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cd2264f018
* Handle multiline #pragma increment_block_number * fix: align all continuation characters vertically * simplify continuation line character alignment * Update tools/fix_bss.py Co-authored-by: cadmic <cadmic24@gmail.com> --------- Co-authored-by: cadmic <cadmic24@gmail.com>
110 lines
3.8 KiB
Python
Executable file
110 lines
3.8 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-FileCopyrightText: © 2024 ZeldaRET
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# SPDX-License-Identifier: CC0-1.0
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# Usage: preprocess.py [flags] -- [compile command minus input file...] [single input file]
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# Preprocess a C file to:
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# * Re-encode from UTF-8 to EUC-JP (the repo uses UTF-8 for text encoding, but
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# the strings in the ROM are encoded in EUC-JP)
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# * Replace `#pragma increment_block_number` with fake structs for controlling BSS ordering
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import argparse
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from pathlib import Path
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import re
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import tempfile
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import subprocess
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import sys
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import typing
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def fail(message):
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print(message, file=sys.stderr)
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sys.exit(1)
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def process_file(
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version: str,
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filename: str,
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input: typing.TextIO,
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output: typing.TextIO,
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):
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output.write(f'#line 1 "{filename}"\n')
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# whether the current line follows a #pragma increment_block_number,
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# including continuation lines (lines after a \-ending line)
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in_pragma_incblocknum = False
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# the line where the #pragma increment_block_number is
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pragma_incblocknum_first_line_num = None
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# all the lines from the #pragma increment_block_number line to the last
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# continuation line, as a list[str]
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pragma_incblocknum_lines = None
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for i, line in enumerate(input, start=1):
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if not in_pragma_incblocknum and line.startswith(
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"#pragma increment_block_number"
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):
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in_pragma_incblocknum = True
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pragma_incblocknum_first_line_num = i
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pragma_incblocknum_lines = []
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if in_pragma_incblocknum:
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if line.endswith("\\\n"):
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pragma_incblocknum_lines.append(line)
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else:
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in_pragma_incblocknum = False
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pragma_incblocknum_lines.append(line)
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amount = 0
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for s in pragma_incblocknum_lines:
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# Note if we had two versions like "abc-def-version" and "def-version"
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# then this code would find either given "def-version", but
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# thankfully we don't have such nested version names.
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m = re.search(rf"{version}:(\d+)\b", s)
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if m:
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amount = int(m.group(1))
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break
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# Always generate at least one struct,
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# so that fix_bss.py can know where the increment_block_number pragmas are
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if amount == 0:
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amount = 256
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# Write fake structs for BSS ordering
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# pragma_incblocknum_first_line_num is used for symbol uniqueness, and
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# also by fix_bss.py to locate the pragma these symbols originate from.
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for j in range(amount):
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output.write(
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"struct increment_block_number_"
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f"{pragma_incblocknum_first_line_num:05}_{j:03};\n"
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)
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output.write(f'#line {i + 1} "{filename}"\n')
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else:
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output.write(line)
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("-v", "--oot-version", help="Which version should be processed")
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parser.add_argument(
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"args",
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nargs="+",
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)
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args = parser.parse_args()
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filename = Path(args.args[-1])
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with tempfile.TemporaryDirectory(prefix="oot_") as tmpdir:
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tmpfile = Path(tmpdir) / filename.name
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with open(filename, mode="r", encoding="utf-8") as input:
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with open(tmpfile, mode="w", encoding="euc-jp") as output:
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process_file(args.oot_version, filename, input, output)
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compile_command = args.args[:-1] + ["-I", filename.parent, tmpfile]
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process = subprocess.run(compile_command)
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return process.returncode
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if __name__ == "__main__":
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try:
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sys.exit(main())
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except KeyboardInterrupt:
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sys.exit(1)
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