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-rw-r--r--lib/debugger/src/dbg_debugged.erl38
1 files changed, 12 insertions, 26 deletions
diff --git a/lib/debugger/src/dbg_debugged.erl b/lib/debugger/src/dbg_debugged.erl
index e142af4ae0..8b64a60a9c 100644
--- a/lib/debugger/src/dbg_debugged.erl
+++ b/lib/debugger/src/dbg_debugged.erl
@@ -31,32 +31,25 @@
%% Called via the error handler.
%%--------------------------------------------------------------------
eval(Mod, Func, Args) ->
- SaveStacktrace = erlang:get_stacktrace(),
Meta = dbg_ieval:eval(Mod, Func, Args),
Mref = erlang:monitor(process, Meta),
- msg_loop(Meta, Mref, SaveStacktrace).
+ msg_loop(Meta, Mref).
%%====================================================================
%% Internal functions
%%====================================================================
-msg_loop(Meta, Mref, SaveStacktrace) ->
+msg_loop(Meta, Mref) ->
receive
%% Evaluated function has returned a value
{sys, Meta, {ready, Val}} ->
erlang:demonitor(Mref, [flush]),
-
- %% Restore original stacktrace and return the value
- try erlang:raise(throw, stack, SaveStacktrace)
- catch
- throw:stack ->
- case Val of
- {dbg_apply,M,F,A} ->
- apply(M, F, A);
- _ ->
- Val
- end
+ case Val of
+ {dbg_apply,M,F,A} ->
+ apply(M, F, A);
+ _ ->
+ Val
end;
%% Evaluated function raised an (uncaught) exception
@@ -74,32 +67,25 @@ msg_loop(Meta, Mref, SaveStacktrace) ->
Meta ! {self(), rec_acked},
ok
end,
- msg_loop(Meta, Mref, SaveStacktrace);
+ msg_loop(Meta, Mref);
%% Meta needs something evaluated within context of real process
{sys, Meta, {command,Command}} ->
Reply = handle_command(Command),
Meta ! {sys, self(), Reply},
- msg_loop(Meta, Mref, SaveStacktrace);
+ msg_loop(Meta, Mref);
%% Meta has terminated
%% Must be due to int:stop() (or -heaven forbid- a debugger bug)
{'DOWN', Mref, _, _, Reason} ->
-
- %% Restore original stacktrace and return a dummy value
- try erlang:raise(throw, stack, SaveStacktrace)
- catch
- throw:stack ->
- {interpreter_terminated, Reason}
- end
+ {interpreter_terminated, Reason}
end.
handle_command(Command) ->
try
reply(Command)
- catch Class:Reason ->
- Stacktrace = stacktrace_f(erlang:get_stacktrace()),
- {exception,{Class,Reason,Stacktrace}}
+ catch Class:Reason:Stacktrace ->
+ {exception,{Class,Reason,stacktrace_f(Stacktrace)}}
end.
reply({apply,M,F,As}) ->