dnl $NetBSD: elfdefinitions.m4,v 1.5 2022/05/08 17:28:14 jkoshy Exp $ /*- * Copyright (c) 2010,2021 Joseph Koshy * 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. */ divert(-1) define(`VCSID_ELFDEFINITIONS_M4', `Id: elfdefinitions.m4 3984 2022-05-06 11:22:42Z jkoshy') include(`elfconstants.m4')dnl define(`_',`ifelse(eval(len($1) <= 7),1, `#define $1 $2', `#define $1 $2')') divert(0)dnl /* * WARNING: GENERATED FILE. DO NOT MODIFY. * * GENERATED FROM: VCSID_ELFDEFINITIONS_M4 * GENERATED FROM: VCSID_ELFCONSTANTS_M4 */ /* * These definitions are based on: * - The public specification of the ELF format as defined in the * October 2009 draft of System V ABI. * See: http://www.sco.com/developers/gabi/latest/ch4.intro.html * - The May 1998 (version 1.5) draft of "The ELF-64 object format". * - Processor-specific ELF ABI definitions for sparc, i386, amd64, mips, * ia64, powerpc, and RISC-V processors. * - The "Linkers and Libraries Guide", from Sun Microsystems. */ #ifndef _SYS_ELFDEFINITIONS_H_ #define _SYS_ELFDEFINITIONS_H_ /* * Types of capabilities. */ DEFINE_CAPABILITIES() /* * Flags used with dynamic linking entries. */ DEFINE_DYN_FLAGS() /* * Dynamic linking entry types. */ DEFINE_DYN_TYPES() /* Aliases for dynamic linking entry symbols. */ DEFINE_DYN_TYPE_ALIASES() /* * Flags used in the executable header (field: e_flags). */ DEFINE_EHDR_FLAGS() /* * Offsets in the `ei_ident[]' field of an ELF executable header. */ DEFINE_EI_OFFSETS() /* * The ELF class of an object. */ DEFINE_ELF_CLASSES() /* * Endianness of data in an ELF object. */ DEFINE_ELF_DATA_ENDIANNESSES() /* * The magic numbers used in the initial four bytes of an ELF object. * * These numbers are: 0x7F, 'E', 'L' and 'F'. */ DEFINE_ELF_MAGIC_VALUES() /* Additional magic-related constants. */ DEFINE_ELF_MAGIC_ADDITIONAL_CONSTANTS() /* * ELF OS ABI field. */ DEFINE_ELF_OSABIS() /* OS ABI Aliases. */ DEFINE_ELF_OSABI_ALIASES() /* * ELF Machine types: (EM_*). */ DEFINE_ELF_MACHINE_TYPES() /* Other synonyms. */ DEFINE_ELF_MACHINE_TYPE_SYNONYMS() /* * ELF file types: (ET_*). */ DEFINE_ELF_TYPES() /* ELF file format version numbers. */ DEFINE_ELF_FILE_VERSIONS() /* * Flags for section groups. */ DEFINE_GRP_FLAGS() /* * Flags / mask for .gnu.versym sections. */ DEFINE_VERSYMS() /* * Flags used by program header table entries. */ DEFINE_PHDR_FLAGS() /* * Types of program header table entries. */ DEFINE_PHDR_TYPES() /* synonyms. */ DEFINE_PHDR_TYPE_SYNONYMS() /* * Section flags. */ DEFINE_SECTION_FLAGS() /* * Special section indices. */ DEFINE_SECTION_INDICES() /* * Section types. */ DEFINE_SECTION_TYPES() /* Aliases for section types. */ DEFINE_SECTION_TYPE_ALIASES() #define PN_XNUM 0xFFFFU /* Use extended section numbering. */ /* * Symbol binding information. */ DEFINE_SYMBOL_BINDINGS() /* * Symbol types */ DEFINE_SYMBOL_TYPES() /* Additional constants related to symbol types. */ DEFINE_SYMBOL_TYPES_ADDITIONAL_CONSTANTS() /* * Symbol binding. */ DEFINE_SYMBOL_BINDING_KINDS() /* * Symbol visibility. */ DEFINE_SYMBOL_VISIBILITIES() /* * Symbol flags. */ DEFINE_SYMBOL_FLAGS() /* * Versioning dependencies. */ DEFINE_VERSIONING_DEPENDENCIES() /* * Versioning flags. */ DEFINE_VERSIONING_FLAGS() /* * Versioning needs */ DEFINE_VERSIONING_NEEDS() /* * Versioning numbers. */ DEFINE_VERSIONING_NUMBERS() /** ** Relocation types. **/ DEFINE_RELOCATIONS() /* * MIPS ABI related. */ DEFINE_MIPS_ABIS() /** ** ELF Types. **/ typedef uint32_t Elf32_Addr; /* Program address. */ typedef uint8_t Elf32_Byte; /* Unsigned tiny integer. */ typedef uint16_t Elf32_Half; /* Unsigned medium integer. */ typedef uint32_t Elf32_Off; /* File offset. */ typedef uint16_t Elf32_Section; /* Section index. */ typedef int32_t Elf32_Sword; /* Signed integer. */ typedef uint32_t Elf32_Word; /* Unsigned integer. */ typedef uint64_t Elf32_Lword; /* Unsigned long integer. */ typedef uint64_t Elf64_Addr; /* Program address. */ typedef uint8_t Elf64_Byte; /* Unsigned tiny integer. */ typedef uint16_t Elf64_Half; /* Unsigned medium integer. */ typedef uint64_t Elf64_Off; /* File offset. */ typedef uint16_t Elf64_Section; /* Section index. */ typedef int32_t Elf64_Sword; /* Signed integer. */ typedef uint32_t Elf64_Word; /* Unsigned integer. */ typedef uint64_t Elf64_Lword; /* Unsigned long integer. */ typedef uint64_t Elf64_Xword; /* Unsigned long integer. */ typedef int64_t Elf64_Sxword; /* Signed long integer. */ /* * Capability descriptors. */ /* 32-bit capability descriptor. */ typedef struct { Elf32_Word c_tag; /* Type of entry. */ union { Elf32_Word c_val; /* Integer value. */ Elf32_Addr c_ptr; /* Pointer value. */ } c_un; } Elf32_Cap; /* 64-bit capability descriptor. */ typedef struct { Elf64_Xword c_tag; /* Type of entry. */ union { Elf64_Xword c_val; /* Integer value. */ Elf64_Addr c_ptr; /* Pointer value. */ } c_un; } Elf64_Cap; /* * MIPS .conflict section entries. */ /* 32-bit entry. */ typedef struct { Elf32_Addr c_index; } Elf32_Conflict; /* 64-bit entry. */ typedef struct { Elf64_Addr c_index; } Elf64_Conflict; /* * Dynamic section entries. */ /* 32-bit entry. */ typedef struct { Elf32_Sword d_tag; /* Type of entry. */ union { Elf32_Word d_val; /* Integer value. */ Elf32_Addr d_ptr; /* Pointer value. */ } d_un; } Elf32_Dyn; /* 64-bit entry. */ typedef struct { Elf64_Sxword d_tag; /* Type of entry. */ union { Elf64_Xword d_val; /* Integer value. */ Elf64_Addr d_ptr; /* Pointer value; */ } d_un; } Elf64_Dyn; /* * The executable header (EHDR). */ /* 32 bit EHDR. */ typedef struct { unsigned char e_ident[EI_NIDENT]; /* ELF identification. */ Elf32_Half e_type; /* Object file type (ET_*). */ Elf32_Half e_machine; /* Machine type (EM_*). */ Elf32_Word e_version; /* File format version (EV_*). */ Elf32_Addr e_entry; /* Start address. */ Elf32_Off e_phoff; /* File offset to the PHDR table. */ Elf32_Off e_shoff; /* File offset to the SHDRheader. */ Elf32_Word e_flags; /* Flags (EF_*). */ Elf32_Half e_ehsize; /* Elf header size in bytes. */ Elf32_Half e_phentsize; /* PHDR table entry size in bytes. */ Elf32_Half e_phnum; /* Number of PHDR entries. */ Elf32_Half e_shentsize; /* SHDR table entry size in bytes. */ Elf32_Half e_shnum; /* Number of SHDR entries. */ Elf32_Half e_shstrndx; /* Index of section name string table. */ } Elf32_Ehdr; /* 64 bit EHDR. */ typedef struct { unsigned char e_ident[EI_NIDENT]; /* ELF identification. */ Elf64_Half e_type; /* Object file type (ET_*). */ Elf64_Half e_machine; /* Machine type (EM_*). */ Elf64_Word e_version; /* File format version (EV_*). */ Elf64_Addr e_entry; /* Start address. */ Elf64_Off e_phoff; /* File offset to the PHDR table. */ Elf64_Off e_shoff; /* File offset to the SHDRheader. */ Elf64_Word e_flags; /* Flags (EF_*). */ Elf64_Half e_ehsize; /* Elf header size in bytes. */ Elf64_Half e_phentsize; /* PHDR table entry size in bytes. */ Elf64_Half e_phnum; /* Number of PHDR entries. */ Elf64_Half e_shentsize; /* SHDR table entry size in bytes. */ Elf64_Half e_shnum; /* Number of SHDR entries. */ Elf64_Half e_shstrndx; /* Index of section name string table. */ } Elf64_Ehdr; /* * Shared object information. */ /* 32-bit entry. */ 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; /* 64-bit entry. */ typedef struct { Elf64_Word l_name; /* The name of a shared object. */ Elf64_Word l_time_stamp; /* 32-bit timestamp. */ Elf64_Word l_checksum; /* Checksum of visible symbols, sizes. */ Elf64_Word l_version; /* Interface version string index. */ Elf64_Word l_flags; /* Flags (LL_*). */ } Elf64_Lib; DEFINE_LL_FLAGS() /* * Note tags */ DEFINE_NOTE_ENTRY_TYPES() /* Aliases for the ABI tag. */ DEFINE_NOTE_ENTRY_ALIASES() /* * Note descriptors. */ typedef struct { uint32_t n_namesz; /* Length of note's name. */ uint32_t n_descsz; /* Length of note's value. */ uint32_t n_type; /* Type of note. */ } Elf_Note; typedef Elf_Note Elf32_Nhdr; /* 32-bit note header. */ typedef Elf_Note Elf64_Nhdr; /* 64-bit note header. */ /* * MIPS ELF options descriptor header. */ typedef struct { Elf64_Byte kind; /* Type of options. */ Elf64_Byte size; /* Size of option descriptor. */ Elf64_Half section; /* Index of section affected. */ Elf64_Word info; /* Kind-specific information. */ } Elf_Options; /* * Option kinds. */ DEFINE_OPTION_KINDS() /* * ODK_EXCEPTIONS info field masks. */ DEFINE_OPTION_EXCEPTIONS() /* * ODK_PAD info field masks. */ DEFINE_OPTION_PADS() /* * ODK_HWPATCH info field masks and ODK_HWAND/ODK_HWOR info field * and hwp_flags[12] masks. */ DEFINE_ODK_HWPATCH_MASKS() /* * ODK_IDENT/ODK_GP_GROUP info field masks. */ DEFINE_ODK_GP_MASKS() /* * MIPS ELF register info descriptor. */ /* 32 bit RegInfo entry. */ typedef struct { Elf32_Word ri_gprmask; /* Mask of general register used. */ Elf32_Word ri_cprmask[4]; /* Mask of coprocessor register used. */ Elf32_Addr ri_gp_value; /* GP register value. */ } Elf32_RegInfo; /* 64 bit RegInfo entry. */ typedef struct { Elf64_Word ri_gprmask; /* Mask of general register used. */ Elf64_Word ri_pad; /* Padding. */ Elf64_Word ri_cprmask[4]; /* Mask of coprocessor register used. */ Elf64_Addr ri_gp_value; /* GP register value. */ } Elf64_RegInfo; /* * Program Header Table (PHDR) entries. */ /* 32 bit PHDR entry. */ typedef struct { Elf32_Word p_type; /* Type of segment. */ Elf32_Off p_offset; /* File offset to segment. */ Elf32_Addr p_vaddr; /* Virtual address in memory. */ Elf32_Addr p_paddr; /* Physical address (if relevant). */ Elf32_Word p_filesz; /* Size of segment in file. */ Elf32_Word p_memsz; /* Size of segment in memory. */ Elf32_Word p_flags; /* Segment flags. */ Elf32_Word p_align; /* Alignment constraints. */ } Elf32_Phdr; /* 64 bit PHDR entry. */ typedef struct { Elf64_Word p_type; /* Type of segment. */ Elf64_Word p_flags; /* Segment flags. */ Elf64_Off p_offset; /* File offset to segment. */ Elf64_Addr p_vaddr; /* Virtual address in memory. */ Elf64_Addr p_paddr; /* Physical address (if relevant). */ Elf64_Xword p_filesz; /* Size of segment in file. */ Elf64_Xword p_memsz; /* Size of segment in memory. */ Elf64_Xword p_align; /* Alignment constraints. */ } Elf64_Phdr; /* * Move entries, for describing data in COMMON blocks in a compact * manner. */ /* 32-bit move entry. */ typedef struct { Elf32_Lword m_value; /* Initialization value. */ Elf32_Word m_info; /* Encoded size and index. */ Elf32_Word m_poffset; /* Offset relative to symbol. */ Elf32_Half m_repeat; /* Repeat count. */ Elf32_Half m_stride; /* Number of units to skip. */ } Elf32_Move; /* 64-bit move entry. */ typedef struct { Elf64_Lword m_value; /* Initialization value. */ Elf64_Xword m_info; /* Encoded size and index. */ Elf64_Xword m_poffset; /* Offset relative to symbol. */ Elf64_Half m_repeat; /* Repeat count. */ Elf64_Half m_stride; /* Number of units to skip. */ } Elf64_Move; #define ELF32_M_SYM(I) ((I) >> 8) #define ELF32_M_SIZE(I) ((unsigned char) (I)) #define ELF32_M_INFO(M, S) (((M) << 8) + (unsigned char) (S)) #define ELF64_M_SYM(I) ((I) >> 8) #define ELF64_M_SIZE(I) ((unsigned char) (I)) #define ELF64_M_INFO(M, S) (((M) << 8) + (unsigned char) (S)) /* * Section Header Table (SHDR) entries. */ /* 32 bit SHDR */ typedef struct { Elf32_Word sh_name; /* index of section name */ Elf32_Word sh_type; /* section type */ Elf32_Word sh_flags; /* section flags */ Elf32_Addr sh_addr; /* in-memory address of section */ Elf32_Off sh_offset; /* file offset of section */ Elf32_Word sh_size; /* section size in bytes */ Elf32_Word sh_link; /* section header table link */ Elf32_Word sh_info; /* extra information */ Elf32_Word sh_addralign; /* alignment constraint */ Elf32_Word sh_entsize; /* size for fixed-size entries */ } Elf32_Shdr; /* 64 bit SHDR */ typedef struct { Elf64_Word sh_name; /* index of section name */ Elf64_Word sh_type; /* section type */ Elf64_Xword sh_flags; /* section flags */ Elf64_Addr sh_addr; /* in-memory address of section */ Elf64_Off sh_offset; /* file offset of section */ Elf64_Xword sh_size; /* section size in bytes */ Elf64_Word sh_link; /* section header table link */ Elf64_Word sh_info; /* extra information */ Elf64_Xword sh_addralign; /* alignment constraint */ Elf64_Xword sh_entsize; /* size for fixed-size entries */ } Elf64_Shdr; /* * Symbol table entries. */ typedef struct { Elf32_Word st_name; /* index of symbol's name */ Elf32_Addr st_value; /* value for the symbol */ Elf32_Word st_size; /* size of associated data */ unsigned char st_info; /* type and binding attributes */ unsigned char st_other; /* visibility */ Elf32_Half st_shndx; /* index of related section */ } Elf32_Sym; typedef struct { Elf64_Word st_name; /* index of symbol's name */ unsigned char st_info; /* type and binding attributes */ unsigned char st_other; /* visibility */ Elf64_Half st_shndx; /* index of related section */ Elf64_Addr st_value; /* value for the symbol */ Elf64_Xword st_size; /* size of associated data */ } Elf64_Sym; #define ELF32_ST_BIND(I) ((I) >> 4) #define ELF32_ST_TYPE(I) ((I) & 0xFU) #define ELF32_ST_INFO(B,T) (((B) << 4) + ((T) & 0xF)) #define ELF64_ST_BIND(I) ((I) >> 4) #define ELF64_ST_TYPE(I) ((I) & 0xFU) #define ELF64_ST_INFO(B,T) (((B) << 4) + ((T) & 0xF)) #define ELF32_ST_VISIBILITY(O) ((O) & 0x3) #define ELF64_ST_VISIBILITY(O) ((O) & 0x3) /* * Syminfo descriptors, containing additional symbol information. */ /* 32-bit entry. */ typedef struct { Elf32_Half si_boundto; /* Entry index with additional flags. */ Elf32_Half si_flags; /* Flags. */ } Elf32_Syminfo; /* 64-bit entry. */ typedef struct { Elf64_Half si_boundto; /* Entry index with additional flags. */ Elf64_Half si_flags; /* Flags. */ } Elf64_Syminfo; /* * Relocation descriptors. */ typedef struct { Elf32_Addr r_offset; /* location to apply relocation to */ Elf32_Word r_info; /* type+section for relocation */ } Elf32_Rel; typedef struct { Elf32_Addr r_offset; /* location to apply relocation to */ Elf32_Word r_info; /* type+section for relocation */ Elf32_Sword r_addend; /* constant addend */ } Elf32_Rela; typedef struct { Elf64_Addr r_offset; /* location to apply relocation to */ Elf64_Xword r_info; /* type+section for relocation */ } Elf64_Rel; typedef struct { Elf64_Addr r_offset; /* location to apply relocation to */ Elf64_Xword r_info; /* type+section for relocation */ Elf64_Sxword r_addend; /* constant addend */ } Elf64_Rela; #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)) #define ELF64_R_SYM(I) ((I) >> 32) #define ELF64_R_TYPE(I) ((I) & 0xFFFFFFFFUL) #define ELF64_R_INFO(S,T) \ (((Elf64_Xword) (S) << 32) + ((T) & 0xFFFFFFFFUL)) /* * Symbol versioning structures. */ /* 32-bit structures. */ typedef struct { Elf32_Word vda_name; /* Index to name. */ Elf32_Word vda_next; /* Offset to next entry. */ } Elf32_Verdaux; typedef struct { Elf32_Word vna_hash; /* Hash value of dependency name. */ Elf32_Half vna_flags; /* Flags. */ Elf32_Half vna_other; /* Unused. */ Elf32_Word vna_name; /* Offset to dependency name. */ Elf32_Word vna_next; /* Offset to next vernaux entry. */ } Elf32_Vernaux; typedef struct { Elf32_Half vd_version; /* Version information. */ Elf32_Half vd_flags; /* Flags. */ Elf32_Half vd_ndx; /* Index into the versym section. */ Elf32_Half vd_cnt; /* Number of aux entries. */ Elf32_Word vd_hash; /* Hash value of name. */ Elf32_Word vd_aux; /* Offset to aux entries. */ Elf32_Word vd_next; /* Offset to next version definition. */ } Elf32_Verdef; typedef struct { Elf32_Half vn_version; /* Version number. */ Elf32_Half vn_cnt; /* Number of aux entries. */ Elf32_Word vn_file; /* Offset of associated file name. */ Elf32_Word vn_aux; /* Offset of vernaux array. */ Elf32_Word vn_next; /* Offset of next verneed entry. */ } Elf32_Verneed; typedef Elf32_Half Elf32_Versym; /* 64-bit structures. */ typedef struct { Elf64_Word vda_name; /* Index to name. */ Elf64_Word vda_next; /* Offset to next entry. */ } Elf64_Verdaux; typedef struct { Elf64_Word vna_hash; /* Hash value of dependency name. */ Elf64_Half vna_flags; /* Flags. */ Elf64_Half vna_other; /* Unused. */ Elf64_Word vna_name; /* Offset to dependency name. */ Elf64_Word vna_next; /* Offset to next vernaux entry. */ } Elf64_Vernaux; typedef struct { Elf64_Half vd_version; /* Version information. */ Elf64_Half vd_flags; /* Flags. */ Elf64_Half vd_ndx; /* Index into the versym section. */ Elf64_Half vd_cnt; /* Number of aux entries. */ Elf64_Word vd_hash; /* Hash value of name. */ Elf64_Word vd_aux; /* Offset to aux entries. */ Elf64_Word vd_next; /* Offset to next version definition. */ } Elf64_Verdef; typedef struct { Elf64_Half vn_version; /* Version number. */ Elf64_Half vn_cnt; /* Number of aux entries. */ Elf64_Word vn_file; /* Offset of associated file name. */ Elf64_Word vn_aux; /* Offset of vernaux array. */ Elf64_Word vn_next; /* Offset of next verneed entry. */ } Elf64_Verneed; typedef Elf64_Half Elf64_Versym; /* * The header for GNU-style hash sections. */ typedef struct { uint32_t gh_nbuckets; /* Number of hash buckets. */ uint32_t gh_symndx; /* First visible symbol in .dynsym. */ uint32_t gh_maskwords; /* #maskwords used in bloom filter. */ uint32_t gh_shift2; /* Bloom filter shift count. */ } Elf_GNU_Hash_Header; #endif /* _SYS_ELFDEFINITIONS_H_ */