Get the output of a program in a file using QEmu
Reng Zeng
alan at fiucssa.org
Wed Jun 25 16:58:33 UTC 2008
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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