
|
|
# Sometimes if the board_config.h file changes it can mess
|
|
# with dependencies, and we get:
|
|
# make: *** No rule to make target `include/autoconf.mk',
|
|
# needed by `depend'.
|
|
do_config = True
|
|
force_build = True
|
|
else:
|
|
force_build = False
|
|
if self.builder.force_config_on_failure:
|
|
if failed:
|
|
do_config = True
|
|
result.commit_upto = commit_upto
|
|
if result.return_code < 0:
|
|
raise ValueError('Interrupt')
|
|
|
|
# We have the build results, so output the result
|
|
self._WriteResult(result, job.keep_outputs, job.work_in_output)
|
|
self.builder.out_queue.put(result)
|
|
else:
|
|
# Just build the currently checked-out build
|
|
result, request_config = self.RunCommit(None, brd, work_dir, True,
|
|
self.builder.config_only, True,
|
|
self.builder.force_build_failures,
|
|
work_in_output=job.work_in_output)
|
|
result.commit_upto = 0
|
|
self._WriteResult(result, job.keep_outputs, job.work_in_output)
|
|
self.builder.out_queue.put(result)
|
|
|
|
def run(self):
|
|
"""Our thread's run function
|
|
|
|
This thread picks a job from the queue, runs it, and then goes to the
|
|
next job.
|
|
"""
|
|
while True:
|
|
job = self.builder.queue.get()
|
|
self.RunJob(job)
|
|
self.builder.queue.task_done()
|