894 lines
22 KiB
C
894 lines
22 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018/08/29 Bernard first version
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*/
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#include <rthw.h>
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#include "dlfcn.h"
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#include "dlmodule.h"
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#include "dlelf.h"
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#ifdef RT_USING_POSIX_FS
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#endif
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#define DBG_TAG "DLMD"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h> // must after of DEBUG_ENABLE or some other options
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static struct rt_module_symtab *_rt_module_symtab_begin = RT_NULL;
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static struct rt_module_symtab *_rt_module_symtab_end = RT_NULL;
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#if defined(__IAR_SYSTEMS_ICC__) /* for IAR compiler */
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#pragma section="RTMSymTab"
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#endif
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/* set the name of module */
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static void _dlmodule_set_name(struct rt_dlmodule *module, const char *path)
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{
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int size;
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struct rt_object *object;
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const char *first, *end, *ptr;
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object = &(module->parent);
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ptr = first = (char *)path;
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end = path + rt_strlen(path);
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while (*ptr != '\0')
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{
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if (*ptr == '/')
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first = ptr + 1;
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if (*ptr == '.')
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end = ptr - 1;
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ptr ++;
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}
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size = end - first + 1;
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if (size > RT_NAME_MAX) size = RT_NAME_MAX;
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rt_strncpy(object->name, first, size);
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object->name[size] = '\0';
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}
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#define RT_MODULE_ARG_MAX 8
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static int _rt_module_split_arg(char *cmd, rt_size_t length, char *argv[])
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{
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int argc = 0;
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char *ptr = cmd;
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while ((ptr - cmd) < length)
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{
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/* strip bank and tab */
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while ((*ptr == ' ' || *ptr == '\t') && (ptr - cmd) < length)
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*ptr++ = '\0';
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/* check whether it's the end of line */
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if ((ptr - cmd) >= length) break;
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/* handle string with quote */
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if (*ptr == '"')
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{
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argv[argc++] = ++ptr;
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/* skip this string */
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while (*ptr != '"' && (ptr - cmd) < length)
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if (*ptr ++ == '\\') ptr ++;
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if ((ptr - cmd) >= length) break;
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/* skip '"' */
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*ptr ++ = '\0';
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}
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else
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{
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argv[argc++] = ptr;
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while ((*ptr != ' ' && *ptr != '\t') && (ptr - cmd) < length)
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ptr ++;
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}
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if (argc >= RT_MODULE_ARG_MAX) break;
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}
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return argc;
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}
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/* invoked by main thread for exit */
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static void _dlmodule_exit(void)
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{
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struct rt_dlmodule *module;
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module = dlmodule_self();
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if (!module) return; /* not a module thread */
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rt_enter_critical();
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if (module->stat == RT_DLMODULE_STAT_RUNNING)
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{
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struct rt_object *object = RT_NULL;
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struct rt_list_node *node = RT_NULL;
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/* set stat to closing */
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module->stat = RT_DLMODULE_STAT_CLOSING;
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/* suspend all threads in this module */
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for (node = module->object_list.next; node != &(module->object_list); node = node->next)
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{
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object = rt_list_entry(node, struct rt_object, list);
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if ((object->type & ~RT_Object_Class_Static) == RT_Object_Class_Thread)
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{
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rt_thread_t thread = (rt_thread_t)object;
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/* stop timer and suspend thread*/
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if ((thread->stat & RT_THREAD_STAT_MASK) != RT_THREAD_CLOSE &&
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(thread->stat & RT_THREAD_STAT_MASK) != RT_THREAD_INIT)
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{
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rt_timer_stop(&(thread->thread_timer));
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rt_thread_suspend(thread);
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}
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}
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}
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}
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rt_exit_critical();
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return;
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}
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static void _dlmodule_thread_entry(void* parameter)
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{
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int argc = 0;
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char *argv[RT_MODULE_ARG_MAX];
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struct rt_dlmodule *module = (struct rt_dlmodule*)parameter;
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if (module == RT_NULL || module->cmd_line == RT_NULL)
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/* malloc for module_cmd_line failed. */
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return;
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if (module->cmd_line)
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{
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rt_memset(argv, 0x00, sizeof(argv));
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argc = _rt_module_split_arg((char *)module->cmd_line, rt_strlen(module->cmd_line), argv);
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if (argc == 0) goto __exit;
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}
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/* set status of module */
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module->stat = RT_DLMODULE_STAT_RUNNING;
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LOG_D("run main entry: 0x%p with %s",
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module->entry_addr,
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module->cmd_line);
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if (module->entry_addr)
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module->entry_addr(argc, argv);
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__exit:
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_dlmodule_exit();
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return ;
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}
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struct rt_dlmodule *dlmodule_create(void)
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{
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struct rt_dlmodule *module = RT_NULL;
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module = (struct rt_dlmodule*) rt_object_allocate(RT_Object_Class_Module, "module");
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if (module)
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{
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module->stat = RT_DLMODULE_STAT_INIT;
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/* set initial priority and stack size */
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module->priority = RT_THREAD_PRIORITY_MAX - 1;
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module->stack_size = 2048;
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rt_list_init(&(module->object_list));
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}
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return module;
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}
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void dlmodule_destroy_subthread(struct rt_dlmodule *module, rt_thread_t thread)
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{
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RT_ASSERT(thread->module_id == module);
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/* lock scheduler to prevent scheduling in cleanup function. */
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rt_enter_critical();
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/* remove thread from thread_list (ready or defunct thread list) */
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rt_list_remove(&(thread->tlist));
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if ((thread->stat & RT_THREAD_STAT_MASK) != RT_THREAD_CLOSE &&
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(thread->thread_timer.parent.type == (RT_Object_Class_Static | RT_Object_Class_Timer)))
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{
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/* release thread timer */
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rt_timer_detach(&(thread->thread_timer));
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}
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/* change stat */
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thread->stat = RT_THREAD_CLOSE;
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/* invoke thread cleanup */
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if (thread->cleanup != RT_NULL)
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thread->cleanup(thread);
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rt_exit_critical();
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#ifdef RT_USING_SIGNALS
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rt_thread_free_sig(thread);
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#endif
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if (thread->type & RT_Object_Class_Static)
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{
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/* detach object */
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rt_object_detach((rt_object_t)thread);
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}
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#ifdef RT_USING_HEAP
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else
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{
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/* release thread's stack */
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RT_KERNEL_FREE(thread->stack_addr);
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/* delete thread object */
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rt_object_delete((rt_object_t)thread);
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}
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#endif
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}
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rt_err_t dlmodule_destroy(struct rt_dlmodule* module)
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{
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int i;
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RT_DEBUG_NOT_IN_INTERRUPT;
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/* check parameter */
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if (module == RT_NULL)
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return -RT_ERROR;
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/* can not destroy a running module */
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if (module->stat == RT_DLMODULE_STAT_RUNNING)
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return -RT_EBUSY;
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/* do module cleanup */
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if (module->cleanup_func)
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{
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rt_enter_critical();
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module->cleanup_func(module);
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rt_exit_critical();
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}
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// list_object(&(module->object_list));
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/* cleanup for all kernel objects inside module*/
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{
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struct rt_object *object = RT_NULL;
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struct rt_list_node *node = RT_NULL;
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/* detach/delete all threads in this module */
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for (node = module->object_list.next; node != &(module->object_list); )
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{
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int object_type;
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object = rt_list_entry(node, struct rt_object, list);
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object_type = object->type & ~RT_Object_Class_Static;
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/* to next node */
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node = node->next;
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if (object->type & RT_Object_Class_Static)
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{
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switch (object_type)
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{
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case RT_Object_Class_Thread:
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dlmodule_destroy_subthread(module, (rt_thread_t)object);
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break;
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#ifdef RT_USING_SEMAPHORE
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case RT_Object_Class_Semaphore:
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rt_sem_detach((rt_sem_t)object);
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break;
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#endif
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#ifdef RT_USING_MUTEX
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case RT_Object_Class_Mutex:
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rt_mutex_detach((rt_mutex_t)object);
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break;
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#endif
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#ifdef RT_USING_EVENT
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case RT_Object_Class_Event:
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rt_event_detach((rt_event_t)object);
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break;
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#endif
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#ifdef RT_USING_MAILBOX
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case RT_Object_Class_MailBox:
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rt_mb_detach((rt_mailbox_t)object);
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break;
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#endif
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#ifdef RT_USING_MESSAGEQUEUE
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case RT_Object_Class_MessageQueue:
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rt_mq_detach((rt_mq_t)object);
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break;
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#endif
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#ifdef RT_USING_MEMHEAP
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case RT_Object_Class_MemHeap:
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rt_memheap_detach((struct rt_memheap*)object);
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break;
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#endif
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#ifdef RT_USING_MEMPOOL
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case RT_Object_Class_MemPool:
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rt_mp_detach((struct rt_mempool*)object);
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break;
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#endif
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case RT_Object_Class_Timer:
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rt_timer_detach((rt_timer_t)object);
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break;
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default:
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LOG_E("Unsupported oject type in module.");
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break;
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}
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}
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else
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{
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switch (object_type)
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{
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case RT_Object_Class_Thread:
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dlmodule_destroy_subthread(module, (rt_thread_t)object);
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break;
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#ifdef RT_USING_SEMAPHORE
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case RT_Object_Class_Semaphore:
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rt_sem_delete((rt_sem_t)object);
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break;
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#endif
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#ifdef RT_USING_MUTEX
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case RT_Object_Class_Mutex:
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rt_mutex_delete((rt_mutex_t)object);
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break;
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#endif
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#ifdef RT_USING_EVENT
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case RT_Object_Class_Event:
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rt_event_delete((rt_event_t)object);
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break;
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#endif
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#ifdef RT_USING_MAILBOX
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case RT_Object_Class_MailBox:
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rt_mb_delete((rt_mailbox_t)object);
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break;
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#endif
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#ifdef RT_USING_MESSAGEQUEUE
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case RT_Object_Class_MessageQueue:
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rt_mq_delete((rt_mq_t)object);
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break;
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#endif
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#ifdef RT_USING_MEMHEAP
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/* no delete operation */
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#endif
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#ifdef RT_USING_MEMPOOL
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case RT_Object_Class_MemPool:
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rt_mp_delete((struct rt_mempool*)object);
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break;
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#endif
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case RT_Object_Class_Timer:
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rt_timer_delete((rt_timer_t)object);
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break;
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default:
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LOG_E("Unsupported oject type in module.");
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break;
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}
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}
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}
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}
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if (module->cmd_line) rt_free(module->cmd_line);
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/* release module symbol table */
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for (i = 0; i < module->nsym; i ++)
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{
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rt_free((void *)module->symtab[i].name);
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}
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if (module->symtab != RT_NULL)
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{
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rt_free(module->symtab);
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}
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/* destory module */
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rt_free(module->mem_space);
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/* delete module object */
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rt_object_delete((rt_object_t)module);
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|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct rt_dlmodule *dlmodule_self(void)
|
||
|
|
{
|
||
|
|
rt_thread_t tid;
|
||
|
|
struct rt_dlmodule *ret = RT_NULL;
|
||
|
|
|
||
|
|
tid = rt_thread_self();
|
||
|
|
if (tid)
|
||
|
|
{
|
||
|
|
ret = (struct rt_dlmodule*) tid->module_id;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Compatible with old API
|
||
|
|
*/
|
||
|
|
struct rt_dlmodule *rt_module_self(void)
|
||
|
|
{
|
||
|
|
return dlmodule_self();
|
||
|
|
}
|
||
|
|
|
||
|
|
struct rt_dlmodule* dlmodule_load(const char* filename)
|
||
|
|
{
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
int fd = -1, length = 0;
|
||
|
|
#endif
|
||
|
|
rt_err_t ret = RT_EOK;
|
||
|
|
rt_uint8_t *module_ptr = RT_NULL;
|
||
|
|
struct rt_dlmodule *module = RT_NULL;
|
||
|
|
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
fd = open(filename, O_RDONLY, 0);
|
||
|
|
if (fd >= 0)
|
||
|
|
{
|
||
|
|
length = lseek(fd, 0, SEEK_END);
|
||
|
|
lseek(fd, 0, SEEK_SET);
|
||
|
|
|
||
|
|
if (length == 0) goto __exit;
|
||
|
|
|
||
|
|
module_ptr = (uint8_t*) rt_malloc (length);
|
||
|
|
if (!module_ptr) goto __exit;
|
||
|
|
|
||
|
|
if (read(fd, module_ptr, length) != length)
|
||
|
|
goto __exit;
|
||
|
|
|
||
|
|
/* close file and release fd */
|
||
|
|
close(fd);
|
||
|
|
fd = -1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (!module_ptr) goto __exit;
|
||
|
|
|
||
|
|
/* check ELF header */
|
||
|
|
if (rt_memcmp(elf_module->e_ident, RTMMAG, SELFMAG) != 0 &&
|
||
|
|
rt_memcmp(elf_module->e_ident, ELFMAG, SELFMAG) != 0)
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: magic error\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check ELF class */
|
||
|
|
if ((elf_module->e_ident[EI_CLASS] != ELFCLASS32)&&(elf_module->e_ident[EI_CLASS] != ELFCLASS64))
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: ELF class error\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
module = dlmodule_create();
|
||
|
|
if (!module) goto __exit;
|
||
|
|
|
||
|
|
/* set the name of module */
|
||
|
|
_dlmodule_set_name(module, filename);
|
||
|
|
|
||
|
|
LOG_D("rt_module_load: %.*s", RT_NAME_MAX, module->parent.name);
|
||
|
|
|
||
|
|
if (elf_module->e_type == ET_REL)
|
||
|
|
{
|
||
|
|
ret = dlmodule_load_relocated_object(module, module_ptr);
|
||
|
|
}
|
||
|
|
else if (elf_module->e_type == ET_DYN)
|
||
|
|
{
|
||
|
|
ret = dlmodule_load_shared_object(module, module_ptr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: unsupported elf type\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check return value */
|
||
|
|
if (ret != RT_EOK) goto __exit;
|
||
|
|
|
||
|
|
/* release module data */
|
||
|
|
rt_free(module_ptr);
|
||
|
|
|
||
|
|
/* increase module reference count */
|
||
|
|
module->nref ++;
|
||
|
|
|
||
|
|
/* deal with cache */
|
||
|
|
#ifdef RT_USING_CACHE
|
||
|
|
rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, module->mem_space, module->mem_size);
|
||
|
|
rt_hw_cpu_icache_ops(RT_HW_CACHE_INVALIDATE, module->mem_space, module->mem_size);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* set module initialization and cleanup function */
|
||
|
|
module->init_func = dlsym(module, "module_init");
|
||
|
|
module->cleanup_func = dlsym(module, "module_cleanup");
|
||
|
|
module->stat = RT_DLMODULE_STAT_INIT;
|
||
|
|
/* do module initialization */
|
||
|
|
if (module->init_func)
|
||
|
|
{
|
||
|
|
module->init_func(module);
|
||
|
|
}
|
||
|
|
|
||
|
|
return module;
|
||
|
|
|
||
|
|
__exit:
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
if (fd >= 0) close(fd);
|
||
|
|
#endif
|
||
|
|
if (module_ptr) rt_free(module_ptr);
|
||
|
|
if (module) dlmodule_destroy(module);
|
||
|
|
|
||
|
|
return RT_NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct rt_dlmodule* dlmodule_exec(const char* pgname, const char* cmd, int cmd_size)
|
||
|
|
{
|
||
|
|
struct rt_dlmodule *module = RT_NULL;
|
||
|
|
|
||
|
|
module = dlmodule_load(pgname);
|
||
|
|
if (module)
|
||
|
|
{
|
||
|
|
if (module->entry_addr)
|
||
|
|
{
|
||
|
|
/* exec this module */
|
||
|
|
rt_thread_t tid;
|
||
|
|
|
||
|
|
module->cmd_line = rt_strdup(cmd);
|
||
|
|
|
||
|
|
/* check stack size and priority */
|
||
|
|
if (module->priority > RT_THREAD_PRIORITY_MAX) module->priority = RT_THREAD_PRIORITY_MAX - 1;
|
||
|
|
if (module->stack_size < 2048 || module->stack_size > (1024 * 32)) module->stack_size = 2048;
|
||
|
|
|
||
|
|
tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module,
|
||
|
|
module->stack_size, module->priority, 10);
|
||
|
|
if (tid)
|
||
|
|
{
|
||
|
|
tid->module_id = module;
|
||
|
|
module->main_thread = tid;
|
||
|
|
|
||
|
|
rt_thread_startup(tid);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* destory dl module */
|
||
|
|
dlmodule_destroy(module);
|
||
|
|
module = RT_NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return module;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(RT_USING_CUSTOM_DLMODULE)
|
||
|
|
struct rt_dlmodule* dlmodule_load_custom(const char* filename, struct rt_dlmodule_ops* ops)
|
||
|
|
{
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
int fd = -1, length = 0;
|
||
|
|
#endif
|
||
|
|
rt_err_t ret = RT_EOK;
|
||
|
|
rt_uint8_t *module_ptr = RT_NULL;
|
||
|
|
struct rt_dlmodule *module = RT_NULL;
|
||
|
|
|
||
|
|
if (ops)
|
||
|
|
{
|
||
|
|
RT_ASSERT(ops->load);
|
||
|
|
RT_ASSERT(ops->unload);
|
||
|
|
module_ptr = ops->load(filename);
|
||
|
|
}
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
else
|
||
|
|
{
|
||
|
|
fd = open(filename, O_RDONLY, 0);
|
||
|
|
if (fd >= 0)
|
||
|
|
{
|
||
|
|
length = lseek(fd, 0, SEEK_END);
|
||
|
|
lseek(fd, 0, SEEK_SET);
|
||
|
|
|
||
|
|
if (length == 0) goto __exit;
|
||
|
|
|
||
|
|
module_ptr = (uint8_t*) rt_malloc (length);
|
||
|
|
if (!module_ptr) goto __exit;
|
||
|
|
|
||
|
|
if (read(fd, module_ptr, length) != length)
|
||
|
|
goto __exit;
|
||
|
|
|
||
|
|
/* close file and release fd */
|
||
|
|
close(fd);
|
||
|
|
fd = -1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (!module_ptr) goto __exit;
|
||
|
|
|
||
|
|
/* check ELF header */
|
||
|
|
if (rt_memcmp(elf_module->e_ident, RTMMAG, SELFMAG) != 0 &&
|
||
|
|
rt_memcmp(elf_module->e_ident, ELFMAG, SELFMAG) != 0)
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: magic error\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check ELF class */
|
||
|
|
if (elf_module->e_ident[EI_CLASS] != ELFCLASS32)
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: ELF class error\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
module = dlmodule_create();
|
||
|
|
if (!module) goto __exit;
|
||
|
|
|
||
|
|
/* set the name of module */
|
||
|
|
_dlmodule_set_name(module, filename);
|
||
|
|
|
||
|
|
LOG_D("rt_module_load: %.*s", RT_NAME_MAX, module->parent.name);
|
||
|
|
|
||
|
|
if (elf_module->e_type == ET_REL)
|
||
|
|
{
|
||
|
|
ret = dlmodule_load_relocated_object(module, module_ptr);
|
||
|
|
}
|
||
|
|
else if (elf_module->e_type == ET_DYN)
|
||
|
|
{
|
||
|
|
ret = dlmodule_load_shared_object(module, module_ptr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
rt_kprintf("Module: unsupported elf type\n");
|
||
|
|
goto __exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check return value */
|
||
|
|
if (ret != RT_EOK) goto __exit;
|
||
|
|
|
||
|
|
/* release module data */
|
||
|
|
if (ops)
|
||
|
|
{
|
||
|
|
ops->unload(module_ptr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
rt_free(module_ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* increase module reference count */
|
||
|
|
module->nref ++;
|
||
|
|
|
||
|
|
/* deal with cache */
|
||
|
|
#ifdef RT_USING_CACHE
|
||
|
|
rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, module->mem_space, module->mem_size);
|
||
|
|
rt_hw_cpu_icache_ops(RT_HW_CACHE_INVALIDATE, module->mem_space, module->mem_size);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* set module initialization and cleanup function */
|
||
|
|
module->init_func = dlsym(module, "module_init");
|
||
|
|
module->cleanup_func = dlsym(module, "module_cleanup");
|
||
|
|
module->stat = RT_DLMODULE_STAT_INIT;
|
||
|
|
/* do module initialization */
|
||
|
|
if (module->init_func)
|
||
|
|
{
|
||
|
|
module->init_func(module);
|
||
|
|
}
|
||
|
|
|
||
|
|
return module;
|
||
|
|
|
||
|
|
__exit:
|
||
|
|
#ifdef RT_USING_POSIX_FS
|
||
|
|
if (fd >= 0) close(fd);
|
||
|
|
#endif
|
||
|
|
if (module_ptr)
|
||
|
|
{
|
||
|
|
if (ops)
|
||
|
|
{
|
||
|
|
ops->unload(module_ptr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
rt_free(module_ptr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (module) dlmodule_destroy(module);
|
||
|
|
|
||
|
|
return RT_NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct rt_dlmodule* dlmodule_exec_custom(const char* pgname, const char* cmd, int cmd_size, struct rt_dlmodule_ops* ops)
|
||
|
|
{
|
||
|
|
struct rt_dlmodule *module = RT_NULL;
|
||
|
|
|
||
|
|
module = dlmodule_load_custom(pgname, ops);
|
||
|
|
if (module)
|
||
|
|
{
|
||
|
|
if (module->entry_addr)
|
||
|
|
{
|
||
|
|
/* exec this module */
|
||
|
|
rt_thread_t tid;
|
||
|
|
|
||
|
|
module->cmd_line = rt_strdup(cmd);
|
||
|
|
|
||
|
|
/* check stack size and priority */
|
||
|
|
if (module->priority > RT_THREAD_PRIORITY_MAX) module->priority = RT_THREAD_PRIORITY_MAX - 1;
|
||
|
|
if (module->stack_size < 2048 || module->stack_size > (1024 * 32)) module->stack_size = 2048;
|
||
|
|
|
||
|
|
tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module,
|
||
|
|
module->stack_size, module->priority, 10);
|
||
|
|
if (tid)
|
||
|
|
{
|
||
|
|
tid->module_id = module;
|
||
|
|
module->main_thread = tid;
|
||
|
|
|
||
|
|
rt_thread_startup(tid);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* destory dl module */
|
||
|
|
dlmodule_destroy(module);
|
||
|
|
module = RT_NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return module;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void dlmodule_exit(int ret_code)
|
||
|
|
{
|
||
|
|
rt_thread_t thread;
|
||
|
|
struct rt_dlmodule *module;
|
||
|
|
|
||
|
|
module = dlmodule_self();
|
||
|
|
if (!module) return;
|
||
|
|
|
||
|
|
/* disable scheduling */
|
||
|
|
rt_enter_critical();
|
||
|
|
|
||
|
|
/* module is not running */
|
||
|
|
if (module->stat != RT_DLMODULE_STAT_RUNNING)
|
||
|
|
{
|
||
|
|
/* restore scheduling */
|
||
|
|
rt_exit_critical();
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set return code */
|
||
|
|
module->ret_code = ret_code;
|
||
|
|
|
||
|
|
/* do exit for this module */
|
||
|
|
_dlmodule_exit();
|
||
|
|
/* the stat of module was changed to CLOSING in _dlmodule_exit */
|
||
|
|
|
||
|
|
thread = module->main_thread;
|
||
|
|
if ((thread->stat & RT_THREAD_STAT_MASK) == RT_THREAD_CLOSE)
|
||
|
|
{
|
||
|
|
/* main thread already closed */
|
||
|
|
rt_exit_critical();
|
||
|
|
|
||
|
|
return ;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* delete thread: insert to defunct thread list */
|
||
|
|
rt_thread_delete(thread);
|
||
|
|
/* enable scheduling */
|
||
|
|
rt_exit_critical();
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_uint32_t dlmodule_symbol_find(const char *sym_str)
|
||
|
|
{
|
||
|
|
/* find in kernel symbol table */
|
||
|
|
struct rt_module_symtab *index;
|
||
|
|
|
||
|
|
for (index = _rt_module_symtab_begin; index != _rt_module_symtab_end; index ++)
|
||
|
|
{
|
||
|
|
if (rt_strcmp(index->name, sym_str) == 0)
|
||
|
|
return (rt_uint32_t)index->addr;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int rt_system_dlmodule_init(void)
|
||
|
|
{
|
||
|
|
#if defined(__GNUC__) && !defined(__CC_ARM)
|
||
|
|
extern int __rtmsymtab_start;
|
||
|
|
extern int __rtmsymtab_end;
|
||
|
|
|
||
|
|
_rt_module_symtab_begin = (struct rt_module_symtab *)&__rtmsymtab_start;
|
||
|
|
_rt_module_symtab_end = (struct rt_module_symtab *)&__rtmsymtab_end;
|
||
|
|
#elif defined (__CC_ARM)
|
||
|
|
extern int RTMSymTab$$Base;
|
||
|
|
extern int RTMSymTab$$Limit;
|
||
|
|
|
||
|
|
_rt_module_symtab_begin = (struct rt_module_symtab *)&RTMSymTab$$Base;
|
||
|
|
_rt_module_symtab_end = (struct rt_module_symtab *)&RTMSymTab$$Limit;
|
||
|
|
#elif defined (__IAR_SYSTEMS_ICC__)
|
||
|
|
_rt_module_symtab_begin = __section_begin("RTMSymTab");
|
||
|
|
_rt_module_symtab_end = __section_end("RTMSymTab");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
INIT_COMPONENT_EXPORT(rt_system_dlmodule_init);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function will find the specified module.
|
||
|
|
*
|
||
|
|
* @param name the name of module finding
|
||
|
|
*
|
||
|
|
* @return the module
|
||
|
|
*/
|
||
|
|
struct rt_dlmodule *dlmodule_find(const char *name)
|
||
|
|
{
|
||
|
|
rt_object_t object;
|
||
|
|
struct rt_dlmodule *ret = RT_NULL;
|
||
|
|
|
||
|
|
object = rt_object_find(name, RT_Object_Class_Module);
|
||
|
|
if (object)
|
||
|
|
{
|
||
|
|
ret = (struct rt_dlmodule*) object;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
RTM_EXPORT(dlmodule_find);
|
||
|
|
|
||
|
|
int list_symbols(void)
|
||
|
|
{
|
||
|
|
extern int __rtmsymtab_start;
|
||
|
|
extern int __rtmsymtab_end;
|
||
|
|
|
||
|
|
/* find in kernel symbol table */
|
||
|
|
struct rt_module_symtab *index;
|
||
|
|
|
||
|
|
for (index = _rt_module_symtab_begin;
|
||
|
|
index != _rt_module_symtab_end;
|
||
|
|
index ++)
|
||
|
|
{
|
||
|
|
rt_kprintf("%s => 0x%08x\n", index->name, index->addr);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
MSH_CMD_EXPORT(list_symbols, list symbols information);
|
||
|
|
|
||
|
|
int list_module(void)
|
||
|
|
{
|
||
|
|
struct rt_dlmodule *module;
|
||
|
|
struct rt_list_node *list, *node;
|
||
|
|
struct rt_object_information *info;
|
||
|
|
|
||
|
|
info = rt_object_get_information(RT_Object_Class_Module);
|
||
|
|
list = &info->object_list;
|
||
|
|
|
||
|
|
rt_kprintf("module ref address \n");
|
||
|
|
rt_kprintf("-------- -------- ------------\n");
|
||
|
|
for (node = list->next; node != list; node = node->next)
|
||
|
|
{
|
||
|
|
module = (struct rt_dlmodule *)(rt_list_entry(node, struct rt_object, list));
|
||
|
|
rt_kprintf("%-*.*s %-04d 0x%08x\n",
|
||
|
|
RT_NAME_MAX, RT_NAME_MAX, module->parent.name, module->nref, module->mem_space);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
MSH_CMD_EXPORT(list_module, list modules in system);
|