From e2eacfd48e47fcf4a19e3c51097477ca6685073e Mon Sep 17 00:00:00 2001 From: Fancy code <258828110.@qq.com> Date: Wed, 15 May 2024 22:19:14 +0800 Subject: [PATCH] Core dump test guide. --- doc/gdb_coredump_guide.md | 170 +++++++++++++++++++++++++++++++++++++- 1 file changed, 169 insertions(+), 1 deletion(-) diff --git a/doc/gdb_coredump_guide.md b/doc/gdb_coredump_guide.md index 213e4333..34d83415 100644 --- a/doc/gdb_coredump_guide.md +++ b/doc/gdb_coredump_guide.md @@ -2,6 +2,35 @@   本文介绍ubuntu系统环境下coredump文件的分析方法。 +**一个coredump示例：** + +``` +$ ../output_files/test/bin/McuManagerTest --gtest_filter=McuManagerTest.RH_INTEGRATION_McuManager_AUTO_OtherSideSendIpcMission +Note: Google Test filter = McuManagerTest.RH_INTEGRATION_McuManager_AUTO_OtherSideSendIpcMission +[==========] Running 1 test from 1 test suite. +[----------] Global test environment set-up. +[----------] 1 test from McuManagerTest +NewLog succeed. +LogImplInit +[ RUN ] McuManagerTest.RH_INTEGRATION_McuManager_AUTO_OtherSideSendIpcMission +2024-05-15 17:43:04,782 INFO [default] [McuManagerMakePtr.cpp:23]:CreateMcuManager is ok. + +2024-05-15 17:43:04,783 INFO [default] [IMcuManager.cpp:72]:Instance changed succeed. + +2024-05-15 17:43:04,783 INFO [default] [UartDeviceImpl.cpp:277]:Create the uart device object. + +Can't Open Serial Port: No such file or directory +2024-05-15 17:43:04,784 ERROR [default] [McuDevice.cpp:51]:IUartOpen failed. + +2024-05-15 17:43:04,787 INFO [default] [UartDeviceImpl.cpp:277]:Create the uart device object. + +Can't Open Serial Port: No such file or directory +2024-05-15 17:43:04,787 ERROR [default] [McuDevice.cpp:51]:IUartOpen failed. + +terminate called without an active exception +Aborted (core dumped) +``` + ## 1.1. coredump文件生成路径查询 ``` @@ -9,6 +38,21 @@ $ cat /proc/sys/kernel/core_pattern |/usr/share/apport/apport -p%p -s%s -c%c -d%d -P%P -u%u -g%g -- %E ``` +修改coredump文件生成路径： + +``` +$ sudo sh -c 'echo /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p > /proc/sys/kernel/core_pattern' +$ cat /proc/sys/kernel/core_pattern +/home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p +``` +命令： +sudo sh -c 'echo /path/core.%e.%p > /proc/sys/kernel/core_pattern' + +例如： +``` +sudo sh -c 'echo /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p > /proc/sys/kernel/core_pattern' +``` + **发现路径下并未生成coredump文件** ``` @@ -36,4 +80,128 @@ file locks (-x) unlimited $ ulimit -c unlimited ``` -sudo echo /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p> /proc/sys/kernel/core_pattern \ No newline at end of file +sudo echo /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p > /proc/sys/kernel/core_pattern + +## 1.2. gdb查看堆栈信息 + +**Ubuntu系统需要加sudo执行程序才会生成coredump文件。** + +### 1.2.1. 无法识别coredump文件 + +  在gdb中无法识别coredump文件，如下所示： + +``` +$ sudo gdb ../output_files/test/bin/McuManagerTest core.smbd.3390383 +[sudo] password for xiaojiazhu: +Sorry, try again. +[sudo] password for xiaojiazhu: +GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2 +Copyright (C) 2020 Free Software Foundation, Inc. +License GPLv3+: GNU GPL version 3 or later +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. +Type "show copying" and "show warranty" for details. +This GDB was configured as "x86_64-linux-gnu". +Type "show configuration" for configuration details. +For bug reporting instructions, please see: +. +Find the GDB manual and other documentation resources online at: + . + +For help, type "help". +Type "apropos word" to search for commands related to "word"... +Reading symbols from ../output_files/test/bin/McuManagerTest... + +warning: core file may not match specified executable file. +[New LWP 3390383] +Core was generated by `/usr/sbin/smbd --foreground --no-process-group'. +Program terminated with signal SIGABRT, Aborted. +#0 0x00007fd59718600b in ?? () +(gdb) bt +#0 0x00007fd59718600b in ?? () +#1 0x0000000000001c80 in ?? () +#2 0x0000000000000000 in ?? () +``` + +由于gdb和asan同时启用会冲突，导致无法识别coredump文件。解决办法如下： + +``` +# Gdb debug +if(${TARGET_PLATFORM} MATCHES ${DEFINE_LINUX}) + message("---------------------------Debug mode.-----------------------") + SET(CMAKE_BUILD_TYPE "Debug") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -Wall -g -ggdb") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -Wall -g -ggdb") + SET(CMAKE_CXX_FLAGS_DEBUG "$ENV{CXXFLAGS} -O0 -Wall -g -ggdb") + SET(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall") + # asan + # set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=leak -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined") + # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=leak -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined") +else() + message("---------------------------Release mode.-----------------------") + SET(CMAKE_BUILD_TYPE "Release") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Os") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Os") +endif() +``` + +解决后： + +``` +$ sudo gdb ../output_files/test/bin/McuManagerTest core.McuManagerTest.3406751 +GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2 +Copyright (C) 2020 Free Software Foundation, Inc. +License GPLv3+: GNU GPL version 3 or later +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. +Type "show copying" and "show warranty" for details. +This GDB was configured as "x86_64-linux-gnu". +Type "show configuration" for configuration details. +For bug reporting instructions, please see: +. +Find the GDB manual and other documentation resources online at: + . + +For help, type "help". +Type "apropos word" to search for commands related to "word"... +Reading symbols from ../output_files/test/bin/McuManagerTest... +[New LWP 3406751] +[New LWP 3406753] +[New LWP 3406752] +[Thread debugging using libthread_db enabled] +Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". +Core was generated by `../output_files/test/bin/McuManagerTest --gtest_filter=McuManagerTest.RH_INTEGR'. +Program terminated with signal SIGABRT, Aborted. +#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 +50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. +[Current thread is 1 (Thread 0x7fd355968740 (LWP 3406751))] +(gdb) bt +#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 +#1 0x00007fd35598f859 in __GI_abort () at abort.c:79 +#2 0x00007fd355d678d1 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 +#3 0x00007fd355d7337c in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 +#4 0x00007fd355d733e7 in std::terminate() () from /lib/x86_64-linux-gnu/libstdc++.so.6 +#5 0x000055c247b3ae41 in std::thread::operator= (__t=..., this=0x55c248d19748) at /usr/include/c++/9/thread:152 +#6 McuProtocol::Init (this=this@entry=0x55c248d196f8) at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/src/McuProtocol.cpp:58 +#7 0x000055c247b03e57 in McuManagerImpl::Init (this=0x55c248d19680) + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/middleware/McuManager/src/McuManagerImpl.cpp:46 +#8 0x000055c247acd3d4 in McuManagerTest::McuManagerTest_RH_INTEGRATION_McuManager_AUTO_OtherSideSendIpcMission_Test::TestBody (this=) + at /usr/include/c++/9/bits/shared_ptr_base.h:1020 +#9 0x000055c247b303fd in void testing::internal::HandleExceptionsInMethodIfSupported(testing::Test*, void (testing::Test::*)(), char const*) () at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#10 0x000055c247b23343 in testing::Test::Run() () at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#11 0x000055c247b2342b in testing::TestInfo::Run() () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#12 0x000055c247b2376e in testing::TestSuite::Run() () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#13 0x000055c247b2a0fa in testing::internal::UnitTestImpl::RunAllTests() () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#14 0x000055c247b3085e in bool testing::internal::HandleExceptionsInMethodIfSupported(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#15 0x000055c247b23529 in testing::UnitTest::Run() () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/utils/McuProtocol/./include/McuProtocol.h:121 +#16 0x000055c247ac9287 in RUN_ALL_TESTS () + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/external/gtest/googletest-release-1.11.0/googletest/include/gtest/gtest.h:2490 +#17 main (argc=, argv=) + at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/test/middleware/McuManager/mainTest.cpp:22 +(gdb) +``` \ No newline at end of file