Backed out 9 changesets (bug 1911021) for causing failures at ExecutionTracer.cpp. CLOSED TREE

Backed out changeset 3df922f26c68 (bug 1911021)
Backed out changeset 5ae948b4c4cb (bug 1911021)
Backed out changeset b3b69ca7a7e2 (bug 1911021)
Backed out changeset addef9853a2b (bug 1911021)
Backed out changeset aed1adb7245b (bug 1911021)
Backed out changeset 285922033e2b (bug 1911021)
Backed out changeset 217454e2cedc (bug 1911021)
Backed out changeset c7365fc6d4ab (bug 1911021)
Backed out changeset 6d1accf8bf38 (bug 1911021)

UltraBlame original commit: f8229eb11c8571108c176fdc2308a6566b1912e0

Author: marco-c

devtools/client/performance-new/shared/utils.js

@@ -3245,6 +3245,45 @@ windows
 name
 :
 "
+JSTracer
+"
+value
+:
+"
+jstracer
+"
+title
+:
+"
+Trace
+JS
+engine
+"
+experimental
+:
+true
+disabledReason
+:
+"
+JS
+Tracer
+is
+currently
+disabled
+due
+to
+crashes
+.
+See
+Bug
+1565788
+.
+"
+}
+{
+name
+:
+"
 IPC
 Messages
 "
@@ -3826,40 +3865,6 @@ sample
 .
 "
 }
-{
-name
-:
-"
-JS
-Execution
-Tracing
-"
-value
-:
-"
-tracing
-"
-title
-:
-"
-Disable
-periodic
-stack
-sampling
-and
-capture
-information
-about
-every
-JS
-function
-executed
-.
-"
-experimental
-:
-true
-}
 ]
 ;
 module

devtools/server/actors/tracer.js

@@ -1314,6 +1314,13 @@ tracingListener
 .
 stop
 (
+lazy
+.
+JSTracer
+.
+maybeGetNativeTrace
+(
+)
 )
 ;
 this

devtools/server/tracer/tracer.sys.mjs

@@ -1182,6 +1182,24 @@ throws
 *
 param
 {
+Boolean
+}
+options
+.
+useNativeTracing
+*
+Optional
+setting
+to
+enable
+the
+native
+tracing
+implementation
+.
+*
+param
+{
 String
 }
 options
@@ -1817,6 +1835,16 @@ traceFunctionReturn
 ;
 this
 .
+useNativeTracing
+=
+!
+!
+options
+.
+useNativeTracing
+;
+this
+.
 maxDepth
 =
 options
@@ -2388,6 +2416,24 @@ isTracing
 =
 true
 ;
+if
+(
+this
+.
+useNativeTracing
+)
+{
+this
+.
+dbg
+.
+nativeTracing
+=
+true
+;
+}
+else
+{
 this
 .
 dbg
@@ -2398,6 +2444,7 @@ this
 .
 onEnterFrame
 ;
+}
 if
 (
 this
@@ -2669,6 +2716,16 @@ g
 ;
 this
 .
+dbg
+.
+nativeTracing
+=
+this
+.
+useNativeTracing
+;
+this
+.
 debuggerNotificationObserver
 .
 connect
@@ -3704,6 +3761,49 @@ null
 *
 *
 *
+If
+native
+tracing
+is
+enabled
+get
+the
+trace
+from
+the
+native
+tracer
+*
+/
+maybeGetNativeTrace
+(
+)
+{
+if
+(
+this
+.
+useNativeTracing
+)
+{
+return
+this
+.
+dbg
+.
+collectNativeTrace
+(
+)
+;
+}
+return
+null
+;
+}
+/
+*
+*
+*
 Stop
 observing
 execution
@@ -3768,6 +3868,25 @@ dbg
 return
 ;
 }
+if
+(
+!
+this
+.
+useNativeTracing
+)
+{
+this
+.
+dbg
+.
+nativeTracing
+=
+false
+;
+}
+else
+{
 this
 .
 dbg
@@ -3776,6 +3895,7 @@ onEnterFrame
 =
 undefined
 ;
+}
 this
 .
 dbg
@@ -6974,6 +7094,67 @@ tracing
 *
 *
 *
+If
+native
+tracing
+is
+enabled
+get
+the
+trace
+from
+the
+native
+tracer
+*
+/
+function
+maybeGetNativeTrace
+(
+)
+{
+if
+(
+activeTracer
+)
+{
+return
+activeTracer
+.
+maybeGetNativeTrace
+(
+)
+;
+}
+console
+.
+warn
+(
+"
+Can
+'
+t
+get
+a
+native
+trace
+as
+we
+were
+not
+tracing
+.
+"
+)
+;
+return
+null
+;
+}
+/
+*
+*
+*
 Listen
 for
 tracing
@@ -7629,6 +7810,7 @@ JSTracer
 {
 startTracing
 stopTracing
+maybeGetNativeTrace
 addTracingListener
 removeTracingListener
 NEXT_INTERACTION_MESSAGE