遇到的问题速查

代码过程遇到的一些问题速查表

无法在 linux 正常编译 thread

cmake添加

find_package (Threads REQUIRED)
target_link_libraries(${your_project_name} ${CMAKE_THREAD_LIBS_INIT})

version `GLIBCXX_3.4.29' not found

查看报错 libc 的情况

strings /your_path/libstdc++.so.6 | grep GLIBC

发现确实没有 version `GLIBCXX_3.4.29’

find / -name libstdc++.so.6

在找到的列表里，逐个寻找 GLIBCXX_3.4.29，找到后，将此 libstdc++.so.6 替换到之前错误路径下

OS error code 4: Interrupted system call

error: invalid storage class for function

报错的函数的前面的那一个函数{}不配对

地址消毒器

为什么必须是下面这个顺序？暂时还不晓得

set_target_properties (app PROPERTIES LINK_FLAGS "-fsanitize=address")
set_target_properties (app PROPERTIES LINK_FLAGS "-static")
set_target_properties (app PROPERTIES LINK_FLAGS "-lpthread")

原本是这样的

set_target_properties (app PROPERTIES LINK_FLAGS "-static")
set_target_properties (app PROPERTIES LINK_FLAGS "-lpthread")
set_target_properties (app PROPERTIES LINK_FLAGS "-fsanitize=address")

抛出错误

undefined reference to symbol 'pthread_join@@GLIBC_2.0'
//lib/i386-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

segfault at 11 ip 00007f24b21adcee sp 00007fff7379ded0 error 4 in

refer

run addr2line -e yourSegfaultingProgram 00007f9bebcca90d

• address (after the at) - the location in memory the code is trying to access (it's likely that 10 and 11 are offsets from a pointer we expect to be set to a valid value but which is instead pointing to 0)
• ip - instruction pointer, ie. where the code which is trying to do this lives
• sp - stack pointer
• error - An error code for page faults; see below for what this means on x86 (link).

/*
 * Page fault error code bits:
 *
 *   bit 0 ==    0: no page found       1: protection fault
 *   bit 1 ==    0: read access         1: write access
 *   bit 2 ==    0: kernel-mode access  1: user-mode access
 *   bit 3 ==                           1: use of reserved bit detected
 *   bit 4 ==                           1: fault was an instruction fetch
 *   bit 5 ==                           1: protection keys block access
 *   bit 15 ==                          1: SGX MMU page-fault
 */