Re: "no match" semantic error for some existing probe points

["Gui,Jian" <guij@cn.ibm.com>]

Alexandre Oliva wrote:
> Indeed, but this is an inlined call of ptrace_disabled.  What we're
> missing is info about the clear_single_step() inlined call.  However,
> in my kernel source tree, clear_single_step is a macro, not a
> function, so you won't get debug info for it without -g3 and, even
> then, you may not get any line numbers whatsoever for the function
> that does nothing but call a macro.
In 2.6.18.1, clear_single_step is defined as an inlined call in
arch/powerpc/kernel/ptrace.c (ppc64) or
arch/powerpc/kernel/ptrace.c (ppc32). Although it is also defined
as macro in arch/powerpc/kernel/traps.c, I think ptrace_disable is
using its inlined call definition.

> 
> I'm going to need preprocessed sources, a compilation command line and
> a compiler version number in order to try to get more detailed info
> and fix the compiler bug, if there is one.
> 
> Ideally, such info should be in a Systemtap bug report at
> sources.redhat.com or bugzilla.redhat.com.
> 
Thanks. I've opened bug 3441 for this and attached some data.
http://sourceware.org/bugzilla/show_bug.cgi?id=3441

Please let me know if more info is needed.

-Guijian