Message 105035 - Python tracker

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In-reply-to
Author	mark.dickinson
Recipients	lemburg, mark.dickinson, pitrou, vstinner
Date	2010年05月05日.14:03:47
SpamBayes Score	0.00013352367
Marked as misclassified	No
Message-id	<1273068229.98.0.576087123255.issue8625@psf.upfronthosting.co.za>

Content
When doing a debug build of Python with gcc, without any previous setting of CFLAGS, the '-O2' flag is now automatically included. This behaviour started in r79218. It would be nice to restore the original behaviour, if possible, since the optimization causes difficulties when debugging. One solution would be to add '-O0' to OPT for debug builds (on gcc), as in the attached patch. You then get compiler flags including: "-g -O2 -g -O0" which is somewhat ugly, but the -O0 overrides the -O2 (I think). Does this seem like a reasonable solution?

Content

When doing a debug build of Python with gcc, without any previous setting of CFLAGS, the '-O2' flag is now automatically included.
This behaviour started in r79218.
It would be nice to restore the original behaviour, if possible, since the optimization causes difficulties when debugging. One solution would be to add '-O0' to OPT for debug builds (on gcc), as in the attached patch. You then get compiler flags including:
"-g -O2 -g -O0"
which is somewhat ugly, but the -O0 overrides the -O2 (I think). Does this seem like a reasonable solution?

History
Date	User	Action	Args
2010年05月05日 14:03:50	mark.dickinson	set	recipients: + mark.dickinson, lemburg, pitrou, vstinner
2010年05月05日 14:03:49	mark.dickinson	set	messageid: <1273068229.98.0.576087123255.issue8625@psf.upfronthosting.co.za>
2010年05月05日 14:03:48	mark.dickinson	link	issue8625 messages
2010年05月05日 14:03:48	mark.dickinson	create

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