rt-thread-official/components/libc/posix/libdl/dlmodule.h

88 lines
2.5 KiB
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018/08/11 Bernard the first version
*/
#ifndef RT_DL_MODULE_H__
#define RT_DL_MODULE_H__
#include <rtthread.h>
#define RT_DLMODULE_STAT_INIT 0x00
#define RT_DLMODULE_STAT_RUNNING 0x01
#define RT_DLMODULE_STAT_CLOSING 0x02
#define RT_DLMODULE_STAT_CLOSED 0x03
struct rt_dlmodule;
typedef void* rt_addr_t;
typedef void (*rt_dlmodule_init_func_t)(struct rt_dlmodule *module);
typedef void (*rt_dlmodule_cleanup_func_t)(struct rt_dlmodule *module);
typedef int (*rt_dlmodule_entry_func_t)(int argc, char** argv);
struct rt_dlmodule
{
struct rt_object parent;
rt_list_t object_list; /* objects inside this module */
rt_uint8_t stat; /* status of module */
/* main thread of this module */
rt_uint16_t priority;
rt_uint32_t stack_size;
struct rt_thread *main_thread;
/* the return code */
int ret_code;
/* VMA base address for the first LOAD segment */
rt_uint32_t vstart_addr;
/* module entry, RT_NULL for dynamic library */
rt_dlmodule_entry_func_t entry_addr;
char *cmd_line; /* command line */
rt_addr_t mem_space; /* memory space */
rt_uint32_t mem_size; /* sizeof memory space */
/* init and clean function */
rt_dlmodule_init_func_t init_func;
rt_dlmodule_cleanup_func_t cleanup_func;
rt_uint16_t nref; /* reference count */
rt_uint16_t nsym; /* number of symbols in the module */
struct rt_module_symtab *symtab; /* module symbol table */
};
struct rt_dlmodule_ops
{
rt_uint8_t *(*load)(const char* filename); /* load dlmodule file data */
rt_err_t (*unload)(rt_uint8_t *param); /* unload dlmodule file data */
};
struct rt_dlmodule *dlmodule_create(void);
rt_err_t dlmodule_destroy(struct rt_dlmodule* module);
struct rt_dlmodule *dlmodule_self(void);
struct rt_dlmodule *dlmodule_load(const char* pgname);
struct rt_dlmodule *dlmodule_exec(const char* pgname, const char* cmd, int cmd_size);
#if defined(RT_USING_CUSTOM_DLMODULE)
struct rt_dlmodule* dlmodule_load_custom(const char* filename, struct rt_dlmodule_ops* ops);
struct rt_dlmodule* dlmodule_exec_custom(const char* pgname, const char* cmd, int cmd_size, struct rt_dlmodule_ops* ops);
#endif
void dlmodule_exit(int ret_code);
struct rt_dlmodule *dlmodule_find(const char *name);
rt_uint32_t dlmodule_symbol_find(const char *sym_str);
#endif