Re: [PATCH 1/3] Fix ppc64 single step over atomic sequence testcase

[Luis Gustavo <luis_gustavo@mentor.com>]

On 06/12/2012 10:16 AM, Joel Brobecker wrote:
>> GDB is supposed to skip eacho sequence (__asm__ block) in response
>> to a "next", but it may have had its behavior changed from when i
>> originally wrote this. It seems to take multiple next's to get to a
>> different __asm__ block now, so it seems to be broken.
>>
>> It may be a difference in GCC's debuginfo output or GDB just got smarter.
>
> I might be wrong, but I don't remember us changing anything in this
> area. "next/step" behavior is really determined by the line info
> generated by the compiler.  If the compiler was changed from not
> generated a line entry for the __asm__ blocks, and now does, then
> it'll change GDB's behavior.  If next/step behavior testing is
> important to the testcase, then it would seem to make sense to
> convert the testcase to using an assembly file instead.
>

I agree that using an assembly file is both more apropriate and more 
straightforward when it comes to testing these sequences.

Luis