Symbol versioning errors in libthr
deischen at freebsd.org
Sun Feb 3 17:00:12 UTC 2008
On Sun, 3 Feb 2008, Dag-Erling Smørgrav wrote:
> Here's an excerpt from the RELENG_7 vs HEAD diff of libthr's symbol map:
> --- pthread.map 13 May 2007 14:12:39 -0000 1.18
> +++ pthread.map 20 Dec 2007 04:32:28 -0000 1.21
> @@ -84,9 +84,13 @@
> + pthread_mutex_getspinloops_np;
> + pthread_mutex_getyieldloops_np;
> + pthread_mutex_setspinloops_np;
> + pthread_mutex_setyieldloops_np;
> These functions are all in FBSD_1.0, but they were introduced after the
> branch and never MFCed, so if I understand how we've implemented symbol
> versioning, they should be in FBSD_1.1.
> Unless someone argues credibly for keeping them in FBSD_1.0, I will move
> them to FBSD_1.1 in a few days.
Yes, I believe you are correct in how we've decided to implement
the version namespace. After a branch from HEAD (e.g., after 7-
was branched), we increment the namespace and new symbols and
ABI changes get added to the new namespace.
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