load("@//build/kernel/kleaf:hermetic_tools.bzl", "hermetic_genrule")

cc_library(
    name = "libfdt",
    copts = [
        "-Werror",
        "-Wno-macro-redefined",
        "-Wno-sign-compare",
    ],
    includes = ["libfdt"],
    srcs = glob([
        "libfdt/*.h",
        "libfdt/*.c",
    ]),
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

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

hermetic_genrule(
    name = "lexer",
    srcs = ["dtc-lexer.l"],
    outs = ["dtc-lexer.lex.c"],
    cmd = "flex -o$@ $(location dtc-lexer.l)"
)

hermetic_genrule(
    name = "parser",
    srcs = ["dtc-parser.y"],
    outs = ["dtc-parser.tab.c", "dtc-parser.tab.h"],
    cmd = """
      bison -b dtc-parser -d $(location dtc-parser.y)
      cp ./*.tab.c $(location dtc-parser.tab.c)
      cp ./*.tab.h $(location dtc-parser.tab.h)
    """,
)

cc_library(
    name = "dtc_gen",
    copts = copts,
    srcs = [
        ":lexer",
        ":parser",
    ] + glob(["*.h"]),
    includes = ["."],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "dtc",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "checks.c",
        "data.c",
        "dtc.c",
        "flattree.c",
        "fstree.c",
        "livetree.c",
        "srcpos.c",
        "treesource.c",
        "util.c",
    ] + glob(["*.h"]),
    includes = ["."],
    deps = [":libfdt", ":dtc_gen"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "fdtget",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "fdtget.c",
        "util.c",
        "util.h",
        "version_non_gen.h",
    ],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "fdtput",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "fdtput.c",
        "util.c",
        "util.h",
        "version_non_gen.h",
    ],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "fdtdump",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "fdtdump.c",
        "util.c",
        "util.h",
        "version_non_gen.h",
    ],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "fdtoverlay",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "fdtoverlay.c",
        "util.c",
        "util.h",
        "version_non_gen.h",
    ],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

cc_binary(
    name = "fdtoverlaymerge",
    copts = copts,
    defines = ["NO_YAML"],
    srcs = [
        "fdtoverlaymerge.c",
        "util.c",
        "util.h",
        "version_non_gen.h",
    ],
    deps = [":libfdt"],
    target_compatible_with = ["@platforms//os:linux"],
    visibility = ["//visibility:public"],
)

exports_files([
    "libfdt/fdt.h",
    "libfdt/libfdt.h",
    "libfdt/libfdt_env.h",
])