Started a Cobor Virtual Machine implementation for running the code.

cobor_vm_extension/godot-cpp/tools/linux.py

@@ -0,0 +1,46 @@
+import common_compiler_flags
+from SCons.Tool import clang, clangxx
+from SCons.Variables import BoolVariable
+
+
+def options(opts):
+    opts.Add(BoolVariable("use_llvm", "Use the LLVM compiler - only effective when targeting Linux", False))
+
+
+def exists(env):
+    return True
+
+
+def generate(env):
+    if env["use_llvm"]:
+        clang.generate(env)
+        clangxx.generate(env)
+    elif env.use_hot_reload:
+        # Required for extensions to truly unload.
+        env.Append(CXXFLAGS=["-fno-gnu-unique"])
+
+    env.Append(CCFLAGS=["-fPIC", "-Wwrite-strings"])
+    env.Append(LINKFLAGS=["-Wl,-R,'$$ORIGIN'"])
+
+    if env["arch"] == "x86_64":
+        # -m64 and -m32 are x86-specific already, but it doesn't hurt to
+        # be clear and also specify -march=x86-64. Similar with 32-bit.
+        env.Append(CCFLAGS=["-m64", "-march=x86-64"])
+        env.Append(LINKFLAGS=["-m64", "-march=x86-64"])
+    elif env["arch"] == "x86_32":
+        env.Append(CCFLAGS=["-m32", "-march=i686"])
+        env.Append(LINKFLAGS=["-m32", "-march=i686"])
+    elif env["arch"] == "arm64":
+        env.Append(CCFLAGS=["-march=armv8-a"])
+        env.Append(LINKFLAGS=["-march=armv8-a"])
+    elif env["arch"] == "rv64":
+        env.Append(CCFLAGS=["-march=rv64gc"])
+        env.Append(LINKFLAGS=["-march=rv64gc"])
+
+    env.Append(CPPDEFINES=["LINUX_ENABLED", "UNIX_ENABLED"])
+
+    # Refer to https://github.com/godotengine/godot/blob/master/platform/linuxbsd/detect.py
+    if env["lto"] == "auto":
+        env["lto"] = "full"
+
+    common_compiler_flags.generate(env)