本文介绍如何解析Flutter OpenHarmony化版本libflutter.so相关的崩溃堆栈。1. 介绍llvm-addr2line 工具是一个可以将指令的地址和可执行映像转换成文件名、函数名和源代码行数的工具。一般适用于带有 symbol 信息的so库。2. 工具位置在DevEco Studio和Command Line Tools for OpenHarmony的sdk目录下有这个工具对应路径如下Windows: sdk/default/openharmony/native/llvm/bin/llvm-addr2line.exeLinux/Mac: sdk/default/openharmony/native/llvm/bin/llvm-addr2line可以将 llvm-addr2line 所在目录配置到环境变量PATH里如export PATH/Applications/DevEco-Studio.app/Contents/sdk/default/openharmony/native/llvm/bin:$PATH3. 使用命令llvm-addr2line -f -e so.unstripped/libflutter.so[addr1][addr2]4. 如何获取带有 symbol 的 libflutter.so 文件4.1 使用本地编译的engine产物debug 版本src/out/ohos_debug_unopt_arm64/so.unstripped/libflutter.sorelease 版本src/out/ohos_release_arm64/so.unstripped/libflutter.soprofile 版本src/out/ohos_profile_arm64/so.unstripped/libflutter.so4.2 在云端产物中下载在使用的flutter_flutter版本中找到使用的flutter_engine版本的commitid。在文件flutter_flutter/bin/internal/engine.ohos.har.version中。根据commitid 8ef94277f0029e61ff6a96f630d0f10b60330cd8下载对应版本 libflutter.so 的zip文件debug 版本https://flutter-ohos.obs.cn-south-1.myhuaweicloud.com/flutter_infra_release/flutter/8ef94277f0029e61ff6a96f630d0f10b60330cd8/ohos-arm64/symbols.ziprelease 版本https://flutter-ohos.obs.cn-south-1.myhuaweicloud.com/flutter_infra_release/flutter/8ef94277f0029e61ff6a96f630d0f10b60330cd8/ohos-arm64-release/symbols.zipprofile 版本https://flutter-ohos.obs.cn-south-1.myhuaweicloud.com/flutter_infra_release/flutter/8ef94277f0029e61ff6a96f630d0f10b60330cd8/ohos-arm64-profile/symbols.zip5. 使用示例libflutter.so 相关的部分崩溃日志#00pc00000000001b5a34/system/lib/ld-musl-aarch64.so.1(__timedwait_cp188)(ef860a9c8bd64e964a4dd4ef838876e1) #01pc00000000001b7a3c/system/lib/ld-musl-aarch64.so.1(__pthread_cond_timedwait188)(ef860a9c8bd64e964a4dd4ef838876e1) #02pc000000000021d450/data/storage/el1/bundle/libs/arm64/libflutter.so(85c51e03a4f191b946582701e79e1be4a0c83959) #03pc00000000001f21f4/data/storage/el1/bundle/libs/arm64/libflutter.so(85c51e03a4f191b946582701e79e1be4a0c83959)获取带有 symbol 的文件so.unstripped/libflutter.so可以将错误堆栈中的地址转换为具体的报错代码行数。执行命令llvm-addr2line -f -e so.unstripped/libflutter.so00000000001b5a3400000000001b7a3c000000000021d45000000000001f21f4解析后的结果_ZNSt21_LIBCPP_ABI_NAMESPACE21__libcpp_condvar_waitB6v15004EP14pthread_cond_tP15pthread_mutex_t/home/hazy/tools/ohos-v5.0.3.900/command-line-tools/sdk/default/openharmony/native/llvm/include/c/v1/__threading_support:335_ZN7flutter16PlatformViewOHOS13NotifyChangedERK7SkISize/home/hazy/work/engine_build/engine_daily/src/out/ohos_release_arm64/../../flutter/shell/platform/ohos/platform_view_ohos.cpp:192其他分析CppCrashflutter_flutterflutter_engine
