include/linux/extable.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_EXTABLE_H
   3 #define _LINUX_EXTABLE_H
   4
   5 #include <linux/stddef.h>       /* for NULL */
   6 #include <linux/types.h>
   7
   8 struct module;
   9 struct exception_table_entry;
  10
  11 const struct exception_table_entry *
  12 search_extable(const struct exception_table_entry *base,
  13                const size_t num,
  14                unsigned long value);
  15 void sort_extable(struct exception_table_entry *start,
  16                   struct exception_table_entry *finish);
  17 void sort_main_extable(void);
  18 void trim_init_extable(struct module *m);
  19
  20 /* Given an address, look for it in the exception tables */
  21 const struct exception_table_entry *search_exception_tables(unsigned long add);
  22 const struct exception_table_entry *
  23 search_kernel_exception_table(unsigned long addr);
  24
  25 #ifdef CONFIG_MODULES
  26 /* For extable.c to search modules' exception tables. */
  27 const struct exception_table_entry *search_module_extables(unsigned long addr);
  28 #else
  29 static inline const struct exception_table_entry *
  30 search_module_extables(unsigned long addr)
  31 {
  32         return NULL;
  33 }
  34 #endif /*CONFIG_MODULES*/
  35
  36 #ifdef CONFIG_BPF_JIT
  37 const struct exception_table_entry *search_bpf_extables(unsigned long addr);
  38 #else
  39 static inline const struct exception_table_entry *
  40 search_bpf_extables(unsigned long addr)
  41 {
  42         return NULL;
  43 }
  44 #endif
  45
  46 #endif /* _LINUX_EXTABLE_H */