1 /* Copyright (c) 2008-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "mc_private.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_memory, mc,
14 "Logging specific to MC (memory)");
16 /* Pointers to each of the heap regions to use */
17 void *std_heap = NULL; /* memory erased each time the MC stuff rollbacks to the beginning. Almost everything goes here */
18 void *raw_heap = NULL; /* memory persistent over the MC rollbacks. Only MC stuff should go there */
20 /* Initialize the model-checker memory subsystem */
21 /* It creates the two heap regions: std_heap and raw_heap */
24 /* Create the first region HEAP_OFFSET bytes after the heap break address */
25 std_heap = mmalloc_get_default_md();
26 xbt_assert(std_heap != NULL);
28 #if defined HAVE_GNU_LD && !defined MMALLOC_WANT_OVERRIDE_LEGACY
29 /* use the system malloc for the model-checker data */
32 /* Create the second region a page after the first one ends + safety gap */
33 raw_heap = xbt_mheap_new(-1, (char*)(std_heap) + STD_HEAP_SIZE + xbt_pagesize);
34 xbt_assert(raw_heap != NULL);
38 /* Finalize the memory subsystem */
39 #include "xbt_modinter.h"
40 void MC_memory_exit(void)
42 MC_free_object_info(&mc_binary_info);
43 MC_free_object_info(&mc_libsimgrid_info);
46 xbt_mheap_destroy(raw_heap);