k-tana-zero/k/elf.h

/*    $NetBSD: exec_elf.h,v 1.60 2002/01/28 22:15:54 thorpej 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the NetBSD
 *    Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 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/developer/gabi/
 *
 * Current header definitions are in:
 *    http://www.sco.com/developer/gabi/latest/ch4.eheader.html
 */

#define ELF32_MACHDEP_ENDIANNESS ELFDATA2LSB
#define ELF32_MACHDEP_ID_CASES \
case EM_386: \
case EM_486: \
break;

#define ELF32_MACHDEP_ID EM_386

#define ARCH_ELFSIZE 32        /* MD native binary size */

/* i386 relocations */
#define R_386_NONE 0
#define R_386_32 1
#define R_386_PC32 2
#define R_386_GOT32 3
#define R_386_PLT32 4
#define R_386_COPY 5
#define R_386_GLOB_DAT 6
#define R_386_JMP_SLOT 7
#define R_386_RELATIVE 8
#define R_386_GOTOFF 9
#define R_386_GOTPC 10
/* The following relocations are GNU extensions. */
#define R_386_16 20
#define R_386_PC16 21
#define R_386_8 22
#define R_386_PC8 23

#define R_TYPE(name) __CONCAT(R_386_,name)

typedef u8 Elf_Byte;

typedef u32 Elf32_Addr;
#define    ELF32_FSZ_ADDR    4
typedef u32 Elf32_Off;
#define    ELF32_FSZ_OFF    4
typedef s32 Elf32_Sword;
#define    ELF32_FSZ_SWORD    4
typedef u32 Elf32_Word;
#define    ELF32_FSZ_WORD    4
typedef u16 Elf32_Half;
#define    ELF32_FSZ_HALF    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;

/* 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 */

/* e_ident[ELFMAG0,ELFMAG3] */
#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 */
/* Unofficial OSABIs follow */
#define ELFOSABI_ARM        97    /* ARM */
#define    ELFOSABI_STANDALONE    255    /* Standalone (embedded) application */

/* 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_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 */
            /* 64-65 - Reserved */
#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_NS32K    97    /* National Semiconductor 32000 series */

/* Unofficial machine types follow */
#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;

/* 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

/* 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    /* Opersting system specific values */
#define    PF_MASKPROC    0xf0000000    /* Processor-specific values */

#define    PT_LOPROC    0x70000000    /* Processor-specific range */
#define    PT_HIPROC    0x7fffffff

#define    PT_MIPS_REGINFO    0x70000000

/*
 * 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;

/* 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_NUM        12

#define    SHT_LOOS    0x60000000    /* Operating system specific range */
#define    SHT_HIOS    0x6fffffff
#define    SHT_LOPROC    0x70000000    /* Processor-specific range */
#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_MASKOS    0x0f000000    /* Operating system specific values */
#define    SHF_MASKPROC    0xf0000000    /* Processor-specific values */

/*
 * Symbol Table
 */
typedef struct {
    Elf32_Word st_name;    /* Symbol name (.symtab 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;

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

/* 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_NUM            5

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

/* st_info utility macros */
#define    ELF32_ST_BIND(info)        ((Elf32_Word)(info) >> 4)
#define    ELF32_ST_TYPE(info)        ((Elf32_Word)(info) & 0xf)
#define    ELF32_ST_INFO(bind,type)    ((Elf_Byte)(((bind) << 4) | ((type) & 0xf)))

/*
 * 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_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))

/*
 * 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;

/* 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_HIOS        0x6fffffff
#define    DT_LOPROC    0x70000000    /* Processor-specific range */
#define    DT_HIPROC    0x7fffffff

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

/* 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_SUN_UID    2000    /* euid */
#define    AT_SUN_RUID    2001    /* ruid */
#define    AT_SUN_GID    2002    /* egid */
#define    AT_SUN_RGID    2003    /* rgid */

    /* 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;

#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 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. */
    /* Add version 2 fields below here. */
};

#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

#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_Nhdr    Elf32_Nhdr

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

#define    ELF_ST_BIND    ELF32_ST_BIND
#define    ELF_ST_TYPE    ELF32_ST_TYPE
#define    ELF_ST_INFO    ELF32_ST_INFO

#define    AuxInfo        Aux32Info

#ifdef _KERNEL

#define ELF_AUX_ENTRIES    8    /* Size of aux array passed to loader */
#define ELF32_NO_ADDR    (~(Elf32_Addr)0)    /* Indicates addr. not yet filled in */

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

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

#define    ELF_EHDR_FLAGS_OK(eh)    ELF32_EHDR_FLAGS_OK(eh)

#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

#ifndef _LKM
#include "opt_execfmt.h"
#endif

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

int coredump_elf32 __P((struct proc *, struct vnode *, struct ucred *));
int coredump_writenote_elf32 __P((struct proc *, struct vnode *,
                  struct ucred *, off_t, Elf32_Nhdr *,
                  const char *, void *));
#endif

/* common */
int exec_elf_setup_stack __P((struct proc *, struct exec_package *));

#endif                /* _KERNEL */

#endif                /* !_SYS_EXEC_ELF_H_ */