RE: [Ltib] RE: Reg ltib

[Stuart Hughes]

Hi Neha,

You don't run gdb on the target, you run:

gdbsever :1234 <userspace_prog_to_debug>

On the target you run:

bin/gdb rpm/BUILD/<package>/path_to_prog_to_debug

and when in the debugger:

gdb> target remote <targetip>:1234


This is from memory and may not be exactly right.  Also note that you
can wrap the cross gdb with ddd (for example: ddd --debugger
bin/gdb ...)

NOTE: this is only useful for userspace.

Regards, Stuart

On Tue, 2008-07-08 at 14:37 +0530, Makhija, Neha (IE10) wrote:
> Hi stuart
> 
> When I am running gdb on the target board with command
> ./gdb application_name
> 
> I am getting following error:
> ./gdb: 1: Syntax error: "(" unexpected
> 
> Actually sumthing like this should come:
> 
> Copyright 2002 Free Software Foundation, Inc.
> gdb is free software, covered by the GNU General Public License, and
> you are welcome to change it and/or distribute copies of it under
> certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for gdb. Type "show warranty" for
> details.
> 
> Instead it is throwing an error. What could be the reason for this?
> 
> Regards,
> Neha
> 
> 
> 
> -----Original Message-----
> From: Stuart Hughes [mailto:address@hidden 
> Sent: Tuesday, July 08, 2008 1:25 PM
> To: Makhija, Neha (IE10)
> Cc: Vijay Nikam; address@hidden; address@hidden
> Subject: RE: [Ltib] RE: Reg ltib
> 
> Hi Neha,
> 
> It looks like you have nothing selected within gdb to build.  Run:
> 
> ./ltib -m config
> 
> and make sure you have these selected:
> 
>           [*] gdb
>           [ ]   gdb to run natively on the target 
>           [*]   cross gdb (runs on build machine)
>           [*]   gdbserver to run natively on the target
> 
> Regards, Stuart
> 
> On Tue, 2008-07-08 at 12:16 +0530, Makhija, Neha (IE10) wrote:
> > Hi Vijay
> > 
> > I manually downloaded the files from the site and further gave a
> command
> > "./ltib -p gdb"
> > 
> > Now it has started compiling but I am getting the below error:
> > 
> > + cd gdb-6.0
> > + '[' -z y ']'
> > + rm -rf /home/bna3/Neha/ltib/tmp/gdb
> > + '[' -n '' ']'
> > + '[' -n '' ']'
> > + /opt/freescale/ltib/usr/lib/rpm/brp-compress
> > /opt/freescale/ltib/usr/lib/rpm/brp-compress: line 8: cd:
> > /home/bna3/Neha/ltib/tmp/gdb: No such file or directory
> > + /opt/freescale/ltib/usr/lib/rpm/brp-strip
> > find: /home/bna3/Neha/ltib/tmp/gdb: No such file or directory
> > + /opt/freescale/ltib/usr/lib/rpm/brp-strip-comment-note
> > find: /home/bna3/Neha/ltib/tmp/gdb: No such file or directory
> > Processing files: gdb-6.0-1
> > error: File not found by glob:
> > /home/bna3/Neha/ltib/tmp/gdb/opt/freescale/rootfs/m68k/*
> > 
> > 
> > RPM build errors:
> >     File not found by glob:
> > /home/bna3/Neha/ltib/tmp/gdb/opt/freescale/rootfs/m68k/*
> > Failed building gdb
> > Died at ./ltib line 351.
> > 
> > 
> > I googled on net and found that usually the name of the file is the
> > reason for this error. But here it is not giving a file name.
> > 
> > Can you suggest me the reason for this error?
> > 
> > Regards,
> > Neha Makhija
> > -----Original Message-----
> > From: Vijay Nikam [mailto:address@hidden 
> > Sent: Tuesday, July 08, 2008 11:37 AM
> > To: Makhija, Neha (IE10)
> > Cc: Stuart Hughes; address@hidden; address@hidden
> > Subject: Re: [Ltib] RE: Reg ltib
> > 
> > Hi,
> > 
> > The file gdb-6.0.tar.gz.md5 is available at gpp
> > (http://www.bitshrine.org/gpp/) check it ...
> > 
> > I think the file is not getting download from gpp because of your
> > netwrok connection ... which is going through proxy server ... I mean
> > even if you give correct proxy address, still it will not be able to
> > download ... and thats why you need to have direct internet connection
> > ... then only wget or yum works ...
> > 
> > Anyways the second option you have is to modify the .ltibrc, disable
> > gpp and ppp ... only lpp should be enabled ... then download the
> > gdb-6.0.tar.gz.md5 and gdb-6.0.tar.gz from
> > http://www.bitshrine.org/gpp and save it at the loaction where the
> > file should be ... and then execute ./ltib -p <package name> in your
> > case it is gdb ...
> > 
> > I think this will do for your problem ...
> > 
> > Kind Regards,
> > Vijay Nikam
> > 
> > On 7/8/08, Makhija, Neha (IE10) <address@hidden> wrote:
> > > Hi Stuart/Vijay
> > >
> > > Thanks for the reply!!
> > > I tried whatever was mentioned by you. Looks like it is not the
> > problem
> > > with the proxy address mentioned in the .ltibrc file as after
> running
> > > the command "./ltib -p gdb", I got the following error
> > >
> > > Processing: gdb
> > > =================
> > > Getting gdb-6.0.tar.gz.md5 from the Private Package Pool
> > > /home/bna3/Neha/ltib
> > >
> > >>> As it is clearly visible that it was able to >>extract
> > > gdb-6.0.tar.gz.md5 file from Global >>Package Pool
> > >
> > > Getting gdb-6.0.tar.gz.md5 from the Global Package Pool
> > > /home/bna3/Neha/ltib
> > > Getting gdb-6.0.tar.gz from the Private Package Pool
> > > /home/bna3/Neha/ltib
> > >
> > >>> Here it is giving error.
> > >
> > > Getting gdb-6.0.tar.gz from the Global Package Pool
> > > /home/bna3/Neha/ltib
> > > Can't get: gdb-6.0.tar.gz at ./ltib line 515.
> > > Died at ./ltib line 518.
> > >
> > > I think the file doesn't exist in the Global Package Pool.
> > >
> > > Please correct me if I am wrong!!
> > >
> > > Regards,
> > > Neha
> > >
> > >
> > > -----Original Message-----
> > > From: Stuart Hughes [mailto:address@hidden
> > > Sent: Monday, July 07, 2008 5:49 PM
> > > To: Makhija, Neha (IE10)
> > > Cc: address@hidden
> > > Subject: RE: Reg ltib
> > >
> > > Hi Neha,
> > >
> > > On Mon, 2008-07-07 at 16:56 +0530, Makhija, Neha (IE10) wrote:
> > >> Hi Stuart
> > >>
> > >> Thanks for the help!!
> > >> I am the member of the ltib group. I have registered through Yahoo
> > id.
> > > During office hours can't surf yahoo, so can't mail you from that
> id.
> > >>
> > >
> > > Okay, I'll let those messages go through from that email to save you
> > > getting everything twice.
> > >
> > >
> > >> I tried whatever you suggested. I am getting the following error:
> > >>
> > >> Can't get: gdb-6.0.tar.gz at ./ltib line 515.
> > >>
> > >
> > > You need to have Internet access, ltib will then be able to download
> > > this.  If you are inside a corporate network, then you'll need to
> > enter
> > > the proxy setting into the .ltibrc file.
> > >
> > >>
> > >> Also what is " uclinux-dev" ??
> > >>
> > >
> > > This is a mailing list for MMUless chips:
> > > http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
> > >
> > >
> > >> Thanks !!
> > >>
> > >> Best Regards,
> > >> Neha
> > >
> > >
> > > Regards, Stuart
> > >
> > >
> > >> -----Original Message-----
> > >> From: Stuart Hughes [mailto:address@hidden
> > >> Sent: Monday, July 07, 2008 4:45 PM
> > >> To: Makhija, Neha (IE10)
> > >> Cc: address@hidden
> > >> Subject: RE: Reg ltib
> > >>
> > >> Hi Neha,
> > >>
> > >> If the problem is in the kernel then gdb won't help without kgdb on
> > > the
> > >> target (as you noted).
> > >>
> > >> If the gdb executable is dying with SEGV though you can re-build
> it.
> > >>
> > >> $ ./ltib -m config
> > >>
> > >> and select gdb in the package list (cross/gdbserver).  Then run:
> > >>
> > >> $ ./ltib -p gdb
> > >>
> > >> This will re-generate the cross gdb executable and place it under
> the
> > >> bin directory.  It that doesn't work, you'll need to contact
> > Freescale
> > >> support for help.
> > >>
> > >> To actually debug the kernel, you'll need help from a kernel
> expert.
> > > It
> > >> it's an MMUless platform, try uclinux-dev.  Otherwise it may be
> worth
> > >> contacting Freescale support.
> > >>
> > >> Regards, Stuart
> > >>
> > >> On Mon, 2008-07-07 at 15:59 +0530, Makhija, Neha (IE10) wrote:
> > >> > Hi Stuart
> > >> >
> > >> > I need your help!!
> > >> > I have one embedded board with coldfire processor.
> > >> >  Because of some reason in the application, the drivers (Written
> by
> > > our
> > >> >  team) are getting closed (whatever are opened in the
> application).
> > > To
> > >> >  debug the reason for kill of the application by the kernel, I
> used
> > > the
> > >> >  gdbserver and gdbclient generated by the ltib. It showed
> > > "SEGMENTATION
> > >> >  KILL" and I am not able to debug further. I tried the gdb binary
> > > image
> > >> >  available in the ltib folder but it didn't work. Can you suggest
> > me
> > > a
> > >> >  way to debug the application through ltib ?? Secondly, To debug
> > the
> > >> >  Kernel drivers, one can use kdb and kgdb. But I am not able to
> > find
> > >> >  the two in the ltib folder. Is there any other way to debug the
> > >> >  drivers through ltib?
> > >> >
> > >> > Thanks in advance!!
> > >> > Neha
> > >> >
> > >> > -----Original Message-----
> > >> > From: Stuart Hughes [mailto:address@hidden
> > >> > Sent: Wednesday, November 28, 2007 3:56 PM
> > >> > To: Makhija, Neha (IE10)
> > >> > Cc: address@hidden
> > >> > Subject: Re: Reg ltib
> > >> >
> > >> > Hi Neha,
> > >> >
> > >> > I'm not sure about the OOB data question, maybe others on this
> list
> > > or
> > >> > even on the MTD mailing list know.
> > >> >
> > >> > As far as your other options go, there are techniques for
> combining
> > > the
> > >> > kernel and rootfs into a single image (it's a general technique
> > that
> > > you
> > >> > can find on various mailing list).  However in my opinion for
> most
> > > cases
> > >> > you get more flexibility by having the kernel and rootfs in
> > separate
> > >> > Flash partitions.
> > >> >
> > >> > Regards, Stuart
> > >> >
> > >> > On Wed, 2007-11-28 at 09:25 +0530, Makhija, Neha (IE10) wrote:
> > >> > > Hi Stuart
> > >> > >
> > >> > >
> > >> > >
> > >> > > I am the member of the ltib mailing list. I have one doubt. I
> am
> > >> > > having one kernel image which will take the file system through
> > > NFS
> > >> > > and will download it on the board's NAND flash. So I am having
> > two
> > >> > > images one is kernel image and second one is root file system
> > > image
> > >> > > which is .jffs2. Now the requirement is that only one single
> > image
> > >> > > should be there to program the empty flash, ie I need to
> > > concatenate
> > >> > > the two images. We need this because the final burning of the
> > NAND
> > >> > > flash will be done by the 3rd party vendor, so they want only
> > > image
> > >> > > for the first time. To burn NAND flash, peedi programmer will
> be
> > > used.
> > >> > > Peedi programmer takes care of the bad blocks in the NAND
> flash.
> > > What
> > >> > > I want to know is, If I will concatenate the two images with
> the
> > > help
> > >> > > of batch command will it work? I mean will it update the OOB
> > table
> > > of
> > >> > > the bad block as done by linux kernel while loading root file
> > > system
> > >> > > image (JFFS2 image)?
> > >> > >
> > >> > >
> > >> > >
> > >> > > Basically I am not able to check where exactly the OOB table is
> > >> > > getting updated for the root file system? Or Is there a way to
> > >> > > generate the kernel and Root file system image altogether?
> > >> > >
> > >> > >
> > >> > >
> > >> > > Thanks in advance.
> > >> > >
> > >> > >
> > >> > >
> > >> > > Regards,
> > >> > >
> > >> > > Neha
> > >> > >
> > >> > >
> > >> > >
> > >> > >
> > >>
> > >
> > >
>