Re: capture gdb output

Re: capture gdb output

[Nicolas.Thery]

> I need to be able to capture all the output from my gdb session into some
> type of log file.  It seems like this is a feature that would definitely
> exist, but I have been searching the sources and documentation for any
> mention of this capability with no luck.

Isn't sufficient to use  "gdb ... 2>&1 | tee log.txt" ?

(I don't have a unix machine handy and so can't test it).



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RE: capture gdb output

[Michael S. Miles]

Nicolas,

> > I need to be able to capture all the output from my gdb session
> into some
> > type of log file.  It seems like this is a feature that would definitely
> > exist, but I have been searching the sources and documentation for any
> > mention of this capability with no luck.
>

> Isn't sufficient to use  "gdb ... 2>&1 | tee log.txt" ?

I just tried this and it works great!  My colleagues and I thank you so
much!

I would still be interested in whether there is a function in gdb to open or
close a log file during a session?

thanks,
michael miles

Re: capture gdb output

[Andrew Cagney]

"Michael S. Miles" wrote:
> 
> Nicolas,
> 
> > > I need to be able to capture all the output from my gdb session
> > into some
> > > type of log file.  It seems like this is a feature that would definitely
> > > exist, but I have been searching the sources and documentation for any
> > > mention of this capability with no luck.
> >
> 
> > Isn't sufficient to use  "gdb ... 2>&1 | tee log.txt" ?
> 
> I just tried this and it works great!  My colleagues and I thank you so
> much!
> 
> I would still be interested in whether there is a function in gdb to open or
> close a log file during a session?

It is certainly listed in the TODO file:

--

Add a transcript mechanism to GDB.

Such a mechanism might log all gdb input and output to a file in a
form that would allow it to be replayed.  It could involve ``gdb
--transcript=FILE'' or it could involve ``(gdb) transcript file''.

--

	Andrew

Re: capture gdb output

[Michael Meissner]

On Thu, Apr 19, 2001 at 08:54:04AM -0400, Michael S. Miles wrote:
> I need to be able to capture all the output from my gdb session into some
> type of log file.  It seems like this is a feature that would definitely
> exist, but I have been searching the sources and documentation for any
> mention of this capability with no luck.
> 
> Does anyone know if gdb has this functionality and if so, how to use it?
> 
> If it helps, I am using the 03/20/01 snapshot of GDB on a Linux-i386 system.
> I am also using it as a remote Linux kernel debugger although I don't
> believe that is relevant.

Besides using tee, you could run gdb within an emacs shell session (or use
emacs' gdb mode) and copy the buffer to a file, or use the 'script' command
that many Unixen provide (output is in the 'typescript' file).  On older
systems, xterm might have a logging option (which was disabled due to security
concerns).

-- 
Michael Meissner, Red Hat, Inc.  (GCC group)
PMB 198, 174 Littleton Road #3, Westford, Massachusetts 01886, USA
Work:	  meissner@redhat.com		phone: +1 978-486-9304
Non-work: meissner@spectacle-pond.org	fax:   +1 978-692-4482

capture gdb output

[Michael S. Miles]

I need to be able to capture all the output from my gdb session into some
type of log file.  It seems like this is a feature that would definitely
exist, but I have been searching the sources and documentation for any
mention of this capability with no luck.

Does anyone know if gdb has this functionality and if so, how to use it?

If it helps, I am using the 03/20/01 snapshot of GDB on a Linux-i386 system.
I am also using it as a remote Linux kernel debugger although I don't
believe that is relevant.

many thanks,
Michael Miles