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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


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