[issue1313] Signal code in kernel needs major overhaul (signal queues, si_code, si_addr)

["Alex Hornung \(via DragonFly issue tracker\)" <sinknull@xxxxxxxxxxxxxxxxxxxxxxx>]

Alex Hornung <ahornung@gmail.com> added the comment:

corecode commented on this on IRC, and it seems the changes should not focus
just on adding support for si_code but rather a major overhaul.
New signal code using signal queues should be added instead of just hacking the
current code to support si_code and si_addr.

Possibly FreeBSD can be used as a reference as they use signal queues and
si_code/si_addr. Their basic structure is ksiginfo_t in sys/signalvar.h.

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assignedto: alexh -> 
title: We miss signal code support -> Signal code in kernel needs major overhaul (signal queues, si_code, si_addr)

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