kmodsrc/primary.c

   1 /*  Copyright (C) 2007-2008  Jeffrey Brian Arnold <jbarnold@mit.edu>
   2  *  Copyright (C) 2008  Anders Kaseorg <andersk@mit.edu>,
   3  *                      Tim Abbott <tabbott@mit.edu>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License, version 2.
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  16  *  02110-1301, USA.
  17  */
  18
  19 #ifdef KSPLICE_STANDALONE
  20 #include "ksplice.h"
  21 #else
  22 #include <linux/ksplice.h>
  23 #endif
  24
  25 extern const struct ksplice_reloc ksplice_relocs[], ksplice_relocs_end[];
  26 extern const struct ksplice_section ksplice_sections[], ksplice_sections_end[];
  27 extern struct ksplice_patch ksplice_patches[], ksplice_patches_end[];
  28 extern struct ksplice_export ksplice_exports[], ksplice_exports_end[];
  29 #ifdef KSPLICE_NEED_PARAINSTRUCTIONS
  30 extern struct paravirt_patch_site parainstructions[], parainstructions_end[];
  31 #endif
  32 #ifdef KSPLICE_STANDALONE
  33 extern struct ksplice_system_map ksplice_system_map[],
  34     ksplice_system_map_end[];
  35 #endif /* KSPLICE_STANDALONE */
  36
  37 #define pack KSPLICE_UNIQ(pack)
  38 struct ksplice_pack pack = {
  39         .name = "ksplice_" STR(KSPLICE_MID),
  40         .kid = STR(KSPLICE_KID),
  41         .target_name = STR(KSPLICE_TARGET),
  42 #ifdef KSPLICE_STANDALONE
  43         .map_printk = MAP_PRINTK,
  44 #endif /* KSPLICE_STANDALONE */
  45         .primary = THIS_MODULE,
  46         .primary_relocs = ksplice_relocs,
  47         .primary_relocs_end = ksplice_relocs_end,
  48         .primary_sections = ksplice_sections,
  49         .primary_sections_end = ksplice_sections_end,
  50         .patches = ksplice_patches,
  51         .patches_end = ksplice_patches_end,
  52         .exports = ksplice_exports,
  53         .exports_end = ksplice_exports_end,
  54 #ifdef KSPLICE_NEED_PARAINSTRUCTIONS
  55         .primary_parainstructions = parainstructions,
  56         .primary_parainstructions_end = parainstructions_end,
  57 #endif
  58 #ifdef KSPLICE_STANDALONE
  59         .primary_system_map = ksplice_system_map,
  60         .primary_system_map_end = ksplice_system_map_end,
  61 #endif /* KSPLICE_STANDALONE */
  62 };
  63 EXPORT_SYMBOL_GPL(pack);
  64
  65 static int init_primary(void)
  66 {
  67         return 0;
  68 }
  69
  70 static void cleanup_primary(void)
  71 {
  72         cleanup_ksplice_module(&pack);
  73 }
  74
  75 module_init(init_primary);
  76 module_exit(cleanup_primary);
  77
  78 MODULE_AUTHOR("Jeffrey Brian Arnold <jbarnold@mit.edu>");
  79 MODULE_DESCRIPTION("Ksplice rebootless update primary module");
  80 #ifdef KSPLICE_VERSION
  81 MODULE_VERSION(KSPLICE_VERSION);
  82 #endif
  83 MODULE_LICENSE("GPL v2");