From 8ea7e0041b231927abc07f00cffecae85a825ab0 Mon Sep 17 00:00:00 2001
From: Tim Wojtulewicz <tim@corelight.com>
Date: Tue, 30 Sep 2025 16:11:02 -0700
Subject: [PATCH] Testing disabling frame tracing for performance reasons

---
 src/Func.cc       | 9 ++++++---
 src/zeek-setup.cc | 6 ++++--
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/Func.cc b/src/Func.cc
index e6047df71e..2a1247d725 100644
--- a/src/Func.cc
+++ b/src/Func.cc
@@ -339,7 +339,8 @@ ValPtr ScriptFunc::Invoke(zeek::Args* args, Frame* parent) const {
         f->SetTriggerAssoc(parent->GetTriggerAssoc());
     }
 
-    g_frame_stack.push_back(f.get()); // used for backtracing
+    if ( ! g_policy_debug )
+        g_frame_stack.push_back(f.get()); // used for backtracing
     const CallExpr* call_expr = parent ? parent->GetCall() : nullptr;
     call_stack.emplace_back(CallInfo{call_expr, this, *args});
 
@@ -391,7 +392,8 @@ ValPtr ScriptFunc::Invoke(zeek::Args* args, Frame* parent) const {
         catch ( InterpreterException& e ) {
             // Already reported, but now determine whether to unwind further.
             if ( Flavor() == FUNC_FLAVOR_FUNCTION ) {
-                g_frame_stack.pop_back();
+                if ( ! g_policy_debug )
+                    g_frame_stack.pop_back();
                 call_stack.pop_back();
                 // Result not set b/c exception was thrown
                 throw;
@@ -448,7 +450,8 @@ ValPtr ScriptFunc::Invoke(zeek::Args* args, Frame* parent) const {
         g_trace_state.LogTrace("Function return: %s\n", d.Description());
     }
 
-    g_frame_stack.pop_back();
+    if ( ! g_policy_debug )
+        g_frame_stack.pop_back();
 
     return result;
 }
diff --git a/src/zeek-setup.cc b/src/zeek-setup.cc
index 070aad5308..898ce050a6 100644
--- a/src/zeek-setup.cc
+++ b/src/zeek-setup.cc
@@ -1105,7 +1105,8 @@ SetupResult setup(int argc, char** argv, Options* zopts) {
         auto [body, scope] = get_global_stmts();
         StmtFlowType flow;
         Frame f(scope->Length(), nullptr, nullptr);
-        g_frame_stack.push_back(&f);
+        if ( ! g_policy_debug )
+            g_frame_stack.push_back(&f);
 
         try {
             body->Exec(&f, flow);
@@ -1113,7 +1114,8 @@ SetupResult setup(int argc, char** argv, Options* zopts) {
             reporter->FatalError("failed to execute script statements at top-level scope");
         }
 
-        g_frame_stack.pop_back();
+        if ( ! g_policy_debug )
+            g_frame_stack.pop_back();
     }
 
     clear_script_analysis();