Add 6.12 vmlinux.h genrules

Generate vmlinux.h from the kernel prebuilt vmlinux

Bug: 421990777
Test: Manual; build bpf prog with "vmlinux_h_6_12" header
Change-Id: I5647a3c2d7d1695aa42fd9636dd7f7abd4a1dc44
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>

include/vmlinux/Android.bp

@@ -0,0 +1,61 @@
+// Copyright (C) 2025 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+genrule {
+    name: "vmlinux_h_6_12_arm64",
+    cmd: "mkdir -p $(genDir)/6.12/arm64 && $(location bpftool) btf dump file $(location :vmlinux_6_12_arm64) format c > $(genDir)/6.12/arm64/vmlinux.h",
+    srcs: [
+        ":vmlinux_6_12_arm64",
+    ],
+    tools: ["bpftool"],
+    out: [
+        "6.12/arm64/vmlinux.h",
+    ],
+    export_include_dirs: ["6.12/arm64"],
+}
+
+genrule {
+    name: "vmlinux_h_6_12_x86_64",
+    cmd: "mkdir -p $(genDir)/6.12/x86_64 && $(location bpftool) btf dump file $(location :vmlinux_6_12_x86_64) format c > $(genDir)/6.12/x86_64/vmlinux.h",
+    srcs: [
+        ":vmlinux_6_12_x86_64",
+    ],
+    tools: ["bpftool"],
+    out: [
+        "6.12/x86_64/vmlinux.h",
+    ],
+    export_include_dirs: ["6.12/x86_64"],
+}
+
+cc_library_headers {
+    name: "vmlinux_h_6_12",
+    arch: {
+        arm: {
+            generated_headers: ["vmlinux_h_6_12_arm64"],
+            export_generated_headers: ["vmlinux_h_6_12_arm64"],
+        },
+        arm64: {
+            generated_headers: ["vmlinux_h_6_12_arm64"],
+            export_generated_headers: ["vmlinux_h_6_12_arm64"],
+        },
+        x86: {
+            generated_headers: ["vmlinux_h_6_12_x86_64"],
+            export_generated_headers: ["vmlinux_h_6_12_x86_64"],
+        },
+        x86_64: {
+            generated_headers: ["vmlinux_h_6_12_x86_64"],
+            export_generated_headers: ["vmlinux_h_6_12_x86_64"],
+        },
+    },
+}