使用CubeMX移植nano编译时提示大量未声明

发布于 2025-01-04 00:57:11 浏览：67 订阅该版

在使用STM32CubeMX 6.13.0版本，按照[https://club.rt-thread.org/ask/article/09235f1f8fe6c19e.html](https://club.rt-thread.org/ask/article/09235f1f8fe6c19e.html)官方教程 移植nano到STM32G431RBT6上时，未进行其他代码编写，仅引入nano，使用gcc进行编译时出现大量报错。报错集中在core/src/syscalls.c以及sysmem.c文件中。报错内容如下所示，主要是提示找不到errno.h中的相关声明。但是errno.h使用f12可以打开，也能正常访问到，但是编译时候就是会报错。我在CubeMX中的nano移植部分选择了kernel和libcpu，shell和device用不到我就没有选择。想求助各位大佬是怎么回事，小弟在此先谢为敬。
> Core/Src/syscalls.c: In function '_kill':
Core/Src/syscalls.c:57:3: error: 'errno' undeclared (first use in this function)
   57 |   errno = EINVAL;
      |   ^~~~~
Core/Src/syscalls.c:32:1: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
   31 | #include <sys/times.h>
  +++ |+#include <errno.h>
   32 |
Core/Src/syscalls.c:57:3: note: each undeclared identifier is reported only once for each function it appears in
   57 |   errno = EINVAL;
      |   ^~~~~
Core/Src/syscalls.c:57:11: error: 'EINVAL' undeclared (first use in this function)
   57 |   errno = EINVAL;
      |           ^~~~~~
Core/Src/syscalls.c: In function '_wait':
Core/Src/syscalls.c:131:3: error: 'errno' undeclared (first use in this function)
  131 |   errno = ECHILD;
      |   ^~~~~
Core/Src/syscalls.c:131:3: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
Core/Src/syscalls.c:131:11: error: 'ECHILD' undeclared (first use in this function)
  131 |   errno = ECHILD;
      |           ^~~~~~
Core/Src/syscalls.c: In function '_unlink':
Core/Src/syscalls.c:138:3: error: 'errno' undeclared (first use in this function)
  138 |   errno = ENOENT;
      |   ^~~~~
Core/Src/syscalls.c:138:3: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
Core/Src/syscalls.c:138:11: error: 'ENOENT' undeclared (first use in this function)
  138 |   errno = ENOENT;
      |           ^~~~~~
Core/Src/syscalls.c: In function '_link':
Core/Src/syscalls.c:159:3: error: 'errno' undeclared (first use in this function)
  159 |   errno = EMLINK;
      |   ^~~~~
Core/Src/syscalls.c:159:3: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
Core/Src/syscalls.c:159:11: error: 'EMLINK' undeclared (first use in this function)
  159 |   errno = EMLINK;
      |           ^~~~~~
Core/Src/syscalls.c: In function '_fork':
Core/Src/syscalls.c:165:3: error: 'errno' undeclared (first use in this function)
  165 |   errno = EAGAIN;
      |   ^~~~~
Core/Src/syscalls.c:165:3: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
Core/Src/syscalls.c:165:11: error: 'EAGAIN' undeclared (first use in this function)
  165 |   errno = EAGAIN;
      |           ^~~~~~
Core/Src/syscalls.c: In function '_execve':
Core/Src/syscalls.c:174:3: error: 'errno' undeclared (first use in this function)
  174 |   errno = ENOMEM;
      |   ^~~~~
Core/Src/syscalls.c:174:3: note: 'errno' is defined in header '<errno.h>'; did you forget to '#include <errno.h>'?
Core/Src/syscalls.c:174:11: error: 'ENOMEM' undeclared (first use in this function)
  174 |   errno = ENOMEM;
      |           ^~~~~~