From c70ca686fe269db6079a2ca1c7e09cdfc0cfa903 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Mon, 5 Sep 2016 16:16:23 +0200 Subject: Don't leak old code when loading a modules with an on_load function Normally, calling code:delete/1 before re-loading the code for a module is unnecessary but causes no problem. But there will be be problems if the new code has an on_load function. Code with an on_load function will always be loaded as old code to allowed it to be easily purged if the on_load function would fail. If the on_load function succeeds, the old and current code will be swapped. So in the scenario where code:delete/1 has been called explicitly, there is old code but no current code. Loading code with an on_load function will cause the reference to the old code to be overwritten. That will at best cause a memory leak, and at worst an emulator crash (especially if NIFs are involved). To avoid that situation, we will put the code with the on_load function in a special, third slot in Module. ERL-240 --- erts/emulator/beam/atom.names | 1 + erts/emulator/beam/beam_bif_load.c | 62 +++++++++++++++++++++++------- erts/emulator/beam/beam_load.c | 15 ++++++-- erts/emulator/beam/erl_nif.c | 18 +++++---- erts/emulator/beam/module.c | 3 ++ erts/emulator/beam/module.h | 1 + erts/preloaded/ebin/erts_code_purger.beam | Bin 11168 -> 12068 bytes erts/preloaded/ebin/erts_internal.beam | Bin 11116 -> 11104 bytes erts/preloaded/src/erts_code_purger.erl | 37 +++++++++++++++++- erts/preloaded/src/erts_internal.erl | 2 +- 10 files changed, 113 insertions(+), 26 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names index 9dae67cb2d..2b66bf6f4e 100644 --- a/erts/emulator/beam/atom.names +++ b/erts/emulator/beam/atom.names @@ -505,6 +505,7 @@ atom port_limit atom port_op atom positive atom prepare +atom prepare_on_load atom print atom priority atom private diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c index dddcfbb77d..5969197168 100644 --- a/erts/emulator/beam/beam_bif_load.c +++ b/erts/emulator/beam/beam_bif_load.c @@ -53,6 +53,7 @@ static struct { ErlFunEntry *def_funs[10]; Uint fe_size; Uint fe_ix; + struct erl_module_instance saved_old; } purge_state; Process *erts_code_purger = NULL; @@ -105,6 +106,8 @@ init_purge_state(void) purge_state.fe_size = sizeof(purge_state.def_funs); purge_state.fe_size /= sizeof(purge_state.def_funs[0]); purge_state.fe_ix = 0; + + purge_state.saved_old.code_hdr = 0; } void @@ -739,10 +742,13 @@ BIF_RETTYPE call_on_load_function_1(BIF_ALIST_1) { Module* modp = erts_get_module(BIF_ARG_1, erts_active_code_ix()); - if (modp && modp->old.code_hdr) { - BIF_TRAP_CODE_PTR_0(BIF_P, modp->old.code_hdr->on_load_function_ptr); + if (!modp || !modp->on_load) { + BIF_ERROR(BIF_P, BADARG); } - else { + if (modp->on_load->code_hdr) { + BIF_TRAP_CODE_PTR_0(BIF_P, + modp->on_load->code_hdr->on_load_function_ptr); + } else { BIF_ERROR(BIF_P, BADARG); } } @@ -765,14 +771,14 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2) code_ix = erts_active_code_ix(); modp = erts_get_module(BIF_ARG_1, code_ix); - if (!modp || !modp->old.code_hdr) { + if (!modp || !modp->on_load || !modp->on_load->code_hdr) { error: erts_smp_thr_progress_unblock(); erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); erts_release_code_write_permission(); BIF_ERROR(BIF_P, BADARG); } - if (modp->old.code_hdr->on_load_function_ptr == NULL) { + if (modp->on_load->code_hdr->on_load_function_ptr == NULL) { goto error; } if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) { @@ -781,14 +787,17 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2) if (BIF_ARG_2 == am_true) { int i; - struct erl_module_instance t; /* - * Swap old and new code. + * Make the code with the on_load function current. */ - t = modp->curr; - modp->curr = modp->old; - modp->old = t; + + if (modp->curr.code_hdr) { + modp->old = modp->curr; + } + modp->curr = *modp->on_load; + erts_free(ERTS_ALC_T_PREPARED_CODE, modp->on_load); + modp->on_load = 0; /* * The on_load function succeded. Fix up export entries. @@ -1731,7 +1740,8 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2) switch (BIF_ARG_2) { - case am_prepare: { + case am_prepare: + case am_prepare_on_load: { /* * Prepare for purge by marking all fun * entries referring to the code to purge @@ -1756,7 +1766,22 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2) /* * Any code to purge? */ - erts_rlock_old_code(code_ix); + + if (BIF_ARG_2 == am_prepare_on_load) { + erts_rwlock_old_code(code_ix); + } else { + erts_rlock_old_code(code_ix); + } + + if (BIF_ARG_2 == am_prepare_on_load) { + ASSERT(modp->on_load); + ASSERT(modp->on_load->code_hdr); + purge_state.saved_old = modp->old; + modp->old = *modp->on_load; + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) modp->on_load); + modp->on_load = 0; + } + if (!modp->old.code_hdr) res = am_false; else { @@ -1774,7 +1799,12 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2) ERTS_SET_COPY_LITERAL_AREA(modp->old.code_hdr->literal_area); #endif } - erts_runlock_old_code(code_ix); + + if (BIF_ARG_2 == am_prepare_on_load) { + erts_rwunlock_old_code(code_ix); + } else { + erts_runlock_old_code(code_ix); + } } #ifndef ERTS_SMP @@ -1911,8 +1941,14 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2) modp->old.code_length = 0; modp->old.catches = BEAM_CATCHES_NIL; erts_remove_from_ranges(code); + ERTS_BIF_PREP_RET(ret, am_true); } + + if (purge_state.saved_old.code_hdr) { + modp->old = purge_state.saved_old; + purge_state.saved_old.code_hdr = 0; + } erts_rwunlock_old_code(code_ix); } if (is_blocking) { diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index f63addb309..0afdedf6c2 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -833,11 +833,20 @@ erts_finish_loading(Binary* magic, Process* c_p, size = stp->loaded_size; erts_total_code_size += size; - if (stp->on_load) { - inst_p = &mod_tab_p->old; - } else { + + if (!stp->on_load) { inst_p = &mod_tab_p->curr; + } else { + mod_tab_p->on_load = + (struct erl_module_instance *) + erts_alloc(ERTS_ALC_T_PREPARED_CODE, + sizeof(struct erl_module_instance)); + inst_p = mod_tab_p->on_load; + inst_p->nif = 0; + inst_p->num_breakpoints = 0; + inst_p->num_traced_exports = 0; } + inst_p->code_hdr = stp->hdr; inst_p->code_length = size; diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 559b4017e7..3a547982da 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -3203,18 +3203,20 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) if (init_func != NULL) handle = init_func; + this_mi = &module_p->curr; + prev_mi = &module_p->old; if (in_area(caller, module_p->old.code_hdr, module_p->old.code_length)) { - if (module_p->old.code_hdr->on_load_function_ptr) { - this_mi = &module_p->old; + ret = load_nif_error(BIF_P, "old_code", "Calling load_nif from old " + "module '%T' not allowed", mod_atom); + goto error; + } else if (module_p->on_load) { + ASSERT(module_p->on_load->code_hdr->on_load_function_ptr); + if (module_p->curr.code_hdr) { prev_mi = &module_p->curr; } else { - ret = load_nif_error(BIF_P, "old_code", "Calling load_nif from old " - "module '%T' not allowed", mod_atom); - goto error; + prev_mi = &module_p->old; } - } else { - this_mi = &module_p->curr; - prev_mi = &module_p->old; + this_mi = module_p->on_load; } if (init_func == NULL && diff --git a/erts/emulator/beam/module.c b/erts/emulator/beam/module.c index 3eb11f1693..4f36377450 100644 --- a/erts/emulator/beam/module.c +++ b/erts/emulator/beam/module.c @@ -85,6 +85,7 @@ static Module* module_alloc(Module* tmpl) obj->old.num_breakpoints = 0; obj->curr.num_traced_exports = 0; obj->old.num_traced_exports = 0; + obj->on_load = 0; return obj; } @@ -201,6 +202,7 @@ void module_start_staging(void) dst_mod->curr = src_mod->curr; dst_mod->old = src_mod->old; + dst_mod->on_load = src_mod->on_load; } /* @@ -214,6 +216,7 @@ void module_start_staging(void) dst_mod->curr = src_mod->curr; dst_mod->old = src_mod->old; + dst_mod->on_load = src_mod->on_load; } newsz = index_table_sz(dst); erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz)); diff --git a/erts/emulator/beam/module.h b/erts/emulator/beam/module.h index 5a60bc90d9..1c1afc8461 100644 --- a/erts/emulator/beam/module.h +++ b/erts/emulator/beam/module.h @@ -39,6 +39,7 @@ typedef struct erl_module { struct erl_module_instance curr; struct erl_module_instance old; /* protected by "old_code" rwlock */ + struct erl_module_instance* on_load; } Module; Module* erts_get_module(Eterm mod, ErtsCodeIndex code_ix); diff --git a/erts/preloaded/ebin/erts_code_purger.beam b/erts/preloaded/ebin/erts_code_purger.beam index a1eb126098..6956eee740 100644 Binary files a/erts/preloaded/ebin/erts_code_purger.beam and b/erts/preloaded/ebin/erts_code_purger.beam differ diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam index 22817be8f4..227b62b7d3 100644 Binary files a/erts/preloaded/ebin/erts_internal.beam and b/erts/preloaded/ebin/erts_internal.beam differ diff --git a/erts/preloaded/src/erts_code_purger.erl b/erts/preloaded/src/erts_code_purger.erl index ee4fcedd2d..28d71fd07e 100644 --- a/erts/preloaded/src/erts_code_purger.erl +++ b/erts/preloaded/src/erts_code_purger.erl @@ -22,7 +22,8 @@ %% Purpose : Implement system process erts_code_purger %% to handle code module purging. --export([start/0, purge/1, soft_purge/1, pending_purge_lambda/3]). +-export([start/0, purge/1, soft_purge/1, pending_purge_lambda/3, + finish_after_on_load/2]). -spec start() -> term(). start() -> @@ -40,6 +41,11 @@ loop() -> Res = do_soft_purge(Mod), From ! {reply, soft_purge, Res, Ref}; + {finish_after_on_load,{Mod,Keep},From,Ref} + when is_atom(Mod), is_pid(From) -> + Res = do_finish_after_on_load(Mod, Keep), + From ! {reply, finish_after_on_load, Res, Ref}; + {test_purge, Mod, From, Type, Ref} when is_atom(Mod), is_pid(From) -> do_test_purge(Mod, From, Type, Ref); @@ -129,6 +135,35 @@ do_soft_purge(Mod) -> end) end. +%% finish_after_on_load(Module, Keep) +%% Finish after running on_load function. If Keep is false, +%% purge the code for the on_load function. + +finish_after_on_load(Mod, Keep) -> + Ref = make_ref(), + erts_code_purger ! {finish_after_on_load, {Mod,Keep}, self(), Ref}, + receive + {reply, finish_after_on_load, Result, Ref} -> + Result + end. + +do_finish_after_on_load(Mod, Keep) -> + erlang:finish_after_on_load(Mod, Keep), + case Keep of + true -> + ok; + false -> + case erts_internal:purge_module(Mod, prepare_on_load) of + false -> + true; + true -> + _ = check_proc_code(erlang:processes(), Mod, true), + true = erts_internal:purge_module(Mod, complete) + end + end. + + + %% %% check_proc_code(Pids, Mod, Hard) - Send asynchronous %% requests to all processes to perform a check_process_code diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl index 6229754c8c..6aae5ba38c 100644 --- a/erts/preloaded/src/erts_internal.erl +++ b/erts/preloaded/src/erts_internal.erl @@ -304,7 +304,7 @@ release_literal_area_switch() -> -spec purge_module(Module, Op) -> boolean() when Module :: module(), - Op :: 'prepare' | 'abort' | 'complete'. + Op :: 'prepare' | 'prepare_on_load' | 'abort' | 'complete'. purge_module(_Module, _Op) -> erlang:nif_error(undefined). -- cgit v1.2.3 From 314cbf6d2d4fb356dad6f985f76b220052a97f28 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Tue, 6 Sep 2016 17:40:02 +0200 Subject: erts: Improve nif_SUITE:upgrade test to include upgrade from deleted (old) module instance --- erts/emulator/test/nif_SUITE.erl | 53 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 51 insertions(+), 2 deletions(-) (limited to 'erts') diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index 8df2733fac..b5adf2ef7a 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -174,11 +174,33 @@ upgrade(Config) when is_list(Config) -> true = erlang:delete_module(nif_mod), [] = nif_mod_call_history(), + %% Repeat upgrade again but from old (deleted) instance + {module,nif_mod} = erlang:load_module(nif_mod,Bin), + undefined = nif_mod:lib_version(), + 1 = call(Pid,lib_version), + [{lib_version,1,9,109}] = nif_mod_call_history(), + + ok = nif_mod:load_nif_lib(Config, 1), + 1 = nif_mod:lib_version(), + [{upgrade,1,10,110},{lib_version,1,11,111}] = nif_mod_call_history(), + + upgraded = call(Pid,upgrade), + false = check_process_code(Pid, nif_mod), + true = erlang:purge_module(nif_mod), + [{unload,1,12,112}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + [{lib_version,1,13,113}] = nif_mod_call_history(), + + true = erlang:delete_module(nif_mod), + [] = nif_mod_call_history(), + + Pid ! die, {'DOWN', MRef, process, Pid, normal} = receive_any(), false = check_process_code(Pid, nif_mod), true = erlang:purge_module(nif_mod), - [{unload,1,9,109}] = nif_mod_call_history(), + [{unload,1,14,114}] = nif_mod_call_history(), %% Module upgrade with different lib version {module,nif_mod} = erlang:load_module(nif_mod,Bin), @@ -215,11 +237,38 @@ upgrade(Config) when is_list(Config) -> true = erlang:delete_module(nif_mod), [] = nif_mod_call_history(), + + %% Reverse upgrade but from old (deleted) instance + {module,nif_mod} = erlang:load_module(nif_mod,Bin), + undefined = nif_mod:lib_version(), + [] = nif_mod_call_history(), + 2 = call(Pid2,lib_version), + [{lib_version,2,4,204}] = nif_mod_call_history(), + + ok = nif_mod:load_nif_lib(Config, 1), + 1 = nif_mod:lib_version(), + [{upgrade,1,1,101},{lib_version,1,2,102}] = nif_mod_call_history(), + + 2 = call(Pid2,lib_version), + [{lib_version,2,5,205}] = nif_mod_call_history(), + + upgraded = call(Pid2,upgrade), + false = check_process_code(Pid2, nif_mod), + true = erlang:purge_module(nif_mod), + [{unload,2,6,206}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + [{lib_version,1,3,103}] = nif_mod_call_history(), + + true = erlang:delete_module(nif_mod), + [] = nif_mod_call_history(), + + Pid2 ! die, {'DOWN', MRef2, process, Pid2, normal} = receive_any(), false= check_process_code(Pid2, nif_mod), true = erlang:purge_module(nif_mod), - [{unload,2,4,204}] = nif_mod_call_history(), + [{unload,1,4,104}] = nif_mod_call_history(), true = lists:member(?MODULE, erlang:system_info(taints)), true = lists:member(nif_mod, erlang:system_info(taints)), -- cgit v1.2.3 From 359e05121dab023585715b0e42506afd94f2e1f1 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Wed, 7 Sep 2016 17:11:03 +0200 Subject: erts: Add nif_SUITE:t_on_load --- erts/emulator/test/nif_SUITE.erl | 137 ++++++++++++++++++++++++++ erts/emulator/test/nif_SUITE_data/nif_mod.erl | 10 ++ 2 files changed, 147 insertions(+) (limited to 'erts') diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index b5adf2ef7a..9c1694fa8a 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -29,6 +29,7 @@ -export([all/0, suite/0, init_per_testcase/2, end_per_testcase/2, basic/1, reload/1, upgrade/1, heap_frag/1, + t_on_load/1, types/1, many_args/1, binaries/1, get_string/1, get_atom/1, maps/1, api_macros/1, @@ -68,6 +69,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [basic, reload, upgrade, heap_frag, types, many_args, + t_on_load, binaries, get_string, get_atom, maps, api_macros, from_array, iolist_as_binary, resource, resource_binary, resource_takeover, threading, send, send2, send3, @@ -83,10 +85,19 @@ all() -> nif_port_command, nif_snprintf]. +init_per_testcase(t_on_load, Config) -> + ets:new(nif_SUITE, [named_table]), + Config; init_per_testcase(_Case, Config) -> Config. +end_per_testcase(t_on_load, _Config) -> + ets:delete(nif_SUITE), + testcase_cleanup(); end_per_testcase(_Func, _Config) -> + testcase_cleanup(). + +testcase_cleanup() -> P1 = code:purge(nif_mod), Del = code:delete(nif_mod), P2 = code:purge(nif_mod), @@ -275,6 +286,132 @@ upgrade(Config) when is_list(Config) -> verify_tmpmem(TmpMem), ok. +%% Test loading/upgrade in on_load +t_on_load(Config) when is_list(Config) -> + TmpMem = tmpmem(), + ensure_lib_loaded(Config), + + Data = proplists:get_value(data_dir, Config), + File = filename:join(Data, "nif_mod"), + {ok,nif_mod,Bin} = compile:file(File, [binary,return_errors, + {d,'USE_ON_LOAD'}]), + + %% Use ETS to tell nif_mod:on_load what to do + ets:insert(nif_SUITE, {data_dir, Data}), + ets:insert(nif_SUITE, {lib_version, 1}), + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + hold_nif_mod_priv_data(nif_mod:get_priv_data_ptr()), + [{load,1,1,101},{get_priv_data_ptr,1,2,102}] = nif_mod_call_history(), + + {Pid,MRef} = nif_mod:start(), + 1 = call(Pid,lib_version), + [{lib_version,1,3,103}] = nif_mod_call_history(), + + %% Module upgrade with same lib-version + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + 1 = nif_mod:lib_version(), + 1 = call(Pid,lib_version), + [{upgrade,1,4,104},{lib_version,1,5,105},{lib_version,1,6,106}] = nif_mod_call_history(), + + upgraded = call(Pid,upgrade), + false = check_process_code(Pid, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,1,7,107}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + [{lib_version,1,8,108}] = nif_mod_call_history(), + + true = code:delete(nif_mod), + [] = nif_mod_call_history(), + + %% Repeat upgrade again but from old (deleted) instance + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + [{upgrade,1,9,109}] = nif_mod_call_history(), + 1 = nif_mod:lib_version(), + 1 = call(Pid,lib_version), + [{lib_version,1,10,110},{lib_version,1,11,111}] = nif_mod_call_history(), + + upgraded = call(Pid,upgrade), + false = check_process_code(Pid, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,1,12,112}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + [{lib_version,1,13,113}] = nif_mod_call_history(), + + true = code:delete(nif_mod), + [] = nif_mod_call_history(), + + + Pid ! die, + {'DOWN', MRef, process, Pid, normal} = receive_any(), + false = check_process_code(Pid, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,1,14,114}] = nif_mod_call_history(), + + %% Module upgrade with different lib version + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + hold_nif_mod_priv_data(nif_mod:get_priv_data_ptr()), + [{load,1,1,101},{get_priv_data_ptr,1,2,102}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + {Pid2,MRef2} = nif_mod:start(), + 1 = call(Pid2,lib_version), + [{lib_version,1,3,103},{lib_version,1,4,104}] = nif_mod_call_history(), + + true = ets:insert(nif_SUITE,{lib_version,2}), + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + [{upgrade,2,1,201}] = nif_mod_call_history(), + + 2 = nif_mod:lib_version(), + 1 = call(Pid2,lib_version), + [{lib_version,2,2,202},{lib_version,1,5,105}] = nif_mod_call_history(), + + upgraded = call(Pid2,upgrade), + false = check_process_code(Pid2, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,1,6,106}] = nif_mod_call_history(), + + 2 = nif_mod:lib_version(), + 2 = call(Pid2,lib_version), + [{lib_version,2,3,203},{lib_version,2,4,204}] = nif_mod_call_history(), + + true = code:delete(nif_mod), + [] = nif_mod_call_history(), + + %% Reverse upgrade but from old (deleted) instance + ets:insert(nif_SUITE,{lib_version,1}), + {module,nif_mod} = code:load_binary(nif_mod,File,Bin), + [{upgrade,1,1,101}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + 2 = call(Pid2,lib_version), + [{lib_version,1,2,102},{lib_version,2,5,205}] = nif_mod_call_history(), + + upgraded = call(Pid2,upgrade), + false = check_process_code(Pid2, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,2,6,206}] = nif_mod_call_history(), + + 1 = nif_mod:lib_version(), + [{lib_version,1,3,103}] = nif_mod_call_history(), + + true = code:delete(nif_mod), + [] = nif_mod_call_history(), + + + Pid2 ! die, + {'DOWN', MRef2, process, Pid2, normal} = receive_any(), + false= check_process_code(Pid2, nif_mod), + true = code:soft_purge(nif_mod), + [{unload,1,4,104}] = nif_mod_call_history(), + + true = lists:member(?MODULE, erlang:system_info(taints)), + true = lists:member(nif_mod, erlang:system_info(taints)), + verify_tmpmem(TmpMem), + ok. + + %% Test NIF building heap fragments heap_frag(Config) when is_list(Config) -> TmpMem = tmpmem(), diff --git a/erts/emulator/test/nif_SUITE_data/nif_mod.erl b/erts/emulator/test/nif_SUITE_data/nif_mod.erl index eec1bb8858..1fcc33faa4 100644 --- a/erts/emulator/test/nif_SUITE_data/nif_mod.erl +++ b/erts/emulator/test/nif_SUITE_data/nif_mod.erl @@ -29,6 +29,16 @@ -define(nif_stub,nif_stub_error(?LINE)). +-ifdef(USE_ON_LOAD). +-on_load(on_load/0). + +on_load() -> + [{data_dir, Path}] = ets:lookup(nif_SUITE, data_dir), + [{lib_version, Ver}] = ets:lookup(nif_SUITE, lib_version), + erlang:load_nif(filename:join(Path,libname(Ver)), []). + +-endif. + load_nif_lib(Config, Ver) -> load_nif_lib(Config, Ver, []). -- cgit v1.2.3