RE: [Ltib] RE: Reg ltib

[Stuart Hughes]

Hi Neha,

You *cannot* copy bin/gdb to the target and run it.  This needs to be
run on the host.  You cannot copy libraries from the host to target and
expect them to be useful.

This method of debugging is host/target over ethernet.  

On the target you run: gdbserver :1234 <target_prog>
On the host you run: bin/gdb <target_prog_stored_on_host>

This procedure is not LTIB specific, you need to go and google gdb to
find out more about how this works.

Regards, Stuart

On Wed, 2008-07-09 at 17:41 +0530, Makhija, Neha (IE10) wrote:
> Hi stuart
> 
> I ran the following commands
> 
> $ rm -rf rpm/BUILD/gdb*
> $ ./ltib -m config         : select gdb
> $ ./ltib -p gdb
> 
> This generated the gdb exe in the rpm/BUILD/<gdb->/gdb/
> 
> Then I loaded the application on the target board and ran ./gdb. It gave
> libraries missing error. Manually I loaded the libraries from
> /ltib/rootfs/lib/ directory of the host machine into the target board
> /lib directory.
> 
> Now it is giving bus error:-(
> 
> Please suggest the reason and solution for this ?
> 
> 
> Regards,
> Neha
> -----Original Message-----
> From: Stuart Hughes [mailto:address@hidden 
> Sent: Wednesday, July 09, 2008 4:36 PM
> To: Makhija, Neha (IE10)
> Cc: Vijay Nikam; address@hidden; address@hidden
> Subject: RE: [Ltib] RE: Reg ltib
> 
> 
> Hi Neha,
> 
> Don't run in single package mode, gdb has dependencies.  To fix this:
> 
> $ rm -rf rpm/BUILD/gdb*
> $ ./ltib -m config         : select gdb
> $ ./ltib
> 
> If that doens't work, them you need to say which platform you're
> building for and which version of LTIB (e.g. iso image etc).
> 
> Regards, Stuart
> 
> On Wed, 2008-07-09 at 16:29 +0530, Makhija, Neha (IE10) wrote:
> > Hi Stuart/Vijay
> > 
> > With that also, I am not able to debug my code because the connection
> is
> > broken.
> > 
> > I tried to enable the native GDB so that the program which is debugged
> > is on the system where the debugger is running.
> > 
> > After configuring with ./ltib -m config and selecting the option as
> > -> package list
> >     -> gdb
> >             -> gdb to run natively on the target
> > Then running the command 
> > ./ltib -p gdb
> > 
> > I am getting following error:
> > 
> > creating cache ../config.cache
> > configure: error: can not find install-sh or install.sh in ./../..
> > ././../..
> > make: *** [configure-build-libiberty] Error 1
> > error: Bad exit status from /home/bna3/Neha/ltib/tmp/rpm-tmp.76893
> > (%build)
> > 
> > 
> > RPM build errors:
> >     Bad exit status from /home/bna3/Neha/ltib/tmp/rpm-tmp.76893
> (%build)
> > Failed building gdb
> > Died at ./ltib line 351.
> > 
> > Started: Wed Jul  9 23:56:44 2008
> > Ended:   Wed Jul  9 23:56:59 2008
> > Elapsed: 15 seconds
> > 
> > Build failures  : gdb
> > Abnormal exit   : yes
> > 
> > Exiting on error or interrupt
> > 
> > Any clue ??
> > 
> > Regards,
> > Neha
> > 
> > -----Original Message-----
> > From: Stuart Hughes [mailto:address@hidden 
> > Sent: Tuesday, July 08, 2008 2:56 PM
> > To: Makhija, Neha (IE10)
> > Cc: Vijay Nikam; address@hidden; address@hidden
> > Subject: RE: [Ltib] RE: Reg ltib
> > 
> > 
> > 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
> > > > >> > >
> > > > >> > >
> > > > >> > >
> > > > >> > >
> > > > >>
> > > > >
> > > > >
> > > 
> > 
>