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CVS commit: src/sys/arch/acorn26/acorn26

Module Name:    src
Committed By:   bjh21
Date:           Sun Jan 18 15:14:34 UTC 2009

Modified Files:
        src/sys/arch/acorn26/acorn26: locore.S

Log Message:
Add what I hope is a useful feature whereby, in DIAGNOSTIC builds, trap
handlers leave a useful sentinel value in R14_svc instead of their own
return address.  This should mean that if something causes a trap in SVC
mode without saving R14 first, it'll cause a nice obvious panic rather than
a hang or worse.  Of course, if it's using R14 as a temporary, there may
still be some confusion.

To generate a diff of this commit:
cvs rdiff -r1.19 -r1.20 src/sys/arch/acorn26/acorn26/locore.S

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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