erts: Add erlang wrappers to binary_to_term

to not expose the trapping BIF in the stacktrace
when it throws badarg.

6 files changed, 30 insertions, 14 deletions

diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 3b7bb56885..9f3de5f780 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -45,7 +45,6 @@ bif erlang:apply/3
 bif erlang:atom_to_list/1
 bif erlang:binary_to_list/1
 bif erlang:binary_to_list/3
-bif erlang:binary_to_term/1	
 bif erlang:crc32/1
 bif erlang:crc32/2
 bif erlang:crc32_combine/3
@@ -152,6 +151,8 @@ bif erts_internal:port_command/3
 bif erts_internal:port_control/3
 bif erts_internal:port_close/1
 bif erts_internal:port_connect/2
+bif erts_internal:binary_to_term/1
+bif erts_internal:binary_to_term/2
 
 bif erts_internal:request_system_task/3
 bif erts_internal:check_process_code/2
@@ -479,11 +480,6 @@ bif erlang:call_on_load_function/1
 bif erlang:finish_after_on_load/2
 
 #
-# New Bifs in R13B4
-#
-bif erlang:binary_to_term/2
-
-#
 # The binary match bifs (New in R14A - EEP9)
 #
 
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 0d2de1b199..e3e199b198 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -1476,7 +1476,7 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con
                 erts_set_gc_state(p, 1);
             }
             BUMP_REDS(p, (initial_reds - ctx->reds) / B2T_BYTES_PER_REDUCTION);
-            BIF_ERROR(p, BADARG);
+            BIF_ERROR(p, BADARG & ~EXF_SAVETRACE);
 
         case B2TDone:
             b2t_destroy_context(ctx);
@@ -1522,7 +1522,7 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con
     BIF_TRAP1(&binary_to_term_trap_export, p, ctx->trap_bin);
 }
 
-BIF_RETTYPE binary_to_term_1(BIF_ALIST_1)
+BIF_RETTYPE erts_internal_binary_to_term_1(BIF_ALIST_1)
 {
 /*SVERK  if (++sverk_cnt % 1000 == 0) {
         erts_fprintf(stderr, "Call #%u to binary_to_term_int()\n", sverk_cnt);
@@ -1534,7 +1534,7 @@ BIF_RETTYPE binary_to_term_1(BIF_ALIST_1)
     return binary_to_term_int(BIF_P, 0, BIF_ARG_1, NULL);
 }
 
-BIF_RETTYPE binary_to_term_2(BIF_ALIST_2)
+BIF_RETTYPE erts_internal_binary_to_term_2(BIF_ALIST_2)
 {
     Eterm opts;
     Eterm opt;
diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam
index 159c91e37c..63fa535427 100644
--- a/erts/preloaded/ebin/erlang.beam
+++ b/erts/preloaded/ebin/erlang.beam
diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam
index 9d8a4cfd00..6c7dcff420 100644
--- a/erts/preloaded/ebin/erts_internal.beam
+++ b/erts/preloaded/ebin/erts_internal.beam
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index e521c6fc3d..7b59f6c8b4 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -362,15 +362,25 @@ binary_to_list(_Binary, _Start, _Stop) ->
 %% binary_to_term/1
 -spec binary_to_term(Binary) -> term() when
       Binary :: ext_binary().
-binary_to_term(_Binary) ->
-    erlang:nif_error(undefined).
+binary_to_term(Binary) ->
+    %% This BIF may throw badarg while trapping
+    try
+	erts_internal:binary_to_term(Binary)
+    catch
+	error:Reason -> erlang:error(Reason,[Binary])
+    end.
 
 %% binary_to_term/2
 -spec binary_to_term(Binary, Opts) -> term() when
       Binary :: ext_binary(),
       Opts :: [safe].
-binary_to_term(_Binary, _Opts) ->
-    erlang:nif_error(undefined).
+binary_to_term(Binary, Opts) ->
+    %% This BIF may throw badarg while trapping
+    try
+	erts_internal:binary_to_term(Binary,Opts)
+    catch
+	error:Reason -> erlang:error(Reason,[Binary,Opts])
+    end.
 
 %% bit_size/1
 %% Shadowed by erl_bif_types: erlang:bit_size/1
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index c8e8e7e069..d6a185482e 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -29,7 +29,7 @@
 -module(erts_internal).
 
 -export([await_port_send_result/3]).
-
+-export([binary_to_term/1, binary_to_term/2]).
 -export([port_command/3, port_connect/2, port_close/1,
 	 port_control/3, port_call/3, port_info/1, port_info/2]).
 
@@ -160,3 +160,13 @@ request_system_task(_Pid, _Prio, _Request) ->
 check_process_code(_Module, _OptionList) ->
     erlang:nif_error(undefined).
 
+-spec binary_to_term(Binary) -> term() when
+      Binary :: binary().
+binary_to_term(_Binary) ->
+    erlang:nif_error(undefined).
+
+-spec binary_to_term(Binary, Opts) -> term() when
+      Binary :: binary(),
+      Opts :: [safe].
+binary_to_term(_Binary, _Opts) ->
+    erlang:nif_error(undefined).