tools/buildman/toolchain.py

3 # SPDX-License-Identifier:	GPL-2.0+
36         self._match = '_%s-' % arch
48 class Toolchain:  class
49     """A single toolchain
54         cross: Cross compile string, e.g. 'arm-linux-'
55         arch: Architecture of toolchain as determined from the first
56                 component of the filename. E.g. arm-linux-gcc becomes arm
57         priority: Toolchain priority (0=highest, 20=lowest)
61         """Create a new toolchain object.
65             test: True to run the toolchain to test it
67             priority: Priority to use for this toolchain, or PRIORITY_CALC to
73         # Find the CROSS_COMPILE prefix to use for U-Boot. For example,
74         # 'arm-linux-gnueabihf-gcc' turns into 'arm-linux-gnueabihf-'.
76         pos = basename.rfind('-')
77         self.cross = basename[:pos + 1] if pos != -1 else ''
80         pos = self.cross.find('-')
84             self.arch = self.cross[:pos] if pos != -1 else 'sandbox'
88         # As a basic sanity check, run the C compiler with --version
89         cmd = [fname, '--version']
112         """Return the priority of the toolchain.
115         filename prefix.
118             fname: Filename of toolchain
120             Priority of toolchain, PRIORITY_CALC=highest, 20=lowest.
122         priority_list = ['-elf', '-unknown-linux-gnu', '-linux',
123             '-none-linux-gnueabi', '-none-linux-gnueabihf', '-uclinux',
124             '-none-eabi', '-gentoo-linux-gnu', '-linux-gnueabi',
125             '-linux-gnueabihf', '-le-linux', '-uclinux']
132         """Get toolchain wrapper from the setting file.
135 	for name, value in bsettings.GetItems('toolchain-wrapper'):
144         """Returns an environment for using the toolchain.
170     """Manage a list of toolchains for building U-Boot
172     We select one toolchain for each architecture type
175         toolchains: Dict of Toolchain objects, keyed by architecture name
177             be a full path and toolchain prefix, for example
178             {'x86', 'opt/i386-linux/bin/i386-linux-'}, or the name of
180             {'arm', 'arm-linux-gnueabihf-'}. Wildcards are not supported.
188         self._make_flags = dict(bsettings.GetItems('make-flags'))
191         """Get a list of available toolchain paths
197             List of strings, each a path to a toolchain mentioned in the
198             [toolchain] section of the settings file.
200         toolchains = bsettings.GetItems('toolchain')
203                    "--fetch-arch all' to download all available toolchains, or "
204                    "add a [toolchain] section to your buildman config file "
217         """Get toolchain settings from the settings file.
222         self.prefixes = bsettings.GetItems('toolchain-prefix')
227         """Add a toolchain to our list
229         We select the given toolchain as our preferred one for its
233             fname: Filename of toolchain's gcc driver
234             test: True to run the toolchain to test it
235             priority: Priority to use for this toolchain
236             arch: Toolchain architecture, or None if not known
238         toolchain = Toolchain(fname, test, verbose, priority, arch)
239         add_it = toolchain.ok
240         if toolchain.arch in self.toolchains:
241             add_it = (toolchain.priority <
242                         self.toolchains[toolchain.arch].priority)
244             self.toolchains[toolchain.arch] = toolchain
246             print ("Toolchain '%s' at priority %d will be ignored because "
247                    "another toolchain for arch '%s' has priority %d" %
248                    (toolchain.gcc, toolchain.priority, toolchain.arch,
249                     self.toolchains[toolchain.arch].priority))
252         """Scan a path for a valid toolchain
263             if verbose: print "      - looking in '%s'" % dirname
265                 if verbose: print "         - found '%s'" % fname
290         highest priority toolchain for each arch.
297             if verbose: print "   - scanning prefix '%s'" % value
309                 raise ValueError, ("No tool chain found for prefix '%s'" %
312             if verbose: print "   - scanning path '%s'" % path
324                 print '%-10s: %s' % (key, value.gcc)
329         """Returns the toolchain for a given architecture
335             toolchain object, or None if none found
337         for tag, value in bsettings.GetItems('toolchain-alias'):
369         re_var = re.compile('(\$\{[-_a-z0-9A-Z]{1,}\})')
375             lookup = m.group(0)[2:-1]
383         The flags are in a section called 'make-flags'. Flags are named
390         [make-flags]
391         at91-boards=ENABLE_AT91_TEST=1
392         snapper9260=${at91-boards} BUILD_TAG=442
393         snapper9g45=${at91-boards} BUILD_TAG=443
418         """Find a toolchain available online
430                 URL containing this toolchain, if avaialble, else None
432         arch = command.OutputOneLine('uname', '-m')
463         leaf = url.split('/')[-1]
469         size = int(meta.getheaders('Content-Length')[0])
505         stdout = command.Output('tar', 'xvfJ', fname, '-C', dest)
506         return stdout.splitlines()[0][:-1]
509         """Check if buildman will find this toolchain
520         re_arch = re.compile('[-a-z0-9.]*_([^-]*)-.*')
530         """Fetch and install a new toolchain
537         print col.Color(col.BLUE, "Downloading toolchain for arch '%s'" % arch)
540             print ("Cannot find toolchain for arch '%s' - use 'list' to list" %
544         dest = os.path.join(home, '.buildman-toolchains')
548         # Download the tar file for this toolchain and unpack it
559         # Check that the toolchain works
564             print 'Could not locate C compiler - fetch failed.'
569         toolchain = Toolchain(compiler_fname_list[0], True, True)
575             bsettings.SetItem('toolchain', 'download', '%s/*/*' % dest)