0,0 → 1,360 |
/* |
private.h - private definitions for libelf. |
Copyright (C) 1995 - 1998 Michael Riepe <michael@stud.uni-hannover.de> |
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This 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. |
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This 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 this library; if not, write to the Free Software |
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
*/ |
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/* @(#) $Id: private.h,v 1.10 1998/11/27 21:25:19 michael Exp $ */ |
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#ifndef _PRIVATE_H |
#define _PRIVATE_H |
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#define __LIBELF_INTERNAL__ 1 |
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#if HAVE_CONFIG_H |
# include <config.h> |
#endif /* HAVE_CONFIG_H */ |
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#include <sys/types.h> |
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#if STDC_HEADERS |
# include <stdlib.h> |
# include <string.h> |
#else /* STDC_HEADERS */ |
extern char *malloc(), *realloc(); |
extern void free(), bcopy(); |
extern int strcmp(), strncmp(), memcmp(); |
extern void *memcpy(), *memmove(), *memset(); |
#endif /* STDC_HEADERS */ |
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#if HAVE_UNISTD_H |
# include <unistd.h> |
#else /* HAVE_UNISTD_H */ |
extern int read(), write(); |
extern off_t lseek(); |
#endif /* HAVE_UNISTD_H */ |
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#if !HAVE_MEMCMP |
# define memcmp strncmp |
#endif /* !HAVE_MEMCMP */ |
#if !HAVE_MEMCPY |
# define memcpy(d,s,n) bcopy(s,d,n) |
#endif /* !HAVE_MEMCPY */ |
#if !HAVE_MEMMOVE |
# define memmove(d,s,n) bcopy(s,d,n) |
#endif /* !HAVE_MEMMOVE */ |
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#if !HAVE_MEMSET |
# define memset _elf_memset |
extern void *_elf_memset(); |
#endif /* !HAVE_MEMSET */ |
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#if HAVE_STRUCT_NLIST_DECLARATION |
# define nlist __override_nlist_declaration |
#endif /* HAVE_STRUCT_NLIST_DECLARATION */ |
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#if NEED_LINK_H |
# include <link.h> |
#endif /* NEED_LINK_H */ |
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#include <libelf.h> |
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#if HAVE_STRUCT_NLIST_DECLARATION |
# undef nlist |
#endif /* HAVE_STRUCT_NLIST_DECLARATION */ |
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typedef struct Scn_Data Scn_Data; |
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/* |
* ELF descriptor |
*/ |
struct Elf { |
/* common */ |
size_t e_size; /* file/member size */ |
size_t e_dsize; /* size of memory image */ |
Elf_Kind e_kind; /* kind of file */ |
char* e_data; /* file/member data */ |
char* e_rawdata; /* file/member raw data */ |
size_t e_idlen; /* identifier size */ |
int e_fd; /* file descriptor */ |
unsigned e_count; /* activation count */ |
/* archive members (still common) */ |
Elf* e_parent; /* NULL if not an archive member */ |
size_t e_next; /* 0 if not an archive member */ |
size_t e_base; /* 0 if not an archive member */ |
Elf* e_link; /* next archive member or NULL */ |
Elf_Arhdr* e_arhdr; /* archive member header or NULL */ |
/* archives */ |
size_t e_off; /* current member offset (for elf_begin) */ |
Elf* e_members; /* linked list of active archive members */ |
char* e_symtab; /* archive symbol table */ |
size_t e_symlen; /* length of archive symbol table */ |
char* e_strtab; /* archive string table */ |
size_t e_strlen; /* length of archive string table */ |
/* ELF files */ |
unsigned e_class; /* ELF class */ |
unsigned e_encoding; /* ELF data encoding */ |
unsigned e_version; /* ELF version */ |
char* e_ehdr; /* ELF header */ |
char* e_phdr; /* ELF program header table */ |
size_t e_phnum; /* size of program header table */ |
Elf_Scn* e_scn_1; /* first section */ |
Elf_Scn* e_scn_n; /* last section */ |
unsigned e_elf_flags; /* elf flags (ELF_F_*) */ |
unsigned e_ehdr_flags; /* ehdr flags (ELF_F_*) */ |
unsigned e_phdr_flags; /* phdr flags (ELF_F_*) */ |
/* misc flags */ |
unsigned e_readable : 1; /* file is readable */ |
unsigned e_writable : 1; /* file is writable */ |
unsigned e_disabled : 1; /* e_fd has been disabled */ |
unsigned e_cooked : 1; /* e_data was modified */ |
unsigned e_free_syms : 1; /* e_symtab is malloc'ed */ |
unsigned e_free_ehdr : 1; /* e_ehdr is malloc'ed */ |
unsigned e_free_phdr : 1; /* e_phdr is malloc'ed */ |
unsigned e_unmap_data : 1; /* e_data is mmap'ed */ |
unsigned e_memory : 1; /* created by elf_memory() */ |
/* magic number for debugging */ |
long e_magic; |
}; |
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#define ELF_MAGIC 0x012b649e |
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#define INIT_ELF {\ |
/* e_size */ 0,\ |
/* e_dsize */ 0,\ |
/* e_kind */ ELF_K_NONE,\ |
/* e_data */ NULL,\ |
/* e_rawdata */ NULL,\ |
/* e_idlen */ 0,\ |
/* e_fd */ -1,\ |
/* e_count */ 1,\ |
/* e_parent */ NULL,\ |
/* e_next */ 0,\ |
/* e_base */ 0,\ |
/* e_link */ NULL,\ |
/* e_arhdr */ NULL,\ |
/* e_off */ 0,\ |
/* e_members */ NULL,\ |
/* e_symtab */ NULL,\ |
/* e_symlen */ 0,\ |
/* e_strtab */ NULL,\ |
/* e_strlen */ 0,\ |
/* e_class */ ELFCLASSNONE,\ |
/* e_encoding */ ELFDATANONE,\ |
/* e_version */ EV_NONE,\ |
/* e_ehdr */ NULL,\ |
/* e_phdr */ NULL,\ |
/* e_phnum */ 0,\ |
/* e_scn_1 */ NULL,\ |
/* e_scn_n */ NULL,\ |
/* e_elf_flags */ 0,\ |
/* e_ehdr_flags */ 0,\ |
/* e_phdr_flags */ 0,\ |
/* e_readable */ 0,\ |
/* e_writable */ 0,\ |
/* e_disabled */ 0,\ |
/* e_cooked */ 0,\ |
/* e_free_syms */ 0,\ |
/* e_free_ehdr */ 0,\ |
/* e_free_phdr */ 0,\ |
/* e_unmap_data */ 0,\ |
/* e_memory */ 0,\ |
/* e_magic */ ELF_MAGIC\ |
} |
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/* |
* Section descriptor |
*/ |
struct Elf_Scn { |
Elf_Scn* s_link; /* pointer to next Elf_Scn */ |
Elf* s_elf; /* pointer to elf descriptor */ |
size_t s_index; /* number of this section */ |
unsigned s_scn_flags; /* section flags (ELF_F_*) */ |
unsigned s_shdr_flags; /* shdr flags (ELF_F_*) */ |
Scn_Data* s_data_1; /* first data buffer */ |
Scn_Data* s_data_n; /* last data buffer */ |
Scn_Data* s_rawdata; /* raw data buffer */ |
/* data copied from shdr */ |
unsigned s_type; /* section type */ |
size_t s_offset; /* section offset */ |
size_t s_size; /* section size */ |
/* misc flags */ |
unsigned s_freeme : 1; /* this Elf_Scn was malloc'ed */ |
/* section header */ |
union { |
#if __LIBELF64 |
Elf64_Shdr u_shdr64; |
#endif /* __LIBELF64 */ |
Elf32_Shdr u_shdr32; |
} s_uhdr; |
/* magic number for debugging */ |
long s_magic; |
}; |
#define s_shdr32 s_uhdr.u_shdr32 |
#define s_shdr64 s_uhdr.u_shdr64 |
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#define SCN_MAGIC 0x012c747d |
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#define INIT_SCN {\ |
/* s_link */ NULL,\ |
/* s_elf */ NULL,\ |
/* s_index */ 0,\ |
/* s_scn_flags */ 0,\ |
/* s_shdr_flags */ 0,\ |
/* s_data_1 */ NULL,\ |
/* s_data_n */ NULL,\ |
/* s_rawdata */ NULL,\ |
/* s_type */ SHT_NULL,\ |
/* s_offset */ 0,\ |
/* s_size */ 0,\ |
/* s_freeme */ 0,\ |
/* s_uhdr */ {{0,}},\ |
/* s_magic */ SCN_MAGIC\ |
} |
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/* |
* Data descriptor |
*/ |
struct Scn_Data { |
Elf_Data sd_data; /* must be first! */ |
Scn_Data* sd_link; /* pointer to next Scn_Data */ |
char* sd_memdata; /* memory image of section */ |
unsigned sd_data_flags; /* data flags (ELF_F_*) */ |
/* misc flags */ |
unsigned sd_freeme : 1; /* this Scn_Data was malloc'ed */ |
unsigned sd_free_data : 1; /* sd_memdata is malloc'ed */ |
/* magic number for debugging */ |
long sd_magic; |
}; |
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#define DATA_MAGIC 0x01072639 |
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#define INIT_DATA {\ |
{\ |
/* d_buf */ NULL,\ |
/* d_type */ ELF_T_BYTE,\ |
/* d_size */ 0,\ |
/* d_off */ 0,\ |
/* d_align */ 0,\ |
/* d_version */ EV_NONE\ |
},\ |
/* sd_link */ NULL,\ |
/* sd_memdata */ NULL,\ |
/* sd_data_flags */ 0,\ |
/* sd_freeme */ 0,\ |
/* sd_free_data */ 0,\ |
/* sd_magic */ DATA_MAGIC\ |
} |
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/* |
* Private status variables |
*/ |
extern unsigned _elf_version; |
extern int _elf_errno; |
extern int _elf_fill; |
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/* |
* Private functions |
*/ |
extern void *_elf_read __P((Elf*, void*, size_t, size_t)); |
extern void *_elf_mmap __P((Elf*)); |
extern int _elf_cook __P((Elf*)); |
extern char *_elf_getehdr __P((Elf*, unsigned)); |
extern Elf_Data *_elf_xlatetom(const Elf*, Elf_Data*, const Elf_Data*); |
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/* |
* Private data |
*/ |
extern const Elf_Scn _elf_scn_init; |
extern const Scn_Data _elf_data_init; |
extern const Elf_Type _elf_scn_types[SHT_NUM]; |
extern const size_t _elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2]; |
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/* |
* Access macros for _elf_fmsize[] |
*/ |
#define _fmsize(c,v,t,w) \ |
(_elf_fmsize[(c)-ELFCLASS32][(v)-EV_NONE-1][(t)-ELF_T_BYTE][(w)]) |
#define _fsize(c,v,t) _fmsize((c),(v),(t),1) |
#define _msize(c,v,t) _fmsize((c),(v),(t),0) |
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/* |
* Various checks |
*/ |
#define valid_class(c) ((c) >= ELFCLASS32 && (c) <= ELFCLASS64) |
#define valid_encoding(e) ((e) >= ELFDATA2LSB && (e) <= ELFDATA2MSB) |
#define valid_version(v) ((v) > EV_NONE && (v) <= EV_CURRENT) |
#define valid_type(t) ((t) >= ELF_T_BYTE && (t) < ELF_T_NUM) |
#define valid_scntype(s) ((s) >= SHT_NULL && (s) < SHT_NUM) |
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/* |
* Error codes |
*/ |
enum { |
#define __err__(a,b) a, |
#include <errors.h> /* include constants from errors.h */ |
#undef __err__ |
ERROR_NUM |
}; |
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#define seterr(err) (_elf_errno = (err)) |
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/* |
* Sizes of data types (external representation) |
* These definitions should be in <elf.h>, but... |
*/ |
#ifndef ELF32_FSZ_ADDR |
# define ELF32_FSZ_ADDR 4 |
# define ELF32_FSZ_HALF 2 |
# define ELF32_FSZ_OFF 4 |
# define ELF32_FSZ_SWORD 4 |
# define ELF32_FSZ_WORD 4 |
#endif /* ELF32_FSZ_ADDR */ |
#ifndef ELF64_FSZ_ADDR |
# define ELF64_FSZ_ADDR 8 |
# define ELF64_FSZ_HALF 2 |
# define ELF64_FSZ_OFF 8 |
# define ELF64_FSZ_SWORD 4 |
# define ELF64_FSZ_SXWORD 8 |
# define ELF64_FSZ_WORD 4 |
# define ELF64_FSZ_XWORD 8 |
#endif /* ELF64_FSZ_ADDR */ |
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/* |
* Alignment |
*/ |
#define _ELF32_ALIGN_PHDR 4 |
#define _ELF32_ALIGN_SHDR 4 |
#define _ELF64_ALIGN_PHDR 8 |
#define _ELF64_ALIGN_SHDR 8 |
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/* |
* Debugging |
*/ |
#if ENABLE_DEBUG |
# include <stdio.h> |
# if __STDC__ |
# define elf_assert(x) ((void)((x)||__elf_assert(__FILE__,__LINE__,#x))) |
# else /* __STDC__ */ |
# define elf_assert(x) ((void)((x)||__elf_assert(__FILE__,__LINE__,"x"))) |
# endif /* __STDC__ */ |
# define __elf_assert(f,l,x) (fprintf(stderr,\ |
"%s:%u: libelf assertion failure: %s\n",(f),(l),(x)),abort(),0) |
#else /* ENABLE_DEBUG */ |
# define elf_assert(x) ((void)0) |
#endif /* ENABLE_DEBUG */ |
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#endif /* _PRIVATE_H */ |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |