如何从核心转储中获取环境变量 [英] How to get environment variable from a core dump

问题描述

在UNIX环境(linux/solaris/AIX)中，我的应用程序崩溃了.请帮助我从核心转储中获取环境变量

In UNIX environment(linux/solaris/AIX) my application crashing. Please help to me get environment variable from the core dump

推荐答案

运行strings -a core应该会产生一个看起来很明显的字符串块，例如HOME=...，HOSTNAME=...等.

Running strings -a core should produce an obvious-looking block of strings like HOME=..., HOSTNAME=..., etc.

您还可以通过查看main的第三个参数来检查初始环境，该参数是envp[] －以NULL终止的指向环境字符串的指针数组.

You can also examine initial environment by looking at the 3rd argument to main, which is a envp[] -- a NULL-terminated array of pointers to the environment strings.

最后，当前环境块由__environ或类似变量指向.

Finally, current environment block is pointed at by __environ or similar variable.

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