Get the output of a program in a file using QEmu
Joel Sherrill
joel.sherrill at OARcorp.com
Wed Jun 25 17:21:28 UTC 2008
Reng Zeng wrote:
> It does not work as well with '-serial stdio',
>
> btw, I also 'make clean' 'make' my program. And, when I make , it
> seems do not have any "USE_COM1_AS_CONSOLE" in it, is that the problem?
>
You have to clean RTEMS, reconfigure with that added option and remake
your application.
Your application has no idea where the console goes.
> i386-rtems4.9-gcc --pipe -B/opt/rtems-4.9/i386-rtems4.9/pc586/lib/
> -specs bsp_specs -qrtems -g -Wall -O2 -g -g -mtune=pentium
> -c -o o-optimize/init.o init.c
>
That looks pretty reasonable.
> Thanks,
> Alan
>
> 2008/6/25 Joel Sherrill <joel.sherrill at oarcorp.com
> <mailto:joel.sherrill at oarcorp.com>>:
>
> Reng Zeng wrote:
>
> Hi Joel,
>
> Thanks for your tips, I tried it as steps below, it still does
> not work.
>
> 1. ../rtems/configure USE_COM1_AS_CONSOLE=1
> BSP_PRESS_KEY_FOR_RESET=0 --target=i386-rtems4.9
> --enable-rtemsbsp=pc586 --disable-posix --disable-itron
> --enable-tests=samples
> 2. make clean
> 3. make
> 4. make install
>
> Then I run it my qemu:
>
> /usr/bin/qemu -monitor null -nographic -serial file:qemu.log
> -boot a -m 128 -fda '/home/zengreng/rtems-boot.img' -hda
> 'fat:/home/zengreng/workspace/rtems_tools/src/generated/'
> --no-reboot
>
> Try -serial stdio and see if that works. Maybe file: doesn't
> work. I have never used it.
>
> The program to run is managed by Makefile I drafted, not
> automake, I attached it to see whether that is the cause
> things do not work, shall I add something like
> "USE_COM1_AS_CONSOLE" into it as well?
>
> There was no program attached but any of the samples should just work
> that way.
>
>
> Thanks again,
> Alan
>
> 2008/6/25 Joel Sherrill <joel.sherrill at oarcorp.com
> <mailto:joel.sherrill at oarcorp.com>
> <mailto:joel.sherrill at oarcorp.com
> <mailto:joel.sherrill at oarcorp.com>>>:
>
>
> Reng Zeng wrote:
>
> Hello,
>
> It do NOT work for me, I add "#define
> USE_COM1_AS_CONSOLE 1 "
> into my init.c, and run qemu by
> qemu -nographic -serial file:output.txt -boot a -m 128
> -fda myimage.img -hda fat:.
>
> No. That's not going to work. You have to configure with that
> set on the configure
> comment line.
>
> ..../configure ... USE_COM1_AS_CONSOLE=1
> BSP_PRESS_KEY_FOR_RESET=0
>
> The BSP_PRESS_KEY_FOR_RESET=0 configures the BSP to not
> wait for a key
> press before resetting. Just add --no-reboot to your qemu
> command line and
> it will "power down" which is exiting. :-D
>
> I did not get anything from output.txt. It run well in
> graphic
> mode, but I want the output from the program.
>
> I would appreciate if you could shed me some light on
> my mind :)
>
> This is a fragement from the shell script I use.
>
> QEMU="/usr/local/bin/qemu -cpu 486"
>
> runit()
> {
> ARGS="-m 8 -boot a -fda ${fd0Image} -hda fat:${hd0Dir} \
> -monitor null -nographic -serial stdio --no-reboot"
>
> ${QEMU} ${ARGS} >${logfile} 2>&1 &
> }
>
>
> Thanks,
> Alan
>
> 2008/3/21 Jean-Claude Grange <lebauce at free.fr
> <mailto:lebauce at free.fr>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>
>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>>>>:
>
>
> Hello,
>
> Thank you all for answers. USE_COM1_AS_CONSOLE =1 worked
> just fine.
> I'm really interested in your patch, Joel. Are you
> going to
> commit it
> soon ? Or would you mind sending your patch to me so
> that I can
> test it.
>
> Thanks
> See you
>
>
> Le 17 mars 08 à 19:47, Joel Sherrill a écrit :
>
> > Jean-Claude Grange wrote:
> >> Hello,
> >>
> >> Thanks for your answer. I'll try that.
> >> But I wonder if it's possible to do it without
> modifying the
> >> program ?
> >>
> >>
> > Define USE_COM1_AS_CONSOLE =1 on the RTEMS configure
> > command line and the console will move to the
> serial port.
> > This is how I run RTEMS and GCC tests in an automated
> > fashion.
> >
> > I discovered another nice qemu option --no-reboot
> which
> > exits when the simulated PC does a reset. This
> means you
> > get a single run of the application and then it
> exits. I
> have
> > a pending patch in my tree to make the BSP reset on
> > application exit or exception without waiting for
> a human
> > to press a character. This sped up the gcc test runs
> > by a large factor since they have >50K tests.
> >
> > --joel
> >> José Marinho <zemanel at gmail.com
> <mailto:zemanel at gmail.com>
> <mailto:zemanel at gmail.com <mailto:zemanel at gmail.com>>
> <mailto:zemanel at gmail.com <mailto:zemanel at gmail.com>
>
> <mailto:zemanel at gmail.com <mailto:zemanel at gmail.com>>>>
> wrote:
> >>
> >>
> >>> you can allways create a file, format it to a
> specific
> fylesystem
> >>> and pass
> >>> it to qemu as an hard drive, and tell the rtems
> program
> to create
> >>> and write
> >>> in a file in that hard drive. and then you can mount
> that file
> >>> with loop
> >>> device and access it and get the output file. that's
> the approach
> >>> that I'de
> >>> take. Hope that's usefull to you
> >>>
> >>> José Marinho
> >>>
> >>> On 16/03/2008, Jean-Claude Grange
> <lebauce at free.fr <mailto:lebauce at free.fr>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>
> <mailto:lebauce at free.fr <mailto:lebauce at free.fr>>>> wrote:
> >>>
> >>>> Hello,
> >>>>
> >>>> I'm sorry if this is a stupid question but I've
> searched on the
> >>>> mailing
> >>>> list and
> >>>> didn't find an answer.
> >>>> I'm trying to get the output of a RTEMS program
> (for
> example the
> >>>> Hello
> >>>> from the
> >>>> samples testsuite) using QEmu, into a file. I'm
> using the
> >>>> command (on
> >>>> Linux) :
> >>>>
> >>>> qemu -nographic -serial file:output.txt -boot a
> -fda
> myimage.img
> >>>> -hda
> >>>> fat:.
> >>>>
> >>>> but I don't get anything in the 'output.txt'
> file. I
> also tried -
> >>>> serial
> >>>> /dev/ttyS* and with the -monitor stdio option but I
> still have
> >>>> nothing. I
> >>>> must
> >>>> be doing something wrong.
> >>>>
> >>>> I would really appreciate your help.
> >>>> Thank you
> >>>> _______________________________________________
> >>>> rtems-users mailing list
> >>>> rtems-users at rtems.com
> <mailto:rtems-users at rtems.com> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com>>
> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com>>>
>
>
> >>>> http://rtems.rtems.org/mailman/listinfo/rtems-users
> >>>>
> >>>>
> >>>
> >>> --
> >>> <img>
> http://www.deec.uc.pt/common/img/deezoom.gif </img>
> >>>
> >>>
> >>
> >>
> >> _______________________________________________
> >> rtems-users mailing list
> >> rtems-users at rtems.com
> <mailto:rtems-users at rtems.com> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com>>
> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com>>>
>
>
> >> http://rtems.rtems.org/mailman/listinfo/rtems-users
> >>
> >
> >
> > --
> > Joel Sherrill, Ph.D. Director of
> Research &
> Development
> > joel.sherrill at OARcorp.com On-Line Applications
> Research
> > Ask me about RTEMS: a free RTOS Huntsville AL 35805
> > Support Available (256) 722-9985
> >
> >
>
> _______________________________________________
> rtems-users mailing list
> rtems-users at rtems.com <mailto:rtems-users at rtems.com>
> <mailto:rtems-users at rtems.com <mailto:rtems-users at rtems.com>>
> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com> <mailto:rtems-users at rtems.com
> <mailto:rtems-users at rtems.com>>>
>
>
> http://rtems.rtems.org/mailman/listinfo/rtems-users
>
>
>
>
> -- Joel Sherrill, Ph.D. Director of Research
> & Development
> joel.sherrill at OARcorp.com On-Line Applications Research
> Ask me about RTEMS: a free RTOS Huntsville AL 35805
> Support Available (256) 722-9985
>
>
>
>
>
> --
> Joel Sherrill, Ph.D. Director of Research & Development
> joel.sherrill at OARcorp.com On-Line Applications Research
> Ask me about RTEMS: a free RTOS Huntsville AL 35805
> Support Available (256) 722-9985
>
>
>
--
Joel Sherrill, Ph.D. Director of Research & Development
joel.sherrill at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
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