]> git.sur5r.net Git - u-boot/blob - tools/buildman/builderthread.py
buildman: Drop the 'alive' flag in BuilderThread
[u-boot] / tools / buildman / builderthread.py
1 # Copyright (c) 2014 Google, Inc
2 #
3 # SPDX-License-Identifier:      GPL-2.0+
4 #
5
6 import errno
7 import glob
8 import os
9 import shutil
10 import threading
11
12 import command
13 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             pass
31         else:
32             raise
33
34 class BuilderJob:
35     """Holds information about a job to be performed by a thread
36
37     Members:
38         board: Board object to build
39         commits: List of commit options to build.
40     """
41     def __init__(self):
42         self.board = None
43         self.commits = []
44
45
46 class ResultThread(threading.Thread):
47     """This thread processes results from builder threads.
48
49     It simply passes the results on to the builder. There is only one
50     result thread, and this helps to serialise the build output.
51     """
52     def __init__(self, builder):
53         """Set up a new result thread
54
55         Args:
56             builder: Builder which will be sent each result
57         """
58         threading.Thread.__init__(self)
59         self.builder = builder
60
61     def run(self):
62         """Called to start up the result thread.
63
64         We collect the next result job and pass it on to the build.
65         """
66         while True:
67             result = self.builder.out_queue.get()
68             self.builder.ProcessResult(result)
69             self.builder.out_queue.task_done()
70
71
72 class BuilderThread(threading.Thread):
73     """This thread builds U-Boot for a particular board.
74
75     An input queue provides each new job. We run 'make' to build U-Boot
76     and then pass the results on to the output queue.
77
78     Members:
79         builder: The builder which contains information we might need
80         thread_num: Our thread number (0-n-1), used to decide on a
81                 temporary directory
82     """
83     def __init__(self, builder, thread_num, incremental, per_board_out_dir):
84         """Set up a new builder thread"""
85         threading.Thread.__init__(self)
86         self.builder = builder
87         self.thread_num = thread_num
88         self.incremental = incremental
89         self.per_board_out_dir = per_board_out_dir
90
91     def Make(self, commit, brd, stage, cwd, *args, **kwargs):
92         """Run 'make' on a particular commit and board.
93
94         The source code will already be checked out, so the 'commit'
95         argument is only for information.
96
97         Args:
98             commit: Commit object that is being built
99             brd: Board object that is being built
100             stage: Stage of the build. Valid stages are:
101                         mrproper - can be called to clean source
102                         config - called to configure for a board
103                         build - the main make invocation - it does the build
104             args: A list of arguments to pass to 'make'
105             kwargs: A list of keyword arguments to pass to command.RunPipe()
106
107         Returns:
108             CommandResult object
109         """
110         return self.builder.do_make(commit, brd, stage, cwd, *args,
111                 **kwargs)
112
113     def RunCommit(self, commit_upto, brd, work_dir, do_config, force_build,
114                   force_build_failures):
115         """Build a particular commit.
116
117         If the build is already done, and we are not forcing a build, we skip
118         the build and just return the previously-saved results.
119
120         Args:
121             commit_upto: Commit number to build (0...n-1)
122             brd: Board object to build
123             work_dir: Directory to which the source will be checked out
124             do_config: True to run a make <board>_defconfig on the source
125             force_build: Force a build even if one was previously done
126             force_build_failures: Force a bulid if the previous result showed
127                 failure
128
129         Returns:
130             tuple containing:
131                 - CommandResult object containing the results of the build
132                 - boolean indicating whether 'make config' is still needed
133         """
134         # Create a default result - it will be overwritte by the call to
135         # self.Make() below, in the event that we do a build.
136         result = command.CommandResult()
137         result.return_code = 0
138         if self.builder.in_tree:
139             out_dir = work_dir
140         else:
141             if self.per_board_out_dir:
142                 out_rel_dir = os.path.join('..', brd.target)
143             else:
144                 out_rel_dir = 'build'
145             out_dir = os.path.join(work_dir, out_rel_dir)
146
147         # Check if the job was already completed last time
148         done_file = self.builder.GetDoneFile(commit_upto, brd.target)
149         result.already_done = os.path.exists(done_file)
150         will_build = (force_build or force_build_failures or
151             not result.already_done)
152         if result.already_done:
153             # Get the return code from that build and use it
154             with open(done_file, 'r') as fd:
155                 result.return_code = int(fd.readline())
156
157             # Check the signal that the build needs to be retried
158             if result.return_code == RETURN_CODE_RETRY:
159                 will_build = True
160             elif will_build:
161                 err_file = self.builder.GetErrFile(commit_upto, brd.target)
162                 if os.path.exists(err_file) and os.stat(err_file).st_size:
163                     result.stderr = 'bad'
164                 elif not force_build:
165                     # The build passed, so no need to build it again
166                     will_build = False
167
168         if will_build:
169             # We are going to have to build it. First, get a toolchain
170             if not self.toolchain:
171                 try:
172                     self.toolchain = self.builder.toolchains.Select(brd.arch)
173                 except ValueError as err:
174                     result.return_code = 10
175                     result.stdout = ''
176                     result.stderr = str(err)
177                     # TODO(sjg@chromium.org): This gets swallowed, but needs
178                     # to be reported.
179
180             if self.toolchain:
181                 # Checkout the right commit
182                 if self.builder.commits:
183                     commit = self.builder.commits[commit_upto]
184                     if self.builder.checkout:
185                         git_dir = os.path.join(work_dir, '.git')
186                         gitutil.Checkout(commit.hash, git_dir, work_dir,
187                                          force=True)
188                 else:
189                     commit = 'current'
190
191                 # Set up the environment and command line
192                 env = self.toolchain.MakeEnvironment(self.builder.full_path)
193                 Mkdir(out_dir)
194                 args = []
195                 cwd = work_dir
196                 src_dir = os.path.realpath(work_dir)
197                 if not self.builder.in_tree:
198                     if commit_upto is None:
199                         # In this case we are building in the original source
200                         # directory (i.e. the current directory where buildman
201                         # is invoked. The output directory is set to this
202                         # thread's selected work directory.
203                         #
204                         # Symlinks can confuse U-Boot's Makefile since
205                         # we may use '..' in our path, so remove them.
206                         out_dir = os.path.realpath(out_dir)
207                         args.append('O=%s' % out_dir)
208                         cwd = None
209                         src_dir = os.getcwd()
210                     else:
211                         args.append('O=%s' % out_rel_dir)
212                 if self.builder.verbose_build:
213                     args.append('V=1')
214                 else:
215                     args.append('-s')
216                 if self.builder.num_jobs is not None:
217                     args.extend(['-j', str(self.builder.num_jobs)])
218                 config_args = ['%s_defconfig' % brd.target]
219                 config_out = ''
220                 args.extend(self.builder.toolchains.GetMakeArguments(brd))
221
222                 # If we need to reconfigure, do that now
223                 if do_config:
224                     config_out = ''
225                     if not self.incremental:
226                         result = self.Make(commit, brd, 'mrproper', cwd,
227                                 'mrproper', *args, env=env)
228                         config_out += result.combined
229                     result = self.Make(commit, brd, 'config', cwd,
230                             *(args + config_args), env=env)
231                     config_out += result.combined
232                     do_config = False   # No need to configure next time
233                 if result.return_code == 0:
234                     result = self.Make(commit, brd, 'build', cwd, *args,
235                             env=env)
236                 result.stderr = result.stderr.replace(src_dir + '/', '')
237                 if self.builder.verbose_build:
238                     result.stdout = config_out + result.stdout
239             else:
240                 result.return_code = 1
241                 result.stderr = 'No tool chain for %s\n' % brd.arch
242             result.already_done = False
243
244         result.toolchain = self.toolchain
245         result.brd = brd
246         result.commit_upto = commit_upto
247         result.out_dir = out_dir
248         return result, do_config
249
250     def _WriteResult(self, result, keep_outputs):
251         """Write a built result to the output directory.
252
253         Args:
254             result: CommandResult object containing result to write
255             keep_outputs: True to store the output binaries, False
256                 to delete them
257         """
258         # Fatal error
259         if result.return_code < 0:
260             return
261
262         # If we think this might have been aborted with Ctrl-C, record the
263         # failure but not that we are 'done' with this board. A retry may fix
264         # it.
265         maybe_aborted =  result.stderr and 'No child processes' in result.stderr
266
267         if result.already_done:
268             return
269
270         # Write the output and stderr
271         output_dir = self.builder._GetOutputDir(result.commit_upto)
272         Mkdir(output_dir)
273         build_dir = self.builder.GetBuildDir(result.commit_upto,
274                 result.brd.target)
275         Mkdir(build_dir)
276
277         outfile = os.path.join(build_dir, 'log')
278         with open(outfile, 'w') as fd:
279             if result.stdout:
280                 fd.write(result.stdout)
281
282         errfile = self.builder.GetErrFile(result.commit_upto,
283                 result.brd.target)
284         if result.stderr:
285             with open(errfile, 'w') as fd:
286                 fd.write(result.stderr)
287         elif os.path.exists(errfile):
288             os.remove(errfile)
289
290         if result.toolchain:
291             # Write the build result and toolchain information.
292             done_file = self.builder.GetDoneFile(result.commit_upto,
293                     result.brd.target)
294             with open(done_file, 'w') as fd:
295                 if maybe_aborted:
296                     # Special code to indicate we need to retry
297                     fd.write('%s' % RETURN_CODE_RETRY)
298                 else:
299                     fd.write('%s' % result.return_code)
300             with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
301                 print >>fd, 'gcc', result.toolchain.gcc
302                 print >>fd, 'path', result.toolchain.path
303                 print >>fd, 'cross', result.toolchain.cross
304                 print >>fd, 'arch', result.toolchain.arch
305                 fd.write('%s' % result.return_code)
306
307             with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
308                 print >>fd, 'gcc', result.toolchain.gcc
309                 print >>fd, 'path', result.toolchain.path
310
311             # Write out the image and function size information and an objdump
312             env = result.toolchain.MakeEnvironment(self.builder.full_path)
313             lines = []
314             for fname in ['u-boot', 'spl/u-boot-spl']:
315                 cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname]
316                 nm_result = command.RunPipe([cmd], capture=True,
317                         capture_stderr=True, cwd=result.out_dir,
318                         raise_on_error=False, env=env)
319                 if nm_result.stdout:
320                     nm = self.builder.GetFuncSizesFile(result.commit_upto,
321                                     result.brd.target, fname)
322                     with open(nm, 'w') as fd:
323                         print >>fd, nm_result.stdout,
324
325                 cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname]
326                 dump_result = command.RunPipe([cmd], capture=True,
327                         capture_stderr=True, cwd=result.out_dir,
328                         raise_on_error=False, env=env)
329                 rodata_size = ''
330                 if dump_result.stdout:
331                     objdump = self.builder.GetObjdumpFile(result.commit_upto,
332                                     result.brd.target, fname)
333                     with open(objdump, 'w') as fd:
334                         print >>fd, dump_result.stdout,
335                     for line in dump_result.stdout.splitlines():
336                         fields = line.split()
337                         if len(fields) > 5 and fields[1] == '.rodata':
338                             rodata_size = fields[2]
339
340                 cmd = ['%ssize' % self.toolchain.cross, fname]
341                 size_result = command.RunPipe([cmd], capture=True,
342                         capture_stderr=True, cwd=result.out_dir,
343                         raise_on_error=False, env=env)
344                 if size_result.stdout:
345                     lines.append(size_result.stdout.splitlines()[1] + ' ' +
346                                  rodata_size)
347
348             # Write out the image sizes file. This is similar to the output
349             # of binutil's 'size' utility, but it omits the header line and
350             # adds an additional hex value at the end of each line for the
351             # rodata size
352             if len(lines):
353                 sizes = self.builder.GetSizesFile(result.commit_upto,
354                                 result.brd.target)
355                 with open(sizes, 'w') as fd:
356                     print >>fd, '\n'.join(lines)
357
358         # Write out the configuration files, with a special case for SPL
359         for dirname in ['', 'spl', 'tpl']:
360             self.CopyFiles(result.out_dir, build_dir, dirname, ['u-boot.cfg',
361                 'spl/u-boot-spl.cfg', 'tpl/u-boot-tpl.cfg', '.config',
362                 'include/autoconf.mk', 'include/generated/autoconf.h'])
363
364         # Now write the actual build output
365         if keep_outputs:
366             self.CopyFiles(result.out_dir, build_dir, '', ['u-boot*', '*.bin',
367                 '*.map', '*.img', 'MLO', 'SPL', 'include/autoconf.mk',
368                 'spl/u-boot-spl*'])
369
370     def CopyFiles(self, out_dir, build_dir, dirname, patterns):
371         """Copy files from the build directory to the output.
372
373         Args:
374             out_dir: Path to output directory containing the files
375             build_dir: Place to copy the files
376             dirname: Source directory, '' for normal U-Boot, 'spl' for SPL
377             patterns: A list of filenames (strings) to copy, each relative
378                to the build directory
379         """
380         for pattern in patterns:
381             file_list = glob.glob(os.path.join(out_dir, dirname, pattern))
382             for fname in file_list:
383                 target = os.path.basename(fname)
384                 if dirname:
385                     base, ext = os.path.splitext(target)
386                     if ext:
387                         target = '%s-%s%s' % (base, dirname, ext)
388                 shutil.copy(fname, os.path.join(build_dir, target))
389
390     def RunJob(self, job):
391         """Run a single job
392
393         A job consists of a building a list of commits for a particular board.
394
395         Args:
396             job: Job to build
397         """
398         brd = job.board
399         work_dir = self.builder.GetThreadDir(self.thread_num)
400         self.toolchain = None
401         if job.commits:
402             # Run 'make board_defconfig' on the first commit
403             do_config = True
404             commit_upto  = 0
405             force_build = False
406             for commit_upto in range(0, len(job.commits), job.step):
407                 result, request_config = self.RunCommit(commit_upto, brd,
408                         work_dir, do_config,
409                         force_build or self.builder.force_build,
410                         self.builder.force_build_failures)
411                 failed = result.return_code or result.stderr
412                 did_config = do_config
413                 if failed and not do_config:
414                     # If our incremental build failed, try building again
415                     # with a reconfig.
416                     if self.builder.force_config_on_failure:
417                         result, request_config = self.RunCommit(commit_upto,
418                             brd, work_dir, True, True, False)
419                         did_config = True
420                 if not self.builder.force_reconfig:
421                     do_config = request_config
422
423                 # If we built that commit, then config is done. But if we got
424                 # an warning, reconfig next time to force it to build the same
425                 # files that created warnings this time. Otherwise an
426                 # incremental build may not build the same file, and we will
427                 # think that the warning has gone away.
428                 # We could avoid this by using -Werror everywhere...
429                 # For errors, the problem doesn't happen, since presumably
430                 # the build stopped and didn't generate output, so will retry
431                 # that file next time. So we could detect warnings and deal
432                 # with them specially here. For now, we just reconfigure if
433                 # anything goes work.
434                 # Of course this is substantially slower if there are build
435                 # errors/warnings (e.g. 2-3x slower even if only 10% of builds
436                 # have problems).
437                 if (failed and not result.already_done and not did_config and
438                         self.builder.force_config_on_failure):
439                     # If this build failed, try the next one with a
440                     # reconfigure.
441                     # Sometimes if the board_config.h file changes it can mess
442                     # with dependencies, and we get:
443                     # make: *** No rule to make target `include/autoconf.mk',
444                     #     needed by `depend'.
445                     do_config = True
446                     force_build = True
447                 else:
448                     force_build = False
449                     if self.builder.force_config_on_failure:
450                         if failed:
451                             do_config = True
452                     result.commit_upto = commit_upto
453                     if result.return_code < 0:
454                         raise ValueError('Interrupt')
455
456                 # We have the build results, so output the result
457                 self._WriteResult(result, job.keep_outputs)
458                 self.builder.out_queue.put(result)
459         else:
460             # Just build the currently checked-out build
461             result, request_config = self.RunCommit(None, brd, work_dir, True,
462                         True, self.builder.force_build_failures)
463             result.commit_upto = 0
464             self._WriteResult(result, job.keep_outputs)
465             self.builder.out_queue.put(result)
466
467     def run(self):
468         """Our thread's run function
469
470         This thread picks a job from the queue, runs it, and then goes to the
471         next job.
472         """
473         while True:
474             job = self.builder.queue.get()
475             self.RunJob(job)
476             self.builder.queue.task_done()