summaryrefslogtreecommitdiff
path: root/utils/llvm-compilers-check
blob: 3173027759b73ff4ea6b3f3a21d9d83eb3cf71b1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
#!/usr/bin/python3
##===- utils/llvmbuild - Build the LLVM project ----------------*-python-*-===##
#
#                     The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
#
# This script builds many different flavors of the LLVM ecosystem.  It
# will build LLVM, Clang and dragonegg as well as run tests on them.
# This script is convenient to use to check builds and tests before
# committing changes to the upstream repository
#
# A typical source setup uses three trees and looks like this:
#
# official
#   dragonegg
#   llvm
#     tools
#       clang
# staging
#   dragonegg
#   llvm
#     tools
#       clang
# commit
#   dragonegg
#   llvm
#     tools
#       clang
#
# In a typical workflow, the "official" tree always contains unchanged
# sources from the main LLVM project repositories.  The "staging" tree
# is where local work is done.  A set of changes resides there waiting
# to be moved upstream.  The "commit" tree is where changes from
# "staging" make their way upstream.  Individual incremental changes
# from "staging" are applied to "commit" and committed upstream after
# a successful build and test run.  A successful build is one in which
# testing results in no more failures than seen in the testing of the
# "official" tree.
# 
# A build may be invoked as such:
#
# llvmbuild --src=~/llvm/commit --src=~/llvm/staging --src=~/llvm/official
#   --build=debug --build=release --build=paranoid
#   --prefix=/home/greened/install --builddir=/home/greened/build
#
# This will build the LLVM ecosystem, including LLVM, Clangand
# dragonegg, putting build results in ~/build and installing tools in
# ~/install.  llvm-compilers-check creates separate build and install
# directories for each source/build flavor.  In the above example,
# llvmbuild will build debug, release and paranoid (debug+checks)
# flavors from each source tree (official, staging and commit) for a
# total of nine builds.  All builds will be run in parallel.
#
# The user may control parallelism via the --jobs and --threads
# switches.  --jobs tells llvm-compilers-checl the maximum total
# number of builds to activate in parallel.  The user may think of it
# as equivalent to the GNU make -j switch.  --threads tells
# llvm-compilers-check how many worker threads to use to accomplish
# those builds.  If --threads is less than --jobs, --threads workers
# will be launched and each one will pick a source/flavor combination
# to build.  Then llvm-compilers-check will invoke GNU make with -j
# (--jobs / --threads) to use up the remaining job capacity.  Once a
# worker is finished with a build, it will pick another combination
# off the list and start building it.
#
##===----------------------------------------------------------------------===##

import optparse
import os
import sys
import threading
import queue
import logging
import traceback
import subprocess
import re

# TODO: Use shutil.which when it is available (3.2 or later)
def find_executable(executable, path=None):
    """Try to find 'executable' in the directories listed in 'path' (a
    string listing directories separated by 'os.pathsep'; defaults to
    os.environ['PATH']).  Returns the complete filename or None if not
    found
    """
    if path is None:
        path = os.environ['PATH']
    paths = path.split(os.pathsep)
    extlist = ['']
    if os.name == 'os2':
        (base, ext) = os.path.splitext(executable)
        # executable files on OS/2 can have an arbitrary extension, but
        # .exe is automatically appended if no dot is present in the name
        if not ext:
            executable = executable + ".exe"
    elif sys.platform == 'win32':
        pathext = os.environ['PATHEXT'].lower().split(os.pathsep)
        (base, ext) = os.path.splitext(executable)
        if ext.lower() not in pathext:
            extlist = pathext
    for ext in extlist:
        execname = executable + ext
        if os.path.isfile(execname):
            return execname
        else:
            for p in paths:
                f = os.path.join(p, execname)
                if os.path.isfile(f):
                    return f
    else:
        return None

def is_executable(fpath):
    return os.path.exists(fpath) and os.access(fpath, os.X_OK)

def add_options(parser):
    parser.add_option("-v", "--verbose", action="store_true",
                      default=False,
                      help=("Output informational messages"
                            " [default: %default]"))
    parser.add_option("--src", action="append",
                      help=("Top-level source directory [default: %default]"))
    parser.add_option("--build", action="append",
                      help=("Build types to run [default: %default]"))
    parser.add_option("--cc", default=find_executable("cc"),
                      help=("The C compiler to use [default: %default]"))
    parser.add_option("--cxx", default=find_executable("c++"),
                      help=("The C++ compiler to use [default: %default]"))
    parser.add_option("--threads", default=4, type="int",
                      help=("The number of worker threads to use "
                            "[default: %default]"))
    parser.add_option("--jobs", "-j", default=8, type="int",
                      help=("The number of simultaneous build jobs "
                            "[default: %default]"))
    parser.add_option("--prefix",
                      help=("Root install directory [default: %default]"))
    parser.add_option("--builddir",
                      help=("Root build directory [default: %default]"))
    parser.add_option("--extra-llvm-config-flags", default="",
                      help=("Extra flags to pass to llvm configure [default: %default]"))
    parser.add_option("--force-configure", default=False, action="store_true",
                      help=("Force reconfigure of all components"))
    parser.add_option("--no-dragonegg", default=False, action="store_true",
                      help=("Do not build dragonegg"))
    parser.add_option("--no-install", default=False, action="store_true",
                      help=("Do not do installs"))
    parser.add_option("--keep-going", default=False, action="store_true",
                      help=("Keep going after failures"))
    return

def check_options(parser, options, valid_builds):
    # See if we're building valid flavors.
    for build in options.build:
        if (build not in valid_builds):
            parser.error("'" + build + "' is not a valid build flavor "
                         + str(valid_builds))

    # See if we can find source directories.
    for src in options.src:
        for component in components:
            component = component.rstrip("2")
            compsrc = src + "/" + component
            if (not os.path.isdir(compsrc)):
                parser.error("'" + compsrc + "' does not exist")

    # See if we can find the compilers
    options.cc = find_executable(options.cc)
    options.cxx = find_executable(options.cxx)

    return

# Find a unique short name for the given set of paths.  This searches
# back through path components until it finds unique component names
# among all given paths.
def get_path_abbrevs(paths):
    # Find the number of common starting characters in the last component
    # of the paths.
    unique_paths = list(paths)

    class NotFoundException(Exception): pass

    # Find a unique component of each path.
    unique_bases = unique_paths[:]
    found = 0
    while len(unique_paths) > 0:
        bases = [os.path.basename(src) for src in unique_paths]
        components = { c for c in bases }
        # Account for single entry in paths.
        if len(components) > 1 or len(components) == len(bases):
            # We found something unique.
            for c in components:
                if bases.count(c) == 1:
                   index = bases.index(c)
                   unique_bases[index] = c
                   # Remove the corresponding path from the set under
                   # consideration.
                   unique_paths[index] = None
            unique_paths = [ p for p in unique_paths if p is not None ]
        unique_paths = [os.path.dirname(src) for src in unique_paths]

    if len(unique_paths) > 0:
        raise NotFoundException()

    abbrevs = dict(zip(paths, [base for base in unique_bases]))

    return abbrevs

# Given a set of unique names, find a short character sequence that
# uniquely identifies them.
def get_short_abbrevs(unique_bases):
    # Find a unique start character for each path base.
    my_unique_bases = unique_bases[:]
    unique_char_starts = unique_bases[:]
    while len(my_unique_bases) > 0:
        for start, char_tuple in enumerate(zip(*[base
                                                 for base in my_unique_bases])):
            chars = { c for c in char_tuple }
            # Account for single path.
            if len(chars) > 1 or len(chars) == len(char_tuple):
                # We found something unique.
                for c in chars:
                    if char_tuple.count(c) == 1:
                        index = char_tuple.index(c)
                        unique_char_starts[index] = start
                        # Remove the corresponding path from the set under
                        # consideration.
                        my_unique_bases[index] = None
                my_unique_bases = [ b for b in my_unique_bases
                                    if b is not None ]
                break

    if len(my_unique_bases) > 0:
        raise NotFoundException()

    abbrevs = [abbrev[start_index:start_index+3]
               for abbrev, start_index
               in zip([base for base in unique_bases],
                      [index for index in unique_char_starts])]

    abbrevs = dict(zip(unique_bases, abbrevs))

    return abbrevs

class Builder(threading.Thread):
    class ExecutableNotFound(Exception): pass
    class FileNotExecutable(Exception): pass

    def __init__(self, work_queue, jobs,
                 build_abbrev, source_abbrev,
                 options):
        super().__init__()
        self.work_queue = work_queue
        self.jobs = jobs
        self.cc = options.cc
        self.cxx = options.cxx
        self.build_abbrev = build_abbrev
        self.source_abbrev = source_abbrev
        self.build_prefix = options.builddir
        self.install_prefix = options.prefix
        self.options = options
        self.component_abbrev = dict(
            llvm="llvm",
            dragonegg="degg")
    def run(self):
        while True:
            try:
                source, build = self.work_queue.get()
                self.dobuild(source, build)
            except:
                traceback.print_exc()
            finally:
                self.work_queue.task_done()

    def execute(self, command, execdir, env, component):
        prefix = self.component_abbrev[component.replace("-", "_")]
        pwd = os.getcwd()
        if not os.path.exists(execdir):
            os.makedirs(execdir)

        execenv = os.environ.copy()

        for key, value in env.items():
            execenv[key] = value

        self.logger.debug("[" + prefix + "] " + "env " + str(env) + " "
                          + " ".join(command));

        try:
            proc = subprocess.Popen(command,
                                    cwd=execdir,
                                    env=execenv,
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.STDOUT)

            line = proc.stdout.readline()
            while line:
                self.logger.info("[" + prefix + "] "
                                 + str(line, "utf-8").rstrip())
                line = proc.stdout.readline()

            (stdoutdata, stderrdata) = proc.communicate()
            retcode = proc.wait()

            return retcode

        except:
            traceback.print_exc()

    # Get a list of C++ include directories to pass to clang.
    def get_includes(self):
        # Assume we're building with g++ for now.
        command = [self.cxx]
        command += ["-v", "-x", "c++", "/dev/null", "-fsyntax-only"]
        includes = []
        self.logger.debug(command)
        try:
            proc = subprocess.Popen(command,
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.STDOUT)

            gather = False
            line = proc.stdout.readline()
            while line:
                self.logger.debug(line)
                if re.search("End of search list", str(line)) is not None:
                    self.logger.debug("Stop Gather")
                    gather = False
                if gather:
                    includes.append(str(line, "utf-8").strip())
                if re.search("#include <...> search starts", str(line)) is not None:
                    self.logger.debug("Start Gather")
                    gather = True
                line = proc.stdout.readline()

        except:
            traceback.print_exc()
        self.logger.debug(includes)
        return includes

    def dobuild(self, source, build):
        build_suffix = ""

        ssabbrev = get_short_abbrevs([ab for ab in self.source_abbrev.values()])

        prefix = "[" + ssabbrev[self.source_abbrev[source]] + "-" + self.build_abbrev[build] + "]"
        self.install_prefix += "/" + self.source_abbrev[source] + "/" + build
        build_suffix += "/" + self.source_abbrev[source] + "/" + build

        self.logger = logging.getLogger(prefix)

        self.logger.debug(self.install_prefix)

        # Assume we're building with gcc for now.
        cxxincludes = self.get_includes()
        cxxroot = os.path.dirname(cxxincludes[0]) # Remove the version
        cxxroot = os.path.dirname(cxxroot)        # Remove the c++
        cxxroot = os.path.dirname(cxxroot)        # Remove the include

        configure_flags = dict(
            llvm=dict(debug=["--prefix=" + self.install_prefix,
                             "--enable-werror",
                             "--enable-assertions",
                             "--disable-optimized",
                             "--with-gcc-toolchain=" + cxxroot],
                      release=["--prefix=" + self.install_prefix,
                               "--enable-werror",
                               "--enable-optimized",
                               "--with-gcc-toolchain=" + cxxroot],
                      paranoid=["--prefix=" + self.install_prefix,
                                "--enable-werror",
                                "--enable-assertions",
                                "--enable-expensive-checks",
                                "--disable-optimized",
                                "--with-gcc-toolchain=" + cxxroot]),
            dragonegg=dict(debug=[],
                           release=[],
                           paranoid=[]))

        configure_env = dict(
            llvm=dict(debug=dict(CC=self.cc,
                                 CXX=self.cxx),
                      release=dict(CC=self.cc,
                                   CXX=self.cxx),
                      paranoid=dict(CC=self.cc,
                                    CXX=self.cxx)),
            dragonegg=dict(debug=dict(CC=self.cc,
                                      CXX=self.cxx),
                           release=dict(CC=self.cc,
                                        CXX=self.cxx),
                           paranoid=dict(CC=self.cc,
                                         CXX=self.cxx)))

        make_flags = dict(
            llvm=dict(debug=["-j" + str(self.jobs)],
                      release=["-j" + str(self.jobs)],
                      paranoid=["-j" + str(self.jobs)]),
            dragonegg=dict(debug=["-j" + str(self.jobs)],
                           release=["-j" + str(self.jobs)],
                           paranoid=["-j" + str(self.jobs)]))

        make_env = dict(
            llvm=dict(debug=dict(),
                      release=dict(),
                      paranoid=dict()),
            dragonegg=dict(debug=dict(GCC=self.cc,
                                      LLVM_CONFIG=self.install_prefix + "/bin/llvm-config"),
                           release=dict(GCC=self.cc,
                                        LLVM_CONFIG=self.install_prefix + "/bin/llvm-config"),
                           paranoid=dict(GCC=self.cc,
                                         LLVM_CONFIG=self.install_prefix + "/bin/llvm-config")))

        make_install_flags = dict(
            llvm=dict(debug=["install"],
                      release=["install"],
                      paranoid=["install"]),
            dragonegg=dict(debug=["install"],
                           release=["install"],
                           paranoid=["install"]))

        make_install_env = dict(
            llvm=dict(debug=dict(),
                      release=dict(),
                      paranoid=dict()),
            dragonegg=dict(debug=dict(),
                           release=dict(),
                           paranoid=dict()))

        make_check_flags = dict(
            llvm=dict(debug=["check"],
                      release=["check"],
                      paranoid=["check"]),
            dragonegg=dict(debug=["check"],
                           release=["check"],
                           paranoid=["check"]))

        make_check_env = dict(
            llvm=dict(debug=dict(),
                      release=dict(),
                      paranoid=dict()),
            dragonegg=dict(debug=dict(),
                           release=dict(),
                           paranoid=dict()))

        for component in components:
            comp = component[:]

            if (self.options.no_dragonegg):
                if (comp == 'dragonegg'):
                    self.logger.info("Skipping " + component + " in "
                                     + builddir)
                    continue

            srcdir = source + "/" + comp.rstrip("2")
            builddir = self.build_prefix + "/" + comp + "/" + build_suffix
            installdir = self.install_prefix

            comp_key = comp.replace("-", "_")

            config_args = configure_flags[comp_key][build][:]
            config_args.extend(getattr(self.options,
                                       "extra_" + comp_key.rstrip("2")
                                       + "_config_flags",
                                       "").split())

            self.logger.info("Configuring " + component + " in " + builddir)
            configrc = self.configure(component, srcdir, builddir,
                                      config_args,
                                      configure_env[comp_key][build])

            if (configrc == None) :
                self.logger.info("[None] Failed to configure " + component + " in " + installdir)

            if (configrc == 0 or self.options.keep_going) :
                self.logger.info("Building " + component + " in " + builddir)
                self.logger.info("Build: make " + str(make_flags[comp_key][build]))
                buildrc = self.make(component, srcdir, builddir,
                                    make_flags[comp_key][build],
                                    make_env[comp_key][build])

                if (buildrc == None) :
                    self.logger.info("[None] Failed to build " + component + " in " + installdir)

                if (buildrc == 0 or self.options.keep_going) :
                    self.logger.info("Testing " + component + " in " + builddir)
                    self.logger.info("Test: make "
                                     + str(make_check_flags[comp_key][build]))
                    testrc = self.make(component, srcdir, builddir,
                                       make_check_flags[comp_key][build],
                                       make_check_env[comp_key][build])

                    if (testrc == None) :
                        self.logger.info("[None] Failed to test " + component + " in " + installdir)

                    if ((testrc == 0  or self.options.keep_going)
                        and not self.options.no_install):
                        self.logger.info("Installing " + component + " in " + installdir)
                        self.make(component, srcdir, builddir,
                                  make_install_flags[comp_key][build],
                                  make_install_env[comp_key][build])
                    else :
                        self.logger.info("Failed testing " + component + " in " + installdir)

                else :
                    self.logger.info("Failed to build " + component + " in " + installdir)

            else :
                self.logger.info("Failed to configure " + component + " in " + installdir)

    def configure(self, component, srcdir, builddir, flags, env):
        prefix = self.component_abbrev[component.replace("-", "_")]

        self.logger.debug("Configure " + str(flags) + " " + str(srcdir) + " -> "
                          + str(builddir))

        configure_files = dict(
            llvm=[(srcdir + "/configure", builddir + "/Makefile")],
            dragonegg=[(None,None)])


        doconfig = False
        for conf, mf in configure_files[component.replace("-", "_")]:
            if conf is None:
                # No configure necessary
                return 0

            if not os.path.exists(conf):
                self.logger.info("[" + prefix + "] Configure failed, no configure script " + conf)
                return -1

            if not os.path.exists(mf):
                self.logger.info("[" + prefix + "] Configure failed, no makefile " + mf)
                return -1

            if os.path.exists(conf) and os.path.exists(mf):
                confstat = os.stat(conf)
                makestat = os.stat(mf)
                if confstat.st_mtime > makestat.st_mtime:
                    doconfig = True
                    break
            else:
                doconfig = True
                break

        if not doconfig and not self.options.force_configure:
            return 0

        program = srcdir + "/configure"
        if not is_executable(program):
            self.logger.info("[" + prefix + "] Configure failed, cannot execute " + program)
            return -1

        args = [program]
        args += ["--verbose"]
        args += flags
        return self.execute(args, builddir, env, component)

    def make(self, component, srcdir, builddir, flags, env):
        program = find_executable("make")
        if program is None:
            raise ExecutableNotFound

        if not is_executable(program):
            raise FileNotExecutable

        args = [program]
        args += flags
        return self.execute(args, builddir, env, component)

# Global constants
build_abbrev = dict(debug="dbg", release="opt", paranoid="par")
components = ["llvm", "dragonegg"]

# Parse options
parser = optparse.OptionParser(version="%prog 1.0")
add_options(parser)
(options, args) = parser.parse_args()
check_options(parser, options, build_abbrev.keys());

if options.verbose:
    logging.basicConfig(level=logging.DEBUG,
                        format='%(name)-13s: %(message)s')
else:
    logging.basicConfig(level=logging.INFO,
                        format='%(name)-13s: %(message)s')

source_abbrev = get_path_abbrevs(set(options.src))

work_queue = queue.Queue()

jobs = options.jobs // options.threads
if jobs == 0:
    jobs = 1

numthreads = options.threads

logging.getLogger().info("Building with " + str(options.jobs) + " jobs and "
                         + str(numthreads) + " threads using " + str(jobs)
                         + " make jobs")

logging.getLogger().info("CC  = " + str(options.cc))
logging.getLogger().info("CXX = " + str(options.cxx))

for t in range(numthreads):
    builder = Builder(work_queue, jobs,
                      build_abbrev, source_abbrev,
                      options)
    builder.daemon = True
    builder.start()

for build in set(options.build):
    for source in set(options.src):
        work_queue.put((source, build))

work_queue.join()