/*-
* 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.
*/
/*
* 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 {
/* Indexes into the e_ident array. Keep synced with
#
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_OSABI 7 /* Operating system / ABI identification */#
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 ELFMAG "\177ELF" /* magic string */#
define SELFMAG 4 /* magic string size */
/* Values for e_ident[EI_VERSION] and e_version. */
/* Values for e_ident[EI_CLASS]. */
/* Values for e_ident[EI_DATA]. */
#
define ELFDATA2LSB 1 /* 2's complement little-endian. */
/* Values for e_ident[EI_OSABI]. */
/* e_ident */
/* 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. */
/* Values for e_machine. */
#
define EM_NONE 0
/* Unknown machine. */#
define EM_M32 1 /* AT&T WE32100. */#
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_PPC 20 /* PowerPC 32-bit */#
define EM_PPC64 21 /* PowerPC 64-bit */#
define EM_IA_64 50 /* Intel IA-64 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_LOPROC 0xff00 /* First processor-specific. */#
define SHN_HIPROC 0xff1f /* Last processor-specific. */#
define SHN_ABS 0xfff1 /* Absolute values. */
/* sh_type */
#
define SHT_RELA 4 /* relocation section with addends */#
define SHT_HASH 5 /* symbol hash table section */#
define SHT_REL 9 /* relocation section - no addends */#
define SHT_SHLIB 10 /* reserved - purpose unknown */#
define SHT_DYNSYM 11 /* dynamic symbol table section */#
define SHT_NUM 12 /* number of section types */#
define SHT_LOOS 0x60000000 /* First of OS specific semantics */#
define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */#
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_TLS 0x400 /* Section contains TLS data. */#
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_TLS 7 /* Thread local storage segment */
#
define PT_COUNT 8 /* Number of defined p_type values. */
#
define PT_LOOS 0x60000000 /* OS-specific */#
define PT_HIOS 0x6fffffff /* OS-specific */#
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. [sup] */#
define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */#
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. [sup] */
#
define DT_JMPREL 23 /* Address of PLT relocations. */ initialization functions */
termination functions */
initialization functions. */
terminationfunctions. */
#
define DT_RUNPATH 29 /* String table offset of a null-terminated library search path string. */
#
define DT_FLAGS 30 /* Object specific flag values. */#
define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING and less than DT_LOOS follow the rules for
the interpretation of the d_un union
as follows: even == 'd_ptr', even == 'd_val'
or none */
pre-initialization functions. */
pre-initialization functions. */
#
define DT_COUNT 33 /* Number of defined d_tag values. */
#
define DT_LOOS 0x6000000d /* First OS-specific */#
define DT_HIOS 0x6fff0000 /* Last OS-specific */#
define DT_LOPROC 0x70000000 /* First processor-specific type. */#
define DT_HIPROC 0x7fffffff /* Last processor-specific type. */
/* Values for DT_FLAGS */
#
define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may make reference to the $ORIGIN substitution
string */
#
define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */#
define DF_TEXTREL 0x0004 /* Indicates there may be relocations in non-writable segments. */
#
define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should process all relocations for the object
containing this entry before transferring
control to the program. */
#
define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or executable contains code using a static
thread-local storage scheme. */
/* Values for n_type. Used in core files. */
#
define NT_PLATFORM 5 /* string from sysinfo(SI_PLATFORM) */#
define NT_ZONENAME 21 /* string from getzonenamebyid(3C) */#
define PN_XNUM 0xffff /* extended program header index */#
define NT_PRFPREG 2 /* Floating point registers. */#
define NT_AUXV 6 /* Process auxiliary vectors. */#endif
/* Symbol Binding - ELFNN_ST_BIND - st_info */
#
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_TLS 6 /* TLS object. */#
define STT_LOPROC 13 /* reserved range for processor */
/* Special symbol table indexes. */
#
define STN_UNDEF 0
/* Undefined symbol index. */
#endif