namespace ELF {
typedef uint32_t Elf32_Addr; // Program address
-typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Off; // File offset
-typedef int32_t Elf32_Sword;
+typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Word;
+typedef int32_t Elf32_Sword;
typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
-typedef int32_t Elf64_Shalf;
-typedef int32_t Elf64_Sword;
+typedef uint16_t Elf64_Half;
typedef uint32_t Elf64_Word;
-typedef int64_t Elf64_Sxword;
+typedef int32_t Elf64_Sword;
typedef uint64_t Elf64_Xword;
-typedef uint32_t Elf64_Half;
-typedef uint16_t Elf64_Quarter;
+typedef int64_t Elf64_Sxword;
// Object file magic string.
static const char ElfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
// types (see above).
struct Elf64_Ehdr {
unsigned char e_ident[EI_NIDENT];
- Elf64_Quarter e_type;
- Elf64_Quarter e_machine;
- Elf64_Half e_version;
+ Elf64_Half e_type;
+ Elf64_Half e_machine;
+ Elf64_Word e_version;
Elf64_Addr e_entry;
Elf64_Off e_phoff;
Elf64_Off e_shoff;
- Elf64_Half e_flags;
- Elf64_Quarter e_ehsize;
- Elf64_Quarter e_phentsize;
- Elf64_Quarter e_phnum;
- Elf64_Quarter e_shentsize;
- Elf64_Quarter e_shnum;
- Elf64_Quarter e_shstrndx;
+ Elf64_Word e_flags;
+ Elf64_Half e_ehsize;
+ Elf64_Half e_phentsize;
+ Elf64_Half e_phnum;
+ Elf64_Half e_shentsize;
+ Elf64_Half e_shnum;
+ Elf64_Half e_shstrndx;
bool checkMagic() const {
return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
}
EM_CYPRESS_M8C = 161, // Cypress M8C microprocessor
EM_R32C = 162, // Renesas R32C series microprocessors
EM_TRIMEDIA = 163, // NXP Semiconductors TriMedia architecture family
- EM_QDSP6 = 164, // QUALCOMM DSP6 Processor
+ EM_HEXAGON = 164, // Qualcomm Hexagon processor
EM_8051 = 165, // Intel 8051 and variants
EM_STXP7X = 166, // STMicroelectronics STxP7x family of configurable
// and extensible RISC processors
R_MICROBLAZE_COPY = 21
};
+// ELF Relocation types for PPC32
enum {
R_PPC_NONE = 0, /* No relocation. */
R_PPC_ADDR32 = 1,
R_PPC_REL32 = 26
};
+// ELF Relocation types for PPC64
+enum {
+ R_PPC64_ADDR16_LO = 4,
+ R_PPC64_ADDR16_HI = 5,
+ R_PPC64_ADDR14 = 7,
+ R_PPC64_REL24 = 10,
+ R_PPC64_ADDR64 = 38,
+ R_PPC64_ADDR16_HIGHER = 39,
+ R_PPC64_ADDR16_HIGHEST = 41,
+ R_PPC64_TOC16 = 47,
+ R_PPC64_TOC = 51,
+ R_PPC64_TOC16_DS = 63
+};
+
// ARM Specific e_flags
enum { EF_ARM_EABIMASK = 0xFF000000U };
R_ARM_THM_TLS_DESCSEQ32 = 0x82
};
+// Mips Specific e_flags
+enum {
+ EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
+ EF_MIPS_PIC = 0x00000002, // Position independent code
+ EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code
+ EF_MIPS_ARCH_1 = 0x00000000, // MIPS1 instruction set
+ EF_MIPS_ARCH_2 = 0x10000000, // MIPS2 instruction set
+ EF_MIPS_ARCH_3 = 0x20000000, // MIPS3 instruction set
+ EF_MIPS_ARCH_4 = 0x30000000, // MIPS4 instruction set
+ EF_MIPS_ARCH_5 = 0x40000000, // MIPS5 instruction set
+ EF_MIPS_ARCH_32 = 0x50000000, // MIPS32 instruction set per linux not elf.h
+ EF_MIPS_ARCH_64 = 0x60000000, // MIPS64 instruction set per linux not elf.h
+ EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
+ EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
+ EF_MIPS_ARCH = 0xf0000000 // Mask for applying EF_MIPS_ARCH_ variant
+};
+// ELF Relocation types for Mips
+// .
+enum {
+ R_MIPS_NONE = 0,
+ R_MIPS_16 = 1,
+ R_MIPS_32 = 2,
+ R_MIPS_REL32 = 3,
+ R_MIPS_26 = 4,
+ R_MIPS_HI16 = 5,
+ R_MIPS_LO16 = 6,
+ R_MIPS_GPREL16 = 7,
+ R_MIPS_LITERAL = 8,
+ R_MIPS_GOT16 = 9,
+ R_MIPS_GOT = 9,
+ R_MIPS_PC16 = 10,
+ R_MIPS_CALL16 = 11,
+ R_MIPS_GPREL32 = 12,
+ R_MIPS_SHIFT5 = 16,
+ R_MIPS_SHIFT6 = 17,
+ R_MIPS_64 = 18,
+ R_MIPS_GOT_DISP = 19,
+ R_MIPS_GOT_PAGE = 20,
+ R_MIPS_GOT_OFST = 21,
+ R_MIPS_GOT_HI16 = 22,
+ R_MIPS_GOT_LO16 = 23,
+ R_MIPS_SUB = 24,
+ R_MIPS_INSERT_A = 25,
+ R_MIPS_INSERT_B = 26,
+ R_MIPS_DELETE = 27,
+ R_MIPS_HIGHER = 28,
+ R_MIPS_HIGHEST = 29,
+ R_MIPS_CALL_HI16 = 30,
+ R_MIPS_CALL_LO16 = 31,
+ R_MIPS_SCN_DISP = 32,
+ R_MIPS_REL16 = 33,
+ R_MIPS_ADD_IMMEDIATE = 34,
+ R_MIPS_PJUMP = 35,
+ R_MIPS_RELGOT = 36,
+ R_MIPS_JALR = 37,
+ R_MIPS_TLS_DTPMOD32 = 38,
+ R_MIPS_TLS_DTPREL32 = 39,
+ R_MIPS_TLS_DTPMOD64 = 40,
+ R_MIPS_TLS_DTPREL64 = 41,
+ R_MIPS_TLS_GD = 42,
+ R_MIPS_TLS_LDM = 43,
+ R_MIPS_TLS_DTPREL_HI16 = 44,
+ R_MIPS_TLS_DTPREL_LO16 = 45,
+ R_MIPS_TLS_GOTTPREL = 46,
+ R_MIPS_TLS_TPREL32 = 47,
+ R_MIPS_TLS_TPREL64 = 48,
+ R_MIPS_TLS_TPREL_HI16 = 49,
+ R_MIPS_TLS_TPREL_LO16 = 50,
+ R_MIPS_GLOB_DAT = 51,
+ R_MIPS_COPY = 126,
+ R_MIPS_JUMP_SLOT = 127,
+ R_MIPS_NUM = 218
+};
+
+// ELF Relocation types for Hexagon
+// Release 5 ABI - Document: 80-V9418-3 Rev. J
+enum {
+ R_HEX_NONE = 0,
+ R_HEX_B22_PCREL = 1,
+ R_HEX_B15_PCREL = 2,
+ R_HEX_B7_PCREL = 3,
+ R_HEX_LO16 = 4,
+ R_HEX_HI16 = 5,
+ R_HEX_32 = 6,
+ R_HEX_16 = 7,
+ R_HEX_8 = 8,
+ R_HEX_GPREL16_0 = 9,
+ R_HEX_GPREL16_1 = 10,
+ R_HEX_GPREL16_2 = 11,
+ R_HEX_GPREL16_3 = 12,
+ R_HEX_HL16 = 13,
+ R_HEX_B13_PCREL = 14,
+ R_HEX_B9_PCREL = 15,
+ R_HEX_B32_PCREL_X = 16,
+ R_HEX_32_6_X = 17,
+ R_HEX_B22_PCREL_X = 18,
+ R_HEX_B15_PCREL_X = 19,
+ R_HEX_B13_PCREL_X = 20,
+ R_HEX_B9_PCREL_X = 21,
+ R_HEX_B7_PCREL_X = 22,
+ R_HEX_16_X = 23,
+ R_HEX_12_X = 24,
+ R_HEX_11_X = 25,
+ R_HEX_10_X = 26,
+ R_HEX_9_X = 27,
+ R_HEX_8_X = 28,
+ R_HEX_7_X = 29,
+ R_HEX_6_X = 30,
+ R_HEX_32_PCREL = 31,
+ R_HEX_COPY = 32,
+ R_HEX_GLOB_DAT = 33,
+ R_HEX_JMP_SLOT = 34,
+ R_HEX_RELATIVE = 35,
+ R_HEX_PLT_B22_PCREL = 36,
+ R_HEX_GOTREL_LO16 = 37,
+ R_HEX_GOTREL_HI16 = 38,
+ R_HEX_GOTREL_32 = 39,
+ R_HEX_GOT_LO16 = 40,
+ R_HEX_GOT_HI16 = 41,
+ R_HEX_GOT_32 = 42,
+ R_HEX_GOT_16 = 43,
+ R_HEX_DTPMOD_32 = 44,
+ R_HEX_DTPREL_LO16 = 45,
+ R_HEX_DTPREL_HI16 = 46,
+ R_HEX_DTPREL_32 = 47,
+ R_HEX_DTPREL_16 = 48,
+ R_HEX_GD_PLT_B22_PCREL = 49,
+ R_HEX_GD_GOT_LO16 = 50,
+ R_HEX_GD_GOT_HI16 = 51,
+ R_HEX_GD_GOT_32 = 52,
+ R_HEX_GD_GOT_16 = 53,
+ R_HEX_IE_LO16 = 54,
+ R_HEX_IE_HI16 = 55,
+ R_HEX_IE_32 = 56,
+ R_HEX_IE_GOT_LO16 = 57,
+ R_HEX_IE_GOT_HI16 = 58,
+ R_HEX_IE_GOT_32 = 59,
+ R_HEX_IE_GOT_16 = 60,
+ R_HEX_TPREL_LO16 = 61,
+ R_HEX_TPREL_HI16 = 62,
+ R_HEX_TPREL_32 = 63,
+ R_HEX_TPREL_16 = 64,
+ R_HEX_6_PCREL_X = 65,
+ R_HEX_GOTREL_32_6_X = 66,
+ R_HEX_GOTREL_16_X = 67,
+ R_HEX_GOTREL_11_X = 68,
+ R_HEX_GOT_32_6_X = 69,
+ R_HEX_GOT_16_X = 70,
+ R_HEX_GOT_11_X = 71,
+ R_HEX_DTPREL_32_6_X = 72,
+ R_HEX_DTPREL_16_X = 73,
+ R_HEX_DTPREL_11_X = 74,
+ R_HEX_GD_GOT_32_6_X = 75,
+ R_HEX_GD_GOT_16_X = 76,
+ R_HEX_GD_GOT_11_X = 77,
+ R_HEX_IE_32_6_X = 78,
+ R_HEX_IE_16_X = 79,
+ R_HEX_IE_GOT_32_6_X = 80,
+ R_HEX_IE_GOT_16_X = 81,
+ R_HEX_IE_GOT_11_X = 82,
+ R_HEX_TPREL_32_6_X = 83,
+ R_HEX_TPREL_16_X = 84,
+ R_HEX_TPREL_11_X = 85
+};
// Section header.
struct Elf32_Shdr {
// Section header for ELF64 - same fields as ELF32, different types.
struct Elf64_Shdr {
- Elf64_Half sh_name;
- Elf64_Half sh_type;
+ Elf64_Word sh_name;
+ Elf64_Word sh_type;
Elf64_Xword sh_flags;
Elf64_Addr sh_addr;
Elf64_Off sh_offset;
Elf64_Xword sh_size;
- Elf64_Half sh_link;
- Elf64_Half sh_info;
+ Elf64_Word sh_link;
+ Elf64_Word sh_info;
Elf64_Xword sh_addralign;
Elf64_Xword sh_entsize;
};
SHT_GROUP = 17, // Section group.
SHT_SYMTAB_SHNDX = 18, // Indices for SHN_XINDEX entries.
SHT_LOOS = 0x60000000, // Lowest operating system-specific type.
+ SHT_GNU_ATTRIBUTES= 0x6ffffff5, // Object attributes.
+ SHT_GNU_HASH = 0x6ffffff6, // GNU-style hash table.
+ SHT_GNU_verdef = 0x6ffffffd, // GNU version definitions.
+ SHT_GNU_verneed = 0x6ffffffe, // GNU version references.
+ SHT_GNU_versym = 0x6fffffff, // GNU symbol versions table.
SHT_HIOS = 0x6fffffff, // Highest operating system-specific type.
SHT_LOPROC = 0x70000000, // Lowest processor architecture-specific type.
// Fixme: All this is duplicated in MCSectionELF. Why??
STT_TLS = 6, // Thread local data object
STT_LOOS = 7, // Lowest operating system-specific symbol type
STT_HIOS = 8, // Highest operating system-specific symbol type
+ STT_GNU_IFUNC = 10, // GNU indirect function
STT_LOPROC = 13, // Lowest processor-specific symbol type
STT_HIPROC = 15 // Highest processor-specific symbol type
};
PT_SUNW_EH_FRAME = 0x6474e550,
PT_SUNW_UNWIND = 0x6464e550,
+ PT_GNU_STACK = 0x6474e551, // Indicates stack executability.
+ PT_GNU_RELRO = 0x6474e552, // Read-only after relocation.
+
PT_HIOS = 0x6fffffff, // Highest operating system-specific pt entry type.
PT_LOPROC = 0x70000000, // Lowest processor-specific program hdr entry type.
PT_HIPROC = 0x7fffffff // Highest processor-specific program hdr entry type.
DT_LOOS = 0x60000000, // Start of environment specific tags.
DT_HIOS = 0x6FFFFFFF, // End of environment specific tags.
DT_LOPROC = 0x70000000, // Start of processor specific tags.
- DT_HIPROC = 0x7FFFFFFF // End of processor specific tags.
+ DT_HIPROC = 0x7FFFFFFF, // End of processor specific tags.
+
+ DT_RELACOUNT = 0x6FFFFFF9, // ELF32_Rela count.
+ DT_RELCOUNT = 0x6FFFFFFA, // ELF32_Rel count.
+
+ DT_FLAGS_1 = 0X6FFFFFFB, // Flags_1.
+ DT_VERDEF = 0X6FFFFFFC, // The address of the version definition table.
+ DT_VERDEFNUM = 0X6FFFFFFD, // The number of entries in DT_VERDEF.
+ DT_VERNEED = 0X6FFFFFFE, // The address of the version Dependency table.
+ DT_VERNEEDNUM = 0X6FFFFFFF // The number of entries in DT_VERNEED.
};
// DT_FLAGS values.
DF_STATIC_TLS = 0x10 // Reject attempts to load dynamically.
};
+// State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry.
+enum {
+ DF_1_NOW = 0x00000001, // Set RTLD_NOW for this object.
+ DF_1_GLOBAL = 0x00000002, // Set RTLD_GLOBAL for this object.
+ DF_1_GROUP = 0x00000004, // Set RTLD_GROUP for this object.
+ DF_1_NODELETE = 0x00000008, // Set RTLD_NODELETE for this object.
+ DF_1_LOADFLTR = 0x00000010, // Trigger filtee loading at runtime.
+ DF_1_INITFIRST = 0x00000020, // Set RTLD_INITFIRST for this object.
+ DF_1_NOOPEN = 0x00000040, // Set RTLD_NOOPEN for this object.
+ DF_1_ORIGIN = 0x00000080, // $ORIGIN must be handled.
+ DF_1_DIRECT = 0x00000100, // Direct binding enabled.
+ DF_1_TRANS = 0x00000200,
+ DF_1_INTERPOSE = 0x00000400, // Object is used to interpose.
+ DF_1_NODEFLIB = 0x00000800, // Ignore default lib search path.
+ DF_1_NODUMP = 0x00001000, // Object can't be dldump'ed.
+ DF_1_CONFALT = 0x00002000, // Configuration alternative created.
+ DF_1_ENDFILTEE = 0x00004000, // Filtee terminates filters search.
+ DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time.
+ DF_1_DISPRELPND = 0x00010000 // Disp reloc applied at run-time.
+};
+
+// ElfXX_VerDef structure version (GNU versioning)
+enum {
+ VER_DEF_NONE = 0,
+ VER_DEF_CURRENT = 1
+};
+
+// VerDef Flags (ElfXX_VerDef::vd_flags)
+enum {
+ VER_FLG_BASE = 0x1,
+ VER_FLG_WEAK = 0x2,
+ VER_FLG_INFO = 0x4
+};
+
+// Special constants for the version table. (SHT_GNU_versym/.gnu.version)
+enum {
+ VER_NDX_LOCAL = 0, // Unversioned local symbol
+ VER_NDX_GLOBAL = 1, // Unversioned global symbol
+ VERSYM_VERSION = 0x7fff, // Version Index mask
+ VERSYM_HIDDEN = 0x8000 // Hidden bit (non-default version)
+};
+
+// ElfXX_VerNeed structure version (GNU versioning)
+enum {
+ VER_NEED_NONE = 0,
+ VER_NEED_CURRENT = 1
+};
+
} // end namespace ELF
} // end namespace llvm
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