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alfred
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V 27
2013-01-10T17:58:05.994275Z
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V 650
Project branch for utrace2(2) work.

The original utrace(2) call from FreeBSD 2.2 did not offer a
standardized way to specify the type of data being traced.  Examples,
a utrace(2) record of 3 words is assumed to be a malloc(3) utrace
point, while RTLD uses a string at the start of the utrace record.

Instead of risking breaking 10+ years of existing code, utrace2 is
introduced which will include "type,version" tuple in the utrace
data to allow utilities such as ktrace to parse them safely.

Additionally a namespace is provided for both the base system and
for developers wishing to make use of the utrace2(2) system so
there are no collisions.

END