linux-kernel - [PATCH 1/1] perf annotate s390: Fix perf annotate error -95 (4.10 regression)

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Date:   Tue, 11 Apr 2017 13:03:44 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Andreas Krebbel <krebbel@...ux.vnet.ibm.com>,
        Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-s390 <linux-s390@...r.kernel.org>, stable@...nel.org,
        #@...radead.org, v4.10+@...radead.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 1/1] perf annotate s390: Fix perf annotate error -95 (4.10 regression)

From: Christian Borntraeger <borntraeger@...ibm.com>

since 4.10 perf annotate exits on s390 with an "unknown error -95".
Turns out that commit 786c1b51844d ("perf annotate: Start supporting
cross arch annotation") added a hard requirement for architecture
support when objdump is used but only provided x86 and arm support.
Meanwhile power was added so lets add s390 as well.

While at it make sure to implement the branch and jump types.

Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
Cc: Andreas Krebbel <krebbel@...ux.vnet.ibm.com>
Cc: Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: linux-s390 <linux-s390@...r.kernel.org>
Cc: stable@...nel.org # v4.10+
Fixes: 786c1b51844 "perf annotate: Start supporting cross arch annotation"
Link: http://lkml.kernel.org/r/1491465112-45819-2-git-send-email-borntraeger@de.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/annotate.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 273f21fa32b5..7aa57225cbf7 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -130,6 +130,12 @@ static struct arch architectures[] = {
 		.name = "powerpc",
 		.init = powerpc__annotate_init,
 	},
+	{
+		.name = "s390",
+		.objdump =  {
+			.comment_char = '#',
+		},
+	},
 };
 
 static void ins__delete(struct ins_operands *ops)
-- 
2.9.3