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[2]Core Dump调试应用程序
阅读量:295 次
发布时间:2019-03-01

本文共 368 字,大约阅读时间需要 1 分钟。

[1]Core Dump简介

Core Dump又叫核心转存。当程序在运行过程中发生异常, 这时Linux系统可以把程序出错时的内存内容存储在一个core文件中, 这种过程叫Core Dump。

Core Dump主要用来对付什么样的错误呢?Segment fault(段错误)。

以下情况会存在段错误:

1. 数组访问越界
2. 访问空指针
3. 栈溢出
4. 修改只读内存

[2]开启关闭Core Dump功能

打开:ulimit -c unlimited关闭:ulimit -c 0

[3]Core Dump使用

发生core dump之后, 可以使用gdb进行查看core文件的内容, 以定位程序出错的位置。

用法:gdb 程序名 core文件名例: gdb ./test core.12525

来自国嵌【2014】应用程序开发

转载地址:http://bjwl.baihongyu.com/

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