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#!/usr/bin/env python3
import sys
from pathlib import Path
import shlex
import subprocess
import tempfile
import uuid
import asm_processor
# Preprocessed files are temporary. For debugging purposes, you can set this
# variable or pass --keep-preprocessed path/to/dir/ to keep a copy.
keep_output_dir = None
# keep_output_dir = Path("./asm_processor_preprocessed")
progname = sys.argv[0]
all_args = sys.argv[1:]
i = 0
asmproc_flags = []
while i < len(all_args):
arg = all_args[i]
if arg == "--":
i += 1
break
if not arg.startswith("-"):
break
i += 1
asmproc_flags.append(arg)
if arg in ("--input-enc", "--output-enc", "--asm-prelude", "--convert-statics", "--keep-preprocessed", "--no-dep-file") and i < len(all_args):
asmproc_flags.append(all_args[i])
i += 1
sep0 = i
try:
sep1 = all_args.index("--", sep0)
sep2 = all_args.index("--", sep1 + 1)
except ValueError:
print(f"Usage: {progname} [options] <compiler...> -- <assembler...> -- <compiler flags...>")
sys.exit(1)
compiler = all_args[sep0:sep1]
assembler_args = all_args[sep1 + 1 : sep2]
compile_args = all_args[sep2 + 1 :]
assembler_sh = " ".join(shlex.quote(x) for x in assembler_args)
def fail_parse(msg):
print(f"Failed to parse compiler flags: {msg}")
sys.exit(1)
try:
out_ind = compile_args.index("-o")
except ValueError:
fail_parse("missing -o argument")
try:
out_file = Path(compile_args[out_ind + 1])
except IndexError:
fail_parse("missing argument after -o")
del compile_args[out_ind + 1]
del compile_args[out_ind]
try:
in_file = Path(compile_args[-1])
except IndexError:
fail_parse("missing input file argument")
del compile_args[-1]
in_dir = in_file.resolve().parent
opt_flags = [
x for x in compile_args if x in {"-g3", "-g", "-O0", "-O1", "-O2", "-framepointer", "-KPIC"}
]
if "-mips2" not in compile_args:
opt_flags.append("-mips1")
asmproc_flags += opt_flags + [str(in_file)]
# Drop .mdebug and .gptab sections from resulting binaries. This makes
# resulting .o files much smaller and speeds up builds, but loses line
# number debug data.
# asmproc_flags += ["--drop-mdebug-gptab"]
# Convert encoding before compiling.
# asmproc_flags += ["--input-enc", "utf-8", "--output-enc", "euc-jp"]
with tempfile.TemporaryDirectory(prefix="asm_processor") as tmpdirname:
tmpdir_path = Path(tmpdirname)
preprocessed_filename = "preprocessed_" + uuid.uuid4().hex + in_file.suffix
preprocessed_path = tmpdir_path / preprocessed_filename
with preprocessed_path.open("wb") as outfile:
functions, deps, keep_output_dir2 = asm_processor.run(asmproc_flags, outfile=outfile)
keep_output_dir = keep_output_dir or keep_output_dir2
if keep_output_dir:
import shutil
keep_output_dir.mkdir(parents=True, exist_ok=True)
shutil.copy(
preprocessed_path,
keep_output_dir / (in_file.stem + "_" + preprocessed_filename),
)
compile_cmdline = (
compiler
+ compile_args
+ ["-I", str(in_dir), "-o", str(out_file), str(preprocessed_path)]
)
try:
subprocess.check_call(compile_cmdline)
except subprocess.CalledProcessError as e:
print("Failed to compile file " + str(in_file) + ". Command line:")
print()
print(" ".join(shlex.quote(x) for x in compile_cmdline))
print()
sys.exit(55)
asm_processor.run(
asmproc_flags
+ [
"--post-process",
str(out_file),
"--assembler",
assembler_sh,
],
functions=functions,
)
deps_file = out_file.with_suffix(".asmproc.d")
if deps and "--no-dep-file" not in asmproc_flags:
with deps_file.open("w") as f:
f.write(str(out_file) + ": " + " \\\n ".join(deps) + "\n")
for dep in deps:
f.write("\n" + dep + ":\n")
else:
try:
deps_file.unlink()
except OSError:
pass
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