Re: [PATCH] Linux Kernel Markers 0.20 for 2.6.17
Jeremy Fitzhardinge <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.kernel.tracing,gmane.linux.systemtap |
|---|---|
| Message-ID | <[email protected]> |
Mathieu Desnoyers wrote:
> I guess the correct way to handle it will be to put a "used" attribute in the
> asm-generic/marker.h code, remove the unnecessary "unused" attribute in
> asm-powerpc/marker.h and tell people to upgrade their gcc when it is broken.
>
It's subtle because it quietly drops the section with no other
symptoms. It could slip by unnoticed for quite a while.
> The other way around would be to make the macro "use" the structure somewhere
> without any impact.
>
asm volatile("" : : "m" (thing));
J