Contiki 2.5
dlloader.c
1 /*
2  * Copyright (c) 2005, Swedish Institute of Computer Science
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * This file is part of the Contiki operating system.
30  *
31  * @(#)$Id: dlloader.c,v 1.2 2008/02/07 15:53:43 oliverschmidt Exp $
32  */
33 #include <dlfcn.h>
34 #include <stddef.h>
35 #include <stdio.h>
36 
37 #include "contiki.h"
38 
39 /*---------------------------------------------------------------------------*/
40 int
41 dlloader_load(char *path, char *arg)
42 {
43  void *handle;
44  struct process **p;
45 
46  /* Load and link the program. */
47  handle = dlopen(path, RTLD_NOW);
48 
49  printf("Loading '%s'\n", path);
50 
51  if(handle == NULL) {
52  printf("dlloader_load: loading failed: %s\n", dlerror());
53  return LOADER_ERR_FMT;
54  }
55 
56  /* Find the processes to be started from the loaded program. */
57  p = dlsym(handle, "autostart_processes");
58  if(p == NULL) {
59  printf("dlloader_load: could not find symbol 'autostart_processes'\n");
60  return LOADER_ERR_FMT;
61  }
62 
63  /* Start the process. */
64 
65  printf("Starting '%s'\n", PROCESS_NAME_STRING(*p));
66  process_start(*p, arg);
67 
68  return LOADER_OK;
69 }
70 /*---------------------------------------------------------------------------*/