如何以编程方式在C/C ++中引起核心转储 [英] How to programmatically cause a core dump in C/C++

问题描述

我想在我的C ++应用程序的特定位置强制进行核心转储.

I would like to force a core dump at a specific location in my C++ application.

我知道我可以通过以下方式做到这一点:

I know I can do it by doing something like:

int * crash = NULL;
*crash = 1;

但是我想知道是否有一种更清洁的方法?

But I would like to know if there is a cleaner way?

我正在使用Linux.

I am using Linux by the way.

推荐答案

提高信号编号6(在Linux中为SIGABRT)是实现此目的的一种方法(尽管请注意，不需要SIGABRT 在所有POSIX实现中都为6，因此，如果这不是quick'n'dirty调试代码，则可能需要使用SIGABRT值本身.

Raising of signal number 6 (SIGABRT in Linux) is one way to do it (though keep in mind that SIGABRT is not required to be 6 in all POSIX implementations so you may want to use the SIGABRT value itself if this is anything other than quick'n'dirty debug code).

#include <signal.h>
: : :
raise (SIGABRT);

调用abort()也会导致核心转储，您甚至可以执行此操作而无需通过仅在子级中调用fork()后跟abort()来终止进程-请参见此答案以了解详情.

Calling abort() will also cause a core dump, and you can even do this without terminating your process by calling fork() followed by abort() in the child only - see this answer for details.

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