I guess ideally, I'd want to find out *which* definition of do_gettimeofday() is being used for the function call I'm looking at. Maybe cscope would help with that.
I tried
make tags
and then tried to look up do_gettimeofday() again, and I got directed to include/linux/time.h, which has the function prototype, which is helpful. It would still be even nicer to see the function body, perhaps another tool could help with that.
Thanks a lot!
-Tony
On Tue, Jan 19, 2010 at 7:34 PM, Greg KH <greg@xxxxxxxxx> wrote:
That is the right place for it :)On Tue, Jan 19, 2010 at 07:13:59PM -0800, Tony Miller wrote:
> Is it possible to browse the kernel source with ctags? I used
> exuberant-ctags to generate a tags file for my kernel sources, but it
> doesn't really work as you expect. If you try to jump to the definition of a
> function it will often not jump to the right location, for example I tried
> to jump to the definition of do_gettimeofday() and i ended up in
> arch/alpha/kernel/time.c.
The issue is that you are searching all of the different architectures,
how is ctags supposed to know you don't want the alpha definition, but
really the ia64 definition of the function?
You should try to trim the files you are using, the kernel has a build
option for this:
make tags
or if you use cscope:
make cscope
Hope this helps,
greg k-h
