/* * Copyright (c) 1995, 1994, 1993, 1992, 1991, 1990 * Open Software Foundation, Inc. * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appears in all copies and * that both the copyright notice and this permission notice appear in * supporting documentation, and that the name of ("OSF") or Open Software * Foundation not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior permission. * * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL OSF BE LIABLE FOR ANY * SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN * ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE * */ /* * OSF Research Institute MK6.1 (unencumbered) 1/31/1995 */ #ifndef _MACH_EXEC_ELF_H_ #define _MACH_EXEC_ELF_H_ #include /* ELF Header - figure 4-3, page 4-4 */ #define EI_NIDENT 16 typedef struct { 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_ident[] identification indexes - figure 4-4, page 4-7 */ #define EI_MAG0 0 #define EI_MAG1 1 #define EI_MAG2 2 #define EI_MAG3 3 #define EI_CLASS 4 #define EI_DATA 5 #define EI_VERSION 6 #define EI_PAD 7 /* magic number - pg 4-8 */ #define ELFMAG0 0x7f #define ELFMAG1 'E' #define ELFMAG2 'L' #define ELFMAG3 'F' /* file class or capacity - page 4-8 */ #define ELFCLASSNONE 0 #define ELFCLASS32 1 #define ELFCLASS64 2 /* date encoding - page 4-9 */ #define ELFDATANONE 0 #define ELFDATA2LSB 1 #define ELFDATA2MSB 2 /* object file types - page 4-5 */ #define ET_NONE 0 #define ET_REL 1 #define ET_EXEC 2 #define ET_DYN 3 #define ET_CORE 4 #define ET_LOPROC 0xff00 #define ET_HIPROC 0xffff /* architecture - page 4-5 */ #define EM_NONE 0 #define EM_M32 1 #define EM_SPARC 2 #define EM_386 3 #define EM_68K 4 #define EM_88K 5 #define EM_860 7 #define EM_MIPS 8 #define EM_MIPS_RS4_BE 10 #define EM_SPARC64 11 #define EM_PARISC 15 #define EM_PPC 20 /* version - page 4-6 */ #define EV_NONE 0 #define EV_CURRENT 1 /* special section indexes - page 4-11, figure 4-7 */ #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 header - page 4-13, figure 4-8 */ typedef struct { 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 - page 4-15, figure 4-9 */ #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 /* section attribute flags - page 4-18, figure 4-11 */ #define SHF_WRITE 0x1 #define SHF_ALLOC 0x2 #define SHF_EXECINSTR 0x4 #define SHF_MASKPROC 0xf0000000 /* symbol table - page 4-25, figure 4-15 */ typedef struct { 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; /* symbol type and binding attributes - page 4-26 */ #define ELF32_ST_BIND(i) ((i) >> 4) #define ELF32_ST_TYPE(i) ((i) & 0xf) #define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf)) /* symbol binding - page 4-26, figure 4-16 */ #define STB_LOCAL 0 #define STB_GLOBAL 1 #define STB_WEAK 2 #define STB_LOPROC 13 #define STB_HIPROC 15 /* symbol types - page 4-28, figure 4-17 */ #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 - page 4-31, figure 4-19 */ typedef struct { Elf32_Addr r_offset; Elf32_Word r_info; } Elf32_Rel; typedef struct { Elf32_Addr r_offset; Elf32_Word r_info; Elf32_Sword r_addend; } Elf32_Rela; /* Macros to split/combine relocation type and symbol page 4-32 */ #define ELF32_R_SYM(__i) ((__i)>>8) #define ELF32_R_TYPE(__i) ((unsigned char) (__i)) #define ELF32_R_INFO(__s, __t) (((__s)<<8) + (unsigned char) (__t)) /* program header - page 5-2, figure 5-1 */ typedef struct { 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; /* segment types - page 5-3, figure 5-2 */ #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 /* segment permissions - page 5-6 */ #define PF_X 0x1 #define PF_W 0x2 #define PF_R 0x4 #define PF_MASKPROC 0xf0000000 /* dynamic structure - page 5-15, figure 5-9 */ typedef struct { Elf32_Sword d_tag; union { Elf32_Word d_val; Elf32_Addr d_ptr; } d_un; } Elf32_Dyn; /* Dynamic array tags - page 5-16, figure 5-10. */ #define DT_NULL 0 #define DT_NEEDED 1 #define DT_PLTRELSZ 2 #define DT_PLTGOT 3 #define DT_HASH 4 #define DT_STRTAB 5 #define DT_SYMTAB 6 #define DT_RELA 7 #define DT_RELASZ 8 #define DT_RELAENT 9 #define DT_STRSZ 10 #define DT_SYMENT 11 #define DT_INIT 12 #define DT_FINI 13 #define DT_SONAME 14 #define DT_RPATH 15 #define DT_SYMBOLIC 16 #define DT_REL 17 #define DT_RELSZ 18 #define DT_RELENT 19 #define DT_PLTREL 20 #define DT_DEBUG 21 #define DT_TEXTREL 22 #define DT_JMPREL 23 /* * Bootstrap doesn't need machine dependent extensions. */ #endif /* _MACH_EXEC_ELF_H_ */