Initialize PythonBPF project and toolchain

pythonbpf/codegen.py

@@ -0,0 +1,19 @@
+import ast
+from llvmlite import ir
+
+def compile_to_ir(filename: str, output: str):
+    with open(filename) as f:
+        ast.parse(f.read(), filename)
+
+    module = ir.Module(name="pythonbpf")
+    func_ty = ir.FunctionType(ir.IntType(64), [], False)
+    func = ir.Function(module, func_ty, name="trace_execve")
+
+    block = func.append_basic_block(name="entry")
+    builder = ir.IRBuilder(block)
+    builder.ret(ir.IntType(64)(0))
+
+    with open(output, "w") as f:
+        f.write(str(module))
+
+    return output

pythonbpf/decorators.py

@@ -0,0 +1,15 @@
+def tracepoint(name: str):
+    def wrapper(fn):
+        fn._section = f"tracepoint/{name}"
+        return fn
+    return wrapper
+
+def license(name: str):
+    def wrapper(fn):
+        fn._license = name
+        return fn
+    return wrapper
+
+def trace_printk(msg: str):
+    # placeholder — real version lowers to IR later
+    print(f"[trace_printk] {msg}")