10 [求助]请教RT-Studio链接.a库文件

发布于 2024-05-14 10:31:21 浏览：270 订阅该版

各位大哥，请教个问题呀。
我在使用RT-Studio。想链接一个.a库文件，但是捣鼓了很久都没有搞定。

(1)先说.a文件是怎么来的。
①找到RT-Studio的编译工具链: 
```
D:\RT-ThreadStudio\repo\Extract\ToolChain_Support_Packages\ARM\GNU_Tools_for_ARM_Embedded_Processors\5.4.1\arm-none-eabi\bin\
```
②使用ar把编译完的.o，打包出.a文件。

```shell
D:\RT-ThreadStudio\repo\Extract\ToolChain_Support_Packages\ARM\GNU_Tools_for_ARM_Embedded_Processors\5.4.1\arm-none-eabi\bin\ar.exe rcs libv3s_driver.a  ./*.o
```

(2)修改Scons脚本
①libv3s_driver.a文件存放路径为 `drivers/v3s_driver/libv3s_driver.a`

```shell
@LAPTOP-BH56UJG6 E:\SVN_Public\rt_studio\workspace\V3s_RTT_AWTK\drivers\v3s_driver
$ ls -l
total 261
-rw-r--r-- 1 meika Administrators    200 Apr  3 14:43 SConscript
-rw-r--r-- 1 meika Administrators 172776 May 14 09:46 libv3s_driver.a
-rw-r--r-- 1 meika Administrators    973 Feb 20 16:25 utils.h
-rw-r--r-- 1 meika Administrators    506 Jan  2 10:12 v3s_arm32.h
-rw-r--r-- 1 meika Administrators    579 Jan  2 10:48 v3s_cache.h
-rw-r--r-- 1 meika Administrators   3856 Feb  9 00:00 v3s_clock.h
-rw-r--r-- 1 meika Administrators    111 Jan  2 10:48 v3s_delay.h
-rw-r--r-- 1 meika Administrators   5170 Feb 20 16:06 v3s_dma.h
-rw-r--r-- 1 meika Administrators  31134 May 14 09:47 v3s_driver.zip
-rw-r--r-- 1 meika Administrators   4798 Feb 14 17:33 v3s_gpio.h
-rw-r--r-- 1 meika Administrators    802 Mar 26 09:29 v3s_iic.h
-rw-r--r-- 1 meika Administrators    338 Mar 26 09:52 v3s_io_iic.h
-rw-r--r-- 1 meika Administrators   1822 Feb 21 10:44 v3s_irq_map.h
-rw-r--r-- 1 meika Administrators   3243 Feb 21 09:41 v3s_lcd.h
-rw-r--r-- 1 meika Administrators   2590 Feb 21 14:51 v3s_lcd_conf.h
-rw-r--r-- 1 meika Administrators   5431 Jan  2 10:48 v3s_lcd_de.h
-rw-r--r-- 1 meika Administrators    454 Jan  2 10:48 v3s_lcd_lvds.h
-rw-r--r-- 1 meika Administrators   2495 Feb  9 00:00 v3s_reg_ccu.h
-rw-r--r-- 1 meika Administrators   1936 Feb 20 16:27 v3s_reg_de.h
-rw-r--r-- 1 meika Administrators   1717 Feb 20 16:28 v3s_reg_tcon.h
-rw-r--r-- 1 meika Administrators   1148 Feb 18 11:46 v3s_spi.h
-rw-r--r-- 1 meika Administrators   2186 Feb 20 16:26 v3s_timer.h
-rw-r--r-- 1 meika Administrators    479 May  8 14:29 v3s_touch_conf.h
-rw-r--r-- 1 meika Administrators   8533 Feb 21 10:58 v3s_types.h
-rw-r--r-- 1 meika Administrators    207 Apr  3 08:32 v3s_uart.h
```

②修改drivers目录下的scons脚本

```python
from building import *

cwd  = GetCurrentDir()
src  = Glob('*.c')
list = os.listdir(cwd)
CPPPATH = [cwd]
objs = []

LIBPATH = [cwd + '/v3s_driver'] 
LIBS = ['v3s_driver']

if not GetDepend('BSP_DRV_EMAC'):
    SrcRemove(src, ['drv_smc911x.c'])

if not GetDepend('BSP_DRV_CLCD'):
    SrcRemove(src, ['drv_clcd.c'])

group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH, LIBS = LIBS, LIBPATH=LIBPATH)

for d in list:
    path = os.path.join(cwd, d)
    if os.path.isfile(os.path.join(path, 'SConscript')):
        objs = objs + SConscript(os.path.join(d, 'SConscript'))
objs = objs + group

Return('objs')
```

③同步scons配置至项目
④编译项目
最后提示链接库报错

```shell
linking...
d:/rt-threadstudio/repo/extract/toolchain_support_packages/arm/gnu_tools_for_arm_embedded_processors/5.4.1/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -lv3s_driver
collect2.exe: error: ld returned 1 exit status
make: *** [makefile:160: rtthread.elf] Error 1
```

不知道怎么搞了，兄弟们支支招。