ec7044437e
Disables allowing the python argparse library from automatically shortening command line arguments, this prevents issues whereby a new command is added and code that wrongly uses the shortened command of an existing argument which is the same as the new command being added will silently change script behaviour. Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
108 lines
2.5 KiB
Python
Executable file
108 lines
2.5 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright (c) 2022 Meta
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#
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# SPDX-License-Identifier: Apache-2.0
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import argparse
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import os
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import re
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def front_matter(sys_nerr):
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return f'''
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/*
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* This file generated by {__file__}
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*/
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include <zephyr/sys/util.h>
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#define sys_nerr {sys_nerr}'''
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def gen_strerror_table(input, output):
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with open(input, 'r') as inf:
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highest_errno = 0
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symbols = []
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msgs = {}
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for line in inf.readlines():
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# Select items of the form below (note: ERRNO is numeric)
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# #define SYMBOL ERRNO /**< MSG */
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pat = r'^#define[\s]+(E[A-Z_]*)[\s]+([1-9][0-9]*)[\s]+/\*\*<[\s]+(.*)[\s]+\*/[\s]*$'
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match = re.match(pat, line)
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if not match:
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continue
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symbol = match[1]
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errno = int(match[2])
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msg = match[3]
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symbols.append(symbol)
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msgs[symbol] = msg
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highest_errno = max(int(errno), highest_errno)
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try:
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os.makedirs(os.path.dirname(output))
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except BaseException:
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# directory already present
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pass
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with open(output, 'w') as outf:
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print(front_matter(highest_errno + 1), file=outf)
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# Generate string table
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print(
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f'static const char *const sys_errlist[sys_nerr] = {{', file=outf)
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print('[0] = "Success",', file=outf)
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for symbol in symbols:
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print(f'[{symbol}] = "{msgs[symbol]}",', file=outf)
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print('};', file=outf)
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# Generate string lengths (includes trailing '\0')
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print(
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f'static const uint8_t sys_errlen[sys_nerr] = {{', file=outf)
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print('[0] = 8,', file=outf)
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for symbol in symbols:
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print(f'[{symbol}] = {len(msgs[symbol]) + 1},', file=outf)
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print('};', file=outf)
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def parse_args():
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parser = argparse.ArgumentParser(allow_abbrev=False)
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parser.add_argument(
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'-i',
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'--input',
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dest='input',
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required=True,
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help='input file (e.g. lib/libc/minimal/include/errno.h)')
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parser.add_argument(
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'-o',
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'--output',
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dest='output',
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required=True,
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help='output file (e.g. build/zephyr/misc/generated/libc/minimal/strerror_table.h)')
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args = parser.parse_args()
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return args
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def main():
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args = parse_args()
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gen_strerror_table(args.input, args.output)
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if __name__ == '__main__':
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main()
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