[Jikesrvm-core] proposed change to jconfigure/jbuild

[Janice S. <ja...@us...>]

Currently there is an environment variable OPT_ARGS that is read by
jconfigure. jconfigure writes the value currently set into the script
jbuild.linkImage.

If you are trying to debug a problem that shows up at bootImage build time
then you may want to adjust the options that are used as you run repeated
"jbuild" commands.  With the current system you need to rerun jconfigure to
pick up the new OPT_ARGS or change jbuild.linkImage.

I propose to change this system, to instead have jbuild.linkImage pick up
the current value of the OPT_ARGS environment variable.

Thus, in korn shell you can run

OPT_ARGS="-X:bc:high=true -X:bc:method_to_print=A.method"  jbuild

on one run and on the next specify


OPT_ARGS="-X:bc:low=true -X:bc:method_to_print=A.method"  jbuild

without having to run jconfigure a second time.

Please let me know if you have any concerns with this change.

Janice

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Janice C. Shepherd
 ja...@wa... (or ja...@us...)
IBM T.J. Watson Research
1S-B57 Hawthorne
Phone: (914)784-7571  tieline: 863-7571