Add a convenience tool for doing comparison builds of the LLVM

ecosystem.  This is a handy utility for checking changes before
committing them to the repository.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126136 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 706 insertions, 0 deletions

diff --git a/utils/llvmbuild b/utils/llvmbuild
new file mode 100755
index 0000000000..56a429f039
--- /dev/null
+++ b/utils/llvmbuild
@@ -0,0 +1,706 @@
+#!/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, llvm-gcc, 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
+#     trunk
+#   gcc
+#     trunk
+#   llvm
+#     trunk
+#       tools
+#         clang
+#     tags
+#       RELEASE_28
+#         tools
+#           clang
+#   llvm-gcc
+#     trunk
+#     tags
+#       RELEASE_28
+# staging
+#   dragonegg
+#     trunk
+#   gcc
+#     trunk
+#   llvm
+#     trunk
+#       tools
+#         clang
+#     tags
+#       RELEASE_28
+#         tools
+#           clang
+#   llvm-gcc
+#     trunk
+#     tags
+#       RELEASE_28
+# commit
+#   dragonegg
+#     trunk
+#   gcc
+#     trunk
+#   llvm
+#     trunk
+#       tools
+#         clang
+#     tags
+#       RELEASE_28
+#         tools
+#           clang
+#   llvm-gcc
+#     trunk
+#     tags
+#       RELEASE_28
+#
+# "gcc" above is the upstream FSF gcc and "gcc/trunk" refers to the
+# 4.5 branch as discussed in the dragonegg build guide.
+#
+# 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 --branch=trunk --branch=tags/RELEASE_28
+#   --build=debug --build=release --build=paranoid
+#   --prefix=/home/greened/install --builddir=/home/greened/build
+#
+# This will build the LLVM ecosystem, including LLVM, Clang, llvm-gcc,
+# gcc 4.5 and dragonegg, putting build results in ~/build and
+# installing tools in ~/install.  llvmbuild creates separate build and
+# install directories for each source/branch/build flavor.  In the
+# above example, llvmbuild will build debug, release and paranoid
+# (debug+checks) flavors of the trunk and RELEASE_28 branches from
+# each source tree (official, staging and commit) for a total of
+# eighteen builds.  All builds will be run in parallel.
+#
+# The user may control parallelism via the --jobs and --threads
+# switches.  --jobs tells llvmbuild 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 llvmbuild 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/branch/flavor combination to build.  Then llvmbuild
+# 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", default=["debug"],
+                      help=("Build types to run [default: %default]"))
+    parser.add_option("--branch", action="append",
+                      help=("Source branch to build [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]"))
+    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 ["llvm", "llvm-gcc", "gcc", "dragonegg"]:
+            compsrc = src + "/" + component
+            if (not os.path.isdir(compsrc)):
+                parser.error("'" + compsrc + "' does not exist")
+                if (options.branch is not None):
+                    for branch in options.branch:
+                        if (not os.path.isdir(os.path.join(compsrc, branch))):
+                            parser.error("'" + os.path.join(compsrc, branch)
+                                         + "' 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, cc, cxx, build_abbrev, source_abbrev,
+                 branch_abbrev, build_prefix, install_prefix):
+        super().__init__()
+        self.work_queue = work_queue
+        self.jobs = jobs
+        self.cc = cc
+        self.cxx = cxx
+        self.build_abbrev = build_abbrev
+        self.source_abbrev = source_abbrev
+        self.branch_abbrev = branch_abbrev
+        self.build_prefix = build_prefix
+        self.install_prefix = install_prefix
+        self.component_abbrev = dict(
+            llvm="llvm",
+            llvm_gcc="lgcc",
+            llvm2="llv2",
+            gcc="ugcc",
+            dagonegg="degg")
+    def run(self):
+        while True:
+            try:
+                source, branch, build = self.work_queue.get()
+                self.dobuild(source, branch, 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)
+
+        for key, value in env.items():
+            os.environ[key] = value
+ 
+        self.logger.debug("[" + prefix + "] " + "env " + str(env) + " "
+                          + " ".join(command));
+
+        try:
+            proc = subprocess.Popen(command,
+                                    cwd=execdir,
+                                    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()
+
+        except:
+            traceback.print_exc()
+
+        for key, value in env.items():
+            os.environ.pop(key)
+
+    # 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, branch, build):
+        build_suffix = ""
+
+        ssabbrev = get_short_abbrevs([ab for ab in self.source_abbrev.values()])
+
+        if branch is not None:
+            sbabbrev = get_short_abbrevs([ab for ab in self.branch_abbrev.values()])
+
+            prefix = "[" + ssabbrev[self.source_abbrev[source]] + "-" + sbabbrev[self.branch_abbrev[branch]] + "-" + self.build_abbrev[build] + "]"
+            self.install_prefix += "/" + self.source_abbrev[source] + "/" + branch + "/" + build
+            build_suffix += self.source_abbrev[source] + "/" + branch + "/" + build
+        else:
+            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 = cxxincludes[0]
+        cxxarch = os.path.basename(cxxincludes[1])
+
+        configure_flags = dict(
+            llvm=dict(debug=["--prefix=" + self.install_prefix,
+                             "--with-cxx-include-root=" + cxxroot,
+                             "--with-cxx-include-arch=" + cxxarch],
+                      release=["--prefix=" + self.install_prefix,
+                               "--enable-optimized",
+                               "--with-cxx-include-root=" + cxxroot,
+                               "--with-cxx-include-arch=" + cxxarch],
+                      paranoid=["--prefix=" + self.install_prefix,
+                                "--enable-expensive-checks",
+                                "--with-cxx-include-root=" + cxxroot,
+                                "--with-cxx-include-arch=" + cxxarch]),
+            llvm_gcc=dict(debug=["--prefix=" + self.install_prefix,
+                                 "--enable-checking",
+                                 "--program-prefix=llvm-",
+                                 "--enable-llvm=" + self.build_prefix + "/llvm/" + build_suffix,
+                                 "--enable-languages=c,c++,fortran"],
+                          release=["--prefix=" + self.install_prefix,
+                                   "--program-prefix=llvm-",
+                                   "--enable-llvm=" + self.build_prefix + "/llvm/" + build_suffix,
+                                   "--enable-languages=c,c++,fortran"],
+                          paranoid=["--prefix=" + self.install_prefix,
+                                    "--enable-checking",
+                                    "--program-prefix=llvm-",
+                                    "--enable-llvm=" + self.build_prefix + "/llvm/" + build_suffix,
+                                    "--enable-languages=c,c++,fortran"]),
+            llvm2=dict(debug=["--prefix=" + self.install_prefix,
+                              "--with-llvmgccdir=" + self.install_prefix + "/bin",
+                              "--with-cxx-include-root=" + cxxroot,
+                              "--with-cxx-include-arch=" + cxxarch],
+                       release=["--prefix=" + self.install_prefix,
+                                "--enable-optimized",
+                                "--with-llvmgccdir=" + self.install_prefix + "/bin",
+                                "--with-cxx-include-root=" + cxxroot,
+                                "--with-cxx-include-arch=" + cxxarch],
+                       paranoid=["--prefix=" + self.install_prefix,
+                                 "--enable-expensive-checks",
+                                 "--with-llvmgccdir=" + self.install_prefix + "/bin",
+                                 "--with-cxx-include-root=" + cxxroot,
+                                 "--with-cxx-include-arch=" + cxxarch]),
+            gcc=dict(debug=["--prefix=" + self.install_prefix,
+                            "--enable-checking"],
+                     release=["--prefix=" + self.install_prefix],
+                     paranoid=["--prefix=" + self.install_prefix,
+                               "--enable-checking"]),
+            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)),
+            llvm_gcc=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)),
+            llvm2=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)),
+            gcc=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)]),
+            llvm_gcc=dict(debug=["-j" + str(self.jobs),
+                                 "bootstrap"],
+                          release=["-j" + str(self.jobs),
+                                   "bootstrap"],
+                          paranoid=["-j" + str(self.jobs),
+                                    "bootstrap"]),
+            llvm2=dict(debug=["-j" + str(self.jobs)],
+                       release=["-j" + str(self.jobs)],
+                       paranoid=["-j" + str(self.jobs)]),
+            gcc=dict(debug=["-j" + str(self.jobs),
+                            "bootstrap"],
+                     release=["-j" + str(self.jobs),
+                              "bootstrap"],
+                     paranoid=["-j" + str(self.jobs),
+                               "bootstrap"]),
+            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()),
+            llvm_gcc=dict(debug=dict(),
+                          release=dict(),
+                          paranoid=dict()),
+            llvm2=dict(debug=dict(),
+                       release=dict(),
+                       paranoid=dict()),
+            gcc=dict(debug=dict(),
+                     release=dict(),
+                     paranoid=dict()),
+            dragonegg=dict(debug=dict(GCC=self.install_prefix + "/bin/gcc",
+                                      LLVM_CONFIG=self.install_prefix + "/bin/llvm-config"),
+                           release=dict(GCC=self.install_prefix + "/bin/gcc",
+                                        LLVM_CONFIG=self.install_prefix + "/bin/llvm-config"),
+                           paranoid=dict(GCC=self.install_prefix + "/bin/gcc",
+                                         LLVM_CONFIG=self.install_prefix + "/bin/llvm-config")))
+
+        make_install_flags = dict(
+            llvm=dict(debug=["install"],
+                      release=["install"],
+                      paranoid=["install"]),
+            llvm_gcc=dict(debug=["install"],
+                          release=["install"],
+                          paranoid=["install"]),
+            llvm2=dict(debug=["install"],
+                       release=["install"],
+                       paranoid=["install"]),
+            gcc=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()),
+            llvm_gcc=dict(debug=dict(),
+                          release=dict(),
+                          paranoid=dict()),
+            llvm2=dict(debug=dict(),
+                       release=dict(),
+                       paranoid=dict()),
+            gcc=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"]),
+            llvm_gcc=dict(debug=["check"],
+                          release=["check"],
+                          paranoid=["check"]),
+            llvm2=dict(debug=["check"],
+                       release=["check"],
+                       paranoid=["check"]),
+            gcc=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()),
+            llvm_gcc=dict(debug=dict(),
+                          release=dict(),
+                          paranoid=dict()),
+            llvm2=dict(debug=dict(),
+                       release=dict(),
+                       paranoid=dict()),
+            gcc=dict(debug=dict(),
+                     release=dict(),
+                     paranoid=dict()),
+            dragonegg=dict(debug=dict(),
+                           release=dict(),
+                           paranoid=dict()))
+
+        for component in ["llvm", "llvm-gcc", "llvm2", "gcc", "dragonegg"]:
+            comp = component[:]
+
+            srcdir = source + "/" + comp.rstrip("2")
+            builddir = self.build_prefix + "/" + comp + "/" + build_suffix
+            installdir = self.install_prefix
+
+            if (branch is not None):
+                srcdir += "/" + branch
+
+            self.logger.info("Configuring " + component + " in " + builddir)
+            self.configure(component, srcdir, builddir,
+                           configure_flags[comp.replace("-", "_")][build],
+                           configure_env[comp.replace("-", "_")][build])
+
+            self.logger.info("Building " + component + " in " + builddir)
+            self.make(component, srcdir, builddir,
+                      make_flags[comp.replace("-", "_")][build],
+                      make_env[comp.replace("-", "_")][build])
+
+            self.logger.info("Installing " + component + " in " + installdir)
+            self.make(component, srcdir, builddir,
+                      make_install_flags[comp.replace("-", "_")][build],
+                      make_install_env[comp.replace("-", "_")][build])
+
+            self.logger.info("Testing " + component + " in " + builddir)
+            self.make(component, srcdir, builddir,
+                      make_check_flags[comp.replace("-", "_")][build],
+                      make_check_env[comp.replace("-", "_")][build])
+
+
+    def configure(self, component, srcdir, builddir, flags, env):
+        configure_files = dict(
+            llvm=[(srcdir + "/configure", builddir + "/Makefile")],
+            llvm_gcc=[(srcdir + "/configure", builddir + "/Makefile"),
+                      (srcdir + "/gcc/configure", builddir + "/gcc/Makefile")],
+            llvm2=[(srcdir + "/configure", builddir + "/Makefile")],
+            gcc=[(srcdir + "/configure", builddir + "/Makefile"),
+                 (srcdir + "/gcc/configure", builddir + "/gcc/Makefile")],
+            dragonegg=[()])
+
+        doconfig = False
+        for conf, mf in configure_files[component.replace("-", "_")]:
+            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:
+            return
+
+        program = srcdir + "/configure"
+        if not is_executable(program):
+            return
+
+        args = [program]
+        args += ["--verbose"]
+        args += flags
+        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
+        self.execute(args, builddir, env, component)
+
+# Global constants
+build_abbrev = dict(debug="dbg", release="opt", paranoid="par")
+
+# 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))
+branch_abbrev = get_path_abbrevs(set(options.branch))
+
+work_queue = queue.Queue()
+
+for t in range(options.threads):
+    jobs = options.jobs // options.threads
+    builder = Builder(work_queue, jobs, options.cc.strip(), options.cxx.strip(),
+                      build_abbrev, source_abbrev, branch_abbrev,
+                      options.builddir.strip(), options.prefix.strip())
+    builder.daemon = True
+    builder.start()
+
+for build in set(options.build):
+    for source in set(options.src):
+        if options.branch is not None:
+            for branch in set(options.branch):
+                work_queue.put((source, branch, build))
+        else:
+            work_queue.put((source, None, build))
+
+work_queue.join()