Assembly modding support & objdiff + decomp.me integration (#15)

* Add initial asm build support

* WIP decomp.me and links

tools/download_tool.py

@@ -22,6 +22,24 @@ from typing import Callable, Dict
 from pathlib import Path
 
 
+def binutils_url(tag):
+    uname = platform.uname()
+    system = uname.system.lower()
+    arch = uname.machine.lower()
+    if system == "darwin":
+        system = "macos"
+        arch = "universal"
+    elif arch == "amd64":
+        arch = "x86_64"
+
+    repo = "https://github.com/encounter/gc-wii-binutils"
+    return f"{repo}/releases/download/{tag}/{system}-{arch}.zip"
+
+
+def compilers_url(tag: str) -> str:
+    return f"https://files.decomp.dev/compilers_{tag}.zip"
+
+
 def dtk_url(tag: str) -> str:
     uname = platform.uname()
     suffix = ""
@@ -48,15 +66,12 @@ def wibo_url(tag: str) -> str:
     return f"{repo}/releases/download/{tag}/wibo"
 
 
-def compilers_url(tag: str) -> str:
-    return f"https://files.decomp.dev/compilers_{tag}.zip"
-
-
 TOOLS: Dict[str, Callable[[str], str]] = {
+    "binutils": binutils_url,
+    "compilers": compilers_url,
     "dtk": dtk_url,
     "sjiswrap": sjiswrap_url,
     "wibo": wibo_url,
-    "compilers": compilers_url,
 }
 
 
@@ -77,7 +92,11 @@ def main() -> None:
             data = io.BytesIO(response.read())
             with zipfile.ZipFile(data) as f:
                 f.extractall(output)
-            output.touch(mode=0o755)
+            # Make all files executable
+            for root, _, files in os.walk(output):
+                for name in files:
+                    os.chmod(os.path.join(root, name), 0o755)
+            output.touch(mode=0o755)  # Update dir modtime
         else:
             with open(output, "wb") as f:
                 shutil.copyfileobj(response, f)