drop deprecated HiPE compilation

Signed-off-by: Pierre Fenoll <pierrefenoll@gmail.com>

3 files changed, 1 insertions, 206 deletions

diff --git a/src/rabbit.erl b/src/rabbit.erl
index c0fde5beb6..83f9e4a02a 100644
--- a/src/rabbit.erl
+++ b/src/rabbit.erl
@@ -353,15 +353,7 @@ run_prelaunch_second_phase() ->
     %% 3. Logging.
     ok = rabbit_prelaunch_logging:setup(Context),
 
-    case IsInitialPass of
-        true ->
-            %% 4. HiPE compilation.
-            ok = rabbit_prelaunch_hipe:setup(Context);
-        false ->
-            ok
-    end,
-
-    %% 5. Clustering.
+    %% 4. Clustering.
     ok = rabbit_prelaunch_cluster:setup(Context),
 
     %% Start Mnesia now that everything is ready.
diff --git a/src/rabbit_hipe.erl b/src/rabbit_hipe.erl
deleted file mode 100644
index eb167fc828..0000000000
--- a/src/rabbit_hipe.erl
+++ /dev/null
@@ -1,171 +0,0 @@
-%% The contents of this file are subject to the Mozilla Public License
-%% Version 1.1 (the "License"); you may not use this file except in
-%% compliance with the License. You may obtain a copy of the License
-%% at https://www.mozilla.org/MPL/
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and
-%% limitations under the License.
-%%
-%% The Original Code is RabbitMQ.
-%%
-%% The Initial Developer of the Original Code is GoPivotal, Inc.
-%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates.  All rights reserved.
-%%
-
--module(rabbit_hipe).
-
-%% HiPE compilation uses multiple cores anyway, but some bits are
-%% IO-bound so we can go faster if we parallelise a bit more. In
-%% practice 2 processes seems just as fast as any other number > 1,
-%% and keeps the progress bar realistic-ish.
--define(HIPE_PROCESSES, 2).
-
--export([maybe_hipe_compile/0, log_hipe_result/1]).
--export([compile_to_directory/1]).
--export([can_hipe_compile/0]).
-
-%% Compile and load during server startup sequence
-maybe_hipe_compile() ->
-    {ok, Want} = application:get_env(rabbit, hipe_compile),
-    case {Want, can_hipe_compile()} of
-        {true,  true}  -> hipe_compile();
-        {true,  false} -> false;
-        {false, _}     -> {ok, disabled}
-    end.
-
-log_hipe_result({ok, disabled}) ->
-    rabbit_log_prelaunch:info(
-      "HiPE disabled: no modules were natively recompiled.~n", []);
-log_hipe_result({ok, already_compiled}) ->
-    rabbit_log_prelaunch:info(
-      "HiPE in use: modules already natively compiled.~n", []);
-log_hipe_result({ok, Count, Duration}) ->
-    rabbit_log_prelaunch:info(
-      "HiPE in use: compiled ~B modules in ~Bs.~n", [Count, Duration]);
-log_hipe_result(false) ->
-    io:format(
-      "~nNot HiPE compiling: HiPE not found in this Erlang installation.~n"),
-    rabbit_log_prelaunch:warning(
-      "Not HiPE compiling: HiPE not found in this Erlang installation.~n").
-
-hipe_compile() ->
-    hipe_compile(fun compile_and_load/1, false).
-
-compile_to_directory(Dir0) ->
-    Dir = rabbit_file:filename_as_a_directory(rabbit_data_coercion:to_list(Dir0)),
-    case prepare_ebin_directory(Dir) of
-        ok ->
-            hipe_compile(fun (Mod) -> compile_and_save(Mod, Dir) end, true);
-        {error, Err} ->
-            {error, Err}
-    end.
-
-needs_compilation(Mod, Force) ->
-    Exists = code:which(Mod) =/= non_existing,
-    %% We skip modules already natively compiled. This
-    %% happens when RabbitMQ is stopped (just the
-    %% application, not the entire node) and started
-    %% again.
-    NotYetCompiled = not already_hipe_compiled(Mod),
-    NotVersioned = not compiled_with_version_support(Mod),
-    Exists andalso (Force orelse (NotYetCompiled andalso NotVersioned)).
-
-%% HiPE compilation happens before we have log handlers and can take a
-%% long time, so make an exception to our no-stdout policy and display
-%% progress via stdout.
-hipe_compile(CompileFun, Force) ->
-    {ok, HipeModulesAll} = application:get_env(rabbit, hipe_modules),
-    HipeModules = lists:filter(fun(Mod) -> needs_compilation(Mod, Force) end, HipeModulesAll),
-    case HipeModules of
-        [] -> {ok, already_compiled};
-        _  -> do_hipe_compile(HipeModules, CompileFun)
-    end.
-
-already_hipe_compiled(Mod) ->
-    try
-    %% OTP 18.x or later
-        Mod:module_info(native) =:= true
-    %% OTP prior to 18.x
-    catch error:badarg ->
-        code:is_module_native(Mod) =:= true
-    end.
-
-compiled_with_version_support(Mod) ->
-    proplists:get_value(erlang_version_support, Mod:module_info(attributes))
-        =/= undefined.
-
-do_hipe_compile(HipeModules, CompileFun) ->
-    Count = length(HipeModules),
-    io:format("~nHiPE compiling:  |~s|~n                 |",
-              [string:copies("-", Count)]),
-    T1 = erlang:monotonic_time(),
-    %% We use code:get_object_code/1 below to get the beam binary,
-    %% instead of letting hipe get it itself, because hipe:c/{1,2}
-    %% expects the given filename to actually exist on disk: it does not
-    %% work with an EZ archive (rabbit_common is one).
-    %%
-    %% Then we use the mode advanced hipe:compile/4 API because the
-    %% simpler hipe:c/3 is not exported (as of Erlang 18.1.4). This
-    %% advanced API does not load automatically the code, except if the
-    %% 'load' option is set.
-    PidMRefs = [spawn_monitor(fun () -> [begin
-                                             CompileFun(M),
-                                             io:format("#")
-                                         end || M <- Ms]
-                              end) ||
-                   Ms <- split(HipeModules, ?HIPE_PROCESSES)],
-    [receive
-         {'DOWN', MRef, process, _, normal} -> ok;
-         {'DOWN', MRef, process, _, Reason} -> exit(Reason)
-     end || {_Pid, MRef} <- PidMRefs],
-    T2 = erlang:monotonic_time(),
-    Duration = erlang:convert_time_unit(T2 - T1, native, seconds),
-    io:format("|~n~nCompiled ~B modules in ~Bs~n", [Count, Duration]),
-    {ok, Count, Duration}.
-
-split(L, N) -> split0(L, [[] || _ <- lists:seq(1, N)]).
-
-split0([],       Ls)       -> Ls;
-split0([I | Is], [L | Ls]) -> split0(Is, Ls ++ [[I | L]]).
-
-prepare_ebin_directory(Dir) ->
-    case rabbit_file:ensure_dir(Dir) of
-        ok ->
-            ok = delete_beam_files(Dir),
-            ok;
-        {error, eperm} ->
-            {error, eperm}
-    end.
-
-delete_beam_files(Dir) ->
-    {ok, Files} = file:list_dir(Dir),
-    lists:foreach(fun(File) ->
-                          case filename:extension(File) of
-                              ".beam" ->
-                                  ok = file:delete(filename:join([Dir, File]));
-                              _ ->
-                                  ok
-                          end
-                  end,
-                  Files).
-
-compile_and_load(Mod) ->
-    {Mod, Beam, _} = code:get_object_code(Mod),
-    {ok, _} = hipe:compile(Mod, [], Beam, [o3, load]).
-
-compile_and_save(Module, Dir) ->
-    {Module, BeamCode, _} = code:get_object_code(Module),
-    BeamName = filename:join([Dir, atom_to_list(Module) ++ ".beam"]),
-    {ok, {Architecture, NativeCode}} = hipe:compile(Module, [], BeamCode, [o3]),
-    {ok, _, Chunks0} = beam_lib:all_chunks(BeamCode),
-    ChunkName = hipe_unified_loader:chunk_name(Architecture),
-    Chunks1 = lists:keydelete(ChunkName, 1, Chunks0),
-    Chunks = Chunks1 ++ [{ChunkName,NativeCode}],
-    {ok, BeamPlusNative} = beam_lib:build_module(Chunks),
-    ok = file:write_file(BeamName, BeamPlusNative),
-    BeamName.
-
-can_hipe_compile() ->
-    code:which(hipe) =/= non_existing.
diff --git a/src/rabbit_prelaunch_hipe.erl b/src/rabbit_prelaunch_hipe.erl
deleted file mode 100644
index 9357368c07..0000000000
--- a/src/rabbit_prelaunch_hipe.erl
+++ /dev/null
@@ -1,26 +0,0 @@
-%% The contents of this file are subject to the Mozilla Public License
-%% Version 1.1 (the "License"); you may not use this file except in
-%% compliance with the License. You may obtain a copy of the License
-%% at https://www.mozilla.org/MPL/
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and
-%% limitations under the License.
-%%
-%% The Original Code is RabbitMQ.
-%%
-%% The Initial Developer of the Original Code is GoPivotal, Inc.
-%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates.  All rights reserved.
-%%
-
--module(rabbit_prelaunch_hipe).
-
--export([setup/1]).
-
-setup(_Context) ->
-    rabbit_log_prelaunch:debug(""),
-    rabbit_log_prelaunch:debug("== HiPE compitation =="),
-    HipeResult = rabbit_hipe:maybe_hipe_compile(),
-    rabbit_hipe:log_hipe_result(HipeResult),
-    ok.