STINNER Victor <vstin...@python.org> added the comment:
Objects/obmalloc.c currently relies on the SIZEOF_VOID_P macro: --- #if SIZEOF_VOID_P > 4 #define ALIGNMENT 16 /* must be 2^N */ #define ALIGNMENT_SHIFT 4 #else #define ALIGNMENT 8 /* must be 2^N */ #define ALIGNMENT_SHIFT 3 #endif --- If we want to respect sizeof(max_align_t) alignment, we can compute sizeof(max_align_t) in configure and uses the result in obmalloc.c. I expect that it's either 16 or 32, so we can maybe just hardcode ALIGNMENT_SHIFT using something like: "if == 32 ... #elif == 16 ... #else #error ...". On x86 (32-bit) Fedora 35, gcc says 48 for sizeof(max_align_t) which is way larger than the current alignment to 8 bytes! ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue47179> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
