a6b98ccbbe
* Add support for R_ARM_THM_MOVW_ABS_NC/THM_MOVT_ABS These are sometimes emitted by the Rust LLVM compiler. Ref: https://github.com/ARM-software/abi-aa/blob/main/aaelf32/aaelf32.rst#56relocation * Discard LLVM bitcode from extension applications LLVM-based compilers may include uncompressed bitcode in object files to help with link-time optimization. However this can bloat binary sizes from KB to MB. * Expose alligned_malloc/free functions to applications This is required to implement a global allocator in Rust.
1151 lines
44 KiB
C
1151 lines
44 KiB
C
#ifndef _ELF_H
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#define _ELF_H 1
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/* Standard ELF types. */
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#include <stdint.h>
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/* Type for a 16-bit quantity. */
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typedef uint16_t Elf32_Half;
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typedef uint16_t Elf64_Half;
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/* Types for signed and unsigned 32-bit quantities. */
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typedef uint32_t Elf32_Word;
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typedef int32_t Elf32_Sword;
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typedef uint32_t Elf64_Word;
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typedef int32_t Elf64_Sword;
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/* Types for signed and unsigned 64-bit quantities. */
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typedef uint64_t Elf32_Xword;
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typedef int64_t Elf32_Sxword;
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typedef uint64_t Elf64_Xword;
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typedef int64_t Elf64_Sxword;
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/* Type of addresses. */
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typedef uint32_t Elf32_Addr;
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typedef uint64_t Elf64_Addr;
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/* Type of file offsets. */
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typedef uint32_t Elf32_Off;
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typedef uint64_t Elf64_Off;
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/* Type for section indices, which are 16-bit quantities. */
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typedef uint16_t Elf32_Section;
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typedef uint16_t Elf64_Section;
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/* Type for version symbol information. */
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typedef Elf32_Half Elf32_Versym;
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typedef Elf64_Half Elf64_Versym;
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/* The ELF file header. This appears at the start of every ELF file. */
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#define EI_NIDENT (16)
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typedef struct {
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unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
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Elf32_Half e_type; /* Object file type */
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Elf32_Half e_machine; /* Architecture */
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Elf32_Word e_version; /* Object file version */
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Elf32_Addr e_entry; /* Entry point virtual address */
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Elf32_Off e_phoff; /* Program header table file offset */
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Elf32_Off e_shoff; /* Section header table file offset */
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Elf32_Word e_flags; /* Processor-specific flags */
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Elf32_Half e_ehsize; /* ELF header size in bytes */
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Elf32_Half e_phentsize; /* Program header table entry size */
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Elf32_Half e_phnum; /* Program header table entry count */
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Elf32_Half e_shentsize; /* Section header table entry size */
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Elf32_Half e_shnum; /* Section header table entry count */
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Elf32_Half e_shstrndx; /* Section header string table index */
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} Elf32_Ehdr;
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typedef struct {
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unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
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Elf64_Half e_type; /* Object file type */
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Elf64_Half e_machine; /* Architecture */
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Elf64_Word e_version; /* Object file version */
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Elf64_Addr e_entry; /* Entry point virtual address */
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Elf64_Off e_phoff; /* Program header table file offset */
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Elf64_Off e_shoff; /* Section header table file offset */
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Elf64_Word e_flags; /* Processor-specific flags */
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Elf64_Half e_ehsize; /* ELF header size in bytes */
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Elf64_Half e_phentsize; /* Program header table entry size */
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Elf64_Half e_phnum; /* Program header table entry count */
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Elf64_Half e_shentsize; /* Section header table entry size */
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Elf64_Half e_shnum; /* Section header table entry count */
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Elf64_Half e_shstrndx; /* Section header string table index */
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} Elf64_Ehdr;
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/* Fields in the e_ident array. The EI_* macros are indices into the
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array. The macros under each EI_* macro are the values the byte
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may have. */
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#define EI_MAG0 0 /* File identification byte 0 index */
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#define ELFMAG0 0x7f /* Magic number byte 0 */
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#define EI_MAG1 1 /* File identification byte 1 index */
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#define ELFMAG1 'E' /* Magic number byte 1 */
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#define EI_MAG2 2 /* File identification byte 2 index */
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#define ELFMAG2 'L' /* Magic number byte 2 */
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#define EI_MAG3 3 /* File identification byte 3 index */
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#define ELFMAG3 'F' /* Magic number byte 3 */
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/* Conglomeration of the identification bytes, for easy testing as a word. */
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define EI_CLASS 4 /* File class byte index */
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#define ELFCLASSNONE 0 /* Invalid class */
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#define ELFCLASS32 1 /* 32-bit objects */
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#define ELFCLASS64 2 /* 64-bit objects */
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#define ELFCLASSNUM 3
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#define EI_DATA 5 /* Data encoding byte index */
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#define ELFDATANONE 0 /* Invalid data encoding */
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#define ELFDATA2LSB 1 /* 2's complement, little endian */
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#define ELFDATA2MSB 2 /* 2's complement, big endian */
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#define ELFDATANUM 3
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#define EI_VERSION 6 /* File version byte index */
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/* Value must be EV_CURRENT */
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#define EI_OSABI 7 /* OS ABI identification */
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#define ELFOSABI_NONE 0 /* UNIX System V ABI */
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#define ELFOSABI_SYSV 0 /* Alias. */
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#define ELFOSABI_HPUX 1 /* HP-UX */
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#define ELFOSABI_NETBSD 2 /* NetBSD. */
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#define ELFOSABI_LINUX 3 /* Linux. */
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#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */
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#define ELFOSABI_AIX 7 /* IBM AIX. */
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#define ELFOSABI_IRIX 8 /* SGI Irix. */
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#define ELFOSABI_FREEBSD 9 /* FreeBSD. */
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#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */
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#define ELFOSABI_MODESTO 11 /* Novell Modesto. */
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#define ELFOSABI_OPENBSD 12 /* OpenBSD. */
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#define ELFOSABI_ARM 97 /* ARM */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
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#define EI_ABIVERSION 8 /* ABI version */
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#define EI_PAD 9 /* Byte index of padding bytes */
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/* Legal values for e_type (object file type). */
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#define ET_NONE 0 /* No file type */
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#define ET_REL 1 /* Relocatable file */
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#define ET_EXEC 2 /* Executable file */
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#define ET_DYN 3 /* Shared object file */
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#define ET_CORE 4 /* Core file */
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#define ET_NUM 5 /* Number of defined types */
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#define ET_LOOS 0xfe00 /* OS-specific range start */
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#define ET_HIOS 0xfeff /* OS-specific range end */
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#define ET_LOPROC 0xff00 /* Processor-specific range start */
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#define ET_HIPROC 0xffff /* Processor-specific range end */
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/* Legal values for 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 /* SUN 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_860 7 /* Intel 80860 */
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#define EM_MIPS 8 /* MIPS R3000 big-endian */
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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 */
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#define EM_PARISC 15 /* HPPA */
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#define EM_VPP500 17 /* Fujitsu VPP500 */
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#define EM_SPARC32PLUS 18 /* Sun's "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 /* PowerPC 64-bit */
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#define EM_S390 22 /* IBM S390 */
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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 RH-32 */
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#define EM_RCE 39 /* Motorola RCE */
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#define EM_ARM 40 /* ARM */
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#define EM_FAKE_ALPHA 41 /* Digital Alpha */
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#define EM_SH 42 /* Hitachi SH */
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#define EM_SPARCV9 43 /* SPARC v9 64-bit */
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#define EM_TRICORE 44 /* Siemens Tricore */
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#define EM_ARC 45 /* Argonaut RISC Core */
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#define EM_H8_300 46 /* Hitachi H8/300 */
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#define EM_H8_300H 47 /* Hitachi H8/300H */
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#define EM_H8S 48 /* Hitachi H8S */
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#define EM_H8_500 49 /* Hitachi H8/500 */
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#define EM_IA_64 50 /* Intel Merced */
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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 MMA Multimedia Accelerator*/
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#define EM_PCP 55 /* Siemens PCP */
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#define EM_NCPU 56 /* Sony nCPU embeeded RISC */
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#define EM_NDR1 57 /* Denso NDR1 microprocessor */
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#define EM_STARCORE 58 /* Motorola Start*Core processor */
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#define EM_ME16 59 /* Toyota ME16 processor */
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#define EM_ST100 60 /* STMicroelectronic ST100 processor */
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#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
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#define EM_X86_64 62 /* AMD x86-64 architecture */
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#define EM_PDSP 63 /* Sony DSP Processor */
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#define EM_FX66 66 /* Siemens FX66 microcontroller */
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#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
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#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
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#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
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#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
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#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
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#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
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#define EM_SVX 73 /* Silicon Graphics SVx */
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#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
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#define EM_VAX 75 /* Digital VAX */
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#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
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#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */
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#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
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#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
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#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */
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#define EM_HUANY 81 /* Harvard University machine-independent object files */
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#define EM_PRISM 82 /* SiTera Prism */
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#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
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#define EM_FR30 84 /* Fujitsu FR30 */
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#define EM_D10V 85 /* Mitsubishi D10V */
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#define EM_D30V 86 /* Mitsubishi D30V */
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#define EM_V850 87 /* NEC v850 */
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#define EM_M32R 88 /* Mitsubishi M32R */
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#define EM_MN10300 89 /* Matsushita MN10300 */
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#define EM_MN10200 90 /* Matsushita MN10200 */
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#define EM_PJ 91 /* picoJava */
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#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
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#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
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#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
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#define EM_NUM 95
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/* Legal values for e_version (version). */
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#define EV_NONE 0 /* Invalid ELF version */
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#define EV_CURRENT 1 /* Current version */
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#define EV_NUM 2
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/* Section header. */
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typedef struct {
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Elf32_Word sh_name; /* Section name (string tbl index) */
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Elf32_Word sh_type; /* Section type */
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Elf32_Word sh_flags; /* Section flags */
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Elf32_Addr sh_addr; /* Section virtual addr at execution */
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Elf32_Off sh_offset; /* Section file offset */
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Elf32_Word sh_size; /* Section size in bytes */
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Elf32_Word sh_link; /* Link to another section */
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Elf32_Word sh_info; /* Additional section information */
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Elf32_Word sh_addralign; /* Section alignment */
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Elf32_Word sh_entsize; /* Entry size if section holds table */
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} Elf32_Shdr;
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typedef struct {
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Elf64_Word sh_name; /* Section name (string tbl index) */
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Elf64_Word sh_type; /* Section type */
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Elf64_Xword sh_flags; /* Section flags */
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Elf64_Addr sh_addr; /* Section virtual addr at execution */
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Elf64_Off sh_offset; /* Section file offset */
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Elf64_Xword sh_size; /* Section size in bytes */
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Elf64_Word sh_link; /* Link to another section */
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Elf64_Word sh_info; /* Additional section information */
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Elf64_Xword sh_addralign; /* Section alignment */
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Elf64_Xword sh_entsize; /* Entry size if section holds table */
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} Elf64_Shdr;
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/* Special section indices. */
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#define SHN_UNDEF 0 /* Undefined section */
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#define SHN_LORESERVE 0xff00 /* Start of reserved indices */
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#define SHN_LOPROC 0xff00 /* Start of processor-specific */
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#define SHN_BEFORE \
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0xff00 /* Order section before all others
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(Solaris). */
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#define SHN_AFTER \
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0xff01 /* Order section after all others
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(Solaris). */
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#define SHN_HIPROC 0xff1f /* End of processor-specific */
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#define SHN_LOOS 0xff20 /* Start of OS-specific */
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#define SHN_HIOS 0xff3f /* End of OS-specific */
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#define SHN_ABS 0xfff1 /* Associated symbol is absolute */
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#define SHN_COMMON 0xfff2 /* Associated symbol is common */
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#define SHN_XINDEX 0xffff /* Index is in extra table. */
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#define SHN_HIRESERVE 0xffff /* End of reserved indices */
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/* Legal values for sh_type (section type). */
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#define SHT_NULL 0 /* Section header table entry unused */
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#define SHT_PROGBITS 1 /* Program data */
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#define SHT_SYMTAB 2 /* Symbol table */
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#define SHT_STRTAB 3 /* String table */
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#define SHT_RELA 4 /* Relocation entries with addends */
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#define SHT_HASH 5 /* Symbol hash table */
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#define SHT_DYNAMIC 6 /* Dynamic linking information */
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#define SHT_NOTE 7 /* Notes */
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#define SHT_NOBITS 8 /* Program space with no data (bss) */
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#define SHT_REL 9 /* Relocation entries, no addends */
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#define SHT_SHLIB 10 /* Reserved */
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#define SHT_DYNSYM 11 /* Dynamic linker symbol table */
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#define SHT_INIT_ARRAY 14 /* Array of constructors */
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#define SHT_FINI_ARRAY 15 /* Array of destructors */
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#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
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#define SHT_GROUP 17 /* Section group */
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#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
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#define SHT_NUM 19 /* Number of defined types. */
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#define SHT_LOOS 0x60000000 /* Start OS-specific. */
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#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */
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#define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */
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#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */
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#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */
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#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */
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#define SHT_SUNW_move 0x6ffffffa
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#define SHT_SUNW_COMDAT 0x6ffffffb
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#define SHT_SUNW_syminfo 0x6ffffffc
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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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#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */
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#define SHT_HIOS 0x6fffffff /* End OS-specific type */
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#define SHT_LOPROC 0x70000000 /* Start of processor-specific */
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#define SHT_HIPROC 0x7fffffff /* End of processor-specific */
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#define SHT_LOUSER 0x80000000 /* Start of application-specific */
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#define SHT_HIUSER 0x8fffffff /* End of application-specific */
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/* Legal values for sh_flags (section flags). */
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#define SHF_WRITE (1 << 0) /* Writable */
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#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
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#define SHF_EXECINSTR (1 << 2) /* Executable */
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#define SHF_MERGE (1 << 4) /* Might be merged */
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#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */
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#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */
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#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */
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#define SHF_OS_NONCONFORMING \
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(1 << 8) /* Non-standard OS specific handling
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required */
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#define SHF_GROUP (1 << 9) /* Section is member of a group. */
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#define SHF_TLS (1 << 10) /* Section hold thread-local data. */
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#define SHF_MASKOS 0x0ff00000 /* OS-specific. */
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#define SHF_MASKPROC 0xf0000000 /* Processor-specific */
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#define SHF_ORDERED \
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(1 << 30) /* Special ordering requirement
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(Solaris). */
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#define SHF_EXCLUDE \
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(1 << 31) /* Section is excluded unless
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referenced or allocated (Solaris).*/
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/* Section group handling. */
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#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */
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/* Symbol table entry. */
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typedef struct {
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Elf32_Word st_name; /* Symbol name (string tbl index) */
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Elf32_Addr st_value; /* Symbol value */
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Elf32_Word st_size; /* Symbol size */
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unsigned char st_info; /* Symbol type and binding */
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unsigned char st_other; /* Symbol visibility */
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Elf32_Section st_shndx; /* Section index */
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} Elf32_Sym;
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typedef struct {
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Elf64_Word st_name; /* Symbol name (string tbl index) */
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unsigned char st_info; /* Symbol type and binding */
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unsigned char st_other; /* Symbol visibility */
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Elf64_Section st_shndx; /* Section index */
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Elf64_Addr st_value; /* Symbol value */
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Elf64_Xword st_size; /* Symbol size */
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} Elf64_Sym;
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/* The syminfo section if available contains additional information about
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every dynamic symbol. */
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typedef struct {
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Elf32_Half si_boundto; /* Direct bindings, symbol bound to */
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Elf32_Half si_flags; /* Per symbol flags */
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} Elf32_Syminfo;
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typedef struct {
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Elf64_Half si_boundto; /* Direct bindings, symbol bound to */
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Elf64_Half si_flags; /* Per symbol flags */
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} Elf64_Syminfo;
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/* Possible values for si_boundto. */
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#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */
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#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */
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#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */
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/* Possible bitmasks for si_flags. */
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#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */
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#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */
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#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */
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#define SYMINFO_FLG_LAZYLOAD \
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0x0008 /* Symbol bound to object to be lazy
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loaded */
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/* Syminfo version values. */
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#define SYMINFO_NONE 0
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#define SYMINFO_CURRENT 1
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#define SYMINFO_NUM 2
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/* How to extract and insert information held in the st_info field. */
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#define ELF32_ST_BIND(val) (((unsigned char)(val)) >> 4)
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#define ELF32_ST_TYPE(val) ((val)&0xf)
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#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type)&0xf))
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/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */
|
|
#define ELF64_ST_BIND(val) ELF32_ST_BIND(val)
|
|
#define ELF64_ST_TYPE(val) ELF32_ST_TYPE(val)
|
|
#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO((bind), (type))
|
|
|
|
/* Legal values for ST_BIND subfield of st_info (symbol binding). */
|
|
|
|
#define STB_LOCAL 0 /* Local symbol */
|
|
#define STB_GLOBAL 1 /* Global symbol */
|
|
#define STB_WEAK 2 /* Weak symbol */
|
|
#define STB_NUM 3 /* Number of defined types. */
|
|
#define STB_LOOS 10 /* Start of OS-specific */
|
|
#define STB_GNU_UNIQUE 10 /* Unique symbol. */
|
|
#define STB_HIOS 12 /* End of OS-specific */
|
|
#define STB_LOPROC 13 /* Start of processor-specific */
|
|
#define STB_HIPROC 15 /* End of processor-specific */
|
|
|
|
/* Legal values for ST_TYPE subfield of st_info (symbol type). */
|
|
|
|
#define STT_NOTYPE 0 /* Symbol type is unspecified */
|
|
#define STT_OBJECT 1 /* Symbol is a data object */
|
|
#define STT_FUNC 2 /* Symbol is a code object */
|
|
#define STT_SECTION 3 /* Symbol associated with a section */
|
|
#define STT_FILE 4 /* Symbol's name is file name */
|
|
#define STT_COMMON 5 /* Symbol is a common data object */
|
|
#define STT_TLS 6 /* Symbol is thread-local data object*/
|
|
#define STT_NUM 7 /* Number of defined types. */
|
|
#define STT_LOOS 10 /* Start of OS-specific */
|
|
#define STT_GNU_IFUNC 10 /* Symbol is indirect code object */
|
|
#define STT_HIOS 12 /* End of OS-specific */
|
|
#define STT_LOPROC 13 /* Start of processor-specific */
|
|
#define STT_HIPROC 15 /* End of processor-specific */
|
|
|
|
/* Symbol table indices are found in the hash buckets and chain table
|
|
of a symbol hash table section. This special index value indicates
|
|
the end of a chain, meaning no further symbols are found in that bucket. */
|
|
|
|
#define STN_UNDEF 0 /* End of a chain. */
|
|
|
|
/* How to extract and insert information held in the st_other field. */
|
|
|
|
#define ELF32_ST_VISIBILITY(o) ((o)&0x03)
|
|
|
|
/* For ELF64 the definitions are the same. */
|
|
#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY(o)
|
|
|
|
/* Symbol visibility specification encoded in the st_other field. */
|
|
#define STV_DEFAULT 0 /* Default symbol visibility rules */
|
|
#define STV_INTERNAL 1 /* Processor specific hidden class */
|
|
#define STV_HIDDEN 2 /* Sym unavailable in other modules */
|
|
#define STV_PROTECTED 3 /* Not preemptible, not exported */
|
|
|
|
/* Relocation table entry without addend (in section of type SHT_REL). */
|
|
|
|
typedef struct {
|
|
Elf32_Addr r_offset; /* Address */
|
|
Elf32_Word r_info; /* Relocation type and symbol index */
|
|
} Elf32_Rel;
|
|
|
|
/* I have seen two different definitions of the Elf64_Rel and
|
|
Elf64_Rela structures, so we'll leave them out until Novell (or
|
|
whoever) gets their act together. */
|
|
/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */
|
|
|
|
typedef struct {
|
|
Elf64_Addr r_offset; /* Address */
|
|
Elf64_Xword r_info; /* Relocation type and symbol index */
|
|
} Elf64_Rel;
|
|
|
|
/* Relocation table entry with addend (in section of type SHT_RELA). */
|
|
|
|
typedef struct {
|
|
Elf32_Addr r_offset; /* Address */
|
|
Elf32_Word r_info; /* Relocation type and symbol index */
|
|
Elf32_Sword r_addend; /* Addend */
|
|
} Elf32_Rela;
|
|
|
|
typedef struct {
|
|
Elf64_Addr r_offset; /* Address */
|
|
Elf64_Xword r_info; /* Relocation type and symbol index */
|
|
Elf64_Sxword r_addend; /* Addend */
|
|
} Elf64_Rela;
|
|
|
|
/* How to extract and insert information held in the r_info field. */
|
|
|
|
#define ELF32_R_SYM(val) ((val) >> 8)
|
|
#define ELF32_R_TYPE(val) ((val)&0xff)
|
|
#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type)&0xff))
|
|
|
|
#define ELF64_R_SYM(i) ((i) >> 32)
|
|
#define ELF64_R_TYPE(i) ((i)&0xffffffff)
|
|
#define ELF64_R_INFO(sym, type) ((((Elf64_Xword)(sym)) << 32) + (type))
|
|
|
|
/* Program segment header. */
|
|
|
|
typedef struct {
|
|
Elf32_Word p_type; /* Segment type */
|
|
Elf32_Off p_offset; /* Segment file offset */
|
|
Elf32_Addr p_vaddr; /* Segment virtual address */
|
|
Elf32_Addr p_paddr; /* Segment physical address */
|
|
Elf32_Word p_filesz; /* Segment size in file */
|
|
Elf32_Word p_memsz; /* Segment size in memory */
|
|
Elf32_Word p_flags; /* Segment flags */
|
|
Elf32_Word p_align; /* Segment alignment */
|
|
} Elf32_Phdr;
|
|
|
|
typedef struct {
|
|
Elf64_Word p_type; /* Segment type */
|
|
Elf64_Word p_flags; /* Segment flags */
|
|
Elf64_Off p_offset; /* Segment file offset */
|
|
Elf64_Addr p_vaddr; /* Segment virtual address */
|
|
Elf64_Addr p_paddr; /* Segment physical address */
|
|
Elf64_Xword p_filesz; /* Segment size in file */
|
|
Elf64_Xword p_memsz; /* Segment size in memory */
|
|
Elf64_Xword p_align; /* Segment alignment */
|
|
} Elf64_Phdr;
|
|
|
|
/* Legal values for p_type (segment type). */
|
|
|
|
#define PT_NULL 0 /* Program header table entry unused */
|
|
#define PT_LOAD 1 /* Loadable program segment */
|
|
#define PT_DYNAMIC 2 /* Dynamic linking information */
|
|
#define PT_INTERP 3 /* Program interpreter */
|
|
#define PT_NOTE 4 /* Auxiliary information */
|
|
#define PT_SHLIB 5 /* Reserved */
|
|
#define PT_PHDR 6 /* Entry for header table itself */
|
|
#define PT_TLS 7 /* Thread-local storage segment */
|
|
#define PT_NUM 8 /* Number of defined types */
|
|
#define PT_LOOS 0x60000000 /* Start of OS-specific */
|
|
#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */
|
|
#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */
|
|
#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */
|
|
#define PT_LOSUNW 0x6ffffffa
|
|
#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */
|
|
#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */
|
|
#define PT_HISUNW 0x6fffffff
|
|
#define PT_HIOS 0x6fffffff /* End of OS-specific */
|
|
#define PT_LOPROC 0x70000000 /* Start of processor-specific */
|
|
#define PT_HIPROC 0x7fffffff /* End of processor-specific */
|
|
|
|
/* Legal values for p_flags (segment flags). */
|
|
|
|
#define PF_X (1 << 0) /* Segment is executable */
|
|
#define PF_W (1 << 1) /* Segment is writable */
|
|
#define PF_R (1 << 2) /* Segment is readable */
|
|
#define PF_MASKOS 0x0ff00000 /* OS-specific */
|
|
#define PF_MASKPROC 0xf0000000 /* Processor-specific */
|
|
|
|
/* Legal values for note segment descriptor types for core files. */
|
|
|
|
#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
|
|
#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
|
|
#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
|
|
#define NT_PRXREG 4 /* Contains copy of prxregset struct */
|
|
#define NT_TASKSTRUCT 4 /* Contains copy of task structure */
|
|
#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */
|
|
#define NT_AUXV 6 /* Contains copy of auxv array */
|
|
#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */
|
|
#define NT_ASRS 8 /* Contains copy of asrset struct */
|
|
#define NT_PSTATUS 10 /* Contains copy of pstatus struct */
|
|
#define NT_PSINFO 13 /* Contains copy of psinfo struct */
|
|
#define NT_PRCRED 14 /* Contains copy of prcred struct */
|
|
#define NT_UTSNAME 15 /* Contains copy of utsname struct */
|
|
#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */
|
|
#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */
|
|
#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */
|
|
#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */
|
|
#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
|
|
#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
|
|
#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
|
|
#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
|
|
#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
|
|
|
|
/* Legal values for the note segment descriptor types for object files. */
|
|
|
|
#define NT_VERSION 1 /* Contains a version string. */
|
|
|
|
/* Dynamic section entry. */
|
|
|
|
typedef struct {
|
|
Elf32_Sword d_tag; /* Dynamic entry type */
|
|
union {
|
|
Elf32_Word d_val; /* Integer value */
|
|
Elf32_Addr d_ptr; /* Address value */
|
|
} d_un;
|
|
} Elf32_Dyn;
|
|
|
|
typedef struct {
|
|
Elf64_Sxword d_tag; /* Dynamic entry type */
|
|
union {
|
|
Elf64_Xword d_val; /* Integer value */
|
|
Elf64_Addr d_ptr; /* Address value */
|
|
} d_un;
|
|
} Elf64_Dyn;
|
|
|
|
/* Legal values for d_tag (dynamic entry type). */
|
|
|
|
#define DT_NULL 0 /* Marks end of dynamic section */
|
|
#define DT_NEEDED 1 /* Name of needed library */
|
|
#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */
|
|
#define DT_PLTGOT 3 /* Processor defined value */
|
|
#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 Rela relocs */
|
|
#define DT_RELASZ 8 /* Total size of Rela relocs */
|
|
#define DT_RELAENT 9 /* Size of one Rela reloc */
|
|
#define DT_STRSZ 10 /* Size of string table */
|
|
#define DT_SYMENT 11 /* Size of one symbol table entry */
|
|
#define DT_INIT 12 /* Address of init function */
|
|
#define DT_FINI 13 /* Address of termination function */
|
|
#define DT_SONAME 14 /* Name of shared object */
|
|
#define DT_RPATH 15 /* Library search path (deprecated) */
|
|
#define DT_SYMBOLIC 16 /* Start symbol search here */
|
|
#define DT_REL 17 /* Address of Rel relocs */
|
|
#define DT_RELSZ 18 /* Total size of Rel relocs */
|
|
#define DT_RELENT 19 /* Size of one Rel reloc */
|
|
#define DT_PLTREL 20 /* Type of reloc in PLT */
|
|
#define DT_DEBUG 21 /* For debugging; unspecified */
|
|
#define DT_TEXTREL 22 /* Reloc might modify .text */
|
|
#define DT_JMPREL 23 /* Address of PLT relocs */
|
|
#define DT_BIND_NOW 24 /* Process relocations of object */
|
|
#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */
|
|
#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */
|
|
#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */
|
|
#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */
|
|
#define DT_RUNPATH 29 /* Library search path */
|
|
#define DT_FLAGS 30 /* Flags for the object being loaded */
|
|
#define DT_ENCODING 32 /* Start of encoded range */
|
|
#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
|
|
#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
|
|
#define DT_NUM 34 /* Number used */
|
|
#define DT_LOOS 0x6000000d /* Start of OS-specific */
|
|
#define DT_HIOS 0x6ffff000 /* End of OS-specific */
|
|
#define DT_LOPROC 0x70000000 /* Start of processor-specific */
|
|
#define DT_HIPROC 0x7fffffff /* End of processor-specific */
|
|
#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */
|
|
|
|
/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the
|
|
Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's
|
|
approach. */
|
|
#define DT_VALRNGLO 0x6ffffd00
|
|
#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */
|
|
#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */
|
|
#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */
|
|
#define DT_CHECKSUM 0x6ffffdf8
|
|
#define DT_PLTPADSZ 0x6ffffdf9
|
|
#define DT_MOVEENT 0x6ffffdfa
|
|
#define DT_MOVESZ 0x6ffffdfb
|
|
#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */
|
|
#define DT_POSFLAG_1 \
|
|
0x6ffffdfd /* Flags for DT_* entries, effecting
|
|
the following DT_* entry. */
|
|
#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */
|
|
#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */
|
|
#define DT_VALRNGHI 0x6ffffdff
|
|
#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */
|
|
#define DT_VALNUM 12
|
|
|
|
/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the
|
|
Dyn.d_un.d_ptr field of the Elf*_Dyn structure.
|
|
|
|
If any adjustment is made to the ELF object after it has been
|
|
built these entries will need to be adjusted. */
|
|
#define DT_ADDRRNGLO 0x6ffffe00
|
|
#define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table. */
|
|
#define DT_TLSDESC_PLT 0x6ffffef6
|
|
#define DT_TLSDESC_GOT 0x6ffffef7
|
|
#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */
|
|
#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */
|
|
#define DT_CONFIG 0x6ffffefa /* Configuration information. */
|
|
#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */
|
|
#define DT_AUDIT 0x6ffffefc /* Object auditing. */
|
|
#define DT_PLTPAD 0x6ffffefd /* PLT padding. */
|
|
#define DT_MOVETAB 0x6ffffefe /* Move table. */
|
|
#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */
|
|
#define DT_ADDRRNGHI 0x6ffffeff
|
|
#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */
|
|
#define DT_ADDRNUM 11
|
|
|
|
/* The versioning entry types. The next are defined as part of the
|
|
GNU extension. */
|
|
#define DT_VERSYM 0x6ffffff0
|
|
|
|
#define DT_RELACOUNT 0x6ffffff9
|
|
#define DT_RELCOUNT 0x6ffffffa
|
|
|
|
/* These were chosen by Sun. */
|
|
#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */
|
|
#define DT_VERDEF \
|
|
0x6ffffffc /* Address of version definition
|
|
table */
|
|
#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */
|
|
#define DT_VERNEED \
|
|
0x6ffffffe /* Address of table with needed
|
|
versions */
|
|
#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */
|
|
#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
|
|
#define DT_VERSIONTAGNUM 16
|
|
|
|
/* Sun added these machine-independent extensions in the "processor-specific"
|
|
range. Be compatible. */
|
|
#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */
|
|
#define DT_FILTER 0x7fffffff /* Shared object to get values from */
|
|
#define DT_EXTRATAGIDX(tag) ((Elf32_Word) - ((Elf32_Sword)(tag) << 1 >> 1) - 1)
|
|
#define DT_EXTRANUM 3
|
|
|
|
/* Values of `d_un.d_val' in the DT_FLAGS entry. */
|
|
#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */
|
|
#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */
|
|
#define DF_TEXTREL 0x00000004 /* Object contains text relocations */
|
|
#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */
|
|
#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */
|
|
|
|
/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
|
|
entry in the dynamic section. */
|
|
#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */
|
|
#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */
|
|
#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */
|
|
#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/
|
|
#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/
|
|
#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/
|
|
#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */
|
|
#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */
|
|
#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */
|
|
#define DF_1_TRANS 0x00000200
|
|
#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */
|
|
#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */
|
|
#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */
|
|
#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/
|
|
#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */
|
|
#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */
|
|
#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */
|
|
|
|
/* Flags for the feature selection in DT_FEATURE_1. */
|
|
#define DTF_1_PARINIT 0x00000001
|
|
#define DTF_1_CONFEXP 0x00000002
|
|
|
|
/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */
|
|
#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */
|
|
#define DF_P1_GROUPPERM \
|
|
0x00000002 /* Symbols from next object are not
|
|
generally available. */
|
|
|
|
/* Version definition sections. */
|
|
|
|
typedef struct {
|
|
Elf32_Half vd_version; /* Version revision */
|
|
Elf32_Half vd_flags; /* Version information */
|
|
Elf32_Half vd_ndx; /* Version Index */
|
|
Elf32_Half vd_cnt; /* Number of associated aux entries */
|
|
Elf32_Word vd_hash; /* Version name hash value */
|
|
Elf32_Word vd_aux; /* Offset in bytes to verdaux array */
|
|
Elf32_Word vd_next; /* Offset in bytes to next verdef
|
|
entry */
|
|
} Elf32_Verdef;
|
|
|
|
typedef struct {
|
|
Elf64_Half vd_version; /* Version revision */
|
|
Elf64_Half vd_flags; /* Version information */
|
|
Elf64_Half vd_ndx; /* Version Index */
|
|
Elf64_Half vd_cnt; /* Number of associated aux entries */
|
|
Elf64_Word vd_hash; /* Version name hash value */
|
|
Elf64_Word vd_aux; /* Offset in bytes to verdaux array */
|
|
Elf64_Word vd_next; /* Offset in bytes to next verdef
|
|
entry */
|
|
} Elf64_Verdef;
|
|
|
|
/* Legal 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 */
|
|
|
|
/* Legal 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 */
|
|
|
|
/* Versym symbol index values. */
|
|
#define VER_NDX_LOCAL 0 /* Symbol is local. */
|
|
#define VER_NDX_GLOBAL 1 /* Symbol is global. */
|
|
#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */
|
|
#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */
|
|
|
|
/* Auxialiary version information. */
|
|
|
|
typedef struct {
|
|
Elf32_Word vda_name; /* Version or dependency names */
|
|
Elf32_Word vda_next; /* Offset in bytes to next verdaux
|
|
entry */
|
|
} Elf32_Verdaux;
|
|
|
|
typedef struct {
|
|
Elf64_Word vda_name; /* Version or dependency names */
|
|
Elf64_Word vda_next; /* Offset in bytes to next verdaux
|
|
entry */
|
|
} Elf64_Verdaux;
|
|
|
|
/* Version dependency section. */
|
|
|
|
typedef struct {
|
|
Elf32_Half vn_version; /* Version of structure */
|
|
Elf32_Half vn_cnt; /* Number of associated aux entries */
|
|
Elf32_Word vn_file; /* Offset of filename for this
|
|
dependency */
|
|
Elf32_Word vn_aux; /* Offset in bytes to vernaux array */
|
|
Elf32_Word vn_next; /* Offset in bytes to next verneed
|
|
entry */
|
|
} Elf32_Verneed;
|
|
|
|
typedef struct {
|
|
Elf64_Half vn_version; /* Version of structure */
|
|
Elf64_Half vn_cnt; /* Number of associated aux entries */
|
|
Elf64_Word vn_file; /* Offset of filename for this
|
|
dependency */
|
|
Elf64_Word vn_aux; /* Offset in bytes to vernaux array */
|
|
Elf64_Word vn_next; /* Offset in bytes to next verneed
|
|
entry */
|
|
} Elf64_Verneed;
|
|
|
|
/* Legal 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. */
|
|
|
|
typedef struct {
|
|
Elf32_Word vna_hash; /* Hash value of dependency name */
|
|
Elf32_Half vna_flags; /* Dependency specific information */
|
|
Elf32_Half vna_other; /* Unused */
|
|
Elf32_Word vna_name; /* Dependency name string offset */
|
|
Elf32_Word vna_next; /* Offset in bytes to next vernaux
|
|
entry */
|
|
} Elf32_Vernaux;
|
|
|
|
typedef struct {
|
|
Elf64_Word vna_hash; /* Hash value of dependency name */
|
|
Elf64_Half vna_flags; /* Dependency specific information */
|
|
Elf64_Half vna_other; /* Unused */
|
|
Elf64_Word vna_name; /* Dependency name string offset */
|
|
Elf64_Word vna_next; /* Offset in bytes to next vernaux
|
|
entry */
|
|
} Elf64_Vernaux;
|
|
|
|
/* Legal values for vna_flags. */
|
|
#define VER_FLG_WEAK 0x2 /* Weak version identifier */
|
|
|
|
/* Auxiliary vector. */
|
|
|
|
/* This vector is normally only used by the program interpreter. The
|
|
usual definition in an ABI supplement uses the name auxv_t. The
|
|
vector is not usually defined in a standard <elf.h> file, but it
|
|
can't hurt. We rename it to avoid conflicts. The sizes of these
|
|
types are an arrangement between the exec server and the program
|
|
interpreter, so we don't fully specify them here. */
|
|
|
|
typedef struct {
|
|
uint32_t a_type; /* Entry type */
|
|
union {
|
|
uint32_t a_val; /* Integer value */
|
|
/* We use to have pointer elements added here. We cannot do that,
|
|
though, since it does not work when using 32-bit definitions
|
|
on 64-bit platforms and vice versa. */
|
|
} a_un;
|
|
} Elf32_auxv_t;
|
|
|
|
typedef struct {
|
|
uint64_t a_type; /* Entry type */
|
|
union {
|
|
uint64_t a_val; /* Integer value */
|
|
/* We use to have pointer elements added here. We cannot do that,
|
|
though, since it does not work when using 32-bit definitions
|
|
on 64-bit platforms and vice versa. */
|
|
} a_un;
|
|
} Elf64_auxv_t;
|
|
|
|
/* Legal values for a_type (entry type). */
|
|
|
|
#define AT_NULL 0 /* End of vector */
|
|
#define AT_IGNORE 1 /* Entry should be ignored */
|
|
#define AT_EXECFD 2 /* File descriptor of program */
|
|
#define AT_PHDR 3 /* Program headers for program */
|
|
#define AT_PHENT 4 /* Size of program header entry */
|
|
#define AT_PHNUM 5 /* Number of program headers */
|
|
#define AT_PAGESZ 6 /* System page size */
|
|
#define AT_BASE 7 /* Base address of interpreter */
|
|
#define AT_FLAGS 8 /* Flags */
|
|
#define AT_ENTRY 9 /* Entry point of program */
|
|
#define AT_NOTELF 10 /* Program is not ELF */
|
|
#define AT_UID 11 /* Real uid */
|
|
#define AT_EUID 12 /* Effective uid */
|
|
#define AT_GID 13 /* Real gid */
|
|
#define AT_EGID 14 /* Effective gid */
|
|
#define AT_CLKTCK 17 /* Frequency of times() */
|
|
|
|
/* Some more special a_type values describing the hardware. */
|
|
#define AT_PLATFORM 15 /* String identifying platform. */
|
|
#define AT_HWCAP \
|
|
16 /* Machine dependent hints about
|
|
processor capabilities. */
|
|
|
|
/* This entry gives some information about the FPU initialization
|
|
performed by the kernel. */
|
|
#define AT_FPUCW 18 /* Used FPU control word. */
|
|
|
|
/* Cache block sizes. */
|
|
#define AT_DCACHEBSIZE 19 /* Data cache block size. */
|
|
#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */
|
|
#define AT_UCACHEBSIZE 21 /* Unified cache block size. */
|
|
|
|
/* A special ignored value for PPC, used by the kernel to control the
|
|
interpretation of the AUXV. Must be > 16. */
|
|
#define AT_IGNOREPPC 22 /* Entry should be ignored. */
|
|
|
|
#define AT_SECURE 23 /* Boolean, was exec setuid-like? */
|
|
|
|
#define AT_BASE_PLATFORM 24 /* String identifying real platforms.*/
|
|
|
|
#define AT_RANDOM 25 /* Address of 16 random bytes. */
|
|
|
|
#define AT_EXECFN 31 /* Filename of executable. */
|
|
|
|
/* Pointer to the global system page used for system calls and other
|
|
nice things. */
|
|
#define AT_SYSINFO 32
|
|
#define AT_SYSINFO_EHDR 33
|
|
|
|
/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains
|
|
log2 of line size; mask those to get cache size. */
|
|
#define AT_L1I_CACHESHAPE 34
|
|
#define AT_L1D_CACHESHAPE 35
|
|
#define AT_L2_CACHESHAPE 36
|
|
#define AT_L3_CACHESHAPE 37
|
|
|
|
/* Note section contents. Each entry in the note section begins with
|
|
a header of a fixed form. */
|
|
|
|
typedef struct {
|
|
Elf32_Word n_namesz; /* Length of the note's name. */
|
|
Elf32_Word n_descsz; /* Length of the note's descriptor. */
|
|
Elf32_Word n_type; /* Type of the note. */
|
|
} Elf32_Nhdr;
|
|
|
|
typedef struct {
|
|
Elf64_Word n_namesz; /* Length of the note's name. */
|
|
Elf64_Word n_descsz; /* Length of the note's descriptor. */
|
|
Elf64_Word n_type; /* Type of the note. */
|
|
} Elf64_Nhdr;
|
|
|
|
/* Known names of notes. */
|
|
|
|
/* Solaris entries in the note section have this name. */
|
|
#define ELF_NOTE_SOLARIS "SUNW Solaris"
|
|
|
|
/* Note entries for GNU systems have this name. */
|
|
#define ELF_NOTE_GNU "GNU"
|
|
|
|
/* Defined types of notes for Solaris. */
|
|
|
|
/* Value of descriptor (one word) is desired pagesize for the binary. */
|
|
#define ELF_NOTE_PAGESIZE_HINT 1
|
|
|
|
/* Defined note types for GNU systems. */
|
|
|
|
/* ABI information. The descriptor consists of words:
|
|
word 0: OS descriptor
|
|
word 1: major version of the ABI
|
|
word 2: minor version of the ABI
|
|
word 3: subminor version of the ABI
|
|
*/
|
|
#define NT_GNU_ABI_TAG 1
|
|
#define ELF_NOTE_ABI NT_GNU_ABI_TAG /* Old name. */
|
|
|
|
/* Known OSes. These values can appear in word 0 of an
|
|
NT_GNU_ABI_TAG note section entry. */
|
|
#define ELF_NOTE_OS_LINUX 0
|
|
#define ELF_NOTE_OS_GNU 1
|
|
#define ELF_NOTE_OS_SOLARIS2 2
|
|
#define ELF_NOTE_OS_FREEBSD 3
|
|
|
|
/* Synthetic hwcap information. The descriptor begins with two words:
|
|
word 0: number of entries
|
|
word 1: bitmask of enabled entries
|
|
Then follow variable-length entries, one byte followed by a
|
|
'\0'-terminated hwcap name string. The byte gives the bit
|
|
number to test if enabled, (1U << bit) & bitmask. */
|
|
#define NT_GNU_HWCAP 2
|
|
|
|
/* Build ID bits as generated by ld --build-id.
|
|
The descriptor consists of any nonzero number of bytes. */
|
|
#define NT_GNU_BUILD_ID 3
|
|
|
|
/* Version note generated by GNU gold containing a version string. */
|
|
#define NT_GNU_GOLD_VERSION 4
|
|
|
|
/* Move records. */
|
|
typedef struct {
|
|
Elf32_Xword m_value; /* Symbol value. */
|
|
Elf32_Word m_info; /* Size and index. */
|
|
Elf32_Word m_poffset; /* Symbol offset. */
|
|
Elf32_Half m_repeat; /* Repeat count. */
|
|
Elf32_Half m_stride; /* Stride info. */
|
|
} Elf32_Move;
|
|
|
|
typedef struct {
|
|
Elf64_Xword m_value; /* Symbol value. */
|
|
Elf64_Xword m_info; /* Size and index. */
|
|
Elf64_Xword m_poffset; /* Symbol offset. */
|
|
Elf64_Half m_repeat; /* Repeat count. */
|
|
Elf64_Half m_stride; /* Stride info. */
|
|
} Elf64_Move;
|
|
|
|
/* Macro to construct move records. */
|
|
#define ELF32_M_SYM(info) ((info) >> 8)
|
|
#define ELF32_M_SIZE(info) ((unsigned char)(info))
|
|
#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size))
|
|
|
|
#define ELF64_M_SYM(info) ELF32_M_SYM(info)
|
|
#define ELF64_M_SIZE(info) ELF32_M_SIZE(info)
|
|
#define ELF64_M_INFO(sym, size) ELF32_M_INFO(sym, size)
|
|
|
|
/* ARM specific declarations */
|
|
|
|
/* Processor specific flags for the ELF header e_flags field. */
|
|
#define EF_ARM_RELEXEC 0x01
|
|
#define EF_ARM_HASENTRY 0x02
|
|
#define EF_ARM_INTERWORK 0x04
|
|
#define EF_ARM_APCS_26 0x08
|
|
#define EF_ARM_APCS_FLOAT 0x10
|
|
#define EF_ARM_PIC 0x20
|
|
#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */
|
|
#define EF_ARM_NEW_ABI 0x80
|
|
#define EF_ARM_OLD_ABI 0x100
|
|
#define EF_ARM_SOFT_FLOAT 0x200
|
|
#define EF_ARM_VFP_FLOAT 0x400
|
|
#define EF_ARM_MAVERICK_FLOAT 0x800
|
|
|
|
/* Other constants defined in the ARM ELF spec. version B-01. */
|
|
/* NB. These conflict with values defined above. */
|
|
#define EF_ARM_SYMSARESORTED 0x04
|
|
#define EF_ARM_DYNSYMSUSESEGIDX 0x08
|
|
#define EF_ARM_MAPSYMSFIRST 0x10
|
|
#define EF_ARM_EABIMASK 0XFF000000
|
|
|
|
/* Constants defined in AAELF. */
|
|
#define EF_ARM_BE8 0x00800000
|
|
#define EF_ARM_LE8 0x00400000
|
|
|
|
#define EF_ARM_EABI_VERSION(flags) ((flags)&EF_ARM_EABIMASK)
|
|
#define EF_ARM_EABI_UNKNOWN 0x00000000
|
|
#define EF_ARM_EABI_VER1 0x01000000
|
|
#define EF_ARM_EABI_VER2 0x02000000
|
|
#define EF_ARM_EABI_VER3 0x03000000
|
|
#define EF_ARM_EABI_VER4 0x04000000
|
|
#define EF_ARM_EABI_VER5 0x05000000
|
|
|
|
/* Additional symbol types for Thumb. */
|
|
#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
|
|
#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
|
|
|
|
/* ARM-specific values for sh_flags */
|
|
#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
|
|
#define SHF_ARM_COMDEF \
|
|
0x80000000 /* Section may be multiply defined
|
|
in the input to a link step. */
|
|
|
|
/* ARM-specific program header flags */
|
|
#define PF_ARM_SB \
|
|
0x10000000 /* Segment contains the location
|
|
addressed by the static base. */
|
|
#define PF_ARM_PI 0x20000000 /* Position-independent segment. */
|
|
#define PF_ARM_ABS 0x40000000 /* Absolute segment. */
|
|
|
|
/* Processor specific values for the Phdr p_type field. */
|
|
#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */
|
|
|
|
/* Processor specific values for the Shdr sh_type field. */
|
|
#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */
|
|
#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */
|
|
#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */
|
|
|
|
/* ARM relocs. */
|
|
|
|
#define R_ARM_NONE 0 /* No reloc */
|
|
#define R_ARM_PC24 1 /* PC relative 26 bit branch */
|
|
#define R_ARM_ABS32 2 /* Direct 32 bit */
|
|
#define R_ARM_REL32 3 /* PC relative 32 bit */
|
|
#define R_ARM_PC13 4
|
|
#define R_ARM_ABS16 5 /* Direct 16 bit */
|
|
#define R_ARM_ABS12 6 /* Direct 12 bit */
|
|
#define R_ARM_THM_ABS5 7
|
|
#define R_ARM_ABS8 8 /* Direct 8 bit */
|
|
#define R_ARM_SBREL32 9
|
|
#define R_ARM_THM_PC22 10
|
|
#define R_ARM_THM_PC8 11
|
|
#define R_ARM_AMP_VCALL9 12
|
|
#define R_ARM_SWI24 13
|
|
#define R_ARM_THM_SWI8 14
|
|
#define R_ARM_XPC25 15
|
|
#define R_ARM_THM_XPC22 16
|
|
#define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */
|
|
#define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */
|
|
#define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */
|
|
#define R_ARM_COPY 20 /* Copy symbol at runtime */
|
|
#define R_ARM_GLOB_DAT 21 /* Create GOT entry */
|
|
#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */
|
|
#define R_ARM_RELATIVE 23 /* Adjust by program base */
|
|
#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
|
|
#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
|
|
#define R_ARM_GOT32 26 /* 32 bit GOT entry */
|
|
#define R_ARM_PLT32 27 /* 32 bit PLT address */
|
|
#define R_ARM_THM_JUMP24 30 /* Thumb32 ((S + A) | T) - P */
|
|
#define R_ARM_ALU_PCREL_7_0 32
|
|
#define R_ARM_ALU_PCREL_15_8 33
|
|
#define R_ARM_ALU_PCREL_23_15 34
|
|
#define R_ARM_LDR_SBREL_11_0 35
|
|
#define R_ARM_ALU_SBREL_19_12 36
|
|
#define R_ARM_ALU_SBREL_27_20 37
|
|
#define R_ARM_THM_MOVW_ABS_NC 47 /* Direct 16 bit (Thumb32 MOVW) */
|
|
#define R_ARM_THM_MOVT_ABS 48 /* Direct high 16 bit */
|
|
#define R_ARM_GNU_VTENTRY 100
|
|
#define R_ARM_GNU_VTINHERIT 101
|
|
#define R_ARM_THM_PC11 102 /* thumb unconditional branch */
|
|
#define R_ARM_THM_PC9 103 /* thumb conditional branch */
|
|
#define R_ARM_TLS_GD32 \
|
|
104 /* PC-rel 32 bit for global dynamic
|
|
thread local data */
|
|
#define R_ARM_TLS_LDM32 \
|
|
105 /* PC-rel 32 bit for local dynamic
|
|
thread local data */
|
|
#define R_ARM_TLS_LDO32 \
|
|
106 /* 32 bit offset relative to TLS
|
|
block */
|
|
#define R_ARM_TLS_IE32 \
|
|
107 /* PC-rel 32 bit for GOT entry of
|
|
static TLS block offset */
|
|
#define R_ARM_TLS_LE32 \
|
|
108 /* 32 bit offset relative to static
|
|
TLS block */
|
|
#define R_ARM_RXPC25 249
|
|
#define R_ARM_RSBREL32 250
|
|
#define R_ARM_THM_RPC22 251
|
|
#define R_ARM_RREL32 252
|
|
#define R_ARM_RABS22 253
|
|
#define R_ARM_RPC24 254
|
|
#define R_ARM_RBASE 255
|
|
/* Keep this the last entry. */
|
|
#define R_ARM_NUM 256
|
|
|
|
#endif /* elf.h */
|