2366 #define SST SIZEOF_SIZE_T  macro
2369 #  define PYMEM_DEBUG_EXTRA_BYTES 4 * SST
2371 #  define PYMEM_DEBUG_EXTRA_BYTES 3 * SST
2382     for (i = SST; --i > 0; ++q)  in read_size_t()
2393     uint8_t *q = (uint8_t *)p + SST - 1;  in write_size_t()
2396     for (i = SST; --i >= 0; --q) {  in write_size_t()
2466     data = p + 2*SST;  in _PyMem_DebugRawAlloc()
2474     p[SST] = (uint8_t)api->api_id;  in _PyMem_DebugRawAlloc()
2475     memset(p + SST + 1, PYMEM_FORBIDDENBYTE, SST-1);  in _PyMem_DebugRawAlloc()
2483     memset(tail, PYMEM_FORBIDDENBYTE, SST);  in _PyMem_DebugRawAlloc()
2485     write_size_t(tail + SST, serialno);  in _PyMem_DebugRawAlloc()
2521     uint8_t *q = (uint8_t *)p - 2*SST;  /* address returned from malloc */  in _PyMem_DebugRawFree()
2552     head = data - 2*SST;  in _PyMem_DebugRawRealloc()
2562     size_t block_serialno = read_size_t(tail + SST);  in _PyMem_DebugRawRealloc()
2569         memset(data - 2 * SST, PYMEM_DEADBYTE,  in _PyMem_DebugRawRealloc()
2574         memset(head, PYMEM_DEADBYTE, ERASED_SIZE + 2 * SST);  in _PyMem_DebugRawRealloc()
2577                ERASED_SIZE + PYMEM_DEBUG_EXTRA_BYTES - 2 * SST);  in _PyMem_DebugRawRealloc()
2594     data = head + 2*SST;  in _PyMem_DebugRawRealloc()
2597     head[SST] = (uint8_t)api->api_id;  in _PyMem_DebugRawRealloc()
2598     memset(head + SST + 1, PYMEM_FORBIDDENBYTE, SST-1);  in _PyMem_DebugRawRealloc()
2601     memset(tail, PYMEM_FORBIDDENBYTE, SST);  in _PyMem_DebugRawRealloc()
2603     write_size_t(tail + SST, block_serialno);  in _PyMem_DebugRawRealloc()
2689     id = (char)q[-SST];  in _PyMem_DebugCheckAddress()
2702     for (i = SST-1; i >= 1; --i) {  in _PyMem_DebugCheckAddress()
2709     nbytes = read_size_t(q - 2*SST);  in _PyMem_DebugCheckAddress()
2711     for (i = 0; i < SST; ++i) {  in _PyMem_DebugCheckAddress()
2735     id = (char)q[-SST];  in _PyObject_DebugDumpAddress()
2738     nbytes = read_size_t(q - 2*SST);  in _PyObject_DebugDumpAddress()
2742     fprintf(stderr, "    The %d pad bytes at p-%d are ", SST-1, SST-1);  in _PyObject_DebugDumpAddress()
2744     for (i = 1; i <= SST-1; ++i) {  in _PyObject_DebugDumpAddress()
2755         for (i = SST-1; i >= 1; --i) {  in _PyObject_DebugDumpAddress()
2770     fprintf(stderr, "    The %d pad bytes at tail=%p are ", SST, (void *)tail);  in _PyObject_DebugDumpAddress()
2772     for (i = 0; i < SST; ++i) {  in _PyObject_DebugDumpAddress()
2783         for (i = 0; i < SST; ++i) {  in _PyObject_DebugDumpAddress()
2794     size_t serial = read_size_t(tail + SST);  in _PyObject_DebugDumpAddress()