mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-03 16:39:00 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

bpo-46430: Fix memory leak in interned strings of deep-frozen modules (GH-31549)

Browse source
This commit is contained in:
Kumar Aditya 2022-02-24 22:24:06 +05:30 • committed by GitHub
parent 042f31da55
commit 4dc746310b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 21 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Tools/scripts/deepfreeze.py
View file

@ -110,6 +110,7 @@ class Printer:
self.hits, self.misses = 0, 0
self.patchups: list[str] = []
self.deallocs: list[str] = []
self.interns: list[str] = []
self.write('#include "Python.h"')
self.write('#include "internal/pycore_gc.h"')
self.write('#include "internal/pycore_code.h"')
@ -279,7 +280,7 @@ class Printer:
self.write(f".co_cellvars = {co_cellvars},")
self.write(f".co_freevars = {co_freevars},")
self.deallocs.append(f"_PyStaticCode_Dealloc(&{name});")
self.patchups.append(f"_PyStaticCode_InternStrings(&{name});")
self.interns.append(f"_PyStaticCode_InternStrings(&{name});")
return f"& {name}.ob_base"
def generate_tuple(self, name: str, t: Tuple[object, ...]) -> str:
@ -446,6 +447,9 @@ def generate(args: list[str], output: TextIO) -> None:
with printer.block(f"void\n_Py_Deepfreeze_Fini(void)"):
for p in printer.deallocs:
printer.write(p)
with printer.block(f"void\n_Py_Deepfreeze_Init(void)"):
for p in printer.interns:
printer.write(p)
if verbose:
print(f"Cache hits: {printer.hits}, misses: {printer.misses}")