On Thu, Sep 29, 2022 at 07:34:14PM -0700, Jakub Kicinski wrote:

Code generators to turn Netlink specs into C code.
I'm definitely not proud of it.

The main generator is in Python, there's a bash script
to regen all code-gen'ed files in tree after making
spec changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--
v2: - use /* */ comments instead of //

Probably not a very interesting feedback, but there
are still many comments generated in the // style.

For example in this block:

+    if args.mode == "kernel":
+        if args.header:
+            if parsed.kernel_policy == 'global':
+                cw.p(f"// Global operation policy for {parsed.name}")
+
+                struct = Struct(parsed, parsed.global_policy_set, type_list=parsed.global_policy)
+                print_req_policy_fwd(cw, struct)
+                cw.nl()
+
+            for op_name, op in parsed.ops.items():
+                if parsed.kernel_policy == 'per-op' and 'do' in op and 'event' not in op:
+                    cw.p(f"// {op.enum_name} - do")
+                    ri = RenderInfo(cw, parsed, args.mode, op, op_name, "do")
+                    print_req_policy_fwd(cw, ri.struct['request'], op=op)
+                    cw.nl()
+
+            print_kernel_op_table_fwd(parsed, cw)
+        else:
+            if parsed.kernel_policy == 'global':
+                cw.p(f"// Global operation policy for {parsed.name}")
+
+                struct = Struct(parsed, parsed.global_policy_set, type_list=parsed.global_policy)
+                print_req_policy(cw, struct)
+                cw.nl()
+
+            for op_name, op in parsed.ops.items():
+                if parsed.kernel_policy == 'per-op':
+                    for op_mode in {'do', 'dump'}:
+                        if op_mode in op and 'request' in op[op_mode]:
+                            cw.p(f"// {op.enum_name} - {op_mode}")
+                            ri = RenderInfo(cw, parsed, args.mode, op, op_name, op_mode)
+                            print_req_policy(cw, ri.struct['request'], op=op)
+                            cw.nl()
+
+            print_kernel_op_table(parsed, cw)