3 files changed, 51 insertions, 4 deletions
diff --git a/lib/tools/src/fprof.erl b/lib/tools/src/fprof.erl
index 2fe42beb03..fb657c2928 100644
--- a/lib/tools/src/fprof.erl
+++ b/lib/tools/src/fprof.erl
@@ -1136,7 +1136,7 @@ ensure_open(Pid, _Options) when is_pid(Pid) ->
 ensure_open([], _Options) ->
     {already_open, undefined};
 ensure_open(Filename, Options) when is_atom(Filename); is_list(Filename) ->
-    file:open(Filename, Options).
+    file:open(Filename, [{encoding, utf8} | Options]).
 
 %%%---------------------------------
 %%% Fairly generic utility functions
diff --git a/lib/tools/test/fprof_SUITE.erl b/lib/tools/test/fprof_SUITE.erl
index affb45b7a6..8fd164a4b3 100644
--- a/lib/tools/test/fprof_SUITE.erl
+++ b/lib/tools/test/fprof_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@
 %% Test suites
 -export([stack_seq/1, tail_seq/1, create_file_slow/1, spawn_simple/1,
          imm_tail_seq/1, imm_create_file_slow/1, imm_compile/1,
-         cpu_create_file_slow/1]).
+         cpu_create_file_slow/1, unicode/1]).
 
 %% Other exports
 -export([create_file_slow/2]).
@@ -59,7 +59,7 @@ all() ->
         false ->
             [stack_seq, tail_seq, create_file_slow, spawn_simple,
              imm_tail_seq, imm_create_file_slow, imm_compile,
-             cpu_create_file_slow]
+             cpu_create_file_slow, unicode]
     end.
 
 
@@ -533,6 +533,17 @@ cpu_create_file_slow(Config) when is_list(Config) ->
     TestResult.
 
 
+unicode(Config) when is_list(Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    SourceFile = filename:join(DataDir, "fprof_unicode.erl"),
+    PrivDir = proplists:get_value(priv_dir, Config),
+    AnalysisFile = filename:join(PrivDir, "fprof_unicode.analysis"),
+    {ok, fprof_unicode} = compile:file(SourceFile, [{outdir, PrivDir}]),
+    true = code:add_path(PrivDir),
+    fprof:apply(fprof_unicode, t, []),
+    ok = fprof:profile(dump, AnalysisFile),
+    ok = fprof:analyse(dest, AnalysisFile).
+
 %%%---------------------------------------------------------------------
 %%% Functions to test
 %%%---------------------------------------------------------------------
diff --git a/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl b/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl
new file mode 100644
index 0000000000..8b58efc5fe
--- /dev/null
+++ b/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl
@@ -0,0 +1,36 @@
+-module(fprof_unicode).
+
+-export([t/0, 'кирилли́ческий атом'/0, annan/0, c_break/1,
+        'кирилли́ческий атомB'/1]).
+
+t() ->
+    _Atom = 'кирилли́ческий атом',
+    'кирилли́ческий атом'().
+
+'кирилли́ческий атом'() ->
+    'кирилли́ческий атом'('кирилли́ческий атом').
+
+'кирилли́ческий атом'(_Atom) ->
+    self() ! 'кирилли́ческий атом',
+    G = fun (X) ->
+                catch foo:bar()
+        end,
+    G("кирилли́ческий атом"), % line 17
+    Pid = spawn_link(fun() -> waiting() end),
+    true = register('кирилли́ческий атом', Pid),
+    F = fun() -> 'кирилли́ческий атом' end,
+    F().
+
+annan() ->
+    foo.
+
+waiting() ->
+    receive
+        X -> X
+    end.
+
+c_break(_B) ->
+    true.
+
+'кирилли́ческий атомB'(_B) ->
+    true.