cpython.git - https://github.com/python/cpython.git

	Commit message (Collapse)	Author	Age	Files	Lines
*	[3.13] gh-123022: Fix crash with `Py_Initialize` in background thread ↵	Miss Islington (bot)	2024-08-17	1	-4/+12
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	(GH-123052) (#123114) Check that the current default heap is initialized in `_mi_os_get_aligned_hint` and `mi_os_claim_huge_pages`. The mimalloc function `_mi_os_get_aligned_hint` assumes that there is an initialized default heap. This is true for our main thread, but not for background threads. The problematic code path is usually called during initialization (i.e., `Py_Initialize`), but it may also be called if the program allocates large amounts of memory in total. The crash only affected the free-threaded build. (cherry picked from commit d061ffea7b408861d0a9d311e92c363da284971d) Co-authored-by: Sam Gross <colesbury@gmail.com>
*	gh-90815: Add mimalloc memory allocator (#109914)	Dino Viehland	2023-10-30	1	-0/+690
	* Add mimalloc v2.12 Modified src/alloc.c to remove include of alloc-override.c and not compile new handler. Did not include the following files: - include/mimalloc-new-delete.h - include/mimalloc-override.h - src/alloc-override-osx.c - src/alloc-override.c - src/static.c - src/region.c mimalloc is thread safe and shares a single heap across all runtimes, therefore finalization and getting global allocated blocks across all runtimes is different. * mimalloc: minimal changes for use in Python: - remove debug spam for freeing large allocations - use same bytes (0xDD) for freed allocations in CPython and mimalloc This is important for the test_capi debug memory tests * Don't export mimalloc symbol in libpython. * Enable mimalloc as Python allocator option. * Add mimalloc MIT license. * Log mimalloc in Lib/test/pythoninfo.py. * Document new mimalloc support. * Use macro defs for exports as done in: https://github.com/python/cpython/pull/31164/ Co-authored-by: Sam Gross <colesbury@gmail.com> Co-authored-by: Christian Heimes <christian@python.org> Co-authored-by: Victor Stinner <vstinner@python.org>