kernel/extable.c

   1 /* Rewritten by Rusty Russell, on the backs of many others...
   2    Copyright (C) 2001 Rusty Russell, 2002 Rusty Russell IBM.
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17 */
  18 #include <linux/module.h>
  19 #include <linux/init.h>
  20
  21 #include <asm/semaphore.h>
  22
  23 extern const struct exception_table_entry __start___ex_table[];
  24 extern const struct exception_table_entry __stop___ex_table[];
  25 extern const struct kernel_symbol __start___ksymtab[];
  26 extern const struct kernel_symbol __stop___ksymtab[];
  27
  28 /* Protects extables and symbol tables */
  29 spinlock_t modlist_lock = SPIN_LOCK_UNLOCKED;
  30
  31 /* The exception and symbol tables: start with kernel only. */
  32 LIST_HEAD(extables);
  33 LIST_HEAD(symbols);
  34
  35 static struct exception_table kernel_extable;
  36 static struct kernel_symbol_group kernel_symbols;
  37
  38 void __init extable_init(void)
  39 {
  40         /* Add kernel symbols to symbol table */
  41         kernel_symbols.num_syms = (__stop___ksymtab - __start___ksymtab);
  42         kernel_symbols.syms = __start___ksymtab;
  43         list_add(&kernel_symbols.list, &symbols);
  44
  45         /* Add kernel exception table to exception tables */
  46         kernel_extable.num_entries = (__stop___ex_table -__start___ex_table);
  47         kernel_extable.entry = __start___ex_table;
  48         list_add(&kernel_extable.list, &extables);
  49 }
  50
  51