[GHC] #592: signal handlers should be able to access siginfo_t information

[GHC]

#592: signal handlers should be able to access siginfo_t information
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 Reporter:  simonmar         |       Owner:       
     Type:  feature request  |      Status:  new  
 Priority:  normal           |   Milestone:       
Component:  libraries/base   |     Version:  6.4.1
 Severity:  normal           |    Keywords:       
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Currently a Haskell signal handler doesn't get much information at all.
 There ought to be a way to access all the information that the C signal
 handler gets (siginfo_t).

 There might be some implementation trickiness: we have to stash away the
 siginfo_t somewhere in the signal handler, and we have to do that without
 using malloc().

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Ticket URL: <http://cvs.haskell.org/trac/ghc/ticket/592>
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