This is a note to let you know that I've just added the patch titled
perf annotate s390: Implement jump types for perf annotate
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-annotate-s390-implement-jump-types-for-perf-annotate.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d9f8dfa9baf9b6ae1f2f84f887176558ecde5268 Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Date: Thu, 6 Apr 2017 09:51:52 +0200
Subject: perf annotate s390: Implement jump types for perf annotate
From: Christian Borntraeger <borntraeger@xxxxxxxxxx>
commit d9f8dfa9baf9b6ae1f2f84f887176558ecde5268 upstream.
Implement simple detection for all kind of jumps and branches.
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Andreas Krebbel <krebbel@xxxxxxxxxxxxxxxxxx>
Cc: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: linux-s390 <linux-s390@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1491465112-45819-3-git-send-email-borntraeger@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/perf/arch/s390/annotate/instructions.c | 30 +++++++++++++++++++++++++++
tools/perf/util/annotate.c | 2 +
2 files changed, 32 insertions(+)
--- /dev/null
+++ b/tools/perf/arch/s390/annotate/instructions.c
@@ -0,0 +1,30 @@
+static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
+{
+ struct ins_ops *ops = NULL;
+
+ /* catch all kind of jumps */
+ if (strchr(name, 'j') ||
+ !strncmp(name, "bct", 3) ||
+ !strncmp(name, "br", 2))
+ ops = &jump_ops;
+ /* override call/returns */
+ if (!strcmp(name, "bras") ||
+ !strcmp(name, "brasl") ||
+ !strcmp(name, "basr"))
+ ops = &call_ops;
+ if (!strcmp(name, "br"))
+ ops = &ret_ops;
+
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+static int s390__annotate_init(struct arch *arch)
+{
+ if (!arch->initialized) {
+ arch->initialized = true;
+ arch->associate_instruction_ops = s390__associate_ins_ops;
+ }
+
+ return 0;
+}
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -108,6 +108,7 @@ static int arch__associate_ins_ops(struc
#include "arch/arm64/annotate/instructions.c"
#include "arch/x86/annotate/instructions.c"
#include "arch/powerpc/annotate/instructions.c"
+#include "arch/s390/annotate/instructions.c"
static struct arch architectures[] = {
{
@@ -132,6 +133,7 @@ static struct arch architectures[] = {
},
{
.name = "s390",
+ .init = s390__annotate_init,
.objdump = {
.comment_char = '#',
},
Patches currently in stable-queue which might be from borntraeger@xxxxxxxxxx are
queue-4.10/perf-annotate-s390-implement-jump-types-for-perf-annotate.patch
queue-4.10/perf-annotate-s390-fix-perf-annotate-error-95-4.10-regression.patch
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