From: Namhyung Kim <namhyung@kernel.org>
Date: Thu, 26 Nov 2015 07:08:20 +0000 (+0900)
Subject: perf callchain: Honor hide_unresolved
X-Git-Tag: v4.14-rc1~4090^2~34^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b49a8fe52626814968b9a9d27d7ad1cadc5532ed;p=platform%2Fkernel%2Flinux-rpi.git

perf callchain: Honor hide_unresolved

If user requested to hide unresolved entries, skip unresolved callchains
as well as hist entries.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1448521700-32062-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 1442834..8a9c690 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -45,7 +45,6 @@ struct report {
 	struct perf_tool	tool;
 	struct perf_session	*session;
 	bool			use_tui, use_gtk, use_stdio;
-	bool			hide_unresolved;
 	bool			dont_use_callchains;
 	bool			show_full_info;
 	bool			show_threads;
@@ -146,7 +145,7 @@ static int process_sample_event(struct perf_tool *tool,
 	struct hist_entry_iter iter = {
 		.evsel 			= evsel,
 		.sample 		= sample,
-		.hide_unresolved 	= rep->hide_unresolved,
+		.hide_unresolved 	= symbol_conf.hide_unresolved,
 		.add_entry_cb 		= hist_iter__report_callback,
 	};
 	int ret = 0;
@@ -157,7 +156,7 @@ static int process_sample_event(struct perf_tool *tool,
 		return -1;
 	}
 
-	if (rep->hide_unresolved && al.sym == NULL)
+	if (symbol_conf.hide_unresolved && al.sym == NULL)
 		goto out_put;
 
 	if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
@@ -740,7 +739,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
 		   "separator for columns, no spaces will be added between "
 		   "columns '.' is reserved."),
-	OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
+	OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
 		    "Only display entries resolved to a symbol"),
 	OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 		    "Look for files with symbols relative to this directory"),
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7f5071a..f0019b7 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1618,6 +1618,8 @@ static int add_callchain_ip(struct thread *thread,
 		}
 	}
 
+	if (symbol_conf.hide_unresolved && al.sym == NULL)
+		return 0;
 	return callchain_cursor_append(&callchain_cursor, al.addr, al.map, al.sym);
 }
 
@@ -1872,6 +1874,9 @@ check_calls:
 static int unwind_entry(struct unwind_entry *entry, void *arg)
 {
 	struct callchain_cursor *cursor = arg;
+
+	if (symbol_conf.hide_unresolved && entry->sym == NULL)
+		return 0;
 	return callchain_cursor_append(cursor, entry->ip,
 				       entry->map, entry->sym);
 }
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index dcd786e..857f707 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -108,7 +108,8 @@ struct symbol_conf {
 			show_hist_headers,
 			branch_callstack,
 			has_filter,
-			show_ref_callgraph;
+			show_ref_callgraph,
+			hide_unresolved;
 	const char	*vmlinux_name,
 			*kallsyms_name,
 			*source_prefix,