diff options
Diffstat (limited to 'lib/kernel/src/code.erl')
| -rw-r--r-- | lib/kernel/src/code.erl | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl index 9969021a6c..964ede9bc9 100644 --- a/lib/kernel/src/code.erl +++ b/lib/kernel/src/code.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. 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. @@ -19,6 +19,8 @@ %% -module(code). +-include_lib("kernel/include/logger.hrl"). + %% This is the interface module to the code server. It also contains %% some implementation details. See also related modules: code_*.erl %% in this directory. @@ -149,8 +151,11 @@ load_file(Mod) when is_atom(Mod) -> -spec ensure_loaded(Module) -> {module, Module} | {error, What} when Module :: module(), What :: embedded | badfile | nofile | on_load_failure. -ensure_loaded(Mod) when is_atom(Mod) -> - call({ensure_loaded,Mod}). +ensure_loaded(Mod) when is_atom(Mod) -> + case erlang:module_loaded(Mod) of + true -> {module, Mod}; + false -> call({ensure_loaded,Mod}) + end. %% XXX File as an atom is allowed only for backwards compatibility. -spec load_abs(Filename) -> load_ret() when @@ -627,7 +632,7 @@ do_par_recv(N, Good, Bad) -> call(Req) -> code_server:call(Req). --spec start_link() -> {'ok', pid()} | {'error', 'crash'}. +-spec start_link() -> {'ok', pid()}. start_link() -> do_start(). @@ -704,8 +709,20 @@ do_s(Lib) -> start_get_mode() -> case init:get_argument(mode) of - {ok,[["embedded"]]} -> - embedded; + {ok, [FirstMode | Rest]} -> + case Rest of + [] -> + ok; + _ -> + ?LOG_WARNING("Multiple -mode given to erl, using the first, ~p", + [FirstMode]) + end, + case FirstMode of + ["embedded"] -> + embedded; + _ -> + interactive + end; _ -> interactive end. |