GH-93516: Store offset of first traceable instruction in code object (GH-93769)

1 files changed, 7 insertions, 0 deletions

diff --git a/Tools/scripts/deepfreeze.py b/Tools/scripts/deepfreeze.py
index ac2076708a..443fcf2274 100644
--- a/Tools/scripts/deepfreeze.py
+++ b/Tools/scripts/deepfreeze.py
@@ -20,6 +20,9 @@ from generate_global_objects import get_identifiers_and_strings
 verbose = False
 identifiers, strings = get_identifiers_and_strings()
 
+# This must be kept in sync with opcode.py
+RESUME = 151
+
 def isprintable(b: bytes) -> bool:
     return all(0x20 <= c < 0x7f for c in b)
 
@@ -267,6 +270,10 @@ class Printer:
             self.write(f".co_qualname = {co_qualname},")
             self.write(f".co_linetable = {co_linetable},")
             self.write(f".co_code_adaptive = {co_code_adaptive},")
+            for i, op in enumerate(code.co_code[::2]):
+                if op == RESUME:
+                    self.write(f"._co_firsttraceable = {i},")
+                    break
         name_as_code = f"(PyCodeObject *)&{name}"
         self.deallocs.append(f"_PyStaticCode_Dealloc({name_as_code});")
         self.interns.append(f"_PyStaticCode_InternStrings({name_as_code})")