209 lines
9.6 KiB
Markdown
209 lines
9.6 KiB
Markdown
# 1. gdb coredump分析
|
||
|
||
  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
|
||
|
||
```
|
||
$ 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**
|
||
|
||
```
|
||
$ ulimit -a
|
||
core file size (blocks, -c) 0 // 0表示终端未开启core dump
|
||
data seg size (kbytes, -d) unlimited
|
||
scheduling priority (-e) 0
|
||
file size (blocks, -f) unlimited
|
||
pending signals (-i) 63499
|
||
max locked memory (kbytes, -l) 65536
|
||
max memory size (kbytes, -m) unlimited
|
||
open files (-n) 1024
|
||
pipe size (512 bytes, -p) 8
|
||
POSIX message queues (bytes, -q) 819200
|
||
real-time priority (-r) 0
|
||
stack size (kbytes, -s) 8192
|
||
cpu time (seconds, -t) unlimited
|
||
max user processes (-u) 63499
|
||
virtual memory (kbytes, -v) unlimited
|
||
file locks (-x) unlimited
|
||
```
|
||
|
||
解决：
|
||
```
|
||
$ ulimit -c unlimited
|
||
```
|
||
|
||
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 <http://gnu.org/licenses/gpl.html>
|
||
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:
|
||
<http://www.gnu.org/software/gdb/bugs/>.
|
||
Find the GDB manual and other documentation resources online at:
|
||
<http://www.gnu.org/software/gdb/documentation/>.
|
||
|
||
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. // 表示coredump文件与可执行文件不匹配
|
||
[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：
|
||
|
||
修改：//build/sdk_config.cmake
|
||
|
||
```
|
||
# 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 <http://gnu.org/licenses/gpl.html>
|
||
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:
|
||
<http://www.gnu.org/software/gdb/bugs/>.
|
||
Find the GDB manual and other documentation resources online at:
|
||
<http://www.gnu.org/software/gdb/documentation/>.
|
||
|
||
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=<optimized out>)
|
||
at /usr/include/c++/9/bits/shared_ptr_base.h:1020
|
||
#9 0x000055c247b303fd in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(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*, 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=<optimized out>, argv=<optimized out>)
|
||
at /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/test/middleware/McuManager/mainTest.cpp:22
|
||
(gdb)
|
||
``` |