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Cc: reko.turja@liukuma.net
Subject: RE: X86 machine code enter and FreeBSD kernel
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>I received no reply on this question at questions mailing list, so I try=

>
>asking this here. Hope I'm not asking this in completely wrong list.
>
>In recent discussion in OpenWatcom lists it was noticed that at least
>certain addressing modes of assembler ENTER instruction causes a crash
>when used in Linux. GCC circumnavigates this by not emitting ENTER
>instructions in machine code. Linus's comment on the above issue can be
>found on:
>
>http://groups.google.co.nz/groups?selm=3D7i86ni%24b7n%241%40palladium.tr=
ansmeta.com
>
>What's the status of the above "feature" in FreeBSD, does the kernel 
>support the
>whole x86 instruction set without similar cut corners?
>
>-Reko

Mainly, I think gcc sets stack by hands beacause ENTER does a lot of dirt=
y
work. If you see x86 pseudocode, it perform a lot of wasting work... howe=
ver,
what you proposed is not a bug, just a way of ruling stack frames.

rookie