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powerpc/kgdb: Bail out of KGDB when we've been triggered
We need to skip a breakpoint exception when it occurs after a breakpoint has already been removed. Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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1 changed files with 15 additions and 0 deletions
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@ -101,6 +101,21 @@ static int computeSignal(unsigned int tt)
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return SIGHUP; /* default for things we don't know about */
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}
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/**
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*
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* kgdb_skipexception - Bail out of KGDB when we've been triggered.
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* @exception: Exception vector number
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* @regs: Current &struct pt_regs.
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*
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* On some architectures we need to skip a breakpoint exception when
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* it occurs after a breakpoint has been removed.
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*
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*/
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int kgdb_skipexception(int exception, struct pt_regs *regs)
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{
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return kgdb_isremovedbreak(regs->nip);
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}
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static int kgdb_call_nmi_hook(struct pt_regs *regs)
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{
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kgdb_nmicallback(raw_smp_processor_id(), regs);
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