| # Copyright (c) 2014 Google, Inc |
| # |
| # SPDX-License-Identifier: GPL-2.0+ |
| # |
| |
| import errno |
| import glob |
| import os |
| import shutil |
| import threading |
| |
| import command |
| import gitutil |
| |
| RETURN_CODE_RETRY = -1 |
| |
| def Mkdir(dirname, parents = False): |
| """Make a directory if it doesn't already exist. |
| |
| Args: |
| dirname: Directory to create |
| """ |
| try: |
| if parents: |
| os.makedirs(dirname) |
| else: |
| os.mkdir(dirname) |
| except OSError as err: |
| if err.errno == errno.EEXIST: |
| pass |
| else: |
| raise |
| |
| class BuilderJob: |
| """Holds information about a job to be performed by a thread |
| |
| Members: |
| board: Board object to build |
| commits: List of commit options to build. |
| """ |
| def __init__(self): |
| self.board = None |
| self.commits = [] |
| |
| |
| class ResultThread(threading.Thread): |
| """This thread processes results from builder threads. |
| |
| It simply passes the results on to the builder. There is only one |
| result thread, and this helps to serialise the build output. |
| """ |
| def __init__(self, builder): |
| """Set up a new result thread |
| |
| Args: |
| builder: Builder which will be sent each result |
| """ |
| threading.Thread.__init__(self) |
| self.builder = builder |
| |
| def run(self): |
| """Called to start up the result thread. |
| |
| We collect the next result job and pass it on to the build. |
| """ |
| while True: |
| result = self.builder.out_queue.get() |
| self.builder.ProcessResult(result) |
| self.builder.out_queue.task_done() |
| |
| |
| class BuilderThread(threading.Thread): |
| """This thread builds U-Boot for a particular board. |
| |
| An input queue provides each new job. We run 'make' to build U-Boot |
| and then pass the results on to the output queue. |
| |
| Members: |
| builder: The builder which contains information we might need |
| thread_num: Our thread number (0-n-1), used to decide on a |
| temporary directory |
| """ |
| def __init__(self, builder, thread_num, incremental, per_board_out_dir): |
| """Set up a new builder thread""" |
| threading.Thread.__init__(self) |
| self.builder = builder |
| self.thread_num = thread_num |
| self.incremental = incremental |
| self.per_board_out_dir = per_board_out_dir |
| |
| def Make(self, commit, brd, stage, cwd, *args, **kwargs): |
| """Run 'make' on a particular commit and board. |
| |
| The source code will already be checked out, so the 'commit' |
| argument is only for information. |
| |
| Args: |
| commit: Commit object that is being built |
| brd: Board object that is being built |
| stage: Stage of the build. Valid stages are: |
| mrproper - can be called to clean source |
| config - called to configure for a board |
| build - the main make invocation - it does the build |
| args: A list of arguments to pass to 'make' |
| kwargs: A list of keyword arguments to pass to command.RunPipe() |
| |
| Returns: |
| CommandResult object |
| """ |
| return self.builder.do_make(commit, brd, stage, cwd, *args, |
| **kwargs) |
| |
| def RunCommit(self, commit_upto, brd, work_dir, do_config, config_only, |
| force_build, force_build_failures): |
| """Build a particular commit. |
| |
| If the build is already done, and we are not forcing a build, we skip |
| the build and just return the previously-saved results. |
| |
| Args: |
| commit_upto: Commit number to build (0...n-1) |
| brd: Board object to build |
| work_dir: Directory to which the source will be checked out |
| do_config: True to run a make <board>_defconfig on the source |
| config_only: Only configure the source, do not build it |
| force_build: Force a build even if one was previously done |
| force_build_failures: Force a bulid if the previous result showed |
| failure |
| |
| Returns: |
| tuple containing: |
| - CommandResult object containing the results of the build |
| - boolean indicating whether 'make config' is still needed |
| """ |
| # Create a default result - it will be overwritte by the call to |
| # self.Make() below, in the event that we do a build. |
| result = command.CommandResult() |
| result.return_code = 0 |
| if self.builder.in_tree: |
| out_dir = work_dir |
| else: |
| if self.per_board_out_dir: |
| out_rel_dir = os.path.join('..', brd.target) |
| else: |
| out_rel_dir = 'build' |
| out_dir = os.path.join(work_dir, out_rel_dir) |
| |
| # Check if the job was already completed last time |
| done_file = self.builder.GetDoneFile(commit_upto, brd.target) |
| result.already_done = os.path.exists(done_file) |
| will_build = (force_build or force_build_failures or |
| not result.already_done) |
| if result.already_done: |
| # Get the return code from that build and use it |
| with open(done_file, 'r') as fd: |
| result.return_code = int(fd.readline()) |
| |
| # Check the signal that the build needs to be retried |
| if result.return_code == RETURN_CODE_RETRY: |
| will_build = True |
| elif will_build: |
| err_file = self.builder.GetErrFile(commit_upto, brd.target) |
| if os.path.exists(err_file) and os.stat(err_file).st_size: |
| result.stderr = 'bad' |
| elif not force_build: |
| # The build passed, so no need to build it again |
| will_build = False |
| |
| if will_build: |
| # We are going to have to build it. First, get a toolchain |
| if not self.toolchain: |
| try: |
| self.toolchain = self.builder.toolchains.Select(brd.arch) |
| except ValueError as err: |
| result.return_code = 10 |
| result.stdout = '' |
| result.stderr = str(err) |
| # TODO(sjg@chromium.org): This gets swallowed, but needs |
| # to be reported. |
| |
| if self.toolchain: |
| # Checkout the right commit |
| if self.builder.commits: |
| commit = self.builder.commits[commit_upto] |
| if self.builder.checkout: |
| git_dir = os.path.join(work_dir, '.git') |
| gitutil.Checkout(commit.hash, git_dir, work_dir, |
| force=True) |
| else: |
| commit = 'current' |
| |
| # Set up the environment and command line |
| env = self.toolchain.MakeEnvironment(self.builder.full_path) |
| Mkdir(out_dir) |
| args = [] |
| cwd = work_dir |
| src_dir = os.path.realpath(work_dir) |
| if not self.builder.in_tree: |
| if commit_upto is None: |
| # In this case we are building in the original source |
| # directory (i.e. the current directory where buildman |
| # is invoked. The output directory is set to this |
| # thread's selected work directory. |
| # |
| # Symlinks can confuse U-Boot's Makefile since |
| # we may use '..' in our path, so remove them. |
| out_dir = os.path.realpath(out_dir) |
| args.append('O=%s' % out_dir) |
| cwd = None |
| src_dir = os.getcwd() |
| else: |
| args.append('O=%s' % out_rel_dir) |
| if self.builder.verbose_build: |
| args.append('V=1') |
| else: |
| args.append('-s') |
| if self.builder.num_jobs is not None: |
| args.extend(['-j', str(self.builder.num_jobs)]) |
| config_args = ['%s_defconfig' % brd.target] |
| config_out = '' |
| args.extend(self.builder.toolchains.GetMakeArguments(brd)) |
| |
| # If we need to reconfigure, do that now |
| if do_config: |
| config_out = '' |
| if not self.incremental: |
| result = self.Make(commit, brd, 'mrproper', cwd, |
| 'mrproper', *args, env=env) |
| config_out += result.combined |
| result = self.Make(commit, brd, 'config', cwd, |
| *(args + config_args), env=env) |
| config_out += result.combined |
| do_config = False # No need to configure next time |
| if result.return_code == 0: |
| if config_only: |
| args.append('cfg') |
| result = self.Make(commit, brd, 'build', cwd, *args, |
| env=env) |
| result.stderr = result.stderr.replace(src_dir + '/', '') |
| if self.builder.verbose_build: |
| result.stdout = config_out + result.stdout |
| else: |
| result.return_code = 1 |
| result.stderr = 'No tool chain for %s\n' % brd.arch |
| result.already_done = False |
| |
| result.toolchain = self.toolchain |
| result.brd = brd |
| result.commit_upto = commit_upto |
| result.out_dir = out_dir |
| return result, do_config |
| |
| def _WriteResult(self, result, keep_outputs): |
| """Write a built result to the output directory. |
| |
| Args: |
| result: CommandResult object containing result to write |
| keep_outputs: True to store the output binaries, False |
| to delete them |
| """ |
| # Fatal error |
| if result.return_code < 0: |
| return |
| |
| # If we think this might have been aborted with Ctrl-C, record the |
| # failure but not that we are 'done' with this board. A retry may fix |
| # it. |
| maybe_aborted = result.stderr and 'No child processes' in result.stderr |
| |
| if result.already_done: |
| return |
| |
| # Write the output and stderr |
| output_dir = self.builder._GetOutputDir(result.commit_upto) |
| Mkdir(output_dir) |
| build_dir = self.builder.GetBuildDir(result.commit_upto, |
| result.brd.target) |
| Mkdir(build_dir) |
| |
| outfile = os.path.join(build_dir, 'log') |
| with open(outfile, 'w') as fd: |
| if result.stdout: |
| fd.write(result.stdout) |
| |
| errfile = self.builder.GetErrFile(result.commit_upto, |
| result.brd.target) |
| if result.stderr: |
| with open(errfile, 'w') as fd: |
| fd.write(result.stderr) |
| elif os.path.exists(errfile): |
| os.remove(errfile) |
| |
| if result.toolchain: |
| # Write the build result and toolchain information. |
| done_file = self.builder.GetDoneFile(result.commit_upto, |
| result.brd.target) |
| with open(done_file, 'w') as fd: |
| if maybe_aborted: |
| # Special code to indicate we need to retry |
| fd.write('%s' % RETURN_CODE_RETRY) |
| else: |
| fd.write('%s' % result.return_code) |
| with open(os.path.join(build_dir, 'toolchain'), 'w') as fd: |
| print >>fd, 'gcc', result.toolchain.gcc |
| print >>fd, 'path', result.toolchain.path |
| print >>fd, 'cross', result.toolchain.cross |
| print >>fd, 'arch', result.toolchain.arch |
| fd.write('%s' % result.return_code) |
| |
| # Write out the image and function size information and an objdump |
| env = result.toolchain.MakeEnvironment(self.builder.full_path) |
| lines = [] |
| for fname in ['u-boot', 'spl/u-boot-spl']: |
| cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname] |
| nm_result = command.RunPipe([cmd], capture=True, |
| capture_stderr=True, cwd=result.out_dir, |
| raise_on_error=False, env=env) |
| if nm_result.stdout: |
| nm = self.builder.GetFuncSizesFile(result.commit_upto, |
| result.brd.target, fname) |
| with open(nm, 'w') as fd: |
| print >>fd, nm_result.stdout, |
| |
| cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname] |
| dump_result = command.RunPipe([cmd], capture=True, |
| capture_stderr=True, cwd=result.out_dir, |
| raise_on_error=False, env=env) |
| rodata_size = '' |
| if dump_result.stdout: |
| objdump = self.builder.GetObjdumpFile(result.commit_upto, |
| result.brd.target, fname) |
| with open(objdump, 'w') as fd: |
| print >>fd, dump_result.stdout, |
| for line in dump_result.stdout.splitlines(): |
| fields = line.split() |
| if len(fields) > 5 and fields[1] == '.rodata': |
| rodata_size = fields[2] |
| |
| cmd = ['%ssize' % self.toolchain.cross, fname] |
| size_result = command.RunPipe([cmd], capture=True, |
| capture_stderr=True, cwd=result.out_dir, |
| raise_on_error=False, env=env) |
| if size_result.stdout: |
| lines.append(size_result.stdout.splitlines()[1] + ' ' + |
| rodata_size) |
| |
| # Write out the image sizes file. This is similar to the output |
| # of binutil's 'size' utility, but it omits the header line and |
| # adds an additional hex value at the end of each line for the |
| # rodata size |
| if len(lines): |
| sizes = self.builder.GetSizesFile(result.commit_upto, |
| result.brd.target) |
| with open(sizes, 'w') as fd: |
| print >>fd, '\n'.join(lines) |
| |
| # Write out the configuration files, with a special case for SPL |
| for dirname in ['', 'spl', 'tpl']: |
| self.CopyFiles(result.out_dir, build_dir, dirname, ['u-boot.cfg', |
| 'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg', '.config', |
| 'include/autoconf.mk', 'include/generated/autoconf.h']) |
| |
| # Now write the actual build output |
| if keep_outputs: |
| self.CopyFiles(result.out_dir, build_dir, '', ['u-boot*', '*.bin', |
| '*.map', '*.img', 'MLO', 'SPL', 'include/autoconf.mk', |
| 'spl/u-boot-spl*']) |
| |
| def CopyFiles(self, out_dir, build_dir, dirname, patterns): |
| """Copy files from the build directory to the output. |
| |
| Args: |
| out_dir: Path to output directory containing the files |
| build_dir: Place to copy the files |
| dirname: Source directory, '' for normal U-Boot, 'spl' for SPL |
| patterns: A list of filenames (strings) to copy, each relative |
| to the build directory |
| """ |
| for pattern in patterns: |
| file_list = glob.glob(os.path.join(out_dir, dirname, pattern)) |
| for fname in file_list: |
| target = os.path.basename(fname) |
| if dirname: |
| base, ext = os.path.splitext(target) |
| if ext: |
| target = '%s-%s%s' % (base, dirname, ext) |
| shutil.copy(fname, os.path.join(build_dir, target)) |
| |
| def RunJob(self, job): |
| """Run a single job |
| |
| A job consists of a building a list of commits for a particular board. |
| |
| Args: |
| job: Job to build |
| """ |
| brd = job.board |
| work_dir = self.builder.GetThreadDir(self.thread_num) |
| self.toolchain = None |
| if job.commits: |
| # Run 'make board_defconfig' on the first commit |
| do_config = True |
| commit_upto = 0 |
| force_build = False |
| for commit_upto in range(0, len(job.commits), job.step): |
| result, request_config = self.RunCommit(commit_upto, brd, |
| work_dir, do_config, self.builder.config_only, |
| force_build or self.builder.force_build, |
| self.builder.force_build_failures) |
| failed = result.return_code or result.stderr |
| did_config = do_config |
| if failed and not do_config: |
| # If our incremental build failed, try building again |
| # with a reconfig. |
| if self.builder.force_config_on_failure: |
| result, request_config = self.RunCommit(commit_upto, |
| brd, work_dir, True, False, True, False) |
| did_config = True |
| 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) |
| 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) |
| 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() |
