pios_initcall.h

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/* 
 * This program is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by 
 * the Free Software Foundation; either version 3 of the License, or 
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 
 * for more details.
 * 
 * You should have received a copy of the GNU General Public License along 
 * with this program; if not, see <http://www.gnu.org/licenses/>
 */

#ifndef PIOS_INITCALL_H
#define PIOS_INITCALL_H

typedef int32_t (*initcall_t)(void);
typedef struct {
        initcall_t fn_minit;
        initcall_t fn_tinit;
} initmodule_t;

/* Init module section */
extern initmodule_t *__module_initcall_start, *__module_initcall_end;

extern initmodule_t *__module_hipriinitcall_start, *__module_hipriinitcall_end;

#define MODULE_INITCALL(ifn, sfn) \
static void _add_init_fn(void) __attribute__((constructor)); \
static void _add_init_fn(void) { \
        __module_initcall_end->fn_minit = (ifn); \
        __module_initcall_end->fn_tinit = (sfn); \
        __module_initcall_end++; \
}

#define MODULE_HIPRI_INITCALL(ifn, sfn) \
static void _add_init_fn(void) __attribute__((constructor)); \
static void _add_init_fn(void) { \
        __module_hipriinitcall_end->fn_minit = (ifn); \
        __module_hipriinitcall_end->fn_tinit = (sfn); \
        __module_hipriinitcall_end++; \
}

#define MODULE_INITSYSTEM_DECLS \
static initmodule_t __module_initcalls[256]; \
static initmodule_t __module_hipriinitcalls[256]; \
initmodule_t *__module_initcall_start = __module_initcalls; \
initmodule_t *__module_initcall_end = __module_initcalls; \
initmodule_t *__module_hipriinitcall_start = __module_hipriinitcalls; \
initmodule_t *__module_hipriinitcall_end = __module_hipriinitcalls;

#define MODULE_INITIALISE_ALL(wdgfn)  { \
        for (initmodule_t *fn = __module_hipriinitcall_start; fn < __module_hipriinitcall_end; fn++) { \
                if (fn->fn_minit)                               \
                (fn->fn_minit)();                               \
                (wdgfn)();                                      \
        } ;                                                     \
        for (initmodule_t *fn = __module_initcall_start; fn < __module_initcall_end; fn++) { \
                if (fn->fn_minit)                               \
                (fn->fn_minit)();                               \
                (wdgfn)();                                      \
        }                                                       \
}

#define MODULE_TASKCREATE_ALL { \
        for (initmodule_t *fn = __module_hipriinitcall_start; fn < __module_hipriinitcall_end; fn++) { \
                if (fn->fn_tinit)                              \
                        (fn->fn_tinit)();                      \
        }                                                      \
        for (initmodule_t *fn = __module_initcall_start; fn < __module_initcall_end; fn++) { \
                if (fn->fn_tinit)                              \
                        (fn->fn_tinit)();                      \
        }                                                      \
}


#endif  /* PIOS_INITCALL_H */