2002-07-09 16:24:59 +04:00
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/*
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2006-03-26 19:58:43 +04:00
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* Copyright 2001, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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2012-05-04 22:33:23 +04:00
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*
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* Copyright 2002-2011, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT license.
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2006-03-26 19:58:43 +04:00
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*/
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2002-07-09 16:24:59 +04:00
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#ifndef _ELF32_H
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#define _ELF32_H
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2003-10-16 21:51:53 +04:00
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#include <SupportDefs.h>
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#include <ByteOrder.h>
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2008-05-14 07:55:16 +04:00
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#include <arch_elf.h>
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2002-07-09 16:24:59 +04:00
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2003-10-16 21:51:53 +04:00
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2002-07-09 16:24:59 +04:00
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typedef uint32 Elf32_Addr;
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typedef uint16 Elf32_Half;
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typedef uint32 Elf32_Off;
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typedef int32 Elf32_Sword;
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typedef uint32 Elf32_Word;
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2009-05-20 06:22:36 +04:00
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typedef Elf32_Half Elf32_Versym;
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2003-10-16 21:51:53 +04:00
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/*** ELF header ***/
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#define EI_NIDENT 16
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2002-07-09 16:24:59 +04:00
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struct Elf32_Ehdr {
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2003-10-16 21:51:53 +04:00
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uint8 e_ident[EI_NIDENT];
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Elf32_Half e_type;
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Elf32_Half e_machine;
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Elf32_Word e_version;
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Elf32_Addr e_entry;
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Elf32_Off e_phoff;
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Elf32_Off e_shoff;
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Elf32_Word e_flags;
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Elf32_Half e_ehsize;
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Elf32_Half e_phentsize;
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Elf32_Half e_phnum;
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Elf32_Half e_shentsize;
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Elf32_Half e_shnum;
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Elf32_Half e_shstrndx;
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#ifdef __cplusplus
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bool IsHostEndian() const;
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#endif
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};
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#define ELF_MAGIC "\x7f""ELF"
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// e_ident[] indices
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#define EI_MAG0 0
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#define EI_MAG1 1
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#define EI_MAG2 2
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#define EI_MAG3 3
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#define EI_CLASS 4
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#define EI_DATA 5
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#define EI_VERSION 6
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#define EI_PAD 7
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2012-05-04 22:33:23 +04:00
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// e_machine (Architecture)
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#define EM_NONE 0 // No machine
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#define EM_M32 1 // AT&T WE 32100
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#define EM_SPARC 2 // Sparc
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#define EM_386 3 // Intel 80386
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#define EM_68K 4 // Motorola m68k family
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#define EM_88K 5 // Motorola m88k family
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#define EM_486 6 // Intel 80486, Reserved for future use
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#define EM_860 7 // Intel 80860
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#define EM_MIPS 8 // MIPS R3000 (officially, big-endian only)
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#define EM_S370 9 // IBM System/370
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#define EM_MIPS_RS3_LE 10 // MIPS R3000 little-endian, Deprecated
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#define EM_PARISC 15 // HPPA
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#define EM_VPP550 17 // Fujitsu VPP500
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#define EM_SPARC32PLUS 18 // Sun "v8plus"
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#define EM_960 19 // Intel 80960
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#define EM_PPC 20 // PowerPC
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#define EM_PPC64 21 // 64-bit PowerPC
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#define EM_S390 22 // IBM S/390
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#define EM_V800 36 // NEC V800 series
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#define EM_FR20 37 // Fujitsu FR20
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#define EM_RH32 38 // TRW RH32
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#define EM_MCORE 39 // Motorola M*Core
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#define EM_RCE 39 // Old name for MCore
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#define EM_ARM 40 // ARM
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#define EM_OLD_ALPHA 41 // Digital Alpha
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#define EM_SH 42 // Renesas / SuperH SH
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#define EM_SPARCV9 43 // SPARC v9 64-bit
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#define EM_TRICORE 44 // Siemens Tricore embedded processor
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#define EM_ARC 45 // ARC Cores
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#define EM_H8_300 46 // Renesas H8/300
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#define EM_H8_300H 47 // Renesas H8/300H
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#define EM_H8S 48 // Renesas H8S
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#define EM_H8_500 49 // Renesas H8/500
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#define EM_IA_64 50 // Intel IA-64 Processor
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#define EM_MIPS_X 51 // Stanford MIPS-X
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#define EM_COLDFIRE 52 // Motorola Coldfire
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#define EM_68HC12 53 // Motorola M68HC12
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#define EM_MMA 54 // Fujitsu Multimedia Accelerator
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#define EM_PCP 55 // Siemens PCP
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#define EM_NCPU 56 // Sony nCPU embedded RISC processor
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#define EM_NDR1 57 // Denso NDR1 microprocesspr
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#define EM_STARCORE 58 // Motorola Star*Core processor
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#define EM_ME16 59 // Toyota ME16 processor
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#define EM_ST100 60 // STMicroelectronics ST100 processor
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#define EM_TINYJ 61 // Advanced Logic Corp. TinyJ embedded processor
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#define EM_X86_64 62 // Advanced Micro Devices X86-64 processor
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2003-10-16 21:51:53 +04:00
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// architecture class (EI_CLASS)
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#define ELFCLASS32 1
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#define ELFCLASS64 2
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// endian (EI_DATA)
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2009-05-20 06:22:36 +04:00
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#define ELFDATA2LSB 1 /* little endian */
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#define ELFDATA2MSB 2 /* big endian */
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2003-10-16 21:51:53 +04:00
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/*** section header ***/
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2002-07-09 16:24:59 +04:00
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struct Elf32_Shdr {
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2003-10-16 21:51:53 +04:00
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Elf32_Word sh_name;
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Elf32_Word sh_type;
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Elf32_Word sh_flags;
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Elf32_Addr sh_addr;
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Elf32_Off sh_offset;
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Elf32_Word sh_size;
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Elf32_Word sh_link;
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Elf32_Word sh_info;
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Elf32_Word sh_addralign;
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Elf32_Word sh_entsize;
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};
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// special section indices
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#define SHN_UNDEF 0
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#define SHN_LORESERVE 0xff00
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#define SHN_LOPROC 0xff00
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#define SHN_HIPROC 0xff1f
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#define SHN_ABS 0xfff1
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#define SHN_COMMON 0xfff2
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#define SHN_HIRESERVE 0xffff
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// section header type
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#define SHT_NULL 0
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#define SHT_PROGBITS 1
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#define SHT_SYMTAB 2
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#define SHT_STRTAB 3
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#define SHT_RELA 4
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#define SHT_HASH 5
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#define SHT_DYNAMIC 6
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#define SHT_NOTE 7
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#define SHT_NOBITS 8
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#define SHT_REL 9
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#define SHT_SHLIB 10
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#define SHT_DYNSYM 11
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2009-05-20 06:22:36 +04:00
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#define SHT_GNU_verdef 0x6ffffffd /* version definition section */
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#define SHT_GNU_verneed 0x6ffffffe /* version needs section */
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#define SHT_GNU_versym 0x6fffffff /* version symbol table */
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2003-10-16 21:51:53 +04:00
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#define SHT_LOPROC 0x70000000
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#define SHT_HIPROC 0x7fffffff
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#define SHT_LOUSER 0x80000000
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#define SHT_HIUSER 0xffffffff
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// section header flags
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#define SHF_WRITE 1
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#define SHF_ALLOC 2
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#define SHF_EXECINSTR 4
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#define SHF_MASKPROC 0xf0000000
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/*** program header ***/
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2002-07-09 16:24:59 +04:00
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struct Elf32_Phdr {
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2003-10-16 21:51:53 +04:00
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Elf32_Word p_type;
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Elf32_Off p_offset; /* offset from the beginning of the file of the segment */
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Elf32_Addr p_vaddr; /* virtual address for the segment in memory */
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Elf32_Addr p_paddr;
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Elf32_Word p_filesz; /* the size of the segment in the file */
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Elf32_Word p_memsz; /* the size of the segment in memory */
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Elf32_Word p_flags;
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Elf32_Word p_align;
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#ifdef __cplusplus
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bool IsReadWrite() const;
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bool IsExecutable() const;
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#endif
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};
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// program header segment types
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#define PT_NULL 0
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#define PT_LOAD 1
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#define PT_DYNAMIC 2
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#define PT_INTERP 3
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#define PT_NOTE 4
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#define PT_SHLIB 5
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#define PT_PHDR 6
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2009-04-10 07:27:27 +04:00
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#define PT_STACK 0x6474e551
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2002-07-09 16:24:59 +04:00
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2003-10-16 21:51:53 +04:00
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#define PT_LOPROC 0x70000000
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#define PT_HIPROC 0x7fffffff
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2002-07-09 16:24:59 +04:00
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2003-10-16 21:51:53 +04:00
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// program header segment flags
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#define PF_EXECUTE 0x1
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#define PF_WRITE 0x2
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#define PF_READ 0x4
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#define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ)
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#define PF_MASKPROC 0xf0000000
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2002-07-09 16:24:59 +04:00
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struct Elf32_Sym {
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2003-10-16 21:51:53 +04:00
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Elf32_Word st_name;
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Elf32_Addr st_value;
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Elf32_Word st_size;
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uint8 st_info;
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uint8 st_other;
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Elf32_Half st_shndx;
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#ifdef __cplusplus
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uint8 Bind() const;
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uint8 Type() const;
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#endif
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2002-07-09 16:24:59 +04:00
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};
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#define ELF32_ST_BIND(i) ((i) >> 4)
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#define ELF32_ST_TYPE(i) ((i) & 0xf)
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#define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf))
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#define STT_NOTYPE 0
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#define STT_OBJECT 1
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#define STT_FUNC 2
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#define STT_SECTION 3
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#define STT_FILE 4
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#define STT_LOPROC 13
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#define STT_HIPROC 15
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#define STB_LOCAL 0
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#define STB_GLOBAL 1
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#define STB_WEAK 2
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#define STB_LOPROC 13
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#define STB_HIPROC 15
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#define STN_UNDEF 0
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struct Elf32_Rel {
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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2003-10-16 21:51:53 +04:00
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#ifdef __cplusplus
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uint8 SymbolIndex() const;
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uint8 Type() const;
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#endif
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2002-07-09 16:24:59 +04:00
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};
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2003-10-16 21:51:53 +04:00
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#ifdef __cplusplus
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struct Elf32_Rela : public Elf32_Rel {
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#else
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2002-07-09 16:24:59 +04:00
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struct Elf32_Rela {
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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2003-10-16 21:51:53 +04:00
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#endif
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2002-07-09 16:24:59 +04:00
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Elf32_Sword r_addend;
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};
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#define ELF32_R_SYM(i) ((i) >> 8)
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#define ELF32_R_TYPE(i) ((unsigned char)(i))
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#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t))
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struct Elf32_Dyn {
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Elf32_Sword d_tag;
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union {
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Elf32_Word d_val;
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Elf32_Addr d_ptr;
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} d_un;
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};
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2010-11-22 16:06:36 +03:00
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#define DT_NULL 0
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#define DT_NEEDED 1
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#define DT_PLTRELSZ 2
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#define DT_PLTGOT 3
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#define DT_HASH 4
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#define DT_STRTAB 5
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#define DT_SYMTAB 6
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#define DT_RELA 7
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#define DT_RELASZ 8
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#define DT_RELAENT 9
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#define DT_STRSZ 10
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#define DT_SYMENT 11
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#define DT_INIT 12
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#define DT_FINI 13
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#define DT_SONAME 14
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#define DT_RPATH 15
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#define DT_SYMBOLIC 16
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#define DT_REL 17
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#define DT_RELSZ 18
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#define DT_RELENT 19
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#define DT_PLTREL 20
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#define DT_DEBUG 21
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#define DT_TEXTREL 22
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#define DT_JMPREL 23
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#define DT_BIND_NOW 24 /* no lazy binding */
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#define DT_INIT_ARRAY 25 /* init function array */
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#define DT_FINI_ARRAY 26 /* termination function array */
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#define DT_INIT_ARRAYSZ 27 /* init function array size */
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#define DT_FINI_ARRAYSZ 28 /* termination function array size */
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#define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */
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#define DT_FLAGS 30 /* flags (see below) */
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#define DT_ENCODING 32
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#define DT_PREINIT_ARRAY 32 /* preinitialization array */
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#define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */
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2002-07-09 16:24:59 +04:00
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2009-05-20 06:22:36 +04:00
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#define DT_VERSYM 0x6ffffff0 /* symbol version table */
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#define DT_VERDEF 0x6ffffffc /* version definition table */
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#define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */
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#define DT_VERNEED 0x6ffffffe /* table with needed versions */
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#define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */
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#define DT_LOPROC 0x70000000
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#define DT_HIPROC 0x7fffffff
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2010-11-22 16:06:36 +03:00
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/* DT_FLAGS values */
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#define DF_ORIGIN 0x01
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#define DF_SYMBOLIC 0x02
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#define DF_TEXTREL 0x04
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#define DF_BIND_NOW 0x08
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#define DF_STATIC_TLS 0x10
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2009-05-20 06:22:36 +04:00
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/* version definition section */
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struct Elf32_Verdef {
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Elf32_Half vd_version; /* version revision */
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Elf32_Half vd_flags; /* version information flags */
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Elf32_Half vd_ndx; /* version index as specified in the
|
|
|
|
symbol version table */
|
|
|
|
Elf32_Half vd_cnt; /* number of associated verdaux entries */
|
|
|
|
Elf32_Word vd_hash; /* version name hash value */
|
|
|
|
Elf32_Word vd_aux; /* byte offset to verdaux array */
|
|
|
|
Elf32_Word vd_next; /* byte offset to next verdef entry */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* values for vd_version (version revision) */
|
|
|
|
#define VER_DEF_NONE 0 /* no version */
|
|
|
|
#define VER_DEF_CURRENT 1 /* current version */
|
|
|
|
#define VER_DEF_NUM 2 /* given version number */
|
|
|
|
|
|
|
|
/* values for vd_flags (version information flags) */
|
|
|
|
#define VER_FLG_BASE 0x1 /* version definition of file itself */
|
|
|
|
#define VER_FLG_WEAK 0x2 /* weak version identifier */
|
|
|
|
|
|
|
|
/* values for versym symbol index */
|
|
|
|
#define VER_NDX_LOCAL 0 /* symbol is local */
|
|
|
|
#define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */
|
|
|
|
#define VER_NDX_INITIAL 2 /* initial version -- that's the one given
|
|
|
|
to symbols when a library becomes
|
|
|
|
versioned; handled by the linker (and
|
|
|
|
runtime loader) similar to
|
|
|
|
VER_NDX_GLOBAL */
|
|
|
|
#define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */
|
|
|
|
#define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */
|
|
|
|
|
|
|
|
#define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */
|
|
|
|
#define VER_NDX_MASK 0x7fff /* mask to get the actual version index */
|
|
|
|
#define VER_NDX(x) ((x) & VER_NDX_MASK)
|
|
|
|
|
|
|
|
|
|
|
|
/* auxiliary version information */
|
|
|
|
|
|
|
|
struct Elf32_Verdaux {
|
|
|
|
Elf32_Word vda_name; /* string table offset to version or dependency
|
|
|
|
name */
|
|
|
|
Elf32_Word vda_next; /* byte offset to next verdaux entry */
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* version dependency section */
|
|
|
|
|
|
|
|
struct Elf32_Verneed {
|
|
|
|
Elf32_Half vn_version; /* version of structure */
|
|
|
|
Elf32_Half vn_cnt; /* number of associated vernaux entries */
|
|
|
|
Elf32_Word vn_file; /* byte offset to file name for this
|
|
|
|
dependency */
|
|
|
|
Elf32_Word vn_aux; /* byte offset to vernaux array */
|
|
|
|
Elf32_Word vn_next; /* byte offset to next verneed entry */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* values for vn_version (version revision) */
|
|
|
|
#define VER_NEED_NONE 0 /* no version */
|
|
|
|
#define VER_NEED_CURRENT 1 /* current version */
|
|
|
|
#define VER_NEED_NUM 2 /* given version number */
|
|
|
|
|
|
|
|
|
|
|
|
/* auxiliary needed version information */
|
|
|
|
|
|
|
|
struct Elf32_Vernaux {
|
|
|
|
Elf32_Word vna_hash; /* dependency name hash value */
|
|
|
|
Elf32_Half vna_flags; /* dependency specific information flags */
|
|
|
|
Elf32_Half vna_other; /* version index as specified in the symbol
|
|
|
|
version table */
|
|
|
|
Elf32_Word vna_name; /* string table offset to dependency name */
|
|
|
|
Elf32_Word vna_next; /* byte offset to next vernaux entry */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* values for vna_flags */
|
|
|
|
#define VER_FLG_WEAK 0x2 /* weak version identifier */
|
2003-10-16 21:51:53 +04:00
|
|
|
|
|
|
|
|
|
|
|
/*** inline functions ***/
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline bool
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Ehdr::IsHostEndian() const
|
|
|
|
{
|
|
|
|
#if B_HOST_IS_LENDIAN
|
|
|
|
return e_ident[EI_DATA] == ELFDATA2LSB;
|
|
|
|
#elif B_HOST_IS_BENDIAN
|
|
|
|
return e_ident[EI_DATA] == ELFDATA2MSB;
|
2002-07-09 16:24:59 +04:00
|
|
|
#endif
|
2003-10-16 21:51:53 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline bool
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Phdr::IsReadWrite() const
|
|
|
|
{
|
2005-12-29 04:19:45 +03:00
|
|
|
return !(~p_flags & (PF_READ | PF_WRITE));
|
2003-10-16 21:51:53 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
inline bool
|
|
|
|
Elf32_Phdr::IsExecutable() const
|
|
|
|
{
|
2010-07-07 01:47:08 +04:00
|
|
|
return (p_flags & PF_EXECUTE) != 0;
|
2003-10-16 21:51:53 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline uint8
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Sym::Bind() const
|
|
|
|
{
|
|
|
|
return ELF32_ST_BIND(st_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline uint8
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Sym::Type() const
|
|
|
|
{
|
|
|
|
return ELF32_ST_TYPE(st_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline uint8
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Rel::SymbolIndex() const
|
|
|
|
{
|
|
|
|
return ELF32_R_SYM(r_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 06:22:36 +04:00
|
|
|
inline uint8
|
2003-10-16 21:51:53 +04:00
|
|
|
Elf32_Rel::Type() const
|
|
|
|
{
|
|
|
|
return ELF32_R_TYPE(r_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
|
|
#endif /* _ELF32_H_ */
|