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Re: [SH] gdb.dwarf2 tests: use .byte4 instead of .long
On 03/14/2012 08:25 PM, Jan Kratochvil wrote:
> On Wed, 14 Mar 2012 21:17:07 +0100, Pedro Alves wrote:
>> Is this due to the test having been originally written by adjusting gcc output?
>
> No, amd64 gcc just produces .long and .value.
/me confused :-)
>> Maybe gcc could be changed to emit .byte4 instead?
>
> I was looking at it once already but there are some concerns with
> compatibility with various non-GNU assemblers I was unaware of at all.
> As the assembler directives are chosen according to the target arch GCC can
> always adjust it accordingly. Multi-arch GDB testfiles cannot.
>
> It is true this .4byte directive probably breaks compatibility with some
> non-GNU assemblers but I believe easy cross-arch compatibility is of a more
> concern to GDB than such non-GNU assemblers compatibility. Or is it?
IMO, yes. There's always putting the .byte4/.something behind
preprocessor macros if somebody cares.
--
Pedro Alves