我怎样才能找出库是家庭对一个给定的对象？ [英] How can I find out which library is home to a given object?

问题描述

我在Fortran和C上运行Irix的6.5 SGI编程，但是这应该是适用于所有类Unix系统。我如何找到我需要的时候，我得到一个未解决的文本符号链接错误链接到我的计划，库？下面就是我从链接器看到的例子：

I'm programming in FORTRAN and C on an SGI running Irix 6.5, but this should be applicable to all Unix-like systems. How do I find which library I need to link to my program when I get an "unresolved text symbol" link error? Here's an example of what I'm seeing from the linker:

ld32: ERROR  33 Unresolved text symbol "ortho2_" -- first referenced by ./libfoo.a

我只需要知道需要哪些库，或者是有一些工具或命令，可以帮助我想出解决办法？

Do I just have to know which libraries are required, or is there some tool or command that can help me figure this out?

推荐答案

您可以使用纳米命令从一个共享库列出动态符号：

You can use the nm command to list the dynamic symbols from a shared library:

nm -D /lib/libc.so.6

然后的grep 的符号，你正在寻找。省略静态库的-D。你可以使用这个在一个循环或xargs的扫描多个图书馆。

and then grep for the symbol you are looking for. Omit the -D for static libraries. You can use this in a loop or with xargs to scan multiple libraries.

我通常只使用谷歌（假设符号是从公开可用的库）。

I usually just use google (assuming the symbol is from a publicly available library).

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