nuttx/mm/mm_heap/mm_memdump.c

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/****************************************************************************
* mm/mm_heap/mm_memdump.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <malloc.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/mm/mm.h>
#include "mm_heap/mm.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#if UINTPTR_MAX <= UINT32_MAX
# define MM_PTR_FMT_WIDTH 11
#elif UINTPTR_MAX <= UINT64_MAX
# define MM_PTR_FMT_WIDTH 19
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
static void memdump_handler(FAR struct mm_allocnode_s *node, FAR void *arg)
{
FAR const struct mm_memdump_s *dump = arg;
size_t nodesize = SIZEOF_MM_NODE(node);
if ((node->size & MM_ALLOC_BIT) != 0)
{
DEBUGASSERT(nodesize >= SIZEOF_MM_ALLOCNODE);
#if CONFIG_MM_BACKTRACE < 0
if (dump->pid == MM_BACKTRACE_ALLOC_PID)
#else
if ((dump->pid == MM_BACKTRACE_ALLOC_PID || node->pid == dump->pid) &&
node->seqno >= dump->seqmin && node->seqno <= dump->seqmax)
#endif
{
#if CONFIG_MM_BACKTRACE < 0
syslog(LOG_INFO, "%12zu%*p\n",
nodesize, MM_PTR_FMT_WIDTH,
((FAR char *)node + SIZEOF_MM_ALLOCNODE));
#else
# if CONFIG_MM_BACKTRACE > 0
int i;
FAR const char *format = " %0*p";
# endif
char buf[CONFIG_MM_BACKTRACE * MM_PTR_FMT_WIDTH + 1];
buf[0] = '\0';
# if CONFIG_MM_BACKTRACE > 0
for (i = 0; i < CONFIG_MM_BACKTRACE && node->backtrace[i]; i++)
{
snprintf(buf + i * MM_PTR_FMT_WIDTH,
sizeof(buf) - i * MM_PTR_FMT_WIDTH,
format, MM_PTR_FMT_WIDTH - 1, node->backtrace[i]);
}
# endif
syslog(LOG_INFO, "%6d%12zu%12lu%*p%s\n",
(int)node->pid, nodesize, node->seqno,
MM_PTR_FMT_WIDTH,
((FAR char *)node + SIZEOF_MM_ALLOCNODE), buf);
#endif
}
}
else
{
FAR struct mm_freenode_s *fnode = (FAR void *)node;
DEBUGASSERT(nodesize >= MM_MIN_CHUNK);
DEBUGASSERT(fnode->blink->flink == fnode);
DEBUGASSERT(SIZEOF_MM_NODE(fnode->blink) <= nodesize);
DEBUGASSERT(fnode->flink == NULL ||
fnode->flink->blink == fnode);
DEBUGASSERT(fnode->flink == NULL ||
SIZEOF_MM_NODE(fnode->flink) == 0 ||
SIZEOF_MM_NODE(fnode->flink) >= nodesize);
if (dump->pid <= MM_BACKTRACE_FREE_PID)
{
syslog(LOG_INFO, "%12zu%*p\n",
nodesize, MM_PTR_FMT_WIDTH,
((FAR char *)node + SIZEOF_MM_ALLOCNODE));
}
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: mm_memdump
*
* Description:
* mm_memdump returns a memory info about specified pid of task/thread.
* if pid equals -1, this function will dump all allocated node and output
* backtrace for every allocated node for this heap, if pid equals -2, this
* function will dump all free node for this heap, and if pid is greater
* than or equal to 0, will dump pid allocated node and output backtrace.
****************************************************************************/
void mm_memdump(FAR struct mm_heap_s *heap,
FAR const struct mm_memdump_s *dump)
{
struct mallinfo_task info;
if (dump->pid >= -1)
{
syslog(LOG_INFO, "Dump all used memory node info:\n");
#if CONFIG_MM_BACKTRACE < 0
syslog(LOG_INFO, "%12s%*s\n", "Size", MM_PTR_FMT_WIDTH, "Address");
#else
syslog(LOG_INFO, "%6s%12s%12s%*s %s\n", "PID", "Size", "Sequence",
MM_PTR_FMT_WIDTH, "Address", "Backtrace");
#endif
}
else
{
syslog(LOG_INFO, "Dump all free memory node info:\n");
syslog(LOG_INFO, "%12s%*s\n", "Size", MM_PTR_FMT_WIDTH, "Address");
}
#if CONFIG_MM_HEAP_MEMPOOL_THRESHOLD != 0
mempool_multiple_memdump(heap->mm_mpool, dump);
#endif
mm_foreach(heap, memdump_handler, (FAR void *)dump);
info = mm_mallinfo_task(heap, dump);
syslog(LOG_INFO, "%12s%12s\n", "Total Blks", "Total Size");
syslog(LOG_INFO, "%12d%12d\n", info.aordblks, info.uordblks);
}