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function check_fraghead to detect mmalloc metadata corruption
[simgrid.git]
/
src
/
xbt
/
mmalloc
/
mmprivate.h
diff --git
a/src/xbt/mmalloc/mmprivate.h
b/src/xbt/mmalloc/mmprivate.h
index
ccc667d
..
63ee257
100644
(file)
--- a/
src/xbt/mmalloc/mmprivate.h
+++ b/
src/xbt/mmalloc/mmprivate.h
@@
-17,6
+17,7
@@
#include "xbt/xbt_os_thread.h"
#include "xbt/mmalloc.h"
#include "xbt/ex.h"
#include "xbt/xbt_os_thread.h"
#include "xbt/mmalloc.h"
#include "xbt/ex.h"
+#include "xbt/dynar.h"
#include <semaphore.h>
#include <stdint.h>
#include <semaphore.h>
#include <stdint.h>
@@
-106,6
+107,18
@@
struct mstats
size_t bytes_free; /* Byte total of chunks in the free list. */
};
size_t bytes_free; /* Byte total of chunks in the free list. */
};
+typedef struct s_heap_area{
+ int block;
+ int fragment;
+}s_heap_area_t, *heap_area_t;
+
+typedef struct s_heap_area_pair{
+ int block1;
+ int fragment1;
+ int block2;
+ int fragment2;
+}s_heap_area_pair_t, *heap_area_pair_t;
+
/* Data structure giving per-block information.
*
* There is one such structure in the mdp->heapinfo array per block used in that heap,
/* Data structure giving per-block information.
*
* There is one such structure in the mdp->heapinfo array per block used in that heap,
@@
-129,26
+142,27
@@
struct mstats
* The type field is consistently updated for every blocks, even within clusters of blocks.
* You can crawl the array and rely on that value.
*
* The type field is consistently updated for every blocks, even within clusters of blocks.
* You can crawl the array and rely on that value.
*
- * TODO:
- * - make room to store the backtrace of where the blocks and fragment were malloced, too.
*/
typedef struct {
int type; /* 0: busy large block
>0: busy fragmented (fragments of size 2^type bytes)
<0: free block */
*/
typedef struct {
int type; /* 0: busy large block
>0: busy fragmented (fragments of size 2^type bytes)
<0: free block */
+
union {
/* Heap information for a busy block. */
struct {
size_t nfree; /* Free fragments in a fragmented block. */
size_t first; /* First free fragment of the block. */
union {
/* Heap information for a busy block. */
struct {
size_t nfree; /* Free fragments in a fragmented block. */
size_t first; /* First free fragment of the block. */
-
unsigned
short frag_size[MAX_FRAGMENT_PER_BLOCK];
+ short frag_size[MAX_FRAGMENT_PER_BLOCK];
void *bt[MAX_FRAGMENT_PER_BLOCK][XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */
void *bt[MAX_FRAGMENT_PER_BLOCK][XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */
+ heap_area_t equal_to[MAX_FRAGMENT_PER_BLOCK];
} busy_frag;
struct {
size_t size; /* Size (in blocks) of a large cluster. */
size_t busy_size; /* Actually used space, in bytes */
void *bt[XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */
int bt_size;
} busy_frag;
struct {
size_t size; /* Size (in blocks) of a large cluster. */
size_t busy_size; /* Actually used space, in bytes */
void *bt[XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */
int bt_size;
+ heap_area_t equal_to;
} busy_block;
/* Heap information for a free block (that may be the first of a free cluster). */
struct {
} busy_block;
/* Heap information for a free block (that may be the first of a free cluster). */
struct {
@@
-238,12
+252,6
@@
struct mdesc {
};
};
-int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2);
-
-void mmalloc_display_info(void *h);
-
-//void *get_end_addr_heap(void *s_heap);
-
/* Bits to look at in the malloc descriptor flags word */
#define MMALLOC_DEVZERO (1 << 0) /* Have mapped to /dev/zero */
/* Bits to look at in the malloc descriptor flags word */
#define MMALLOC_DEVZERO (1 << 0) /* Have mapped to /dev/zero */
@@
-272,4
+280,6
@@
extern void *mmorecore(struct mdesc *mdp, int size);
#define LOCK(mdp) sem_wait(&mdp->sem)
#define UNLOCK(mdp) sem_post(&mdp->sem)
#define LOCK(mdp) sem_wait(&mdp->sem)
#define UNLOCK(mdp) sem_post(&mdp->sem)
+void check_fraghead(struct mdesc *mdp);
+
#endif /* __MMPRIVATE_H */
#endif /* __MMPRIVATE_H */