修复 C++ 中的分段错误

2021-12-14 00:00:00 debugging segmentation-fault c++

我正在为 Windows 和 Unix 编写一个跨平台的 C++ 程序.在 Window 端,代码将编译和执行没有问题.在 Unix 端,它会编译,但是当我尝试运行它时,出现分段错误.我最初的预感是指针有问题.

I am writing a cross-platform C++ program for Windows and Unix. On the Window side, the code will compile and execute no problem. On the Unix side, it will compile however when I try to run it, I get a segmentation fault. My initial hunch is that there is a problem with pointers.

找到和修复分段错误的好方法是什么?

推荐答案

  1. 使用 -g 编译您的应用程序,然后您将在二进制文件中获得调试符号.

  1. Compile your application with -g, then you'll have debug symbols in the binary file.

使用 gdb 打开 gdb 控制台.

Use gdb to open the gdb console.

使用 file 并将您的应用程序的二进制文件传递给控制台.

Use file and pass it your application's binary file in the console.

使用 run 并传入您的应用程序启动所需的任何参数.

Use run and pass in any arguments your application needs to start.

做一些导致分段错误的事情.

gdb 控制台中键入 bt 以获取分段错误的堆栈跟踪.

Type bt in the gdb console to get a stack trace of the Segmentation Fault.

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