How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

[NewHaka@hotmail]

 hi,all
 
 (gdb 5.0 sparc solaris 8)
 
 I have a library link by sun cc,this library is complied and link
 with flag -g.
 
 I try to find out the prototype of functions in this library,gdb output:
(gdb) p GetDatVersion    
 $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
(gdb) p GetDatVersion
type = int ()
 
 Does the library must complied by gcc?
 
 
 Thanks.
 
 regards
 haka
 

Re: How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

[Joel Brobecker]

>  (gdb 5.0 sparc solaris 8)
>  
>  I have a library link by sun cc,this library is complied and link
>  with flag -g.
>  
>  I try to find out the prototype of functions in this library,gdb output:
> (gdb) p GetDatVersion    
>  $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
> (gdb) p GetDatVersion
> type = int ()
>  
>  Does the library must complied by gcc?

I don't have a Sun CC license handy to verify this, but I remember that
Sun decided to put the debugging informatin outside of the object files.
IIRC, the magical switch is -xs (try compiling with '-g -xs'), otherwise
it should be in the cc manpage.

-- 
Joel

Re: How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

[Don Howard]

On Fri, 21 Jun 2002, NewHaka@hotmail wrote:

>  hi,all
>  
>  (gdb 5.0 sparc solaris 8)
>  
>  I have a library link by sun cc,this library is complied and link
>  with flag -g.
>  
>  I try to find out the prototype of functions in this library,gdb output:
> (gdb) p GetDatVersion    
>  $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
> (gdb) p GetDatVersion
> type = int ()
>  
>  Does the library must complied by gcc?
>  

'p <function>' or 'print <function>' tells you only the returned type.  
Try 'ptype <function>'.

-- 
dhoward@redhat.com
gdb engineering

Re: How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

[Don Howard]

On Fri, 21 Jun 2002, Don Howard wrote:

> On Fri, 21 Jun 2002, NewHaka@hotmail wrote:
> 
> >  hi,all
> >  
> >  (gdb 5.0 sparc solaris 8)
> >  
> >  I have a library link by sun cc,this library is complied and link
> >  with flag -g.
> >  
> >  I try to find out the prototype of functions in this library,gdb output:
> > (gdb) p GetDatVersion    
> >  $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
> > (gdb) p GetDatVersion
> > type = int ()
> >  
> >  Does the library must complied by gcc?
> >  
> 
> 'p <function>' or 'print <function>' tells you only the returned type.  
> Try 'ptype <function>'.

No.  I'm quite wrong here.  Both commands should give you full prototype 
info when applied to a function.  

Sorry for the confusion.


-- 
dhoward@redhat.com
gdb engineering

Re: How can I get the C function prototype from a SO(link by cc) on solaris using gdb?

[Keith Seitz]

On Fri, 21 Jun 2002, NewHaka@hotmail.com wrote:

>  I try to find out the prototype of functions in this library,gdb output:
> (gdb) p GetDatVersion
>  $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
                         ^^^^^^^^^^^^^

>  Does the library must complied by gcc?

No, but it must contain debug info that gdb can read...

Keith

Hi,Thank you for your help! Re: How can I get the C function protot....

[NewHaka@hotmail]

hi

Thank you for your help.

regards
haka

----- Original Message ----- 
From: "Keith Seitz" <keiths@redhat.com>
To: "NewHaka@hotmail" <newhaka@hotmail.com>
Cc: <gdb@sources.redhat.com>
Sent: Saturday, June 22, 2002 1:27 AM
Subject: Re: How can I get the C function prototype from a SO(link by cc) on solaris using gdb?


| On Fri, 21 Jun 2002, NewHaka@hotmail.com wrote:
| 
| >  I try to find out the prototype of functions in this library,gdb output:
| > (gdb) p GetDatVersion
| >  $1 = {<text variable, no debug info>} 0xff273374 <GetDatVersion>
|                          ^^^^^^^^^^^^^
| 
| >  Does the library must complied by gcc?
| 
| No, but it must contain debug info that gdb can read...
| 
| Keith
|