K 10
svn:author
V 8
bdrewery
K 8
svn:date
V 27
2015-10-06T21:58:38.978031Z
K 7
svn:log
V 398
truss: Add support for utrace(2).

This uses the kdump(1) utrace support code directly until a common library
is created.

This allows malloc(3) tracing with MALLOC_CONF=utrace:true and rtld tracing
with LD_UTRACE=1.  Unknown utrace(2) data is just printed as hex.

PR:		43819 [inspired by]
Reviewed by:	jhb
MFC after:	2 weeks
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D3819

END