36c05601df
procfs/fs_procfs.c: In function 'procfs_readdir':
Error: procfs/fs_procfs.c:719:9: error: unused variable 'pid' [-Werror=unused-variable]
719 | pid_t pid;
| ^~~
Error: procfs/fs_procfs.c:716:21: error: unused variable 'tcb' [-Werror=unused-variable]
716 | FAR struct tcb_s *tcb;
| ^~~
procfs/fs_procfs.c: At top level:
Error: procfs/fs_procfs.c:206:16: error: 'procfs_enum' declared 'static' but never defined [-Werror=unused-function]
206 | static void procfs_enum(FAR struct tcb_s *tcb, FAR void *arg);
| ^~~~~~~~~~~
procfs/fs_procfs.c: In function 'procfs_readdir':
Error: procfs/fs_procfs.c:878:35: error: array subscript <unknown> is outside array bounds of 'const struct procfs_entry_s[0]' [-Werror=array-bounds]
878 | if (strncmp(g_procfs_entries[level1->base.index].pathpattern,
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
procfs/fs_procfs.c:98:36: note: while referencing 'g_procfs_entries'
98 | static const struct procfs_entry_s g_procfs_entries[] =
| ^~~~~~~~~~~~~~~~
Error: procfs/fs_procfs.c:879:35: error: array subscript <unknown> is outside array bounds of 'const struct procfs_entry_s[0]' [-Werror=array-bounds]
879 | g_procfs_entries[level1->firstindex].pathpattern,
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
procfs/fs_procfs.c:98:36: note: while referencing 'g_procfs_entries'
98 | static const struct procfs_entry_s g_procfs_entries[] =
| ^~~~~~~~~~~~~~~~
Error: procfs/fs_procfs.c:745:24: error: array subscript <unknown> is outside array bounds of 'const struct procfs_entry_s[0]' [-Werror=array-bounds]
745 | pentry = &g_procfs_entries[index - priv->nentries];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
procfs/fs_procfs.c:98:36: note: while referencing 'g_procfs_entries'
98 | static const struct procfs_entry_s g_procfs_entries[] =
| ^~~~~~~~~~~~~~~~
Error: procfs/fs_procfs.c:745:41: error: array subscript <unknown> is outside array bounds of 'const struct procfs_entry_s[0]' [-Werror=array-bounds]
745 | pentry = &g_procfs_entries[index - priv->nentries];
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
fs/procfs README
================
This is a tiny procfs file system that allows read-only access to a few
attributes of a task or thread. This tiny procfs fs file system can be
built into the system by enabling:
CONFIG_FS_PROCFS=y
It can then be mounted from the NSH command like like:
nsh> mount -t procfs /proc
Example
=======
NuttShell (NSH) NuttX-6.31
nsh> mount -t procfs /proc
nsh> ls /proc
/proc:
0/
1/
nsh> ls /proc/1
/proc/1:
status
cmdline
nsh> cat /proc/1/status
Name: init
Type: Task
State: Running
Priority: 100
Scheduler: SCHED_FIFO
SigMask: 00000000
nsh> cat /proc/1/cmdline
init
nsh> sleep 100 &
sleep [2:100]
nsh> ls /proc
ls /proc
/proc:
0/
1/
2/
nsh> cat /proc/2/cmdline
<pthread> 0x527420