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-rw-r--r--Makefile.in2
-rw-r--r--erts/emulator/Makefile.in3
-rw-r--r--erts/emulator/beam/erl_init.c30
-rw-r--r--erts/preloaded/ebin/erts_code_purger.beambin0 -> 1132 bytes
-rw-r--r--erts/preloaded/src/Makefile1
-rw-r--r--erts/preloaded/src/erts.app.src1
-rw-r--r--erts/preloaded/src/erts_code_purger.erl32
-rw-r--r--lib/kernel/test/init_SUITE.erl8
-rw-r--r--lib/sasl/src/systools_make.erl4
9 files changed, 76 insertions, 5 deletions
diff --git a/Makefile.in b/Makefile.in
index 7ce420a8d7..0360a61e0a 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -966,7 +966,7 @@ primary_bootstrap_copy:
# To remove modules left by the bootstrap building, but leave (restore)
# the modules in kernel which are needed for an emulator build
-KERNEL_PRELOAD = otp_ring0 init erl_prim_loader prim_inet prim_file zlib prim_zip erlang
+KERNEL_PRELOAD = otp_ring0 init erl_prim_loader prim_inet prim_file zlib prim_zip erlang erts_code_purger
KERNEL_PRELOAD_BEAMS=$(KERNEL_PRELOAD:%=$(BOOTSTRAP_TOP)/lib/kernel/ebin/%.beam)
start_scripts:
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 8cf435905b..f4b806fae9 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -591,6 +591,7 @@ ifeq ($(TARGET),win32)
PRELOAD_OBJ = $(OBJDIR)/beams.$(RES_EXT)
PRELOAD_SRC = $(TARGET)/beams.rc
$(PRELOAD_SRC): $(ERL_TOP)/erts/preloaded/ebin/otp_ring0.beam \
+ $(ERL_TOP)/erts/preloaded/ebin/erts_code_purger.beam \
$(ERL_TOP)/erts/preloaded/ebin/init.beam \
$(ERL_TOP)/erts/preloaded/ebin/prim_eval.beam \
$(ERL_TOP)/erts/preloaded/ebin/prim_inet.beam \
@@ -600,11 +601,13 @@ $(PRELOAD_SRC): $(ERL_TOP)/erts/preloaded/ebin/otp_ring0.beam \
$(ERL_TOP)/erts/preloaded/ebin/erl_prim_loader.beam \
$(ERL_TOP)/erts/preloaded/ebin/erlang.beam \
$(ERL_TOP)/erts/preloaded/ebin/erts_internal.beam
+
$(gen_verbose)LANG=C $(PERL) utils/make_preload $(MAKE_PRELOAD_EXTRA) -rc $^ > $@
else
PRELOAD_OBJ = $(OBJDIR)/preload.o
PRELOAD_SRC = $(TARGET)/preload.c
$(PRELOAD_SRC): $(ERL_TOP)/erts/preloaded/ebin/otp_ring0.beam \
+ $(ERL_TOP)/erts/preloaded/ebin/erts_code_purger.beam \
$(ERL_TOP)/erts/preloaded/ebin/init.beam \
$(ERL_TOP)/erts/preloaded/ebin/prim_eval.beam \
$(ERL_TOP)/erts/preloaded/ebin/prim_inet.beam \
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 58ef09662c..42aca726bf 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -439,6 +439,29 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
return res;
}
+static Eterm
+erl_system_process_otp(Eterm parent_pid, char* modname)
+{
+ Eterm start_mod;
+ Process* parent;
+ ErlSpawnOpts so;
+ Eterm res;
+
+ start_mod = erts_atom_put((byte *) modname, sys_strlen(modname), ERTS_ATOM_ENC_LATIN1, 1);
+ if (erts_find_function(start_mod, am_start, 0,
+ erts_active_code_ix()) == NULL) {
+ erl_exit(5, "No function %s:start/0\n", modname);
+ }
+
+ parent = erts_pid2proc(NULL, 0, parent_pid, ERTS_PROC_LOCK_MAIN);
+
+ so.flags = erts_default_spo_flags|SPO_SYSTEM_PROC;
+ res = erl_create_process(parent, start_mod, am_start, NIL, &so);
+ erts_smp_proc_unlock(parent, ERTS_PROC_LOCK_MAIN);
+ return res;
+}
+
+
Eterm
erts_preloaded(Process* p)
{
@@ -1234,6 +1257,7 @@ erl_start(int argc, char **argv)
ErtsTimeWarpMode time_warp_mode;
int node_tab_delete_delay = ERTS_NODE_TAB_DELAY_GC_DEFAULT;
ErtsDbSpinCount db_spin_count = ERTS_DB_SPNCNT_NORMAL;
+ Eterm otp_ring0_pid;
set_default_time_adj(&time_correction,
&time_warp_mode);
@@ -2183,8 +2207,10 @@ erl_start(int argc, char **argv)
erts_initialized = 1;
- (void) erl_first_process_otp("otp_ring0", NULL, 0,
- boot_argc, boot_argv);
+ otp_ring0_pid = erl_first_process_otp("otp_ring0", NULL, 0,
+ boot_argc, boot_argv);
+
+ (void) erl_system_process_otp(otp_ring0_pid, "erts_code_purger");
#ifdef ERTS_SMP
erts_start_schedulers();
diff --git a/erts/preloaded/ebin/erts_code_purger.beam b/erts/preloaded/ebin/erts_code_purger.beam
new file mode 100644
index 0000000000..176497b052
--- /dev/null
+++ b/erts/preloaded/ebin/erts_code_purger.beam
Binary files differ
diff --git a/erts/preloaded/src/Makefile b/erts/preloaded/src/Makefile
index 52034a0881..31383dda83 100644
--- a/erts/preloaded/src/Makefile
+++ b/erts/preloaded/src/Makefile
@@ -41,6 +41,7 @@ PRE_LOADED_ERL_MODULES = \
zlib \
prim_zip \
otp_ring0 \
+ erts_code_purger \
erlang \
erts_internal
diff --git a/erts/preloaded/src/erts.app.src b/erts/preloaded/src/erts.app.src
index 8442aaf7e8..e53b6e5bab 100644
--- a/erts/preloaded/src/erts.app.src
+++ b/erts/preloaded/src/erts.app.src
@@ -27,6 +27,7 @@
erts_internal,
init,
otp_ring0,
+ erts_code_purger,
prim_eval,
prim_file,
prim_inet,
diff --git a/erts/preloaded/src/erts_code_purger.erl b/erts/preloaded/src/erts_code_purger.erl
new file mode 100644
index 0000000000..1ef4d096b7
--- /dev/null
+++ b/erts/preloaded/src/erts_code_purger.erl
@@ -0,0 +1,32 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 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(erts_code_purger).
+
+%% Purpose : Implement system process erts_code_purger
+%% to handle code module purging.
+
+-export([start/0]).
+
+-spec start() -> term().
+start() ->
+ receive M ->
+ erlang:display({"erts_code_purger got msg", M})
+ end,
+ start().
diff --git a/lib/kernel/test/init_SUITE.erl b/lib/kernel/test/init_SUITE.erl
index 3fe618ea4c..f90eb69ef1 100644
--- a/lib/kernel/test/init_SUITE.erl
+++ b/lib/kernel/test/init_SUITE.erl
@@ -401,6 +401,7 @@ restart(Config) when is_list(Config) ->
%% Ok, the node is up, now the real test test begins.
?line erlang:monitor_node(Node, true),
?line InitPid = rpc:call(Node, erlang, whereis, [init]),
+ ?line PurgerPid = rpc:call(Node, erlang, whereis, [erts_code_purger]),
?line Procs = rpc:call(Node, erlang, processes, []),
?line MaxPid = lists:last(Procs),
?line ok = rpc:call(Node, init, restart, []),
@@ -418,8 +419,13 @@ restart(Config) when is_list(Config) ->
InitP = pid_to_list(InitPid),
?line InitP = pid_to_list(InitPid1),
+ %% and same purger process!
+ ?line PurgerPid1 = rpc:call(Node, erlang, whereis, [erts_code_purger]),
+ PurgerP = pid_to_list(PurgerPid),
+ ?line PurgerP = pid_to_list(PurgerPid1),
+
?line NewProcs0 = rpc:call(Node, erlang, processes, []),
- NewProcs = lists:delete(InitPid1, NewProcs0),
+ NewProcs = NewProcs0 -- [InitPid1, PurgerPid1],
?line case check_processes(NewProcs, MaxPid) of
true ->
ok;
diff --git a/lib/sasl/src/systools_make.erl b/lib/sasl/src/systools_make.erl
index 8132034172..d207dc15bb 100644
--- a/lib/sasl/src/systools_make.erl
+++ b/lib/sasl/src/systools_make.erl
@@ -1469,7 +1469,9 @@ mandatory_modules() ->
preloaded() ->
%% Sorted
- [erl_prim_loader,erlang,erts_internal,init,otp_ring0,prim_eval,prim_file,
+ [erl_prim_loader,erlang,
+ erts_code_purger,
+ erts_internal,init,otp_ring0,prim_eval,prim_file,
prim_inet,prim_zip,zlib].
%%______________________________________________________________________
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 08:10:04 +0000