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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  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.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup generic
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef MODULE_H_
  36. #define MODULE_H_
  37.  
  38. #include <sys/types.h>
  39. #include <dynamic.h>
  40. #include <adt/list.h>
  41.  
  42. typedef struct module {
  43.     dyn_info_t dyn;
  44.     size_t bias;
  45.  
  46.     /** Array of pointers to directly dependent modules */
  47.     struct module **deps;
  48.     /** Number of fields in deps */
  49.     size_t n_deps;
  50.  
  51.     /** True iff relocations have already been processed in this module. */
  52.     bool relocated;
  53.  
  54.     /** Link to list of all modules in runtime environment */
  55.     link_t modules_link;
  56.  
  57.     /** Link to BFS queue. Only used when doing a BFS of the module graph */
  58.     link_t queue_link;
  59.     /** Tag for modules already processed during a BFS */
  60.     bool bfs_tag;
  61. } module_t;
  62.  
  63. void module_process_relocs(module_t *m);
  64. module_t *module_find(char *name);
  65. module_t *module_load(char *name);
  66. void module_load_deps(module_t *m);
  67.  
  68. void modules_process_relocs(module_t *start);
  69. void modules_untag(void);
  70.  
  71. #endif
  72.  
  73. /** @}
  74.  */
  75.