Re: [PATCH][GIT PULL][v2.6.32] tracing/x86: Add check to detect GCC messing with mcount prologue

[Andrew Haley]

Steven Rostedt wrote:
> Ingo, Thomas and Linus,
> 
> I know Thomas did a patch to force the -mtune=generic, but just in case
> gcc decides to do something crazy again, this patch will catch it.
> 
> Should we try to get this in now?

I'm sure this makes sense, but a gcc test case would be even better.
If this can be detected in the gcc test suite it'll be found and
fixed long before y'all in kernel land get to see it.  That's the
only way to guarantee this never bothers you again.

H.J., who wrote the code in question, is hopefully looking at why
this odd code is being generated.  Once he's done I can put a
suitable test case in the gcc test suite.

Andrew.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/