rtthread 4.0 shell的裁剪

发布于 2019-01-03 14:54:00 浏览：3432 订阅该版

[tocm]

* 本帖最后由 swet123 于 2019-1-3 14:59 编辑 *

# 1. finsh msh 全开:

![1.jpg](/uploads/201901/03/145732bnduohgozhunout1.jpg)
**编译大小**
Program Size: Code=32732 RO-data=4832 RW-data=620 ZI-data=3292

**flyMCU日志**
开始编程芯片，共需写入36KB,耗时12437
共写入36KB,进度100%,耗时15984毫秒

# 2.  去掉msh
![2.png](/uploads/201901/03/145829mz3a0r6xjq7e6w60.png)
**编译大小**
Program Size: Code=31028 RO-data=4092 RW-data=612 ZI-data=3292

**FlyMCU 烧写日志**
开始编程芯片，共需写入34KB,耗时6219毫
共写入34KB,进度100%,耗时9625毫秒
 
# 去掉history, 去掉symbol table description 等
 ![3.png](/uploads/201901/03/145847mdfpegx6b16d84y9.png)![3.png](/uploads/201901/03/145847mdfpegx6b16d84y9.png)
 **编译大小**
Program Size: Code=29788 RO-data=2580 RW-data=664 ZI-data=3288  
Finished: 0 information, 2 warning and 0 error messages. 
**FlyMCU 烧写日志**
开始编程芯片，共需写入31KB,耗时5437毫
共写入31KB,进度100%,耗时8484毫秒

#  完全去掉finsh

![4.png](/uploads/201901/03/145906pl9599yssx8zjlkz.png)![4.png](/uploads/201901/03/145906pl9599yssx8zjlkz.png)
**编译大小**
Program Size: Code=15852 RO-data=1708 RW-data=468 ZI-data=2132  
**FlyMCU 烧写日志**
开始编程芯片，共需写入17KB,耗时7219毫
共写入17KB,进度100%,耗时8891毫秒

# 群友说的只用msh
 ![5.png](/uploads/201901/03/145917eek6kpmho5gphmo1.png)
**编译大小**
Program Size: Code=21076 RO-data=1876 RW-data=556 ZI-data=2268  
**FlyMCU 烧写日志**
第7047毫秒，已准备好
开始编程芯片，共需写入22KB,耗时7063毫
共写入22KB,进度100%,耗时9266毫秒
 
这次只有22KB, 但是进入系统后, 缺识别不了任何命令. ps也不识别:
```
msh >ps
ps: command not found.
```

# 尝试保留msh模式
 ![6.png](/uploads/201901/03/145934nfipvkpf4pkxzx0u.png)
**编译大小**
Program Size: Code=23096 RO-data=4128 RW-data=508 ZI-data=2268  
**FlyMCU 烧写日志**
开始编程芯片，共需写入26KB,耗时4859毫
共写入26KB,进度100%,耗时7328毫秒

CRT:
```
msh >
msh >help
RT-Thread shell commands:
reboot           - Reboot System
canstat          - Stat Can Device Status.
adc              - adc function
version          - show RT-Thread version information
list_thread      - list thread
list_sem         - list semaphore in system
list_event       - list event in system
list_mutex       - list mutex in system
list_mempool     - list memory pool in system
list_timer       - list timer in system
list_device      - list device in system
help             - RT-Thread shell help.
ps               - List threads in the system.
time             - Execute command with time.
free             - Show the memory usage in the system.
```

# 去掉msh的 命令描述
 ![7.png](/uploads/201901/03/145951pnyslniekaa5ezan.png)
**编译大小**
Program Size: Code=23068 RO-data=3328 RW-data=508 ZI-data=2268  
**FlyMCU 烧写日志**
开始编程芯片，共需写入25KB,耗时10578

串口日志:
```
msh >help
RT-Thread shell commands:
reboot canstat adc version list_thread list_sem list_event list_mutex list_mempool list_timer list_device help ps time free 
msh >
msh >vers
version
msh >version

\ | /
- RT -     Thread Operating System
 / | \     4.0.0 build Jan  3 2019
 2006 - 2018 Copyright by rt-thread team
msh >
msh >
msh >
msh >
msh >
msh >
msh >ps
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tshell    20  ready   0x00000084 0x00001000    11%   0x00000004 000
tidle0    31  ready   0x00000044 0x00000100    32%   0x0000001d 000
main      10  suspend 0x00000080 0x00000800    09%   0x00000013 000
msh >
msh >
```

最后感觉这个版本还可以勉强接受...