Date: Sun, 23 Apr 2000 19:18:23 -0500 (CDT) From: Steve Price <sprice@hiwaay.net> To: Christian Weisgerber <naddy@mips.rhein-neckar.de> Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: porting Java to the alpha Message-ID: <Pine.OSF.4.21.0004231907330.11661-100000@fly.HiWAAY.net> In-Reply-To: <8dvtvm$1n46$1@bigeye.rhein-neckar.de>
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On 24 Apr 2000, Christian Weisgerber wrote:
# Talking about alpha assembly...
# I just did an "objdump -D" on alpha, and... well, the result doesn't
# look quite like what's described in the _Alpha Architecture Handbook_.
# I guess I can figure out the differences by disassembling the
# opcodes myself, but is this documented anywhere?
The best source I've found [1] for determining the contents
of sigjmp_buf besides the source, {,sig}setjmp.S, in libc is
the header file /usr/include/machine/signal.h. In particular
look at the osigcontext struct. This is almost exactly the
contents of sigjmp_buf. The biggest difference that I've found
is that the old signal mask is at sigjmp_buf._sjb[71] which
begins at sc_reserved[0] instead of in sc_mask as one would
expect.
HTH.
-steve
[1] The suggestion to look at osigcontext came from Doug Rabson.
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