K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2020-10-26T16:42:53.604060Z
K 7
svn:log
V 550
db_search_symbol: prevent pollution from bogus symbols

The kernel will never map the first page, so any symbols in that
range cannot refer to addresses.  Some third-party assembly files
define internal constants which appear in their symbol table.
Avoiding the lookup for those symbols avoids replacing small offsets
with those symbols during disassembly.

Reported by:	Anton Rang <rang%acm.org>
Reviewed by:	Anton Rang <rang%acm.org>, markj
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D26895

END