linux-kernel - [PATCH v2 13/19] perf, tools: Print generic metric header even for failed expressions

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

Date:   Fri, 11 Aug 2017 16:26:28 -0700
From:   Andi Kleen <andi@...stfloor.org>
To:     acme@...nel.org
Cc:     jolsa@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH v2 13/19] perf, tools: Print generic metric header even for failed expressions

From: Andi Kleen <ak@...ux.intel.com>

Print the generic metric header even when the expression evaluation
failed. Otherwise an expression that fails on the first collections
due to division by zero may suddenly reappear later without
an header.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 tools/perf/util/stat-shadow.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index b6cbb6e67167..4ec2d8d15344 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -662,7 +662,9 @@ static void generic_metric(const char *metric_expr,
 			out->force_header ?  name : "",
 				ratio);
 		else
-			print_metric(ctxp, NULL, NULL, "", 0);
+			print_metric(ctxp, NULL, NULL,
+				     out->force_header ?
+				     (metric_name ? metric_name : name) : "", 0);
 	} else
 		print_metric(ctxp, NULL, NULL, "", 0);
 }
-- 
2.9.4