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memdump: support dump the leak memory (malloced but task exit)

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1. command "memdump leak" can dump the leacked memory node;
2. fix the leak memory stat bug in memory manager;

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
This commit is contained in:
wangbowen6
2023-05-26 17:17:19 +08:00
committed by Xiang Xiao
parent 1fb65e18d2
commit b0ab41beee
5 changed files with 35 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/procfs/fs_procfsmeminfo.c
+24 -30
View File
@@ -56,7 +56,7 @@
* to handle the longest line generated by this logic. * to handle the longest line generated by this logic.
*/ */
#define MEMINFO_LINELEN 80 #define MEMINFO_LINELEN 256
/**************************************************************************** /****************************************************************************
* Private Types * Private Types
@@ -404,7 +404,6 @@ static ssize_t memdump_read(FAR struct file *filep, FAR char *buffer,
FAR struct meminfo_file_s *procfile; FAR struct meminfo_file_s *procfile;
size_t linesize; size_t linesize;
size_t copysize; size_t copysize;
size_t totalsize;
off_t offset; off_t offset;
finfo("buffer=%p buflen=%d\n", buffer, (int)buflen); finfo("buffer=%p buflen=%d\n", buffer, (int)buflen);
@@ -419,41 +418,26 @@ static ssize_t memdump_read(FAR struct file *filep, FAR char *buffer,
#if CONFIG_MM_BACKTRACE >= 0 #if CONFIG_MM_BACKTRACE >= 0
linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN, linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN,
"usage: <pid/used/free/on/off>" "usage: <on/off/pid/used/free/leak>"
"<seqmin> <seqmax> \n" "<seqmin> <seqmax>\n"
"on/off backtrace\n" "on/off backtrace\n"
"pid: dump pid allocated node\n"); "pid: dump pid allocated node\n"
"used: dump all allocated node\n"
"free: dump all free node\n"
"leak: dump all leaked node\n"
"The current sequence number %lu\n",
g_mm_seqno);
#else #else
linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN, linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN,
"usage: <used/free>\n"); "usage: <used/free>\n"
"used: dump all allocated node\n"
"free: dump all free node\n");
#endif #endif
copysize = procfs_memcpy(procfile->line, linesize, buffer, buflen, copysize = procfs_memcpy(procfile->line, linesize, buffer, buflen,
&offset); &offset);
totalsize = copysize; filep->f_pos += copysize;
buffer += copysize; return copysize;
buflen -= copysize;
linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN,
"used: dump all allocated node\n"
"free: dump all free node\n");
copysize = procfs_memcpy(procfile->line, linesize, buffer, buflen,
&offset);
totalsize += copysize;
#if CONFIG_MM_BACKTRACE >= 0
buffer += copysize;
buflen -= copysize;
linesize = procfs_snprintf(procfile->line, MEMINFO_LINELEN,
"The current sequence number %lu\n",
g_mm_seqno);
totalsize += procfs_memcpy(procfile->line, linesize, buffer, buflen,
&offset);
#endif
filep->f_pos += totalsize;
return totalsize;
} }
#endif #endif
@@ -556,6 +540,16 @@ static ssize_t memdump_write(FAR struct file *filep, FAR const char *buffer,
goto dump; goto dump;
#endif #endif
break; break;
case 'l':
dump.pid = PID_MM_LEAK;
#if CONFIG_MM_BACKTRACE >= 0
p = (FAR char *)buffer + 4;
goto dump;
#endif
break;
#if CONFIG_MM_BACKTRACE >= 0 #if CONFIG_MM_BACKTRACE >= 0
default: default:
if (!isdigit(buffer[0])) if (!isdigit(buffer[0]))
mm/mempool/mempool.c
+2 -2
View File
@@ -427,7 +427,7 @@ mempool_info_task(FAR struct mempool_s *pool,
node) node)
{ {
if ((task->pid == buf->pid || task->pid == PID_MM_ALLOC || if ((task->pid == buf->pid || task->pid == PID_MM_ALLOC ||
(task->pid == PID_MM_LEAK && !!nxsched_get_tcb(buf->pid))) && (task->pid == PID_MM_LEAK && !nxsched_get_tcb(buf->pid))) &&
buf->seqno >= task->seqmin && buf->seqno <= task->seqmax) buf->seqno >= task->seqmin && buf->seqno <= task->seqmax)
{ {
info.aordblks++; info.aordblks++;
@@ -490,7 +490,7 @@ void mempool_memdump(FAR struct mempool_s *pool,
struct mempool_backtrace_s, node) struct mempool_backtrace_s, node)
{ {
if ((dump->pid == buf->pid || dump->pid == PID_MM_ALLOC || if ((dump->pid == buf->pid || dump->pid == PID_MM_ALLOC ||
(dump->pid == PID_MM_LEAK && !!nxsched_get_tcb(buf->pid))) && (dump->pid == PID_MM_LEAK && !nxsched_get_tcb(buf->pid))) &&
buf->seqno >= dump->seqmin && buf->seqno <= dump->seqmax) buf->seqno >= dump->seqmin && buf->seqno <= dump->seqmax)
{ {
char tmp[CONFIG_MM_BACKTRACE * MM_PTR_FMT_WIDTH + 1] = ""; char tmp[CONFIG_MM_BACKTRACE * MM_PTR_FMT_WIDTH + 1] = "";
mm/mm_heap/mm_mallinfo.c
+2 -1
View File
@@ -106,7 +106,8 @@ static void mallinfo_task_handler(FAR struct mm_allocnode_s *node,
#else #else
if ((task->pid == node->pid || if ((task->pid == node->pid ||
(task->pid == PID_MM_ALLOC && node->pid != PID_MM_MEMPOOL) || (task->pid == PID_MM_ALLOC && node->pid != PID_MM_MEMPOOL) ||
(task->pid == PID_MM_LEAK && !!nxsched_get_tcb(node->pid))) && (task->pid == PID_MM_LEAK && node->pid >= 0 &&
!nxsched_get_tcb(node->pid))) &&
node->seqno >= task->seqmin && node->seqno <= task->seqmax) node->seqno >= task->seqmin && node->seqno <= task->seqmax)
{ {
info->aordblks++; info->aordblks++;
mm/mm_heap/mm_memdump.c
+3 -3
View File
@@ -61,9 +61,9 @@ static void memdump_handler(FAR struct mm_allocnode_s *node, FAR void *arg)
#if CONFIG_MM_BACKTRACE < 0 #if CONFIG_MM_BACKTRACE < 0
if (dump->pid == PID_MM_ALLOC) if (dump->pid == PID_MM_ALLOC)
#else #else
if ((dump->pid == node->pid || if ((dump->pid == node->pid || dump->pid == PID_MM_ALLOC ||
(dump->pid == PID_MM_ALLOC && node->pid != PID_MM_MEMPOOL) || (dump->pid == PID_MM_LEAK && node->pid >= 0 &&
(dump->pid == PID_MM_LEAK && !!nxsched_get_tcb(node->pid))) && !nxsched_get_tcb(node->pid))) &&
node->seqno >= dump->seqmin && node->seqno <= dump->seqmax) node->seqno >= dump->seqmin && node->seqno <= dump->seqmax)
#endif #endif
{ {
mm/tlsf/mm_tlsf.c
+4 -2
View File
@@ -299,7 +299,8 @@ static void mallinfo_task_handler(FAR void *ptr, size_t size, int used,
if ((task->pid == buf->pid || if ((task->pid == buf->pid ||
(task->pid == PID_MM_ALLOC && buf->pid != PID_MM_MEMPOOL) || (task->pid == PID_MM_ALLOC && buf->pid != PID_MM_MEMPOOL) ||
(task->pid == PID_MM_LEAK && !!nxsched_get_tcb(buf->pid))) && (task->pid == PID_MM_LEAK && buf->pid >= 0 &&
!nxsched_get_tcb(buf->pid))) &&
buf->seqno >= task->seqmin && buf->seqno <= task->seqmax) buf->seqno >= task->seqmin && buf->seqno <= task->seqmax)
{ {
info->aordblks++; info->aordblks++;
@@ -412,7 +413,8 @@ static void memdump_handler(FAR void *ptr, size_t size, int used,
if ((dump->pid == buf->pid || if ((dump->pid == buf->pid ||
(dump->pid == PID_MM_ALLOC && buf->pid != PID_MM_MEMPOOL) || (dump->pid == PID_MM_ALLOC && buf->pid != PID_MM_MEMPOOL) ||
(dump->pid == PID_MM_LEAK && !!nxsched_get_tcb(buf->pid))) && (dump->pid == PID_MM_LEAK && buf->pid >= 0 &&
!nxsched_get_tcb(buf->pid))) &&
buf->seqno >= dump->seqmin && buf->seqno <= dump->seqmax) buf->seqno >= dump->seqmin && buf->seqno <= dump->seqmax)
#endif #endif
{ {