AOSP 9.0

  1. Add libutilscallstack to your shared_libs of Android.bp.
  2. Add #include <utils/CallStack.h> to your c++ code.

  3. Add below code to the location you want to print call stack:

    android::CallStack callstack;
callstack.update();
callstack.log("log-tag");

    The following log is the example I use CallStack to print:

     04-30 00:02:58.768  1569  1599 D enableVsyncLocked: #00 pc 000000000008de95  /system/lib64/libsurfaceflinger.so (android::impl::EventThread::threadMain()+981)
 04-30 00:02:58.768  1569  1599 D enableVsyncLocked: #01 pc 000000000008f956  /system/lib64/libsurfaceflinger.so (_ZNSt3__114__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEMN7android4impl11EventThreadEFvvEPS9_EEEEEPvSE_+54)
 04-30 00:02:58.768  1569  1599 D enableVsyncLocked: #02 pc 0000000000092c5b  /system/lib64/libc.so (__pthread_start(void*)+27)
 04-30 00:02:58.768  1569  1599 D enableVsyncLocked: #03 pc 000000000002af2d  /system/lib64/libc.so (__start_thread+61)
 04-30 00:02:58.774  1569  1599 D setCallback: #00 pc 00000000000c8159  /system/lib64/libsurfaceflinger.so (android::DispSyncSource::setCallback(android::VSyncSource::Callback*)+73)
 04-30 00:02:58.774  1569  1599 D setCallback: #01 pc 000000000008deda  /system/lib64/libsurfaceflinger.so (android::impl::EventThread::threadMain()+1050)
 04-30 00:02:58.774  1569  1599 D setCallback: #02 pc 000000000008f956  /system/lib64/libsurfaceflinger.so (_ZNSt3__114__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEMN7android4impl11EventThreadEFvvEPS9_EEEEEPvSE_+54)
 04-30 00:02:58.774  1569  1599 D setCallback: #03 pc 0000000000092c5b  /system/lib64/libc.so (__pthread_start(void*)+27)
 04-30 00:02:58.774  1569  1599 D setCallback: #04 pc 000000000002af2d  /system/lib64/libc.so (__start_thread+61)

    It’s very useful to inspect or debug c++ code.

AOSP 11

In AOSP 11, we also need to include libutils_headers to project Android.bp’s header_libs based on previous steps. There is an example from libserviceutils:

cc_library_static {
    name: "libserviceutils",

    vendor_available: true,

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

    srcs: [
        "PriorityDumper.cpp",
    ],

    header_libs: [
        "libutils_headers",
    ],

    export_header_lib_headers: [
        "libutils_headers",
    ],

    export_include_dirs: ["include"],
}

Thanks sysescool for pointing out this change.