9b6cd96671
to express the intent more clear Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
161 lines
5.6 KiB
C
161 lines
5.6 KiB
C
/****************************************************************************
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* mm/mm_heap/mm_memdump.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/mm/mm.h>
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#include "mm_heap/mm.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#if UINTPTR_MAX <= UINT32_MAX
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# define MM_PTR_FMT_WIDTH 11
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#elif UINTPTR_MAX <= UINT64_MAX
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# define MM_PTR_FMT_WIDTH 19
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static void memdump_handler(FAR struct mm_allocnode_s *node, FAR void *arg)
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{
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FAR const struct mm_memdump_s *dump = arg;
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size_t nodesize = SIZEOF_MM_NODE(node);
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if ((node->size & MM_ALLOC_BIT) != 0)
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{
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DEBUGASSERT(nodesize >= SIZEOF_MM_ALLOCNODE);
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#if CONFIG_MM_BACKTRACE < 0
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if (dump->pid == PID_MM_ALLOC)
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#else
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if ((dump->pid == PID_MM_ALLOC || dump->pid == node->pid) &&
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node->seqno >= dump->seqmin && node->seqno <= dump->seqmax)
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#endif
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{
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#if CONFIG_MM_BACKTRACE < 0
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syslog(LOG_INFO, "%12zu%*p\n",
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nodesize, MM_PTR_FMT_WIDTH,
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((FAR char *)node + SIZEOF_MM_ALLOCNODE));
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#else
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# if CONFIG_MM_BACKTRACE > 0
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int i;
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FAR const char *format = " %0*p";
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# endif
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char buf[CONFIG_MM_BACKTRACE * MM_PTR_FMT_WIDTH + 1];
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buf[0] = '\0';
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# if CONFIG_MM_BACKTRACE > 0
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for (i = 0; i < CONFIG_MM_BACKTRACE && node->backtrace[i]; i++)
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{
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snprintf(buf + i * MM_PTR_FMT_WIDTH,
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sizeof(buf) - i * MM_PTR_FMT_WIDTH,
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format, MM_PTR_FMT_WIDTH - 1, node->backtrace[i]);
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}
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# endif
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syslog(LOG_INFO, "%6d%12zu%12lu%*p%s\n",
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(int)node->pid, nodesize, node->seqno,
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MM_PTR_FMT_WIDTH,
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((FAR char *)node + SIZEOF_MM_ALLOCNODE), buf);
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#endif
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}
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}
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else if (dump->pid == PID_MM_FREE)
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{
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FAR struct mm_freenode_s *fnode = (FAR void *)node;
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DEBUGASSERT(nodesize >= MM_MIN_CHUNK);
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DEBUGASSERT(fnode->blink->flink == fnode);
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DEBUGASSERT(SIZEOF_MM_NODE(fnode->blink) <= nodesize);
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DEBUGASSERT(fnode->flink == NULL ||
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fnode->flink->blink == fnode);
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DEBUGASSERT(fnode->flink == NULL ||
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SIZEOF_MM_NODE(fnode->flink) == 0 ||
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SIZEOF_MM_NODE(fnode->flink) >= nodesize);
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syslog(LOG_INFO, "%12zu%*p\n",
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nodesize, MM_PTR_FMT_WIDTH,
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((FAR char *)node + SIZEOF_MM_ALLOCNODE));
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mm_memdump
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*
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* Description:
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* mm_memdump returns a memory info about specified pid of task/thread.
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* if pid equals -1, this function will dump all allocated node and output
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* backtrace for every allocated node for this heap, if pid equals -2, this
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* function will dump all free node for this heap, and if pid is greater
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* than or equal to 0, will dump pid allocated node and output backtrace.
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****************************************************************************/
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void mm_memdump(FAR struct mm_heap_s *heap,
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FAR const struct mm_memdump_s *dump)
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{
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struct mallinfo_task info;
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if (dump->pid >= PID_MM_ALLOC)
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{
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syslog(LOG_INFO, "Dump all used memory node info:\n");
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#if CONFIG_MM_BACKTRACE < 0
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syslog(LOG_INFO, "%12s%*s\n", "Size", MM_PTR_FMT_WIDTH, "Address");
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#else
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syslog(LOG_INFO, "%6s%12s%12s%*s %s\n", "PID", "Size", "Sequence",
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MM_PTR_FMT_WIDTH, "Address", "Backtrace");
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#endif
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}
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else
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{
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syslog(LOG_INFO, "Dump all free memory node info:\n");
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syslog(LOG_INFO, "%12s%*s\n", "Size", MM_PTR_FMT_WIDTH, "Address");
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}
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#if CONFIG_MM_HEAP_MEMPOOL_THRESHOLD != 0
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mempool_multiple_memdump(heap->mm_mpool, dump);
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#endif
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mm_foreach(heap, memdump_handler, (FAR void *)dump);
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info = mm_mallinfo_task(heap, dump);
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syslog(LOG_INFO, "%12s%12s\n", "Total Blks", "Total Size");
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syslog(LOG_INFO, "%12d%12d\n", info.aordblks, info.uordblks);
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}
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