Date: Tue, 29 Oct 2002 23:58:11 -0800 (PST) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/ia64 exception.s Message-ID: <200210300758.g9U7wBtk012419@repoman.freebsd.org>
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marcel 2002/10/29 23:58:11 PST
Modified files:
sys/ia64/ia64 exception.s
Log:
Don't pass the return address to exception_save in register b0. Use
a true scratch register. This change and future re-allocations will
eventually result in code that we can unwind to to get the preserved
registers of the process. This of course means that we cannot trash
them while saving the process context.
While re-allocating, remove the register aliases. Abstraction is in
this case disadvanteous.
Revision Changes Path
1.37 +79 -98 src/sys/ia64/ia64/exception.s
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