load("@rules_cc//cc:cc_binary.bzl", "cc_binary")
load("@rules_cc//cc:cc_library.bzl", "cc_library")

COPTS = [
    "-Wall",
    "-Werror",
    "-Wno-macro-redefined",
    "-Wno-missing-field-initializers",
    "-Wno-sign-compare",
    "-Wno-unused-parameter",
]

cc_library(
    name = "libfdt",
    srcs = glob([
        "libfdt/*.h",
        "libfdt/*.c",
    ]),
    copts = COPTS,
    includes = ["libfdt"],
)

genrule(
    name = "dtc_lexer_srcs",
    srcs = ["dtc-lexer.l"],
    outs = ["dtc-lexer.lex.c"],
    cmd = "export PATH= ; $(execpath @kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:flex) -o $@ $<",
    tools = ["@kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:flex"],
)

genrule(
    name = "dtc_parser_srcs",
    srcs = ["dtc-parser.y"],
    outs = [
        "dtc-parser.c",
        "dtc-parser.h",
    ],
    cmd = "export PATH= ; $(execpath @kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:bison) -d -o $(location dtc-parser.c) $(location dtc-parser.y)",
    tools = [
        "@kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:bison",
    ],
)

UTILS = [
    "util.c",
    "util.h",
    ":version_gen_header",
]

genrule(
    name = "version_gen_header",
    srcs = [
        "METADATA",
        "METADATA_version.sed",
        "version_gen.h.in",
    ],
    outs = ["version_gen.h"],
    cmd = """
        # Avoid accessing host tools.
        export PATH=
        version="$$($(execpath @kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:sed) \\
            -f $(location METADATA_version.sed) \\
            -n $(location METADATA))-Android-build"
        $(execpath @kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:sed) \\
            s/@VCS_TAG@/$${version}/ $(location version_gen.h.in) > $@
    """,
    tools = ["@kleaf//build/kernel/kleaf/bootstrap_hermetic_tools:sed"],
)

cc_binary(
    name = "dtc",
    srcs = UTILS + [
        "checks.c",
        "data.c",
        "dtc.c",
        "dtc.h",
        "flattree.c",
        "fstree.c",
        "livetree.c",
        "srcpos.c",
        "srcpos.h",
        "treesource.c",
        ":dtc_lexer_srcs",
        ":dtc_parser_srcs",
    ],
    copts = COPTS,
    defines = ["NO_YAML"],
    visibility = [
        "@kleaf//build/kernel:__subpackages__",
    ],
    deps = [":libfdt"],
)

cc_binary(
    name = "fdtget",
    srcs = UTILS + [
        "fdtget.c",
    ],
    copts = COPTS,
    defines = ["NO_YAML"],
    deps = [":libfdt"],
)

cc_binary(
    name = "fdtput",
    srcs = UTILS + [
        "fdtput.c",
    ],
    copts = COPTS,
    defines = ["NO_YAML"],
    deps = [":libfdt"],
)

cc_binary(
    name = "fdtdump",
    srcs = UTILS + [
        "fdtdump.c",
    ],
    copts = COPTS,
    defines = ["NO_YAML"],
    deps = [":libfdt"],
)

cc_binary(
    name = "fdtoverlay",
    srcs = UTILS + [
        "fdtoverlay.c",
    ],
    copts = COPTS,
    defines = ["NO_YAML"],
    visibility = [
        "@kleaf//build/kernel:__subpackages__",
    ],
    deps = [":libfdt"],
)