1 # SPDX-License-Identifier: GPL-2.0+
2 # Copyright (c) 2014 Google, Inc
12 from patman import command
13 from patman import gitutil
15 RETURN_CODE_RETRY = -1
17 def Mkdir(dirname, parents = False):
18 """Make a directory if it doesn't already exist.
21 dirname: Directory to create
28 except OSError as err:
29 if err.errno == errno.EEXIST:
30 if os.path.realpath('.') == os.path.realpath(dirname):
31 print("Cannot create the current working directory '%s'!" % dirname)
38 """Holds information about a job to be performed by a thread
41 board: Board object to build
42 commits: List of Commit objects to build
43 keep_outputs: True to save build output files
44 step: 1 to process every commit, n to process every nth commit
45 work_in_output: Use the output directory as the work directory and
46 don't write to a separate output directory.
51 self.keep_outputs = False
53 self.work_in_output = False
56 class ResultThread(threading.Thread):
57 """This thread processes results from builder threads.
59 It simply passes the results on to the builder. There is only one
60 result thread, and this helps to serialise the build output.
62 def __init__(self, builder):
63 """Set up a new result thread
66 builder: Builder which will be sent each result
68 threading.Thread.__init__(self)
69 self.builder = builder
72 """Called to start up the result thread.
74 We collect the next result job and pass it on to the build.
77 result = self.builder.out_queue.get()
78 self.builder.ProcessResult(result)
79 self.builder.out_queue.task_done()
82 class BuilderThread(threading.Thread):
83 """This thread builds U-Boot for a particular board.
85 An input queue provides each new job. We run 'make' to build U-Boot
86 and then pass the results on to the output queue.
89 builder: The builder which contains information we might need
90 thread_num: Our thread number (0-n-1), used to decide on a
93 def __init__(self, builder, thread_num, mrproper, per_board_out_dir):
94 """Set up a new builder thread"""
95 threading.Thread.__init__(self)
96 self.builder = builder
97 self.thread_num = thread_num
98 self.mrproper = mrproper
99 self.per_board_out_dir = per_board_out_dir
101 def Make(self, commit, brd, stage, cwd, *args, **kwargs):
102 """Run 'make' on a particular commit and board.
104 The source code will already be checked out, so the 'commit'
105 argument is only for information.
108 commit: Commit object that is being built
109 brd: Board object that is being built
110 stage: Stage of the build. Valid stages are:
111 mrproper - can be called to clean source
112 config - called to configure for a board
113 build - the main make invocation - it does the build
114 args: A list of arguments to pass to 'make'
115 kwargs: A list of keyword arguments to pass to command.RunPipe()
120 return self.builder.do_make(commit, brd, stage, cwd, *args,
123 def RunCommit(self, commit_upto, brd, work_dir, do_config, config_only,
124 force_build, force_build_failures, work_in_output):
125 """Build a particular commit.
127 If the build is already done, and we are not forcing a build, we skip
128 the build and just return the previously-saved results.
131 commit_upto: Commit number to build (0...n-1)
132 brd: Board object to build
133 work_dir: Directory to which the source will be checked out
134 do_config: True to run a make <board>_defconfig on the source
135 config_only: Only configure the source, do not build it
136 force_build: Force a build even if one was previously done
137 force_build_failures: Force a bulid if the previous result showed
139 work_in_output: Use the output directory as the work directory and
140 don't write to a separate output directory.
144 - CommandResult object containing the results of the build
145 - boolean indicating whether 'make config' is still needed
147 # Create a default result - it will be overwritte by the call to
148 # self.Make() below, in the event that we do a build.
149 result = command.CommandResult()
150 result.return_code = 0
151 if work_in_output or self.builder.in_tree:
154 if self.per_board_out_dir:
155 out_rel_dir = os.path.join('..', brd.target)
157 out_rel_dir = 'build'
158 out_dir = os.path.join(work_dir, out_rel_dir)
160 # Check if the job was already completed last time
161 done_file = self.builder.GetDoneFile(commit_upto, brd.target)
162 result.already_done = os.path.exists(done_file)
163 will_build = (force_build or force_build_failures or
164 not result.already_done)
165 if result.already_done:
166 # Get the return code from that build and use it
167 with open(done_file, 'r') as fd:
169 result.return_code = int(fd.readline())
171 # The file may be empty due to running out of disk space.
173 result.return_code = RETURN_CODE_RETRY
175 # Check the signal that the build needs to be retried
176 if result.return_code == RETURN_CODE_RETRY:
179 err_file = self.builder.GetErrFile(commit_upto, brd.target)
180 if os.path.exists(err_file) and os.stat(err_file).st_size:
181 result.stderr = 'bad'
182 elif not force_build:
183 # The build passed, so no need to build it again
187 # We are going to have to build it. First, get a toolchain
188 if not self.toolchain:
190 self.toolchain = self.builder.toolchains.Select(brd.arch)
191 except ValueError as err:
192 result.return_code = 10
194 result.stderr = str(err)
195 # TODO(sjg@chromium.org): This gets swallowed, but needs
199 # Checkout the right commit
200 if self.builder.commits:
201 commit = self.builder.commits[commit_upto]
202 if self.builder.checkout:
203 git_dir = os.path.join(work_dir, '.git')
204 gitutil.Checkout(commit.hash, git_dir, work_dir,
209 # Set up the environment and command line
210 env = self.toolchain.MakeEnvironment(self.builder.full_path)
214 src_dir = os.path.realpath(work_dir)
215 if not self.builder.in_tree:
216 if commit_upto is None:
217 # In this case we are building in the original source
218 # directory (i.e. the current directory where buildman
219 # is invoked. The output directory is set to this
220 # thread's selected work directory.
222 # Symlinks can confuse U-Boot's Makefile since
223 # we may use '..' in our path, so remove them.
224 out_dir = os.path.realpath(out_dir)
225 args.append('O=%s' % out_dir)
227 src_dir = os.getcwd()
229 args.append('O=%s' % out_rel_dir)
230 if self.builder.verbose_build:
234 if self.builder.num_jobs is not None:
235 args.extend(['-j', str(self.builder.num_jobs)])
236 if self.builder.warnings_as_errors:
237 args.append('KCFLAGS=-Werror')
238 config_args = ['%s_defconfig' % brd.target]
240 args.extend(self.builder.toolchains.GetMakeArguments(brd))
241 args.extend(self.toolchain.MakeArgs())
243 # If we need to reconfigure, do that now
247 result = self.Make(commit, brd, 'mrproper', cwd,
248 'mrproper', *args, env=env)
249 config_out += result.combined
250 result = self.Make(commit, brd, 'config', cwd,
251 *(args + config_args), env=env)
252 config_out += result.combined
253 do_config = False # No need to configure next time
254 if result.return_code == 0:
257 result = self.Make(commit, brd, 'build', cwd, *args,
259 result.stderr = result.stderr.replace(src_dir + '/', '')
260 if self.builder.verbose_build:
261 result.stdout = config_out + result.stdout
263 result.return_code = 1
264 result.stderr = 'No tool chain for %s\n' % brd.arch
265 result.already_done = False
267 result.toolchain = self.toolchain
269 result.commit_upto = commit_upto
270 result.out_dir = out_dir
271 return result, do_config
273 def _WriteResult(self, result, keep_outputs, work_in_output):
274 """Write a built result to the output directory.
277 result: CommandResult object containing result to write
278 keep_outputs: True to store the output binaries, False
280 work_in_output: Use the output directory as the work directory and
281 don't write to a separate output directory.
284 if result.return_code < 0:
287 # If we think this might have been aborted with Ctrl-C, record the
288 # failure but not that we are 'done' with this board. A retry may fix
290 maybe_aborted = result.stderr and 'No child processes' in result.stderr
292 if result.already_done:
295 # Write the output and stderr
296 output_dir = self.builder._GetOutputDir(result.commit_upto)
298 build_dir = self.builder.GetBuildDir(result.commit_upto,
302 outfile = os.path.join(build_dir, 'log')
303 with open(outfile, 'w') as fd:
305 fd.write(result.stdout)
307 errfile = self.builder.GetErrFile(result.commit_upto,
310 with open(errfile, 'w') as fd:
311 fd.write(result.stderr)
312 elif os.path.exists(errfile):
316 # Write the build result and toolchain information.
317 done_file = self.builder.GetDoneFile(result.commit_upto,
319 with open(done_file, 'w') as fd:
321 # Special code to indicate we need to retry
322 fd.write('%s' % RETURN_CODE_RETRY)
324 fd.write('%s' % result.return_code)
325 with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
326 print('gcc', result.toolchain.gcc, file=fd)
327 print('path', result.toolchain.path, file=fd)
328 print('cross', result.toolchain.cross, file=fd)
329 print('arch', result.toolchain.arch, file=fd)
330 fd.write('%s' % result.return_code)
332 # Write out the image and function size information and an objdump
333 env = result.toolchain.MakeEnvironment(self.builder.full_path)
334 with open(os.path.join(build_dir, 'out-env'), 'w') as fd:
335 for var in sorted(env.keys()):
336 print('%s="%s"' % (var, env[var]), file=fd)
338 for fname in ['u-boot', 'spl/u-boot-spl']:
339 cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname]
340 nm_result = command.RunPipe([cmd], capture=True,
341 capture_stderr=True, cwd=result.out_dir,
342 raise_on_error=False, env=env)
344 nm = self.builder.GetFuncSizesFile(result.commit_upto,
345 result.brd.target, fname)
346 with open(nm, 'w') as fd:
347 print(nm_result.stdout, end=' ', file=fd)
349 cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname]
350 dump_result = command.RunPipe([cmd], capture=True,
351 capture_stderr=True, cwd=result.out_dir,
352 raise_on_error=False, env=env)
354 if dump_result.stdout:
355 objdump = self.builder.GetObjdumpFile(result.commit_upto,
356 result.brd.target, fname)
357 with open(objdump, 'w') as fd:
358 print(dump_result.stdout, end=' ', file=fd)
359 for line in dump_result.stdout.splitlines():
360 fields = line.split()
361 if len(fields) > 5 and fields[1] == '.rodata':
362 rodata_size = fields[2]
364 cmd = ['%ssize' % self.toolchain.cross, fname]
365 size_result = command.RunPipe([cmd], capture=True,
366 capture_stderr=True, cwd=result.out_dir,
367 raise_on_error=False, env=env)
368 if size_result.stdout:
369 lines.append(size_result.stdout.splitlines()[1] + ' ' +
372 # Extract the environment from U-Boot and dump it out
373 cmd = ['%sobjcopy' % self.toolchain.cross, '-O', 'binary',
374 '-j', '.rodata.default_environment',
375 'env/built-in.o', 'uboot.env']
376 command.RunPipe([cmd], capture=True,
377 capture_stderr=True, cwd=result.out_dir,
378 raise_on_error=False, env=env)
379 ubootenv = os.path.join(result.out_dir, 'uboot.env')
380 if not work_in_output:
381 self.CopyFiles(result.out_dir, build_dir, '', ['uboot.env'])
383 # Write out the image sizes file. This is similar to the output
384 # of binutil's 'size' utility, but it omits the header line and
385 # adds an additional hex value at the end of each line for the
388 sizes = self.builder.GetSizesFile(result.commit_upto,
390 with open(sizes, 'w') as fd:
391 print('\n'.join(lines), file=fd)
393 if not work_in_output:
394 # Write out the configuration files, with a special case for SPL
395 for dirname in ['', 'spl', 'tpl']:
397 result.out_dir, build_dir, dirname,
398 ['u-boot.cfg', 'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg',
399 '.config', 'include/autoconf.mk',
400 'include/generated/autoconf.h'])
402 # Now write the actual build output
405 result.out_dir, build_dir, '',
406 ['u-boot*', '*.bin', '*.map', '*.img', 'MLO', 'SPL',
407 'include/autoconf.mk', 'spl/u-boot-spl*'])
409 def CopyFiles(self, out_dir, build_dir, dirname, patterns):
410 """Copy files from the build directory to the output.
413 out_dir: Path to output directory containing the files
414 build_dir: Place to copy the files
415 dirname: Source directory, '' for normal U-Boot, 'spl' for SPL
416 patterns: A list of filenames (strings) to copy, each relative
417 to the build directory
419 for pattern in patterns:
420 file_list = glob.glob(os.path.join(out_dir, dirname, pattern))
421 for fname in file_list:
422 target = os.path.basename(fname)
424 base, ext = os.path.splitext(target)
426 target = '%s-%s%s' % (base, dirname, ext)
427 shutil.copy(fname, os.path.join(build_dir, target))
429 def RunJob(self, job):
432 A job consists of a building a list of commits for a particular board.
438 work_dir = self.builder.GetThreadDir(self.thread_num)
439 self.toolchain = None
441 # Run 'make board_defconfig' on the first commit
445 for commit_upto in range(0, len(job.commits), job.step):
446 result, request_config = self.RunCommit(commit_upto, brd,
447 work_dir, do_config, self.builder.config_only,
448 force_build or self.builder.force_build,
449 self.builder.force_build_failures,
450 work_in_output=job.work_in_output)
451 failed = result.return_code or result.stderr
452 did_config = do_config
453 if failed and not do_config:
454 # If our incremental build failed, try building again
456 if self.builder.force_config_on_failure:
457 result, request_config = self.RunCommit(commit_upto,
458 brd, work_dir, True, False, True, False,
459 work_in_output=job.work_in_output)
461 if not self.builder.force_reconfig:
462 do_config = request_config
464 # If we built that commit, then config is done. But if we got
465 # an warning, reconfig next time to force it to build the same
466 # files that created warnings this time. Otherwise an
467 # incremental build may not build the same file, and we will
468 # think that the warning has gone away.
469 # We could avoid this by using -Werror everywhere...
470 # For errors, the problem doesn't happen, since presumably
471 # the build stopped and didn't generate output, so will retry
472 # that file next time. So we could detect warnings and deal
473 # with them specially here. For now, we just reconfigure if
474 # anything goes work.
475 # Of course this is substantially slower if there are build
476 # errors/warnings (e.g. 2-3x slower even if only 10% of builds
478 if (failed and not result.already_done and not did_config and
479 self.builder.force_config_on_failure):
480 # If this build failed, try the next one with a
482 # Sometimes if the board_config.h file changes it can mess
483 # with dependencies, and we get:
484 # make: *** No rule to make target `include/autoconf.mk',
485 # needed by `depend'.
490 if self.builder.force_config_on_failure:
493 result.commit_upto = commit_upto
494 if result.return_code < 0:
495 raise ValueError('Interrupt')
497 # We have the build results, so output the result
498 self._WriteResult(result, job.keep_outputs, job.work_in_output)
499 self.builder.out_queue.put(result)
501 # Just build the currently checked-out build
502 result, request_config = self.RunCommit(None, brd, work_dir, True,
503 self.builder.config_only, True,
504 self.builder.force_build_failures,
505 work_in_output=job.work_in_output)
506 result.commit_upto = 0
507 self._WriteResult(result, job.keep_outputs, job.work_in_output)
508 self.builder.out_queue.put(result)
511 """Our thread's run function
513 This thread picks a job from the queue, runs it, and then goes to the
517 job = self.builder.queue.get()
519 self.builder.queue.task_done()