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Diffstat (limited to 'lldb/source/Plugins/ObjectFile/ELF/elf.h')
| -rw-r--r-- | lldb/source/Plugins/ObjectFile/ELF/elf.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/lldb/source/Plugins/ObjectFile/ELF/elf.h b/lldb/source/Plugins/ObjectFile/ELF/elf.h new file mode 100644 index 00000000000..9d08119c597 --- /dev/null +++ b/lldb/source/Plugins/ObjectFile/ELF/elf.h @@ -0,0 +1,240 @@ +//===-- elf.h ---------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef __elf_h__ +#define __elf_h__ + +typedef uint16_t Elf32_Half; +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf32_Addr; +typedef uint32_t Elf32_Off; + + +#define EI_NIDENT 16 + +//---------------------------------------------------------------------- +// ELF Header +//---------------------------------------------------------------------- +typedef struct Elf32_Ehdr_Tag +{ + unsigned char e_ident[EI_NIDENT]; + Elf32_Half e_type; + Elf32_Half e_machine; + Elf32_Word e_version; + Elf32_Addr e_entry; + Elf32_Off e_phoff; + Elf32_Off e_shoff; + Elf32_Word e_flags; + Elf32_Half e_ehsize; + Elf32_Half e_phentsize; + Elf32_Half e_phnum; + Elf32_Half e_shentsize; + Elf32_Half e_shnum; + Elf32_Half e_shstrndx; +} Elf32_Ehdr; + +//---------------------------------------------------------------------- +// e_type +// +// This member identifies the object file type. +//---------------------------------------------------------------------- +#define ET_NONE 0 // No file type +#define ET_REL 1 // Relocatable file +#define ET_EXEC 2 // Executable file +#define ET_DYN 3 // Shared object file +#define ET_CORE 4 // Core file +#define ET_LOPROC 0xff00 // Processor-specific +#define ET_HIPROC 0xffff // Processor-specific + +//---------------------------------------------------------------------- +// e_machine +// +// Machine Type +//---------------------------------------------------------------------- +#define EM_NONE 0 // No machine +#define EM_M32 1 // AT&T WE 32100 +#define EM_SPARC 2 // SPARC +#define EM_386 3 // Intel 80386 +#define EM_68K 4 // Motorola 68000 +#define EM_88K 5 // Motorola 88000 +#define EM_860 7 // Intel 80860 +#define EM_MIPS 8 // MIPS RS3000 +#define EM_PPC 20 // PowerPC +#define EM_PPC64 21 // PowerPC64 +#define EM_ARM 40 // ARM + + +//---------------------------------------------------------------------- +// e_ident indexes +//---------------------------------------------------------------------- +#define EI_MAG0 0 // File identification +#define EI_MAG1 1 // File identification +#define EI_MAG2 2 // File identification +#define EI_MAG3 3 // File identification +#define EI_CLASS 4 // File class +#define EI_DATA 5 // Data encoding +#define EI_VERSION 6 // File version +#define EI_PAD 7 // Start of padding bytes + + +//---------------------------------------------------------------------- +// EI_DATA definitions +//---------------------------------------------------------------------- +#define ELFDATANONE 0 // Invalid data encoding +#define ELFDATA2LSB 1 // Little Endian +#define ELFDATA2MSB 2 // Big Endian + +//---------------------------------------------------------------------- +// Section Header +//---------------------------------------------------------------------- +typedef struct Elf32_Shdr_Tag +{ + Elf32_Word sh_name; + Elf32_Word sh_type; + Elf32_Word sh_flags; + Elf32_Addr sh_addr; + Elf32_Off sh_offset; + Elf32_Word sh_size; + Elf32_Word sh_link; + Elf32_Word sh_info; + Elf32_Word sh_addralign; + Elf32_Word sh_entsize; +} Elf32_Shdr; + +//---------------------------------------------------------------------- +// Section Types (sh_type) +//---------------------------------------------------------------------- +#define SHT_NULL 0 +#define SHT_PROGBITS 1 +#define SHT_SYMTAB 2 +#define SHT_STRTAB 3 +#define SHT_RELA 4 +#define SHT_HASH 5 +#define SHT_DYNAMIC 6 +#define SHT_NOTE 7 +#define SHT_NOBITS 8 +#define SHT_REL 9 +#define SHT_SHLIB 10 +#define SHT_DYNSYM 11 +#define SHT_LOPROC 0x70000000 +#define SHT_HIPROC 0x7fffffff +#define SHT_LOUSER 0x80000000 +#define SHT_HIUSER 0xffffffff + +//---------------------------------------------------------------------- +// Special Section Indexes +//---------------------------------------------------------------------- +#define SHN_UNDEF 0 +#define SHN_LORESERVE 0xff00 +#define SHN_LOPROC 0xff00 +#define SHN_HIPROC 0xff1f +#define SHN_ABS 0xfff1 +#define SHN_COMMON 0xfff2 +#define SHN_HIRESERVE 0xffff + +//---------------------------------------------------------------------- +// Section Attribute Flags (sh_flags) +//---------------------------------------------------------------------- +#define SHF_WRITE 0x1 +#define SHF_ALLOC 0x2 +#define SHF_EXECINSTR 0x4 +#define SHF_MASKPROC 0xf0000000 + + +//---------------------------------------------------------------------- +// Symbol Table Entry Header +//---------------------------------------------------------------------- +typedef struct Elf32_Sym_Tag +{ + Elf32_Word st_name; + Elf32_Addr st_value; + Elf32_Word st_size; + unsigned char st_info; + unsigned char st_other; + Elf32_Half st_shndx; +} Elf32_Sym; + + +#define ELF32_ST_BIND(i) ((i)>>4) +#define ELF32_ST_TYPE(i) ((i)&0xf) +#define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf)) + +// ST_BIND +#define STB_LOCAL 0 +#define STB_GLOBAL 1 +#define STB_WEAK 2 +#define STB_LOPROC 13 +#define STB_HIPROC 15 + +// ST_TYPE +#define STT_NOTYPE 0 +#define STT_OBJECT 1 +#define STT_FUNC 2 +#define STT_SECTION 3 +#define STT_FILE 4 +#define STT_LOPROC 13 +#define STT_HIPROC 15 + + +//---------------------------------------------------------------------- +// Relocation Entries +//---------------------------------------------------------------------- +typedef struct Elf32_Rel_Tag +{ + Elf32_Addr r_offset; + Elf32_Word r_info; +} Elf32_Rel; + +typedef struct Elf32_Rela_Tag +{ + Elf32_Addr r_offset; + Elf32_Word r_info; + Elf32_Sword r_addend; +} Elf32_Rela; + +#define ELF32_R_SYM(i) ((i)>>8) +#define ELF32_R_TYPE(i) ((unsignedchar)(i)) +#define ELF32_R_INFO(s,t) (((s)<<8)+(unsignedchar)(t)) + + +//---------------------------------------------------------------------- +// Program Headers +//---------------------------------------------------------------------- +typedef struct Elf32_Phdr_Tag +{ + Elf32_Word p_type; + Elf32_Off p_offset; + Elf32_Addr p_vaddr; + Elf32_Addr p_paddr; + Elf32_Word p_filesz; + Elf32_Word p_memsz; + Elf32_Word p_flags; + Elf32_Word p_align; +} Elf32_Phdr; + +//---------------------------------------------------------------------- +// Program Header Type (p_type) +//---------------------------------------------------------------------- +#define PT_NULL 0 +#define PT_LOAD 1 +#define PT_DYNAMIC 2 +#define PT_INTERP 3 +#define PT_NOTE 4 +#define PT_SHLIB 5 +#define PT_PHDR 6 +#define PT_LOPROC 0x70000000 +#define PT_HIPROC 0x7fffffff + +#define PF_X (1 << 0) // executable +#define PF_W (1 << 1) // writable +#define PF_R (1 << 2) // readable + + +#endif // __elf_h__ |
