Merge branch 'maint'

5 files changed, 156 insertions, 3 deletions

diff --git a/erts/preloaded/src/.gitignore b/erts/preloaded/src/.gitignore
new file mode 100644
index 0000000000..e4658fe142
--- /dev/null
+++ b/erts/preloaded/src/.gitignore
@@ -0,0 +1 @@
+prim_eval.abstr
diff --git a/erts/preloaded/src/Makefile b/erts/preloaded/src/Makefile
index a224b6a5d4..f53809e765 100644
--- a/erts/preloaded/src/Makefile
+++ b/erts/preloaded/src/Makefile
@@ -32,7 +32,7 @@ STATIC_EBIN=../ebin
 include $(ERL_TOP)/erts/vsn.mk
 include $(ERL_TOP)/lib/kernel/vsn.mk
 
-PRE_LOADED_MODULES = \
+PRE_LOADED_ERL_MODULES = \
 	erl_prim_loader \
 	init \
 	prim_file \
@@ -43,10 +43,17 @@ PRE_LOADED_MODULES = \
 	erlang \
 	erts_internal
 
+PRE_LOADED_BEAM_MODULES = \
+	prim_eval
+
+PRE_LOADED_MODULES = $(PRE_LOADED_ERL_MODULES) $(PRE_LOADED_BEAM_MODULES)
+
 RELSYSDIR = $(RELEASE_PATH)/lib/erts-$(VSN)
 # not $(RELEASE_PATH)/erts-$(VSN)/preloaded
 
-ERL_FILES= $(PRE_LOADED_MODULES:%=%.erl) 
+ERL_FILES= $(PRE_LOADED_ERL_MODULES:%=%.erl)
+BEAM_FILES= $(PRE_LOADED_BEAM_MODULES:%=%.S)
+STUBS_FILES= $(PRE_LOADED_BEAM_MODULES:%=%.erl)
 
 TARGET_FILES = $(PRE_LOADED_MODULES:%=$(EBIN)/%.$(EMULATOR))
 STATIC_TARGET_FILES = $(PRE_LOADED_MODULES:%=$(STATIC_EBIN)/%.$(EMULATOR))
@@ -70,7 +77,7 @@ include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_spec: 
 	$(INSTALL_DIR) "$(RELSYSDIR)/src"
-	$(INSTALL_DATA) $(ERL_FILES) "$(RELSYSDIR)/src"
+	$(INSTALL_DATA) $(ERL_FILES) $(BEAM_FILES) $(STUBS_FILES) "$(RELSYSDIR)/src"
 	$(INSTALL_DIR) "$(RELSYSDIR)/ebin"
 	$(INSTALL_DATA) $(STATIC_TARGET_FILES) "$(RELSYSDIR)/ebin"
 
@@ -80,6 +87,19 @@ release_docs_spec:
 list_preloaded:
 	@echo $(PRE_LOADED_MODULES)
 
+#
+# Combine a BEAM assembly script file a stub Erlang file into a BEAM file.
+# See add_abstract_chunk script.
+#
+
+prim_eval.abstr: prim_eval.erl
+	$(V_ERLC) $(ERL_COMPILE_FLAGS) -o$(dir $@) +dabstr $<
+
+prim_eval.beam: prim_eval.S prim_eval.abstr
+	$(gen_verbose)
+	$(V_at)$(ERLC) $(ERL_COMPILE_FLAGS) $<
+	$(V_at)escript add_abstract_code $@ prim_eval.abstr || (rm $@; exit 1)
+
 # Include dependencies -- list below added by PaN
 $(EBIN)/erl_prim_loader.beam: $(KERNEL_SRC)/inet_boot.hrl $(KERNEL_INCLUDE)/file.hrl
 $(EBIN)/prim_file.beam: $(KERNEL_INCLUDE)/file.hrl
diff --git a/erts/preloaded/src/add_abstract_code b/erts/preloaded/src/add_abstract_code
new file mode 100644
index 0000000000..e670156d21
--- /dev/null
+++ b/erts/preloaded/src/add_abstract_code
@@ -0,0 +1,34 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% 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.
+%%
+%% %CopyrightEnd%
+%%
+
+-mode(compile).
+
+-export([main/1]).
+
+main([BeamFile,AbstrFile]) ->
+    {ok,_,Chunks0} = beam_lib:all_chunks(BeamFile),
+    {ok,Abstr} = file:consult(AbstrFile),
+    Chunks = lists:keyreplace("Abst", 1, Chunks0,
+			      {"Abst",term_to_binary({raw_abstract_v1,Abstr})}),
+    {ok,Module} = beam_lib:build_module(Chunks),
+    ok = file:write_file(BeamFile, Module),
+    init:stop().
diff --git a/erts/preloaded/src/prim_eval.S b/erts/preloaded/src/prim_eval.S
new file mode 100644
index 0000000000..958a79a1da
--- /dev/null
+++ b/erts/preloaded/src/prim_eval.S
@@ -0,0 +1,70 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% 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.
+%%
+%% %CopyrightEnd%
+%%
+{module, prim_eval}.
+
+%% This module uses low-level BEAM instructions for the message queue facility
+%% to allow erl_eval to evaluate receive expressions correctly.
+
+{exports, [{'receive',2},{module_info,0},{module_info,1}]}.
+
+{attributes, []}.
+
+{labels, 10}.
+
+
+{function, 'receive', 2, 2}.
+  {label,1}.
+    {func_info,{atom,prim_eval},{atom,'receive'},2}.
+  {label,2}.
+    {allocate,2,2}.
+    {move,{x,1},{y,0}}.
+    {move,{x,0},{y,1}}.
+  {label,3}.
+    {loop_rec,{f,5},{x,0}}.
+    {move,{y,1},{x,1}}.
+    {call_fun,1}.
+    {test,is_ne_exact,{f,4},[{x,0},{atom,nomatch}]}.
+    remove_message.
+    {deallocate,2}.
+    return.
+  {label,4}.
+    {loop_rec_end,{f,3}}.
+  {label,5}.
+    {wait_timeout,{f,3},{y,0}}.
+    timeout.
+    {move,{atom,timeout},{x,0}}.
+    {deallocate,2}.
+    return.
+
+
+{function, module_info, 0, 8}.
+  {label,6}.
+    {func_info,{atom,prim_eval},{atom,module_info},0}.
+  {label,7}.
+    {move,{atom,prim_eval},{x,0}}.
+    {call_ext_only,1,{extfunc,erlang,get_module_info,1}}.
+
+
+{function, module_info, 1, 10}.
+  {label,8}.
+    {func_info,{atom,prim_eval},{atom,module_info},1}.
+  {label,9}.
+    {move,{x,0},{x,1}}.
+    {move,{atom,prim_eval},{x,0}}.
+    {call_ext_only,2,{extfunc,erlang,get_module_info,2}}.
diff --git a/erts/preloaded/src/prim_eval.erl b/erts/preloaded/src/prim_eval.erl
new file mode 100644
index 0000000000..ec5af8c138
--- /dev/null
+++ b/erts/preloaded/src/prim_eval.erl
@@ -0,0 +1,28 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% 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.
+%%
+%% %CopyrightEnd%
+%%
+-module(prim_eval).
+
+%% This module is simply a stub which abstract code gets included in the result
+%% of compilation of prim_eval.S, to keep Dialyzer happy.
+
+-export(['receive'/2]).
+
+-spec 'receive'(fun((term()) -> nomatch | T), timeout()) -> T.
+'receive'(_, _) ->
+    erlang:nif_error(stub).