This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] microblaze: microblaze.md: Use 'SI' instead of 'VOID' for operand 1 of 'call_value_intern'


On 10/29/14 23:58, Chen Gang wrote:
> On 10/27/14 9:42, Chen Gang wrote:
>> On 10/27/14 2:22, Michael Eager wrote:
>>>
>>> Microblaze-sim provides basic instruction set architecture and memory simulation.
>>> There is no operating system support.  (It's also quite old.  I'm not sure
>>> which version of the MB architecture it models, but it is not recent.)
>>>
>>> Microblaze-sim is not a full system simulator, like QEMU.  To be able to
>>> run a program which requires glibc, you need to be able to boot a full Linux
>>> image on the simulator, which microblaze-sim cannot do.  QEMU models an
>>> entire processor and can boot a Linux image.
>>>
> 
> At present, run upstream qemu 2.1.2 and upstream Linux kernel 3.17-rc7
> with simple ramfs successfully. Via modify ramfs, can run hello world
> program with static glibc (built by upstream mc_gcc), successfully.
> 

After copy the ramfs' "/lib" and "/usr/lib" to outside, build the hello
world program again with the dynamic glibc, then put it to ramfs. The
hello world program with dynamic glibc can run correctly inside qemu :-)

Next, I need focus on networking (I have found qemu related device, and
kernel related device, and I also know, it needs telnetd in busy box).
But sorry, it seems I can not finish within this month :-(

 - I wasted much time resources on choosing qemu or sim, next I should
   notice about it (do not waste time, again).

 - and another excuse is: I have to do it in my free time (within 2.5
   hours per day, in average). My current job is not related with it
   (at present, it is about Global Platform Java applet for iPhone OS).

Next month:

 - I should finish microblaze qemu test under DejaGNU, should finish
   within next month (2014-11-30).

 - I also shall start tile cross compiling for gcc/binutils, and use it
   to Linux kernel, and test it with qemu. I shall try to finish them
   within 2 months (finish before 2014-12-31).

 - At least, finish 1 patch for gcc, 1 patch for binutils, 1 patch for
   qemu/kvm/xen, 3 patches for kernel, within next month (2014-11-30).


Welcome any ideas, suggestions or completions.

Thanks.

>  - For ramfs:
> 
>    wget http://www.wiki.xilinx.com/file/view/microblaze_complete.cpio.gz/419243588/microblaze_complete.cpio.gz
> 
>  - Related qemu command:
> 
>    ./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \
>      -kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \
>      -no-reboot -append "console=ttyUL0,115200 doreboot" -nographic
> 
> Next, I shall try to let our gdb and DejaGNU work for it:
> 
>  - How to let qemu support network and rsh (ramfs need telnetd, kernel
>    may need related driver, and qemu related hardware need be tested).
> 
>  - Let gdb work for it, then config DejaGNU (need we test the program
>    with dynamic glib, it will be fail now for not match glibc version
>    in ramfs).
> 
>  - At last, run our test.
> 
> It seems, still many things need trying. Welcome any ideas, suggestions,
> and completions for it (especially for ramfs network and/or glibc, and
> DejaGNU configuration ...).
> 
> 
> Thanks.
> 
>>
>> OK, thank you very much, I shall rewind to qemu, and should try my best
>> to finish within within this month.
>>
>>
> 
> 
> Thanks
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]