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    SubjectRe: [RFC][PATCH] Demultiplexing SIGTRAP signal

    * Srinivasa Ds <srinivasa@in.ibm.com> wrote:

    > On Monday 22 September 2008 20:24:04 Ingo Molnar wrote:
    > > * Srinivasa Ds <srinivasa@in.ibm.com> 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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