linux/scripts/mod/modpost.h at master · fabgithub/linux · GitHub

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#include <stdio.h>

#include <stdlib.h>

#include <stdarg.h>

#include <string.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/mman.h>

#include <fcntl.h>

#include <unistd.h>

#include <elf.h>

#include "elfconfig.h"

#if KERNEL_ELFCLASS == ELFCLASS32

#define Elf_Ehdr Elf32_Ehdr

#define Elf_Shdr Elf32_Shdr

#define Elf_Sym Elf32_Sym

#define Elf_Addr Elf32_Addr

#define Elf_Sword Elf64_Sword

#define Elf_Section Elf32_Half

#define ELF_ST_BIND ELF32_ST_BIND

#define ELF_ST_TYPE ELF32_ST_TYPE

#define Elf_Rel Elf32_Rel

#define Elf_Rela Elf32_Rela

#define ELF_R_SYM ELF32_R_SYM

#define ELF_R_TYPE ELF32_R_TYPE

#else

#define Elf_Ehdr Elf64_Ehdr

#define Elf_Shdr Elf64_Shdr

#define Elf_Sym Elf64_Sym

#define Elf_Addr Elf64_Addr

#define Elf_Sword Elf64_Sxword

#define Elf_Section Elf64_Half

#define ELF_ST_BIND ELF64_ST_BIND

#define ELF_ST_TYPE ELF64_ST_TYPE

#define Elf_Rel Elf64_Rel

#define Elf_Rela Elf64_Rela

#define ELF_R_SYM ELF64_R_SYM

#define ELF_R_TYPE ELF64_R_TYPE

#endif

/* The 64-bit MIPS ELF ABI uses an unusual reloc format. */

typedef struct

{

Elf32_Word r_sym; /* Symbol index */

unsigned char r_ssym; /* Special symbol for 2nd relocation */

unsigned char r_type3; /* 3rd relocation type */

unsigned char r_type2; /* 2nd relocation type */

unsigned char r_type1; /* 1st relocation type */

} _Elf64_Mips_R_Info;

typedef union

{

Elf64_Xword r_info_number;

_Elf64_Mips_R_Info r_info_fields;

} _Elf64_Mips_R_Info_union;

#define ELF64_MIPS_R_SYM(i) \

((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym)

#define ELF64_MIPS_R_TYPE(i) \

((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1)

#if KERNEL_ELFDATA != HOST_ELFDATA

static inline void __endian(const void *src, void *dest, unsigned int size)

{

unsigned int i;

for (i = 0; i < size; i++)

((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];

}

#define TO_NATIVE(x) \

({ \

typeof(x) __x; \

__endian(&(x), &(__x), sizeof(__x)); \

__x; \

})

#else /* endianness matches */

#define TO_NATIVE(x) (x)

#endif

#define NOFAIL(ptr) do_nofail((ptr), #ptr)

void *do_nofail(void *ptr, const char *expr);

struct buffer {

char *p;

int pos;

int size;

};

void __attribute__((format(printf, 2, 3)))

buf_printf(struct buffer *buf, const char *fmt, ...);

void

buf_write(struct buffer *buf, const char *s, int len);

struct module {

struct module *next;

const char *name;

int gpl_compatible;

struct symbol *unres;

int seen;

int skip;

int has_init;

int has_cleanup;

struct buffer dev_table_buf;

char srcversion[25];

int is_dot_o;

};

struct elf_info {

unsigned long size;

Elf_Ehdr *hdr;

Elf_Shdr *sechdrs;

Elf_Sym *symtab_start;

Elf_Sym *symtab_stop;

Elf_Section export_sec;

Elf_Section export_unused_sec;

Elf_Section export_gpl_sec;

Elf_Section export_unused_gpl_sec;

Elf_Section export_gpl_future_sec;

const char *strtab;

char *modinfo;

unsigned int modinfo_len;

/* support for 32bit section numbers */

unsigned int num_sections; /* max_secindex + 1 */

unsigned int secindex_strings;

/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,

* take shndx from symtab_shndx_start[N] instead */

Elf32_Word *symtab_shndx_start;

Elf32_Word *symtab_shndx_stop;

};

static inline int is_shndx_special(unsigned int i)

{

return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;

}

* Move reserved section indices SHN_LORESERVE..SHN_HIRESERVE out of

* the way to -256..-1, to avoid conflicting with real section

* indices.

#define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1))

/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */

static inline unsigned int get_secindex(const struct elf_info *info,

const Elf_Sym *sym)

{

if (is_shndx_special(sym->st_shndx))

return SPECIAL(sym->st_shndx);

if (sym->st_shndx != SHN_XINDEX)

return sym->st_shndx;

return info->symtab_shndx_start[sym - info->symtab_start];

}

/* file2alias.c */

extern unsigned int cross_build;

void handle_moddevtable(struct module *mod, struct elf_info *info,

Elf_Sym *sym, const char *symname);

void add_moddevtable(struct buffer *buf, struct module *mod);

/* sumversion.c */

void maybe_frob_rcs_version(const char *modfilename,

char *version,

void *modinfo,

unsigned long modinfo_offset);

void get_src_version(const char *modname, char sum[], unsigned sumlen);

/* from modpost.c */

void *grab_file(const char *filename, unsigned long *size);

char* get_next_line(unsigned long *pos, void *file, unsigned long size);

void release_file(void *file, unsigned long size);

void fatal(const char *fmt, ...);

void warn(const char *fmt, ...);

void merror(const char *fmt, ...);

linux/scripts/mod/modpost.h at master · fabgithub/linux · GitHub

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