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[Xen-changelog] [xen-unstable] add libelf: an ELF binary parser library.

To: xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-changelog] [xen-unstable] add libelf: an ELF binary parser library.
From: Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 26 Jan 2007 05:35:19 -0800
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# HG changeset patch
# User Emmanuel Ackaouy <ack@xxxxxxxxxxxxx>
# Date 1169763412 0
# Node ID db3d03dfe92fee126e473ac1c2e97d02c0cb79e2
# Parent  b111908dd70b82edda1a0e61de6a269a9bff890d
add libelf: an ELF binary parser library.

This patch adds a library with a small collection of helper functions
to parse and load elf binaries.  The library handles endianess and
elfsize at runtime.

The patch also shuffles around the include files a bit.  Now there is
*one* include file holding all the elf structures
(xen/include/public/elfstructs.h) which is included by everyone who
needs them.

It's dead code with this patch only, putting the code into use happens
in followup patches.

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxx>
---
 tools/libxc/xc_elf.h                |  525 -----------------------------------
 xen/arch/x86/boot/mkelf32.c         |    2 
 xen/common/Makefile                 |    2 
 xen/common/libelf/Makefile          |    4 
 xen/common/libelf/README            |    1 
 xen/common/libelf/libelf-dominfo.c  |  420 ++++++++++++++++++++++++++++
 xen/common/libelf/libelf-loader.c   |  156 ++++++++++
 xen/common/libelf/libelf-private.h  |   51 +++
 xen/common/libelf/libelf-relocate.c |  345 +++++++++++++++++++++++
 xen/common/libelf/libelf-tools.c    |  225 +++++++++++++++
 xen/include/public/elfstructs.h     |  527 ++++++++++++++++++++++++++++++++++++
 xen/include/public/libelf.h         |  238 ++++++++++++++++
 xen/include/xen/elf.h               |  490 ---------------------------------
 13 files changed, 1972 insertions(+), 1014 deletions(-)

diff -r b111908dd70b -r db3d03dfe92f tools/libxc/xc_elf.h
--- a/tools/libxc/xc_elf.h      Thu Jan 25 18:54:25 2007 +0000
+++ b/tools/libxc/xc_elf.h      Thu Jan 25 22:16:52 2007 +0000
@@ -1,524 +1,1 @@
-/*
- * Copyright (c) 1995, 1996 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.
- */
-
-typedef uint8_t                Elf_Byte;
-
-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 */
-
-typedef uint64_t       Elf64_Addr;
-typedef uint64_t       Elf64_Off;
-typedef int32_t                Elf64_Shalf;
-
-typedef int32_t                Elf64_Sword;
-typedef uint32_t       Elf64_Word;
-
-typedef int64_t                Elf64_Sxword;
-typedef uint64_t       Elf64_Xword;
-
-typedef uint32_t       Elf64_Half;
-typedef uint16_t       Elf64_Quarter;
-
-/*
- * e_ident[] identification indexes
- * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
- */
-#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 ID */
-#define EI_ABIVERSION  8               /* ABI 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[] Operating System/ABI */
-#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 common IA32 ABI */
-#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_ARM           97      /* ARM */
-#define ELFOSABI_STANDALONE    255     /* Standalone (embedded) application */
-
-/* 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;
-
-typedef struct {
-       unsigned char   e_ident[EI_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_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_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 */
-#define EM_486         6               /* Intel 80486 - unused? */
-#define EM_860         7               /* Intel 80860 */
-#define EM_MIPS                8               /* MIPS R3000 Big-Endian only */
-/*
- * Don't know if EM_MIPS_RS4_BE,
- * EM_SPARC64, EM_PARISC,
- * or EM_PPC are ABI compliant
- */
-#define EM_MIPS_RS4_BE 10              /* MIPS R4000 Big-Endian */
-#define EM_SPARC64     11              /* SPARC v9 64-bit unoffical */
-#define EM_PARISC      15              /* HPPA */
-#define EM_SPARC32PLUS 18              /* Enhanced instruction set SPARC */
-#define EM_PPC         20              /* PowerPC */
-#define EM_PPC64       21              /* PowerPC 64-bit */
-#define EM_ARM         40              /* Advanced RISC Machines ARM */
-#define EM_ALPHA       41              /* DEC ALPHA */
-#define EM_SPARCV9     43              /* SPARC version 9 */
-#define EM_ALPHA_EXP   0x9026          /* DEC ALPHA */
-#define EM_IA_64       50              /* Intel Merced */
-#define EM_X86_64      62              /* AMD x86-64 architecture */
-#define EM_VAX         75              /* DEC VAX */
-
-/* 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;
-
-typedef struct {
-       Elf64_Half      sh_name;        /* section name */
-       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;
-
-/* 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_ABS                0xfff1          /* absolute value */
-#define SHN_COMMON     0xfff2          /* common symbol */
-#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_NUM                12              /* number of section types */
-#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_DATA        ".data"                /* 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_GOT         ".got"         /* global offset table */
-#define ELF_HASH        ".hash"                /* symbol hash table */
-#define ELF_INIT        ".init"                /* initialization code */
-#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_SHSTRTAB    ".shstrtab"    /* section header string table */
-#define ELF_STRTAB      ".strtab"      /* string table */
-#define ELF_SYMTAB      ".symtab"      /* symbol table */
-#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_MASKPROC   0xf0000000      /* reserved bits for processor */
-                                       /*  specific section attributes */
-
-/* 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;
-
-typedef struct {
-       Elf64_Half      st_name;        /* Symbol name index in str table */
-       Elf_Byte        st_info;        /* type / binding attrs */
-       Elf_Byte        st_other;       /* unused */
-       Elf64_Quarter   st_shndx;       /* section index of symbol */
-       Elf64_Xword     st_value;       /* value of symbol */
-       Elf64_Xword     st_size;        /* size of symbol */
-} Elf64_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 ELF64_ST_BIND(x)       ((x) >> 4)
-#define ELF64_ST_TYPE(x)       (((unsigned int) x) & 0xf)
-#define ELF64_ST_INFO(b,t)     (((b) << 4) + ((t) & 0xf))
-
-/* 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_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_LOPROC     13              /* reserved range for processor */
-#define STT_HIPROC     15              /*  specific symbol types */
-
-/* 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))
-
-typedef struct {
-       Elf64_Xword     r_offset;       /* where to do it */
-       Elf64_Xword     r_info;         /* index & type of relocation */
-} Elf64_Rel;
-
-typedef struct {
-       Elf64_Xword     r_offset;       /* where to do it */
-       Elf64_Xword     r_info;         /* index & type of relocation */
-       Elf64_Sxword    r_addend;       /* adjustment value */
-} Elf64_Rela;
-
-#define        ELF64_R_SYM(info)       ((info) >> 32)
-#define        ELF64_R_TYPE(info)      ((info) & 0xFFFFFFFF)
-#define ELF64_R_INFO(s,t)      (((s) << 32) + (u_int32_t)(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;
-
-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;
-
-/* 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_NUM         7               /* Number of 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_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;
-
-typedef struct {
-       Elf64_Xword     d_tag;          /* controls meaning of d_val */
-       union {
-               Elf64_Addr      d_ptr;
-               Elf64_Xword     d_val;
-       } d_un;
-} Elf64_Dyn;
-
-/* 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              /* Bind now regardless of env setting */
-#define DT_NUM         25              /* Number used. */
-#define DT_LOPROC      0x70000000      /* reserved range for processor */
-#define DT_HIPROC      0x7fffffff      /*  specific dynamic array tags */
-
-/* Standard ELF hashing function */
-unsigned int elf_hash(const unsigned char *name);
-
-/*
- * Note Definitions
- */
-typedef struct {
-       Elf32_Word namesz;
-       Elf32_Word descsz;
-       Elf32_Word type;
-} Elf32_Note;
-
-typedef struct {
-       Elf64_Half namesz;
-       Elf64_Half descsz;
-       Elf64_Half type;
-} Elf64_Note;
-
-
-#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 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_Nhdr       Elf32_Nhdr
-#define Elf_Note       Elf32_Note
-
-#define ELF_R_SYM      ELF32_R_SYM
-#define ELF_R_TYPE     ELF32_R_TYPE
-#define ELF_R_INFO     ELF32_R_INFO
-#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
-#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_Nhdr       Elf64_Nhdr
-#define Elf_Note       Elf64_Note
-
-#define ELF_R_SYM      ELF64_R_SYM
-#define ELF_R_TYPE     ELF64_R_TYPE
-#define ELF_R_INFO     ELF64_R_INFO
-#define ELFCLASS       ELFCLASS64
-
-#define ELF_ST_BIND    ELF64_ST_BIND
-#define ELF_ST_TYPE    ELF64_ST_TYPE
-#define ELF_ST_INFO    ELF64_ST_INFO
-
-#define AuxInfo                Aux64Info
-#endif
-
+#include <xen/elfstructs.h>
diff -r b111908dd70b -r db3d03dfe92f xen/arch/x86/boot/mkelf32.c
--- a/xen/arch/x86/boot/mkelf32.c       Thu Jan 25 18:54:25 2007 +0000
+++ b/xen/arch/x86/boot/mkelf32.c       Thu Jan 25 22:16:52 2007 +0000
@@ -25,7 +25,7 @@
 #define s16 int16_t
 #define s32 int32_t
 #define s64 int64_t
-#include "../../../include/xen/elf.h"
+#include "../../../include/public/elfstructs.h"
 
 #define DYNAMICALLY_FILLED   0
 #define RAW_OFFSET         128
diff -r b111908dd70b -r db3d03dfe92f xen/common/Makefile
--- a/xen/common/Makefile       Thu Jan 25 18:54:25 2007 +0000
+++ b/xen/common/Makefile       Thu Jan 25 22:16:52 2007 +0000
@@ -37,6 +37,8 @@ obj-$(CONFIG_XENCOMM) += xencomm.o
 
 subdir-$(CONFIG_COMPAT) += compat
 
+subdir-y += libelf
+
 # Object file contains changeset and compiler information.
 version.o: $(BASEDIR)/include/xen/compile.h
 
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/Makefile        Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,4 @@
+obj-y += libelf-tools.o
+obj-y += libelf-loader.o
+obj-y += libelf-dominfo.o
+#obj-y += libelf-relocate.o
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/README
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/README  Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,1 @@
+Take care, this code is used by both xen and tools ...
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/libelf-dominfo.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/libelf-dominfo.c        Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,420 @@
+/*
+ * parse xen-specific informations out of elf kernel binaries.
+ */
+
+#include "libelf-private.h"
+
+/* ------------------------------------------------------------------------ */
+/* xen features                                                             */
+
+const char *elf_xen_feature_names[] = {
+    [XENFEAT_writable_page_tables] = "writable_page_tables",
+    [XENFEAT_writable_descriptor_tables] = "writable_descriptor_tables",
+    [XENFEAT_auto_translated_physmap] = "auto_translated_physmap",
+    [XENFEAT_supervisor_mode_kernel] = "supervisor_mode_kernel",
+    [XENFEAT_pae_pgdir_above_4gb] = "pae_pgdir_above_4gb"
+};
+const int elf_xen_features =
+    sizeof(elf_xen_feature_names) / sizeof(elf_xen_feature_names[0]);
+
+int elf_xen_parse_features(const char *features,
+                          uint32_t *supported,
+                          uint32_t *required)
+{
+    char feature[64];
+    int pos, len, i;
+
+    if (NULL == features)
+       return 0;
+    for (pos = 0; features[pos] != '\0'; pos += len)
+    {
+       memset(feature, 0, sizeof(feature));
+       for (len = 0;; len++)
+       {
+           if (len >= sizeof(feature)-1)
+               break;
+           if (features[pos + len] == '\0')
+               break;
+           if (features[pos + len] == '|')
+           {
+               len++;
+               break;
+           }
+           feature[len] = features[pos + len];
+       }
+
+       for (i = 0; i < elf_xen_features; i++)
+       {
+           if (!elf_xen_feature_names[i])
+               continue;
+           if (NULL != required && feature[0] == '!')
+           {
+               /* required */
+               if (0 == strcmp(feature + 1, elf_xen_feature_names[i]))
+               {
+                   elf_xen_feature_set(i, supported);
+                   elf_xen_feature_set(i, required);
+                   break;
+               }
+           }
+           else
+           {
+               /* supported */
+               if (0 == strcmp(feature, elf_xen_feature_names[i]))
+               {
+                   elf_xen_feature_set(i, supported);
+                   break;
+               }
+           }
+       }
+       if (i == elf_xen_features)
+           return -1;
+    }
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+/* xen elf notes                                                            */
+
+int elf_xen_parse_note(struct elf_binary *elf,
+                      struct elf_dom_parms *parms,
+                      const elf_note *note)
+{
+/* *INDENT-OFF* */
+    static const struct {
+       char *name;
+       int str;
+    } note_desc[] = {
+       [XEN_ELFNOTE_ENTRY] = { "ENTRY", 0},
+       [XEN_ELFNOTE_HYPERCALL_PAGE] = { "HYPERCALL_PAGE", 0},
+       [XEN_ELFNOTE_VIRT_BASE] = { "VIRT_BASE", 0},
+       [XEN_ELFNOTE_PADDR_OFFSET] = { "PADDR_OFFSET", 0},
+       [XEN_ELFNOTE_HV_START_LOW] = { "HV_START_LOW", 0},
+       [XEN_ELFNOTE_XEN_VERSION] = { "XEN_VERSION", 1},
+       [XEN_ELFNOTE_GUEST_OS] = { "GUEST_OS", 1},
+       [XEN_ELFNOTE_GUEST_VERSION] = { "GUEST_VERSION", 1},
+       [XEN_ELFNOTE_LOADER] = { "LOADER", 1},
+       [XEN_ELFNOTE_PAE_MODE] = { "PAE_MODE", 1},
+       [XEN_ELFNOTE_FEATURES] = { "FEATURES", 1},
+       [XEN_ELFNOTE_BSD_SYMTAB] = { "BSD_SYMTAB", 1},
+    };
+/* *INDENT-ON* */
+
+    const char *str = NULL;
+    uint64_t val = 0;
+    int type = elf_uval(elf, note, type);
+
+    if ((type >= sizeof(note_desc) / sizeof(note_desc[0])) ||
+       (NULL == note_desc[type].name))
+    {
+       elf_err(elf, "%s: unknown xen elf note (0x%x)\n",
+               __FUNCTION__, type);
+       return -1;
+    }
+
+    if (note_desc[type].str)
+    {
+       str = elf_note_desc(elf, note);
+       elf_msg(elf, "%s: %s = \"%s\"\n", __FUNCTION__,
+               note_desc[type].name, str);
+    }
+    else
+    {
+       val = elf_note_numeric(elf, note);
+       elf_msg(elf, "%s: %s = 0x%" PRIx64 "\n", __FUNCTION__,
+               note_desc[type].name, val);
+    }
+
+    switch (type)
+    {
+    case XEN_ELFNOTE_LOADER:
+       strncpy(parms->loader, str, sizeof(parms->loader));
+       break;
+    case XEN_ELFNOTE_GUEST_OS:
+       strncpy(parms->guest_os, str, sizeof(parms->guest_os));
+       break;
+    case XEN_ELFNOTE_GUEST_VERSION:
+       strncpy(parms->guest_ver, str, sizeof(parms->guest_ver));
+       break;
+    case XEN_ELFNOTE_XEN_VERSION:
+       strncpy(parms->xen_ver, str, sizeof(parms->xen_ver));
+       break;
+    case XEN_ELFNOTE_PAE_MODE:
+       if (0 == strcmp(str, "yes"))
+           parms->pae = 2 /* extended_cr3 */;
+       if (strstr(str, "bimodal"))
+           parms->pae = 3 /* bimodal */;
+       break;
+    case XEN_ELFNOTE_BSD_SYMTAB:
+       if (0 == strcmp(str, "yes"))
+           parms->bsd_symtab = 1;
+       break;
+
+    case XEN_ELFNOTE_VIRT_BASE:
+       parms->virt_base = val;
+       break;
+    case XEN_ELFNOTE_ENTRY:
+       parms->virt_entry = val;
+       break;
+    case XEN_ELFNOTE_PADDR_OFFSET:
+       parms->elf_paddr_offset = val;
+       break;
+    case XEN_ELFNOTE_HYPERCALL_PAGE:
+       parms->virt_hypercall = val;
+       break;
+    case XEN_ELFNOTE_HV_START_LOW:
+       parms->virt_hv_start_low = val;
+       break;
+
+    case XEN_ELFNOTE_FEATURES:
+       if (0 != elf_xen_parse_features(str, parms->f_supported,
+                                       parms->f_required))
+           return -1;
+       break;
+
+    }
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+/* __xen_guest section                                                      */
+
+int elf_xen_parse_guest_info(struct elf_binary *elf,
+                            struct elf_dom_parms *parms)
+{
+    const char *h;
+    char name[32], value[128];
+    int len;
+
+    h = parms->guest_info;
+    while (*h)
+    {
+       memset(name, 0, sizeof(name));
+       memset(value, 0, sizeof(value));
+       for (len = 0;; len++, h++) {
+           if (len >= sizeof(name)-1)
+               break;
+           if (*h == '\0')
+               break;
+           if (*h == ',')
+           {
+               h++;
+               break;
+           }
+           if (*h == '=')
+           {
+               h++;
+               for (len = 0;; len++, h++) {
+                   if (len >= sizeof(value)-1)
+                       break;
+                   if (*h == '\0')
+                       break;
+                   if (*h == ',')
+                   {
+                       h++;
+                       break;
+                   }
+                   value[len] = *h;
+               }
+               break;
+           }
+           name[len] = *h;
+       }
+       elf_msg(elf, "%s: %s=\"%s\"\n", __FUNCTION__, name, value);
+
+       /* strings */
+       if (0 == strcmp(name, "LOADER"))
+           strncpy(parms->loader, value, sizeof(parms->loader));
+       if (0 == strcmp(name, "GUEST_OS"))
+           strncpy(parms->guest_os, value, sizeof(parms->guest_os));
+       if (0 == strcmp(name, "GUEST_VER"))
+           strncpy(parms->guest_ver, value, sizeof(parms->guest_ver));
+       if (0 == strcmp(name, "XEN_VER"))
+           strncpy(parms->xen_ver, value, sizeof(parms->xen_ver));
+       if (0 == strcmp(name, "PAE"))
+       {
+           if (0 == strcmp(value, "yes[extended-cr3]"))
+               parms->pae = 2 /* extended_cr3 */;
+           else if (0 == strncmp(value, "yes", 3))
+               parms->pae = 1 /* yes */;
+       }
+       if (0 == strcmp(name, "BSD_SYMTAB"))
+           parms->bsd_symtab = 1;
+
+       /* longs */
+       if (0 == strcmp(name, "VIRT_BASE"))
+           parms->virt_base = strtoull(value, NULL, 0);
+       if (0 == strcmp(name, "VIRT_ENTRY"))
+           parms->virt_entry = strtoull(value, NULL, 0);
+       if (0 == strcmp(name, "ELF_PADDR_OFFSET"))
+           parms->elf_paddr_offset = strtoull(value, NULL, 0);
+       if (0 == strcmp(name, "HYPERCALL_PAGE"))
+           parms->virt_hypercall = (strtoull(value, NULL, 0) << 12) +
+               parms->virt_base;
+
+       /* other */
+       if (0 == strcmp(name, "FEATURES"))
+           if (0 != elf_xen_parse_features(value, parms->f_supported,
+                                           parms->f_required))
+               return -1;
+    }
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+/* sanity checks                                                            */
+
+static int elf_xen_note_check(struct elf_binary *elf,
+                             struct elf_dom_parms *parms)
+{
+    if (NULL == parms->elf_note_start && NULL == parms->guest_info) {
+       int machine = elf_uval(elf, elf->ehdr, e_machine);
+       if (EM_386 == machine || EM_X86_64 == machine) {
+           elf_err(elf, "%s: ERROR: Not a Xen-ELF image: "
+                   "No ELF notes or '__xen_guest' section found.\n",
+                   __FUNCTION__);
+           return -1;
+       }
+       return 0;
+    }
+
+    /* Check the contents of the Xen notes or guest string. */
+    if ( ( 0 == strlen(parms->loader) || strncmp(parms->loader, "generic", 7) 
) &&
+        ( 0 == strlen(parms->guest_os) || strncmp(parms->guest_os, "linux", 5) 
) )
+    {
+       elf_err(elf, "%s: ERROR: Will only load images built for the generic "
+               "loader or Linux images", __FUNCTION__);
+       return -1;
+    }
+
+    if ( 0 == strlen(parms->xen_ver) || strncmp(parms->xen_ver, "xen-3.0", 7) )
+    {
+       elf_err(elf, "%s: ERROR: Xen will only load images built for Xen 
v3.0\n",
+               __FUNCTION__);
+       return -1;
+    }
+    return 0;
+}
+
+static int elf_xen_addr_calc_check(struct elf_binary *elf,
+                                  struct elf_dom_parms *parms)
+{
+    if (UNSET_ADDR != parms->elf_paddr_offset &&
+       UNSET_ADDR == parms->virt_base )
+    {
+       elf_err(elf, "%s: ERROR: ELF_PADDR_OFFSET set, VIRT_BASE unset\n",
+               __FUNCTION__);
+        return -1;
+    }
+
+    /* Initial guess for virt_base is 0 if it is not explicitly defined. */
+    if (UNSET_ADDR == parms->virt_base)
+    {
+       parms->virt_base = 0;
+       elf_msg(elf, "%s: VIRT_BASE unset, using 0x%" PRIx64 "\n",
+               __FUNCTION__, parms->virt_base);
+    }
+
+    /*
+     * If we are using the legacy __xen_guest section then elf_pa_off
+     * defaults to v_start in order to maintain compatibility with
+     * older hypervisors which set padd in the ELF header to
+     * virt_base.
+     *
+     * If we are using the modern ELF notes interface then the default
+     * is 0.
+     */
+    if (UNSET_ADDR == parms->elf_paddr_offset)
+    {
+       if (parms->elf_note_start)
+           parms->elf_paddr_offset = 0;
+       else
+           parms->elf_paddr_offset = parms->virt_base;
+       elf_msg(elf, "%s: ELF_PADDR_OFFSET unset, using 0x%" PRIx64 "\n",
+               __FUNCTION__, parms->elf_paddr_offset);
+    }
+
+    parms->virt_offset = parms->virt_base - parms->elf_paddr_offset;
+    parms->virt_kstart = elf->pstart + parms->virt_offset;
+    parms->virt_kend   = elf->pend   + parms->virt_offset;
+
+    if (UNSET_ADDR == parms->virt_entry)
+       parms->virt_entry = elf_uval(elf, elf->ehdr, e_entry);
+
+    elf_msg(elf, "%s: addresses:\n", __FUNCTION__);
+    elf_msg(elf, "    virt_base        = 0x%" PRIx64 "\n", parms->virt_base);
+    elf_msg(elf, "    elf_paddr_offset = 0x%" PRIx64 "\n", 
parms->elf_paddr_offset);
+    elf_msg(elf, "    virt_offset      = 0x%" PRIx64 "\n", parms->virt_offset);
+    elf_msg(elf, "    virt_kstart      = 0x%" PRIx64 "\n", parms->virt_kstart);
+    elf_msg(elf, "    virt_kend        = 0x%" PRIx64 "\n", parms->virt_kend);
+    elf_msg(elf, "    virt_entry       = 0x%" PRIx64 "\n", parms->virt_entry);
+
+    if ( (parms->virt_kstart > parms->virt_kend) ||
+         (parms->virt_entry < parms->virt_kstart) ||
+         (parms->virt_entry > parms->virt_kend) ||
+         (parms->virt_base > parms->virt_kstart) )
+    {
+        elf_err(elf, "%s: ERROR: ELF start or entries are out of bounds.\n",
+               __FUNCTION__);
+        return -1;
+    }
+
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+/* glue it all together ...                                                 */
+
+int elf_xen_parse(struct elf_binary *elf,
+                 struct elf_dom_parms *parms)
+{
+    const elf_note *note;
+    const elf_shdr *shdr;
+    int xen_elfnotes = 0;
+    int i, count;
+
+    memset(parms, 0, sizeof(*parms));
+    parms->virt_base = UNSET_ADDR;
+    parms->virt_entry = UNSET_ADDR;
+    parms->virt_hypercall = UNSET_ADDR;
+    parms->virt_hv_start_low = UNSET_ADDR;
+    parms->elf_paddr_offset = UNSET_ADDR;
+
+    /* find and parse elf notes */
+    count = elf_shdr_count(elf);
+    for (i = 0; i < count; i++)
+    {
+       shdr = elf_shdr_by_index(elf, i);
+       if (0 == strcmp(elf_section_name(elf, shdr), "__xen_guest"))
+           parms->guest_info = elf_section_start(elf, shdr);
+       if (elf_uval(elf, shdr, sh_type) != SHT_NOTE)
+           continue;
+       parms->elf_note_start = elf_section_start(elf, shdr);
+       parms->elf_note_end   = elf_section_end(elf, shdr);
+       for (note = parms->elf_note_start;
+            (void *)note < parms->elf_note_end;
+            note = elf_note_next(elf, note))
+       {
+           if (0 != strcmp(elf_note_name(elf, note), "Xen"))
+               continue;
+           if (0 != elf_xen_parse_note(elf, parms, note))
+               return -1;
+           xen_elfnotes++;
+       }
+    }
+
+    if (!xen_elfnotes && parms->guest_info)
+    {
+       parms->elf_note_start = NULL;
+       parms->elf_note_end   = NULL;
+       elf_msg(elf, "%s: __xen_guest: \"%s\"\n", __FUNCTION__,
+               parms->guest_info);
+       elf_xen_parse_guest_info(elf, parms);
+    }
+
+    if (0 != elf_xen_note_check(elf, parms))
+       return -1;
+    if (0 != elf_xen_addr_calc_check(elf, parms))
+       return -1;
+    return 0;
+}
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/libelf-loader.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/libelf-loader.c Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,156 @@
+/*
+ * parse and load elf binaries
+ */
+
+#include "libelf-private.h"
+
+/* ------------------------------------------------------------------------ */
+
+int elf_init(struct elf_binary *elf, const char *image, size_t size)
+{
+    const elf_shdr *shdr;
+    uint64_t i, count, section, offset;
+
+    if (!elf_is_elfbinary(image))
+    {
+       elf_err(elf, "%s: not an ELF binary\n", __FUNCTION__);
+       return -1;
+    }
+
+    memset(elf, 0, sizeof(*elf));
+    elf->image = image;
+    elf->size = size;
+    elf->ehdr = (elf_ehdr *) image;
+    elf->class = elf->ehdr->e32.e_ident[EI_CLASS];
+    elf->data = elf->ehdr->e32.e_ident[EI_DATA];
+
+    /* sanity check phdr */
+    offset = elf_uval(elf, elf->ehdr, e_phoff) +
+       elf_uval(elf, elf->ehdr, e_phentsize) * elf_phdr_count(elf);
+    if (offset > elf->size)
+    {
+       elf_err(elf, "%s: phdr overflow (off %" PRIx64 " > size %lx)\n",
+               __FUNCTION__, offset, (unsigned long)elf->size);
+       return -1;
+    }
+
+    /* sanity check shdr */
+    offset = elf_uval(elf, elf->ehdr, e_shoff) +
+       elf_uval(elf, elf->ehdr, e_shentsize) * elf_shdr_count(elf);
+    if (offset > elf->size)
+    {
+       elf_err(elf, "%s: shdr overflow (off %" PRIx64 " > size %lx)\n",
+               __FUNCTION__, offset, (unsigned long)elf->size);
+       return -1;
+    }
+
+    /* find section string table */
+    section = elf_uval(elf, elf->ehdr, e_shstrndx);
+    shdr = elf_shdr_by_index(elf, section);
+    if (NULL != shdr)
+       elf->sec_strtab = elf_section_start(elf, shdr);
+
+    /* find symbol table, symbol string table */
+    count = elf_shdr_count(elf);
+    for (i = 0; i < count; i++)
+    {
+       shdr = elf_shdr_by_index(elf, i);
+       if (elf_uval(elf, shdr, sh_type) != SHT_SYMTAB)
+           continue;
+       elf->sym_tab = shdr;
+       shdr = elf_shdr_by_index(elf, elf_uval(elf, shdr, sh_link));
+       if (NULL == shdr)
+       {
+           elf->sym_tab = NULL;
+           continue;
+       }
+       elf->sym_strtab = elf_section_start(elf, shdr);
+       break;
+    }
+    return 0;
+}
+
+#ifndef __XEN__
+void elf_set_logfile(struct elf_binary *elf, FILE * log, int verbose)
+{
+    elf->log = log;
+    elf->verbose = verbose;
+}
+#else
+void elf_set_verbose(struct elf_binary *elf)
+{
+    elf->verbose = 1;
+}
+#endif
+
+void elf_parse_binary(struct elf_binary *elf)
+{
+    const elf_phdr *phdr;
+    uint64_t low = -1;
+    uint64_t high = 0;
+    uint64_t i, count, paddr, memsz;
+
+    count = elf_uval(elf, elf->ehdr, e_phnum);
+    for (i = 0; i < count; i++)
+    {
+       phdr = elf_phdr_by_index(elf, i);
+       if (!elf_phdr_is_loadable(elf, phdr))
+           continue;
+       paddr = elf_uval(elf, phdr, p_paddr);
+       memsz = elf_uval(elf, phdr, p_memsz);
+       elf_msg(elf, "%s: phdr: paddr=0x%" PRIx64
+               " memsz=0x%" PRIx64 "\n", __FUNCTION__, paddr, memsz);
+       if (low > paddr)
+           low = paddr;
+       if (high < paddr + memsz)
+           high = paddr + memsz;
+    }
+    elf->pstart = low;
+    elf->pend = high;
+    elf_msg(elf, "%s: memory: 0x%" PRIx64 " -> 0x%" PRIx64 "\n",
+           __FUNCTION__, elf->pstart, elf->pend);
+}
+
+void elf_load_binary(struct elf_binary *elf)
+{
+    const elf_phdr *phdr;
+    uint64_t i, count, paddr, offset, filesz, memsz;
+    char *dest;
+
+    count = elf_uval(elf, elf->ehdr, e_phnum);
+    for (i = 0; i < count; i++)
+    {
+       phdr = elf_phdr_by_index(elf, i);
+       if (!elf_phdr_is_loadable(elf, phdr))
+           continue;
+       paddr = elf_uval(elf, phdr, p_paddr);
+       offset = elf_uval(elf, phdr, p_offset);
+       filesz = elf_uval(elf, phdr, p_filesz);
+       memsz = elf_uval(elf, phdr, p_memsz);
+       dest = elf_get_ptr(elf, paddr);
+       memcpy(dest, elf->image + offset, filesz);
+       memset(dest + filesz, 0, memsz - filesz);
+    }
+}
+
+void *elf_get_ptr(struct elf_binary *elf, unsigned long addr)
+{
+    return elf->dest + addr - elf->pstart;
+}
+
+uint64_t elf_lookup_addr(struct elf_binary * elf, const char *symbol)
+{
+    const elf_sym *sym;
+    uint64_t value;
+
+    sym = elf_sym_by_name(elf, symbol);
+    if (NULL == sym)
+    {
+       elf_err(elf, "%s: not found: %s\n", __FUNCTION__, symbol);
+       return -1;
+    }
+    value = elf_uval(elf, sym, st_value);
+    elf_msg(elf, "%s: symbol \"%s\" at 0x%" PRIx64 "\n", __FUNCTION__,
+           symbol, value);
+    return value;
+}
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/libelf-private.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/libelf-private.h        Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,51 @@
+#ifdef __XEN__
+
+#include <xen/string.h>
+#include <xen/lib.h>
+#include <public/elfnote.h>
+#include <public/libelf.h>
+
+#define elf_msg(elf, fmt, args ... ) \
+       if (elf->verbose) printk(fmt, ## args )
+#define elf_err(elf, fmt, args ... ) \
+       printk(fmt, ## args )
+
+#define strtoull(str, end, base) simple_strtoull(str, end, base)
+#define bswap_16(x) \
+     ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+#define bswap_32(x) \
+     (  (((x) & 0xff000000) >> 24)  \
+      | (((x) & 0x00ff0000) >>  8)  \
+      | (((x) & 0x0000ff00) <<  8)  \
+      | (((x) & 0x000000ff) << 24))
+#define bswap_64(x) \
+     (  (((x) & 0xff00000000000000ull) >> 56)  \
+      | (((x) & 0x00ff000000000000ull) >> 40)  \
+      | (((x) & 0x0000ff0000000000ull) >> 24)  \
+      | (((x) & 0x000000ff00000000ull) >> 8)   \
+      | (((x) & 0x00000000ff000000ull) << 8)   \
+      | (((x) & 0x0000000000ff0000ull) << 24)  \
+      | (((x) & 0x000000000000ff00ull) << 40)  \
+      | (((x) & 0x00000000000000ffull) << 56))
+
+#else /* !__XEN__ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <byteswap.h>
+#include <xen/elfnote.h>
+#include <xen/libelf.h>
+
+#include "xenctrl.h"
+#include "xc_private.h"
+
+#define elf_msg(elf, fmt, args ... ) \
+       if (elf->log && elf->verbose) fprintf(elf->log, fmt , ## args )
+#define elf_err(elf, fmt, args ... ) do {                 \
+       if (elf->log)                                     \
+            fprintf(elf->log, fmt , ## args );            \
+        xc_set_error(XC_INVALID_KERNEL, fmt , ## args );  \
+       } while (0)
+
+#endif
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/libelf-relocate.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/libelf-relocate.c       Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,345 @@
+/*
+ * ELF relocation code (not used by xen kernel right now).
+ */
+
+#include "libelf-private.h"
+
+/* ------------------------------------------------------------------------ */
+
+static const char *rel_names_i386[] = {
+    "R_386_NONE",
+    "R_386_32",
+    "R_386_PC32",
+    "R_386_GOT32",
+    "R_386_PLT32",
+    "R_386_COPY",
+    "R_386_GLOB_DAT",
+    "R_386_JMP_SLOT",
+    "R_386_RELATIVE",
+    "R_386_GOTOFF",
+    "R_386_GOTPC",
+    "R_386_32PLT",
+    "R_386_TLS_TPOFF",
+    "R_386_TLS_IE",
+    "R_386_TLS_GOTIE",
+    "R_386_TLS_LE",
+    "R_386_TLS_GD",
+    "R_386_TLS_LDM",
+    "R_386_16",
+    "R_386_PC16",
+    "R_386_8",
+    "R_386_PC8",
+    "R_386_TLS_GD_32",
+    "R_386_TLS_GD_PUSH",
+    "R_386_TLS_GD_CALL",
+    "R_386_TLS_GD_POP",
+    "R_386_TLS_LDM_32",
+    "R_386_TLS_LDM_PUSH",
+    "R_386_TLS_LDM_CALL",
+    "R_386_TLS_LDM_POP",
+    "R_386_TLS_LDO_32",
+    "R_386_TLS_IE_32",
+    "R_386_TLS_LE_32",
+    "R_386_TLS_DTPMOD32",
+    "R_386_TLS_DTPOFF32",
+    "R_386_TLS_TPOFF32",
+};
+
+static int elf_reloc_i386(struct elf_binary *elf, int type,
+                         uint64_t addr, uint64_t value)
+{
+    void *ptr = elf_get_ptr(elf, addr);
+    uint32_t *u32;
+
+    switch (type)
+    {
+    case 1 /* R_386_32 */ :
+       u32 = ptr;
+       *u32 += elf->reloc_offset;
+       break;
+    case 2 /* R_386_PC32 */ :
+       /* nothing */
+       break;
+    default:
+       return -1;
+    }
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static const char *rel_names_x86_64[] = {
+    "R_X86_64_NONE",
+    "R_X86_64_64",
+    "R_X86_64_PC32",
+    "R_X86_64_GOT32",
+    "R_X86_64_PLT32",
+    "R_X86_64_COPY",
+    "R_X86_64_GLOB_DAT",
+    "R_X86_64_JUMP_SLOT",
+    "R_X86_64_RELATIVE",
+    "R_X86_64_GOTPCREL",
+    "R_X86_64_32",
+    "R_X86_64_32S",
+    "R_X86_64_16",
+    "R_X86_64_PC16",
+    "R_X86_64_8",
+    "R_X86_64_PC8",
+    "R_X86_64_DTPMOD64",
+    "R_X86_64_DTPOFF64",
+    "R_X86_64_TPOFF64",
+    "R_X86_64_TLSGD",
+    "R_X86_64_TLSLD",
+    "R_X86_64_DTPOFF32",
+    "R_X86_64_GOTTPOFF",
+    "R_X86_64_TPOFF32",
+};
+
+static int elf_reloc_x86_64(struct elf_binary *elf, int type,
+                           uint64_t addr, uint64_t value)
+{
+    void *ptr = elf_get_ptr(elf, addr);
+    uint64_t *u64;
+    uint32_t *u32;
+    int32_t *s32;
+
+    switch (type)
+    {
+    case 1 /* R_X86_64_64 */ :
+       u64 = ptr;
+       value += elf->reloc_offset;
+       *u64 = value;
+       break;
+    case 2 /* R_X86_64_PC32 */ :
+       u32 = ptr;
+       *u32 = value - addr;
+       if (*u32 != (uint32_t) (value - addr))
+       {
+           elf_err(elf, "R_X86_64_PC32 overflow: 0x%" PRIx32 " != 0x%" PRIx32 
"\n",
+                   *u32, (uint32_t) (value - addr));
+           return -1;
+       }
+       break;
+    case 10 /* R_X86_64_32 */ :
+       u32 = ptr;
+       value += elf->reloc_offset;
+       *u32 = value;
+       if (*u32 != value)
+       {
+           elf_err(elf, "R_X86_64_32 overflow: 0x%" PRIx32 " != 0x%" PRIx64 
"\n",
+                   *u32, value);
+           return -1;
+       }
+       break;
+    case 11 /* R_X86_64_32S */ :
+       s32 = ptr;
+       value += elf->reloc_offset;
+       *s32 = value;
+       if (*s32 != (int64_t) value)
+       {
+           elf_err(elf, "R_X86_64_32S overflow: 0x%" PRIx32 " != 0x%" PRIx64 
"\n",
+                   *s32, (int64_t) value);
+           return -1;
+       }
+       break;
+    default:
+       return -1;
+    }
+    return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static struct relocs {
+    const char **names;
+    int count;
+    int (*func) (struct elf_binary * elf, int type, uint64_t addr,
+                uint64_t value);
+} relocs[] =
+/* *INDENT-OFF* */
+{
+    [EM_386] = {
+       .names = rel_names_i386,
+       .count = sizeof(rel_names_i386) / sizeof(rel_names_i386[0]),
+       .func = elf_reloc_i386,
+    },
+    [EM_X86_64] = {
+       .names = rel_names_x86_64,
+       .count = sizeof(rel_names_x86_64) / sizeof(rel_names_x86_64[0]),
+       .func = elf_reloc_x86_64,
+    }
+};
+/* *INDENT-ON* */
+
+/* ------------------------------------------------------------------------ */
+
+static const char *rela_name(int machine, int type)
+{
+    if (machine > sizeof(relocs) / sizeof(relocs[0]))
+       return "unknown mach";
+    if (!relocs[machine].names)
+       return "unknown mach";
+    if (type > relocs[machine].count)
+       return "unknown rela";
+    return relocs[machine].names[type];
+}
+
+static int elf_reloc_section(struct elf_binary *elf,
+                            const elf_shdr * rels,
+                            const elf_shdr * sect, const elf_shdr * syms)
+{
+    const void *ptr, *end;
+    const elf_shdr *shdr;
+    const elf_rela *rela;
+    const elf_rel *rel;
+    const elf_sym *sym;
+    uint64_t s_type;
+    uint64_t r_offset;
+    uint64_t r_info;
+    uint64_t r_addend;
+    int r_type, r_sym;
+    size_t rsize;
+    uint64_t shndx, sbase, addr, value;
+    const char *sname;
+    int machine;
+
+    machine = elf_uval(elf, elf->ehdr, e_machine);
+    if (machine >= sizeof(relocs) / sizeof(relocs[0]) ||
+       NULL == relocs[machine].func)
+    {
+       elf_err(elf, "%s: can't handle machine %d\n",
+               __FUNCTION__, machine);
+       return -1;
+    }
+    if (elf_swap(elf))
+    {
+       elf_err(elf, "%s: non-native byte order, relocation not supported\n",
+               __FUNCTION__);
+       return -1;
+    }
+
+    s_type = elf_uval(elf, rels, sh_type);
+    rsize = (SHT_REL == s_type) ? elf_size(elf, rel) : elf_size(elf, rela);
+    ptr = elf_section_start(elf, rels);
+    end = elf_section_end(elf, rels);
+
+    for (; ptr < end; ptr += rsize)
+    {
+       switch (s_type)
+       {
+       case SHT_REL:
+           rel = ptr;
+           r_offset = elf_uval(elf, rel, r_offset);
+           r_info = elf_uval(elf, rel, r_info);
+           r_addend = 0;
+           break;
+       case SHT_RELA:
+           rela = ptr;
+           r_offset = elf_uval(elf, rela, r_offset);
+           r_info = elf_uval(elf, rela, r_info);
+           r_addend = elf_uval(elf, rela, r_addend);
+           break;
+       default:
+           /* can't happen */
+           return -1;
+       }
+       if (elf_64bit(elf))
+       {
+           r_type = ELF64_R_TYPE(r_info);
+           r_sym = ELF64_R_SYM(r_info);
+       }
+       else
+       {
+           r_type = ELF32_R_TYPE(r_info);
+           r_sym = ELF32_R_SYM(r_info);
+       }
+
+       sym = elf_sym_by_index(elf, r_sym);
+       shndx = elf_uval(elf, sym, st_shndx);
+       switch (shndx)
+       {
+       case SHN_UNDEF:
+           sname = "*UNDEF*";
+           sbase = 0;
+           break;
+       case SHN_COMMON:
+           elf_err(elf, "%s: invalid section: %" PRId64 "\n",
+                   __FUNCTION__, shndx);
+           return -1;
+       case SHN_ABS:
+           sname = "*ABS*";
+           sbase = 0;
+           break;
+       default:
+           shdr = elf_shdr_by_index(elf, shndx);
+           if (NULL == shdr)
+           {
+               elf_err(elf, "%s: invalid section: %" PRId64 "\n",
+                       __FUNCTION__, shndx);
+               return -1;
+           }
+           sname = elf_section_name(elf, shdr);
+           sbase = elf_uval(elf, shdr, sh_addr);
+       }
+
+       addr = r_offset;
+       value = elf_uval(elf, sym, st_value);
+       value += r_addend;
+
+       if (elf->log && elf->verbose > 1)
+       {
+           uint64_t st_name = elf_uval(elf, sym, st_name);
+           const char *name = st_name ? elf->sym_strtab + st_name : "*NONE*";
+
+           elf_msg(elf,
+                   "%s: type %s [%d], off 0x%" PRIx64 ", add 0x%" PRIx64 ","
+                   " sym %s [0x%" PRIx64 "], sec %s [0x%" PRIx64 "]"
+                   "  ->  addr 0x%" PRIx64 " value 0x%" PRIx64 "\n",
+                   __FUNCTION__, rela_name(machine, r_type), r_type, r_offset,
+                   r_addend, name, elf_uval(elf, sym, st_value), sname, sbase,
+                   addr, value);
+       }
+
+       if (-1 == relocs[machine].func(elf, r_type, addr, value))
+       {
+           elf_err(elf, "%s: unknown/unsupported reloc type %s [%d]\n",
+                   __FUNCTION__, rela_name(machine, r_type), r_type);
+           return -1;
+       }
+    }
+    return 0;
+}
+
+int elf_reloc(struct elf_binary *elf)
+{
+    const elf_shdr *rels, *sect, *syms;
+    uint64_t i, count, type;
+
+    count = elf_shdr_count(elf);
+    for (i = 0; i < count; i++)
+    {
+       rels = elf_shdr_by_index(elf, i);
+       type = elf_uval(elf, rels, sh_type);
+       if (type != SHT_REL && type != SHT_RELA)
+           continue;
+
+       sect = elf_shdr_by_index(elf, elf_uval(elf, rels, sh_info));
+       syms = elf_shdr_by_index(elf, elf_uval(elf, rels, sh_link));
+       if (NULL == sect || NULL == syms)
+           continue;
+
+       if (!(elf_uval(elf, sect, sh_flags) & SHF_ALLOC))
+       {
+           elf_msg(elf, "%s: relocations for %s, skipping\n",
+                   __FUNCTION__, elf_section_name(elf, sect));
+           continue;
+       }
+
+       elf_msg(elf, "%s: relocations for %s @ 0x%" PRIx64 "\n",
+               __FUNCTION__, elf_section_name(elf, sect),
+               elf_uval(elf, sect, sh_addr));
+       if (0 != elf_reloc_section(elf, rels, sect, syms))
+           return -1;
+    }
+    return 0;
+}
diff -r b111908dd70b -r db3d03dfe92f xen/common/libelf/libelf-tools.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/common/libelf/libelf-tools.c  Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,225 @@
+/*
+ * various helper functions to access elf structures
+ */
+
+#include "libelf-private.h"
+
+/* ------------------------------------------------------------------------ */
+
+uint64_t elf_access_unsigned(struct elf_binary * elf, const void *ptr,
+                            off_t offset, size_t size)
+{
+    int need_swap = elf_swap(elf);
+    const uint8_t *u8;
+    const uint16_t *u16;
+    const uint32_t *u32;
+    const uint64_t *u64;
+
+    switch (size)
+    {
+    case 1:
+       u8 = ptr + offset;
+       return *u8;
+    case 2:
+       u16 = ptr + offset;
+       return need_swap ? bswap_16(*u16) : *u16;
+    case 4:
+       u32 = ptr + offset;
+       return need_swap ? bswap_32(*u32) : *u32;
+    case 8:
+       u64 = ptr + offset;
+       return need_swap ? bswap_64(*u64) : *u64;
+    default:
+       return 0;
+    }
+}
+
+int64_t elf_access_signed(struct elf_binary *elf, const void *ptr,
+                         off_t offset, size_t size)
+{
+    int need_swap = elf_swap(elf);
+    const int8_t *s8;
+    const int16_t *s16;
+    const int32_t *s32;
+    const int64_t *s64;
+
+    switch (size)
+    {
+    case 1:
+       s8 = ptr + offset;
+       return *s8;
+    case 2:
+       s16 = ptr + offset;
+       return need_swap ? bswap_16(*s16) : *s16;
+    case 4:
+       s32 = ptr + offset;
+       return need_swap ? bswap_32(*s32) : *s32;
+    case 8:
+       s64 = ptr + offset;
+       return need_swap ? bswap_64(*s64) : *s64;
+    default:
+       return 0;
+    }
+}
+
+uint64_t elf_round_up(struct elf_binary *elf, uint64_t addr)
+{
+    int elf_round = (elf_64bit(elf) ? 8 : 4) - 1;
+
+    return (addr + elf_round) & ~elf_round;
+}
+
+/* ------------------------------------------------------------------------ */
+
+int elf_shdr_count(struct elf_binary *elf)
+{
+    return elf_uval(elf, elf->ehdr, e_shnum);
+}
+
+int elf_phdr_count(struct elf_binary *elf)
+{
+    return elf_uval(elf, elf->ehdr, e_phnum);
+}
+
+const elf_shdr *elf_shdr_by_name(struct elf_binary *elf, const char *name)
+{
+    uint64_t count = elf_shdr_count(elf);
+    const elf_shdr *shdr;
+    const char *sname;
+    int i;
+
+    for (i = 0; i < count; i++) {
+       shdr = elf_shdr_by_index(elf, i);
+       sname = elf_section_name(elf, shdr);
+       if (sname && 0 == strcmp(sname, name))
+           return shdr;
+    }
+    return NULL;
+}
+
+const elf_shdr *elf_shdr_by_index(struct elf_binary *elf, int index)
+{
+    uint64_t count = elf_shdr_count(elf);
+    const void *ptr = NULL;
+
+    if (index < count)
+       ptr = elf->image
+           + elf_uval(elf, elf->ehdr, e_shoff)
+           + elf_uval(elf, elf->ehdr, e_shentsize) * index;
+    return ptr;
+}
+
+const elf_phdr *elf_phdr_by_index(struct elf_binary *elf, int index)
+{
+    uint64_t count = elf_uval(elf, elf->ehdr, e_phnum);
+    const void *ptr = NULL;
+
+    if (index < count)
+       ptr = elf->image
+           + elf_uval(elf, elf->ehdr, e_phoff)
+           + elf_uval(elf, elf->ehdr, e_phentsize) * index;
+    return ptr;
+}
+
+const char *elf_section_name(struct elf_binary *elf, const elf_shdr * shdr)
+{
+    if (NULL == elf->sec_strtab)
+       return "unknown";
+    return elf->sec_strtab + elf_uval(elf, shdr, sh_name);
+}
+
+const void *elf_section_start(struct elf_binary *elf, const elf_shdr * shdr)
+{
+    return elf->image + elf_uval(elf, shdr, sh_offset);
+}
+
+const void *elf_section_end(struct elf_binary *elf, const elf_shdr * shdr)
+{
+    return elf->image
+       + elf_uval(elf, shdr, sh_offset) + elf_uval(elf, shdr, sh_size);
+}
+
+const elf_sym *elf_sym_by_name(struct elf_binary *elf, const char *symbol)
+{
+    const void *ptr = elf_section_start(elf, elf->sym_tab);
+    const void *end = elf_section_end(elf, elf->sym_tab);
+    const elf_sym *sym;
+    uint64_t info, name;
+
+    for (; ptr < end; ptr += elf_size(elf, sym))
+    {
+       sym = ptr;
+       info = elf_uval(elf, sym, st_info);
+       name = elf_uval(elf, sym, st_name);
+       if (ELF32_ST_BIND(info) != STB_GLOBAL)
+           continue;
+       if (strcmp(elf->sym_strtab + name, symbol) != 0)
+           continue;
+       return sym;
+    }
+    return NULL;
+}
+
+const elf_sym *elf_sym_by_index(struct elf_binary *elf, int index)
+{
+    const void *ptr = elf_section_start(elf, elf->sym_tab);
+    const elf_sym *sym;
+
+    sym = ptr + index * elf_size(elf, sym);
+    return sym;
+}
+
+const char *elf_note_name(struct elf_binary *elf, const elf_note * note)
+{
+    return (void *)note + elf_size(elf, note);
+}
+
+const void *elf_note_desc(struct elf_binary *elf, const elf_note * note)
+{
+    int namesz = (elf_uval(elf, note, namesz) + 3) & ~3;
+
+    return (void *)note + elf_size(elf, note) + namesz;
+}
+
+uint64_t elf_note_numeric(struct elf_binary *elf, const elf_note * note)
+{
+    const void *desc = elf_note_desc(elf, note);
+    int descsz = elf_uval(elf, note, descsz);
+
+    switch (descsz)
+    {
+    case 1:
+    case 2:
+    case 4:
+    case 8:
+       return elf_access_unsigned(elf, desc, 0, descsz);
+    default:
+       return 0;
+    }
+}
+const elf_note *elf_note_next(struct elf_binary *elf, const elf_note * note)
+{
+    int namesz = (elf_uval(elf, note, namesz) + 3) & ~3;
+    int descsz = (elf_uval(elf, note, descsz) + 3) & ~3;
+
+    return (void *)note + elf_size(elf, note) + namesz + descsz;
+}
+
+/* ------------------------------------------------------------------------ */
+
+int elf_is_elfbinary(const void *image)
+{
+    const Elf32_Ehdr *ehdr = image;
+
+    if (IS_ELF(*ehdr))
+       return 1;
+    return 0;
+}
+
+int elf_phdr_is_loadable(struct elf_binary *elf, const elf_phdr * phdr)
+{
+    uint64_t p_type = elf_uval(elf, phdr, p_type);
+    uint64_t p_flags = elf_uval(elf, phdr, p_flags);
+
+    return ((p_type == PT_LOAD) && (p_flags & (PF_W | PF_X)) != 0);
+}
diff -r b111908dd70b -r db3d03dfe92f xen/include/public/elfstructs.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/public/elfstructs.h   Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,527 @@
+#ifndef __XEN_PUBLIC_ELFSTRUCTS_H__
+#define __XEN_PUBLIC_ELFSTRUCTS_H__ 1
+/*
+ * Copyright (c) 1995, 1996 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.
+ */
+
+typedef uint8_t                Elf_Byte;
+
+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 */
+
+typedef uint64_t       Elf64_Addr;
+typedef uint64_t       Elf64_Off;
+typedef int32_t                Elf64_Shalf;
+
+typedef int32_t                Elf64_Sword;
+typedef uint32_t       Elf64_Word;
+
+typedef int64_t                Elf64_Sxword;
+typedef uint64_t       Elf64_Xword;
+
+typedef uint32_t       Elf64_Half;
+typedef uint16_t       Elf64_Quarter;
+
+/*
+ * e_ident[] identification indexes
+ * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
+ */
+#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 ID */
+#define EI_ABIVERSION  8               /* ABI 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[] Operating System/ABI */
+#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 common IA32 ABI */
+#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_ARM           97      /* ARM */
+#define ELFOSABI_STANDALONE    255     /* Standalone (embedded) application */
+
+/* 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;
+
+typedef struct {
+       unsigned char   e_ident[EI_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_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_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 */
+#define EM_486         6               /* Intel 80486 - unused? */
+#define EM_860         7               /* Intel 80860 */
+#define EM_MIPS                8               /* MIPS R3000 Big-Endian only */
+/*
+ * Don't know if EM_MIPS_RS4_BE,
+ * EM_SPARC64, EM_PARISC,
+ * or EM_PPC are ABI compliant
+ */
+#define EM_MIPS_RS4_BE 10              /* MIPS R4000 Big-Endian */
+#define EM_SPARC64     11              /* SPARC v9 64-bit unoffical */
+#define EM_PARISC      15              /* HPPA */
+#define EM_SPARC32PLUS 18              /* Enhanced instruction set SPARC */
+#define EM_PPC         20              /* PowerPC */
+#define EM_PPC64       21              /* PowerPC 64-bit */
+#define EM_ARM         40              /* Advanced RISC Machines ARM */
+#define EM_ALPHA       41              /* DEC ALPHA */
+#define EM_SPARCV9     43              /* SPARC version 9 */
+#define EM_ALPHA_EXP   0x9026          /* DEC ALPHA */
+#define EM_IA_64       50              /* Intel Merced */
+#define EM_X86_64      62              /* AMD x86-64 architecture */
+#define EM_VAX         75              /* DEC VAX */
+
+/* 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;
+
+typedef struct {
+       Elf64_Half      sh_name;        /* section name */
+       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;
+
+/* 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_ABS                0xfff1          /* absolute value */
+#define SHN_COMMON     0xfff2          /* common symbol */
+#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_NUM                12              /* number of section types */
+#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_DATA        ".data"                /* 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_GOT         ".got"         /* global offset table */
+#define ELF_HASH        ".hash"                /* symbol hash table */
+#define ELF_INIT        ".init"                /* initialization code */
+#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_SHSTRTAB    ".shstrtab"    /* section header string table */
+#define ELF_STRTAB      ".strtab"      /* string table */
+#define ELF_SYMTAB      ".symtab"      /* symbol table */
+#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_MASKPROC   0xf0000000      /* reserved bits for processor */
+                                       /*  specific section attributes */
+
+/* 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;
+
+typedef struct {
+       Elf64_Half      st_name;        /* Symbol name index in str table */
+       Elf_Byte        st_info;        /* type / binding attrs */
+       Elf_Byte        st_other;       /* unused */
+       Elf64_Quarter   st_shndx;       /* section index of symbol */
+       Elf64_Xword     st_value;       /* value of symbol */
+       Elf64_Xword     st_size;        /* size of symbol */
+} Elf64_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 ELF64_ST_BIND(x)       ((x) >> 4)
+#define ELF64_ST_TYPE(x)       (((unsigned int) x) & 0xf)
+#define ELF64_ST_INFO(b,t)     (((b) << 4) + ((t) & 0xf))
+
+/* 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_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_LOPROC     13              /* reserved range for processor */
+#define STT_HIPROC     15              /*  specific symbol types */
+
+/* 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))
+
+typedef struct {
+       Elf64_Xword     r_offset;       /* where to do it */
+       Elf64_Xword     r_info;         /* index & type of relocation */
+} Elf64_Rel;
+
+typedef struct {
+       Elf64_Xword     r_offset;       /* where to do it */
+       Elf64_Xword     r_info;         /* index & type of relocation */
+       Elf64_Sxword    r_addend;       /* adjustment value */
+} Elf64_Rela;
+
+#define        ELF64_R_SYM(info)       ((info) >> 32)
+#define        ELF64_R_TYPE(info)      ((info) & 0xFFFFFFFF)
+#define ELF64_R_INFO(s,t)      (((s) << 32) + (u_int32_t)(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;
+
+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;
+
+/* 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_NUM         7               /* Number of 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_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;
+
+typedef struct {
+       Elf64_Xword     d_tag;          /* controls meaning of d_val */
+       union {
+               Elf64_Addr      d_ptr;
+               Elf64_Xword     d_val;
+       } d_un;
+} Elf64_Dyn;
+
+/* 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              /* Bind now regardless of env setting */
+#define DT_NUM         25              /* Number used. */
+#define DT_LOPROC      0x70000000      /* reserved range for processor */
+#define DT_HIPROC      0x7fffffff      /*  specific dynamic array tags */
+
+/* Standard ELF hashing function */
+unsigned int elf_hash(const unsigned char *name);
+
+/*
+ * Note Definitions
+ */
+typedef struct {
+       Elf32_Word namesz;
+       Elf32_Word descsz;
+       Elf32_Word type;
+} Elf32_Note;
+
+typedef struct {
+       Elf64_Half namesz;
+       Elf64_Half descsz;
+       Elf64_Half type;
+} Elf64_Note;
+
+
+#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 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_Nhdr       Elf32_Nhdr
+#define Elf_Note       Elf32_Note
+
+#define ELF_R_SYM      ELF32_R_SYM
+#define ELF_R_TYPE     ELF32_R_TYPE
+#define ELF_R_INFO     ELF32_R_INFO
+#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
+#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_Nhdr       Elf64_Nhdr
+#define Elf_Note       Elf64_Note
+
+#define ELF_R_SYM      ELF64_R_SYM
+#define ELF_R_TYPE     ELF64_R_TYPE
+#define ELF_R_INFO     ELF64_R_INFO
+#define ELFCLASS       ELFCLASS64
+
+#define ELF_ST_BIND    ELF64_ST_BIND
+#define ELF_ST_TYPE    ELF64_ST_TYPE
+#define ELF_ST_INFO    ELF64_ST_INFO
+
+#define AuxInfo                Aux64Info
+#endif
+
+#endif /* __XEN_PUBLIC_ELFSTRUCTS_H__ */
diff -r b111908dd70b -r db3d03dfe92f xen/include/public/libelf.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/public/libelf.h       Thu Jan 25 22:16:52 2007 +0000
@@ -0,0 +1,238 @@
+#ifndef __XC_LIBELF__
+#define __XC_LIBELF__ 1
+
+#ifdef __XEN__
+
+#include <xen/inttypes.h>
+#include <public/features.h>
+typedef uint64_t off_t;
+
+#define LITTLE_ENDIAN 1234
+#define BIG_ENDIAN    4321
+#if defined(__i386__) || defined(__x86_64) || defined(__ia64__)
+#define BYTE_ORDER LITTLE_ENDIAN
+#elif defined(__powerpc__)
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+
+#else /* !__XEN__ */
+
+#include <stddef.h>
+#include <inttypes.h>
+
+#endif
+
+#undef ELFSIZE
+#include "elfstructs.h"
+#include "features.h"
+
+/* ------------------------------------------------------------------------ */
+
+typedef union {
+    Elf32_Ehdr e32;
+    Elf64_Ehdr e64;
+} elf_ehdr;
+
+typedef union {
+    Elf32_Phdr e32;
+    Elf64_Phdr e64;
+} elf_phdr;
+
+typedef union {
+    Elf32_Shdr e32;
+    Elf64_Shdr e64;
+} elf_shdr;
+
+typedef union {
+    Elf32_Sym e32;
+    Elf64_Sym e64;
+} elf_sym;
+
+typedef union {
+    Elf32_Rel e32;
+    Elf64_Rel e64;
+} elf_rel;
+
+typedef union {
+    Elf32_Rela e32;
+    Elf64_Rela e64;
+} elf_rela;
+
+typedef union {
+    Elf32_Note e32;
+    Elf64_Note e64;
+} elf_note;
+
+struct elf_binary {
+    /* elf binary */
+    const char *image;
+    size_t size;
+    char class;
+    char data;
+
+    const elf_ehdr *ehdr;
+    const char *sec_strtab;
+    const elf_shdr *sym_tab;
+    const char *sym_strtab;
+
+    /* loaded to */
+    char *dest;
+    uint64_t pstart;
+    uint64_t pend;
+    uint64_t reloc_offset;
+
+#ifndef __XEN__
+    /* misc */
+    FILE *log;
+#endif
+    int verbose;
+};
+
+/* ------------------------------------------------------------------------ */
+/* accessing elf header fields                                              */
+
+#if !defined(BYTE_ORDER)
+# error BYTE_ORDER not defined
+#elif BYTE_ORDER == BIG_ENDIAN
+# define NATIVE_ELFDATA ELFDATA2MSB
+#elif BYTE_ORDER == LITTLE_ENDIAN
+# define NATIVE_ELFDATA ELFDATA2LSB
+#else
+# error BYTE_ORDER unknown
+#endif
+
+#define elf_32bit(elf) (ELFCLASS32 == (elf)->class)
+#define elf_64bit(elf) (ELFCLASS64 == (elf)->class)
+#define elf_msb(elf)   (ELFDATA2MSB == (elf)->data)
+#define elf_lsb(elf)   (ELFDATA2LSB == (elf)->data)
+#define elf_swap(elf)  (NATIVE_ELFDATA != (elf)->data)
+
+#define elf_uval(elf, str, elem)                       \
+       ((ELFCLASS64 == (elf)->class)                   \
+       ? elf_access_unsigned((elf), (str),             \
+               offsetof(typeof(*(str)),e64.elem),      \
+               sizeof((str)->e64.elem))                \
+       : elf_access_unsigned((elf), (str),             \
+               offsetof(typeof(*(str)),e32.elem),      \
+               sizeof((str)->e32.elem)))
+
+#define elf_sval(elf, str, elem)                       \
+       ((ELFCLASS64 == (elf)->class)                   \
+       ? elf_access_signed((elf), (str),               \
+               offsetof(typeof(*(str)),e64.elem),      \
+               sizeof((str)->e64.elem))                \
+       : elf_access_signed((elf), (str),               \
+               offsetof(typeof(*(str)),e32.elem),      \
+               sizeof((str)->e32.elem)))
+
+#define elf_size(elf, str)             \
+       ((ELFCLASS64 == (elf)->class)   \
+       ? sizeof((str)->e64)            \
+       : sizeof((str)->e32))
+
+uint64_t elf_access_unsigned(struct elf_binary *elf, const void *ptr,
+                            off_t offset, size_t size);
+int64_t elf_access_signed(struct elf_binary *elf, const void *ptr,
+                         off_t offset, size_t size);
+
+uint64_t elf_round_up(struct elf_binary *elf, uint64_t addr);
+
+/* ------------------------------------------------------------------------ */
+/* xc_libelf_tools.c                                                        */
+
+int elf_shdr_count(struct elf_binary *elf);
+int elf_phdr_count(struct elf_binary *elf);
+
+const elf_shdr *elf_shdr_by_name(struct elf_binary *elf, const char *name);
+const elf_shdr *elf_shdr_by_index(struct elf_binary *elf, int index);
+const elf_phdr *elf_phdr_by_index(struct elf_binary *elf, int index);
+
+const char *elf_section_name(struct elf_binary *elf, const elf_shdr * shdr);
+const void *elf_section_start(struct elf_binary *elf, const elf_shdr * shdr);
+const void *elf_section_end(struct elf_binary *elf, const elf_shdr * shdr);
+
+const elf_sym *elf_sym_by_name(struct elf_binary *elf, const char *symbol);
+const elf_sym *elf_sym_by_index(struct elf_binary *elf, int index);
+
+const char *elf_note_name(struct elf_binary *elf, const elf_note * note);
+const void *elf_note_desc(struct elf_binary *elf, const elf_note * note);
+uint64_t elf_note_numeric(struct elf_binary *elf, const elf_note * note);
+const elf_note *elf_note_next(struct elf_binary *elf, const elf_note * note);
+
+int elf_is_elfbinary(const void *image);
+int elf_phdr_is_loadable(struct elf_binary *elf, const elf_phdr * phdr);
+
+/* ------------------------------------------------------------------------ */
+/* xc_libelf_loader.c                                                       */
+
+int elf_init(struct elf_binary *elf, const char *image, size_t size);
+#ifdef __XEN__
+void elf_set_verbose(struct elf_binary *elf);
+#else
+void elf_set_logfile(struct elf_binary *elf, FILE * log, int verbose);
+#endif
+
+void elf_parse_binary(struct elf_binary *elf);
+void elf_load_binary(struct elf_binary *elf);
+
+void *elf_get_ptr(struct elf_binary *elf, unsigned long addr);
+uint64_t elf_lookup_addr(struct elf_binary *elf, const char *symbol);
+
+/* ------------------------------------------------------------------------ */
+/* xc_libelf_relocate.c                                                     */
+
+int elf_reloc(struct elf_binary *elf);
+
+/* ------------------------------------------------------------------------ */
+/* xc_libelf_dominfo.c                                                      */
+
+#define UNSET_ADDR          ((uint64_t)-1)
+
+struct elf_dom_parms {
+    /* raw */
+    const char *guest_info;
+    const void *elf_note_start;
+    const void *elf_note_end;
+
+    /* parsed */
+    char guest_os[16];
+    char guest_ver[16];
+    char xen_ver[16];
+    char loader[16];
+    int pae;
+    int bsd_symtab;
+    uint64_t virt_base;
+    uint64_t virt_entry;
+    uint64_t virt_hypercall;
+    uint64_t virt_hv_start_low;
+    uint64_t elf_paddr_offset;
+    uint32_t f_supported[XENFEAT_NR_SUBMAPS];
+    uint32_t f_required[XENFEAT_NR_SUBMAPS];
+
+    /* calculated */
+    uint64_t virt_offset;
+    uint64_t virt_kstart;
+    uint64_t virt_kend;
+};
+
+static inline void elf_xen_feature_set(int nr, uint32_t * addr)
+{
+    addr[nr >> 5] |= 1 << (nr & 31);
+}
+static inline int elf_xen_feature_get(int nr, uint32_t * addr)
+{
+    return !!(addr[nr >> 5] & (1 << (nr & 31)));
+}
+
+int elf_xen_parse_features(const char *features,
+                          uint32_t *supported,
+                          uint32_t *required);
+int elf_xen_parse_note(struct elf_binary *elf,
+                      struct elf_dom_parms *parms,
+                      const elf_note *note);
+int elf_xen_parse_guest_info(struct elf_binary *elf,
+                            struct elf_dom_parms *parms);
+int elf_xen_parse(struct elf_binary *elf,
+                 struct elf_dom_parms *parms);
+
+#endif /* __XC_LIBELF__ */
diff -r b111908dd70b -r db3d03dfe92f xen/include/xen/elf.h
--- a/xen/include/xen/elf.h     Thu Jan 25 18:54:25 2007 +0000
+++ b/xen/include/xen/elf.h     Thu Jan 25 22:16:52 2007 +0000
@@ -27,495 +27,7 @@
 #ifndef __XEN_ELF_H__
 #define __XEN_ELF_H__
 
-typedef u8     Elf_Byte;
-
-typedef u32    Elf32_Addr;     /* Unsigned program address */
-typedef u32    Elf32_Off;      /* Unsigned file offset */
-typedef s32    Elf32_Sword;    /* Signed large integer */
-typedef u32    Elf32_Word;     /* Unsigned large integer */
-typedef u16    Elf32_Half;     /* Unsigned medium integer */
-
-typedef u64    Elf64_Addr;
-typedef u64    Elf64_Off;
-typedef s32    Elf64_Shalf;
-
-typedef s32    Elf64_Sword;
-typedef u32    Elf64_Word;
-
-typedef s64    Elf64_Sxword;
-typedef u64    Elf64_Xword;
-
-typedef u32    Elf64_Half;
-typedef u16    Elf64_Quarter;
-
-/*
- * e_ident[] identification indexes 
- * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
- */
-#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 ID */
-#define EI_ABIVERSION  8               /* ABI 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[] Operating System/ABI */
-#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 common IA32 ABI */
-#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_ARM           97      /* ARM */
-#define ELFOSABI_STANDALONE    255     /* Standalone (embedded) application */
-
-/* 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;
-
-typedef struct {
-       unsigned char   e_ident[EI_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_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_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 */
-#define EM_486         6               /* Intel 80486 - unused? */
-#define EM_860         7               /* Intel 80860 */
-#define EM_MIPS                8               /* MIPS R3000 Big-Endian only */
-/* 
- * Don't know if EM_MIPS_RS4_BE,
- * EM_SPARC64, EM_PARISC,
- * or EM_PPC are ABI compliant
- */
-#define EM_MIPS_RS4_BE 10              /* MIPS R4000 Big-Endian */
-#define EM_SPARC64     11              /* SPARC v9 64-bit unoffical */
-#define EM_PARISC      15              /* HPPA */
-#define EM_SPARC32PLUS 18              /* Enhanced instruction set SPARC */
-#define EM_PPC         20              /* PowerPC */
-#define EM_PPC64       21              /* PowerPC 64-bit */
-#define EM_ARM         40              /* Advanced RISC Machines ARM */
-#define EM_ALPHA       41              /* DEC ALPHA */
-#define EM_SPARCV9     43              /* SPARC version 9 */
-#define EM_ALPHA_EXP   0x9026          /* DEC ALPHA */
-#define EM_IA_64       50              /* Intel Merced */
-#define EM_X86_64      62              /* AMD x86-64 architecture */
-#define EM_VAX         75              /* DEC VAX */
-
-/* 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;
-
-typedef struct {
-       Elf64_Half      sh_name;        /* section name */
-       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;
-
-/* 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_ABS                0xfff1          /* absolute value */
-#define SHN_COMMON     0xfff2          /* common symbol */
-#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_NUM                12              /* number of section types */
-#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_DATA        ".data"                /* 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_GOT         ".got"         /* global offset table */
-#define ELF_HASH        ".hash"                /* symbol hash table */
-#define ELF_INIT        ".init"                /* initialization code */
-#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_SHSTRTAB    ".shstrtab"    /* section header string table */
-#define ELF_STRTAB      ".strtab"      /* string table */
-#define ELF_SYMTAB      ".symtab"      /* symbol table */
-#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_MASKPROC   0xf0000000      /* reserved bits for processor */
-                                       /*  specific section attributes */
-
-/* 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;
-
-typedef struct {
-       Elf64_Half      st_name;        /* Symbol name index in str table */
-       Elf_Byte        st_info;        /* type / binding attrs */
-       Elf_Byte        st_other;       /* unused */
-       Elf64_Quarter   st_shndx;       /* section index of symbol */
-       Elf64_Xword     st_value;       /* value of symbol */
-       Elf64_Xword     st_size;        /* size of symbol */
-} Elf64_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 ELF64_ST_BIND(x)       ((x) >> 4)
-#define ELF64_ST_TYPE(x)       (((unsigned int) x) & 0xf)
-#define ELF64_ST_INFO(b,t)     (((b) << 4) + ((t) & 0xf))
-
-/* 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_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_LOPROC     13              /* reserved range for processor */
-#define STT_HIPROC     15              /*  specific symbol types */
-
-/* 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))
-
-typedef struct {
-       Elf64_Xword     r_offset;       /* where to do it */
-       Elf64_Xword     r_info;         /* index & type of relocation */
-} Elf64_Rel;
-
-typedef struct {
-       Elf64_Xword     r_offset;       /* where to do it */
-       Elf64_Xword     r_info;         /* index & type of relocation */
-       Elf64_Sxword    r_addend;       /* adjustment value */
-} Elf64_Rela;
-
-#define        ELF64_R_SYM(info)       ((info) >> 32)
-#define        ELF64_R_TYPE(info)      ((info) & 0xFFFFFFFF)
-#define ELF64_R_INFO(s,t)      (((s) << 32) + (u32)(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;
-
-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;
-
-/* 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_NUM         7               /* Number of 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_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;
-
-typedef struct {
-       Elf64_Xword     d_tag;          /* controls meaning of d_val */
-       union {
-               Elf64_Addr      d_ptr;
-               Elf64_Xword     d_val;
-       } d_un;
-} Elf64_Dyn;
-
-/* 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              /* Bind now regardless of env setting */
-#define DT_NUM         25              /* Number used. */
-#define DT_LOPROC      0x70000000      /* reserved range for processor */
-#define DT_HIPROC      0x7fffffff      /*  specific dynamic array tags */
-       
-/* Standard ELF hashing function */
-unsigned int elf_hash(const unsigned char *name);
-
-/*
- * Note Definitions
- */
-
-typedef struct {
-       u32 namesz;
-       u32 descsz;
-       u32 type;
-} Elf_Note; /* same format for both 32-bit and 64-bit ELF */
-
-#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 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_Nhdr       Elf32_Nhdr
-
-#define ELF_R_SYM      ELF32_R_SYM
-#define ELF_R_TYPE     ELF32_R_TYPE
-#define ELF_R_INFO     ELF32_R_INFO
-#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
-#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_Nhdr       Elf64_Nhdr
-
-#define ELF_R_SYM      ELF64_R_SYM
-#define ELF_R_TYPE     ELF64_R_TYPE
-#define ELF_R_INFO     ELF64_R_INFO
-#define ELFCLASS       ELFCLASS64
-
-#define ELF_ST_BIND    ELF64_ST_BIND
-#define ELF_ST_TYPE    ELF64_ST_TYPE
-#define ELF_ST_INFO    ELF64_ST_INFO
-
-#define AuxInfo                Aux64Info
-#endif
+#include <public/elfstructs.h>
 
 #define ELFNOTE_ALIGN(_n_) (((_n_)+3)&~3)
 #define ELFNOTE_NAME(_n_) ((char*)(_n_) + sizeof(*(_n_)))

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