rtems assembler

[Hesham Almatary]

On Thu, 30 Apr 2020 at 14:18, suyash singh <suyashsingh234 at gmail.com> wrote:

>
> I am using ubuntu 18.04 terminal
>
> Here's the python script I wrote to find all include files and run clang
> -fsanitize
>
> # run with python3 in terminal
>
> import subprocess
> import os
>
> relativedir="../bsps/sparc/erc32/btimer"
> directory=os.path.join(os.getcwd(),"../")
> file="btimer.c"
> root_dir="ubsan"
>
> arr=['clang','-target','sparc','-
>
target needs to be sparc-unknown-rtems5 to pick up the correct tools. Does
your clang support sparc backend? Can you try to compile and link some
simple C program with it?

fsanitize=undefined',"-I../../../../../../rtems/5/sparc-rtems5/erc32/lib/include","-I../../../../../../rtems/5/sparc-rtems5/include/"]
>
> for path, subdirs, files in os.walk(directory):
>         for subdir in subdirs:
>             if(subdir=="include"):
>                 includepath=os.path.join(path,subdir)
>                 idx=includepath.find("..")
>                 arr.append("-I../../../../"+includepath[idx+3:])
> arr.append(file)
> subprocess.run(arr,cwd=relativedir, stdout=subprocess.PIPE)
> #result=subprocess.run(['./a.out'],cwd=relativedir, stdout=subprocess.PIPE)
>
> On Thu, Apr 30, 2020 at 6:44 PM Hesham Almatary <heshamelmatary at gmail.com>
> wrote:
>
>>
>>
>> On Thu, 30 Apr 2020 at 13:51, Joel Sherrill <joel at rtems.org> wrote:
>>
>>>
>>>
>>> On Thu, Apr 30, 2020 at 7:34 AM suyash singh <suyashsingh234 at gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>> I was running clang UBSan on
>>>> bsps/sparc/erc32/btimer/btimer.c
>>>>
>>>> and got error
>>>>
>>>> /usr/bin/as: unrecognized option '-Av8'
>>>> clang-11: error: assembler command failed with exit code 1
>>>>
>>>> I am not sure but is it because clang is using wrong assembler?
>>>>
>>>
>>> I haven't seen anyone run into this in a long time. :)
>>>
>>> In this case, it is likely one of two things:
>>>
>>> + Look at your $PATH. Make sure the RTEMS tools are first.
>>>
>>> + But in your case, I expect that it is because the clang didn't
>>> know (somehow) to put the target name in front of the as.
>>> Did you invoke it for sparc-rtems5? If so, then there is a
>>> path through clang where it isn't looking at the target name.
>>>
>> That’s likely to be the problem. I expect Suyash isn’t cross compiling
>> with clang.
>>
>>
>>> I also double checked the as manual to ensure -Av8 was in
>>> fact a sparc option.
>>>
>>> --joel
>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> devel mailing list
>>>> devel at rtems.org
>>>> http://lists.rtems.org/mailman/listinfo/devel
>>>
>>> _______________________________________________
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>>
>> --
>> Hesham
>> _______________________________________________
>> devel mailing list
>> devel at rtems.org
>> http://lists.rtems.org/mailman/listinfo/devel
>
> --
Hesham
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