Re: [arm-gnu] load constructed constant in arm inline assembly - how?

[Nick Clifton <nickc@xxxxxxxxxx>]

Hi Kurt,

> I don't want to duplicate my important definitions accross assembler 
> format and C format of defines.

You can have the C pre-processor run on your assembler source file 
before it is handed to assembler itself.  Thus you can use C header 
files in your assembler source programs.  eg:

  #include "foo.h"
     .text
     ldr r0,=FOO

If you give your source file a .S extension (note the capital letter) 
then gcc will know to pass the source file through cpp first before 
giving it to gas.  If you are running on a case-insensitive file system 
then you can use the "-x assembler-with-cpp" gcc command line switch 
instead.

> Also, I can use the offsetof() macro to get structure member offsets, 
> rather than making offsets for each member of a struct in assembler:

This is more difficult.  Do you really need assembler instructions to 
access these structure fields ?  Can't you make use of C instead ? 
Maybe an inline function ?

Cheers
  Nick