Re: [Cscope-devel] cscope find the exact struct definition in linux kernel

[Hans-Bernhard B. <HBB...@t-...>]

Am 01.08.2019 um 05:14 schrieb 袁建鹏:

> : cs find g platform_device
> 
> But the result contains lots of other things. like:
> 
> variable named platform_device
> declaration of struct platform_device

These are perfectly valid results of the search you ran: "find global
definition".  If you find truly large numbers of the same identifier in
such a search, that might be an indication of the source code being in
bad shape.

> arguments whose type is struct platform device

This would not normally count as a valid result for this search.  But
here you're running into the known (and documented) limitation of the
cscope parser in case of function pointers, or generally any function
argument lists with more than the one pair of parentheses.  The primary
effect of that limitation is to blur the distinction between global and
local definitions, leading to spurious "global" definitions that are
actually local.

> Can I let cscope find only the exact definition of struct platform_device. 

In a nutshell: no.  That's not what cscope is meant to do.