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Current File : //usr/include/libelf.h |
/*- * Copyright (c) 2006 Joseph Koshy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/lib/libelf/libelf.h 210345 2010-07-21 12:14:50Z kaiw $ */ #ifndef _LIBELF_H_ #define _LIBELF_H_ #include <sys/types.h> #include <sys/elf32.h> #include <sys/elf64.h> #include <sys/queue.h> /* Library private data structures */ typedef struct _Elf Elf; typedef struct _Elf_Scn Elf_Scn; /* File types */ typedef enum { ELF_K_NONE = 0, ELF_K_AR, /* `ar' archives */ ELF_K_COFF, /* COFF files (unsupported) */ ELF_K_ELF, /* ELF files */ ELF_K_NUM } Elf_Kind; #define ELF_K_FIRST ELF_K_NONE #define ELF_K_LAST ELF_K_NUM /* Data types */ typedef enum { ELF_T_ADDR, ELF_T_BYTE, ELF_T_CAP, ELF_T_DYN, ELF_T_EHDR, ELF_T_HALF, ELF_T_LWORD, ELF_T_MOVE, ELF_T_MOVEP, ELF_T_NOTE, ELF_T_OFF, ELF_T_PHDR, ELF_T_REL, ELF_T_RELA, ELF_T_SHDR, ELF_T_SWORD, ELF_T_SXWORD, ELF_T_SYMINFO, ELF_T_SYM, ELF_T_VDEF, ELF_T_VNEED, ELF_T_WORD, ELF_T_XWORD, ELF_T_GNUHASH, /* GNU style hash tables. */ ELF_T_NUM } Elf_Type; #define ELF_T_FIRST ELF_T_ADDR #define ELF_T_LAST ELF_T_GNUHASH /* Commands */ typedef enum { ELF_C_NULL = 0, ELF_C_CLR, ELF_C_FDDONE, ELF_C_FDREAD, ELF_C_RDWR, ELF_C_READ, ELF_C_SET, ELF_C_WRITE, ELF_C_NUM } Elf_Cmd; #define ELF_C_FIRST ELF_C_NULL #define ELF_C_LAST ELF_C_NUM /* * An `Elf_Data' structure describes data in an * ELF section. */ typedef struct _Elf_Data { /* * `Public' members that are part of the ELF(3) API. */ uint64_t d_align; void *d_buf; uint64_t d_off; uint64_t d_size; Elf_Type d_type; unsigned int d_version; /* * Members that are not part of the public API. */ Elf_Scn *d_scn; /* containing section */ unsigned int d_flags; STAILQ_ENTRY(_Elf_Data) d_next; } Elf_Data; /* * An `Elf_Arhdr' structure describes an archive * header. */ typedef struct { time_t ar_date; char *ar_name; /* archive member name */ gid_t ar_gid; mode_t ar_mode; char *ar_rawname; /* 'raw' member name */ size_t ar_size; uid_t ar_uid; } Elf_Arhdr; /* * An `Elf_Arsym' describes an entry in the archive * symbol table. */ typedef struct { off_t as_off; /* byte offset to member's header */ unsigned long as_hash; /* elf_hash() value for name */ char *as_name; /* null terminated symbol name */ } Elf_Arsym; /* * Error numbers. */ enum Elf_Error { ELF_E_NONE, /* No error */ ELF_E_ARCHIVE, /* Malformed ar(1) archive */ ELF_E_ARGUMENT, /* Invalid argument */ ELF_E_CLASS, /* Mismatched ELF class */ ELF_E_DATA, /* Invalid data descriptor */ ELF_E_HEADER, /* Missing or malformed ELF header */ ELF_E_IO, /* I/O error */ ELF_E_LAYOUT, /* Layout constraint violation */ ELF_E_MODE, /* Wrong mode for ELF descriptor */ ELF_E_RANGE, /* Value out of range */ ELF_E_RESOURCE, /* Resource exhaustion */ ELF_E_SECTION, /* Invalid section descriptor */ ELF_E_SEQUENCE, /* API calls out of sequence */ ELF_E_UNIMPL, /* Feature is unimplemented */ ELF_E_VERSION, /* Unknown API version */ ELF_E_NUM /* Max error number */ }; /* * Flags defined by the API. */ #define ELF_F_LAYOUT 0x001U /* application will layout the file */ #define ELF_F_DIRTY 0x002U /* a section or ELF file is dirty */ __BEGIN_DECLS Elf *elf_begin(int _fd, Elf_Cmd _cmd, Elf *_elf); int elf_cntl(Elf *_elf, Elf_Cmd _cmd); int elf_end(Elf *_elf); const char *elf_errmsg(int _error); int elf_errno(void); void elf_fill(int _fill); unsigned int elf_flagdata(Elf_Data *_data, Elf_Cmd _cmd, unsigned int _flags); unsigned int elf_flagehdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags); unsigned int elf_flagelf(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags); unsigned int elf_flagphdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags); unsigned int elf_flagscn(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags); unsigned int elf_flagshdr(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags); Elf_Arhdr *elf_getarhdr(Elf *_elf); Elf_Arsym *elf_getarsym(Elf *_elf, size_t *_ptr); off_t elf_getbase(Elf *_elf); Elf_Data *elf_getdata(Elf_Scn *, Elf_Data *); char *elf_getident(Elf *_elf, size_t *_ptr); int elf_getphdrnum(Elf *_elf, size_t *_dst); int elf_getphnum(Elf *_elf, size_t *_dst); /* Deprecated */ Elf_Scn *elf_getscn(Elf *_elf, size_t _index); int elf_getshdrnum(Elf *_elf, size_t *_dst); int elf_getshnum(Elf *_elf, size_t *_dst); /* Deprecated */ int elf_getshdrstrndx(Elf *_elf, size_t *_dst); int elf_getshstrndx(Elf *_elf, size_t *_dst); /* Deprecated */ unsigned long elf_hash(const char *_name); Elf_Kind elf_kind(Elf *_elf); Elf *elf_memory(char *_image, size_t _size); size_t elf_ndxscn(Elf_Scn *_scn); Elf_Data *elf_newdata(Elf_Scn *_scn); Elf_Scn *elf_newscn(Elf *_elf); Elf_Scn *elf_nextscn(Elf *_elf, Elf_Scn *_scn); Elf_Cmd elf_next(Elf *_elf); off_t elf_rand(Elf *_elf, off_t _off); Elf_Data *elf_rawdata(Elf_Scn *_scn, Elf_Data *_data); char *elf_rawfile(Elf *_elf, size_t *_size); int elf_setshstrndx(Elf *_elf, size_t _shnum); char *elf_strptr(Elf *_elf, size_t _section, size_t _offset); off_t elf_update(Elf *_elf, Elf_Cmd _cmd); unsigned int elf_version(unsigned int _version); long elf32_checksum(Elf *_elf); size_t elf32_fsize(Elf_Type _type, size_t _count, unsigned int _version); Elf32_Ehdr *elf32_getehdr(Elf *_elf); Elf32_Phdr *elf32_getphdr(Elf *_elf); Elf32_Shdr *elf32_getshdr(Elf_Scn *_scn); Elf32_Ehdr *elf32_newehdr(Elf *_elf); Elf32_Phdr *elf32_newphdr(Elf *_elf, size_t _count); Elf_Data *elf32_xlatetof(Elf_Data *_dst, const Elf_Data *_src, unsigned int _enc); Elf_Data *elf32_xlatetom(Elf_Data *_dst, const Elf_Data *_src, unsigned int _enc); long elf64_checksum(Elf *_elf); size_t elf64_fsize(Elf_Type _type, size_t _count, unsigned int _version); Elf64_Ehdr *elf64_getehdr(Elf *_elf); Elf64_Phdr *elf64_getphdr(Elf *_elf); Elf64_Shdr *elf64_getshdr(Elf_Scn *_scn); Elf64_Ehdr *elf64_newehdr(Elf *_elf); Elf64_Phdr *elf64_newphdr(Elf *_elf, size_t _count); Elf_Data *elf64_xlatetof(Elf_Data *_dst, const Elf_Data *_src, unsigned int _enc); Elf_Data *elf64_xlatetom(Elf_Data *_dst, const Elf_Data *_src, unsigned int _enc); #if defined(LIBELF_TEST_HOOKS) int _libelf_get_elf_class(Elf *_elf); int _libelf_get_max_error(void); const char *_libelf_get_no_error_message(void); const char *_libelf_get_unknown_error_message(void); void _libelf_set_elf_class(Elf *_elf, int _class); void _libelf_set_error(int _error); #endif /* LIBELF_TEST_HOOKS */ __END_DECLS #endif /* _LIBELF_H_ */