Android.bp

// Copyright (C) 2026 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.

cc_library_static {
    // This library must be separate since it uses callback.S, which will create
    // callback.o. liblfi also creates a callback.o from callback.c. If the two
    // libraries are combined it causes a conflict.
    name: "liblfi-core-s",
    include_dirs: [
        "external/lfi/lfi-runtime/core",
    ],
    arch: {
        arm64: {
            srcs: [
                "core/arch/arm64/callback.S",
                "core/arch/arm64/runtime.S",
                "core/arch/arm64/trampoline.S",
            ],
        },
        x86_64: {
            srcs: [
                "core/arch/x64/callback.S",
                "core/arch/x64/runtime.S",
                "core/arch/x64/trampoline.S",
            ],
        },
        riscv64: {
            srcs: [
                "core/arch/riscv64/callback.S",
                "core/arch/riscv64/runtime.S",
                "core/arch/riscv64/trampoline.S",
            ],
        },
    },
    visibility: [":__subpackages__"],
    min_sdk_version: "apex_inherit",
    apex_available: [
        "com.android.media.swcodec",
    ],
}

cc_defaults {
    name: "lfi-runtime-defaults",
    include_dirs: [
        "external/lfi/lfi-runtime/core/include",
        "external/lfi/lfi-runtime/linux/include",
    ],
    cflags: [
        "-Wno-gnu-zero-variadic-macro-arguments",
        "-Wno-unused-parameter",
        "-fno-delete-null-pointer-checks",
        "-fno-strict-aliasing",
        "-fno-strict-overflow",
        "-fvisibility=hidden",
    ],
    shared_libs: [
        "liblog",
    ],
}

cc_library {
    name: "liblfi",
    defaults: ["lfi-runtime-defaults"],
    srcs: [
        "core/arch_asm.c",
        "core/box.c",
        "core/boxmap.c",
        "core/core.c",
        "core/ctx.c",
        "core/error.c",
        "core/extalloc.c",
        "core/log.c",
        "core/mmap.c",
        "core/trampoline.c",
        "linux/buf.c",
        "linux/cwalk.c",
        "linux/debugger.c",
        "linux/elfload.c",
        "linux/elfsym.c",
        "linux/fd.c",
        "linux/host.c",
        "linux/linux.c",
        "linux/list.c",
        "linux/path.c",
        "linux/perf.c",
        "linux/proc.c",
        "linux/sys_minimal.c",
        "linux/sys/sys_arch_prctl.c",
        "linux/sys/sys_brk.c",
        "linux/sys/sys_exit.c",
        "linux/sys/sys_exit_group.c",
        "linux/sys/sys_lfi_pause.c",
        "linux/sys/sys_mmap.c",
        "linux/sys/sys_munmap.c",
        "linux/sys/sys_none.c",
        "linux/thread.c",
        "linux/trampoline.c",
    ],
    cflags: [
        "-DCONFIG_ENABLE_DYLD=1",
        "-DCONFIG_MAX_FUTEXES=512",
        "-DHAVE_ARC4RANDOM_BUF",
        "-DHAVE_GETAUXVAL",
        "-DHAVE_GETENTROPY",
        "-DHAVE_GETRANDOM",
        "-DHAVE_MEMFD_CREATE",
        "-DHAVE_R_DEBUG",
        "-DHAVE_SYSINFO",
        "-DHAVE_SYS_FUTEX",
        "-DHAVE_SYS_GETDENTS64",
        "-DHAVE_SYS_MEMFD_CREATE",
        "-DSYS_MINIMAL",
    ],
    target: {
        android_arm64: {
            srcs: [
                "core/arch/arm64/callback.c",
                "core/arch/arm64/regs.c",
                "linux/arch/arm64/sys.c",
            ],
            include_dirs: [
                "external/lfi/lfi-runtime/core/arch/arm64",
                "external/lfi/lfi-runtime/linux/arch/arm64",
            ],
        },
        android_x86_64: {
            srcs: [
                "core/arch/x64/callback.c",
                "core/arch/x64/regs.c",
                "linux/arch/x64/sys.c",
            ],
            include_dirs: [
                "external/lfi/lfi-runtime/core/arch/x64",
                "external/lfi/lfi-runtime/linux/arch/x64",
            ],
        },
        android_riscv64: {
            srcs: [
                "core/arch/riscv64/callback.c",
                "core/arch/riscv64/regs.c",
                "linux/arch/riscv64/sys.c",
            ],
            include_dirs: [
                "external/lfi/lfi-runtime/core/arch/riscv64",
                "external/lfi/lfi-runtime/linux/arch/riscv64",
            ],
        },
    },
    arch: {
        x86_64: {
            enabled: false,
        },
    },
    whole_static_libs: [
        "lfi-verifier",
        "liblfi-core-s",
    ],
    export_include_dirs: [
        "linux",
        "linux/include",
        "core",
        "core/include",
    ],
    visibility: [
        ":__subpackages__",
        "//external/libopus:__subpackages__",
        "//build/soong:__subpackages__",
        "//frameworks/av/media/module/libapexcodecs:__subpackages__",
    ],
    min_sdk_version: "apex_inherit",
    apex_available: [
        "com.android.media.swcodec",
    ],
}

cc_binary {
    name: "lfi-run",
    defaults: ["lfi-runtime-defaults"],
    srcs: ["tools/lfi-run/main.c"],
    static_libs: [
        "liblfi",
    ],
    arch: {
        x86_64: {
            enabled: false,
        },
    },
}

cc_binary {
    name: "lfi-ubench",
    defaults: ["lfi-runtime-defaults"],
    srcs: [
        "tools/lfi-ubench/lib.c",
        "tools/lfi-ubench/main.c",
    ],
    static_libs: [
        "liblfi",
    ],
    arch: {
        x86_64: {
            enabled: false,
        },
    },
}