背景

ReactNative-Android混合开发，android第三方sdk里包含了libc++_shared.so 和ReactNative自带的libc++_shared.so有冲突：> More than one file was found with OS independent path 'lib/x86/libc++_shared.so'
处理冲突办法是在build.gradle文件里添加一下配置：

android {
    packagingOptions {
      pickFirst 'lib/x86/libc++_shared.so'
      pickFirst 'lib/arm64-v8a/libc++_shared.so'
      pickFirst 'lib/armeabi-v7a/libc++_shared.so'
      pickFirst 'lib/x86_64/libc++_shared.so'
    }

APP运行起来后，又出现crash：

01-27 13:49:25.006 20705 20750 F libc    : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 20750 (mqt_native_modu), pid 20705 (xxx)
01-27 13:49:25.154 20792 20792 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-27 13:49:25.154 20792 20792 F DEBUG   : Build fingerprint: 'google/sailfish/sailfish:10/QP1A.191005.007.A3/5972272:user/release-keys'
01-27 13:49:25.154 20792 20792 F DEBUG   : Revision: '0'
01-27 13:49:25.154 20792 20792 F DEBUG   : ABI: 'arm64'
01-27 13:49:25.155 20792 20792 F DEBUG   : Timestamp: 2021-01-27 13:49:25+0800
01-27 13:49:25.155 20792 20792 F DEBUG   : pid: 20705, tid: 20750, name: mqt_native_modu  >>> com.example.reactnativexxx <<<
01-27 13:49:25.155 20792 20792 F DEBUG   : uid: 10262
01-27 13:49:25.156 20792 20792 F DEBUG   : signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
01-27 13:49:25.156 20792 20792 F DEBUG   : Abort message: 'terminating with uncaught exception of type std::bad_cast: std::bad_cast'
01-27 13:49:25.156 20792 20792 F DEBUG   :     x0  0000000000000000  x1  000000000000510e  x2  0000000000000006  x3  0000007de2eea850
01-27 13:49:25.157 20792 20792 F DEBUG   :     x4  3e889d4994eed484  x5  3e889d4994eed484  x6  3e889d4994eed484  x7  7fffff7fffffffff
01-27 13:49:25.157 20792 20792 F DEBUG   :     x8  00000000000000f0  x9  3f899e4a95efd585  x10 fffffff0fffffbdf  x11 0000000000000000
01-27 13:49:25.157 20792 20792 F DEBUG   :     x12 0000000000000005  x13 3a3a647473203a74  x14 0000007ee0a0982c  x15 0000000000000268
01-27 13:49:25.157 20792 20792 F DEBUG   :     x16 0000007ee0ad28b8  x17 0000007ee0ab0710  x18 0000007de222c000  x19 00000000000000ac
01-27 13:49:25.157 20792 20792 F DEBUG   :     x20 00000000000050e1  x21 00000000000000b2  x22 000000000000510e  x23 00000000ffffffff
01-27 13:49:25.157 20792 20792 F DEBUG   :     x24 0000007de2eea990  x25 0000007de2eea9d0  x26 0000007ee2f1e5a8  x27 0000000000000049
01-27 13:49:25.157 20792 20792 F DEBUG   :     x28 0000007e4e3109a0  x29 0000007de2eea900
01-27 13:49:25.157 20792 20792 F DEBUG   :     sp  0000007de2eea830  lr  0000007ee0a6344c  pc  0000007ee0a6346c
01-27 13:49:25.371 20792 20792 F DEBUG   : 
01-27 13:49:25.371 20792 20792 F DEBUG   : backtrace:
01-27 13:49:25.371 20792 20792 F DEBUG   :       #00 pc 000000000008246c  /apex/com.android.runtime/lib64/bionic/libc.so (abort+160) (BuildId: 5812256023147338b8a9538321d4c456)
01-27 13:49:25.371 20792 20792 F DEBUG   :       #01 pc 00000000000bb268  /data/app/xxx-TuEjlPQTfOot9Z_t6V_Wng==/lib/arm64/libfbjni.so (BuildId: 8edc347b17ae03442aeaf32376fe2c404c260276)
01-27 13:49:25.371 20792 20792 F DEBUG   :       #02 pc 00000000000a45a4  /data/app/xxx-TuEjlPQTfOot9Z_t6V_Wng==/lib/arm64/libfbjni.so (BuildId: 8edc347b17ae03442aeaf32376fe2c404c260276)
01-27 13:49:25.371 20792 20792 F DEBUG   :       #03 pc 00000000000b83fc  /data/app/xxx-TuEjlPQTfOot9Z_t6V_Wng==/lib/arm64/libfbjni.so (BuildId: 8edc347b17ae03442aeaf32376fe2c404c260276)
01-27 13:49:25.371 20792 20792 F DEBUG   :       #04 pc 00000000000b7b00  /data/app/xxx-TuEjlPQTfOot9Z_t6V_Wng==/lib/arm64/libfbjni.so (BuildId: 8edc347b17ae03442aeaf32376fe2c404c260276)
01-27 13:49:25.371 20792 20792 F DEBUG   :       #05 pc 00000000000b7a80  /data/app/xxx-TuEjlPQTfOot9Z_t6V_Wng==/lib/arm64/libfbjni.so (__cxa_throw+120) (BuildId: 8edc347b17ae03442aeaf32376fe2c404c260276)

分析

网上搜索到，和ReactNative的版本有关，0.62以上版本有这个问题。

处理方法：

一、降级ReactNative版本到0.62以下（未尝试）
二、将libc++_shared.so以静态库的形式打包进sdk

         externalNativeBuild {
             cmake {
                 cppFlags "-std=c++14"
-                arguments "-DCMAKE_SYSTEM_NAME=Android", "-DANDROID_STL=c++_shared", "-DANDROID_TOOLCHAIN=clang"
+                arguments "-DCMAKE_SYSTEM_NAME=Android", "-DANDROID_STL=c++_static", "-DANDROID_TOOLCHAIN=clang"
             }
         }
     }

参考链接https://github.com/facebook/react-native/issues/29377

不得不说RN的坑是真多，对开发极度不友好。