ESP32使用文件系统时找不到头文件

发布于 2024-11-04 20:15:21 浏览：132 订阅该版

dfs，libc和SFUD都已经打开了，但编译时产生如下错误：

```c
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
scons: building associated VariantDir targets: build
CC build/kernel/components/dfs/dfs_v1/filesystems/devfs/devfs.o
In file included from /home/lzx/myrtt/rt-thread/components/dfs/dfs_v1/filesystems/devfs/devfs.c:14:
/home/lzx/myrtt/rt-thread/components/dfs/dfs_v1/include/dfs.h:21:10: fatal error: sys/statfs.h: No such file or directory
   21 | #include <sys/statfs.h>
      |          ^~~~~~~~~~~~~~
compilation terminated.
scons: *** [build/kernel/components/dfs/dfs_v1/filesystems/devfs/devfs.o] Error 
```
之后我将头文件改成绝对路径的方式可以编译这行代码，但产生新的错误：

```c
CC build/kernel/components/dfs/dfs_v1/filesystems/devfs/devfs.o
/home/lzx/myrtt/rt-thread/components/dfs/dfs_v1/filesystems/devfs/devfs.c: In function 'dfs_device_fs_getdents':
/home/lzx/myrtt/rt-thread/components/dfs/dfs_v1/filesystems/devfs/devfs.c:363:12: error: 'struct dirent' has no member named 'd_namlen'; did you mean 'd_name'?
  363 |         d->d_namlen = RT_NAME_MAX;
      |            ^~~~~~~~
      |            d_name
/home/lzx/myrtt/rt-thread/components/dfs/dfs_v1/filesystems/devfs/devfs.c:364:10: error: 'struct dirent' has no member named 'd_reclen'
  364 |         d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
      |          ^~
```
我怀疑是工具链的问题，文件系统的工具链并没有适配到scons构建系统，但不太确定，希望大佬指点

我的部分配置如下：

```c
/* DFS: device virtual file system */

#define RT_USING_DFS
#define DFS_USING_POSIX
#define DFS_USING_WORKDIR
#define DFS_FD_MAX 16
#define RT_USING_DFS_V1
#define DFS_FILESYSTEMS_MAX 4
#define DFS_FILESYSTEM_TYPES_MAX 4
#define RT_USING_DFS_ELMFAT

/* elm-chan's FatFs, Generic FAT Filesystem Module */

#define RT_DFS_ELM_CODE_PAGE 437
#define RT_DFS_ELM_WORD_ACCESS
#define RT_DFS_ELM_USE_LFN_3
#define RT_DFS_ELM_USE_LFN 3
#define RT_DFS_ELM_LFN_UNICODE_0
#define RT_DFS_ELM_LFN_UNICODE 0
#define RT_DFS_ELM_MAX_LFN 255
#define RT_DFS_ELM_DRIVES 2
#define RT_DFS_ELM_MAX_SECTOR_SIZE 4096
#define RT_DFS_ELM_REENTRANT
#define RT_DFS_ELM_MUTEX_TIMEOUT 3000
/* end of elm-chan's FatFs, Generic FAT Filesystem Module */
#define RT_USING_DFS_DEVFS
/* end of DFS: device virtual file system */

/* Device Drivers */

#define RT_USING_DEVICE_IPC
#define RT_UNAMED_PIPE_NUMBER 64
#define RT_USING_SYSTEM_WORKQUEUE
#define RT_SYSTEM_WORKQUEUE_STACKSIZE 2048
#define RT_SYSTEM_WORKQUEUE_PRIORITY 23
#define RT_USING_SERIAL
#define RT_USING_SERIAL_V1
#define RT_SERIAL_RB_BUFSZ 64
#define RT_USING_SPI
#define RT_USING_SFUD
#define RT_SFUD_USING_SFDP
#define RT_SFUD_USING_FLASH_INFO_TABLE
#define RT_SFUD_SPI_MAX_HZ 50000000
#define RT_USING_PIN
#define RT_USING_KTIME
/* end of Device Drivers */

/* C/C++ and POSIX layer */

/* ISO-ANSI C layer */

/* Timezone and Daylight Saving Time */

#define RT_LIBC_USING_LIGHT_TZ_DST
#define RT_LIBC_TZ_DEFAULT_HOUR 8
#define RT_LIBC_TZ_DEFAULT_MIN 0
#define RT_LIBC_TZ_DEFAULT_SEC 0
/* end of Timezone and Daylight Saving Time */
/* end of ISO-ANSI C layer */

/* POSIX (Portable Operating System Interface) layer */

#define RT_USING_POSIX_FS
#define RT_USING_POSIX_DEVIO
#define RT_USING_POSIX_STDIO
#define RT_USING_POSIX_POLL
#define RT_USING_POSIX_SELECT
#define RT_USING_POSIX_EVENTFD
#define RT_USING_POSIX_TIMERFD
#define RT_USING_POSIX_SOCKET
#define RT_USING_POSIX_TERMIOS
#define RT_USING_POSIX_AIO
#define RT_USING_POSIX_DELAY
```

1 个回答

qq1078249029 2024-11-05

这家伙很懒，什么也没写！

目前修改Cmake可以让 `sys/statfs.h` 文件被系统识别，但出现了新的错误

```c
-- Configuring done
-- Generating done
-- Build files have been written to: /home/lzx/myrtt/rt-thread/bsp/ESP32_C3
Consolidate compiler generated dependencies of target rtt_DeviceDrivers
[  0%] Building C object CMakeFiles/rtt_DeviceDrivers.dir/home/lzx/myrtt/rt-thread/components/drivers/core/device.c.obj
In file included from /home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../components/libc/compilers/common/include/sys/select.h:17,
                 from /opt/riscv32-esp-elf/riscv32-esp-elf/sys-include/sys/types.h:50,
                 from /home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../include/rttypes.h:20,
                 from /home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../include/rtsched.h:14,
                 from /home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../include/rtdef.h:68,
                 from /home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../include/rtthread.h:32,
                 from /home/lzx/myrtt/rt-thread/components/drivers/core/device.c:18:
/home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../components/libc/compilers/common/include/sys/time.h:55:5: error: unknown type name 'time_t'
   55 |     time_t      tv_sec;     /* seconds */
      |     ^~~~~~
/home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../components/libc/compilers/common/include/sys/time.h:56:5: error: unknown type name 'suseconds_t'
   56 |     suseconds_t tv_usec;    /* and microseconds */
      |     ^~~~~~~~~~~
/home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../components/libc/compilers/common/include/sys/time.h:107:17: error:unknown type name 'time_t'
  107 | int stime(const time_t *t);
      |                 ^~~~~~
/home/lzx/myrtt/rt-thread/bsp/ESP32_C3/../../components/libc/compilers/common/include/sys/time.h:108:1: error: unknown type name 'time_t'; did you mean 'size_t'?
  108 | time_t timegm(struct tm * const t);
      | ^~~~~~
      | size_t
make[2]: *** [CMakeFiles/rtt_DeviceDrivers.dir/build.make:76: CMakeFiles/rtt_DeviceDrivers.dir/home/lzx/myrtt/rt-thread/components/drivers/core/device.c.obj] Error 1
make[1]: *** [CMakeFiles/Makefile2:107: CMakeFiles/rtt_DeviceDrivers.dir/all] Error 2
```
我猜测是文件系统需要用到时间戳，而时间戳依赖RTC框架，但ESP32的RTC驱动并没有移植，这就导致了系统找不到time_t，不知道想得对不对