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[sections:plugins_desc]
entries:
    .init_fn+

[scheme:plugins_desc_default]
entries:
    plugins_desc -> flash_rodata

[mapping:plugins_desc]
archive: *
entries:
    * (plugins_desc_default);
        plugins_desc -> flash_rodata KEEP() SORT(name) SURROUND(init)

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// @brief 定义各个模块
typedef struct init_desc {
    char name[CONFIG_MODULE_NAME_LEN];
    int priority;       // 任务优先级：0为最低
    int core;           // 运行在哪个核, 0, 1, tskNO_AFFINITY:不指定
    int stack_size;     // 堆栈大小，单位字节
    int (*init)(struct init_desc *self);
    void (*thread)(struct init_desc *self);
    void* priv_data;     // 一些参数
} init_desc_t;

/** @brief 通过该宏实现定义一个初始化描述变量，初始化系统会根据设置的参数进行按顺序初始化和启动
 *  @param nm           模块名称
 *  @param priv         本模块私有的一些数据的指针
 *  @param level        模块级别，字符串，字符串排序越小越先初始化和执行
 *  @param init_func    初始化函数，类型为：int (*)(init_desc_t *self)
 *  @param run_core     运行在哪个核, tskNO_AFFINITY:不指定
 *  @param run_stack_size   堆栈大小，单位字节
 *  @param thread_priority  线程优先级 tskIDLE_PRIORITY 到 configMAX_PRIORITIES-1
 *  @param thread_func
*/
#define INIT_FN_EXPORT(nm, priv, level, init_func, run_core, run_stack_size, thread_priority, thread_func) \
    static __attribute__((section(".init_fn" level),used)) \
        init_desc_t init_fn_##nm = { \
            .name = #nm, \
            .priority = (thread_priority), \
            .core = (run_core), \
            .stack_size = (run_stack_size), \
            .init = (init_func), \
            .thread = (thread_func), \
            .priv_data = (priv), \
        };

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                0x3c040120                        _init_start = ABSOLUTE (.)
 *(SORT_BY_NAME(.init_fn) SORT_BY_NAME(.init_fn.*))
                0x3c040120                        _init_end = ABSOLUTE (.)

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                0x3c04f9c0                        _esp_system_init_fn_array_start = ABSOLUTE (.)
 *(SORT_BY_INIT_PRIORITY(.esp_system_init_fn.*))
 .esp_system_init_fn.100
                0x3c04f9c0        0x8 esp-idf/esp_timer/libesp_timer.a(esp_timer.c.obj)
 .esp_system_init_fn.105
                0x3c04f9c8        0x8 esp-idf/esp_hw_support/libesp_hw_support.a(sleep_gpio.c.obj)
 .esp_system_init_fn.200
                0x3c04f9d0        0x8 esp-idf/esp_system/libesp_system.a(startup.c.obj)
                0x3c04f9d8                        _esp_system_init_fn_array_end = ABSOLUTE (.)

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Linux MAGIC14-WSL 5.15.133.1-microsoft-standard-WSL2 #1 SMP Thu Oct 5 21:02:42 UTC 2023 x86_64 GNU/Linux
Debian GNU/Linux 12

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#define INIT_FN_EXPORT(nm, priv, level, init_func, run_core, run_stack_size, thread_priority, thread_func) \
    static __attribute__((section(".init_fn." #level),used)) \
        init_desc_t init_fn_##nm = { \
            .name = #nm, \
            .priority = (thread_priority), \
            .core = (run_core), \
            .stack_size = (run_stack_size), \
            .init = (init_func), \
            .thread = (thread_func), \
            .priv_data = (priv), \
        };