From: Craig Chambers (chambers@cs.washington.edu)
Date: Wed Dec 11 2002 - 17:17:43 PST
I'm publishing some very cool extensions to the Cecil debugger
(really, the debugger in the Vortex runtime system used by all
languages compiled by Vortex, including Cecil and Java).
*) I added a "next" command to the debugger, which implements a kind
of step-over operation, to step to the next message sent *from the
current stack frame*. This is much like gdb's next command. It even
works nicely in the face of lexically nested closures, stepping into
them and then back out of them, as if they were part of their
lexically enclosing frame. It prints out the message and arguments
that are about to be sent. I hope this will make a big improvement
in the debugging experience, e.g. for future 501 students hacking on
Whirlwind.
*) I refined the "finish" command so that it prints out the value
that's being returned. This involved a number of changes to how
bindings and environments and return_names are tracked in Vortex. I
also changed the address order in which inlined stack frames are laid
out so that finish will work somewhat more robustly.
*) I rebuilt vortex executables on solaris, solaris8, and linux, and
installed them in the central place.
*) I updated the How To Use Vortex manual, and installed it in our
internal web space.
I'm thinking that it might be nice to take the improvements we've made
to Vortex over the last couple of years, and produce a Vortex 3.1
release. If it's relatively easy to do, then I might just do it.
-- Craig
_______________________________________________
Cecil mailing list
Cecil@cs.washington.edu
http://mailman.cs.washington.edu/mailman/listinfo/cecil
This archive was generated by hypermail 2.1.5 : Wed Dec 11 2002 - 17:17:52 PST