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-rw-r--r--tools/buildman/README47
-rw-r--r--tools/buildman/bsettings.py10
-rw-r--r--tools/buildman/cmdline.py4
-rw-r--r--tools/buildman/control.py16
-rw-r--r--tools/buildman/test.py6
-rw-r--r--tools/buildman/toolchain.py233
6 files changed, 303 insertions, 13 deletions
diff --git a/tools/buildman/README b/tools/buildman/README
index 849e6ca..cf7bf5c 100644
--- a/tools/buildman/README
+++ b/tools/buildman/README
@@ -173,9 +173,9 @@ to build x86 commits.
3. Make sure you have the require Python pre-requisites
-Buildman uses multiprocessing, Queue, shutil, StringIO and ConfigParser.
-These should normally be available, but if you get an error like this then
-you will need to obtain those modules:
+Buildman uses multiprocessing, Queue, shutil, StringIO, ConfigParser and
+urllib2. These should normally be available, but if you get an error like
+this then you will need to obtain those modules:
ImportError: No module named multiprocessing
@@ -310,6 +310,47 @@ You can see that everything is covered, even some strange ones that won't
be used (c88 and c99). This is a feature.
+5. Install new toolchains if needed
+
+You can download toolchains and update the [toolchain] section of the
+settings file to find them.
+
+To make this easier, buildman can automatically download and install
+toolchains from kernel.org. First list the available architectures:
+
+$ ./tools/buildman/buildman sandbox --fetch-arch list
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.2/
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.1/
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.2.4/
+Available architectures: alpha am33_2.0 arm avr32 bfin cris crisv32 frv h8300
+hppa hppa64 i386 ia64 m32r m68k mips mips64 or32 powerpc powerpc64 s390x sh4
+sparc sparc64 tilegx x86_64 xtensa
+
+Then pick one and download it:
+
+$ ./tools/buildman/buildman sandbox --fetch-arch or32
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.2/
+Checking: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.1/
+Downloading: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.1//x86_64-gcc-4.5.1-nolibc_or32-linux.tar.xz
+Unpacking to: /home/sjg/.buildman-toolchains
+Testing
+ - looking in '/home/sjg/.buildman-toolchains/gcc-4.5.1-nolibc/or32-linux/.'
+ - looking in '/home/sjg/.buildman-toolchains/gcc-4.5.1-nolibc/or32-linux/bin'
+ - found '/home/sjg/.buildman-toolchains/gcc-4.5.1-nolibc/or32-linux/bin/or32-linux-gcc'
+Tool chain test: OK
+
+Buildman should now be set up to use your new toolchain.
+
+At the time of writing, U-Boot has these architectures:
+
+ arc, arm, avr32, blackfin, m68k, microblaze, mips, nds32, nios2, openrisc
+ powerpc, sandbox, sh, sparc, x86
+
+Of these, only arc, microblaze and nds32 are not available at kernel.org..
+
+
How to run it
=============
diff --git a/tools/buildman/bsettings.py b/tools/buildman/bsettings.py
index 9eb9b2b..b361469 100644
--- a/tools/buildman/bsettings.py
+++ b/tools/buildman/bsettings.py
@@ -43,3 +43,13 @@ def GetItems(section):
return []
except:
raise
+
+def SetItem(section, tag, value):
+ """Set an item and write it back to the settings file"""
+ global settings
+ global config_fname
+
+ settings.set(section, tag, value)
+ if config_fname is not None:
+ with open(config_fname, 'w') as fd:
+ settings.write(fd)
diff --git a/tools/buildman/cmdline.py b/tools/buildman/cmdline.py
index 6ad376d..e884e19 100644
--- a/tools/buildman/cmdline.py
+++ b/tools/buildman/cmdline.py
@@ -36,6 +36,10 @@ def ParseArgs():
parser.add_option('-F', '--force-build-failures', dest='force_build_failures',
action='store_true', default=False,
help='Force build of previously-failed build')
+ parser.add_option('--fetch-arch', type='string',
+ help="Fetch a toolchain for architecture FETCH_ARCH ('list' to list)."
+ ' You can also fetch several toolchains separate by comma, or'
+ " 'all' to download all")
parser.add_option('-g', '--git', type='string',
help='Git repo containing branch to build', default='.')
parser.add_option('-G', '--config-file', type='string',
diff --git a/tools/buildman/control.py b/tools/buildman/control.py
index cd0333c..a7c5822 100644
--- a/tools/buildman/control.py
+++ b/tools/buildman/control.py
@@ -118,6 +118,22 @@ def DoBuildman(options, args, toolchains=None, make_func=None, boards=None,
print
return 0
+ if options.fetch_arch:
+ if options.fetch_arch == 'list':
+ sorted_list = toolchains.ListArchs()
+ print 'Available architectures: %s\n' % ' '.join(sorted_list)
+ return 0
+ else:
+ fetch_arch = options.fetch_arch
+ if fetch_arch == 'all':
+ fetch_arch = ','.join(toolchains.ListArchs())
+ print 'Downloading toolchains: %s\n' % fetch_arch
+ for arch in fetch_arch.split(','):
+ ret = toolchains.FetchAndInstall(arch)
+ if ret:
+ return ret
+ return 0
+
# Work out how many commits to build. We want to build everything on the
# branch. We also build the upstream commit as a control so we can see
# problems introduced by the first commit on the branch.
diff --git a/tools/buildman/test.py b/tools/buildman/test.py
index 25be43f..c0ad5d0 100644
--- a/tools/buildman/test.py
+++ b/tools/buildman/test.py
@@ -409,5 +409,11 @@ class TestBuild(unittest.TestCase):
self.toolchains.Add('i386-linux-gcc', test=False)
self.assertTrue(self.toolchains.Select('x86') != None)
+ def testToolchainDownload(self):
+ """Test that we can download toolchains"""
+ self.assertEqual('https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/x86_64-gcc-4.6.3-nolibc_arm-unknown-linux-gnueabi.tar.xz',
+ self.toolchains.LocateArchUrl('arm'))
+
+
if __name__ == "__main__":
unittest.main()
diff --git a/tools/buildman/toolchain.py b/tools/buildman/toolchain.py
index ad4df8c..d4c5d4a 100644
--- a/tools/buildman/toolchain.py
+++ b/tools/buildman/toolchain.py
@@ -5,11 +5,42 @@
import re
import glob
+from HTMLParser import HTMLParser
import os
+import sys
+import tempfile
+import urllib2
import bsettings
import command
+# Simple class to collect links from a page
+class MyHTMLParser(HTMLParser):
+ def __init__(self, arch):
+ """Create a new parser
+
+ After the parser runs, self.links will be set to a list of the links
+ to .xz archives found in the page, and self.arch_link will be set to
+ the one for the given architecture (or None if not found).
+
+ Args:
+ arch: Architecture to search for
+ """
+ HTMLParser.__init__(self)
+ self.arch_link = None
+ self.links = []
+ self._match = '_%s-' % arch
+
+ def handle_starttag(self, tag, attrs):
+ if tag == 'a':
+ for tag, value in attrs:
+ if tag == 'href':
+ if value and value.endswith('.xz'):
+ self.links.append(value)
+ if self._match in value:
+ self.arch_link = value
+
+
class Toolchain:
"""A single toolchain
@@ -20,7 +51,6 @@ class Toolchain:
arch: Architecture of toolchain as determined from the first
component of the filename. E.g. arm-linux-gcc becomes arm
"""
-
def __init__(self, fname, test, verbose=False):
"""Create a new toolchain object.
@@ -116,18 +146,29 @@ class Toolchains:
self.paths = []
self._make_flags = dict(bsettings.GetItems('make-flags'))
- def GetSettings(self):
+ def GetPathList(self):
+ """Get a list of available toolchain paths
+
+ Returns:
+ List of strings, each a path to a toolchain mentioned in the
+ [toolchain] section of the settings file.
+ """
toolchains = bsettings.GetItems('toolchain')
if not toolchains:
print ("Warning: No tool chains - please add a [toolchain] section"
" to your buildman config file %s. See README for details" %
bsettings.config_fname)
+ paths = []
for name, value in toolchains:
if '*' in value:
- self.paths += glob.glob(value)
+ paths += glob.glob(value)
else:
- self.paths.append(value)
+ paths.append(value)
+ return paths
+
+ def GetSettings(self):
+ self.paths += self.GetPathList()
def Add(self, fname, test=True, verbose=False):
"""Add a toolchain to our list
@@ -147,6 +188,24 @@ class Toolchains:
if add_it:
self.toolchains[toolchain.arch] = toolchain
+ def ScanPath(self, path, verbose):
+ """Scan a path for a valid toolchain
+
+ Args:
+ path: Path to scan
+ verbose: True to print out progress information
+ Returns:
+ Filename of C compiler if found, else None
+ """
+ for subdir in ['.', 'bin', 'usr/bin']:
+ dirname = os.path.join(path, subdir)
+ if verbose: print " - looking in '%s'" % dirname
+ for fname in glob.glob(dirname + '/*gcc'):
+ if verbose: print " - found '%s'" % fname
+ return fname
+ return None
+
+
def Scan(self, verbose):
"""Scan for available toolchains and select the best for each arch.
@@ -160,12 +219,9 @@ class Toolchains:
if verbose: print 'Scanning for tool chains'
for path in self.paths:
if verbose: print " - scanning path '%s'" % path
- for subdir in ['.', 'bin', 'usr/bin']:
- dirname = os.path.join(path, subdir)
- if verbose: print " - looking in '%s'" % dirname
- for fname in glob.glob(dirname + '/*gcc'):
- if verbose: print " - found '%s'" % fname
- self.Add(fname, True, verbose)
+ fname = self.ScanPath(path, verbose)
+ if fname:
+ self.Add(fname, True, verbose)
def List(self):
"""List out the selected toolchains for each architecture"""
@@ -264,3 +320,160 @@ class Toolchains:
else:
i += 1
return args
+
+ def LocateArchUrl(self, fetch_arch):
+ """Find a toolchain available online
+
+ Look in standard places for available toolchains. At present the
+ only standard place is at kernel.org.
+
+ Args:
+ arch: Architecture to look for, or 'list' for all
+ Returns:
+ If fetch_arch is 'list', a tuple:
+ Machine architecture (e.g. x86_64)
+ List of toolchains
+ else
+ URL containing this toolchain, if avaialble, else None
+ """
+ arch = command.OutputOneLine('uname', '-m')
+ base = 'https://www.kernel.org/pub/tools/crosstool/files/bin'
+ versions = ['4.6.3', '4.6.2', '4.5.1', '4.2.4']
+ links = []
+ for version in versions:
+ url = '%s/%s/%s/' % (base, arch, version)
+ print 'Checking: %s' % url
+ response = urllib2.urlopen(url)
+ html = response.read()
+ parser = MyHTMLParser(fetch_arch)
+ parser.feed(html)
+ if fetch_arch == 'list':
+ links += parser.links
+ elif parser.arch_link:
+ return url + parser.arch_link
+ if fetch_arch == 'list':
+ return arch, links
+ return None
+
+ def Download(self, url):
+ """Download a file to a temporary directory
+
+ Args:
+ url: URL to download
+ Returns:
+ Tuple:
+ Temporary directory name
+ Full path to the downloaded archive file in that directory,
+ or None if there was an error while downloading
+ """
+ print "Downloading: %s" % url
+ leaf = url.split('/')[-1]
+ tmpdir = tempfile.mkdtemp('.buildman')
+ response = urllib2.urlopen(url)
+ fname = os.path.join(tmpdir, leaf)
+ fd = open(fname, 'wb')
+ meta = response.info()
+ size = int(meta.getheaders("Content-Length")[0])
+ done = 0
+ block_size = 1 << 16
+ status = ''
+
+ # Read the file in chunks and show progress as we go
+ while True:
+ buffer = response.read(block_size)
+ if not buffer:
+ print chr(8) * (len(status) + 1), '\r',
+ break
+
+ done += len(buffer)
+ fd.write(buffer)
+ status = r"%10d MiB [%3d%%]" % (done / 1024 / 1024,
+ done * 100 / size)
+ status = status + chr(8) * (len(status) + 1)
+ print status,
+ sys.stdout.flush()
+ fd.close()
+ if done != size:
+ print 'Error, failed to download'
+ os.remove(fname)
+ fname = None
+ return tmpdir, fname
+
+ def Unpack(self, fname, dest):
+ """Unpack a tar file
+
+ Args:
+ fname: Filename to unpack
+ dest: Destination directory
+ Returns:
+ Directory name of the first entry in the archive, without the
+ trailing /
+ """
+ stdout = command.Output('tar', 'xvfJ', fname, '-C', dest)
+ return stdout.splitlines()[0][:-1]
+
+ def TestSettingsHasPath(self, path):
+ """Check if builmand will find this toolchain
+
+ Returns:
+ True if the path is in settings, False if not
+ """
+ paths = self.GetPathList()
+ return path in paths
+
+ def ListArchs(self):
+ """List architectures with available toolchains to download"""
+ host_arch, archives = self.LocateArchUrl('list')
+ re_arch = re.compile('[-a-z0-9.]*_([^-]*)-.*')
+ arch_set = set()
+ for archive in archives:
+ # Remove the host architecture from the start
+ arch = re_arch.match(archive[len(host_arch):])
+ if arch:
+ arch_set.add(arch.group(1))
+ return sorted(arch_set)
+
+ def FetchAndInstall(self, arch):
+ """Fetch and install a new toolchain
+
+ arch:
+ Architecture to fetch, or 'list' to list
+ """
+ # Fist get the URL for this architecture
+ url = self.LocateArchUrl(arch)
+ if not url:
+ print ("Cannot find toolchain for arch '%s' - use 'list' to list" %
+ arch)
+ return 2
+ home = os.environ['HOME']
+ dest = os.path.join(home, '.buildman-toolchains')
+ if not os.path.exists(dest):
+ os.mkdir(dest)
+
+ # Download the tar file for this toolchain and unpack it
+ tmpdir, tarfile = self.Download(url)
+ if not tarfile:
+ return 1
+ print 'Unpacking to: %s' % dest,
+ sys.stdout.flush()
+ path = self.Unpack(tarfile, dest)
+ os.remove(tarfile)
+ os.rmdir(tmpdir)
+ print
+
+ # Check that the toolchain works
+ print 'Testing'
+ dirpath = os.path.join(dest, path)
+ compiler_fname = self.ScanPath(dirpath, True)
+ if not compiler_fname:
+ print 'Could not locate C compiler - fetch failed.'
+ return 1
+ toolchain = Toolchain(compiler_fname, True, True)
+
+ # Make sure that it will be found by buildman
+ if not self.TestSettingsHasPath(dirpath):
+ print ("Adding 'download' to config file '%s'" %
+ bsettings.config_fname)
+ tools_dir = os.path.dirname(dirpath)
+ bsettings.SetItem('toolchain', 'download', '%s/*' % tools_dir)
+ return 0
generated by cgit v1.1 at 2024-11-25 18:43:35 +0000