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Diffstat (limited to 'elf/libelf.h')
| -rw-r--r-- | elf/libelf.h | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/elf/libelf.h b/elf/libelf.h deleted file mode 100644 index b6575b9..0000000 --- a/elf/libelf.h +++ /dev/null @@ -1,283 +0,0 @@ -/* Interface for manipulating ELF object files; functions found in -lelf. -Copyright (C) 1995 Free Software Foundation, Inc. -This file is part of the GNU C Library. - -The GNU C Library is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public License as -published by the Free Software Foundation; either version 2 of the -License, or (at your option) any later version. - -The GNU C Library is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with the GNU C Library; see the file COPYING.LIB. If -not, write to the Free Software Foundation, Inc., 675 Mass Ave, -Cambridge, MA 02139, USA. */ - -#ifndef _LIBELF_H -#define _LIBELF_H 1 - -#include <sys/cdefs.h> -#include <sys/types.h> -#include <elf.h> - -__BEGIN_DECLS - -/* Commands to operate on an Elf descriptor. - The meanings are slightly different for the different functions. */ -typedef enum -{ - ELF_C_NULL = 0, - ELF_C_READ, /* Read from the file. */ - ELF_C_WRITE, /* Write the file, ignoring old contents. */ - ELF_C_CLR, /* Clear specified flag bits. */ - ELF_C_SET, /* Set specified flag bits. */ - ELF_C_FDDONE, /* Close the fd; no further io will happen. */ - ELF_C_FDREAD, /* Read the whole file, then close it. */ - ELF_C_RDWR, /* Read from and modify the file. */ - ELF_C_NUM /* Number of valid command values. */ -} Elf_Cmd; - - -/* Flag bits for `elf_flag*'. */ -#define ELF_F_DIRTY 0x1 /* Object is */ -#define ELF_F_LAYOUT 0x4 - - -/* File types. */ -typedef enum -{ - ELF_K_NONE = 0, - ELF_K_AR, - ELF_K_COFF, /* The GNU -lelf does not support COFF. */ - ELF_K_ELF, - ELF_K_NUM /* Number of valid file kinds. */ -} Elf_Kind; - - -/* Translation types. */ -typedef enum -{ - ELF_T_BYTE = 0, - ELF_T_ADDR, - ELF_T_DYN, - ELF_T_EHDR, - ELF_T_HALF, - ELF_T_OFF, - ELF_T_PHDR, - ELF_T_RELA, - ELF_T_REL, - ELF_T_SHDR, - ELF_T_SWORD, - ELF_T_SYM, - ELF_T_WORD, - ELF_T_NUM -} Elf_Type; - - -/* These types are opaque to user code; only pointers to them are used. */ -typedef struct Elf Elf; -typedef struct Elf_Scn Elf_Scn; - - -/* Archive member header. */ -typedef struct -{ - char *ar_name; - time_t ar_date; - uid_t ar_uid; - gid_t ar_gid; - mode_t ar_mode; - off_t ar_size; - char *ar_rawname; -} Elf_Arhdr; - -/* Archive symbol table. */ -typedef struct -{ - char *as_name; - size_t as_off; - unsigned long int as_hash; -} Elf_Arsym; - - -/* Data descriptor. */ -typedef struct -{ - void *d_buf; - Elf_Type d_type; - size_t d_size; - off_t d_off; /* Offset into section. */ - size_t d_align; /* Alignment in section. */ - unsigned int d_version; /* ELF version. */ -} Elf_Data; - - - -/* Open an Elf descriptor on file descriptor FD. - REF is the Elf descriptor for the containing archive (to open a member); - or the descriptor previously returned for FD (to add a user reference); - or NULL. */ -extern Elf *elf_begin __P ((int __fd, Elf_Cmd __cmd, Elf *__ref)); - -/* Finish using ELF (remove a user reference); if this is the last user - reference, its data will be freed. */ -extern int elf_end __P ((Elf *__elf)); - -/* Control the library's access to the file descriptor for ELF. - CMD is either ELF_C_FDDONE or ELF_C_FDREAD. */ -extern int elf_cntl __P ((Elf *__elf, Elf_Cmd __cmd)); - - -/* Return a string describing an ELF error number. */ -extern __const char *elf_errmsg __P ((int __errno)); - -/* Return the ELF error number for the last failed operation. */ -extern int elf_errno __P ((void)); - -/* Set the byte value used to fill sections for alignment. */ -extern void elf_fill __P ((int __fillchar)); - -/* The following functions `elf_flag*' all operate the same way: - CMD is either ELF_C_SET or ELF_C_CLR; FLAGS are `ELF_F_*' above, - which are set or cleared for the object the call relates to. */ - -/* Modify flags affecting the file as a whole (?). */ -extern unsigned int elf_flagelf __P ((Elf *__elf, Elf_Cmd __cmd, - unsigned int __flags)); -/* Modify flags affecting DATA. */ -extern unsigned int elf_flagdata __P ((Elf_Data *__data, Elf_Cmd __cmd, - unsigned int __flags)); -/* Modify flags affecting the ELF header. */ -extern unsigned int elf_flagehdr __P ((Elf *__elf, Elf_Cmd __cmd, - unsigned int __flags)); -/* Modify flags affecting the ELF program header. */ -extern unsigned int elf_flagphdr __P ((Elf *__elf, Elf_Cmd __cmd, - unsigned int __flags)); -/* Modify flags affecting the given section's data. */ -extern unsigned int elf_flagscn __P ((Elf_Scn *__scn, Elf_Cmd __cmd, - unsigned int __flags)); -/* Modify flags affecting the given section's header. */ -extern unsigned int elf_flagshdr __P ((Elf_Scn *__scn, Elf_Cmd __cmd, - unsigned int __flags)); - - -extern size_t elf32_fsize __P ((Elf_Type __type, size_t __count, - unsigned int __ver)); - -/* Return the archive header for ELF, which must describe an archive. */ -extern Elf_Arhdr *elf_getarhdr __P ((Elf *__elf)); - -/* Return the archive symbol table for ELF, and store - in *NELTSP the number of elements in the table. */ -extern Elf_Arsym *elf_getarsym __P ((Elf *__elf, size_t *__neltsp)); - -/* Return the file offset for the beginning of ELF. - If ELF describes an archive member, this points to the member header. */ -extern off_t elf_getbase __P ((Elf *__elf)); - -/* Extract the data from a section. */ -extern Elf_Data *elf_getdata __P ((Elf_Scn *__scn, Elf_Data *__data)); - -/* Extract the ELF header from the file. */ -extern Elf32_Ehdr *elf32_getehdr __P ((Elf *__elf)); - -/* Extract the initial ELF identification bytes from the file. - If PTR is nonnull, the number of identification bytes is stored there. */ -extern char *elf_getident __P((Elf *__elf, size_t *__ptr)); - -/* Extract the ELF program header from the file. */ -extern Elf32_Phdr *elf32_getphdr __P ((Elf *__elf)); - -/* Extract the indicated section from the file. */ -extern Elf_Scn *elf_getscn __P ((Elf *__elf, size_t __index)); - -/* Extract the section header from the section. */ -extern Elf32_Shdr *elf32_getshdr __P ((Elf_Scn *__scn)); - -/* Return the index of the section following SCN. */ -extern size_t elf_ndxscn __P ((Elf_Scn *__scn)); - - -/* Standard ELF symbol name hash function. */ -extern unsigned long int elf_hash __P ((__const char *__name)); - -#if defined (__OPTIMIZE__) || defined (_EXTERN_INLINE) -#ifndef _EXTERN_INLINE -#define _EXTERN_INLINE extern __inline -#endif -_EXTERN_INLINE unsigned long int -elf_hash (__const char *__name) -{ - /* This is the hashing function specified by the ELF ABI. */ - unsigned long int __hash = 0; - while (*__name != '\0') - { - unsigned long int __hi; - __hash = (__hash << 4) + *__name++; - __hi = __hash & 0xf0000000; - if (__hi != 0) - { - __hash ^= __hi >> 24; - /* The ELF ABI says `hash &= ~hi', but this is equivalent - in this case and on some machines one insn instead of two. */ - __hash ^= __hi; - } - } - return __hash; -} -#endif - -/* Return the kind of file ELF describes. */ -extern Elf_Kind elf_kind __P ((Elf *__elf)); - -extern Elf_Data *elf_newdata __P ((Elf_Scn *__scn)); - -/* Create the ELF header for ELF. */ -extern Elf32_Ehdr *elf32_newehdr __P ((Elf *__elf)); - -/* Create the program header for ELF, with COUNT segments. */ -extern Elf32_Phdr *elf32_newphdr __P ((Elf *__elf, size_t __count)); - -/* Create a new section in ELF. */ -extern Elf_Scn *elf_newscn __P ((Elf *__elf)); - -/* Return the section following SCN. */ -extern Elf_Scn *elf_nextscn __P ((Elf *__elf, Elf_Scn *__scn)); - -/* Set up ELF to read the next archive member. */ -extern Elf_Cmd elf_next __P ((Elf *__elf)); - -/* Set up ELF (which must describe an archive) to read the - archive member that starts at file position OFFSET. */ -extern size_t elf_rand __P ((Elf *__elf, size_t __offset)); - -extern Elf_Data *elf_rawdata __P ((Elf_Scn *__scn, Elf_Data *__data)); - -/* Read the entire file into memory; store its size in *PTR. */ -extern char *elf_rawfile __P ((Elf *__elf, size_t *__ptr)); - -/* Return a pointer to the string at OFFSET bytes into the string table. - SECTION is the index of the SHT_STRTAB section in ELF. */ -extern char *elf_strptr __P ((Elf *__elf, size_t __section, size_t __offset)); - -/* If CMD is ELF_C_NULL, update ELF's data structures based on any - user modifications, and set the ELF_F_DIRTY flag if anything changed. - If CMD is ELF_C_WRITE, do that and then write the changes to the file. */ -extern off_t elf_update __P ((Elf *__elf, Elf_Cmd __cmd)); - -/* Handle ELF version VER. Return the old version handled, - or EV_NONE if VER is unrecognized. */ -extern unsigned int elf_version __P ((unsigned int __ver)); - -extern Elf_Data *elf32_xlatetof __P ((Elf_Data *__dst, const Elf_Data *__src, - unsigned int __encode)); -extern Elf_Data *elf32_xlatetom __P ((Elf_Data *__dst, const Elf_Data *__src, - unsigned int __encode)); - -__END_DECLS - -#endif /* _LIBELF_H */ |