Merge branch 'egil/erts/tracing-support-lttng/OTP-13532'

* egil/erts/tracing-support-lttng/OTP-13532: (28 commits)
  runtime_tools: User's guide to LTTng and dyntrace
  runtime_tools: Fix Dtrace build
  erts: Fix gc messages in tracer_SUITE
  erts: Fix gc messages in sensitive_SUITE
  erts: Fix gc messages in trace_port_SUITE
  tools: Update fprof tests
  tools: Update fprof with new gc traces
  runtime_tools: Update dyntrace_lttng_SUITE tests
  runtime_tools: Add 'return_to' for call tracing
  erts: Fix return_to trace callback
  erts: Update erl_tracer documentation
  erts: Fix erl_tracer documentation typos
  Update preloaded erl_tracer.beam
  erts: Update erl_tracer type specs
  runtime_tools: Add lttng dyntrace tests
  runtime_tools: Extend 'trace' and 'enabled' tracer callbacks
  erts: Extend 'enabled' and 'trace' tracer callbacks
  runtime_tools: Extend 'enabled' tracer callbacks
  erts: Extend 'enabled' tracer callbacks
  runtime_tools: Update lttng garbage collection trace
  ...

2 files changed, 49 insertions, 8 deletions

diff --git a/lib/tools/src/fprof.erl b/lib/tools/src/fprof.erl
index f9da748fef..b21eedc625 100644
--- a/lib/tools/src/fprof.erl
+++ b/lib/tools/src/fprof.erl
@@ -1629,15 +1629,24 @@ trace_handler({trace_ts, Pid, in, {_M, _F, Args} = MFArgs, TS} = Trace,
     TS;
 %%
 %% gc_start
-trace_handler({trace_ts, Pid, gc_start, _Func, TS} = Trace,
-	      Table, _, Dump) ->
+trace_handler({trace_ts, Pid, gc_minor_start, _Func, TS} = Trace, Table, _, Dump) ->
+    dump_stack(Dump, get(Pid), Trace),
+    trace_gc_start(Table, Pid, TS),
+    TS;
+
+trace_handler({trace_ts, Pid, gc_major_start, _Func, TS} = Trace, Table, _, Dump) ->
     dump_stack(Dump, get(Pid), Trace),
     trace_gc_start(Table, Pid, TS),
     TS;
+
 %%
 %% gc_end
-trace_handler({trace_ts, Pid, gc_end, _Func, TS} = Trace,
-	      Table, _, Dump) ->
+trace_handler({trace_ts, Pid, gc_minor_end, _Func, TS} = Trace, Table, _, Dump) ->
+    dump_stack(Dump, get(Pid), Trace),
+    trace_gc_end(Table, Pid, TS),
+    TS;
+
+trace_handler({trace_ts, Pid, gc_major_end, _Func, TS} = Trace, Table, _, Dump) ->
     dump_stack(Dump, get(Pid), Trace),
     trace_gc_end(Table, Pid, TS),
     TS;
diff --git a/lib/tools/test/fprof_SUITE.erl b/lib/tools/test/fprof_SUITE.erl
index e18d384b52..affb45b7a6 100644
--- a/lib/tools/test/fprof_SUITE.erl
+++ b/lib/tools/test/fprof_SUITE.erl
@@ -949,8 +949,8 @@ handle_trace({trace_ts,Pid,return_to,MFA,TS},P) ->
     end,
     put({Pid,last_ts},TS),
     P;
-handle_trace({trace_ts,Pid,gc_start,_,TS},P) ->
-    ?dbg("~p",[{{gc_start,Pid},get(Pid)}]),
+handle_trace({trace_ts,Pid,gc_minor_start,_,TS},P) ->
+    ?dbg("~p",[{{gc_minor_start,Pid},get(Pid)}]),
     case get(Pid) of
         [suspend|_] = Stack ->
             T = ts_sub(TS,get({Pid,last_ts})),
@@ -970,8 +970,40 @@ handle_trace({trace_ts,Pid,gc_start,_,TS},P) ->
     end,
     put({Pid,last_ts},TS),
     P;
-handle_trace({trace_ts,Pid,gc_end,_,TS},P) ->
-    ?dbg("~p",[{{gc_end,Pid},get(Pid)}]),
+handle_trace({trace_ts,Pid,gc_major_start,_,TS},P) ->
+    ?dbg("~p",[{{gc_minor_start,Pid},get(Pid)}]),
+    case get(Pid) of
+        [suspend|_] = Stack ->
+            T = ts_sub(TS,get({Pid,last_ts})),
+            insert(Pid,garbage_collect),
+            update_acc(Pid,Stack,T),
+            put(Pid,[garbage_collect|Stack]);
+        [CallingMFA|_] = Stack ->
+            T = ts_sub(TS,get({Pid,last_ts})),
+            insert(Pid,garbage_collect),
+            update_own(Pid,CallingMFA,T),
+            update_acc(Pid,Stack,T),
+            put(Pid,[garbage_collect|Stack]);
+        undefined ->
+            put(first_ts,TS),
+            put(Pid,[garbage_collect]),
+            insert(Pid,garbage_collect)
+    end,
+    put({Pid,last_ts},TS),
+    P;
+handle_trace({trace_ts,Pid,gc_minor_end,_,TS},P) ->
+    ?dbg("~p",[{{gc_minor_end,Pid},get(Pid)}]),
+    T = ts_sub(TS,get({Pid,last_ts})),
+    case get(Pid) of
+        [garbage_collect|RestOfStack] = Stack ->
+            update_own(Pid,garbage_collect,T),
+            update_acc(Pid,Stack,T),
+            put(Pid,RestOfStack)
+    end,
+    put({Pid,last_ts},TS),
+    P;
+handle_trace({trace_ts,Pid,gc_major_end,_,TS},P) ->
+    ?dbg("~p",[{{gc_major_end,Pid},get(Pid)}]),
     T = ts_sub(TS,get({Pid,last_ts})),
     case get(Pid) of
         [garbage_collect|RestOfStack] = Stack ->