def main():
argparser = argparse.ArgumentParser(description='ESP-IDF linker script generator')
argparser.add_argument(
'--input', '-i',
help='Linker template file',
type=argparse.FileType('r'))
fragments_group = argparser.add_mutually_exclusive_group()
fragments_group.add_argument(
'--fragments', '-f',
type=argparse.FileType('r'),
help='Input fragment files',
nargs='+'
)
fragments_group.add_argument(
'--fragments-list',
help='Input fragment files as a semicolon-separated list',
type=str
)
argparser.add_argument(
'--libraries-file',
type=argparse.FileType('r'),
help='File that contains the list of libraries in the build')
argparser.add_argument(
'--output', '-o',
help='Output linker script',
type=str)
argparser.add_argument(
'--config', '-c',
help='Project configuration')
argparser.add_argument(
'--kconfig', '-k',
help='IDF Kconfig file')
argparser.add_argument(
'--check-mapping',
help='Perform a check if a mapping (archive, obj, symbol) exists',
action='store_true'
)
argparser.add_argument(
'--check-mapping-exceptions',
help='Mappings exempted from check',
type=argparse.FileType('r')
)
argparser.add_argument(
'--env', '-e',
action='append', default=[],
help='Environment to set when evaluating the config file', metavar='NAME=VAL')
argparser.add_argument('--env-file', type=argparse.FileType('r'),
help='Optional file to load environment variables from. Contents '
'should be a JSON object where each key/value pair is a variable.')
argparser.add_argument(
'--objdump',
help='Path to toolchain objdump')
args = argparser.parse_args()
input_file = args.input
libraries_file = args.libraries_file
config_file = args.config
output_path = args.output
kconfig_file = args.kconfig
objdump = args.objdump
fragment_files = []
if args.fragments_list:
fragment_files = args.fragments_list.split(';')
elif args.fragments:
fragment_files = args.fragments
check_mapping = args.check_mapping
if args.check_mapping_exceptions:
check_mapping_exceptions = [line.strip() for line in args.check_mapping_exceptions]
else:
check_mapping_exceptions = None
try:
sections_infos = EntityDB()
for library in libraries_file:
library = library.strip()
if library:
new_env = os.environ.copy()
new_env['LC_ALL'] = 'C'
dump = StringIO(subprocess.check_output([objdump, '-h', library], env=new_env).decode())
dump.name = library
sections_infos.add_sections_info(dump)
generation_model = Generation(check_mapping, check_mapping_exceptions)
_update_environment(args) # assign args.env and args.env_file to os.environ
sdkconfig = SDKConfig(kconfig_file, config_file)
for fragment_file in fragment_files:
try:
fragment_file = FragmentFile(fragment_file, sdkconfig)
except (ParseException, ParseFatalException) as e:
# ParseException is raised on incorrect grammar
# ParseFatalException is raised on correct grammar, but inconsistent contents (ex. duplicate
# keys, key unsupported by fragment, unexpected number of values, etc.)
raise LdGenFailure('failed to parse %s\n%s' % (fragment_file.name, str(e)))
generation_model.add_fragments_from_file(fragment_file)
mapping_rules = generation_model.generate(sections_infos)
script_model = LinkerScript(input_file)
script_model.fill(mapping_rules)
with tempfile.TemporaryFile('w+') as output:
script_model.write(output)
output.seek(0)
if not os.path.exists(os.path.dirname(output_path)):
try:
os.makedirs(os.path.dirname(output_path))
except OSError as exc:
if exc.errno != errno.EEXIST:
raise
with open(output_path, 'w') as f: # only create output file after generation has suceeded
f.write(output.read())
except LdGenFailure as e:
print('linker script generation failed for %s\nERROR: %s' % (input_file.name, e))
sys.exit(1)
