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Diffstat (limited to 'erts/preloaded/src/erl_init.erl')
-rw-r--r-- | erts/preloaded/src/erl_init.erl | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/erts/preloaded/src/erl_init.erl b/erts/preloaded/src/erl_init.erl new file mode 100644 index 0000000000..6edead362c --- /dev/null +++ b/erts/preloaded/src/erl_init.erl @@ -0,0 +1,50 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2000-2016. 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. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(erl_init). + +%% Initial process of an Erlang system. + +-export([start/2]). + +%% This gets the module name given by the +i option (default 'init') +%% and the list of command line arguments + +-spec start(Mod, BootArgs) -> no_return() when + Mod :: module(), + BootArgs :: [binary()]. +start(Mod, BootArgs) -> + %% Load the static nifs + zlib:on_load(), + erl_tracer:on_load(), + prim_buffer:on_load(), + prim_file:on_load(), + socket:on_load(), + net:on_load(), + %% Proceed to the specified boot module + run(Mod, boot, BootArgs). + +run(M, F, A) -> + case erlang:function_exported(M, F, 1) of + false -> + erlang:display({fatal,error,module,M,"does not export",F,"/1"}), + halt(1); + true -> + M:F(A) + end. |