mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 18:25:35 -04:00
Alexandros Mandravillis
93ece71c8c
A BIOS module's glue.c includes overlay_dispatch_preamble.c.inc and psx_bios_module_glue.c.inc by name. The tcc path compiles against a BOM-stripped copy of the include directory, and that copy held only *.h, so every tcc module build stopped at "include file 'overlay_dispatch_preamble.c.inc' not found" and the runtime fell back to the bundled BIOS. Copy .inc files into the tcc include copy as well. Game overlay shards were not affected: compile_overlays inlines the preamble text instead of including it.
100 lines
3.9 KiB
Python
100 lines
3.9 KiB
Python
#!/usr/bin/env python3
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"""The include directory handed to tcc holds every file a BIOS module includes.
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tcc 0.9.27 does not skip a UTF-8 BOM, so compile_overlays._bom_free_incdir()
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gives it a BOM-stripped copy of each include directory instead of the real one.
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tools/bios_module_build.py writes a glue.c that includes two .c.inc fragments
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from runtime/include by name. If the copy leaves them out, the tcc build of
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every BIOS module stops at "include file ... not found" and the runtime falls
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back to the bundled BIOS.
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Needs no compiler and no built target.
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python3 recompiler/tests/test_tcc_module_include_dir.py
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"""
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import ast
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import os
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import re
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import shutil
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import sys
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import tempfile
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ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
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TOOLS = os.path.join(ROOT, 'tools')
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RUNTIME_INCLUDE = os.path.join(ROOT, 'runtime', 'include')
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BOM = b'\xef\xbb\xbf'
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def load_bom_free_incdir():
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"""compile_overlays._bom_free_incdir and its memo, without importing the
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whole tool: the test then runs on any Python 3 and needs none of the
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tool's other imports."""
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path = os.path.join(TOOLS, 'compile_overlays.py')
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with open(path, encoding='utf-8') as f:
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tree = ast.parse(f.read(), filename=path)
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keep = []
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for node in tree.body:
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if isinstance(node, ast.FunctionDef) and node.name == '_bom_free_incdir':
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keep.append(node)
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elif isinstance(node, ast.Assign) and any(
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isinstance(t, ast.Name) and t.id == '_TCC_BOMFREE_INC' for t in node.targets):
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keep.append(node)
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assert len(keep) == 2, 'compile_overlays.py no longer defines _bom_free_incdir and its memo'
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scope = {'os': os, 'tempfile': tempfile}
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exec(compile(ast.Module(body=keep, type_ignores=[]), path, 'exec'), scope)
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return scope['_bom_free_incdir']
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def module_glue_includes():
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"""Quoted include names bios_module_build.py writes into a module."""
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with open(os.path.join(TOOLS, 'bios_module_build.py'), encoding='utf-8') as f:
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text = f.read()
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return sorted(set(re.findall(r'#include \\?"([A-Za-z0-9_./]+)\\?"', text)))
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def main():
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bom_free_incdir = load_bom_free_incdir()
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made = []
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try:
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# A synthetic directory: headers and fragments are copied without
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# their BOM, anything else is left out.
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src = tempfile.mkdtemp(prefix='tcc_inc_src_')
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made.append(src)
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files = {
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'a.h': BOM + b'#define A 1\n',
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'b.c.inc': BOM + b'static int b;\n',
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'c.inc': b'static int c;\n',
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'notes.txt': b'not a C input\n',
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}
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for name, data in files.items():
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with open(os.path.join(src, name), 'wb') as f:
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f.write(data)
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out = bom_free_incdir(src)
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made.append(out)
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assert sorted(os.listdir(out)) == ['a.h', 'b.c.inc', 'c.inc'], sorted(os.listdir(out))
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for name in ('a.h', 'b.c.inc', 'c.inc'):
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with open(os.path.join(out, name), 'rb') as f:
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data = f.read()
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assert not data.startswith(BOM), f'{name} kept its BOM'
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want = files[name][3:] if files[name].startswith(BOM) else files[name]
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assert data == want, f'{name} content changed'
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# The real directory: everything a module's glue.c includes resolves.
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wanted = module_glue_includes()
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assert 'overlay_dispatch_preamble.c.inc' in wanted, wanted
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assert 'psx_bios_module_glue.c.inc' in wanted, wanted
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real = bom_free_incdir(RUNTIME_INCLUDE)
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made.append(real)
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missing = [n for n in wanted if not os.path.isfile(os.path.join(real, n))]
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assert not missing, f'tcc include copy lacks: {missing}'
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print(f'OK: tcc include copy holds {len(wanted)} module includes: {", ".join(wanted)}')
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return 0
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finally:
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for d in made:
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shutil.rmtree(d, ignore_errors=True)
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if __name__ == '__main__':
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sys.exit(main())
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