elf_abi.h

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/*
 * Copyright (c) 1995, 1996, 2001, 2002
 * Erik Theisen.  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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
 */

/* This is the ELF ABI header file formerly known as "elf_abi.h". */

#ifndef _ELF_ABI_H
#define _ELF_ABI_H

#include <stdint.h>

#include <gctypes.h>

/*  This version doesn't work for 64-bit ABIs - Erik. */

/* These typedefs need to be handled better. */

typedef uint32_t    Elf32_Addr;       /* Unsigned program address */
typedef uint32_t    Elf32_Off;        /* Unsigned file offset */
typedef int32_t Elf32_Sword;      /* Signed large integer */
typedef uint32_t    Elf32_Word;       /* Unsigned large integer */
typedef uint16_t    Elf32_Half;       /* Unsigned medium integer */

/* e_ident[] identification indexes */

#define EI_MAG0         0           /* file ID */
#define EI_MAG1         1           /* file ID */
#define EI_MAG2         2           /* file ID */
#define EI_MAG3         3           /* file ID */
#define EI_CLASS        4           /* file class */
#define EI_DATA         5           /* data encoding */
#define EI_VERSION      6           /* ELF header version */
#define EI_OSABI        7           /* OS/ABI specific ELF extensions */
#define EI_ABIVERSION   8           /* ABI target version */
#define EI_PAD          9           /* start of pad bytes */
#define EI_NIDENT       16          /* Size of e_ident[] */

/* e_ident[] magic number */

#define ELFMAG0        0x7f        /* e_ident[EI_MAG0] */
#define ELFMAG1        'E'         /* e_ident[EI_MAG1] */
#define ELFMAG2        'L'         /* e_ident[EI_MAG2] */
#define ELFMAG3        'F'         /* e_ident[EI_MAG3] */
#define ELFMAG         "\177ELF"   /* magic */
#define SELFMAG        4           /* size of magic */

/* e_ident[] file class */

#define ELFCLASSNONE   0              /* invalid */
#define ELFCLASS32     1              /* 32-bit objs */
#define ELFCLASS64     2              /* 64-bit objs */
#define ELFCLASSNUM    3           /* number of classes */

/* e_ident[] data encoding */
#define ELFDATANONE     0           /* invalid */
#define ELFDATA2LSB     1           /* Little-Endian */
#define ELFDATA2MSB     2           /* Big-Endian */
#define ELFDATANUM      3           /* number of data encode defines */

/* e_ident[] OS/ABI specific ELF extensions */

#define ELFOSABI_NONE      0        /* No extension specified */
#define ELFOSABI_HPUX       1        /* Hewlett-Packard HP-UX */
#define ELFOSABI_NETBSD     2        /* NetBSD */
#define ELFOSABI_LINUX      3        /* Linux */
#define ELFOSABI_SOLARIS    6        /* Sun Solaris */
#define ELFOSABI_AIX       7        /* AIX */
#define ELFOSABI_IRIX       8        /* IRIX */
#define ELFOSABI_FREEBSD    9        /* FreeBSD */
#define ELFOSABI_TRU64      10       /* Compaq TRU64 UNIX */
#define ELFOSABI_MODESTO    11       /* Novell Modesto */
#define ELFOSABI_OPENBSD    12       /* OpenBSD */

/* 64-255 Architecture-specific value range */

/* e_ident[] ABI Version */

#define ELFABIVERSION       0

/* e_ident */

#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
                      (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
                      (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
                      (ehdr).e_ident[EI_MAG3] == ELFMAG3)

/* ELF Header */
typedef struct elfhdr
{
   unsigned char    e_ident[EI_NIDENT];     /* ELF Identification */
   Elf32_Half   e_type;                    /* object file type */
   Elf32_Half   e_machine;                 /* machine */
   Elf32_Word   e_version;                 /* object file version */
   Elf32_Addr   e_entry;                   /* virtual entry point */
   Elf32_Off    e_phoff;                   /* program header table offset */
   Elf32_Off    e_shoff;                   /* section header table offset */
   Elf32_Word   e_flags;                   /* processor-specific flags */
   Elf32_Half   e_ehsize;                  /* ELF header size */
   Elf32_Half   e_phentsize;               /* program header entry size */
   Elf32_Half   e_phnum;                   /* number of program header entries */
   Elf32_Half   e_shentsize;               /* section header entry size */
   Elf32_Half   e_shnum;                   /* number of section header entries */
   Elf32_Half   e_shstrndx;                /* section header table's "section
                                             header string table" entry offset */
} Elf32_Ehdr;

/* 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           /* number of types */
#define ET_LOOS         0xfe00      /* reserved range for operating */
#define ET_HIOS         0xfeff      /*  system specific e_type */
#define ET_LOPROC       0xff00      /* reserved range for processor */
#define ET_HIPROC       0xffff      /*  specific e_type */

/* 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 */
#if 0
#define EM_486            6     /* RESERVED - was Intel 80486 */
#endif
#define EM_860            7     /* Intel 80860 */
#define EM_MIPS        8        /* MIPS R3000 Big-Endian only */
#define EM_S370        9        /* IBM System/370 Processor */
#define EM_MIPS_RS4_BE  10      /* MIPS R4000 Big-Endian */
#if 0
#define EM_SPARC64  11         /* RESERVED - was SPARC v9
                                       64-bit unoffical */
#endif

/* RESERVED 11-14 for future use */

#define EM_PARISC         15        /* HPPA */
                              /* RESERVED 16 for future use */
#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 */
#define EM_S390     22       /* IBM System/390 Processor */
                              /* RESERVED 23-35 for future use */
#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 SH */
#define EM_SPARCV9  43         /* SPARC Version 9 */
#define EM_TRICORE  44         /* Siemens TriCore embedded processor */
#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 */
#define EM_MIPS_X      51          /* Stanford MIPS-X */
#define EM_COLDFIRE 52         /* Motorola Coldfire */
#define EM_68HC12      53          /* Motorola M68HC12 */
#define EM_MMA         54          /* Fujitsu MMA Multimedia Accelerator*/
#define EM_PCP         55          /* Siemens PCP */
#define EM_NCPU     56         /* Sony nCPU embedded RISC */
#define EM_NDR1     57         /* Denso NDR1 microprocessor */
#define EM_STARCORE 58         /* Motorola Start*Core processor */
#define EM_ME16     59         /* Toyota ME16 processor */
#define EM_ST100       60          /* STMicroelectronic ST100 processor */
#define EM_TINYJ       61          /* Advanced Logic Corp. Tinyj emb.fam*/
#define EM_X86_64    62        /* AMD x86-64 */
#define EM_PDSP     63       /* Sony DSP Processor */
                              /* RESERVED 64,65 for future use */
#define EM_FX66     66         /* Siemens FX66 microcontroller */
#define EM_ST9PLUS  67         /* STMicroelectronics ST9+ 8/16 mc */
#define EM_ST7       68        /* STmicroelectronics ST7 8 bit mc */
#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 mc */
#define EM_VAX        75           /* Digital VAX */
#define EM_CHRIS     76       /* Axis Communications embedded proc. */
#define EM_JAVELIN  77         /* Infineon Technologies emb. proc. */
#define EM_FIREPATH 78        /* Element 14 64-bit DSP Processor */
#define EM_ZSP        79          /* LSI Logic 16-bit DSP Processor */
#define EM_MMIX     80         /* Donald Knuth's edu 64-bit proc. */
#define EM_HUANY     81       /* Harvard University mach-indep objs */
#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 DV10V */
#define EM_D30V     86       /* Mitsubishi DV30V */
#define EM_V850     87       /* NEC v850 */
#define EM_M32R     88       /* Mitsubishi M32R */
#define EM_MN10300  89       /* Matsushita MN10200 */
#define EM_MN10200  90       /* Matsushita MN10200 */
#define EM_PJ        91       /* picoJava */
#define EM_NUM       92       /* number of machine types */

/* Version */

#define EV_NONE     0          /* Invalid */
#define EV_CURRENT  1          /* Current */
#define EV_NUM       2        /* number of versions */

/* Section Header */

typedef struct
{
    Elf32_Word  sh_name;       /* name - index into section header
                                      string table section */
    Elf32_Word  sh_type;       /* type */
    Elf32_Word  sh_flags;      /* flags */
    Elf32_Addr  sh_addr;       /* address */
    Elf32_Off   sh_offset;     /* file offset */
    Elf32_Word  sh_size;       /* section size */
    Elf32_Word  sh_link;       /* section header table index link */
    Elf32_Word  sh_info;       /* extra information */
    Elf32_Word  sh_addralign;  /* address alignment */
    Elf32_Word  sh_entsize;    /* section entry size */
} Elf32_Shdr;

/* Special Section Indexes */

#define SHN_UNDEF       0           /* undefined */
#define SHN_LORESERVE   0xff00      /* lower bounds of reserved indexes */
#define SHN_LOPROC      0xff00      /* reserved range for processor */
#define SHN_HIPROC      0xff1f      /* specific section indexes */
#define SHN_LOOS        0xff20      /* reserved range for operating */
#define SHN_HIOS        0xff3f      /* specific semantics */
#define SHN_ABS         0xfff1      /* absolute value */
#define SHN_COMMON      0xfff2      /* common symbol */
#define SHN_XINDEX      0xffff      /* Index is an extra table */
#define SHN_HIRESERVE   0xffff      /* upper bounds of reserved indexes */

/* sh_type */

#define SHT_NULL             0      /* inactive */
#define SHT_PROGBITS          1     /* program defined information */
#define SHT_SYMTAB        2     /* symbol table section */
#define SHT_STRTAB        3     /* string table section */
#define SHT_RELA             4      /* relocation section with addends*/
#define SHT_HASH             5      /* symbol hash table section */
#define SHT_DYNAMIC       6     /* dynamic section */
#define SHT_NOTE             7      /* note section */
#define SHT_NOBITS        8     /* no space section */
#define SHT_REL           9     /* relation section without addends */
#define SHT_SHLIB           10      /* reserved - purpose unknown */
#define SHT_DYNSYM       11     /* dynamic symbol table section */
#define SHT_INIT_ARRAY    14        /* Array of constructors */
#define SHT_FINI_ARRAY    15        /* Array of destructors */
#define SHT_PREINIT_ARRAY 16        /* Array of pre-constructors */
#define SHT_GROUP           17      /* Section group */
#define SHT_SYMTAB_SHNDX  18        /* Extended section indeces */
#define SHT_NUM          19     /* number of section types */
#define SHT_LOOS      0x60000000    /* Start OS-specific */
#define SHT_HIOS      0x6fffffff    /* End OS-specific */
#define SHT_LOPROC  0x70000000  /* reserved range for processor */
#define SHT_HIPROC  0x7fffffff  /*  specific section header types */
#define SHT_LOUSER  0x80000000  /* reserved range for application */
#define SHT_HIUSER  0xffffffff  /*  specific indexes */

/* Section names */
#define ELF_BSS         ".bss"         /* uninitialized data */
#define ELF_COMMENT     ".comment"     /* version control information */
#define ELF_DATA        ".data"        /* initialized data */
#define ELF_DATA1       ".data1"       /* initialized data */
#define ELF_DEBUG       ".debug"       /* debug */
#define ELF_DYNAMIC     ".dynamic"     /* dynamic linking information */
#define ELF_DYNSTR      ".dynstr"      /* dynamic string table */
#define ELF_DYNSYM      ".dynsym"      /* dynamic symbol table */
#define ELF_FINI        ".fini"        /* termination code */
#define ELF_FINI_ARRAY  ".fini_array"   /* Array of destructors */
#define ELF_GOT         ".got"         /* global offset table */
#define ELF_HASH        ".hash"        /* symbol hash table */
#define ELF_INIT        ".init"        /* initialization code */
#define ELF_INIT_ARRAY  ".init_array"   /* Array of constuctors */
#define ELF_INTERP     ".interp"      /* Pathname of program interpreter */
#define ELF_LINE          ".line"        /* Symbolic line numnber information */
#define ELF_NOTE        ".note"        /* Contains note section */
#define ELF_PLT         ".plt"         /* Procedure linkage table */
#define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */
#define ELF_REL_DATA    ".rel.data"    /* relocation data */
#define ELF_REL_FINI    ".rel.fini"    /* relocation termination code */
#define ELF_REL_INIT    ".rel.init"    /* relocation initialization code */
#define ELF_REL_DYN     ".rel.dyn"     /* relocaltion dynamic link info */
#define ELF_REL_RODATA  ".rel.rodata"   /* relocation read-only data */
#define ELF_REL_TEXT    ".rel.text"    /* relocation code */
#define ELF_RODATA      ".rodata"      /* read-only data */
#define ELF_RODATA1     ".rodata1"     /* read-only data */
#define ELF_SHSTRTAB    ".shstrtab"    /* section header string table */
#define ELF_STRTAB      ".strtab"      /* string table */
#define ELF_SYMTAB      ".symtab"      /* symbol table */
#define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */
#define ELF_TBSS           ".tbss"         /* thread local uninit data */
#define ELF_TDATA          ".tdata"    /* thread local init data */
#define ELF_TDATA1      ".tdata1"      /* thread local init data */
#define ELF_TEXT         ".text"          /* code */

/* Section Attribute Flags - sh_flags */

#define SHF_WRITE             0x1         /* Writable */
#define SHF_ALLOC             0x2         /* occupies memory */
#define SHF_EXECINSTR         0x4         /* executable */
#define SHF_MERGE             0x10        /* Might be merged */
#define SHF_STRINGS           0x20        /* Contains NULL terminated strings */
#define SHF_INFO_LINK         0x40        /* sh_info contains SHT index */
#define SHF_LINK_ORDER        0x80        /* Preserve order after combining*/
#define SHF_OS_NONCONFORMING  0x100       /* Non-standard OS specific handling */
#define SHF_GROUP             0x200        /* Member of section group */
#define SHF_TLS               0x400       /* Thread local storage */
#define SHF_MASKOS            0x0ff00000    /* OS specific */
#define SHF_MASKPROC          0xf0000000    /* reserved bits for processor */
                                          /*  specific section attributes */

/* Section Group Flags */

#define GRP_COMDAT  0x1         /* COMDAT group */
#define GRP_MASKOS  0x0ff00000  /* Mask OS specific flags */
#define GRP_MASKPROC    0xf0000000  /* Mask processor specific flags */

/* Symbol Table Entry */

typedef struct elf32_sym
{
    Elf32_Word  st_name;       /* name - index into string table */
    Elf32_Addr  st_value;      /* symbol value */
    Elf32_Word  st_size;       /* symbol size */
    unsigned char   st_info;    /* type and binding */
    unsigned char   st_other;   /* 0 - no defined meaning */
    Elf32_Half  st_shndx;      /* section header index */
} Elf32_Sym;

/* Symbol table index */

#define STN_UNDEF    0        /* undefined */

/* Extract symbol info - st_info */

#define ELF32_ST_BIND(x)          ((x) >> 4)
#define ELF32_ST_TYPE(x)          (((unsigned int) x) & 0xf)
#define ELF32_ST_INFO(b,t)       (((b) << 4) + ((t) & 0xf))
#define ELF32_ST_VISIBILITY(x)  ((x) & 0x3)

/* Symbol Binding - ELF32_ST_BIND - st_info */

#define STB_LOCAL    0        /* Local symbol */
#define STB_GLOBAL  1          /* Global symbol */
#define STB_WEAK     2        /* like global - lower precedence */
#define STB_NUM     3          /* number of symbol bindings */
#define STB_LOOS     10       /* reserved range for operating */
#define STB_HIOS     12       /*   system specific symbol bindings */
#define STB_LOPROC  13         /* reserved range for processor */
#define STB_HIPROC  15         /*  specific symbol bindings */

/* Symbol type - ELF32_ST_TYPE - st_info */
#define STT_NOTYPE      0       /* not specified */
#define STT_OBJECT      1       /* data object */
#define STT_FUNC        2       /* function */
#define STT_SECTION     3       /* section */
#define STT_FILE        4       /* file */
#define STT_NUM         5       /* number of symbol types */
#define STT_TLS         6       /* Thread local storage symbol */
#define STT_LOOS        10      /* reserved range for operating */
#define STT_HIOS        12      /*  system specific symbol types */
#define STT_LOPROC      13      /* reserved range for processor */
#define STT_HIPROC      15      /*  specific symbol types */

/* Symbol visibility - ELF32_ST_VISIBILITY - st_other */

#define STV_DEFAULT     0       /* Normal visibility rules */
#define STV_INTERNAL    1       /* Processor specific hidden class */
#define STV_HIDDEN      2       /* Symbol unavailable in other mods */
#define STV_PROTECTED   3       /* Not preemptible, not exported */


/* Relocation entry with implicit addend */

typedef struct
{
    Elf32_Addr  r_offset;   /* offset of relocation */
    Elf32_Word  r_info;     /* symbol table index and type */
} Elf32_Rel;

/* Relocation entry with explicit addend */

typedef struct
{
    Elf32_Addr  r_offset;   /* offset of relocation */
    Elf32_Word  r_info;     /* symbol table index and type */
    Elf32_Sword r_addend;
} Elf32_Rela;

/* Extract relocation info - r_info */

#define ELF32_R_SYM(i)      ((i) >> 8)
#define ELF32_R_TYPE(i)     ((unsigned char) (i))
#define ELF32_R_INFO(s,t)   (((s) << 8) + (unsigned char)(t))

/* Program Header */
typedef struct
{
    Elf32_Word  p_type;           /* segment type */
    Elf32_Off   p_offset;         /* segment offset */
    Elf32_Addr  p_vaddr;          /* virtual address of segment */
    Elf32_Addr  p_paddr;          /* physical address - ignored? */
    Elf32_Word  p_filesz;         /* number of bytes in file for seg. */
    Elf32_Word  p_memsz;          /* number of bytes in mem. for seg. */
    Elf32_Word  p_flags;          /* flags */
    Elf32_Word  p_align;          /* memory alignment */
} Elf32_Phdr;

/* Segment types - p_type */

#define PT_NULL     0             /* unused */
#define PT_LOAD     1             /* loadable segment */
#define PT_DYNAMIC  2           /* dynamic linking section */
#define PT_INTERP    3           /* the RTLD */
#define PT_NOTE     4           /* auxiliary information */
#define PT_SHLIB     5           /* reserved - purpose undefined */
#define PT_PHDR     6           /* program header */
#define PT_TLS       7           /* Thread local storage template */
#define PT_NUM       8           /* Number of segment types */
#define PT_LOOS     0x60000000  /* reserved range for operating */
#define PT_HIOS     0x6fffffff  /*   system specific segment types */
#define PT_LOPROC    0x70000000 /* reserved range for processor */
#define PT_HIPROC    0x7fffffff /*  specific segment types */

/* Segment flags - p_flags */
#define PF_X        0x1           /* Executable */
#define PF_W        0x2           /* Writable */
#define PF_R        0x4           /* Readable */
#define PF_MASKOS   0x0ff00000     /* OS specific segment flags */
#define PF_MASKPROC 0xf0000000  /* reserved bits for processor */
                                      /*  specific segment flags */

/* Dynamic structure */
typedef struct
{
    Elf32_Sword d_tag;            /* controls meaning of d_val */
    union
    {
        Elf32_Word  d_val;         /* Multiple meanings - see d_tag */
        Elf32_Addr  d_ptr;         /* program virtual address */
    } d_un;
} Elf32_Dyn;

extern Elf32_Dyn    _DYNAMIC[];

/* Dynamic Array Tags - d_tag */

#define DT_NULL            0                   /* marks end of _DYNAMIC array */
#define DT_NEEDED           1                /* string table offset of needed lib */
#define DT_PLTRELSZ         2                /* size of relocation entries in PLT */
#define DT_PLTGOT           3                /* address PLT/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 relocation table */
#define DT_RELASZ           8                /* size of relocation table */
#define DT_RELAENT          9                  /* size of relocation entry */
#define DT_STRSZ           10                /* size of string table */
#define DT_SYMENT          11                /* size of symbol table entry */
#define DT_INIT            12                /* address of initialization func. */
#define DT_FINI            13                /* address of termination function */
#define DT_SONAME          14                /* string table offset of shared obj */
#define DT_RPATH           15                /* string table offset of library search path */
#define DT_SYMBOLIC        16                /* start sym search in shared obj. */
#define DT_REL             17                /* address of rel. tbl. w addends */
#define DT_RELSZ           18                /* size of DT_REL relocation table */
#define DT_RELENT          19                /* size of DT_REL relocation entry */
#define DT_PLTREL          20                /* PLT referenced relocation entry */
#define DT_DEBUG           21                /* bugger */
#define DT_TEXTREL         22                   /* Allow rel. mod. to unwritable seg */
#define DT_JMPREL          23                /* add. of PLT's relocation entries */
#define DT_BIND_NOW        24                /* Process relocations of object */
#define DT_INIT_ARRAY      25                /* Array with addresses of init fct */
#define DT_FINI_ARRAY      26                /* Array with addresses of fini fct */
#define DT_INIT_ARRAYSZ    27                /* Size in bytes of DT_INIT_ARRAY */
#define DT_FINI_ARRAYSZ    28                /* Size in bytes of DT_FINI_ARRAY */
#define DT_RUNPATH         29                  /* Library search path */
#define DT_FLAGS           30                /* Flags for the object being loaded */
#define DT_ENCODING        32                /* Start of encoded range */
#define DT_PREINIT_ARRAY   32                /* Array with addresses of preinit fct*/
#define DT_PREINIT_ARRAYSZ 33                /* size in bytes of DT_PREINIT_ARRAY */
#define DT_NUM             34                  /* Number used. */
#define DT_LOOS            0x60000000        /* reserved range for OS */
#define DT_HIOS            0x6fffffff        /*   specific dynamic array tags */
#define DT_LOPROC          0x70000000        /* reserved range for processor */
#define DT_HIPROC          0x7fffffff        /*  specific dynamic array tags */

/* Dynamic Tag Flags - d_un.d_val */

#define DF_ORIGIN          0x01              /* Object may use DF_ORIGIN */
#define DF_SYMBOLIC        0x02              /* Symbol resolutions starts here */
#define DF_TEXTRE          0x04              /* Object contains text relocations */
#define DF_BIND_NOW        0x08              /* No lazy binding for this object */
#define DF_STATIC_TLS      0x10              /* Static thread local storage */

/* Standard ELF hashing function */

unsigned long elf_hash(const unsigned char *name);

#define ELF_TARG_VER    1   /* The ver for which this code is intended */

/* XXX - PowerPC defines really don't belong in here,
 * but we'll put them in for simplicity. */

/* Values for Elf32/64_Ehdr.e_flags.  */
#define EF_PPC_EMB              0x80000000      /* PowerPC embedded flag */

/* Cygnus local bits below */
#define EF_PPC_RELOCATABLE      0x00010000      /* PowerPC -mrelocatable flag*/
#define EF_PPC_RELOCATABLE_LIB  0x00008000      /* PowerPC -mrelocatable-lib
                                                   flag */

/* PowerPC relocations defined by the ABIs */

#define R_PPC_NONE              0
#define R_PPC_ADDR32            1       /* 32bit absolute address */
#define R_PPC_ADDR24            2       /* 26bit address, 2 bits ignored.  */
#define R_PPC_ADDR16            3       /* 16bit absolute address */
#define R_PPC_ADDR16_LO         4       /* lower 16bit of absolute address */
#define R_PPC_ADDR16_HI         5       /* high 16bit of absolute address */
#define R_PPC_ADDR16_HA         6       /* adjusted high 16bit */
#define R_PPC_ADDR14            7       /* 16bit address, 2 bits ignored */
#define R_PPC_ADDR14_BRTAKEN    8
#define R_PPC_ADDR14_BRNTAKEN   9
#define R_PPC_REL24             10      /* PC relative 26 bit */
#define R_PPC_REL14             11      /* PC relative 16 bit */
#define R_PPC_REL14_BRTAKEN     12
#define R_PPC_REL14_BRNTAKEN    13
#define R_PPC_GOT16             14
#define R_PPC_GOT16_LO          15
#define R_PPC_GOT16_HI          16
#define R_PPC_GOT16_HA          17
#define R_PPC_PLTREL24          18
#define R_PPC_COPY              19
#define R_PPC_GLOB_DAT          20
#define R_PPC_JMP_SLOT          21
#define R_PPC_RELATIVE          22
#define R_PPC_LOCAL24PC         23
#define R_PPC_UADDR32           24
#define R_PPC_UADDR16           25
#define R_PPC_REL32             26
#define R_PPC_PLT32             27
#define R_PPC_PLTREL32          28
#define R_PPC_PLT16_LO          29
#define R_PPC_PLT16_HI          30
#define R_PPC_PLT16_HA          31
#define R_PPC_SDAREL16          32
#define R_PPC_SECTOFF           33
#define R_PPC_SECTOFF_LO        34
#define R_PPC_SECTOFF_HI        35
#define R_PPC_SECTOFF_HA        36
/* Keep this the last entry.  */
#define R_PPC_NUM               37

/* The remaining relocs are from the Embedded ELF ABI, and are not
   in the SVR4 ELF ABI.  */

#define R_PPC_EMB_NADDR32       101
#define R_PPC_EMB_NADDR16       102
#define R_PPC_EMB_NADDR16_LO    103
#define R_PPC_EMB_NADDR16_HI    104
#define R_PPC_EMB_NADDR16_HA    105
#define R_PPC_EMB_SDAI16        106
#define R_PPC_EMB_SDA2I16       107
#define R_PPC_EMB_SDA2REL       108
#define R_PPC_EMB_SDA21         109     /* 16 bit offset in SDA */
#define R_PPC_EMB_MRKREF        110
#define R_PPC_EMB_RELSEC16      111
#define R_PPC_EMB_RELST_LO      112
#define R_PPC_EMB_RELST_HI      113
#define R_PPC_EMB_RELST_HA      114
#define R_PPC_EMB_BIT_FLD       115
#define R_PPC_EMB_RELSDA        116     /* 16 bit relative offset in SDA */

/* Diab tool relocations.  */
#define R_PPC_DIAB_SDA21_LO     180     /* like EMB_SDA21, but lower 16 bit */
#define R_PPC_DIAB_SDA21_HI     181     /* like EMB_SDA21, but high 16 bit */
#define R_PPC_DIAB_SDA21_HA     182     /* like EMB_SDA21, adjusted high 16 */
#define R_PPC_DIAB_RELSDA_LO    183     /* like EMB_RELSDA, but lower 16 bit */
#define R_PPC_DIAB_RELSDA_HI    184     /* like EMB_RELSDA, but high 16 bit */
#define R_PPC_DIAB_RELSDA_HA    185     /* like EMB_RELSDA, adjusted high 16 */

/* This is a phony reloc to handle any old fashioned TOC16 references
   that may still be in object files.  */
#define R_PPC_TOC16             255

#endif /* _ELF_H */