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However cscope additionally adds the ability to jump to any of the places where a function is called as well. So as far as jumping around a code base is concerned, ctags will only ever lead you towards the place where the function is implemented, whereas cscope can show you where a function is called too.
ctags enables two features: allowing you to jump from function calls to their definitions, and omni completion. The first means that when you are over a call to a method, hitting g] or CTRL-] will jump to the place where that method is defined or implemented.
What to do when the C symbol does not work in cscope?
If you find that the C symbol and function searches do not find what you are looking for, you can fall back to the text search options at the bottom of the list. Select the type of search that you’d like to perform, type in your search term and hit Enter.
Where do I find the source code for cscope?
Note that those are backticks, not single-quotes, in that command. Put this command in your .bashrc file if you’d like. cd to the top-level of your project directory and then use a find command to gather up all of the source code files in your project.
The first script takes a list of files, and indexes their variables creating the actual ctags and cscope DBs. The second script generates that list of files. The second script is important when you have a big project like the kernel.
What’s the difference between CSCOPE and ctags in Vim?
Vim understands the index and provides you with an interface for jumping back and forth between the tags. The differences between the two are small, but important to distinguish. With ctags, you can use autocomplete (aka omnicomplete) for function and variable names as you type, something cscope doesn’t give you.
Why do I get multiple definitions in cscope?
When searching for “global definitions,” sometimes Cscope will return multiple definitions, which is annoying. It appears that many forward declarations (i.e. function prototypes or declarations of structures that declare it but don’t define it), and not just definitions, appear in Cscope’s results.
Which is better, cscope or ETags in Linux?
In fact, I started using cscope and etags when I started working with the Linux Kernel / Xen. LXR is not great, because you have to click, go over the network etc., whereas you can build the cscope and tags databases on your kernel code and do not have to go over the network (unlike lxr). Suggest use global gtags.