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-rw-r--r--lib/debugger/src/dbg_iload.erl24
1 files changed, 11 insertions, 13 deletions
diff --git a/lib/debugger/src/dbg_iload.erl b/lib/debugger/src/dbg_iload.erl
index 70d43c20b2..d197cbe247 100644
--- a/lib/debugger/src/dbg_iload.erl
+++ b/lib/debugger/src/dbg_iload.erl
@@ -415,7 +415,7 @@ expr({call,Line,{remote,_,{atom,_,Mod},{atom,_,Func}},As0}) ->
false ->
{call_remote,Line,Mod,Func,As};
true ->
- case bif_type(Mod, Func) of
+ case bif_type(Mod, Func, length(As0)) of
safe -> {safe_bif,Line,Mod,Func,As};
spawn -> {spawn_bif,Line,Mod,Func,As};
unsafe ->{bif,Line,Mod,Func,As}
@@ -583,24 +583,22 @@ new_vars(N, L, Vs) when N > 0 ->
new_vars(N-1, L, [V|Vs]);
new_vars(0, _, Vs) -> Vs.
-bif_type(erlang, Name) -> bif_type(Name);
-bif_type(_, _) -> unsafe.
+bif_type(erlang, Name, Arity) ->
+ case erl_internal:guard_bif(Name, Arity) of
+ true ->
+ %% Guard BIFs are safe (except for self/0, but it is
+ %% handled with a special instruction anyway).
+ safe;
+ false ->
+ bif_type(Name)
+ end;
+bif_type(_, _, _) -> unsafe.
bif_type(register) -> safe;
bif_type(unregister) -> safe;
bif_type(whereis) -> safe;
bif_type(registered) -> safe;
-bif_type(abs) -> safe;
-bif_type(float) -> safe;
-bif_type(trunc) -> safe;
-bif_type(round) -> safe;
bif_type(math) -> safe;
-bif_type(node) -> safe;
-bif_type(length) -> safe;
-bif_type(hd) -> safe;
-bif_type(tl) -> safe;
-bif_type(size) -> safe;
-bif_type(element) -> safe;
bif_type(setelement) -> safe;
bif_type(atom_to_list) -> safe;
bif_type(list_to_atom) -> safe;