1 files changed, 15 insertions, 0 deletions
diff --git a/compiler/vmdef.nim b/compiler/vmdef.nim
index 7b51c626d..9228ce5eb 100644
--- a/compiler/vmdef.nim
+++ b/compiler/vmdef.nim
@@ -261,6 +261,21 @@ type
     config*: ConfigRef
     graph*: ModuleGraph
     oldErrorCount*: int
+    profiler*: Profiler
+
+  PStackFrame* = ref TStackFrame
+  TStackFrame* = object
+    prc*: PSym                 # current prc; proc that is evaluated
+    slots*: seq[TFullReg]      # parameters passed to the proc + locals;
+                              # parameters come first
+    next*: PStackFrame         # for stacking
+    comesFrom*: int
+    safePoints*: seq[int]      # used for exception handling
+                              # XXX 'break' should perform cleanup actions
+                              # What does the C backend do for it?
+  Profiler* = object
+    tEnter*: float
+    tos*: PStackFrame
 
   TPosition* = distinct int