Android 收集Native层崩溃日志

环境

Mac、breakpad源码、minidump_stackwalk

步骤

NDK编写崩溃操作

/**
 * 引起 crash
 */
void Crash() {
    volatile int *a = (int *) (NULL);
    *a = 1;
}

extern "C"
JNIEXPORT void JNICALL
Java_com_dodola_breakpad_MainActivity_crash(JNIEnv *env, jobject obj) {
    Crash();
}

通过cmake编译breakpad源码
cmake配置

cmake_minimum_required(VERSION 3.4.1)
project(breakpad-core)

set(ENABLE_INPROCESS ON)
set(ENABLE_OUTOFPROCESS ON)
set(ENABLE_LIBCORKSCREW ON)
set(ENABLE_LIBUNWIND ON)
set(ENABLE_LIBUNWINDSTACK ON)
set(ENABLE_CXXABI ON)
set(ENABLE_STACKSCAN ON)

if (${ENABLE_INPROCESS})
    add_definitions(-DENABLE_INPROCESS)
endif ()
if (${ENABLE_OUTOFPROCESS})
    add_definitions(-DENABLE_OUTOFPROCESS)
endif ()


set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=implicit-function-declaration")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ")

# breakpad
include_directories(external/libbreakpad/src external/libbreakpad/src/common/android/include)
add_subdirectory(external/libbreakpad)
list(APPEND LINK_LIBRARIES breakpad)

add_library(breakpad-core SHARED
        breakpad.cpp)
target_link_libraries(breakpad-core ${LINK_LIBRARIES}
        log)

通过Android studio的/Applications/Android Studio.app/Contents/bin/lldb/bin目录，可以找到minidump_stackwalk进行一个dump日志的的查看
命令：

minidump_stackwalk  1.dmp >crashLog.txt 

日志结果：

Operating system: Android
                  0.0.0 Linux 4.9.97 #1 SMP PREEMPT Fri Apr 12 21:02:27 CST 2019 aarch64
CPU: arm64
     8 CPUs

Crash reason:  SIGSEGV
Crash address: 0x0
Process uptime: not available

Thread 0 (crashed)
 0  libcrash-lib.so + 0x5e0
     x0 = 0x00000077374bf460    x1 = 0x0000007fdd8aab14
     x2 = 0x0000007fdd8aabb0    x3 = 0x0000007734bd6f98
     x4 = 0x0000007fdd8aadd0    x5 = 0x00000077348c4218
     x6 = 0x0000007fdd8aa960    x7 = 0x000000771936be18
     x8 = 0x0000000000000001    x9 = 0x0000000000000000
    x10 = 0x0000000000430000   x11 = 0x0000007734fab6d8
    x12 = 0x00000077bd85f530   x13 = 0x66911f3b52ec0dff
    x14 = 0x00000077bd79c000   x15 = 0xffffffffffffffff
    x16 = 0x0000007718c67fe8   x17 = 0x0000007718c575cc
    x18 = 0x0000000000000001   x19 = 0x0000007737414c00
    x20 = 0x0000000000000000   x21 = 0x0000007737414c00
    x22 = 0x0000007fdd8aade0   x23 = 0x00000077193de661
    x24 = 0x0000000000000004   x25 = 0x00000077bdbd05e0
    x26 = 0x0000007737414ca0   x27 = 0x0000000000000001
    x28 = 0x0000007fdd8aab10    fp = 0x0000007fdd8aaae0
     lr = 0x0000007718c57604    sp = 0x0000007fdd8aaac0
     pc = 0x0000007718c575e0
    Found by: given as instruction pointer in context
 1  libcrash-lib.so + 0x600
     fp = 0x0000007fdd8aab10    lr = 0x0000007734ed0fe4
     sp = 0x0000007fdd8aaaf0    pc = 0x0000007718c57604
    Found by: previous frame's frame pointer
 2  libart.so + 0x577fe0
     fp = 0x1330a83800000001    lr = 0x00000077bdbd05e0
     sp = 0x0000007fdd8aab20    pc = 0x0000007734ed0fe4
    Found by: previous frame's frame pointer