Merge tag 'u-boot-rockchip-20200501' of https://gitlab.denx.de/u-boot/custodians...
[platform/kernel/u-boot.git] / tools / buildman / builderthread.py
1 # SPDX-License-Identifier: GPL-2.0+
2 # Copyright (c) 2014 Google, Inc
3 #
4
5 import errno
6 import glob
7 import os
8 import shutil
9 import sys
10 import threading
11
12 from patman import command
13 from patman import gitutil
14
15 RETURN_CODE_RETRY = -1
16
17 def Mkdir(dirname, parents = False):
18     """Make a directory if it doesn't already exist.
19
20     Args:
21         dirname: Directory to create
22     """
23     try:
24         if parents:
25             os.makedirs(dirname)
26         else:
27             os.mkdir(dirname)
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)
32                 sys.exit(1)
33             pass
34         else:
35             raise
36
37 class BuilderJob:
38     """Holds information about a job to be performed by a thread
39
40     Members:
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.
47     """
48     def __init__(self):
49         self.board = None
50         self.commits = []
51         self.keep_outputs = False
52         self.step = 1
53         self.work_in_output = False
54
55
56 class ResultThread(threading.Thread):
57     """This thread processes results from builder threads.
58
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.
61     """
62     def __init__(self, builder):
63         """Set up a new result thread
64
65         Args:
66             builder: Builder which will be sent each result
67         """
68         threading.Thread.__init__(self)
69         self.builder = builder
70
71     def run(self):
72         """Called to start up the result thread.
73
74         We collect the next result job and pass it on to the build.
75         """
76         while True:
77             result = self.builder.out_queue.get()
78             self.builder.ProcessResult(result)
79             self.builder.out_queue.task_done()
80
81
82 class BuilderThread(threading.Thread):
83     """This thread builds U-Boot for a particular board.
84
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.
87
88     Members:
89         builder: The builder which contains information we might need
90         thread_num: Our thread number (0-n-1), used to decide on a
91                 temporary directory
92     """
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
100
101     def Make(self, commit, brd, stage, cwd, *args, **kwargs):
102         """Run 'make' on a particular commit and board.
103
104         The source code will already be checked out, so the 'commit'
105         argument is only for information.
106
107         Args:
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()
116
117         Returns:
118             CommandResult object
119         """
120         return self.builder.do_make(commit, brd, stage, cwd, *args,
121                 **kwargs)
122
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.
126
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.
129
130         Args:
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
138                 failure
139             work_in_output: Use the output directory as the work directory and
140                 don't write to a separate output directory.
141
142         Returns:
143             tuple containing:
144                 - CommandResult object containing the results of the build
145                 - boolean indicating whether 'make config' is still needed
146         """
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:
152             out_dir = work_dir
153         else:
154             if self.per_board_out_dir:
155                 out_rel_dir = os.path.join('..', brd.target)
156             else:
157                 out_rel_dir = 'build'
158             out_dir = os.path.join(work_dir, out_rel_dir)
159
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:
168                 try:
169                     result.return_code = int(fd.readline())
170                 except ValueError:
171                     # The file may be empty due to running out of disk space.
172                     # Try a rebuild
173                     result.return_code = RETURN_CODE_RETRY
174
175             # Check the signal that the build needs to be retried
176             if result.return_code == RETURN_CODE_RETRY:
177                 will_build = True
178             elif will_build:
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
184                     will_build = False
185
186         if will_build:
187             # We are going to have to build it. First, get a toolchain
188             if not self.toolchain:
189                 try:
190                     self.toolchain = self.builder.toolchains.Select(brd.arch)
191                 except ValueError as err:
192                     result.return_code = 10
193                     result.stdout = ''
194                     result.stderr = str(err)
195                     # TODO(sjg@chromium.org): This gets swallowed, but needs
196                     # to be reported.
197
198             if self.toolchain:
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,
205                                          force=True)
206                 else:
207                     commit = 'current'
208
209                 # Set up the environment and command line
210                 env = self.toolchain.MakeEnvironment(self.builder.full_path)
211                 Mkdir(out_dir)
212                 args = []
213                 cwd = work_dir
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.
221                         #
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)
226                         cwd = None
227                         src_dir = os.getcwd()
228                     else:
229                         args.append('O=%s' % out_rel_dir)
230                 if self.builder.verbose_build:
231                     args.append('V=1')
232                 else:
233                     args.append('-s')
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]
239                 config_out = ''
240                 args.extend(self.builder.toolchains.GetMakeArguments(brd))
241                 args.extend(self.toolchain.MakeArgs())
242
243                 # If we need to reconfigure, do that now
244                 if do_config:
245                     config_out = ''
246                     if self.mrproper:
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:
255                     if config_only:
256                         args.append('cfg')
257                     result = self.Make(commit, brd, 'build', cwd, *args,
258                             env=env)
259                 result.stderr = result.stderr.replace(src_dir + '/', '')
260                 if self.builder.verbose_build:
261                     result.stdout = config_out + result.stdout
262             else:
263                 result.return_code = 1
264                 result.stderr = 'No tool chain for %s\n' % brd.arch
265             result.already_done = False
266
267         result.toolchain = self.toolchain
268         result.brd = brd
269         result.commit_upto = commit_upto
270         result.out_dir = out_dir
271         return result, do_config
272
273     def _WriteResult(self, result, keep_outputs, work_in_output):
274         """Write a built result to the output directory.
275
276         Args:
277             result: CommandResult object containing result to write
278             keep_outputs: True to store the output binaries, False
279                 to delete them
280             work_in_output: Use the output directory as the work directory and
281                 don't write to a separate output directory.
282         """
283         # Fatal error
284         if result.return_code < 0:
285             return
286
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
289         # it.
290         maybe_aborted =  result.stderr and 'No child processes' in result.stderr
291
292         if result.already_done:
293             return
294
295         # Write the output and stderr
296         output_dir = self.builder._GetOutputDir(result.commit_upto)
297         Mkdir(output_dir)
298         build_dir = self.builder.GetBuildDir(result.commit_upto,
299                 result.brd.target)
300         Mkdir(build_dir)
301
302         outfile = os.path.join(build_dir, 'log')
303         with open(outfile, 'w') as fd:
304             if result.stdout:
305                 fd.write(result.stdout)
306
307         errfile = self.builder.GetErrFile(result.commit_upto,
308                 result.brd.target)
309         if result.stderr:
310             with open(errfile, 'w') as fd:
311                 fd.write(result.stderr)
312         elif os.path.exists(errfile):
313             os.remove(errfile)
314
315         if result.toolchain:
316             # Write the build result and toolchain information.
317             done_file = self.builder.GetDoneFile(result.commit_upto,
318                     result.brd.target)
319             with open(done_file, 'w') as fd:
320                 if maybe_aborted:
321                     # Special code to indicate we need to retry
322                     fd.write('%s' % RETURN_CODE_RETRY)
323                 else:
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)
331
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)
337             lines = []
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)
343                 if nm_result.stdout:
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)
348
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)
353                 rodata_size = ''
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]
363
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] + ' ' +
370                                  rodata_size)
371
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'])
382
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
386             # rodata size
387             if len(lines):
388                 sizes = self.builder.GetSizesFile(result.commit_upto,
389                                 result.brd.target)
390                 with open(sizes, 'w') as fd:
391                     print('\n'.join(lines), file=fd)
392
393         if not work_in_output:
394             # Write out the configuration files, with a special case for SPL
395             for dirname in ['', 'spl', 'tpl']:
396                 self.CopyFiles(
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'])
401
402             # Now write the actual build output
403             if keep_outputs:
404                 self.CopyFiles(
405                     result.out_dir, build_dir, '',
406                     ['u-boot*', '*.bin', '*.map', '*.img', 'MLO', 'SPL',
407                      'include/autoconf.mk', 'spl/u-boot-spl*'])
408
409     def CopyFiles(self, out_dir, build_dir, dirname, patterns):
410         """Copy files from the build directory to the output.
411
412         Args:
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
418         """
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)
423                 if dirname:
424                     base, ext = os.path.splitext(target)
425                     if ext:
426                         target = '%s-%s%s' % (base, dirname, ext)
427                 shutil.copy(fname, os.path.join(build_dir, target))
428
429     def RunJob(self, job):
430         """Run a single job
431
432         A job consists of a building a list of commits for a particular board.
433
434         Args:
435             job: Job to build
436         """
437         brd = job.board
438         work_dir = self.builder.GetThreadDir(self.thread_num)
439         self.toolchain = None
440         if job.commits:
441             # Run 'make board_defconfig' on the first commit
442             do_config = True
443             commit_upto  = 0
444             force_build = False
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
455                     # with a reconfig.
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)
460                         did_config = True
461                 if not self.builder.force_reconfig:
462                     do_config = request_config
463
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
477                 # have problems).
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
481                     # reconfigure.
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'.
486                     do_config = True
487                     force_build = True
488                 else:
489                     force_build = False
490                     if self.builder.force_config_on_failure:
491                         if failed:
492                             do_config = True
493                     result.commit_upto = commit_upto
494                     if result.return_code < 0:
495                         raise ValueError('Interrupt')
496
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)
500         else:
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)
509
510     def run(self):
511         """Our thread's run function
512
513         This thread picks a job from the queue, runs it, and then goes to the
514         next job.
515         """
516         while True:
517             job = self.builder.queue.get()
518             self.RunJob(job)
519             self.builder.queue.task_done()