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From: Crispin Cowan (crispin_at_wirex.com)
Date: Sat Jul 20 2002 - 16:55:30 CDT
Leon Harris wrote:
> What are the options for a jre in immunix ? Kaffe is seriously broken
> in some respects, and wont run at least some apps.
> Does anyone have a stackguarded sun jre perhaps ( <wistful look>
> j2re1.3 </wistful look sigh=1>
StackGuard 2 breaks JIT-ified JVMs: Java semantics require stack
introspection. This becomes problematic when execution passes through
StackGuarded system libraries, and then stack introspection blows up
when the stack doesn't look like the JIT code thinks it should.
StackGuard 3 (which will ship with Immunix 7+) is using a new technique
that will not induce these JIT problems.
The interim workaround is to provide non-StackGuarded system libraries,
and hack your load paths so that the JIT code links with the
non-StackGuarded libraries. Steve has some RPMs lying around that do
this, but I don't have the URL handy.
-- Crispin Cowan, Ph.D. Chief Scientist, WireX Communications, Inc. http://wirex.com/~crispin/ Security Hardened Linux Distribution: http://immunix.org Available for purchase: http://wirex.com/Products/Immunix/purchase.html
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