Get the output of a program in a file using QEmu
Reng Zeng
alan at fiucssa.org
Wed Jun 25 17:03:33 UTC 2008
I have my Makefile attached.
2008/6/25 Reng Zeng <alan at fiucssa.org>:
> 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
>
> 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?
>
>
> Thanks again,
> Alan
>
> 2008/6/25 Joel Sherrill <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>>:
>>>
>>>
>>> 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>> 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>> 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>
>>> >>>> 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>
>>> >> 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>
>>> 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
>>
>>
>>
>
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