Shawn,
> I've found myself playing around in eval.l and introducing segfaults it's a
> little slow to figure out where I went wrong.
The current version of emit.l encodes the file name and line number of the
source structure being generated in every temporary label. Also if you
uncomment the two lines in method 'gen <pair>' then an additional temp symbol
will be emitted for every change of source line number. Debugger backtraces
will then tell you what the program was doing to the nearest source line.
But, for what it's worth, here is the one I used to use before labels encoded
source positions. It assumes the source for your evaluator is in 'test.s' and
the executable is in 'test'.
Regards,
Ian
#!/bin/sh
awk '
/__L__.*:/ {label=$0; next}
/## defn / {fn=$0; next}
/## frame / {next}
/## / {print label, $2, $3, fn}
' < test.s >/tmp/test.map
echo "break exit
r $*
bt
" | gdb ./test | tee mkbacktrace.log | fgrep 'in __L__' | awk '{print $4}' |
while read i; do
fgrep "$i:" /tmp/test.map
done
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