Re: [RFC][PATCH] Demultiplexing SIGTRAP signal

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* Srinivasa Ds <srinivasa@xxxxxxxxxx> wrote:

> On Monday 22 September 2008 20:24:04 Ingo Molnar wrote:
> > * Srinivasa Ds <srinivasa@xxxxxxxxxx> wrote:
> > > --- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
> > > +++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
> >
> > please do not send patches that modify include/asm/ files, the
> > include/asm-x86/ file should be modified instead.
> >
> > (this problem will go away in v2.6.28 when we'll move include/asm-x86/
> > to arch/x86/include/)
> >
> 
> Ingo, Sorry if I have confused you. [...]

hah, indeed - i mis-read them as include/asm/.

> Currently a SIGTRAP can denote any one of below reasons.
> 	- Breakpoint hit
> 	- H/W debug register hit
> 	- Single step
> 	- Signal sent through kill() or rasie()
> 
> Architectures like powerpc/parisc provides infrastructure to 
> demultiplex SIGTRAP signal by passing down the information for 
> receiving SIGTRAP through si_code of siginfot_t structure. Here is an 
> attempt is generalise this infrastructure by extending it to x86 and 
> x86_64 archs.

applied to [the new topic] tip/core/signal, thanks Srinivasa! There are 
some other pending x86 signal changes already, so i based 
tip/core/signal on tip/x86/signal.

Roland, any opinion on this change?

	Ingo
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