OVMS3-idf/tools/ldgen/ldgen.py
Renz Christian Bagaporo f0f861ccd9 ldgen: use user input filename for processed template
Previously ldgen determines the output file name on its own. This commit
makes it so that user can dictate what the output file name will be
for the processed template, if the user needs it for something else.
2019-06-11 18:09:26 +08:00

132 lines
4.2 KiB
Python
Executable file

#!/usr/bin/env python
#
# Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import argparse
import sys
import tempfile
import subprocess
import os
import errno
from fragments import FragmentFile
from sdkconfig import SDKConfig
from generation import GenerationModel, TemplateModel, SectionsInfo
from ldgen_common import LdGenFailure
from pyparsing import ParseException, ParseFatalException
from io import StringIO
def main():
argparser = argparse.ArgumentParser(description="ESP-IDF linker script generator")
argparser.add_argument(
"--input", "-i",
help="Linker template file",
type=argparse.FileType("r"))
argparser.add_argument(
"--fragments", "-f",
type=argparse.FileType("r"),
help="Input fragment files",
nargs="+")
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(
"--env", "-e",
action='append', default=[],
help='Environment to set when evaluating the config file', metavar='NAME=VAL')
argparser.add_argument(
"--objdump",
help="Path to toolchain objdump")
args = argparser.parse_args()
input_file = args.input
fragment_files = [] if not args.fragments else args.fragments
libraries_file = args.libraries_file
config_file = args.config
output_path = args.output
kconfig_file = args.kconfig
objdump = args.objdump
try:
sections_infos = SectionsInfo()
for library in libraries_file:
library = library.strip()
if library:
dump = StringIO(subprocess.check_output([objdump, "-h", library]).decode())
dump.name = library
sections_infos.add_sections_info(dump)
generation_model = GenerationModel()
sdkconfig = SDKConfig(kconfig_file, config_file, args.env)
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_rules(sections_infos)
script_model = TemplateModel(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)
if __name__ == "__main__":
main()