llvm dev - Apr 2013 - [LLVMdev] Is the llvm ARM support big endian elf/obj output?

The llvm ARM backend is little endian elf output as my examination as below. Is
it support bid endian by other llc options as below?

 llc  -filetype=obj -march=arm // little endian
llc  -filetype=obj -march=? or -otheroption=? // to output big endian

Jonathan

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Hello

There is not support for big endian ARM at all.


On Tue, Apr 23, 2013 at 9:26 AM, gamma_chen <gamma_chen at yahoo.com.tw>
wrote:
> The llvm ARM backend is little endian elf output as my examination as
> below. Is it support bid endian by other llc options as below?
>
> llc  -filetype=obj -march=arm // little endian
> llc  -filetype=obj -march=? or -otheroption=? // to output big endian
>
> Jonathan
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University
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On Tue, Apr 23, 2013 at 10:29:32AM +0400, Anton Korobeynikov
wrote:
> Hello
> 
> There is not support for big endian ARM at all.
  I guess he need to change the data layout string in
ARMTargetMachine::ARMTargetMachine (ARMTargetMachine.cpp)
from "e" to "E" to get big endian output?

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj

All,

Thank you! I just want to know if it support big endian like Mips without
modify/add source code at this point, since I am new in ARM backend.

Jonathan

--- 13/4/23 (二)，Anton Korobeynikov <anton at korobeynikov.info> 寫道：

寄件者: Anton Korobeynikov <anton at korobeynikov.info>
主旨: Re: [LLVMdev] Is the llvm ARM support big endian elf/obj output?
收件者: "gamma_chen" <gamma_chen at yahoo.com.tw>
副本: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu>
日期: 2013年4月23日,二,下午2:29

Hello
There is not support for big endian ARM at all.

On Tue, Apr 23, 2013 at 9:26 AM, gamma_chen <gamma_chen at yahoo.com.tw>
wrote:


The llvm ARM backend is little endian elf output as my examination as below. Is
it support bid endian by other llc options as below?



 llc  -filetype=obj -march=arm // little endian
llc  -filetype=obj -march=? or -otheroption=? // to output big endian

Jonathan


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-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University


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