refactor(driver): prepare native runtime resources with Perl

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 0 insertions, 168 deletions

diff --git a/tools/driver/prepare-native-runtime.py b/tools/driver/prepare-native-runtime.py
deleted file mode 100644
index 10dfb7b..0000000
--- a/tools/driver/prepare-native-runtime.py
+++ /dev/null
@@ -1,168 +0,0 @@
-#!/usr/bin/env python3
-"""Freeze the build toolchain's native link inputs into the compiler."""
-
-import argparse
-import json
-from pathlib import Path
-import re
-import shlex
-import subprocess
-import zlib
-
-
-def main():
-    parser = argparse.ArgumentParser(description=__doc__)
-    parser.add_argument("--compiler", required=True)
-    parser.add_argument("--output", required=True)
-    parser.add_argument("--platform", choices=("linux", "windows", "macos"), required=True)
-    parser.add_argument("--flag", action="append", default=[])
-    args = parser.parse_args()
-    output = Path(args.output)
-    output.parent.mkdir(parents=True, exist_ok=True)
-
-    def compiler(*options):
-        return subprocess.run([args.compiler, *args.flag, *options], check=True,
-                              capture_output=True, text=True)
-
-    # An actual object lets the driver validate its inputs without linking a probe.
-    source = output.parent / "native-probe.cc"
-    obj = output.parent / "native-probe.o"
-    binary = output.parent / "native-probe.out"
-    source.write_text("int main() { return 0; }\n")
-    compiler("-c", str(source), "-o", str(obj))
-    static = [] if args.platform == "macos" else (
-        ["-static"] if args.platform == "windows" else
-        ["-static-libstdc++", "-static-libgcc"])
-    trace = compiler("-###", "-fuse-ld=lld", *static, str(obj), "-o", str(binary))
-    commands = [shlex.split(line.strip()) for line in trace.stderr.splitlines()
-                if line.lstrip().startswith('"')]
-    if len(commands) != 1:
-        raise RuntimeError("Expected one native linker command: " + trace.stderr)
-    command = commands[0][1:]
-    directories = [Path(arg[2:]) for arg in command if arg.startswith("-L")]
-    target = compiler("-print-effective-triple").stdout.strip()
-    files = {}
-    scripts = set()
-    arguments = []
-    root = "@CPSC_RUNTIME@"
-
-    def resolve(name, static_only=False):
-        if name.startswith(":"):
-            names = [name[1:]]
-        elif args.platform == "macos":
-            names = ["lib" + name + suffix for suffix in (".tbd", ".dylib", ".a")]
-        elif static_only:
-            names = ["lib" + name + ".a"]
-        else:
-            names = ["lib" + name + suffix for suffix in (".dll.a", ".so", ".a")]
-        for directory in directories:
-            for filename in names:
-                path = directory / filename
-                if path.is_file():
-                    return path
-        for filename in names:
-            found = Path(compiler("-print-file-name=" + filename).stdout.strip())
-            if found.is_file():
-                return found
-        raise RuntimeError("Cannot find native link input " + name)
-
-    sdk = None
-    if args.platform == "macos":
-        if "-syslibroot" not in command:
-            raise RuntimeError("A macOS SDK is required to prepare native linking")
-        sdk = Path(command[command.index("-syslibroot") + 1])
-        directories += [sdk / "usr/lib"]
-        # System dylibs live in the dyld cache on users' machines. Embed their
-        # SDK link interfaces, not runtime dylibs or SDK headers.
-        for path in sorted((sdk / "usr/lib").rglob("*.tbd")):
-            files["sdk/" + path.relative_to(sdk).as_posix()] = path.read_bytes()
-
-    mapped = {}
-
-    def resource(path):
-        path = path.resolve()
-        if path in mapped:
-            return root + "/" + mapped[path]
-        if sdk and path.is_relative_to(sdk.resolve()):
-            name = "sdk/" + path.relative_to(sdk.resolve()).as_posix()
-        else:
-            name = "files/" + str(len(mapped)) + "/" + path.name
-        mapped[path] = name
-        data = path.read_bytes()
-        if b"GNU ld script" in data[:256]:
-            text = re.sub(r"/\*.*?\*/", "", data.decode(), flags=re.S)
-            # GNU libc/libm linker scripts contain absolute paths and nested
-            # GROUP/AS_NEEDED inputs. Relocate every referenced link input.
-            pattern = r"(?:/[^\s()]+|lib[\w.+-]+\.(?:so(?:\.[\d]+)*|a))"
-
-            def relocate(match):
-                token = match.group()
-                dependency = Path(token)
-                if not dependency.is_file():
-                    dependency = resolve(":" + token)
-                return '"' + resource(dependency) + '"'
-
-            data = re.sub(pattern, relocate, text).encode()
-            scripts.add(name)
-        files[name] = data
-        return root + "/" + name
-
-    static_only = args.platform == "windows"
-    i = 0
-    while i < len(command):
-        arg = command[i]
-        i += 1
-        if arg == "-o":
-            i += 1
-        elif arg == str(obj):
-            pass
-        elif arg == "-L":
-            i += 1
-        elif arg.startswith("-L"):
-            pass
-        elif arg in ("-dynamic-linker", "--dynamic-linker"):
-            # The interpreter must remain an operating-system path.
-            arguments += [arg, command[i]]
-            i += 1
-        elif arg == "-syslibroot":
-            arguments += [arg, root + "/sdk"]
-            i += 1
-        elif arg in ("-Bstatic", "-Bdynamic"):
-            static_only = arg == "-Bstatic"
-            arguments.append(arg)
-        elif arg.startswith("-l"):
-            arguments.append(resource(resolve(arg[2:], static_only)))
-        elif Path(arg).is_file():
-            arguments.append(resource(Path(arg)))
-        else:
-            arguments.append(arg)
-
-    blob = bytearray()
-    manifest = {"target": target, "arguments": arguments, "files": []}
-    for name, data in files.items():
-        manifest["files"].append({"path": name, "offset": len(blob),
-                                  "size": len(data), "script": name in scripts})
-        blob.extend(data)
-    compressed = zlib.compress(blob, 9)
-    # Small separate literals avoid MSVC's individual string literal limit.
-    literals = "\n".join('"' + "".join(f"\\x{b:02x}" for b in compressed[i:i+1024]) + '"'
-                         for i in range(0, len(compressed), 1024))
-    content = ("// Generated native link resources; do not edit.\n"
-               f"static constexpr size_t NativeRuntimeSize = {len(blob)};\n"
-               "static const char NativeRuntimeData[] =\n" + literals + ";\n"
-               'static const char NativeRuntimeManifest[] = R"CPSC(\n' +
-               json.dumps(manifest) + '\n)CPSC";\n')
-    if not output.exists() or output.read_text() != content:
-        output.write_text(content)
-    # Track the actual toolchain inputs, not only the generator script.
-    dependencies = [str(path) for path in mapped]
-    if sdk:
-        dependencies += [str(path) for path in (sdk / "usr/lib").rglob("*.tbd")]
-    (output.parent / "native-runtime-inputs.cmake").write_text(
-        "set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS\n" +
-        "\n".join('  [==[' + path + ']==]' for path in dependencies) + ")\n")
-    print(f"Embedded {len(files)} native link inputs ({len(compressed)} compressed bytes)")
-
-
-if __name__ == "__main__":
-    main()