8 files changed, 145 insertions, 148 deletions
diff --git a/lib/tools/doc/src/lcnt.xml b/lib/tools/doc/src/lcnt.xml
index 922c2ac0f4..5bdfc60448 100644
--- a/lib/tools/doc/src/lcnt.xml
+++ b/lib/tools/doc/src/lcnt.xml
@@ -471,7 +471,7 @@
                     <c>lcnt:rt_opt/2</c>.
                 </p>
                 <p>Valid categories are:</p>
-                <taglist>
+                <list>
                     <item><c>allocator</c></item>
                     <item><c>db</c> (ETS tables)</item>
                     <item><c>debug</c></item>
@@ -480,7 +480,7 @@
                     <item><c>io</c></item>
                     <item><c>process</c></item>
                     <item><c>scheduler</c></item>
-                </taglist>
+                </list>
                 <p>
                     This list is subject to change at any time, as is the category any given lock
                     may belong to.
diff --git a/lib/tools/emacs/erlang.el b/lib/tools/emacs/erlang.el
index 012de479d3..411e0e13df 100644
--- a/lib/tools/emacs/erlang.el
+++ b/lib/tools/emacs/erlang.el
@@ -1,10 +1,10 @@
-;;; erlang.el --- Major modes for editing and running Erlang
+;;; erlang.el --- Major modes for editing and running Erlang -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2004  Free Software Foundation, Inc.
 ;; Author:   Anders Lindgren
 ;; Keywords: erlang, languages, processes
 ;; Date:     2011-12-11
-;; Version:  2.7.0
+;; Version:  2.8.0
 ;; Package-Requires: ((emacs "24.1"))
 
 ;; %CopyrightBegin%
@@ -84,7 +84,7 @@
   "The Erlang programming language."
   :group 'languages)
 
-(defconst erlang-version "2.7"
+(defconst erlang-version "2.8.0"
   "The version number of Erlang mode.")
 
 (defcustom erlang-root-dir nil
@@ -931,6 +931,7 @@ resulting regexp is surrounded by \\_< and \\_>."
       "has_prepared_code_on_load"
       "hibernate"
       "insert_element"
+      "iolist_to_iovec"
       "is_builtin"
       "load_nif"
       "loaded"
@@ -1019,26 +1020,15 @@ files written in other languages than Erlang.")
 If nil, the inferior shell replaces the window. This is the traditional
 behaviour.")
 
-(defconst inferior-erlang-use-cmm (boundp 'minor-mode-overriding-map-alist)
-  "Non-nil means use `compilation-minor-mode' in Erlang shell.")
-
 (defvar erlang-mode-map
   (let ((map (make-sparse-keymap)))
-    (unless (boundp 'indent-line-function)
-      (define-key map "\t"        'erlang-indent-command))
     (define-key map ";"       'erlang-electric-semicolon)
     (define-key map ","       'erlang-electric-comma)
     (define-key map "<"         'erlang-electric-lt)
     (define-key map ">"         'erlang-electric-gt)
     (define-key map "\C-m"      'erlang-electric-newline)
-    (if (not (boundp 'delete-key-deletes-forward))
-        (define-key map "\177" 'backward-delete-char-untabify)
-      (define-key map [(backspace)] 'backward-delete-char-untabify))
-    ;;(unless (boundp 'fill-paragraph-function)
+    (define-key map [(backspace)] 'backward-delete-char-untabify)
     (define-key map "\M-q"      'erlang-fill-paragraph)
-    (unless (boundp 'beginning-of-defun-function)
-      (define-key map "\M-\C-a"   'erlang-beginning-of-function)
-      (define-key map "\M-\C-e"   'erlang-end-of-function))
     (define-key map "\M-\t"     'erlang-complete-tag)
     (define-key map "\C-c\M-\t" 'tempo-complete-tag)
     (define-key map "\M-+"      'erlang-find-next-tag)
@@ -1057,8 +1047,6 @@ behaviour.")
     (define-key map "\C-c\C-y"  'erlang-clone-arguments)
     (define-key map "\C-c\C-a"  'erlang-align-arrows)
     (define-key map "\C-c\C-z"  'erlang-shell-display)
-    (unless inferior-erlang-use-cmm
-      (define-key map "\C-x`"    'erlang-next-error))
     map)
   "Keymap used in Erlang mode.")
 (defvar erlang-mode-abbrev-table nil
@@ -2083,12 +2071,6 @@ This function is aware of imported functions."
            (when funcname
              (erlang-man-find-function (current-buffer) funcname))))))
 
-(defun erlang-default-function-or-module ()
-  (let ((id (erlang-get-identifier-at-point)))
-    (if (eq (erlang-id-kind id) 'qualified-function)
-        (format "%s:%s" (erlang-id-module id) (erlang-id-name id))
-      (erlang-id-name id))))
-
 
 ;; Should the defadvice be at the top level, the package `advice' would
 ;; be required.  Now it is only required when this functionality
@@ -3396,14 +3378,6 @@ at the end."
 
 ;;; Information retrieval functions.
 
-(defun erlang-buffer-substring (beg end)
-  "Like `buffer-substring-no-properties'.
-Although, this function works on all versions of Emacs."
-  (if (fboundp 'buffer-substring-no-properties)
-      (funcall (symbol-function 'buffer-substring-no-properties) beg end)
-    (buffer-substring beg end)))
-
-
 (defun erlang-get-module ()
   "Return the name of the module as specified by `-module'.
 
@@ -3421,7 +3395,7 @@ Return nil if file contains no `-module' attribute."
                            "\\)?\\)\\s *)\\s *\\."))
                  (point-max) t)
                 (erlang-remove-quotes
-                 (erlang-buffer-substring (match-beginning 1)
+                 (buffer-substring-no-properties (match-beginning 1)
                                           (match-end 1)))
               nil)
           (store-match-data md))))))
@@ -3475,10 +3449,10 @@ corresponds to the order of the parsed Erlang list."
                    (setq res (cons
                               (cons
                                (erlang-remove-quotes
-                                (erlang-buffer-substring
+                                (buffer-substring-no-properties
                                  (match-beginning 1) (match-end 1)))
                                (string-to-number
-                                (erlang-buffer-substring
+                                (buffer-substring-no-properties
                                  (match-beginning
                                   (+ 1 erlang-atom-regexp-matches))
                                  (match-end
@@ -3525,7 +3499,7 @@ function and arity as cdr part."
               (erlang-skip-blank)
               (if (looking-at erlang-atom-regexp)
                   (let ((module (erlang-remove-quotes
-                                 (erlang-buffer-substring
+                                 (buffer-substring-no-properties
                                   (match-beginning 0)
                                   (match-end 0)))))
                     (goto-char (match-end 0))
@@ -3558,7 +3532,7 @@ Normally used in conjunction with `erlang-beginning-of-clause', e.g.:
   (let ((n (if arg 0 1)))
     (and (looking-at (eval-when-compile
                        (concat "^" erlang-atom-regexp "\\s *(")))
-         (erlang-buffer-substring (match-beginning n) (match-end n)))))
+         (buffer-substring-no-properties (match-beginning n) (match-end n)))))
 
 
 (defun erlang-get-function-arrow ()
@@ -3572,7 +3546,7 @@ Normally used in conjunction with `erlang-beginning-of-clause', e.g.:
   (and
    (save-excursion
      (re-search-forward "->" (point-max) t)
-     (erlang-buffer-substring (- (point) 2) (+ (point) 1)))))
+     (buffer-substring-no-properties (- (point) 2) (+ (point) 1)))))
 
 (defun erlang-get-function-arity ()
   "Return the number of arguments of function at point, or nil."
@@ -3638,7 +3612,7 @@ The return value is a string of the form \"foo/1\"."
           (let ((start (match-end 0)))
             (goto-char (- start 1))
             (forward-sexp)
-            (erlang-buffer-substring start (- (point) 1)))
+            (buffer-substring-no-properties start (- (point) 1)))
         (error nil)))))
 
 
@@ -3703,10 +3677,10 @@ of arguments could be found, otherwise nil."
 (defun erlang-get-qualified-function-id-at-point ()
   (let ((kind 'qualified-function)
         (module (erlang-remove-quotes
-                 (erlang-buffer-substring
+                 (buffer-substring-no-properties
                   (match-beginning 1) (match-end 1))))
         (name (erlang-remove-quotes
-               (erlang-buffer-substring
+               (buffer-substring-no-properties
                 (match-beginning (1+ erlang-atom-regexp-matches))
                 (match-end (1+ erlang-atom-regexp-matches)))))
         (arity (progn
@@ -3718,14 +3692,14 @@ of arguments could be found, otherwise nil."
   (let ((kind 'module)
         (module nil)
         (name (erlang-remove-quotes
-               (erlang-buffer-substring (match-beginning 1)
+               (buffer-substring-no-properties (match-beginning 1)
                                         (match-end 1))))
         (arity nil))
     (list kind module name arity)))
 
 (defun erlang-get-some-other-id-at-point ()
   (let ((name (erlang-remove-quotes
-               (erlang-buffer-substring
+               (buffer-substring-no-properties
                 (match-beginning 0) (match-end 0))))
         (imports (erlang-get-import))
         kind module arity)
@@ -3792,6 +3766,21 @@ of arguments could be found, otherwise nil."
   (nth 3 (erlang-id-to-list id)))
 
 
+(defun erlang-default-function-or-module ()
+  (erlang-with-id (kind module name) (erlang-get-identifier-at-point)
+    (let ((x (cond ((eq kind 'module)
+                    (format "%s:" name))
+                   ((eq kind 'record)
+                    (format "-record(%s" name))
+                   ((eq kind 'macro)
+                    (format "-define(%s" name))
+                   (t
+                    name))))
+      (if module
+          (format "%s:%s" module x)
+        x))))
+
+
 ;; TODO: Escape single quotes inside the string without
 ;; replace-regexp-in-string.
 (defun erlang-add-quotes-if-needed (str)
@@ -4999,9 +4988,10 @@ considered first when it is time to jump to the definition.")
   (and (fboundp 'xref-make)
        (fboundp 'xref-make-file-location)
        (let* ((first-time t)
+              (cbuf (current-buffer))
               xrefs matching-files)
          (save-excursion
-           (while (visit-tags-table-buffer (not first-time))
+           (while (erlang-visit-tags-table-buffer (not first-time) cbuf)
              (setq first-time nil)
              (let ((files (tags-table-files)))
                (while files
@@ -5017,6 +5007,10 @@ considered first when it is time to jump to the definition.")
                  (setq files (cdr files))))))
          (nreverse xrefs))))
 
+(defun erlang-visit-tags-table-buffer (cont cbuf)
+  (if (< emacs-major-version 26)
+      (visit-tags-table-buffer cont)
+    (visit-tags-table-buffer cont cbuf)))
 
 (defun erlang-xref-find-definitions-module-tag (module
                                                 tag
@@ -5120,7 +5114,7 @@ Erlang compilation package.")
   "Command to execute to go to the next error.
 
 Change this variable to use your favorite Erlang compilation
-package.  Not used in Emacs 21.")
+package.")
 
 
 ;;;###autoload
@@ -5179,6 +5173,13 @@ future, a new shell on an already running host will be started."
 (defvar erlang-shell-buffer-name "*erlang*"
   "The name of the Erlang link shell buffer.")
 
+(defcustom erlang-shell-prompt-read-only t
+  "If non-nil, the prompt will be read-only.
+
+Also see the description of `ielm-prompt-read-only'."
+  :type 'boolean
+  :package-version '(erlang . "2.8.0"))
+
 (defvar erlang-shell-mode-map nil
   "Keymap used by Erlang shells.")
 
@@ -5219,17 +5220,11 @@ The following special commands are available:
     (setq erlang-shell-mode-map (copy-keymap comint-mode-map))
     (erlang-shell-mode-commands erlang-shell-mode-map))
   (use-local-map erlang-shell-mode-map)
-  (unless inferior-erlang-use-cmm
-    ;; This was originally not a marker, but it needs to be, at least
-    ;; in Emacs 21, and should be backwards-compatible.  Otherwise,
-    ;; would need to test whether compilation-parsing-end is a marker
-    ;; after requiring `compile'.
-    (set (make-local-variable 'compilation-parsing-end) (copy-marker 1))
-    (set (make-local-variable 'compilation-error-list) nil)
-    (set (make-local-variable 'compilation-old-error-list) nil))
   ;; Needed when compiling directly from the Erlang shell.
   (setq compilation-last-buffer (current-buffer))
   (setq comint-prompt-regexp "^[^>=]*> *")
+  (make-local-variable 'comint-prompt-read-only)
+  (setq comint-prompt-read-only erlang-shell-prompt-read-only)
   (setq comint-eol-on-send t)
   (setq comint-input-ignoredups t)
   (setq comint-scroll-show-maximum-output t)
@@ -5243,24 +5238,20 @@ The following special commands are available:
   (comint-read-input-ring t)
   (make-local-variable 'kill-buffer-hook)
   (add-hook 'kill-buffer-hook 'comint-write-input-ring)
-  ;; At least in Emacs 21, we need to be in `compilation-minor-mode'
-  ;; for `next-error' to work.  We can avoid it clobbering the shell
-  ;; keys thus.
-  (when inferior-erlang-use-cmm
-    (compilation-minor-mode 1)
-    (set (make-local-variable 'minor-mode-overriding-map-alist)
-         `((compilation-minor-mode
-            . ,(let ((map (make-sparse-keymap)))
-                 ;; It would be useful to put keymap properties on the
-                 ;; error lines so that we could use RET and mouse-2
-                 ;; on them directly.
-                 (when (boundp 'compilation-skip-threshold) ; new compile.el
-                   (define-key map [mouse-2] #'erlang-mouse-2-command)
-                   (define-key map "\C-m" #'erlang-RET-command))
-                 (if (boundp 'compilation-menu-map)
-                     (define-key map [menu-bar compilation]
-                       (cons "Errors" compilation-menu-map)))
-                 map)))))
+  (compilation-minor-mode 1)
+  (set (make-local-variable 'minor-mode-overriding-map-alist)
+       `((compilation-minor-mode
+          . ,(let ((map (make-sparse-keymap)))
+               ;; It would be useful to put keymap properties on the
+               ;; error lines so that we could use RET and mouse-2
+               ;; on them directly.
+               (when (boundp 'compilation-skip-threshold) ; new compile.el
+                 (define-key map [mouse-2] #'erlang-mouse-2-command)
+                 (define-key map "\C-m" #'erlang-RET-command))
+               (if (boundp 'compilation-menu-map)
+                   (define-key map [menu-bar compilation]
+                     (cons "Errors" compilation-menu-map)))
+               map))))
   (erlang-tags-init)
   (run-hooks 'erlang-shell-mode-hook))
 
@@ -5289,9 +5280,7 @@ Selects Comint or Compilation mode command as appropriate."
   (define-key map "\C-a"     'comint-bol) ; Normally the other way around.
   (define-key map "\C-c\C-a" 'beginning-of-line)
   (define-key map "\C-d"     nil)       ; Was `comint-delchar-or-maybe-eof'
-  (define-key map "\M-\C-m"  'compile-goto-error)
-  (unless inferior-erlang-use-cmm
-    (define-key map "\C-x`"    'erlang-next-error)))
+  (define-key map "\M-\C-m"  'compile-goto-error))
 
 ;;;
 ;;; Inferior Erlang -- Run an Erlang shell as a subprocess.
@@ -5902,35 +5891,6 @@ Tab characters are counted by their visual width."
     (if (looking-at "[a-z0-9_]+")
         (match-string 0))))
 
-;; Aliases for backward compatibility with older versions of Erlang Mode.
-;;
-;; Unfortuantely, older versions of Emacs doesn't have `defalias' and
-;; `make-obsolete' so we have to define our own `obsolete' function.
-
-(defun erlang-obsolete (sym newdef)
-  "Make the obsolete function SYM refer to the defined function NEWDEF.
-
-Simplified version of a combination `defalias' and `make-obsolete',
-it assumes that NEWDEF is loaded."
-  (defalias sym (symbol-function newdef))
-  (make-obsolete sym newdef "long ago"))
-
-
-(erlang-obsolete 'calculate-erlang-indent 'erlang-calculate-indent)
-(erlang-obsolete 'calculate-erlang-stack-indent
-                 'erlang-calculate-stack-indent)
-(erlang-obsolete 'at-erlang-keyword 'erlang-at-keyword)
-(erlang-obsolete 'at-erlang-operator 'erlang-at-operator)
-(erlang-obsolete 'beginning-of-erlang-clause 'erlang-beginning-of-clause)
-(erlang-obsolete 'end-of-erlang-clause 'erlang-end-of-clause)
-(erlang-obsolete 'mark-erlang-clause 'erlang-mark-clause)
-(erlang-obsolete 'beginning-of-erlang-function 'erlang-beginning-of-function)
-(erlang-obsolete 'end-of-erlang-function 'erlang-end-of-function)
-(erlang-obsolete 'mark-erlang-function 'erlang-mark-function)
-(erlang-obsolete 'pass-over-erlang-clause 'erlang-pass-over-function)
-(erlang-obsolete 'name-of-erlang-function 'erlang-name-of-function)
-
-
 (defconst erlang-unload-hook
   (list (lambda ()
           (ad-unadvise 'Man-notify-when-ready)
diff --git a/lib/tools/src/eprof.erl b/lib/tools/src/eprof.erl
index 3ae899a078..535ddbcd04 100644
--- a/lib/tools/src/eprof.erl
+++ b/lib/tools/src/eprof.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. 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.
@@ -246,7 +246,7 @@ handle_call(profile_stop, _From, #state{ profiling = true } = S) ->
 
 %% logfile
 handle_call({logfile, File}, _From, #state{ fd = OldFd } = S) ->
-    case file:open(File, [write]) of
+    case file:open(File, [write, {encoding, utf8}]) of
 	{ok, Fd} ->
 	    case OldFd of
 		undefined -> ok;
@@ -478,11 +478,11 @@ string_bp_mfa([{Mfa, {Count, Time}}|Mfas], Tus, {MfaW, CountW, PercW, TimeW, TpC
 	Stpc   = s("~.2f", [divide(Time,Count)]),
 
 	string_bp_mfa(Mfas, Tus, {
-		erlang:max(MfaW,  length(Smfa)),
-		erlang:max(CountW,length(Scount)),
-		erlang:max(PercW, length(Sperc)),
-		erlang:max(TimeW, length(Stime)),
-		erlang:max(TpCW,  length(Stpc))
+		erlang:max(MfaW,  string:length(Smfa)),
+		erlang:max(CountW,string:length(Scount)),
+		erlang:max(PercW, string:length(Sperc)),
+		erlang:max(TimeW, string:length(Stime)),
+		erlang:max(TpCW,  string:length(Stpc))
 	    }, [[Smfa, Scount, Sperc, Stime, Stpc] | Strings]).
 
 print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
@@ -491,11 +491,11 @@ print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
     TnStr    = s(Tn),
     TusStr   = s(Tus),
     TuspcStr = s("~.2f", [divide(Tus,Tn)]),
-    Ws = {erlang:max(length("FUNCTION"), MfaW),
-          lists:max([length("CALLS"), CountW, length(TnStr)]),
-          erlang:max(length("      %"), PercW),
-          lists:max([length("TIME"), TimeW, length(TusStr)]),
-          lists:max([length("uS / CALLS"), TpCW, length(TuspcStr)])},
+    Ws = {erlang:max(string:length("FUNCTION"), MfaW),
+          lists:max([string:length("CALLS"), CountW, string:length(TnStr)]),
+          erlang:max(string:length("      %"), PercW),
+          lists:max([string:length("TIME"), TimeW, string:length(TusStr)]),
+          lists:max([string:length("uS / CALLS"), TpCW, string:length(TuspcStr)])},
     format(Fd, Ws, ["FUNCTION", "CALLS", "      %", "TIME", "uS / CALLS"]),
     format(Fd, Ws, ["--------", "-----", "-------", "----", "----------"]),
     lists:foreach(fun (String) -> format(Fd, Ws, String) end, Strs),
@@ -503,13 +503,13 @@ print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
     format(Fd, Ws, ["Total:", TnStr, "100.00%", TusStr, TuspcStr]),
     ok.
 
-s({M,F,A}) -> s("~w:~w/~w",[M,F,A]);
-s(Term) -> s("~p", [Term]).
+s({M,F,A}) -> s("~w:~tw/~w",[M,F,A]);
+s(Term) -> s("~tp", [Term]).
 s(Format, Terms) -> lists:flatten(io_lib:format(Format, Terms)).
 
 
 format(Fd, {MfaW, CountW, PercW, TimeW, TpCW}, Strings) ->
-    format(Fd, s("~~.~ps  ~~~ps  ~~~ps  ~~~ps  [~~~ps]~~n", [MfaW, CountW, PercW, TimeW, TpCW]), Strings);
+    format(Fd, s("~~.~wts  ~~~ws  ~~~ws  ~~~ws  [~~~ws]~~n", [MfaW, CountW, PercW, TimeW, TpCW]), Strings);
 format(undefined, Format, Strings) ->
     io:format(Format, Strings),
     ok;
diff --git a/lib/tools/src/fprof.erl b/lib/tools/src/fprof.erl
index 436f68d12b..2fe42beb03 100644
--- a/lib/tools/src/fprof.erl
+++ b/lib/tools/src/fprof.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.
@@ -1475,7 +1475,7 @@ info_suspect_call(GroupLeader, GroupLeader, _, _) ->
     ok;
 info_suspect_call(GroupLeader, _, Func, Pid) ->
     io:format(GroupLeader,
-	      "~nWarning: ~p called in ~p - trace may become corrupt!~n",
+	      "~nWarning: ~tp called in ~p - trace may become corrupt!~n",
 	      parsify([Func, Pid])).
 
 info(GroupLeader, GroupLeader, _, _) ->
@@ -1498,13 +1498,13 @@ dump_stack(Dump, Stack, Term) ->
 			{N, length(hd(Stack))}
 		end
 	end,
-     io:format(Dump, "~s~p.~n", [lists:duplicate(Depth, "  "), parsify(Term)]),
+     io:format(Dump, "~s~tp.~n", [lists:duplicate(Depth, "  "), parsify(Term)]),
     true.
 
 dump(undefined, _) ->
     false;
 dump(Dump, Term) ->
-    io:format(Dump, "~p.~n", [parsify(Term)]),
+    io:format(Dump, "~tp.~n", [parsify(Term)]),
     true.
 
 
@@ -2603,17 +2603,17 @@ println({Io, [W1, W2, W3, W4]}, Head,
 println({Io, _}, Head,
 	[],
 	Tail, Comment) ->
-    io:format(Io, "~s~s~s~n",
+    io:format(Io, "~s~ts~ts~n",
 	      [pad(Head, $ , 3), Tail, Comment]);
 println({Io, _}, Head,
 	{Tag, Term},
 	Tail, Comment) ->
-    io:format(Io, "~s~p, ~p~s~s~n",
+    io:format(Io, "~s~tp, ~tp~ts~ts~n",
 	      [pad(Head, $ , 3), parsify(Tag), parsify(Term), Tail, Comment]);
 println({Io, _}, Head,
 	Term,
 	Tail, Comment) ->
-    io:format(Io, "~s~p~s~s~n",
+    io:format(Io, "~s~tp~ts~ts~n",
 	      [pad(Head, $ , 3), parsify(Term), Tail, Comment]).
 
 
@@ -2720,7 +2720,7 @@ postsort_r([[_|C] | L], R) ->
 flat_format(F, Trailer) when is_float(F) ->
     lists:flatten([io_lib:format("~.3f", [F]), Trailer]);
 flat_format(W, Trailer) ->
-    lists:flatten([io_lib:format("~p", [W]), Trailer]).
+    lists:flatten([io_lib:format("~tp", [W]), Trailer]).
 
 %% Format, flatten, and pad.
 flat_format(Term, Trailer, Width) ->
diff --git a/lib/tools/src/xref_base.erl b/lib/tools/src/xref_base.erl
index 8d2cc07e40..3199b28acb 100644
--- a/lib/tools/src/xref_base.erl
+++ b/lib/tools/src/xref_base.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. 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.
@@ -405,21 +405,21 @@ analysis(exports_not_used, _) ->
     %% Local calls are not considered here. "X * UU" would do otherwise.
     "X - XU";
 analysis({call, F}, functions) ->
-    make_query("range (E | ~w : Fun)", [F]);
+    make_query("range (E | ~tw : Fun)", [F]);
 analysis({use, F}, functions) ->
-    make_query("domain (E || ~w : Fun)", [F]);
+    make_query("domain (E || ~tw : Fun)", [F]);
 analysis({module_call, M}, _) ->
-    make_query("range (ME | ~w : Mod)", [M]);
+    make_query("range (ME | ~tw : Mod)", [M]);
 analysis({module_use, M}, _) ->
-    make_query("domain (ME || ~w : Mod)", [M]);
+    make_query("domain (ME || ~tw : Mod)", [M]);
 analysis({application_call, A}, _) ->
-    make_query("range (AE | ~w : App)", [A]);
+    make_query("range (AE | ~tw : App)", [A]);
 analysis({application_use, A}, _) ->
-    make_query("domain (AE || ~w : App)", [A]);
+    make_query("domain (AE || ~tw : App)", [A]);
 analysis({release_call, R}, _) ->
-    make_query("range (RE | ~w : Rel)", [R]);
+    make_query("range (RE | ~tw : Rel)", [R]);
 analysis({release_use, R}, _) ->
-    make_query("domain (RE || ~w : Rel)", [R]);
+    make_query("domain (RE || ~tw : Rel)", [R]);
 analysis(deprecated_function_calls, functions) ->
     "XC || DF";
 analysis({deprecated_function_calls,Flag}, functions) ->
@@ -1833,9 +1833,9 @@ message(true, What, Arg) ->
 	unreadable ->
 	    io:format("Skipping ~ts (unreadable)~n", [Arg]);
 	xref_attr ->
-	    io:format("~ts: Skipping 'xref' attribute ~w~n", Arg);
+	    io:format("~ts: Skipping 'xref' attribute ~tw~n", Arg);
         depr_attr ->
-            io:format("~ts: Skipping 'deprecated' attribute ~w~n", Arg);
+            io:format("~ts: Skipping 'deprecated' attribute ~tw~n", Arg);
 	lib_search ->
 	    io:format("Scanning library path for BEAM files... ", []);
 	lib_check ->
diff --git a/lib/tools/src/xref_parser.yrl b/lib/tools/src/xref_parser.yrl
index 0711da79e2..5ee6419ff5 100644
--- a/lib/tools/src/xref_parser.yrl
+++ b/lib/tools/src/xref_parser.yrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. 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.
@@ -170,7 +170,7 @@ is_prefix_op('#') -> numeric;
 is_prefix_op(_) -> false.
 
 check_regexp(String) ->
-    case re:compile(String) of
+    case re:compile(String, [unicode]) of
 	{ok, _Expr} ->
 	    {regexpr, String};
 	{error, {ErrString, Position}} ->
@@ -274,7 +274,7 @@ mfa2s({M,F,A}) ->
     [c2s(M),':',c2s(F),'/',A].
 
 c2s(C) ->
-    [S] = io_lib:format("~p", [C]),
+    [S] = io_lib:format("~tp", [C]),
     list_to_atom(S).
 
 re(variable) -> ['_'];
diff --git a/lib/tools/src/xref_utils.erl b/lib/tools/src/xref_utils.erl
index b0c168e018..02e207d40c 100644
--- a/lib/tools/src/xref_utils.erl
+++ b/lib/tools/src/xref_utils.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. 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.
@@ -638,14 +638,14 @@ neighbours([], G, Fun, VT, L, _V, Vs) ->
     neighbours(Vs, G, Fun, VT, L).
 
 match_list(L, RExpr) ->
-    {ok, Expr} = re:compile(RExpr),
+    {ok, Expr} = re:compile(RExpr, [unicode]),
     filter(fun(E) -> match(E, Expr) end, L).
 
 match_one(VarL, Con, Col) ->
     select_each(VarL, fun(E) -> Con =:= element(Col, E) end).
 
 match_many(VarL, RExpr, Col) ->
-    {ok, Expr} = re:compile(RExpr),    
+    {ok, Expr} = re:compile(RExpr, [unicode]),
     select_each(VarL, fun(E) -> match(element(Col, E), Expr) end).
 
 match(I, Expr) when is_integer(I) ->
@@ -653,7 +653,12 @@ match(I, Expr) when is_integer(I) ->
     {match, [{0,length(S)}]} =:= re:run(S, Expr, [{capture, first}]);
 match(A, Expr) when is_atom(A) ->
     S = atom_to_list(A),
-    {match, [{0,length(S)}]} =:= re:run(S, Expr, [{capture, first}]).
+    case re:run(S, Expr, [{capture, first}]) of
+        {match, [{0,Size}]} ->
+            Size =:= byte_size(unicode:characters_to_binary(S));
+        _ ->
+            false
+    end.
 
 select_each([{Mod,Funs} | L], Pred) ->
     case filter(Pred, Funs) of
diff --git a/lib/tools/test/xref_SUITE.erl b/lib/tools/test/xref_SUITE.erl
index 057449d4a2..379a5c09ab 100644
--- a/lib/tools/test/xref_SUITE.erl
+++ b/lib/tools/test/xref_SUITE.erl
@@ -50,7 +50,8 @@
 
 -export([analyze/1, basic/1, md/1, q/1, variables/1, unused_locals/1]).
 
--export([format_error/1, otp_7423/1, otp_7831/1, otp_10192/1, otp_13708/1]).
+-export([format_error/1, otp_7423/1, otp_7831/1, otp_10192/1, otp_13708/1,
+         otp_14464/1]).
 
 -import(lists, [append/2, flatten/1, keysearch/3, member/2, sort/1, usort/1]).
 
@@ -81,8 +82,10 @@ groups() ->
        update, deprecated, trycatch, fun_mfa,
        fun_mfa_r14, fun_mfa_vars, qlc]},
      {analyses, [],
+
       [analyze, basic, md, q, variables, unused_locals]},
-     {misc, [], [format_error, otp_7423, otp_7831, otp_10192, otp_13708]}].
+     {misc, [], [format_error, otp_7423, otp_7831, otp_10192, otp_13708,
+                 otp_14464]}].
 
 
 init_per_suite(Conf) when is_list(Conf) ->
@@ -2396,7 +2399,6 @@ otp_10192(Conf) when is_list(Conf) ->
     xref:stop(s),
     ok.
 
-%% OTP-10192. Allow filenames with character codes greater than 126.
 otp_13708(Conf) when is_list(Conf) ->
     {ok, _} = start(s),
     ok = xref:set_default(s, [{verbose, true}]),
@@ -2409,6 +2411,36 @@ otp_13708(Conf) when is_list(Conf) ->
     ok = xref:set_library_path(s, [Dir], [{verbose, true}]),
     xref:stop(s).
 
+%% OTP-14464. Unicode atoms.
+otp_14464(Conf) when is_list(Conf) ->
+    Dir = ?copydir,
+
+    File1 = fname(Dir, "a.erl"),
+    MFile1 = fname(Dir, "a"),
+    Beam1 = fname(Dir, "a.beam"),
+    Test1 = "-module(a).
+             -export([ärlig/0, 'кlирилли́ческий атомB'/0]).
+
+              ärlig() ->
+                  'кlирилли́ческий атомB'.
+
+              'кlирилли́ческий атомB'() ->
+                  foo.
+             ",
+    ok = file:write_file(File1, unicode:characters_to_binary(Test1)),
+    {ok, a} = compile:file(File1, [debug_info,{outdir,Dir}]),
+
+    {ok, _} = xref:start(s),
+    {ok, a} = xref:add_module(s, MFile1),
+
+    {ok, [{a,ärlig,0}]} = xref:q(s, 'a:"ärlig"/0'),
+    {ok, [{a,'кlирилли́ческий атомB',0}]} =
+        xref:q(s, 'a:"кlирилли́ческий атомB"/0'),
+
+    xref:stop(s),
+    ok = file:delete(File1),
+    ok = file:delete(Beam1).
+
 %%%
 %%% Utilities
 %%%