def get_version_string(self) -> str:
"""Returns full version string of the C compiler."""
lines = execution.run_stdout([self.c_compiler, '--version'])
# Example output:
# Ubuntu 20.04 mingw: "x86_64-w64-mingw32-gcc (GCC) 9.3-win32 20200320"
# Ubuntu 16.04 mingw: "x86_64-w64-mingw32-gcc (GCC) 5.3.1 20160211"
return lines[0].strip()
def _parse_clang_version(c_compiler: str) -> Optional[Version]:
args = [c_compiler, '--version']
ver_line = execution.run_stdout(args)[0]
# Example output:
# Ubuntu 20.04: clang version 10.0.0-4ubuntu1
# Ubuntu 18.04: clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
# Ubuntu 16.04: clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
# Built from source: clang version 9.0.1
assert ver_line.startswith('clang version ')
ver_str = ver_line.split(' ')[2]
# Remove distribution suffix (if any) and convert to a tuple
return _str_to_ver(ver_str.split('-')[0])
def get_lib_search_dirs(self) -> Set[str]:
"""Returns a set of paths where the toolchain runtime libraries
can be found.
"""
lines = execution.run_stdout([self.c_compiler, '-print-search-dirs'])
prefix = 'libraries: ='
result = set()
for line in lines:
if not line.startswith(prefix):
continue
line = line[len(prefix):]
for path in line.strip().split(':'):
result.add(os.path.normpath(path))
assert result, ('Failed to parse "{} -print-search-dirs" '
'output'.format(self.c_compiler))
return result
def _parse_clang_version(c_compiler: str) -> Optional[Version]:
args = [c_compiler, '--version']
ver_line = execution.run_stdout(args)[0]
# Example output:
# Ubuntu 20.04: clang version 10.0.0-4ubuntu1
# Ubuntu 18.04: clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
# Ubuntu 16.04: clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
# Debian testing (bullseye): Debian clang version 11.0.1-2
# Built from source: clang version 9.0.1
# Remove distribution suffix (if any) and convert to a tuple
assert ver_line.startswith('clang version ') \
or ver_line.startswith('Debian clang version') \
or ver_line.startswith('Apple clang version')
ver_match = re.search(r'version ([0-9.]+)', ver_line)
assert ver_match is not None
return _str_to_ver(ver_match.group(1))
def _check_tool(cfg: config.Config, bin_name: str, name: str,
min_version: Version) -> bool:
"""Check availability and version of a tool."""
if not _check_availability(bin_name, name):
return False
bin_path = shutil.which(bin_name)
assert bin_path is not None
ver_line = execution.run_stdout([bin_name, '--version'])[0]
assert '{} version'.format(bin_name) in ver_line
ver = _str_to_ver(ver_line.split(' ')[-1])
if ver < min_version:
_print_version_error(name, bin_path, ver, min_version)
return False
if cfg.verbose:
logging.info('Found %s version %s', name, ver)
return True
def _parse_gcc_version(c_compiler: str) -> Optional[Version]:
args = [c_compiler, '--version']
ver_line = execution.run_stdout(args)[0]
# Example output:
# Ubuntu 20.04: "gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0"
# Ubuntu 16.04: "gcc (Ubuntu 5.5.0-12ubuntu1~16.04) 5.5.0 20171010"
# Ubuntu 20.04 mingw: "x86_64-w64-mingw32-gcc (GCC) 9.3-win32 20200320"
# Ubuntu 16.04 mingw: "x86_64-w64-mingw32-gcc (GCC) 5.3.1 20160211"
# RHEL 7.6: "gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36)"
ver_rex = re.compile(r'(\d+\.\d+(?:\.\d+)?)(?:-.*)')
for part in ver_line.split(' '):
match = ver_rex.match(part)
if match is not None:
ver_str = match.group(1)
break
else:
logging.error('Failed to parse GCC version "%s"', ver_rex)
return None
return _str_to_ver(ver_str)