exec_elf.h

/*  $NetBSD: exec_elf.h,v 1.102 2010/03/01 11:27:29 skrll Exp $ */

/*-
 * Copyright (c) 1994 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Christos Zoulas.
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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_EXEC_ELF_H_
#define _SYS_EXEC_ELF_H_

/*
 * The current ELF ABI specification is available at:
 *  http://www.sco.com/developers/gabi/
 *
 * Current header definitions are in:
 *  http://www.sco.com/developers/gabi/latest/ch4.eheader.html
 */

#if defined(_KERNEL) || defined(_STANDALONE)
#include <sys/types.h>
#else
#include <inttypes.h>
#endif /* _KERNEL || _STANDALONE */

#if defined(ELFSIZE)
#define CONCAT(x,y) __CONCAT(x,y)
#define ELFNAME(x)  CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
#define ELFNAME2(x,y)   CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
#define ELFNAMEEND(x)   CONCAT(x,CONCAT(_elf,ELFSIZE))
#define ELFDEFNNAME(x)  CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
#endif

#if HAVE_NBTOOL_CONFIG_H
#include <nbinclude/machine/elf_machdep.h>
#else
#include <machine/elf_machdep.h>
#endif

typedef uint8_t     Elf_Byte;

typedef uint32_t    Elf32_Addr;
#define ELF32_FSZ_ADDR  4
typedef uint32_t    Elf32_Off;
typedef int32_t     Elf32_SOff;
#define ELF32_FSZ_OFF   4
typedef int32_t     Elf32_Sword;
#define ELF32_FSZ_SWORD 4
typedef uint32_t    Elf32_Word;
#define ELF32_FSZ_WORD  4
typedef uint16_t    Elf32_Half;
#define ELF32_FSZ_HALF  2
typedef uint64_t    Elf32_Lword;
#define ELF32_FSZ_LWORD 8

typedef uint64_t    Elf64_Addr;
#define ELF64_FSZ_ADDR  8
typedef uint64_t    Elf64_Off;
typedef int64_t     Elf64_SOff;
#define ELF64_FSZ_OFF   8
typedef int32_t     Elf64_Shalf;
#define ELF64_FSZ_SHALF 4

#ifndef ELF64_FSZ_SWORD
typedef int32_t     Elf64_Sword;
#define ELF64_FSZ_SWORD 4
#endif /* ELF64_FSZ_SWORD */
#ifndef ELF64_FSZ_WORD
typedef uint32_t    Elf64_Word;
#define ELF64_FSZ_WORD  4
#endif /* ELF64_FSZ_WORD */

typedef int64_t     Elf64_Sxword;
#define ELF64_FSZ_SXWORD 8
typedef uint64_t    Elf64_Xword;
#define ELF64_FSZ_XWORD 8
typedef uint64_t    Elf64_Lword;
#define ELF64_FSZ_LWORD 8
typedef uint32_t    Elf64_Half;
#define ELF64_FSZ_HALF  4
typedef uint16_t    Elf64_Quarter;
#define ELF64_FSZ_QUARTER 2

/*
 * ELF Header
 */
#define ELF_NIDENT  16

typedef struct {
    unsigned char   e_ident[ELF_NIDENT];    /* Id bytes */
    Elf32_Half  e_type;         /* file type */
    Elf32_Half  e_machine;      /* machine type */
    Elf32_Word  e_version;      /* version number */
    Elf32_Addr  e_entry;        /* entry point */
    Elf32_Off   e_phoff;        /* Program hdr offset */
    Elf32_Off   e_shoff;        /* Section hdr offset */
    Elf32_Word  e_flags;        /* Processor flags */
    Elf32_Half      e_ehsize;       /* sizeof ehdr */
    Elf32_Half      e_phentsize;        /* Program header entry size */
    Elf32_Half      e_phnum;        /* Number of program headers */
    Elf32_Half      e_shentsize;        /* Section header entry size */
    Elf32_Half      e_shnum;        /* Number of section headers */
    Elf32_Half      e_shstrndx;     /* String table index */
} Elf32_Ehdr;

typedef struct {
    unsigned char   e_ident[ELF_NIDENT];    /* Id bytes */
    Elf64_Quarter   e_type;         /* file type */
    Elf64_Quarter   e_machine;      /* machine type */
    Elf64_Half  e_version;      /* version number */
    Elf64_Addr  e_entry;        /* entry point */
    Elf64_Off   e_phoff;        /* Program hdr offset */
    Elf64_Off   e_shoff;        /* Section hdr offset */
    Elf64_Half  e_flags;        /* Processor flags */
    Elf64_Quarter   e_ehsize;       /* sizeof ehdr */
    Elf64_Quarter   e_phentsize;        /* Program header entry size */
    Elf64_Quarter   e_phnum;        /* Number of program headers */
    Elf64_Quarter   e_shentsize;        /* Section header entry size */
    Elf64_Quarter   e_shnum;        /* Number of section headers */
    Elf64_Quarter   e_shstrndx;     /* String table index */
} Elf64_Ehdr;

/* e_ident offsets */
#define EI_MAG0     0   /* '\177' */
#define EI_MAG1     1   /* 'E'    */
#define EI_MAG2     2   /* 'L'    */
#define EI_MAG3     3   /* 'F'    */
#define EI_CLASS    4   /* File class */
#define EI_DATA     5   /* Data encoding */
#define EI_VERSION  6   /* File version */
#define EI_OSABI    7   /* Operating system/ABI identification */
#define EI_ABIVERSION   8   /* ABI version */
#define EI_PAD      9   /* Start of padding bytes up to EI_NIDENT*/
#define EI_NIDENT   16  /* First non-ident header byte */

/* e_ident[EI_MAG0,EI_MAG3] */
#define ELFMAG0     0x7f
#define ELFMAG1     'E'
#define ELFMAG2     'L'
#define ELFMAG3     'F'
#define ELFMAG      "\177ELF"
#define SELFMAG     4

/* e_ident[EI_CLASS] */
#define ELFCLASSNONE    0   /* Invalid class */
#define ELFCLASS32  1   /* 32-bit objects */
#define ELFCLASS64  2   /* 64-bit objects */
#define ELFCLASSNUM 3

/* e_ident[EI_DATA] */
#define ELFDATANONE 0   /* Invalid data encoding */
#define ELFDATA2LSB 1   /* 2's complement values, LSB first */
#define ELFDATA2MSB 2   /* 2's complement values, MSB first */

/* e_ident[EI_VERSION] */
#define EV_NONE     0   /* Invalid version */
#define EV_CURRENT  1   /* Current version */
#define EV_NUM      2

/* e_ident[EI_OSABI] */
#define ELFOSABI_SYSV       0   /* UNIX System V ABI */
#define ELFOSABI_HPUX       1   /* HP-UX operating system */
#define ELFOSABI_NETBSD     2   /* NetBSD */
#define ELFOSABI_LINUX      3   /* GNU/Linux */
#define ELFOSABI_HURD       4   /* GNU/Hurd */
#define ELFOSABI_86OPEN     5   /* 86Open */
#define ELFOSABI_SOLARIS    6   /* Solaris */
#define ELFOSABI_MONTEREY   7   /* Monterey */
#define ELFOSABI_IRIX       8   /* IRIX */
#define ELFOSABI_FREEBSD    9   /* FreeBSD */
#define ELFOSABI_TRU64      10  /* TRU64 UNIX */
#define ELFOSABI_MODESTO    11  /* Novell Modesto */
#define ELFOSABI_OPENBSD    12  /* OpenBSD */
#define ELFOSABI_OPENVMS    13  /* OpenVMS */
#define ELFOSABI_NSK        14  /* HP Non-Stop Kernel */
#define ELFOSABI_AROS       15  /* Amiga Research OS */
/* Unofficial OSABIs follow */
#define ELFOSABI_ARM        97  /* ARM */
#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */

#define ELFOSABI_NONE       ELFOSABI_SYSV
#define ELFOSABI_AIX        ELFOSABI_MONTEREY

/* e_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_NUM      5

#define ET_LOOS     0xfe00  /* Operating system specific range */
#define ET_HIOS     0xfeff
#define ET_LOPROC   0xff00  /* Processor-specific range */
#define ET_HIPROC   0xffff

/* e_machine */
#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_486      6   /* Intel 80486 */
#define EM_860      7   /* Intel 80860 */
#define EM_MIPS     8   /* MIPS I Architecture */
#define EM_S370     9   /* Amdahl UTS on System/370 */
#define EM_MIPS_RS3_LE  10  /* MIPS RS3000 Little-endian */
            /* 11-14 - Reserved */
#define EM_RS6000   11  /* IBM RS/6000 XXX reserved */
#define EM_PARISC   15  /* Hewlett-Packard PA-RISC */
#define EM_NCUBE    16  /* NCube XXX reserved */
#define EM_VPP500   17  /* Fujitsu VPP500 */
#define EM_SPARC32PLUS  18  /* Enhanced instruction set SPARC */
#define EM_960      19  /* Intel 80960 */
#define EM_PPC      20  /* PowerPC */
#define EM_PPC64    21  /* 64-bit PowerPC */
            /* 22-35 - Reserved */
#define EM_S390     22  /* System/390 XXX reserved */
#define EM_V800     36  /* NEC V800 */
#define EM_FR20     37  /* Fujitsu FR20 */
#define EM_RH32     38  /* TRW RH-32 */
#define EM_RCE      39  /* Motorola RCE */
#define EM_ARM      40  /* Advanced RISC Machines ARM */
#define EM_ALPHA    41  /* DIGITAL Alpha */
#define EM_SH       42  /* Hitachi Super-H */
#define EM_SPARCV9  43  /* SPARC Version 9 */
#define EM_TRICORE  44  /* Siemens Tricore */
#define EM_ARC      45  /* Argonaut RISC Core */
#define EM_H8_300   46  /* Hitachi H8/300 */
#define EM_H8_300H  47  /* Hitachi H8/300H */
#define EM_H8S      48  /* Hitachi H8S */
#define EM_H8_500   49  /* Hitachi H8/500 */
#define EM_IA_64    50  /* Intel Merced Processor */
#define EM_MIPS_X   51  /* Stanford MIPS-X */
#define EM_COLDFIRE 52  /* Motorola Coldfire */
#define EM_68HC12   53  /* Motorola MC68HC12 */
#define EM_MMA      54  /* Fujitsu MMA Multimedia Accelerator */
#define EM_PCP      55  /* Siemens PCP */
#define EM_NCPU     56  /* Sony nCPU embedded RISC processor */
#define EM_NDR1     57  /* Denso NDR1 microprocessor */
#define EM_STARCORE 58  /* Motorola Star*Core processor */
#define EM_ME16     59  /* Toyota ME16 processor */
#define EM_ST100    60  /* STMicroelectronics ST100 processor */
#define EM_TINYJ    61  /* Advanced Logic Corp. TinyJ embedded family processor */
#define EM_X86_64   62  /* AMD x86-64 architecture */
#define EM_PDSP     63  /* Sony DSP Processor */
#define EM_PDP10    64  /* Digital Equipment Corp. PDP-10 */
#define EM_PDP11    65  /* Digital Equipment Corp. PDP-11 */
#define EM_FX66     66  /* Siemens FX66 microcontroller */
#define EM_ST9PLUS  67  /* STMicroelectronics ST9+ 8/16 bit microcontroller */
#define EM_ST7      68  /* STMicroelectronics ST7 8-bit microcontroller */
#define EM_68HC16   69  /* Motorola MC68HC16 Microcontroller */
#define EM_68HC11   70  /* Motorola MC68HC11 Microcontroller */
#define EM_68HC08   71  /* Motorola MC68HC08 Microcontroller */
#define EM_68HC05   72  /* Motorola MC68HC05 Microcontroller */
#define EM_SVX      73  /* Silicon Graphics SVx */
#define EM_ST19     74  /* STMicroelectronics ST19 8-bit CPU */
#define EM_VAX      75  /* Digital VAX */
#define EM_CRIS     76  /* Axis Communications 32-bit embedded processor */
#define EM_JAVELIN  77  /* Infineon Technologies 32-bit embedded CPU */
#define EM_FIREPATH 78  /* Element 14 64-bit DSP processor */
#define EM_ZSP      79  /* LSI Logic's 16-bit DSP processor */
#define EM_MMIX     80  /* Donald Knuth's educational 64-bit processor */
#define EM_HUANY    81  /* Harvard's machine-independent format */
#define EM_PRISM    82  /* SiTera Prism */
#define EM_AVR      83  /* Atmel AVR 8-bit microcontroller */
#define EM_FR30     84  /* Fujitsu FR30 */
#define EM_D10V     85  /* Mitsubishi D10V */
#define EM_D30V     86  /* Mitsubishi D30V */
#define EM_V850     87  /* NEC v850 */
#define EM_M32R     88  /* Mitsubishi M32R */
#define EM_MN10300  89  /* Matsushita MN10300 */
#define EM_MN10200  90  /* Matsushita MN10200 */
#define EM_PJ       91  /* picoJava */
#define EM_OPENRISC 92  /* OpenRISC 32-bit embedded processor */
#define EM_ARC_A5   93  /* ARC Cores Tangent-A5 */
#define EM_XTENSA   94  /* Tensilica Xtensa Architecture */
#define EM_VIDEOCORE    95  /* Alphamosaic VideoCore processor */
#define EM_TMM_GPP  96  /* Thompson Multimedia General Purpose Processor */
#define EM_NS32K    97  /* National Semiconductor 32000 series */
#define EM_TPC      98  /* Tenor Network TPC processor */
#define EM_SNP1K    99  /* Trebia SNP 1000 processor */
#define EM_ST200    100 /* STMicroelectronics ST200 microcontroller */
#define EM_IP2K     101 /* Ubicom IP2xxx microcontroller family */
#define EM_MAX      102 /* MAX processor */
#define EM_CR       103 /* National Semiconductor CompactRISC micorprocessor */
#define EM_F2MC16   104 /* Fujitsu F2MC16 */
#define EM_MSP430   105 /* Texas Instruments MSP430 */
#define EM_BLACKFIN 106 /* Analog Devices Blackfin DSP */
#define EM_SE_C33   107 /* Seiko Epson S1C33 family */
#define EM_SEP      108 /* Sharp embedded microprocessor */
#define EM_ARCA     109 /* Arca RISC microprocessor */
#define EM_UNICORE  110 /* UNICORE from PKU-Unity Ltd. and MPRC Peking University */
#define EM_EXCESS       111     /* eXcess: 16/32/64-bit configurable embedded CPU */
#define EM_DXP          112     /* Icera Semiconductor Inc. Deep Execution Processor */
#define EM_ALTERA_NIOS2 113     /* Altera Nios II soft-core processor */
#define EM_CRX          114     /* National Semiconductor CRX */
#define EM_XGATE        115     /* Motorola XGATE embedded processor */
#define EM_C166         116     /* Infineon C16x/XC16x processor */
#define EM_M16C         117     /* Renesas M16C series microprocessors */
#define EM_DSPIC30F     118     /* Microchip Technology dsPIC30F Digital Signal Controller */
#define EM_CE           119     /* Freescale Communication Engine RISC core */
#define EM_M32C         120     /* Renesas M32C series microprocessors */

#define EM_LATTICEMICO32 138    /* RICS processor for Lattice FPGA architecture */

#define EM_MICROBLAZE   189     /* Xilinx MicroBlaze 32-bit RISC soft processor core */

#define EM_MOXIE  0xFEED

/* Unofficial machine types follow */
#define EM_AVR32    6317    /* used by NetBSD/avr32 */
#define EM_ALPHA_EXP    36902   /* used by NetBSD/alpha; obsolete */
#define EM_NUM      36903

/*
 * Program Header
 */
typedef struct {
    Elf32_Word  p_type;     /* entry type */
    Elf32_Off   p_offset;   /* offset */
    Elf32_Addr  p_vaddr;    /* virtual address */
    Elf32_Addr  p_paddr;    /* physical address */
    Elf32_Word  p_filesz;   /* file size */
    Elf32_Word  p_memsz;    /* memory size */
    Elf32_Word  p_flags;    /* flags */
    Elf32_Word  p_align;    /* memory & file alignment */
} Elf32_Phdr;

typedef struct {
    Elf64_Half  p_type;     /* entry type */
    Elf64_Half  p_flags;    /* flags */
    Elf64_Off   p_offset;   /* offset */
    Elf64_Addr  p_vaddr;    /* virtual address */
    Elf64_Addr  p_paddr;    /* physical address */
    Elf64_Xword p_filesz;   /* file size */
    Elf64_Xword p_memsz;    /* memory size */
    Elf64_Xword p_align;    /* memory & file alignment */
} Elf64_Phdr;

/* p_type */
#define PT_NULL     0       /* Program header table entry unused */
#define PT_LOAD     1       /* Loadable program segment */
#define PT_DYNAMIC  2       /* Dynamic linking information */
#define PT_INTERP   3       /* Program interpreter */
#define PT_NOTE     4       /* Auxiliary information */
#define PT_SHLIB    5       /* Reserved, unspecified semantics */
#define PT_PHDR     6       /* Entry for header table itself */
#define PT_NUM      7

#define PT_LOOS         0x60000000  /* OS-specific range */
#define PT_HIOS         0x6fffffff
#define PT_LOPROC   0x70000000  /* Processor-specific range */
#define PT_HIPROC   0x7fffffff

#define PT_MIPS_REGINFO 0x70000000

/* p_flags */
#define PF_R        0x4 /* Segment is readable */
#define PF_W        0x2 /* Segment is writable */
#define PF_X        0x1 /* Segment is executable */

#define PF_MASKOS   0x0ff00000  /* Operating system specific values */
#define PF_MASKPROC 0xf0000000  /* Processor-specific values */

/* Extended program header index. */
#define PN_XNUM     0xffff

/*
 * Section Headers
 */
typedef struct {
    Elf32_Word  sh_name;    /* section name (.shstrtab index) */
    Elf32_Word  sh_type;    /* section type */
    Elf32_Word  sh_flags;   /* section flags */
    Elf32_Addr  sh_addr;    /* virtual address */
    Elf32_Off   sh_offset;  /* file offset */
    Elf32_Word  sh_size;    /* section size */
    Elf32_Word  sh_link;    /* link to another */
    Elf32_Word  sh_info;    /* misc info */
    Elf32_Word  sh_addralign;   /* memory alignment */
    Elf32_Word  sh_entsize; /* table entry size */
} Elf32_Shdr;

typedef struct {
    Elf64_Half  sh_name;    /* section name (.shstrtab index) */
    Elf64_Half  sh_type;    /* section type */
    Elf64_Xword sh_flags;   /* section flags */
    Elf64_Addr  sh_addr;    /* virtual address */
    Elf64_Off   sh_offset;  /* file offset */
    Elf64_Xword sh_size;    /* section size */
    Elf64_Half  sh_link;    /* link to another */
    Elf64_Half  sh_info;    /* misc info */
    Elf64_Xword sh_addralign;   /* memory alignment */
    Elf64_Xword sh_entsize; /* table entry size */
} Elf64_Shdr;

/* sh_type */
#define SHT_NULL    0       /* Section header table entry unused */
#define SHT_PROGBITS    1       /* Program information */
#define SHT_SYMTAB  2       /* Symbol table */
#define SHT_STRTAB  3       /* String table */
#define SHT_RELA    4       /* Relocation information w/ addend */
#define SHT_HASH    5       /* Symbol hash table */
#define SHT_DYNAMIC 6       /* Dynamic linking information */
#define SHT_NOTE    7       /* Auxiliary information */
#define SHT_NOBITS  8       /* No space allocated in file image */
#define SHT_REL     9       /* Relocation information w/o addend */
#define SHT_SHLIB   10      /* Reserved, unspecified semantics */
#define SHT_DYNSYM  11      /* Symbol table for dynamic linker */
#define SHT_INIT_ARRAY  14      /* Initialization function pointers */
#define SHT_FINI_ARRAY  15      /* Termination function pointers */
#define SHT_PREINIT_ARRAY 16        /* Pre-initialization function ptrs */
#define SHT_GROUP   17      /* Section group */
#define SHT_SYMTAB_SHNDX 18     /* Section indexes (see SHN_XINDEX) */
#define SHT_NUM     19

#define SHT_LOOS    0x60000000  /* Operating system specific range */
#define SHT_SUNW_move   0x6ffffffa
#define SHT_SUNW_syminfo 0x6ffffffc
#define SHT_SUNW_verdef 0x6ffffffd  /* Versions defined by file */
#define SHT_GNU_verdef  SHT_SUNW_verdef
#define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */
#define SHT_GNU_verneed SHT_SUNW_verneed
#define SHT_SUNW_versym 0x6fffffff  /* Symbol versions */
#define SHT_GNU_versym  SHT_SUNW_versym
#define SHT_HIOS    0x6fffffff
#define SHT_LOPROC  0x70000000  /* Processor-specific range */
#define SHT_AMD64_UNWIND 0x70000001 /* unwind information */
#define SHT_HIPROC  0x7fffffff
#define SHT_LOUSER  0x80000000  /* Application-specific range */
#define SHT_HIUSER  0xffffffff

/* sh_flags */
#define SHF_WRITE   0x1     /* Section contains writable data */
#define SHF_ALLOC   0x2     /* Section occupies memory */
#define SHF_EXECINSTR   0x4     /* Section contains executable insns */
#define SHF_MERGE   0x10        /* Section contains data that can be merged */
#define SHF_STRINGS 0x20        /* Section contains null-terminated strings */
#define SHF_INFO_LINK   0x40        /* Section header's sh_info holds table index */
#define SHF_LINK_ORDER  0x80        /* Section has special ordering requirements */

#define SHF_MASKOS  0x0f000000  /* Operating system specific values */
#define SHF_MASKPROC    0xf0000000  /* Processor-specific values */

/*
 * Symbol Table
 */
typedef struct {
    Elf32_Word  st_name;    /* Symbol name (.strtab index) */
    Elf32_Word  st_value;   /* value of symbol */
    Elf32_Word  st_size;    /* size of symbol */
    Elf_Byte    st_info;    /* type / binding attrs */
    Elf_Byte    st_other;   /* unused */
    Elf32_Half  st_shndx;   /* section index of symbol */
} Elf32_Sym;

typedef struct {
    Elf64_Half  st_name;    /* Symbol name (.strtab index) */
    Elf_Byte    st_info;    /* type / binding attrs */
    Elf_Byte    st_other;   /* unused */
    Elf64_Quarter   st_shndx;   /* section index of symbol */
    Elf64_Addr  st_value;   /* value of symbol */
    Elf64_Xword st_size;    /* size of symbol */
} Elf64_Sym;

/* Symbol Table index of the undefined symbol */
#define ELF_SYM_UNDEFINED   0

#define STN_UNDEF       0   /* undefined index */

/* st_info: Symbol Bindings */
#define STB_LOCAL       0   /* local symbol */
#define STB_GLOBAL      1   /* global symbol */
#define STB_WEAK        2   /* weakly defined global symbol */
#define STB_NUM         3

#define STB_LOOS        10  /* Operating system specific range */
#define STB_HIOS        12
#define STB_LOPROC      13  /* Processor-specific range */
#define STB_HIPROC      15

/* st_info: Symbol Types */
#define STT_NOTYPE      0   /* Type not specified */
#define STT_OBJECT      1   /* Associated with a data object */
#define STT_FUNC        2   /* Associated with a function */
#define STT_SECTION     3   /* Associated with a section */
#define STT_FILE        4   /* Associated with a file name */
#define STT_COMMON      5   /* Uninitialised common block */
#define STT_TLS         6   /* Thread local data object */
#define STT_NUM         7

#define STT_LOOS        10  /* Operating system specific range */
#define STT_HIOS        12
#define STT_LOPROC      13  /* Processor-specific range */
#define STT_HIPROC      15

/* st_other: Visibility Types */
#define STV_DEFAULT     0   /* use binding type */
#define STV_INTERNAL        1   /* not referenced from outside */
#define STV_HIDDEN      2   /* not visible, may be used via ptr */
#define STV_PROTECTED       3   /* visible, not preemptible */
#define STV_EXPORTED        4
#define STV_SINGLETON       5
#define STV_ELIMINATE       6

/* st_info/st_other utility macros */
#define ELF_ST_BIND(info)       ((uint32_t)(info) >> 4)
#define ELF_ST_TYPE(info)       ((uint32_t)(info) & 0xf)
#define ELF_ST_INFO(bind,type)      ((Elf_Byte)(((bind) << 4) | \
                     ((type) & 0xf)))
#define ELF_ST_VISIBILITY(other)    ((uint32_t)(other) & 3)

/*
 * Special section indexes
 */
#define SHN_UNDEF   0       /* Undefined section */

#define SHN_LORESERVE   0xff00      /* Reserved range */
#define SHN_ABS     0xfff1      /*  Absolute symbols */
#define SHN_COMMON  0xfff2      /*  Common symbols */
#define SHN_XINDEX  0xffff      /* Escape -- index stored elsewhere */
#define SHN_HIRESERVE   0xffff

#define SHN_LOPROC  0xff00      /* Processor-specific range */
#define SHN_HIPROC  0xff1f
#define SHN_LOOS    0xff20      /* Operating system specific range */
#define SHN_HIOS    0xff3f

#define SHN_MIPS_ACOMMON 0xff00
#define SHN_MIPS_TEXT   0xff01
#define SHN_MIPS_DATA   0xff02
#define SHN_MIPS_SCOMMON 0xff03

/*
 * Relocation Entries
 */
typedef struct {
    Elf32_Word  r_offset;   /* where to do it */
    Elf32_Word  r_info;     /* index & type of relocation */
} Elf32_Rel;

typedef struct {
    Elf32_Word  r_offset;   /* where to do it */
    Elf32_Word  r_info;     /* index & type of relocation */
    Elf32_Sword r_addend;   /* adjustment value */
} Elf32_Rela;

/* r_info utility macros */
#define ELF32_R_SYM(info)   ((info) >> 8)
#define ELF32_R_TYPE(info)  ((info) & 0xff)
#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))

typedef struct {
    Elf64_Addr  r_offset;   /* where to do it */
    Elf64_Xword r_info;     /* index & type of relocation */
} Elf64_Rel;

typedef struct {
    Elf64_Addr  r_offset;   /* where to do it */
    Elf64_Xword r_info;     /* index & type of relocation */
    Elf64_Sxword    r_addend;   /* adjustment value */
} Elf64_Rela;

/* r_info utility macros */
#define ELF64_R_SYM(info)   ((info) >> 32)
#define ELF64_R_TYPE(info)  ((info) & 0xffffffff)
#define ELF64_R_INFO(sym,type)  (((sym) << 32) + (type))

/*
 * Move entries
 */
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;

#define ELF32_M_SYM(info)   ((info) >> 8)
#define ELF32_M_SIZE(info)  (info) & 0xff)
#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size))

typedef struct {
    Elf64_Lword m_value;    /* symbol value */
    Elf64_Xword m_info;     /* size + index */
    Elf64_Xword m_poffset;  /* symbol offset */
    Elf64_Half  m_repeat;   /* repeat count */
    Elf64_Half  m_stride;   /* stride info */
} Elf64_Move;

#define ELF64_M_SYM(info)   ((info) >> 8)
#define ELF64_M_SIZE(info)  (info) & 0xff)
#define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size))

/*
 * Hardware/software capabilities entry
 */
typedef struct {
    Elf32_Word  c_tag;      /* entry tag value */
    union {
        Elf32_Addr  c_ptr;
        Elf32_Word  c_val;
    } c_un;
} Elf32_Cap;

typedef struct {
    Elf64_Xword c_tag;      /* entry tag value */
    union {
        Elf64_Addr  c_ptr;
        Elf64_Xword c_val;
    } c_un;
} Elf64_Cap;

/*
 * Dynamic Section structure array
 */
typedef struct {
    Elf32_Word  d_tag;      /* entry tag value */
    union {
        Elf32_Addr  d_ptr;
        Elf32_Word  d_val;
    } d_un;
} Elf32_Dyn;

typedef struct {
    Elf64_Xword d_tag;      /* entry tag value */
    union {
        Elf64_Addr  d_ptr;
        Elf64_Xword d_val;
    } d_un;
} Elf64_Dyn;

/* d_tag */
#define DT_NULL     0   /* Marks end of dynamic array */
#define DT_NEEDED   1   /* Name of needed library (DT_STRTAB offset) */
#define DT_PLTRELSZ 2   /* Size, in bytes, of relocations in PLT */
#define DT_PLTGOT   3   /* Address of PLT and/or GOT */
#define DT_HASH     4   /* Address of symbol hash table */
#define DT_STRTAB   5   /* Address of string table */
#define DT_SYMTAB   6   /* Address of symbol table */
#define DT_RELA     7   /* Address of Rela relocation table */
#define DT_RELASZ   8   /* Size, in bytes, of DT_RELA table */
#define DT_RELAENT  9   /* Size, in bytes, of one DT_RELA entry */
#define DT_STRSZ    10  /* Size, in bytes, of DT_STRTAB table */
#define DT_SYMENT   11  /* Size, in bytes, of one DT_SYMTAB entry */
#define DT_INIT     12  /* Address of initialization function */
#define DT_FINI     13  /* Address of termination function */
#define DT_SONAME   14  /* Shared object name (DT_STRTAB offset) */
#define DT_RPATH    15  /* Library search path (DT_STRTAB offset) */
#define DT_SYMBOLIC 16  /* Start symbol search within local object */
#define DT_REL      17  /* Address of Rel relocation table */
#define DT_RELSZ    18  /* Size, in bytes, of DT_REL table */
#define DT_RELENT   19  /* Size, in bytes, of one DT_REL entry */
#define DT_PLTREL   20  /* Type of PLT relocation entries */
#define DT_DEBUG    21  /* Used for debugging; unspecified */
#define DT_TEXTREL  22  /* Relocations might modify non-writable seg */
#define DT_JMPREL   23  /* Address of relocations associated with PLT */
#define DT_BIND_NOW 24  /* Process all relocations at load-time */
#define DT_INIT_ARRAY   25  /* Address of initialization function array */
#define DT_FINI_ARRAY   26  /* Size, in bytes, of DT_INIT_ARRAY array */
#define DT_INIT_ARRAYSZ 27  /* Address of termination function array */
#define DT_FINI_ARRAYSZ 28  /* Size, in bytes, of DT_FINI_ARRAY array*/
#define DT_NUM      29

#define DT_LOOS     0x60000000  /* Operating system specific range */
#define DT_VERSYM   0x6ffffff0  /* Symbol versions */
#define DT_FLAGS_1  0x6ffffffb  /* ELF dynamic flags */
#define DT_VERDEF   0x6ffffffc  /* Versions defined by file */
#define DT_VERDEFNUM    0x6ffffffd  /* Number of versions defined by file */
#define DT_VERNEED  0x6ffffffe  /* Versions needed by file */
#define DT_VERNEEDNUM   0x6fffffff  /* Number of versions needed by file */
#define DT_HIOS     0x6fffffff
#define DT_LOPROC   0x70000000  /* Processor-specific range */
#define DT_HIPROC   0x7fffffff

/* Flag values for DT_FLAGS_1 (incomplete) */
#define DF_1_INITFIRST  0x00000020  /* Object's init/fini take priority */

/*
 * Auxiliary Vectors
 */
typedef struct {
    Elf32_Word  a_type;             /* 32-bit id */
    Elf32_Word  a_v;                /* 32-bit id */
} Aux32Info;

typedef struct {
    Elf64_Half  a_type;             /* 32-bit id */
    Elf64_Xword a_v;                /* 64-bit id */
} Aux64Info;

/* a_type */
#define AT_NULL     0   /* Marks end of array */
#define AT_IGNORE   1   /* No meaning, a_un is undefined */
#define AT_EXECFD   2   /* Open file descriptor of object file */
#define AT_PHDR     3   /* &phdr[0] */
#define AT_PHENT    4   /* sizeof(phdr[0]) */
#define AT_PHNUM    5   /* # phdr entries */
#define AT_PAGESZ   6   /* PAGESIZE */
#define AT_BASE     7   /* Interpreter base addr */
#define AT_FLAGS    8   /* Processor flags */
#define AT_ENTRY    9   /* Entry address of executable */
#define AT_DCACHEBSIZE  10  /* Data cache block size */
#define AT_ICACHEBSIZE  11  /* Instruction cache block size */
#define AT_UCACHEBSIZE  12  /* Unified cache block size */

    /* Vendor specific */
#define AT_MIPS_NOTELF  10  /* XXX a_val != 0 -> MIPS XCOFF executable */

#define AT_EUID     2000    /* euid (solaris compatible numbers) */
#define AT_RUID     2001    /* ruid (solaris compatible numbers) */
#define AT_EGID     2002    /* egid (solaris compatible numbers) */
#define AT_RGID     2003    /* rgid (solaris compatible numbers) */

    /* Solaris kernel specific */
#define AT_SUN_LDELF    2004    /* dynamic linker's ELF header */
#define AT_SUN_LDSHDR   2005    /* dynamic linker's section header */
#define AT_SUN_LDNAME   2006    /* dynamic linker's name */
#define AT_SUN_LPGSIZE  2007    /* large pagesize */

    /* Other information */
#define AT_SUN_PLATFORM 2008    /* sysinfo(SI_PLATFORM) */
#define AT_SUN_HWCAP    2009    /* process hardware capabilities */
#define AT_SUN_IFLUSH   2010    /* do we need to flush the instruction cache? */
#define AT_SUN_CPU  2011    /* CPU name */
    /* ibcs2 emulation band aid */
#define AT_SUN_EMUL_ENTRY 2012  /* coff entry point */
#define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */
    /* Executable's fully resolved name */
#define AT_SUN_EXECNAME 2014

/*
 * Note Headers
 */
typedef struct {
    Elf32_Word n_namesz;
    Elf32_Word n_descsz;
    Elf32_Word n_type;
} Elf32_Nhdr;

typedef struct {
    Elf64_Half n_namesz;
    Elf64_Half n_descsz;
    Elf64_Half n_type;
} Elf64_Nhdr;

#define ELF_NOTE_TYPE_ABI_TAG       1

/* GNU-specific note name and description sizes */
#define ELF_NOTE_ABI_NAMESZ     4
#define ELF_NOTE_ABI_DESCSZ     16
/* GNU-specific note name */
#define ELF_NOTE_ABI_NAME       "GNU\0"

/* GNU-specific OS/version value stuff */
#define ELF_NOTE_ABI_OS_LINUX       0
#define ELF_NOTE_ABI_OS_HURD        1
#define ELF_NOTE_ABI_OS_SOLARIS     2

/* NetBSD-specific note type: Emulation name.  desc is emul name string. */
#define ELF_NOTE_TYPE_NETBSD_TAG    1
/* NetBSD-specific note name and description sizes */
#define ELF_NOTE_NETBSD_NAMESZ      7
#define ELF_NOTE_NETBSD_DESCSZ      4
/* NetBSD-specific note name */
#define ELF_NOTE_NETBSD_NAME        "NetBSD\0\0"

/* NetBSD-specific note type: Checksum.  There should be 1 NOTE per PT_LOAD
   section.  desc is a tuple of <phnum>(16),<chk-type>(16),<chk-value>. */
#define ELF_NOTE_TYPE_CHECKSUM_TAG  2
#define ELF_NOTE_CHECKSUM_CRC32     1
#define ELF_NOTE_CHECKSUM_MD5       2
#define ELF_NOTE_CHECKSUM_SHA1      3
#define ELF_NOTE_CHECKSUM_SHA256    4

/* NetBSD-specific note type: PaX.  There should be 1 NOTE per executable.
   section.  desc is a 32 bit bitmask */
#define ELF_NOTE_TYPE_PAX_TAG       3
#define ELF_NOTE_PAX_MPROTECT       0x01    /* Force enable Mprotect */
#define ELF_NOTE_PAX_NOMPROTECT     0x02    /* Force disable Mprotect */
#define ELF_NOTE_PAX_GUARD      0x04    /* Force enable Segvguard */
#define ELF_NOTE_PAX_NOGUARD        0x08    /* Force disable Servguard */
#define ELF_NOTE_PAX_ASLR       0x10    /* Force enable ASLR */
#define ELF_NOTE_PAX_NOASLR     0x20    /* Force disable ASLR */
#define ELF_NOTE_PAX_NAMESZ     4
#define ELF_NOTE_PAX_NAME       "PaX\0"
#define ELF_NOTE_PAX_DESCSZ     4

/*
 * NetBSD-specific core file information.
 *
 * NetBSD ELF core files use notes to provide information about
 * the process's state.  The note name is "NetBSD-CORE" for
 * information that is global to the process, and "NetBSD-CORE@nn",
 * where "nn" is the lwpid of the LWP that the information belongs
 * to (such as register state).
 *
 * We use the following note identifiers:
 *
 *  ELF_NOTE_NETBSD_CORE_PROCINFO
 *      Note is a "netbsd_elfcore_procinfo" structure.
 *
 * We also use ptrace(2) request numbers (the ones that exist in
 * machine-dependent space) to identify register info notes.  The
 * info in such notes is in the same format that ptrace(2) would
 * export that information.
 *
 * Please try to keep the members of this structure nicely aligned,
 * and if you add elements, add them to the end and bump the version.
 */

#define ELF_NOTE_NETBSD_CORE_NAME   "NetBSD-CORE"

#define ELF_NOTE_NETBSD_CORE_PROCINFO   1

#define NETBSD_ELFCORE_PROCINFO_VERSION 1

struct netbsd_elfcore_procinfo {
    /* Version 1 fields start here. */
    uint32_t    cpi_version;    /* netbsd_elfcore_procinfo version */
    uint32_t    cpi_cpisize;    /* sizeof(netbsd_elfcore_procinfo) */
    uint32_t    cpi_signo;  /* killing signal */
    uint32_t    cpi_sigcode;    /* signal code */
    uint32_t    cpi_sigpend[4]; /* pending signals */
    uint32_t    cpi_sigmask[4]; /* blocked signals */
    uint32_t    cpi_sigignore[4];/* blocked signals */
    uint32_t    cpi_sigcatch[4];/* blocked signals */
    int32_t     cpi_pid;    /* process ID */
    int32_t     cpi_ppid;   /* parent process ID */
    int32_t     cpi_pgrp;   /* process group ID */
    int32_t     cpi_sid;    /* session ID */
    uint32_t    cpi_ruid;   /* real user ID */
    uint32_t    cpi_euid;   /* effective user ID */
    uint32_t    cpi_svuid;  /* saved user ID */
    uint32_t    cpi_rgid;   /* real group ID */
    uint32_t    cpi_egid;   /* effective group ID */
    uint32_t    cpi_svgid;  /* saved group ID */
    uint32_t    cpi_nlwps;  /* number of LWPs */
    int8_t      cpi_name[32];   /* copy of p->p_comm */
    /* Add version 2 fields below here. */
    int32_t     cpi_siglwp; /* LWP target of killing signal */
};

#if defined(ELFSIZE) && (ELFSIZE == 32)
#define Elf_Ehdr    Elf32_Ehdr
#define Elf_Phdr    Elf32_Phdr
#define Elf_Shdr    Elf32_Shdr
#define Elf_Sym     Elf32_Sym
#define Elf_Rel     Elf32_Rel
#define Elf_Rela    Elf32_Rela
#define Elf_Dyn     Elf32_Dyn
#define Elf_Word    Elf32_Word
#define Elf_Sword   Elf32_Sword
#define Elf_Addr    Elf32_Addr
#define Elf_Off     Elf32_Off
#define Elf_SOff    Elf32_SOff
#define Elf_Nhdr    Elf32_Nhdr

#define ELF_R_SYM   ELF32_R_SYM
#define ELF_R_TYPE  ELF32_R_TYPE
#define ELFCLASS    ELFCLASS32

#define AuxInfo     Aux32Info
#elif defined(ELFSIZE) && (ELFSIZE == 64)
#define Elf_Ehdr    Elf64_Ehdr
#define Elf_Phdr    Elf64_Phdr
#define Elf_Shdr    Elf64_Shdr
#define Elf_Sym     Elf64_Sym
#define Elf_Rel     Elf64_Rel
#define Elf_Rela    Elf64_Rela
#define Elf_Dyn     Elf64_Dyn
#define Elf_Word    Elf64_Word
#define Elf_Sword   Elf64_Sword
#define Elf_Addr    Elf64_Addr
#define Elf_Off     Elf64_Off
#define Elf_SOff    Elf64_SOff
#define Elf_Nhdr    Elf64_Nhdr

#define ELF_R_SYM   ELF64_R_SYM
#define ELF_R_TYPE  ELF64_R_TYPE
#define ELFCLASS    ELFCLASS64

#define AuxInfo     Aux64Info
#endif

#define ELF32_ST_BIND(info)     ELF_ST_BIND(info)
#define ELF32_ST_TYPE(info)     ELF_ST_TYPE(info)
#define ELF32_ST_INFO(bind,type)    ELF_ST_INFO(bind,type)
#define ELF32_ST_VISIBILITY(other)  ELF_ST_VISIBILITY(other)

#define ELF64_ST_BIND(info)     ELF_ST_BIND(info)
#define ELF64_ST_TYPE(info)     ELF_ST_TYPE(info)
#define ELF64_ST_INFO(bind,type)    ELF_ST_INFO(bind,type)
#define ELF64_ST_VISIBILITY(other)  ELF_ST_VISIBILITY(other)

typedef struct {
    Elf32_Half  si_boundto; /* direct bindings - symbol bound to */
    Elf32_Half  si_flags;   /* per symbol flags */
} Elf32_Syminfo;

typedef struct {
    Elf64_Half  si_boundto; /* direct bindings - symbol bound to */
    Elf64_Half  si_flags;   /* per symbol flags */
} Elf64_Syminfo;

#define SYMINFO_FLG_DIRECT  0x0001  /* symbol ref has direct association
                       to object containing definition */
#define SYMINFO_FLG_PASSTHRU    0x0002  /* ignored - see SYMINFO_FLG_FILTER */
#define SYMINFO_FLG_COPY    0x0004  /* symbol is a copy-reloc */
#define SYMINFO_FLG_LAZYLOAD    0x0008  /* object containing defn should be
                       lazily-loaded */
#define SYMINFO_FLG_DIRECTBIND  0x0010  /* ref should be bound directly to
                       object containing definition */
#define SYMINFO_FLG_NOEXTDIRECT 0x0020  /* don't let an external reference
                       directly bind to this symbol */
#define SYMINFO_FLG_FILTER  0x0002  /* symbol ref is associated to a */
#define SYMINFO_FLG_AUXILIARY   0x0040  /*      standard or auxiliary filter */

#define SYMINFO_BT_SELF     0xffff  /* symbol bound to self */
#define SYMINFO_BT_PARENT   0xfffe  /* symbol bound to parent */
#define SYMINFO_BT_NONE     0xfffd  /* no special symbol binding */
#define SYMINFO_BT_EXTERN   0xfffc  /* symbol defined as external */
#define SYMINFO_BT_LOWRESERVE   0xff00  /* beginning of reserved entries */

#define SYMINFO_NONE        0   /* Syminfo version */
#define SYMINFO_CURRENT     1
#define SYMINFO_NUM     2

/*
 * These constants are used for Elf32_Verdef struct's version number.
 */
#define VER_DEF_NONE        0
#define VER_DEF_CURRENT     1

/*
 * These constants are used for Elf32_Verdef struct's vd_flags.
 */
#define VER_FLG_BASE        0x1
#define VER_FLG_WEAK        0x2

/*
 * These are used in an Elf32_Versym field.
 */
#define VER_NDX_LOCAL       0
#define VER_NDX_GLOBAL      1

/*
 * These constants are used for Elf32_Verneed struct's version number.
 */
#define VER_NEED_NONE       0
#define VER_NEED_CURRENT    1

/*
 * GNU Extension hidding symb
 */
#define VERSYM_HIDDEN       0x8000
#define VERSYM_VERSION      0x7fff

#define ELF_VER_CHR     '@'

/*
 * These are current size independent.
 */

typedef struct {
    Elf32_Half  vd_version; /* version number of structure */
    Elf32_Half  vd_flags;   /* flags (VER_FLG_*) */
    Elf32_Half  vd_ndx;     /* version index */
    Elf32_Half  vd_cnt;     /* number of verdaux entries */
    Elf32_Word  vd_hash;    /* hash of name */
    Elf32_Word  vd_aux;     /* offset to verdaux entries */
    Elf32_Word  vd_next;    /* offset to next verdef */
} Elf32_Verdef;
typedef Elf32_Verdef    Elf64_Verdef;

typedef struct {
    Elf32_Word  vda_name;   /* string table offset of name */
    Elf32_Word  vda_next;   /* offset to verdaux */
} Elf32_Verdaux;
typedef Elf32_Verdaux   Elf64_Verdaux;

typedef struct {
    Elf32_Half  vn_version; /* version number of structure */
    Elf32_Half  vn_cnt;     /* number of vernaux entries */
    Elf32_Word  vn_file;    /* string table offset of library name*/
    Elf32_Word  vn_aux;     /* offset to vernaux entries */
    Elf32_Word  vn_next;    /* offset to next verneed */
} Elf32_Verneed;
typedef Elf32_Verneed   Elf64_Verneed;

typedef struct {
    Elf32_Word  vna_hash;   /* Hash of dependency name */
    Elf32_Half  vna_flags;  /* flags (VER_FLG_*) */
    Elf32_Half  vna_other;  /* unused */
    Elf32_Word  vna_name;   /* string table offset to version name*/
    Elf32_Word  vna_next;   /* offset to next vernaux */
} Elf32_Vernaux;
typedef Elf32_Vernaux   Elf64_Vernaux;

typedef struct {
    Elf32_Half  vs_vers;
} Elf32_Versym;
typedef Elf32_Versym    Elf64_Versym;

#ifdef _KERNEL

#define ELF_AUX_ENTRIES 14  /* Max size of aux array passed to loader */
#define ELF32_NO_ADDR   (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */
#define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */
#define ELF64_NO_ADDR   (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */
#define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */

#if defined(ELFSIZE) && (ELFSIZE == 64)
#define ELF_NO_ADDR ELF64_NO_ADDR
#define ELF_LINK_ADDR   ELF64_LINK_ADDR
#elif defined(ELFSIZE) && (ELFSIZE == 32)
#define ELF_NO_ADDR ELF32_NO_ADDR
#define ELF_LINK_ADDR   ELF32_LINK_ADDR
#endif

#ifndef ELF32_EHDR_FLAGS_OK
#define ELF32_EHDR_FLAGS_OK(eh) 1
#endif

#ifndef ELF64_EHDR_FLAGS_OK
#define ELF64_EHDR_FLAGS_OK(eh) 1
#endif

#if defined(ELFSIZE) && (ELFSIZE == 64)
#define ELF_EHDR_FLAGS_OK(eh)   ELF64_EHDR_FLAGS_OK(eh)
#else
#define ELF_EHDR_FLAGS_OK(eh)   ELF32_EHDR_FLAGS_OK(eh)
#endif

#if defined(ELFSIZE)
struct elf_args {
        Elf_Addr  arg_entry;      /* program entry point */
        Elf_Addr  arg_interp;     /* Interpreter load address */
        Elf_Addr  arg_phaddr;     /* program header address */
        Elf_Addr  arg_phentsize;  /* Size of program header */
        Elf_Addr  arg_phnum;      /* Number of program headers */
};
#endif

#ifdef _KERNEL_OPT
#include "opt_execfmt.h"
#endif

#ifdef EXEC_ELF32
int exec_elf32_makecmds(struct lwp *, struct exec_package *);
int elf32_copyargs(struct lwp *, struct exec_package *,
            struct ps_strings *, char **, void *);

int coredump_elf32(struct lwp *, void *);
int coredump_writenote_elf32(struct proc *, void *, Elf32_Nhdr *,
        const char *, void *);

int elf32_check_header(Elf32_Ehdr *, int);
#endif

#ifdef EXEC_ELF64
int exec_elf64_makecmds(struct lwp *, struct exec_package *);
int elf64_copyargs(struct lwp *, struct exec_package *,
        struct ps_strings *, char **, void *);

int coredump_elf64(struct lwp *, void *);
int coredump_writenote_elf64(struct proc *, void *, Elf64_Nhdr *,
        const char *, void *);

int elf64_check_header(Elf64_Ehdr *, int);
#endif

#endif /* _KERNEL */

#endif /* !_SYS_EXEC_ELF_H_ */