Message 332134 - Python tracker

➜

This issue tracker has been migrated to GitHub , and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

In-reply-to
Author	vstinner
Recipients	gregory.p.smith, vstinner
Date	2018年12月19日.12:21:49
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1545222109.33.0.788709270274.issue35499@psf.upfronthosting.co.za>

Content
> (...) things like PGO often require flags that the linker sees in order to generate the instrumented binary. If those are left off of the link step, you won't have an instrumented binary and won't generate profile data. Oh, I didn't try my PR... $ ./configure --enable-optimizations $ make ... /usr/bin/ld: libpython3.8m.a(myreadline.o):(.data+0xa0): undefined reference to `__gcov_merge_add' ... My PR simply doesn't work: we have to pass PGO flags to the linker. At least for the first step generating a profile. My bad, sorry, I close my PR 11219.

Content

> (...) things like PGO often require flags that the linker sees in order to generate the instrumented binary. If those are left off of the link step, you won't have an instrumented binary and won't generate profile data.
Oh, I didn't try my PR...
$ ./configure --enable-optimizations
$ make
...
/usr/bin/ld: libpython3.8m.a(myreadline.o):(.data+0xa0): undefined reference to `__gcov_merge_add'
...
My PR simply doesn't work: we have to pass PGO flags to the linker. At least for the first step generating a profile.
My bad, sorry, I close my PR 11219.

History
Date	User	Action	Args
2018年12月19日 12:21:49	vstinner	set	recipients: + vstinner, gregory.p.smith
2018年12月19日 12:21:49	vstinner	set	messageid: <1545222109.33.0.788709270274.issue35499@psf.upfronthosting.co.za>
2018年12月19日 12:21:49	vstinner	link	issue35499 messages
2018年12月19日 12:21:49	vstinner	create

homepage