Re: [arm-gnu] Fwd: Doubts regarding compatilbility issues between codesourcery assembler file and RVDS assembler file.

[Richard Earnshaw <rearnsha@xxxxxxx>]

On Thu, 2010-08-12 at 17:42 +0530, Abhinav Varma wrote:
> Hey,
> 
> I have a arm assembly source code whichi is compatible with
> CodeSourcery's arm-none-eabi-as. I also want to run it on RVCT 4.0
> armasm. But I am getting lot of errors as GAS and ARMASM aren't
> compatible. Is there any method to convert an assembly code from
> CodeSourcery's assembler to RVCT's assembler?
> 
> Initially I was trying the preprocessing on the armcc compiler which
> was unable to preprocess #error and the #define function directives.
> But then I thought that since they are already supported by
> arm-none-eabi-gcc, so lets run the preprocessor on the arm-gcc
> compiler. The generated assembly code (remember the file had assembly
> code with some C style directives) needs to be converted to arm-asm
> style code for which I have started working on mapping the
> instructions. I have problems mapping the following (arm-none-eabi-as)
> directives. If you have any information about which directives replace
> them on arm-asm, it would be very helpful.
> 
> 1) .word
> 2) .size myFunc, . -myFunc
> 3) .org 0x6a1
> 4) .fill 0x100,4,~0x1353A318
> 
> Thanks and Regards
> Abhinav

Both ARMASM and GAS use the same object file format (governed by the
ABI).  Is there any reason why you can't continue to use GAS for this
file?

R.