1 # SPDX-License-Identifier: GPL-2.0+
2 # Copyright (c) 2014 Google, Inc
12 from buildman import cfgutil
13 from patman import command
14 from patman import gitutil
16 RETURN_CODE_RETRY = -1
17 BASE_ELF_FILENAMES = ['u-boot', 'spl/u-boot-spl', 'tpl/u-boot-tpl']
19 def Mkdir(dirname, parents = False):
20 """Make a directory if it doesn't already exist.
23 dirname: Directory to create
30 except OSError as err:
31 if err.errno == errno.EEXIST:
32 if os.path.realpath('.') == os.path.realpath(dirname):
33 print("Cannot create the current working directory '%s'!" % dirname)
40 """Holds information about a job to be performed by a thread
43 board: Board object to build
44 commits: List of Commit objects to build
45 keep_outputs: True to save build output files
46 step: 1 to process every commit, n to process every nth commit
47 work_in_output: Use the output directory as the work directory and
48 don't write to a separate output directory.
53 self.keep_outputs = False
55 self.work_in_output = False
58 class ResultThread(threading.Thread):
59 """This thread processes results from builder threads.
61 It simply passes the results on to the builder. There is only one
62 result thread, and this helps to serialise the build output.
64 def __init__(self, builder):
65 """Set up a new result thread
68 builder: Builder which will be sent each result
70 threading.Thread.__init__(self)
71 self.builder = builder
74 """Called to start up the result thread.
76 We collect the next result job and pass it on to the build.
79 result = self.builder.out_queue.get()
80 self.builder.ProcessResult(result)
81 self.builder.out_queue.task_done()
84 class BuilderThread(threading.Thread):
85 """This thread builds U-Boot for a particular board.
87 An input queue provides each new job. We run 'make' to build U-Boot
88 and then pass the results on to the output queue.
91 builder: The builder which contains information we might need
92 thread_num: Our thread number (0-n-1), used to decide on a
93 temporary directory. If this is -1 then there are no threads
94 and we are the (only) main process
95 mrproper: Use 'make mrproper' before each reconfigure
96 per_board_out_dir: True to build in a separate persistent directory per
97 board rather than a thread-specific directory
98 test_exception: Used for testing; True to raise an exception instead of
99 reporting the build result
101 def __init__(self, builder, thread_num, mrproper, per_board_out_dir,
102 test_exception=False):
103 """Set up a new builder thread"""
104 threading.Thread.__init__(self)
105 self.builder = builder
106 self.thread_num = thread_num
107 self.mrproper = mrproper
108 self.per_board_out_dir = per_board_out_dir
109 self.test_exception = test_exception
111 def Make(self, commit, brd, stage, cwd, *args, **kwargs):
112 """Run 'make' on a particular commit and board.
114 The source code will already be checked out, so the 'commit'
115 argument is only for information.
118 commit: Commit object that is being built
119 brd: Board object that is being built
120 stage: Stage of the build. Valid stages are:
121 mrproper - can be called to clean source
122 config - called to configure for a board
123 build - the main make invocation - it does the build
124 args: A list of arguments to pass to 'make'
125 kwargs: A list of keyword arguments to pass to command.RunPipe()
130 return self.builder.do_make(commit, brd, stage, cwd, *args,
133 def RunCommit(self, commit_upto, brd, work_dir, do_config, config_only,
134 force_build, force_build_failures, work_in_output,
136 """Build a particular commit.
138 If the build is already done, and we are not forcing a build, we skip
139 the build and just return the previously-saved results.
142 commit_upto: Commit number to build (0...n-1)
143 brd: Board object to build
144 work_dir: Directory to which the source will be checked out
145 do_config: True to run a make <board>_defconfig on the source
146 config_only: Only configure the source, do not build it
147 force_build: Force a build even if one was previously done
148 force_build_failures: Force a bulid if the previous result showed
150 work_in_output: Use the output directory as the work directory and
151 don't write to a separate output directory.
152 adjust_cfg (list of str): List of changes to make to .config file
153 before building. Each is one of (where C is either CONFIG_xxx
157 C=val to set the value of C (val must have quotes if C is
162 - CommandResult object containing the results of the build
163 - boolean indicating whether 'make config' is still needed
165 # Create a default result - it will be overwritte by the call to
166 # self.Make() below, in the event that we do a build.
167 result = command.CommandResult()
168 result.return_code = 0
169 if work_in_output or self.builder.in_tree:
172 if self.per_board_out_dir:
173 out_rel_dir = os.path.join('..', brd.target)
175 out_rel_dir = 'build'
176 out_dir = os.path.join(work_dir, out_rel_dir)
178 # Check if the job was already completed last time
179 done_file = self.builder.GetDoneFile(commit_upto, brd.target)
180 result.already_done = os.path.exists(done_file)
181 will_build = (force_build or force_build_failures or
182 not result.already_done)
183 if result.already_done:
184 # Get the return code from that build and use it
185 with open(done_file, 'r') as fd:
187 result.return_code = int(fd.readline())
189 # The file may be empty due to running out of disk space.
191 result.return_code = RETURN_CODE_RETRY
193 # Check the signal that the build needs to be retried
194 if result.return_code == RETURN_CODE_RETRY:
197 err_file = self.builder.GetErrFile(commit_upto, brd.target)
198 if os.path.exists(err_file) and os.stat(err_file).st_size:
199 result.stderr = 'bad'
200 elif not force_build:
201 # The build passed, so no need to build it again
205 # We are going to have to build it. First, get a toolchain
206 if not self.toolchain:
208 self.toolchain = self.builder.toolchains.Select(brd.arch)
209 except ValueError as err:
210 result.return_code = 10
212 result.stderr = str(err)
213 # TODO(sjg@chromium.org): This gets swallowed, but needs
217 # Checkout the right commit
218 if self.builder.commits:
219 commit = self.builder.commits[commit_upto]
220 if self.builder.checkout:
221 git_dir = os.path.join(work_dir, '.git')
222 gitutil.Checkout(commit.hash, git_dir, work_dir,
227 # Set up the environment and command line
228 env = self.toolchain.MakeEnvironment(self.builder.full_path)
232 src_dir = os.path.realpath(work_dir)
233 if not self.builder.in_tree:
234 if commit_upto is None:
235 # In this case we are building in the original source
236 # directory (i.e. the current directory where buildman
237 # is invoked. The output directory is set to this
238 # thread's selected work directory.
240 # Symlinks can confuse U-Boot's Makefile since
241 # we may use '..' in our path, so remove them.
242 out_dir = os.path.realpath(out_dir)
243 args.append('O=%s' % out_dir)
245 src_dir = os.getcwd()
247 args.append('O=%s' % out_rel_dir)
248 if self.builder.verbose_build:
252 if self.builder.num_jobs is not None:
253 args.extend(['-j', str(self.builder.num_jobs)])
254 if self.builder.warnings_as_errors:
255 args.append('KCFLAGS=-Werror')
256 config_args = ['%s_defconfig' % brd.target]
258 args.extend(self.builder.toolchains.GetMakeArguments(brd))
259 args.extend(self.toolchain.MakeArgs())
261 # Remove any output targets. Since we use a build directory that
262 # was previously used by another board, it may have produced an
263 # SPL image. If we don't remove it (i.e. see do_config and
264 # self.mrproper below) then it will appear to be the output of
265 # this build, even if it does not produce SPL images.
266 build_dir = self.builder.GetBuildDir(commit_upto, brd.target)
267 for elf in BASE_ELF_FILENAMES:
268 fname = os.path.join(out_dir, elf)
269 if os.path.exists(fname):
272 # If we need to reconfigure, do that now
273 cfg_file = os.path.join(out_dir, '.config')
274 if do_config or adjust_cfg:
277 result = self.Make(commit, brd, 'mrproper', cwd,
278 'mrproper', *args, env=env)
279 config_out += result.combined
280 result = self.Make(commit, brd, 'config', cwd,
281 *(args + config_args), env=env)
282 config_out += result.combined
283 do_config = False # No need to configure next time
285 cfgutil.adjust_cfg_file(cfg_file, adjust_cfg)
286 if result.return_code == 0:
289 result = self.Make(commit, brd, 'build', cwd, *args,
292 errs = cfgutil.check_cfg_file(cfg_file, adjust_cfg)
295 result.stderr += errs
296 result.return_code = 1
297 result.stderr = result.stderr.replace(src_dir + '/', '')
298 if self.builder.verbose_build:
299 result.stdout = config_out + result.stdout
301 result.return_code = 1
302 result.stderr = 'No tool chain for %s\n' % brd.arch
303 result.already_done = False
305 result.toolchain = self.toolchain
307 result.commit_upto = commit_upto
308 result.out_dir = out_dir
309 return result, do_config
311 def _WriteResult(self, result, keep_outputs, work_in_output):
312 """Write a built result to the output directory.
315 result: CommandResult object containing result to write
316 keep_outputs: True to store the output binaries, False
318 work_in_output: Use the output directory as the work directory and
319 don't write to a separate output directory.
321 # If we think this might have been aborted with Ctrl-C, record the
322 # failure but not that we are 'done' with this board. A retry may fix
324 maybe_aborted = result.stderr and 'No child processes' in result.stderr
326 if result.return_code >= 0 and result.already_done:
329 # Write the output and stderr
330 output_dir = self.builder._GetOutputDir(result.commit_upto)
332 build_dir = self.builder.GetBuildDir(result.commit_upto,
336 outfile = os.path.join(build_dir, 'log')
337 with open(outfile, 'w') as fd:
339 fd.write(result.stdout)
341 errfile = self.builder.GetErrFile(result.commit_upto,
344 with open(errfile, 'w') as fd:
345 fd.write(result.stderr)
346 elif os.path.exists(errfile):
350 if result.return_code < 0:
354 # Write the build result and toolchain information.
355 done_file = self.builder.GetDoneFile(result.commit_upto,
357 with open(done_file, 'w') as fd:
359 # Special code to indicate we need to retry
360 fd.write('%s' % RETURN_CODE_RETRY)
362 fd.write('%s' % result.return_code)
363 with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
364 print('gcc', result.toolchain.gcc, file=fd)
365 print('path', result.toolchain.path, file=fd)
366 print('cross', result.toolchain.cross, file=fd)
367 print('arch', result.toolchain.arch, file=fd)
368 fd.write('%s' % result.return_code)
370 # Write out the image and function size information and an objdump
371 env = result.toolchain.MakeEnvironment(self.builder.full_path)
372 with open(os.path.join(build_dir, 'out-env'), 'wb') as fd:
373 for var in sorted(env.keys()):
374 fd.write(b'%s="%s"' % (var, env[var]))
376 for fname in BASE_ELF_FILENAMES:
377 cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname]
378 nm_result = command.RunPipe([cmd], capture=True,
379 capture_stderr=True, cwd=result.out_dir,
380 raise_on_error=False, env=env)
382 nm = self.builder.GetFuncSizesFile(result.commit_upto,
383 result.brd.target, fname)
384 with open(nm, 'w') as fd:
385 print(nm_result.stdout, end=' ', file=fd)
387 cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname]
388 dump_result = command.RunPipe([cmd], capture=True,
389 capture_stderr=True, cwd=result.out_dir,
390 raise_on_error=False, env=env)
392 if dump_result.stdout:
393 objdump = self.builder.GetObjdumpFile(result.commit_upto,
394 result.brd.target, fname)
395 with open(objdump, 'w') as fd:
396 print(dump_result.stdout, end=' ', file=fd)
397 for line in dump_result.stdout.splitlines():
398 fields = line.split()
399 if len(fields) > 5 and fields[1] == '.rodata':
400 rodata_size = fields[2]
402 cmd = ['%ssize' % self.toolchain.cross, fname]
403 size_result = command.RunPipe([cmd], capture=True,
404 capture_stderr=True, cwd=result.out_dir,
405 raise_on_error=False, env=env)
406 if size_result.stdout:
407 lines.append(size_result.stdout.splitlines()[1] + ' ' +
410 # Extract the environment from U-Boot and dump it out
411 cmd = ['%sobjcopy' % self.toolchain.cross, '-O', 'binary',
412 '-j', '.rodata.default_environment',
413 'env/built-in.o', 'uboot.env']
414 command.RunPipe([cmd], capture=True,
415 capture_stderr=True, cwd=result.out_dir,
416 raise_on_error=False, env=env)
417 ubootenv = os.path.join(result.out_dir, 'uboot.env')
418 if not work_in_output:
419 self.CopyFiles(result.out_dir, build_dir, '', ['uboot.env'])
421 # Write out the image sizes file. This is similar to the output
422 # of binutil's 'size' utility, but it omits the header line and
423 # adds an additional hex value at the end of each line for the
426 sizes = self.builder.GetSizesFile(result.commit_upto,
428 with open(sizes, 'w') as fd:
429 print('\n'.join(lines), file=fd)
431 if not work_in_output:
432 # Write out the configuration files, with a special case for SPL
433 for dirname in ['', 'spl', 'tpl']:
435 result.out_dir, build_dir, dirname,
436 ['u-boot.cfg', 'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg',
437 '.config', 'include/autoconf.mk',
438 'include/generated/autoconf.h'])
440 # Now write the actual build output
443 result.out_dir, build_dir, '',
444 ['u-boot*', '*.bin', '*.map', '*.img', 'MLO', 'SPL',
445 'include/autoconf.mk', 'spl/u-boot-spl*'])
447 def CopyFiles(self, out_dir, build_dir, dirname, patterns):
448 """Copy files from the build directory to the output.
451 out_dir: Path to output directory containing the files
452 build_dir: Place to copy the files
453 dirname: Source directory, '' for normal U-Boot, 'spl' for SPL
454 patterns: A list of filenames (strings) to copy, each relative
455 to the build directory
457 for pattern in patterns:
458 file_list = glob.glob(os.path.join(out_dir, dirname, pattern))
459 for fname in file_list:
460 target = os.path.basename(fname)
462 base, ext = os.path.splitext(target)
464 target = '%s-%s%s' % (base, dirname, ext)
465 shutil.copy(fname, os.path.join(build_dir, target))
467 def _SendResult(self, result):
468 """Send a result to the builder for processing
471 result: CommandResult object containing the results of the build
474 ValueError if self.test_exception is true (for testing)
476 if self.test_exception:
477 raise ValueError('test exception')
478 if self.thread_num != -1:
479 self.builder.out_queue.put(result)
481 self.builder.ProcessResult(result)
483 def RunJob(self, job):
486 A job consists of a building a list of commits for a particular board.
492 List of Result objects
495 work_dir = self.builder.GetThreadDir(self.thread_num)
496 self.toolchain = None
498 # Run 'make board_defconfig' on the first commit
502 for commit_upto in range(0, len(job.commits), job.step):
503 result, request_config = self.RunCommit(commit_upto, brd,
504 work_dir, do_config, self.builder.config_only,
505 force_build or self.builder.force_build,
506 self.builder.force_build_failures,
507 job.work_in_output, job.adjust_cfg)
508 failed = result.return_code or result.stderr
509 did_config = do_config
510 if failed and not do_config:
511 # If our incremental build failed, try building again
513 if self.builder.force_config_on_failure:
514 result, request_config = self.RunCommit(commit_upto,
515 brd, work_dir, True, False, True, False,
516 job.work_in_output, job.adjust_cfg)
518 if not self.builder.force_reconfig:
519 do_config = request_config
521 # If we built that commit, then config is done. But if we got
522 # an warning, reconfig next time to force it to build the same
523 # files that created warnings this time. Otherwise an
524 # incremental build may not build the same file, and we will
525 # think that the warning has gone away.
526 # We could avoid this by using -Werror everywhere...
527 # For errors, the problem doesn't happen, since presumably
528 # the build stopped and didn't generate output, so will retry
529 # that file next time. So we could detect warnings and deal
530 # with them specially here. For now, we just reconfigure if
531 # anything goes work.
532 # Of course this is substantially slower if there are build
533 # errors/warnings (e.g. 2-3x slower even if only 10% of builds
535 if (failed and not result.already_done and not did_config and
536 self.builder.force_config_on_failure):
537 # If this build failed, try the next one with a
539 # Sometimes if the board_config.h file changes it can mess
540 # with dependencies, and we get:
541 # make: *** No rule to make target `include/autoconf.mk',
542 # needed by `depend'.
547 if self.builder.force_config_on_failure:
550 result.commit_upto = commit_upto
551 if result.return_code < 0:
552 raise ValueError('Interrupt')
554 # We have the build results, so output the result
555 self._WriteResult(result, job.keep_outputs, job.work_in_output)
556 self._SendResult(result)
558 # Just build the currently checked-out build
559 result, request_config = self.RunCommit(None, brd, work_dir, True,
560 self.builder.config_only, True,
561 self.builder.force_build_failures, job.work_in_output,
563 result.commit_upto = 0
564 self._WriteResult(result, job.keep_outputs, job.work_in_output)
565 self._SendResult(result)
568 """Our thread's run function
570 This thread picks a job from the queue, runs it, and then goes to the
574 job = self.builder.queue.get()
577 except Exception as e:
578 print('Thread exception (use -T0 to run without threads):', e)
579 self.builder.thread_exceptions.append(e)
580 self.builder.queue.task_done()