nuttx/fs/procfs
chao an 6ee9ec7656 build: add initial cmake build system
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)

------------------

How to test

From within nuttx/. Configure:

cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja

(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja

This uses ninja generator (install with sudo apt install ninja-build). To build:

$ cmake --build build

menuconfig:

$ cmake --build build -t menuconfig

--------------------------

2. cmake/build: reformat the cmake style by cmake-format

https://github.com/cheshirekow/cmake_format

$ pip install cmakelang

$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done

Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-08 13:50:48 +08:00
..
CMakeLists.txt build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs_procfs.c sched: Remove the unnecessary cast from pid_t to int 2023-06-19 11:37:34 +03:00
fs_procfscpuinfo.c procfs:add /proc/cpuinfo 2023-05-27 03:29:41 +08:00
fs_procfscpuload.c procfs: Add g_ prefix to all procfs_operations 2023-04-22 03:33:50 -04:00
fs_procfscritmon.c procfs: Add g_ prefix to all procfs_operations 2023-04-22 03:33:50 -04:00
fs_procfsiobinfo.c procfs: Add g_ prefix to all procfs_operations 2023-04-22 03:33:50 -04:00
fs_procfsmeminfo.c mm: Rename MM_BACKTRACE_XXX_PID to PID_MM_XXX 2023-06-18 09:12:14 +03:00
fs_procfsproc.c sched: Remove the unnecessary cast from pid_t to int 2023-06-19 11:37:34 +03:00
fs_procfstcbinfo.c procfs: Add g_ prefix to all procfs_operations 2023-04-22 03:33:50 -04:00
fs_procfsuptime.c Indent the define statement by two spaces 2023-05-21 09:52:08 -03:00
fs_procfsutil.c procfs:add /proc/cpuinfo 2023-05-27 03:29:41 +08:00
fs_procfsversion.c procfs: Add g_ prefix to all procfs_operations 2023-04-22 03:33:50 -04:00
fs_skeleton.c change strcpy to strlcpy 2023-02-24 12:15:40 +08:00
Kconfig procfs:add /proc/cpuinfo 2023-05-27 03:29:41 +08:00
Make.defs procfs:add /proc/cpuinfo 2023-05-27 03:29:41 +08:00
README.txt Remove 'executable' bit on several files 2019-08-01 14:13:55 -06:00

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