service.h

#pragma once
 
struct service_s {
 
    const char *s_name;
 
    void (*const svc_main)(void);
};
 
typedef struct service_s service_t;
 
#define _SERVICE(name, service_main) \
    __attribute__((used, section(".service_table"))) \
    static const service_t name = { #name, service_main }