/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1996-1998 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _SYS_ELF32_H_ #define _SYS_ELF32_H_ 1 #include <sys/elf_common.h> /* * ELF definitions common to all 32-bit architectures. */ typedef uint32_t Elf32_Addr; typedef uint16_t Elf32_Half; typedef uint32_t Elf32_Off; typedef int32_t Elf32_Sword; typedef uint32_t Elf32_Word; typedef uint64_t Elf32_Lword; typedef Elf32_Word Elf32_Hashelt; /* Non-standard class-dependent datatype used for abstraction. */ typedef Elf32_Word Elf32_Size; typedef Elf32_Sword Elf32_Ssize; /* * ELF header. */ typedef struct { unsigned char e_ident[EI_NIDENT]; /* File identification. */ Elf32_Half e_type; /* File type. */ Elf32_Half e_machine; /* Machine architecture. */ Elf32_Word e_version; /* ELF format version. */ Elf32_Addr e_entry; /* Entry point. */ Elf32_Off e_phoff; /* Program header file offset. */ Elf32_Off e_shoff; /* Section header file offset. */ Elf32_Word e_flags; /* Architecture-specific flags. */ Elf32_Half e_ehsize; /* Size of ELF header in bytes. */ Elf32_Half e_phentsize; /* Size of program header entry. */ Elf32_Half e_phnum; /* Number of program header entries. */ Elf32_Half e_shentsize; /* Size of section header entry. */ Elf32_Half e_shnum; /* Number of section header entries. */ Elf32_Half e_shstrndx; /* Section name strings section. */ } Elf32_Ehdr; /* * Shared object information, found in SHT_MIPS_LIBLIST. */ typedef struct { Elf32_Word l_name; /* The name of a shared object. */ Elf32_Word l_time_stamp; /* 32-bit timestamp. */ Elf32_Word l_checksum; /* Checksum of visible symbols, sizes. */ Elf32_Word l_version; /* Interface version string index. */ Elf32_Word l_flags; /* Flags (LL_*). */ } Elf32_Lib; /* * Section header. */ typedef struct { Elf32_Word sh_name; /* Section name (index into the section header string table). */ Elf32_Word sh_type; /* Section type. */ Elf32_Word sh_flags; /* Section flags. */ Elf32_Addr sh_addr; /* Address in memory image. */ Elf32_Off sh_offset; /* Offset in file. */ Elf32_Word sh_size; /* Size in bytes. */ Elf32_Word sh_link; /* Index of a related section. */ Elf32_Word sh_info; /* Depends on section type. */ Elf32_Word sh_addralign; /* Alignment in bytes. */ Elf32_Word sh_entsize; /* Size of each entry in section. */ } Elf32_Shdr; /* * Program header. */ typedef struct { Elf32_Word p_type; /* Entry type. */ Elf32_Off p_offset; /* File offset of contents. */ Elf32_Addr p_vaddr; /* Virtual address in memory image. */ Elf32_Addr p_paddr; /* Physical address (not used). */ Elf32_Word p_filesz; /* Size of contents in file. */ Elf32_Word p_memsz; /* Size of contents in memory. */ Elf32_Word p_flags; /* Access permission flags. */ Elf32_Word p_align; /* Alignment in memory and file. */ } Elf32_Phdr; /* * Dynamic structure. The ".dynamic" section contains an array of them. */ typedef struct { Elf32_Sword d_tag; /* Entry type. */ union { Elf32_Word d_val; /* Integer value. */ Elf32_Addr d_ptr; /* Address value. */ } d_un; } Elf32_Dyn; /* * Relocation entries. */ /* Relocations that don't need an addend field. */ typedef struct { Elf32_Addr r_offset; /* Location to be relocated. */ Elf32_Word r_info; /* Relocation type and symbol index. */ } Elf32_Rel; /* Relocations that need an addend field. */ typedef struct { Elf32_Addr r_offset; /* Location to be relocated. */ Elf32_Word r_info; /* Relocation type and symbol index. */ Elf32_Sword r_addend; /* Addend. */ } Elf32_Rela; /* Macros for accessing the fields of r_info. */ #define ELF32_R_SYM(info) ((info) >> 8) #define ELF32_R_TYPE(info) ((unsigned char)(info)) /* Macro for constructing r_info from field values. */ #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) typedef Elf32_Word Elf32_Relr; /* * Note entry header */ typedef Elf_Note Elf32_Nhdr; /* * Move entry */ typedef struct { Elf32_Lword m_value; /* symbol value */ Elf32_Word m_info; /* size + index */ Elf32_Word m_poffset; /* symbol offset */ Elf32_Half m_repeat; /* repeat count */ Elf32_Half m_stride; /* stride info */ } Elf32_Move; /* * The macros compose and decompose values for Move.r_info * * sym = ELF32_M_SYM(M.m_info) * size = ELF32_M_SIZE(M.m_info) * M.m_info = ELF32_M_INFO(sym, size) */ #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)) /* * Hardware/Software capabilities entry */ typedef struct { Elf32_Word c_tag; /* how to interpret value */ union { Elf32_Word c_val; Elf32_Addr c_ptr; } c_un; } Elf32_Cap; /* * Symbol table entries. */ typedef struct { Elf32_Word st_name; /* String table index of name. */ Elf32_Addr st_value; /* Symbol value. */ Elf32_Word st_size; /* Size of associated object. */ unsigned char st_info; /* Type and binding information. */ unsigned char st_other; /* Reserved (not used). */ Elf32_Half st_shndx; /* Section index of symbol. */ } Elf32_Sym; /* Macros for accessing the fields of st_info. */ #define ELF32_ST_BIND(info) ((info) >> 4) #define ELF32_ST_TYPE(info) ((info) & 0xf) /* Macro for constructing st_info from field values. */ #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) /* Macro for accessing the fields of st_other. */ #define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) /* Structures used by Sun & GNU symbol versioning. */ typedef struct { Elf32_Half vd_version; Elf32_Half vd_flags; Elf32_Half vd_ndx; Elf32_Half vd_cnt; Elf32_Word vd_hash; Elf32_Word vd_aux; Elf32_Word vd_next; } Elf32_Verdef; typedef struct { Elf32_Word vda_name; Elf32_Word vda_next; } Elf32_Verdaux; typedef struct { Elf32_Half vn_version; Elf32_Half vn_cnt; Elf32_Word vn_file; Elf32_Word vn_aux; Elf32_Word vn_next; } Elf32_Verneed; typedef struct { Elf32_Word vna_hash; Elf32_Half vna_flags; Elf32_Half vna_other; Elf32_Word vna_name; Elf32_Word vna_next; } Elf32_Vernaux; typedef Elf32_Half Elf32_Versym; typedef struct { Elf32_Half si_boundto; /* direct bindings - symbol bound to */ Elf32_Half si_flags; /* per symbol flags */ } Elf32_Syminfo; typedef struct { Elf32_Word ch_type; Elf32_Word ch_size; Elf32_Word ch_addralign; } Elf32_Chdr; #endif /* !_SYS_ELF32_H_ */
