LXR linux/arch/mips/include/asm/module.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_MODULE_H
   3#define _ASM_MODULE_H
   4
   5#include <linux/list.h>
   6#include <linux/elf.h>
   7#include <asm/extable.h>
   8
   9struct mod_arch_specific {
  10        /* Data Bus Error exception tables */
  11        struct list_head dbe_list;
  12        const struct exception_table_entry *dbe_start;
  13        const struct exception_table_entry *dbe_end;
  14        struct mips_hi16 *r_mips_hi16_list;
  15};
  16
  17typedef uint8_t Elf64_Byte;             /* Type for a 8-bit quantity.  */
  18
  19typedef struct {
  20        Elf64_Addr r_offset;                    /* Address of relocation.  */
  21        Elf64_Word r_sym;                       /* Symbol index.  */
  22        Elf64_Byte r_ssym;                      /* Special symbol.  */
  23        Elf64_Byte r_type3;                     /* Third relocation.  */
  24        Elf64_Byte r_type2;                     /* Second relocation.  */
  25        Elf64_Byte r_type;                      /* First relocation.  */
  26} Elf64_Mips_Rel;
  27
  28typedef struct {
  29        Elf64_Addr r_offset;                    /* Address of relocation.  */
  30        Elf64_Word r_sym;                       /* Symbol index.  */
  31        Elf64_Byte r_ssym;                      /* Special symbol.  */
  32        Elf64_Byte r_type3;                     /* Third relocation.  */
  33        Elf64_Byte r_type2;                     /* Second relocation.  */
  34        Elf64_Byte r_type;                      /* First relocation.  */
  35        Elf64_Sxword r_addend;                  /* Addend.  */
  36} Elf64_Mips_Rela;
  37
  38#ifdef CONFIG_32BIT
  39#define Elf_Shdr        Elf32_Shdr
  40#define Elf_Sym         Elf32_Sym
  41#define Elf_Ehdr        Elf32_Ehdr
  42#define Elf_Addr        Elf32_Addr
  43#define Elf_Rel         Elf32_Rel
  44#define Elf_Rela        Elf32_Rela
  45#define ELF_R_TYPE(X)   ELF32_R_TYPE(X)
  46#define ELF_R_SYM(X)    ELF32_R_SYM(X)
  47
  48#define Elf_Mips_Rel    Elf32_Rel
  49#define Elf_Mips_Rela   Elf32_Rela
  50
  51#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM((rel).r_info)
  52#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE((rel).r_info)
  53
  54#endif
  55
  56#ifdef CONFIG_64BIT
  57#define Elf_Shdr        Elf64_Shdr
  58#define Elf_Sym         Elf64_Sym
  59#define Elf_Ehdr        Elf64_Ehdr
  60#define Elf_Addr        Elf64_Addr
  61#define Elf_Rel         Elf64_Rel
  62#define Elf_Rela        Elf64_Rela
  63#define ELF_R_TYPE(X)   ELF64_R_TYPE(X)
  64#define ELF_R_SYM(X)    ELF64_R_SYM(X)
  65
  66#define Elf_Mips_Rel    Elf64_Mips_Rel
  67#define Elf_Mips_Rela   Elf64_Mips_Rela
  68
  69#define ELF_MIPS_R_SYM(rel) ((rel).r_sym)
  70#define ELF_MIPS_R_TYPE(rel) ((rel).r_type)
  71
  72#endif
  73
  74#ifdef CONFIG_MODULES
  75/* Given an address, look for it in the exception tables. */
  76const struct exception_table_entry*search_module_dbetables(unsigned long addr);
  77#else
  78/* Given an address, look for it in the exception tables. */
  79static inline const struct exception_table_entry *
  80search_module_dbetables(unsigned long addr)
  81{
  82        return NULL;
  83}
  84#endif
  85
  86#endif /* _ASM_MODULE_H */
  87