503 lines
21 KiB
Python
503 lines
21 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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import command
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import gitutil
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RETURN_CODE_RETRY = -1
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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 options to build.
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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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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, incremental, 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.incremental = incremental
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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):
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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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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 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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# 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 not self.incremental:
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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):
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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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"""
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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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# We don't want unicode characters in log files
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fd.write(result.stdout.decode('UTF-8').encode('ASCII', 'replace'))
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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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# We don't want unicode characters in log files
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fd.write(result.stderr.decode('UTF-8').encode('ASCII', 'replace'))
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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 >>fd, 'gcc', result.toolchain.gcc
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print >>fd, 'path', result.toolchain.path
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print >>fd, 'cross', result.toolchain.cross
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print >>fd, 'arch', result.toolchain.arch
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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, 'env'), 'w') as fd:
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for var in sorted(env.keys()):
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print >>fd, '%s="%s"' % (var, env[var])
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lines = []
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for fname in ['u-boot', 'spl/u-boot-spl']:
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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 >>fd, nm_result.stdout,
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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 >>fd, dump_result.stdout,
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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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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 >>fd, '\n'.join(lines)
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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(result.out_dir, build_dir, dirname, ['u-boot.cfg',
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'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg', '.config',
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'include/autoconf.mk', '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(result.out_dir, build_dir, '', ['u-boot*', '*.bin',
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'*.map', '*.img', 'MLO', 'SPL', 'include/autoconf.mk',
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'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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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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did_config = True
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if not self.builder.force_reconfig:
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do_config = request_config
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# If we built that commit, then config is done. But if we got
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# an warning, reconfig next time to force it to build the same
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# files that created warnings this time. Otherwise an
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# incremental build may not build the same file, and we will
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# think that the warning has gone away.
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# We could avoid this by using -Werror everywhere...
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# For errors, the problem doesn't happen, since presumably
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# the build stopped and didn't generate output, so will retry
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# that file next time. So we could detect warnings and deal
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# with them specially here. For now, we just reconfigure if
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# anything goes work.
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# Of course this is substantially slower if there are build
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# errors/warnings (e.g. 2-3x slower even if only 10% of builds
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# have problems).
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if (failed and not result.already_done and not did_config and
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self.builder.force_config_on_failure):
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# If this build failed, try the next one with a
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# reconfigure.
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# Sometimes if the board_config.h file changes it can mess
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# with dependencies, and we get:
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# make: *** No rule to make target `include/autoconf.mk',
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# needed by `depend'.
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do_config = True
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force_build = True
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else:
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force_build = False
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if self.builder.force_config_on_failure:
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if failed:
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do_config = True
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result.commit_upto = commit_upto
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if result.return_code < 0:
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raise ValueError('Interrupt')
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# We have the build results, so output the result
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self._WriteResult(result, job.keep_outputs)
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self.builder.out_queue.put(result)
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else:
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# 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)
|
|
result.commit_upto = 0
|
|
self._WriteResult(result, job.keep_outputs)
|
|
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()
|