//
// Copyright (C) 2014 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_defaults {
    name: "libbacktrace_common",

    cflags: [
        "-Wall",
        "-Werror",
    ],

    clang_cflags: ["-Wno-inline-asm"],

    // The latest clang (r230699) does not allow SP/PC to be declared in inline asm lists.
    include_dirs: ["external/libunwind/include/tdep"],

    // TODO: LLVM_DEVICE_BUILD_MK
    // TODO: LLVM_HOST_BUILD_MK

    target: {
        host: {
            // -fno-omit-frame-pointer should be set for host build. Because currently
            // libunwind can't recognize .debug_frame using dwarf version 4, and it relies
            // on stack frame pointer to do unwinding on x86.
            // $(LLVM_HOST_BUILD_MK) overwrites -fno-omit-frame-pointer. so the below line
            // must be after the include.
            cflags: [
                "-Wno-extern-c-compat",
                "-fno-omit-frame-pointer",
            ],
        },

        darwin: {
            enabled: false,
        },
    },

    multilib: {
        lib32: {
            suffix: "32",
        },
        lib64: {
            suffix: "64",
        },
    }
}

libbacktrace_sources = [
    "Backtrace.cpp",
    "BacktraceCurrent.cpp",
    "BacktracePtrace.cpp",
    "thread_utils.c",
    "ThreadEntry.cpp",
    "UnwindCurrent.cpp",
    "UnwindMap.cpp",
    "UnwindPtrace.cpp",
]

cc_library {
    name: "libbacktrace",
    defaults: ["libbacktrace_common"],
    host_supported: true,

    srcs: [
        "BacktraceMap.cpp",
    ],

    target: {
        darwin: {
            enabled: true,
        },
        linux: {
            srcs: libbacktrace_sources,

            shared_libs: [
                "libbase",
                "liblog",
                "libunwind",
            ],

            static_libs: ["libcutils"],
            host_ldlibs: ["-lrt"],
        },
        android: {
            srcs: libbacktrace_sources,

            shared_libs: [
                "libbase",
                "liblog",
                "libunwind",
            ],

            static_libs: ["libcutils"],
        },
    },
}

cc_library_shared {
    name: "libbacktrace_test",
    defaults: ["libbacktrace_common"],
    host_supported: true,
    strip: {
        none: true,
    },
    cflags: ["-O0"],
    srcs: ["backtrace_testlib.c"],
}
