# 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.

_LIBKMOD_CFLAGS = select({
    "@kleaf//build/kernel/kleaf/platforms/libc:musl": ["-DANDROID_HOST_MUSL"],
    "@kleaf//build/kernel/kleaf/platforms/libc:glibc": ["-DHAVE_DECL_STRNDUPA"],
}) + [
    "-include android/port.h",
    "-Wall",
    "-Werror",
    "-Wno-format",
    "-Wno-unused-parameter",
    "-Wno-unused-variable",
    "-Dsecure_getenv=getenv",
    "-DHAVE_CONFIG_H",
    "-include config.h",
    # See below issues around quote escaping
    #   https://github.com/bazelbuild/bazel/issues/10859
    #   https://github.com/bazelbuild/bazel/issues/21500
    '-DDISTCONFDIR=\\"/lib\\"',
    '-DMODULE_DIRECTORY=\\"/lib/modules\\"',
    '-DSYSCONFDIR=\\"/tmp\\"',
    "-UNDEBUG",
]

cc_library(
    name = "headers",
    srcs = glob(["**/*.h"]),
    includes = [
        ".",
        "libkmod",
    ],
)

cc_library(
    name = "libkmod",
    srcs = [
        "libkmod/libkmod.c",
        "libkmod/libkmod-builtin.c",
        "libkmod/libkmod-config.c",
        "libkmod/libkmod-elf.c",
        "libkmod/libkmod-file.c",
        "libkmod/libkmod-index.c",
        "libkmod/libkmod-list.c",
        "libkmod/libkmod-module.c",
        "libkmod/libkmod-signature.c",
        "shared/array.c",
        "shared/hash.c",
        "shared/scratchbuf.c",
        "shared/strbuf.c",
        "shared/util.c",
    ],
    copts = _LIBKMOD_CFLAGS,
    target_compatible_with = [
        "@platforms//os:linux",
    ],
    deps = [
        ":headers",
    ],
)

cc_binary(
    name = "depmod",
    srcs = [
        "tools/depmod.c",
        "tools/insmod.c",
        "tools/kmod.c",
        "tools/log.c",
        "tools/lsmod.c",
        "tools/modinfo.c",
        "tools/modprobe.c",
        "tools/port.c",
        "tools/rmmod.c",
        "tools/static-nodes.c",
    ],
    copts = _LIBKMOD_CFLAGS,
    target_compatible_with = [
        "@platforms//os:linux",
    ],
    visibility = [
        "@kleaf//build/kernel:__subpackages__",
    ],
    deps = ["libkmod"],
)