Avoid declarations in cscope

cyker · 01-18-2011, 02:42 AM

I use vim+cscope. Since a struct or a function can be declared many times, when I want to find how it is defined, I'm troubled by a long list of declarations.

I use 'cscope f g [def]', and I don't know why declarations are listed.

So how can I configure cscope so that declarations won't be listed? Thanks.

kbp · 01-23-2011, 08:19 PM

Can you give us some example output ?

cyker · 01-24-2011, 05:13 AM

Quote:

Originally Posted by kbp

Can you give us some example output ?

I use cs f g task_struct to find out how it's defined, while the result is as follows (using cscope command line):

0 mmc_queue.h 5 struct task_struct;
1 cpu_buffer.h 18 struct task_struct;
2 udfdecl.h 42 struct task_struct;
3 current.h 6 struct task_struct;
4 processor.h 492 struct task_struct;
5 ptrace.h 58 struct task_struct;
6 system.h 12 struct task_struct;
7 file.h 79 struct task_struct;
8 profile.h 36 struct task_struct;
9 sched.h 528 struct task_struct {
a avc.h 32 struct task_struct;

But I just want Result 9.

So I think it'd be better if you can control macros/declarations/definitions for variables/functions separately. Is there any way to achieve this goal?

kbp · 01-24-2011, 04:32 PM

Does it work correctly interactively ?

Code:

...
Find all function definitions: task_struct
...

cyker · 01-24-2011, 06:52 PM

Quote:

Originally Posted by kbp

Does it work correctly interactively ?

Code:

...
Find all function definitions: task_struct
...

I'm not quite clear what you mean by that. I don't see the "Find all function definitions:" option. I tried both command line cscope and cscope in Vim. Neither works...

kbp · 01-25-2011, 12:13 AM

Looks like we're on different versions .. I'm on Fedora 13 with cscope version 15.7a, what's yours ?

cyker · 01-25-2011, 04:56 AM

Quote:

Originally Posted by kbp

Looks like we're on different versions .. I'm on Fedora 13 with cscope version 15.7a, what's yours ?

Arch with version 15.7a. Available options are:

Find this C symbol:
Find this global definition:
Find functions called by this function:
Find functions calling this function:
Find this text string:
Change this text string:
Find this egrep pattern:
Find this file:
Find files #including this file:

kbp · 01-25-2011, 06:56 AM

Strange... my options:

Code:

Find this C symbol:
Find this global definition:
Find functions called by this function:
Find functions calling this function:
Find this text string:
Change this text string:
Find this egrep pattern:
Find this file:
Find files #including this file:
Find all function definitions:
Find all symbol assignments:

Try removing the cscope.out file, I think '-u' will unconditionally rebuild it as well

cyker · 01-26-2011, 09:02 AM

Quote:

Originally Posted by kbp

Strange... my options:

Code:

Find this C symbol:
Find this global definition:
Find functions called by this function:
Find functions calling this function:
Find this text string:
Change this text string:
Find this egrep pattern:
Find this file:
Find files #including this file:
Find all function definitions:
Find all symbol assignments:

Try removing the cscope.out file, I think '-u' will unconditionally rebuild it as well

But will it depend on versions? I just want to control macros/declarations/definitions for variables/functions separately. Does cscope implement this, or can you make it done in your version?

kbp · 01-26-2011, 03:59 PM

It does work but according to the man page it can get confused, please read the Notices section for more details