linux-kernel - [patch 01/10] perf_event_open.2: 4.1 PERF_SAMPLE_BRANCH_CALL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.11.1504161410430.15181@vincent-weaver-1.umelst.maine.edu>
Date:	Thu, 16 Apr 2015 14:11:50 -0400 (EDT)
From:	Vince Weaver <vincent.weaver@...ne.edu>
To:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
cc:	linux-man@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	Kan Liang <kan.liang@...el.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [patch 01/10] perf_event_open.2: 4.1 PERF_SAMPLE_BRANCH_CALL_STACK


This manpage patch relates to the addition of the
PERF_SAMPLE_BRANCH_CALL_STACK functionaliry added in the
following commit:

	commit 2c44b1936bb3b135a3fac8b3493394d42e51cf70
	Author: Peter Zijlstra <peterz@...radead.org>

	perf/x86/intel: Expose LBR callstack to user space tooling
    
	With LBR call stack feature enable, there are three callchain options.
	Enable the 3rd callchain option (LBR callstack) to user space tooling.
    
	Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
	Cc: Jiri Olsa <jolsa@...hat.com>
	Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
	Cc: Andy Lutomirski <luto@...capital.net>
	Cc: Kan Liang <kan.liang@...el.com>
	Cc: Linus Torvalds <torvalds@...ux-foundation.org>
	Cc: Paul Mackerras <paulus@...ba.org>
	Cc: Vince Weaver <vincent.weaver@...ne.edu>
	Cc: linux-api@...r.kernel.org
	Link: http://lkml.kernel.org/r/20141105093759.GQ10501@worktop.programming.kicks-ass.net
	Signed-off-by: Ingo Molnar <mingo@...nel.org>

Signed-off-by: Vince Weaver <vincent.weaver@...ne.edu>

diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index 01ee579..691b16b 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -1203,6 +1203,11 @@ Branch in transactional memory transaction.
 .BR PERF_SAMPLE_BRANCH_NO_TX " (since Linux 3.11)"
 .\" commit 135c5612c460f89657c4698fe2ea753f6f667963
 Branch not in transactional memory transaction.
+.BR PERF_SAMPLE_BRANCH_CALL_STACK " (since Linux 4.1)"
+.\" commit 2c44b1936bb3b135a3fac8b3493394d42e51cf70
+Branch is part of a hardware generated call stack.
+This requires hardware support, currently only found
+on Intel x86 Haswell or newer.
 .RE
 
 .TP
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/