linux-kernel - [tip:perf/core] perf tools: Update cpumode for each cumulative entry

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Date:	Tue, 3 Jun 2014 11:32:24 -0700
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	jolsa@...nel.org, rodrigo@...g.com.ar, namhyung@...nel.org,
	fweisbec@...il.com, tglx@...utronix.de, asharma@...com
Subject: [tip:perf/core] perf tools:
  Update cpumode for each cumulative entry

Commit-ID:  c7405d85d7a354b8ba49e2db7c4b027e6cb997c1
Gitweb:     http://git.kernel.org/tip/c7405d85d7a354b8ba49e2db7c4b027e6cb997c1
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Thu, 31 Oct 2013 13:58:30 +0900
Committer:  Jiri Olsa <jolsa@...nel.org>
CommitDate: Sun, 1 Jun 2014 14:34:58 +0200

perf tools: Update cpumode for each cumulative entry

The cpumode and level in struct addr_localtion was set for a sample
and but updated as cumulative callchains were added.  This led to have
non-matching symbol and cpumode in the output.

Update it accordingly based on the fact whether the map is a part of
the kernel or not.  This is a reverse of what thread__find_addr_map()
does.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Tested-by: Arun Sharma <asharma@...com>
Tested-by: Rodrigo Campos <rodrigo@...g.com.ar>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Link: http://lkml.kernel.org/r/1401335910-16832-7-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/util/callchain.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/callchain.h |  2 ++
 tools/perf/util/hist.c      | 13 ++-----------
 3 files changed, 46 insertions(+), 11 deletions(-)

diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 2af69c4..48b6d3f 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -630,3 +630,45 @@ int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *samp
 		return 0;
 	return callchain_append(he->callchain, &callchain_cursor, sample->period);
 }
+
+int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *node,
+			bool hide_unresolved)
+{
+	al->map = node->map;
+	al->sym = node->sym;
+	if (node->map)
+		al->addr = node->map->map_ip(node->map, node->ip);
+	else
+		al->addr = node->ip;
+
+	if (al->sym == NULL) {
+		if (hide_unresolved)
+			return 0;
+		if (al->map == NULL)
+			goto out;
+	}
+
+	if (al->map->groups == &al->machine->kmaps) {
+		if (machine__is_host(al->machine)) {
+			al->cpumode = PERF_RECORD_MISC_KERNEL;
+			al->level = 'k';
+		} else {
+			al->cpumode = PERF_RECORD_MISC_GUEST_KERNEL;
+			al->level = 'g';
+		}
+	} else {
+		if (machine__is_host(al->machine)) {
+			al->cpumode = PERF_RECORD_MISC_USER;
+			al->level = '.';
+		} else if (perf_guest) {
+			al->cpumode = PERF_RECORD_MISC_GUEST_USER;
+			al->level = 'u';
+		} else {
+			al->cpumode = PERF_RECORD_MISC_HYPERVISOR;
+			al->level = 'H';
+		}
+	}
+
+out:
+	return 1;
+}
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index bde2b0c..24a53d5 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -162,6 +162,8 @@ int sample__resolve_callchain(struct perf_sample *sample, struct symbol **parent
 			      struct perf_evsel *evsel, struct addr_location *al,
 			      int max_stack);
 int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample);
+int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *node,
+			bool hide_unresolved);
 
 extern const char record_callchain_help[];
 int parse_callchain_report_opt(const char *arg);
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6079b5a..37c28fc 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -743,18 +743,9 @@ iter_next_cumulative_entry(struct hist_entry_iter *iter,
 	if (node == NULL)
 		return 0;
 
-	al->map = node->map;
-	al->sym = node->sym;
-	if (node->map)
-		al->addr = node->map->map_ip(node->map, node->ip);
-	else
-		al->addr = node->ip;
-
-	if (iter->hide_unresolved && al->sym == NULL)
-		return 0;
-
 	callchain_cursor_advance(&callchain_cursor);
-	return 1;
+
+	return fill_callchain_info(al, node, iter->hide_unresolved);
 }
 
 static int
--
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