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vppinfra: expose raw memory traces

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Add clib_mem_trace_dup which return copy of memory traces and
can be used to save memory trace in different formats.

Type: improvement

Change-Id: I731860cdc65e6c5255620a6778ce6c893a493b1d
Signed-off-by: Matus Fabian <matfabia@cisco.com>
This commit is contained in:
Matus Fabian
2024-07-19 15:24:10 +02:00
committed by Florin Coras
parent e87a03f7a6
commit ef827b3efc
2 changed files with 34 additions and 15 deletions
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17
src/vppinfra/mem.h
View File

@ -299,10 +299,27 @@ void *clib_mem_init_thread_safe (void *memory, uword memory_size);
void clib_mem_exit (void);
typedef struct
{
/* Address of callers: outer first, inner last. */
uword callers[12];
/* Count of allocations with this traceback. */
u32 n_allocations;
/* Count of bytes allocated with this traceback. */
u32 n_bytes;
/* Offset of this item */
uword offset;
} mheap_trace_t;
void clib_mem_trace (int enable);
int clib_mem_is_traced (void);
mheap_trace_t *clib_mem_trace_dup (clib_mem_heap_t *heap);
typedef struct
{
/* Total number of objects allocated. */

32
src/vppinfra/mem_dlmalloc.c
View File

@ -21,21 +21,6 @@
#include <vppinfra/elf_clib.h>
#include <vppinfra/stack.h>
typedef struct
{
/* Address of callers: outer first, inner last. */
uword callers[12];
/* Count of allocations with this traceback. */
u32 n_allocations;
/* Count of bytes allocated with this traceback. */
u32 n_bytes;
/* Offset of this item */
uword offset;
} mheap_trace_t;
typedef struct
{
clib_spinlock_t lock;
@ -574,6 +559,23 @@ clib_mem_trace_enable_disable (uword enable)
return rv;
}
__clib_export mheap_trace_t *
clib_mem_trace_dup (clib_mem_heap_t *heap)
{
mheap_trace_main_t *tm = &mheap_trace_main;
mheap_trace_t *traces_copy = 0;
clib_spinlock_lock (&tm->lock);
if (vec_len (tm->traces) > 0 && heap == tm->current_traced_mheap)
{
traces_copy = vec_dup (tm->traces);
qsort (traces_copy, vec_len (traces_copy), sizeof (traces_copy[0]),
mheap_trace_sort);
}
clib_spinlock_unlock (&tm->lock);
return traces_copy;
}
__clib_export clib_mem_heap_t *
clib_mem_create_heap (void *base, uword size, int is_locked, char *fmt, ...)
{