[BUG]RT-Stdio工程，自动初始化机制，BUG

发布于 2023-01-02 15:02:51 浏览：844 订阅该版

RTT中，某些组件的初始化函数，使用指定的宏进行修饰后，能够在启动的时候，进行隐式调用执行，我们姑且称之为自动初始化机制。
这种系统性的代码，按理说，我作为一个使用者是不用去研究的。
然而在使用过程中，出现了这样的情况：
==>在RT-Studio设置界面中，勾选(点亮)任何组件(DFS,elm,lua,mpy等)，编译烧写后，都会死机！！！
我使用仿真器对单板代码一行一行地仿真执行，发现问题果然在自动初始化机制上面。
代码执行到rt_components_init()这个函数，便死机了。
我一行一行去跟踪，确认了，是在读函数后，跳转时死机的，也就是这一句：

```c
result = desc->fn();
```
	rtdef.h头文件里面，我们发现几个这样的宏

```c
/* board init routines will be called in board_init() function */
#define INIT_BOARD_EXPORT(fn)           INIT_EXPORT(fn, "1")

/* pre/device/component/env/app init routines will be called in init_thread */
/* components pre-initialization (pure software initialization) */
#define INIT_PREV_EXPORT(fn)            INIT_EXPORT(fn, "2")
/* device initialization */
#define INIT_DEVICE_EXPORT(fn)          INIT_EXPORT(fn, "3")
/* components initialization (dfs, lwip, ...) */
#define INIT_COMPONENT_EXPORT(fn)       INIT_EXPORT(fn, "4")
/* environment initialization (mount disk, ...) */
#define INIT_ENV_EXPORT(fn)             INIT_EXPORT(fn, "5")
/* application initialization (rtgui application etc ...) */
#define INIT_APP_EXPORT(fn)             INIT_EXPORT(fn, "6")
```
这应该是分先后，分初始化等级，一共6个等级。
而在components.c中，却只实现了2个等级，我修改代码，将除了"board"以外的5个等级都编写一遍。也许以后用得上。

```c
static int rti_start(void)
{
    return 0;
}
INIT_EXPORT(rti_start, "0");

static int rti_board_start(void)
{
    return 0;
}
INIT_EXPORT(rti_board_start, "0.end");

static int rti_board_end(void)
{
    return 0;
}
INIT_EXPORT(rti_board_end, "1.end");
/*-----------------------------------*/
static int rti_prev_start(void)
{
    return 0;
}
INIT_EXPORT(rti_prev_start, "2");

static int rti_prev_end(void)
{
    return 0;
}
INIT_EXPORT(rti_prev_end, "2.end");
/*-----------------------------------*/
static int rti_device_start(void)
{
    return 0;
}
INIT_EXPORT(rti_device_start, "3");

static int rti_device_end(void)
{
    return 0;
}
INIT_EXPORT(rti_device_end, "3.end");
/*-----------------------------------*/
static int rti_component_start(void)
{
    return 0;
}
INIT_EXPORT(rti_component_start, "4");

static int rti_component_end(void)
{
    return 0;
}
INIT_EXPORT(rti_component_end, "4.end");
/*-----------------------------------*/
static int rti_env_start(void)
{
    return 0;
}
INIT_EXPORT(rti_env_start, "5");

static int rti_env_end(void)
{
    return 0;
}
INIT_EXPORT(rti_env_end, "5.end");
/*-----------------------------------*/
static int rti_app_start(void)
{
    return 0;
}
INIT_EXPORT(rti_app_start, "6");

static int rti_end(void)
{
    return 0;
}
INIT_EXPORT(rti_end, "6.end");

static void rt_auto_init_prev(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;

rt_kprintf("rt_auto_init_prev\r\n");
    for (desc = &__rt_init_desc_rti_prev_start; desc < &__rt_init_desc_rti_prev_end; desc ++)
    {
        //rti_prev_start
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
#warring    "please write code !"
#endif /* RT_DEBUG_INIT */
}

void rt_auto_init_device(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;

rt_kprintf("rt_auto_init_device\r\n");
    for (desc = &__rt_init_desc_rti_device_start; desc < &__rt_init_desc_rti_device_end; desc ++)
    {
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
#warring    "please write code !"
#endif /* RT_DEBUG_INIT */
}

static void rt_auto_init_component(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;

rt_kprintf("rt_auto_init_component\r\n");
    for (desc = &__rt_init_desc_rti_component_start; desc < &__rt_init_desc_rti_component_end; desc ++)
    {
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
#warring    "please write code !"
#endif /* RT_DEBUG_INIT */
}

static void rt_auto_init_env(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;

rt_kprintf("rt_auto_init_env\r\n");
    for (desc = &__rt_init_desc_rti_env_start; desc < &__rt_init_desc_rti_env_end; desc ++)
    {
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
#warring    "please write code !"
#endif /* RT_DEBUG_INIT */
}

static void rt_auto_init_app(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;

rt_kprintf("rt_auto_init_env\r\n");
    for (desc = &__rt_init_desc_rti_app_start; desc < &__rt_init_desc_rti_end; desc ++)
    {
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
#warring    "please write code !"
#endif /* RT_DEBUG_INIT */
}

```
然后修改原函数

```c
void rt_components_init(void)
{

rt_auto_init_prev();
    rt_auto_init_device();
    rt_auto_init_component();
        
    rt_auto_init_env();
    rt_auto_init_app();
}
```

这个时候，按理说，开机后可以清晰看到各等级初始化的过程了。

在RT-Studio中，使能虚拟文件系统，使能elm。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230102/61be9e0011a2464a8ea105e9ac0e29d2.png)
编译，烧写，启动后在初始化rti_component阶段死机，日志如下：

```c
 \ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Jan  2 2023 14:42:51
 2006 - 2022 Copyright by RT-Thread team
rt_auto_init_prev
initialize rti_prev_start:0 done
initialize rt_hw_spi_flash_with_sfud_initrt_hw_spi_flash_with_sfud_init -> 55
[I/SFUD] Find a Winbond flash chip. Size is 4194304 bytes.
[I/SFUD] wind25qx flash device is initialize success.
[I/SFUD] Probe SPI flash wind25qx by SPI device spi00 success.
SPI_FLASH_CHIP:wind25qx
SPI_FLASH_DEVICE_NAME:spi00
rt_hw_spi_flash_with_sfud_init -> 65
:0 done
rt_auto_init_device
initialize rti_device_start:0 done
rt_auto_init_component
initialize rti_component_start:0 done
initialize : 0x000f0000
r00: 0x0000000c
r01: 0x000000b5
r02: 0x0000000c
r03: 0x00020b3c
r04: 0xdeadbeef
r05: 0xdeadbeef
r06: 0xdeadbeef
r07: 0x20002c50
r08: 0xdeadbeef
r09: 0xdeadbeef
r10: 0xdeadbeef
r11: 0xdeadbeef
r12: 0xffffffff
 lr: 0x00001325
 pc: 0x00020b3c
hard fault on thread: main

thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tidle0    31  ready   0x00000044 0x00000100    26%   0x00000020 OK
main      10  running 0x00000044 0x00000800    25%   0x00000009 OK
usage fault:
SCB_CFSR_UFSR:0x02 INVSTATE 
```
对map文件进行分析，被修饰为自动初始化的函数，已经成功映射装填在对应的"x.start","x.end"之中：

```c
 *(SORT(.rti_fn*))
 .rti_fn.0      0x00021c94        0x8 ./rt-thread/src/components.o
                0x00021c94                __rt_init_desc_rti_start
 .rti_fn.0.end  0x00021c9c        0x8 ./rt-thread/src/components.o
                0x00021c9c                __rt_init_desc_rti_board_start
 .rti_fn.1      0x00021ca4        0x8 ./drivers/drv_gpio.o
                0x00021ca4                __rt_init_desc_rt_hw_pin_init
 .rti_fn.1      0x00021cac        0x8 ./drivers/drv_spi.o
                0x00021cac                __rt_init_desc_rt_hw_spi_init
 .rti_fn.1      0x00021cb4        0x8 ./drivers/drv_uart.o
                0x00021cb4                __rt_init_desc_rt_hw_uart_init
 .rti_fn.1.end  0x00021cbc        0x8 ./rt-thread/src/components.o
                0x00021cbc                __rt_init_desc_rti_board_end
 .rti_fn.2      0x00021cc4        0x8 ./rt-thread/src/components.o
                0x00021cc4                __rt_init_desc_rti_prev_start
 .rti_fn.2      0x00021ccc        0x8 ./drivers/drv_spi_flash.o
                0x00021ccc                __rt_init_desc_rt_hw_spi_flash_with_sfud_init
 .rti_fn.2.end  0x00021cd4        0x8 ./rt-thread/src/components.o
                0x00021cd4                __rt_init_desc_rti_prev_end
 .rti_fn.3      0x00021cdc        0x8 ./rt-thread/src/components.o
                0x00021cdc                __rt_init_desc_rti_device_start
 .rti_fn.3.end  0x00021ce4        0x8 ./rt-thread/src/components.o
                0x00021ce4                __rt_init_desc_rti_device_end
 .rti_fn.4      0x00021cec        0x8 ./rt-thread/src/components.o
                0x00021cec                __rt_init_desc_rti_component_start
 .rti_fn.4      0x00021cf4        0x4 ./rt-thread/components/dfs/src/dfs.o
                0x00021cf4                __rt_init_dfs_init
 .rti_fn.4      0x00021cf8        0x8 ./rt-thread/components/dfs/filesystems/elmfat/dfs_elm.o
                0x00021cf8                __rt_init_desc_elm_init
 .rti_fn.4.end  0x00021d00        0x8 ./rt-thread/src/components.o
                0x00021d00                __rt_init_desc_rti_component_end
 .rti_fn.5      0x00021d08        0x8 ./rt-thread/src/components.o
                0x00021d08                __rt_init_desc_rti_env_start
 .rti_fn.5.end  0x00021d10        0x8 ./rt-thread/src/components.o
                0x00021d10                __rt_init_desc_rti_env_end
 .rti_fn.6      0x00021d18        0x8 ./rt-thread/src/components.o
                0x00021d18                __rt_init_desc_rti_app_start
 .rti_fn.6      0x00021d20        0x8 ./rt-thread/components/finsh/shell.o
                0x00021d20                __rt_init_desc_finsh_system_init
 .rti_fn.6.end  0x00021d28        0x8 ./rt-thread/src/components.o
                0x00021d28                __rt_init_desc_rti_end
                0x00021d30                __rt_init_end = .
                0x00021d30                . = ALIGN (0x4)
                0x00021d30                . = ALIGN (0x4)
                0x00021d30                _etext = .
                0x00021d30                __exidx_start = .
```

解决办法，
①找到dfs.c，注释掉dfs_init函数自动初始化修饰的代码。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230102/29a091f03a97f00c787fc4f4ed00119d.png)
②找到dfs_elm.c，注释掉elm_init函数自动初始化修饰的代码。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230102/8b396d6baebc19ec32228afe69f558bf.png)
③在components.c中，显式调用这两个函数。死机的情况解除。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230102/2d11d97326ae620e9b7817eca8dae817.png)
最后，系统正常启动，dfs,elm功能皆正常。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230102/b0cac0143bd7c48ed4e022356fadce94.png)

本帖子编写于2023年1月2日，
桌面运行环境:win10 X64
RT-Studio 版本: 2.2.6
芯片平台：华芯微特SWM320
内存大小：128KB
存储大小：512KB

出出啊 2023-01-03

恃人不如自恃，人之为己者不如己之自为也

LinjieGuo 打赏了 5.00 元 2023-01-03 14:03:34

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

果然如您所言，在dfs.c下，添加这几行代码，

```c
#if ( 0 == RT_DEBUG_INIT)
#error "RT_DEBUG_INIT"
#endif

#ifndef RT_DEBUG_INIT
#error "RT_DEBUG_INIT"
#endif

int dfs_none(void)
{
    return 0;
}
INIT_COMPONENT_EXPORT(dfs_none);
```
系统启动了，并不会死机，
"[E/DFS] File system (elm) was not found."
==>说明DFS起来了，elm没有找到（因为elm我没有开启自动初始化）

```c
 \ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Jan  3 2023 08:45:11
 2006 - 2022 Copyright by RT-Thread team
do components initialization.
initialize rti_board_end:0 done
initialize rt_hw_spi_flash_with_sfud_initrt_hw_spi_flash_with_sfud_init -> 55
[I/SFUD] Find a Winbond flash chip. Size is 4194304 bytes.
[I/SFUD] wind25qx flash device is initialize success.
[I/SFUD] Probe SPI flash wind25qx by SPI device spi00 success.
SPI_FLASH_CHIP:wind25qx
SPI_FLASH_DEVICE_NAME:spi00
rt_hw_spi_flash_with_sfud_init -> 65
:0 done
initialize done
initialize rt_hw_spi_sd_card:0 done
initialize finsh_system_init:0 done
mount_spi_flash_filesystem
[D/FAL] (fal_flash_init:49) Flash device |                 wind25qx | addr: 0x00000000 | len: 0x00400000 | blk_size: 0x00001000 |initialized finish.
[I/FAL] ==================== FAL partition table ====================
[I/FAL] | name           | flash_dev |   offset   |    length  |
[I/FAL] -------------------------------------------------------------
[I/FAL] | sys_partition  | wind25qx  | 0x00000000 | 0x00100000 |
[I/FAL] | root_partition | wind25qx  | 0x00100000 | 0x00f00000 |
[I/FAL] =============================================================
[I/FAL] RT-Thread Flash Abstraction Layer initialize success.
[I/FAL] The FAL block device (root_partition) created successfully
Create a block device on the root_partition partition of flash successful.
elmfat filesystem mount failed.
[E/DFS] File system (elm) was not found.
make elmfat filesystem faild.
```

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

正常启动时，map文件片段：

```c
(VSymTab)
                0x0001e754                __vsymtab_end = .
                0x0001e754                . = ALIGN (0x4)
                0x0001e754                . = ALIGN (0x4)
                0x0001e754                __rt_init_start = .
 *(SORT(.rti_fn*))
 .rti_fn.0      0x0001e754        0x8 ./rt-thread/src/components.o
                0x0001e754                __rt_init_desc_rti_start
 .rti_fn.0.end  0x0001e75c        0x8 ./rt-thread/src/components.o
                0x0001e75c                __rt_init_desc_rti_board_start
 .rti_fn.1      0x0001e764        0x8 ./drivers/drv_gpio.o
                0x0001e764                __rt_init_desc_rt_hw_pin_init
 .rti_fn.1      0x0001e76c        0x8 ./drivers/drv_spi.o
                0x0001e76c                __rt_init_desc_rt_hw_spi_init
 .rti_fn.1      0x0001e774        0x8 ./drivers/drv_uart.o
                0x0001e774                __rt_init_desc_rt_hw_uart_init
 .rti_fn.1.end  0x0001e77c        0x8 ./rt-thread/src/components.o
                0x0001e77c                __rt_init_desc_rti_board_end
 .rti_fn.2      0x0001e784        0x8 ./drivers/drv_spi_flash.o
                0x0001e784                __rt_init_desc_rt_hw_spi_flash_with_sfud_init
 .rti_fn.4      0x0001e78c        0x8 ./rt-thread/components/dfs/src/dfs.o
                0x0001e78c                __rt_init_dfs_none
                0x0001e790                __rt_init_dfs_init
 .rti_fn.4      0x0001e794        0x8 ./drivers/drv_spi_sd_card.o
                0x0001e794                __rt_init_desc_rt_hw_spi_sd_card
 .rti_fn.6      0x0001e79c        0x8 ./rt-thread/components/finsh/shell.o
                0x0001e79c                __rt_init_desc_finsh_system_init
 .rti_fn.6.end  0x0001e7a4        0x8 ./rt-thread/src/components.o
                0x0001e7a4                __rt_init_desc_rti_end
                0x0001e7ac                __rt_init_end = .
                0x0001e7ac                . = ALIGN (0x4)
                0x0001e7ac                . = ALIGN (0x4)
                0x0001e7ac                _etext = .
                0x0001e7ac                __exidx_start = .
```

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

添加后，map文件，片段如下：

```c
 *(SORT(.rti_fn*))
 .rti_fn.0      0x0001e750        0x8 ./rt-thread/src/components.o
                0x0001e750                __rt_init_desc_rti_start
 .rti_fn.0.end  0x0001e758        0x8 ./rt-thread/src/components.o
                0x0001e758                __rt_init_desc_rti_board_start
 .rti_fn.1      0x0001e760        0x8 ./drivers/drv_gpio.o
                0x0001e760                __rt_init_desc_rt_hw_pin_init
 .rti_fn.1      0x0001e768        0x8 ./drivers/drv_spi.o
                0x0001e768                __rt_init_desc_rt_hw_spi_init
 .rti_fn.1      0x0001e770        0x8 ./drivers/drv_uart.o
                0x0001e770                __rt_init_desc_rt_hw_uart_init
 .rti_fn.1.end  0x0001e778        0x8 ./rt-thread/src/components.o
                0x0001e778                __rt_init_desc_rti_board_end
 .rti_fn.2      0x0001e780        0x8 ./drivers/drv_spi_flash.o
                0x0001e780                __rt_init_desc_rt_hw_spi_flash_with_sfud_init
 .rti_fn.4      0x0001e788        0x8 ./rt-thread/components/dfs/src/dfs.o
                0x0001e788                __rt_init_desc_dfs_init
 .rti_fn.4      0x0001e790        0x8 ./drivers/drv_spi_sd_card.o
                0x0001e790                __rt_init_desc_rt_hw_spi_sd_card
 .rti_fn.6      0x0001e798        0x8 ./rt-thread/components/finsh/shell.o
                0x0001e798                __rt_init_desc_finsh_system_init
 .rti_fn.6.end  0x0001e7a0        0x8 ./rt-thread/src/components.o
                0x0001e7a0                __rt_init_desc_rti_end
                0x0001e7a8                __rt_init_end = .
                0x0001e7a8                . = ALIGN (0x4)
                0x0001e7a8                . = ALIGN (0x4)
                0x0001e7a8                _etext = .
                0x0001e7a8                __exidx_start = .
```

出出啊 2023-01-03

恃人不如自恃，人之为己者不如己之自为也

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追加回复

2 个回答

张世争 2023-01-03

学以致用

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

感谢留言，一开始我也是有这个猜想，所以我已经修改component.c文件，对自动初始化机制，进行分级处理，并留下初始化的痕迹(流程)
通过测试发现，本帖的问题，并非是初始化先后问题。
现象是这样：
(1)map文件表明，对应的组件，已经成功映射链接了

```c
*(SORT(.rti_fn*))
 .rti_fn.0      0x00025c20        0x8 ./rt-thread/src/components.o
                0x00025c20                __rt_init_desc_rti_start
 .rti_fn.0.end  0x00025c28        0x8 ./rt-thread/src/components.o
                0x00025c28                __rt_init_desc_rti_board_start
 .rti_fn.1      0x00025c30        0x8 ./drivers/drv_gpio.o
                0x00025c30                __rt_init_desc_rt_hw_pin_init
 .rti_fn.1      0x00025c38        0x8 ./drivers/drv_spi.o
                0x00025c38                __rt_init_desc_rt_hw_spi_init
 .rti_fn.1      0x00025c40        0x8 ./drivers/drv_uart.o
                0x00025c40                __rt_init_desc_rt_hw_uart_init
 .rti_fn.1.end  0x00025c48        0x8 ./rt-thread/src/components.o
                0x00025c48                __rt_init_desc_rti_board_end
 .rti_fn.2      0x00025c50        0x8 ./rt-thread/src/components.o
                0x00025c50                __rt_init_desc_rti_prev_start
 .rti_fn.2      0x00025c58        0x8 ./drivers/drv_spi_flash.o
                0x00025c58                __rt_init_desc_rt_hw_spi_flash_with_sfud_init
 .rti_fn.2.end  0x00025c60        0x8 ./rt-thread/src/components.o
                0x00025c60                __rt_init_desc_rti_prev_end
 .rti_fn.3      0x00025c68        0x8 ./rt-thread/src/components.o
                0x00025c68                __rt_init_desc_rti_device_start
 .rti_fn.3.end  0x00025c70        0x8 ./rt-thread/src/components.o
                0x00025c70                __rt_init_desc_rti_device_end
 .rti_fn.4      0x00025c78        0x8 ./rt-thread/src/components.o
                0x00025c78                __rt_init_desc_rti_component_start
 .rti_fn.4      0x00025c80        0x4 ./rt-thread/components/dfs/src/dfs.o
                0x00025c80                __rt_init_dfs_init
 .rti_fn.4      0x00025c84        0x8 ./drivers/drv_spi_sd_card.o
                0x00025c84                __rt_init_desc_rt_hw_spi_sd_card
 .rti_fn.4.end  0x00025c8c        0x8 ./rt-thread/src/components.o
                0x00025c8c                __rt_init_desc_rti_component_end
 .rti_fn.5      0x00025c94        0x8 ./rt-thread/src/components.o
                0x00025c94                __rt_init_desc_rti_env_start
 .rti_fn.5.end  0x00025c9c        0x8 ./rt-thread/src/components.o
                0x00025c9c                __rt_init_desc_rti_env_end
 .rti_fn.6      0x00025ca4        0x8 ./rt-thread/src/components.o
                0x00025ca4                __rt_init_desc_rti_app_start
 .rti_fn.6      0x00025cac        0x8 ./rt-thread/components/finsh/shell.o
                0x00025cac                __rt_init_desc_finsh_system_init
 .rti_fn.6.end  0x00025cb4        0x8 ./rt-thread/src/components.o
```
②通过仿真，发现了，desc_name字符串名字是对的，但是函数却不对应的情况。

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230103/47ebbff6d42a0615181370e7f1f98752.png)

aozima 2023-01-03

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

[@aozima](https://club.rt-thread.org/u/43cae15c316f2f36)
论坛似乎限制了回复的长度，情况是这样，我发现RTT初始化等级，一共6个等级。
而在components.c中，却只实现了2个等级，便修改了代码，让6个初始化等级都有独立的函数，并打印流程。
我回复原来的代码后，情况是一样的，map文件如下：

```c
*(VSymTab)
                0x0001e710                __vsymtab_end = .
                0x0001e710                . = ALIGN (0x4)
                0x0001e710                . = ALIGN (0x4)
                0x0001e710                __rt_init_start = .
 *(SORT(.rti_fn*))
 .rti_fn.0      0x0001e710        0x8 ./rt-thread/src/components.o
                0x0001e710                __rt_init_desc_rti_start
 .rti_fn.0.end  0x0001e718        0x8 ./rt-thread/src/components.o
                0x0001e718                __rt_init_desc_rti_board_start
 .rti_fn.1      0x0001e720        0x8 ./drivers/drv_gpio.o
                0x0001e720                __rt_init_desc_rt_hw_pin_init
 .rti_fn.1      0x0001e728        0x8 ./drivers/drv_spi.o
                0x0001e728                __rt_init_desc_rt_hw_spi_init
 .rti_fn.1      0x0001e730        0x8 ./drivers/drv_uart.o
                0x0001e730                __rt_init_desc_rt_hw_uart_init
 .rti_fn.1.end  0x0001e738        0x8 ./rt-thread/src/components.o
                0x0001e738                __rt_init_desc_rti_board_end
 .rti_fn.2      0x0001e740        0x8 ./drivers/drv_spi_flash.o
                0x0001e740                __rt_init_desc_rt_hw_spi_flash_with_sfud_init
 .rti_fn.4      0x0001e748        0x4 ./rt-thread/components/dfs/src/dfs.o
                0x0001e748                __rt_init_dfs_init
 .rti_fn.4      0x0001e74c        0x8 ./drivers/drv_spi_sd_card.o
                0x0001e74c                __rt_init_desc_rt_hw_spi_sd_card
 .rti_fn.6      0x0001e754        0x8 ./rt-thread/components/finsh/shell.o
                0x0001e754                __rt_init_desc_finsh_system_init
 .rti_fn.6.end  0x0001e75c        0x8 ./rt-thread/src/components.o
                0x0001e75c                __rt_init_desc_rti_end
                0x0001e764                __rt_init_end = .
                0x0001e764                . = ALIGN (0x4)
                0x0001e764                . = ALIGN (0x4)
                0x0001e764                _etext = .
                0x0001e764                __exidx_start = .
```

LinjieGuo 2023-01-03

这家伙很懒，什么也没写！

aozima 2023-01-03

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

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