elf.h

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/*****************************************************************************************
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 $Id$

*****************************************************************************************/

#ifndef _ELF_H
#define _ELF_H

#include <ubixos/types.h>

#define elfExecutable 0x002
#define elfLibrary    0x003

#define R_386_NONE      0 /* none    none        */
#define R_386_32        1 /* word32  S + A       */
#define R_386_PC32      2 /* word32  S + A - P   */
#define R_386_GOT32     3 /* word32  G + A - P   */
#define R_386_PLT32     4 /* word32  L + A - P   */
#define R_386_COPY      5 /* none    none        */
#define R_386_GLOB_DAT  6 /* word32  S           */
#define R_386_JMP_SLOT  7 /* word32  S           */
#define R_386_RELATIVE  8 /* word32  B + A       */
#define R_386_GOTOFF    9 /* word32  S + A - GOT */
#define R_386_GOTPC    10 /* word32  GOT + A - P */


/* Elf Types */
#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_LOPROC  0xff00  // Processor-specific
#define ET_HIPROC  0xffff
/* End Elf Types */

/* Elf Machine Types */
#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_860        7  // Intel 80860
#define EM_MIPS       8  // MIPS RS3000
/* End Elf Machines Types */

/* Elf Version */
#define EV_NONE          0  // Invalid version
#define EV_CURRENT       1  // Current version
/* End Elf Version */

/* Elf Program Header Types */
#define PT_NULL          0
#define PT_LOAD          1
#define PT_DYNAMIC       2
#define PT_INTERP        3
#define PT_NOTE          4
#define PT_SHLIB         5
#define PT_PHDR          6
#define PT_LOOS          0x60000000
#define PT_HIOS          0x6fffffff
#define PT_LOPROC        0x70000000
#define PT_HIPROC        0x7fffffff
#define PT_GNU_EH_FRAME  0x6474e550
#define PT_GNU_STACK     (PT_LOOS + 0x474e551)
#define PT_GNU_RELRO     (PT_LOOS + 0x474e552) 
#define PT_PAX_FLAGS     (PT_LOOS + 0x5041580) 

/* End Elf Program Header Types */

typedef struct {
  uInt8  eIdent[16]; /* File identification. */
  uInt16 eType;      /* File type. */
  uInt16 eMachine;   /* Machine architecture. */
  uInt32  eVersion;   /* ELF format version. */
  uInt32  eEntry;     /* Entry point. */
  uInt32  ePhoff;     /* Program header file offset. */
  uInt32  eShoff;     /* Section header file offset. */
  uInt32  eFlags;     /* Architecture-specific flags. */
  uInt16 eEhsize;    /* Size of ELF header in bytes. */
  uInt16 ePhentsize; /* Size of program header entry. */
  uInt16 ePhnum;     /* Number of program header entries. */
  uInt16 eShentsize; /* Size of section header entry. */
  uInt16 eShnum;     /* Number of section header entries. */
  uInt16 eShstrndx;  /* Section name strings section. */
  } elfHeader;

typedef struct {
  uInt32 phType;         /* Entry type. */
  uInt32 phOffset;       /* File offset of contents. */
  uInt32 phVaddr;        /* Virtual address in memory image. */
  uInt32 phPaddr;        /* Physical address (not used). */
  uInt32 phFilesz;       /* Size of contents in file. */
  uInt32 phMemsz;        /* Size of contents in memory. */
  uInt32 phFlags;        /* Access permission flags. */
  uInt32 phAlign;        /* Alignment in memory and file. */
  } elfProgramHeader;

typedef struct {
  uInt32 shName;        /* Section name (index into the section header string table). */
  uInt32 shType;        /* Section type. */
  uInt32 shFlags;       /* Section flags. */
  uInt32 shAddr;        /* Address in memory image. */
  uInt32 shOffset;      /* Offset in file. */
  uInt32 shSize;        /* Size in bytes. */
  uInt32 shLink;        /* Index of a related section. */
  uInt32 shInfo;        /* Depends on section type. */
  uInt32 shAddralign;   /* Alignment in bytes. */
  uInt32 shEntsize;     /* Size of each entry in section. */
  } elfSectionHeader;

typedef struct {
  uInt32 pltOffset;
  uInt32 pltInfo;
  } elfPltInfo;

typedef struct {
  uInt32 dynName;
  uInt32 dynValue;
  uInt32 dynSize;
  uInt32 dynInfo;
  } elfDynSym;

typedef struct {
  uInt32 dynVal;
  uInt32 dynPtr;
  } elfDynamic;

char *elfGetShType(int);
char *elfGetPhType(int);
char *elfGetRelType(int);

#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))

#endif

/***
 $Log$
 Revision 1.1.1.1  2006/06/01 12:46:13  reddawg
 ubix2

 Revision 1.2  2005/10/12 00:13:37  reddawg
 Removed

 Revision 1.1.1.1  2005/09/26 17:23:54  reddawg
 no message

 Revision 1.7  2004/09/11 01:20:08  apwillia
 Clean up 'Unhandled Header' printfs when compiled in linux

 Revision 1.6  2004/06/16 14:04:51  reddawg
 Renamed a typedef

 Revision 1.5  2004/06/14 12:20:54  reddawg
 notes: many bugs repaired and ld works 100% now.

 Revision 1.4  2004/06/12 01:27:26  reddawg
 shared objects: yes we almost fully support shared objects

 Revision 1.3  2004/05/21 15:20:00  reddawg
 Cleaned up


 END
 ***/

---