Date: Sun, 12 Jan 2003 12:44:44 -0800 (PST) From: John Polstra <jdp@polstra.com> To: sparc@freebsd.org Subject: Question about odd stack pointer values on sparc64 Message-ID: <XFMail.20030112124444.jdp@polstra.com>
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Still working on getting Modula-3 going on Sparc64. I think I'm
getting close ...
In GDB I notice that the stack pointer and frame pointer are often
(always?) odd numbers, e.g.:
(gdb) p/x $sp
$1 = 0x7fdffffdec1
(gdb) p/x $fp
$2 = 0x7fdffffdfb1
What is the reason for that? Are the low-order bits simply ignored?
Surely the stack is more aligned than that.
I'm pretty sure this is confusing the M3 garbage collector. It just
might be the proverbial Last Bug. :-)
Thanks,
John
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