cvs commit: src/sys/sys signal.h

[Scott Long]

John Baldwin wrote:
> On Wednesday 07 December 2005 04:16 pm, Doug Ambrisko wrote:
> 
>>David Xu writes:
>>| David Xu wrote:
>>| > davidxu     2005-12-06 06:02:35 UTC
>>| >
>>| >   FreeBSD src repository
>>| >
>>| >   Modified files:
>>| >     sys/sys              signal.h
>>| >   Log:
>>| >   o Add some pad fields into struct sigevent for future extension.
>>| >     (suggested by alfred@)
>>| >   o Reuse si_band field in struct __siginfo, add a mqd member which
>>| > will be used by mqueue.
>>| >   o Add code SI_KERNEL to indicate a signal is queued by kernel.
>>| >
>>| >   Revision  Changes    Path
>>| >   1.54      +14 -2     src/sys/sys/signal.h
>>|
>>| You have to rebuild world and your program if you are using aio,
>>| signal queue, timer, or mqueue which are new to many FreeBSD
>>| people. ;-)
>>
>>Does this include people running FreeBSD 4.X compiled programs on -current?
> 
> 
> Even 6.x programs that use aio would be affected if 4.x ones were affected.  I 
> think aio is the only thing 6.x and earlier could be using though.
> 

So will there be some sort of compatibility shims?  I bet that there 
will still be a lot of 4.x binaries being run on 7.0 systems in the
future, just like 2.2.8 binaries were being run for years after 3.x and
4.x came out.

Scott