On Tue, 3 Feb 2004, Eric Pouech wrote:
>> elf.c: In function `DEBUG_ProcessElfFile':
>> elf.c:344: error: `DT_NUM' undeclared (first use in this function)
>> elf.c:344: error: (Each undeclared identifier is reported only once
>> elf.c:344: error: for each function it appears in.)
>> elf.c:344: error: `DT_PROCNUM' undeclared (first use in this function)
>> elf.c:344: error: `DT_EXTRANUM' undeclared (first use in this function)
>> elf.c:345: error: `DT_LOOS' undeclared (first use in this function)
>> elf.c:345: error: `DT_HIOS' undeclared (first use in this function)
>> elf.c:346: error: `DT_LOPROC' undeclared (first use in this function)
>> elf.c:346: error: `DT_HIPROC' undeclared (first use in this function)
> are those defined somewhere on BSD ?
According to recursive grep in /usr/include, at least FreeBSD 4.x does
not have these.
> browsing the web shows that openbsd & netbsd define (some of them) in
> sys/exec_elf.h (except DT_PROCNUM and DT_EXTRANUM)
> and freebsd has sys/elf32.h which includes some of them (and DT_COUNT
> instead of DT_NUM)
>
> do you (partially) confirm this ?
DT_COUNT is present also on FreeBSD 4.x, but the other I couldn't find
there.
(I'm attaching /usr/include/sys/elf32.h and /usr/include/sys/elf_common.h
from a 4.8-RELEASE-p13 system. If you'd like me to check a 5.2 system, I
should also be able to do that, but -STABLE is still 4.x.)
Gerald
--
Gerald Pfeifer (Jerry) [EMAIL PROTECTED] http://www.pfeifer.com/gerald/
/*-
* Copyright (c) 1996-1998 John D. Polstra.
* 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: src/sys/sys/elf32.h,v 1.7 1999/08/28 00:51:41 peter Exp $
*/
#ifndef _SYS_ELF32_H_
#define _SYS_ELF32_H_ 1
#include <sys/elf_common.h>
/*
* ELF definitions common to all 32-bit architectures.
*/
typedef u_int32_t Elf32_Addr;
typedef u_int16_t Elf32_Half;
typedef u_int32_t Elf32_Off;
typedef int32_t Elf32_Sword;
typedef u_int32_t Elf32_Word;
typedef u_int32_t Elf32_Size;
/*
* ELF header.
*/
typedef struct {
unsigned char e_ident[EI_NIDENT]; /* File identification. */
Elf32_Half e_type; /* File type. */
Elf32_Half e_machine; /* Machine architecture. */
Elf32_Word e_version; /* ELF format version. */
Elf32_Addr e_entry; /* Entry point. */
Elf32_Off e_phoff; /* Program header file offset. */
Elf32_Off e_shoff; /* Section header file offset. */
Elf32_Word e_flags; /* Architecture-specific flags. */
Elf32_Half e_ehsize; /* Size of ELF header in bytes. */
Elf32_Half e_phentsize; /* Size of program header entry. */
Elf32_Half e_phnum; /* Number of program header entries. */
Elf32_Half e_shentsize; /* Size of section header entry. */
Elf32_Half e_shnum; /* Number of section header entries. */
Elf32_Half e_shstrndx; /* Section name strings section. */
} Elf32_Ehdr;
/*
* Section header.
*/
typedef struct {
Elf32_Word sh_name; /* Section name (index into the
section header string table). */
Elf32_Word sh_type; /* Section type. */
Elf32_Word sh_flags; /* Section flags. */
Elf32_Addr sh_addr; /* Address in memory image. */
Elf32_Off sh_offset; /* Offset in file. */
Elf32_Size sh_size; /* Size in bytes. */
Elf32_Word sh_link; /* Index of a related section. */
Elf32_Word sh_info; /* Depends on section type. */
Elf32_Size sh_addralign; /* Alignment in bytes. */
Elf32_Size sh_entsize; /* Size of each entry in section. */
} Elf32_Shdr;
/*
* Program header.
*/
typedef struct {
Elf32_Word p_type; /* Entry type. */
Elf32_Off p_offset; /* File offset of contents. */
Elf32_Addr p_vaddr; /* Virtual address in memory image. */
Elf32_Addr p_paddr; /* Physical address (not used). */
Elf32_Size p_filesz; /* Size of contents in file. */
Elf32_Size p_memsz; /* Size of contents in memory. */
Elf32_Word p_flags; /* Access permission flags. */
Elf32_Size p_align; /* Alignment in memory and file. */
} Elf32_Phdr;
/*
* Dynamic structure. The ".dynamic" section contains an array of them.
*/
typedef struct {
Elf32_Sword d_tag; /* Entry type. */
union {
Elf32_Size d_val; /* Integer value. */
Elf32_Addr d_ptr; /* Address value. */
} d_un;
} Elf32_Dyn;
/*
* Relocation entries.
*/
/* Relocations that don't need an addend field. */
typedef struct {
Elf32_Addr r_offset; /* Location to be relocated. */
Elf32_Word r_info; /* Relocation type and symbol index. */
} Elf32_Rel;
/* Relocations that need an addend field. */
typedef struct {
Elf32_Addr r_offset; /* Location to be relocated. */
Elf32_Word r_info; /* Relocation type and symbol index. */
Elf32_Sword r_addend; /* Addend. */
} Elf32_Rela;
/* Macros for accessing the fields of r_info. */
#define ELF32_R_SYM(info) ((info) >> 8)
#define ELF32_R_TYPE(info) ((unsigned char)(info))
/* Macro for constructing r_info from field values. */
#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
/*
* Symbol table entries.
*/
typedef struct {
Elf32_Word st_name; /* String table index of name. */
Elf32_Addr st_value; /* Symbol value. */
Elf32_Size st_size; /* Size of associated object. */
unsigned char st_info; /* Type and binding information. */
unsigned char st_other; /* Reserved (not used). */
Elf32_Half st_shndx; /* Section index of symbol. */
} Elf32_Sym;
/* Macros for accessing the fields of st_info. */
#define ELF32_ST_BIND(info) ((info) >> 4)
#define ELF32_ST_TYPE(info) ((info) & 0xf)
/* Macro for constructing st_info from field values. */
#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
#endif /* !_SYS_ELF32_H_ */
/*-
* Copyright (c) 1998 John D. Polstra.
* 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: src/sys/sys/elf_common.h,v 1.5.2.3 2001/02/28 02:30:46 obrien Exp $
*/
#ifndef _SYS_ELF_COMMON_H_
#define _SYS_ELF_COMMON_H_ 1
/*
* ELF definitions that are independent of architecture or word size.
*/
/*
* Note header. The ".note" section contains an array of notes. Each
* begins with this header, aligned to a word boundary. Immediately
* following the note header is n_namesz bytes of name, padded to the
* next word boundary. Then comes n_descsz bytes of descriptor, again
* padded to a word boundary. The values of n_namesz and n_descsz do
* not include the padding.
*/
typedef struct {
u_int32_t n_namesz; /* Length of name. */
u_int32_t n_descsz; /* Length of descriptor. */
u_int32_t n_type; /* Type of this note. */
} Elf_Note;
/* Indexes into the e_ident array. Keep synced with
http://www.sco.com/developer/gabi/ch4.eheader.html */
#define EI_MAG0 0 /* Magic number, byte 0. */
#define EI_MAG1 1 /* Magic number, byte 1. */
#define EI_MAG2 2 /* Magic number, byte 2. */
#define EI_MAG3 3 /* Magic number, byte 3. */
#define EI_CLASS 4 /* Class of machine. */
#define EI_DATA 5 /* Data format. */
#define EI_VERSION 6 /* ELF format version. */
#define EI_OSABI 7 /* Operating system / ABI identification */
#define EI_ABIVERSION 8 /* ABI version */
#define OLD_EI_BRAND 8 /* Start of architecture identification. */
#define EI_PAD 9 /* Start of padding (per SVR4 ABI). */
#define EI_NIDENT 16 /* Size of e_ident array. */
/* Values for the magic number bytes. */
#define ELFMAG0 0x7f
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
/* Values for e_ident[EI_VERSION] and e_version. */
#define EV_NONE 0
#define EV_CURRENT 1
/* Values for e_ident[EI_CLASS]. */
#define ELFCLASSNONE 0 /* Unknown class. */
#define ELFCLASS32 1 /* 32-bit architecture. */
#define ELFCLASS64 2 /* 64-bit architecture. */
/* Values for e_ident[EI_DATA]. */
#define ELFDATANONE 0 /* Unknown data format. */
#define ELFDATA2LSB 1 /* 2's complement little-endian. */
#define ELFDATA2MSB 2 /* 2's complement big-endian. */
/* Values for e_ident[EI_OSABI]. */
#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
#define ELFOSABI_NONE ELFOSABI_SYSV /* symbol used in old spec */
#define ELFOSABI_HPUX 1 /* HP-UX operating system */
#define ELFOSABI_NETBSD 2 /* NetBSD */
#define ELFOSABI_LINUX 3 /* GNU/Linux */
#define ELFOSABI_HURD 4 /* GNU/Hurd */
#define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
#define ELFOSABI_SOLARIS 6 /* Solaris */
#define ELFOSABI_MONTEREY 7 /* Monterey */
#define ELFOSABI_IRIX 8 /* IRIX */
#define ELFOSABI_FREEBSD 9 /* FreeBSD */
#define ELFOSABI_TRU64 10 /* TRU64 UNIX */
#define ELFOSABI_MODESTO 11 /* Novell Modesto */
#define ELFOSABI_OPENBSD 12 /* OpenBSD */
#define ELFOSABI_ARM 97 /* ARM */
#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
/* e_ident */
#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
(ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
(ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
(ehdr).e_ident[EI_MAG3] == ELFMAG3)
/* Values for e_type. */
#define ET_NONE 0 /* Unknown type. */
#define ET_REL 1 /* Relocatable. */
#define ET_EXEC 2 /* Executable. */
#define ET_DYN 3 /* Shared object. */
#define ET_CORE 4 /* Core file. */
/* Values for e_machine. */
#define EM_NONE 0 /* Unknown machine. */
#define EM_M32 1 /* AT&T WE32100. */
#define EM_SPARC 2 /* Sun SPARC. */
#define EM_386 3 /* Intel i386. */
#define EM_68K 4 /* Motorola 68000. */
#define EM_88K 5 /* Motorola 88000. */
#define EM_486 6 /* Intel i486. */
#define EM_860 7 /* Intel i860. */
#define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
/* Extensions. This list is not complete. */
#define EM_S370 9 /* IBM System/370 */
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ /* Depreciated */
#define EM_PARISC 15 /* HPPA */
#define EM_SPARC32PLUS 18 /* SPARC v8plus */
#define EM_PPC 20 /* PowerPC 32-bit */
#define EM_PPC64 21 /* PowerPC 64-bit */
#define EM_ARM 40 /* ARM */
#define EM_SPARCV9 43 /* SPARC v9 64-bit */
#define EM_IA_64 50 /* Intel IA-46 Processor */
#define EM_X86_64 62 /* Advanced Micro Devices x86-64 */
#define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI */
/* Special section indexes. */
#define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */
#define SHN_LORESERVE 0xff00 /* First of reserved range. */
#define SHN_LOPROC 0xff00 /* First processor-specific. */
#define SHN_HIPROC 0xff1f /* Last processor-specific. */
#define SHN_ABS 0xfff1 /* Absolute values. */
#define SHN_COMMON 0xfff2 /* Common data. */
#define SHN_HIRESERVE 0xffff /* Last of reserved range. */
/* sh_type */
#define SHT_NULL 0 /* inactive */
#define SHT_PROGBITS 1 /* program defined information */
#define SHT_SYMTAB 2 /* symbol table section */
#define SHT_STRTAB 3 /* string table section */
#define SHT_RELA 4 /* relocation section with addends*/
#define SHT_HASH 5 /* symbol hash table section */
#define SHT_DYNAMIC 6 /* dynamic section */
#define SHT_NOTE 7 /* note section */
#define SHT_NOBITS 8 /* no space section */
#define SHT_REL 9 /* relation section without addends */
#define SHT_SHLIB 10 /* reserved - purpose unknown */
#define SHT_DYNSYM 11 /* dynamic symbol table section */
#define SHT_LOPROC 0x70000000 /* reserved range for processor */
#define SHT_HIPROC 0x7fffffff /* specific section header types */
#define SHT_LOUSER 0x80000000 /* reserved range for application */
#define SHT_HIUSER 0xffffffff /* specific indexes */
/* Flags for sh_flags. */
#define SHF_WRITE 0x1 /* Section contains writable data. */
#define SHF_ALLOC 0x2 /* Section occupies memory. */
#define SHF_EXECINSTR 0x4 /* Section contains instructions. */
#define SHF_MASKPROC 0xf0000000 /* Reserved for processor-specific. */
/* Values for p_type. */
#define PT_NULL 0 /* Unused entry. */
#define PT_LOAD 1 /* Loadable segment. */
#define PT_DYNAMIC 2 /* Dynamic linking information segment. */
#define PT_INTERP 3 /* Pathname of interpreter. */
#define PT_NOTE 4 /* Auxiliary information. */
#define PT_SHLIB 5 /* Reserved (not used). */
#define PT_PHDR 6 /* Location of program header itself. */
#define PT_COUNT 7 /* Number of defined p_type values. */
#define PT_LOPROC 0x70000000 /* First processor-specific type. */
#define PT_HIPROC 0x7fffffff /* Last processor-specific type. */
/* Values for p_flags. */
#define PF_X 0x1 /* Executable. */
#define PF_W 0x2 /* Writable. */
#define PF_R 0x4 /* Readable. */
/* Values for d_tag. */
#define DT_NULL 0 /* Terminating entry. */
#define DT_NEEDED 1 /* String table offset of a needed shared
library. */
#define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */
#define DT_PLTGOT 3 /* Processor-dependent address. */
#define DT_HASH 4 /* Address of symbol hash table. */
#define DT_STRTAB 5 /* Address of string table. */
#define DT_SYMTAB 6 /* Address of symbol table. */
#define DT_RELA 7 /* Address of ElfNN_Rela relocations. */
#define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */
#define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */
#define DT_STRSZ 10 /* Size of string table. */
#define DT_SYMENT 11 /* Size of each symbol table entry. */
#define DT_INIT 12 /* Address of initialization function. */
#define DT_FINI 13 /* Address of finalization function. */
#define DT_SONAME 14 /* String table offset of shared object
name. */
#define DT_RPATH 15 /* String table offset of library path. */
#define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. */
#define DT_REL 17 /* Address of ElfNN_Rel relocations. */
#define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */
#define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */
#define DT_PLTREL 20 /* Type of relocation used for PLT. */
#define DT_DEBUG 21 /* Reserved (not used). */
#define DT_TEXTREL 22 /* Indicates there may be relocations in
non-writable segments. */
#define DT_JMPREL 23 /* Address of PLT relocations. */
#define DT_COUNT 24 /* Number of defined d_tag values. */
/* Values for n_type. Used in core files. */
#define NT_PRSTATUS 1 /* Process status. */
#define NT_FPREGSET 2 /* Floating point registers. */
#define NT_PRPSINFO 3 /* Process state info. */
/* Symbol Binding - ELFNN_ST_BIND - st_info */
#define STB_LOCAL 0 /* Local symbol */
#define STB_GLOBAL 1 /* Global symbol */
#define STB_WEAK 2 /* like global - lower precedence */
#define STB_LOPROC 13 /* reserved range for processor */
#define STB_HIPROC 15 /* specific symbol bindings */
/* Symbol type - ELFNN_ST_TYPE - st_info */
#define STT_NOTYPE 0 /* Unspecified type. */
#define STT_OBJECT 1 /* Data object. */
#define STT_FUNC 2 /* Function. */
#define STT_SECTION 3 /* Section. */
#define STT_FILE 4 /* Source file. */
#define STT_LOPROC 13 /* reserved range for processor */
#define STT_HIPROC 15 /* specific symbol types */
/* Special symbol table indexes. */
#define STN_UNDEF 0 /* Undefined symbol index. */
#endif /* !_SYS_ELF_COMMON_H_ */
