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procfs now shows stack thread information

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This commit is contained in:
Gregory Nutt
2013-12-15 14:35:47 -06:00
parent 1f115c76eb
commit 7fdf57b7bb
2 changed files with 83 additions and 5 deletions
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ChangeLog
+2
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@@ -6231,4 +6231,6 @@
* fs/procfs/fs_procfsproc.c: procfs now shows information about
the group that each thread belongs: Like parents, group member,
open file, and open sockets (2013-12-15).
* fs/procfs/fs_procfsproc.c: Now shows task stack information
(2013-12-15).
fs/procfs/fs_procfsproc.c
+81 -5
View File
@@ -85,7 +85,8 @@ enum proc_node_e
{
PROC_LEVEL0 = 0, /* The top-level directory */
PROC_STATUS, /* Task/thread status */
PROC_CMDLINE, /* Task Command line */
PROC_CMDLINE, /* Task command line */
PROC_STACK, /* Task stack info */
PROC_GROUP, /* Group directory */
PROC_GROUP_STATUS, /* Task group status */
PROC_GROUP_FD /* Group file descriptors */
@@ -135,6 +136,9 @@ static ssize_t proc_status(FAR struct proc_file_s *procfile,
static ssize_t proc_cmdline(FAR struct proc_file_s *procfile,
FAR struct tcb_s *tcb, FAR char *buffer, size_t buflen,
off_t offset);
static ssize_t proc_stack(FAR struct proc_file_s *procfile,
FAR struct tcb_s *tcb, FAR char *buffer, size_t buflen,
off_t offset);
static ssize_t proc_groupstatus(FAR struct proc_file_s *procfile,
FAR struct tcb_s *tcb, FAR char *buffer, size_t buflen,
off_t offset);
@@ -204,7 +208,12 @@ static const struct proc_node_s g_status =
static const struct proc_node_s g_cmdline =
{
"cmdline", "cmdline", (uint8_t)PROC_CMDLINE, DTYPE_FILE /* Task Command line */
"cmdline", "cmdline", (uint8_t)PROC_CMDLINE, DTYPE_FILE /* Task command line */
};
static const struct proc_node_s g_stack =
{
"stack", "stack", (uint8_t)PROC_STACK, DTYPE_FILE /* Task stack info */
};
static const struct proc_node_s g_group =
@@ -227,7 +236,8 @@ static const struct proc_node_s g_groupfd =
static FAR const struct proc_node_s * const g_nodeinfo[] =
{
&g_status, /* Task/thread status */
&g_cmdline, /* Task Command line */
&g_cmdline, /* Task command line */
&g_stack, /* Task stack info */
&g_group, /* Group directory */
&g_groupstatus, /* Task group status */
&g_groupfd /* Group file descriptors */
@@ -239,7 +249,8 @@ static FAR const struct proc_node_s * const g_nodeinfo[] =
static const struct proc_node_s * const g_level0info[] =
{
&g_status, /* Task/thread status */
&g_cmdline, /* Task Command line */
&g_cmdline, /* Task command line */
&g_stack, /* Task stack info */
&g_group, /* Group directory */
};
#define PROC_NLEVEL0NODES (sizeof(g_level0info)/sizeof(FAR const struct proc_node_s * const))
@@ -506,6 +517,67 @@ static ssize_t proc_cmdline(FAR struct proc_file_s *procfile,
return totalsize;
}
/****************************************************************************
* Name: proc_stack
****************************************************************************/
static ssize_t proc_stack(FAR struct proc_file_s *procfile,
FAR struct tcb_s *tcb, FAR char *buffer, size_t buflen,
off_t offset)
{
size_t remaining;
size_t linesize;
size_t copysize;
size_t totalsize;
remaining = buflen;
totalsize = 0;
/* Show the stack base address */
linesize = snprintf(procfile->line, STATUS_LINELEN, "%-12s0x%p\n",
"StackBase:", tcb->adj_stack_ptr);
copysize = procfs_memcpy(procfile->line, linesize, buffer, remaining, &offset);
totalsize += copysize;
buffer += copysize;
remaining -= copysize;
if (totalsize >= buflen)
{
return totalsize;
}
/* Show the stack size */
linesize = snprintf(procfile->line, STATUS_LINELEN, "%-12s%ld\n",
"StackSize:", (long)tcb->adj_stack_size);
copysize = procfs_memcpy(procfile->line, linesize, buffer, remaining, &offset);
totalsize += copysize;
buffer += copysize;
remaining -= copysize;
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK)
if (totalsize >= buflen)
{
return totalsize;
}
/* Show the stack size */
linesize = snprintf(procfile->line, STATUS_LINELEN, "%-12s%ld\n",
"StackUsed:", (long)up_check_tcbstack(tcb));
copysize = procfs_memcpy(procfile->line, linesize, buffer, remaining, &offset);
totalsize += copysize;
buffer += copysize;
remaining -= copysize;
#endif
return totalsize;
}
/****************************************************************************
* Name: proc_groupstatus
****************************************************************************/
@@ -910,10 +982,14 @@ static ssize_t proc_read(FAR struct file *filep, FAR char *buffer,
ret = proc_status(procfile, tcb, buffer, buflen, filep->f_pos);
break;
case PROC_CMDLINE: /* Task Command line */
case PROC_CMDLINE: /* Task command line */
ret = proc_cmdline(procfile, tcb, buffer, buflen, filep->f_pos);
break;
case PROC_STACK: /* Task stack info */
ret = proc_stack(procfile, tcb, buffer, buflen, filep->f_pos);
break;
case PROC_GROUP_STATUS: /* Task group status */
ret = proc_groupstatus(procfile, tcb, buffer, buflen, filep->f_pos);
break;