src/lib/libpmcstat/libpmcstat_process.c, branch releng/12.2

src/lib/libpmcstat/libpmcstat_process.c, branch releng/12.2 FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F12.2 2017-10-24T16:28:00Z Extract a set of pmcstat functions and interfaces to the new internal 2017-10-24T16:28:00Z Ruslan Bukin br@FreeBSD.org 2017-10-24T16:28:00Z urn:sha1:d27927f731d6877267b0db84664776d2e62fc443 library -- libpmcstat. This includes PMC logging module, symbols lookup functions, ELF parsing, process management, PMC attachment, etc. This allows to reuse code while building new hwpmc(4)-based applications. Also add pmcstat_symbol_search_by_name() function that allows to find mapped IP range for a given function name. Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12718