emulator: Add a fourth element in exception stacktraces

This commit is a preparation for introducing location information
(filename/line number) in stacktraces in exceptions. Currently
a stack trace looks like:

  [{Mod1,Function1,Arity1},
   .
   .
   .
   {ModN,FunctionN,ArityN}]

Add a forth element to each tuple that can be used indication
the filename and line number of the source file:

  [{Mod1,Function1,Arity1,Location1},
   .
   .
   .
   {ModN,FunctionN,ArityN,LocationN}]

In this commit, the fourth element will just be an empty list,
and we will change all code that look at or manipulate stacktraces.

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/snmp/src/agent/snmpa_set_lib.erl b/lib/snmp/src/agent/snmpa_set_lib.erl
index 191029f6db..00c77a0cdb 100644
--- a/lib/snmp/src/agent/snmpa_set_lib.erl
+++ b/lib/snmp/src/agent/snmpa_set_lib.erl
@@ -378,15 +378,15 @@ dbg_apply(M,F,A) ->
 		Res
 	end,
     case Result of
-	{'EXIT', {undef, [{M, F, A} | _]}} ->
+	{'EXIT', {undef, [{M, F, A, _} | _]}} ->
 	    {'EXIT', {hook_undef, {M, F, A}}};
-	{'EXIT', {function_clause, [{M, F, A} | _]}} ->
+	{'EXIT', {function_clause, [{M, F, A, _} | _]}} ->
 	    {'EXIT', {hook_function_clause, {M, F, A}}};
 
 	% XXX: Old format for compatibility
-	{'EXIT', {undef, {M, F, A}}} ->
+	{'EXIT', {undef, {M, F, A, _}}} ->
 	    {'EXIT', {hook_undef, {M, F, A}}};
-	{'EXIT', {function_clause, {M, F, A}}} ->
+	{'EXIT', {function_clause, {M, F, A, _}}} ->
 	    {'EXIT', {hook_function_clause, {M, F, A}}};
 
 	Result ->