elf-powerpc.h

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/*-
 * Copyright (c) 1996-1997 John D. Polstra.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/powerpc/include/elf.h,v 1.16 2004/08/02 19:12:17 dfr Exp $
 */

#ifndef _MACHINE_ELF_H_
#define _MACHINE_ELF_H_ 1

/*
 * ELF definitions for the powerpc architecture.
 */

#ifdef _REACTOS_ELF_MACHINE_IS_TARGET

#ifndef __ELF_WORD_SIZE
#define __ELF_WORD_SIZE 32  /* Used by <elf/generic.h> */
#endif

#include <elf/generic.h>

#define ELF_ARCH    EM_386

#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486)

/*
 * Auxiliary vector entries for passing information to the interpreter.
 *
 * The powerpc supplement to the SVR4 ABI specification names this "auxv_t",
 * but POSIX lays claim to all symbols ending with "_t".
 */

typedef struct {    /* Auxiliary vector entry on initial stack */
    int a_type;         /* Entry type. */
    union {
        long    a_val;      /* Integer value. */
        void    *a_ptr;     /* Address. */
        void    (*a_fcn)(void); /* Function pointer (not used). */
    } a_un;
} Elf32_Auxinfo;

#if __ELF_WORD_SIZE == 64
/* Fake for amd64 loader support */
typedef struct {
    int fake;
} Elf64_Auxinfo;
#endif

__ElfType(Auxinfo);

/* Values for a_type. */
#define AT_NULL     0   /* Terminates the vector. */
#define AT_IGNORE   1   /* Ignored entry. */
#define AT_EXECFD   2   /* File descriptor of program to load. */
#define AT_PHDR     3   /* Program header of program already loaded. */
#define AT_PHENT    4   /* Size of each program header entry. */
#define AT_PHNUM    5   /* Number of program header entries. */
#define AT_PAGESZ   6   /* Page size in bytes. */
#define AT_BASE     7   /* Interpreter's base address. */
#define AT_FLAGS    8   /* Flags (unused for powerpc). */
#define AT_ENTRY    9   /* Where interpreter should transfer control. */

/*
 * The following non-standard values are used for passing information
 * from John Polstra's testbed program to the dynamic linker.  These
 * are expected to go away soon.
 *
 * Unfortunately, these overlap the Linux non-standard values, so they
 * must not be used in the same context.
 */
#define AT_BRK      10  /* Starting point for sbrk and brk. */
#define AT_DEBUG    11  /* Debugging level. */

/*
 * The following non-standard values are used in Linux ELF binaries.
 */
#define AT_NOTELF   10  /* Program is not ELF ?? */
#define AT_UID      11  /* Real uid. */
#define AT_EUID     12  /* Effective uid. */
#define AT_GID      13  /* Real gid. */
#define AT_EGID     14  /* Effective gid. */

#define AT_COUNT    15  /* Count of defined aux entry types. */

/* Define "machine" characteristics */
#define ELF_TARG_CLASS  ELFCLASS32
#define ELF_TARG_DATA   ELFDATA2LSB
#define ELF_TARG_MACH   EM_386
#define ELF_TARG_VER    1

#endif /* _REACTOS_ELF_MACHINE_IS_TARGET */

/*
 * Relocation types.
 */

#define R_PPC_NONE            0
#define R_PPC_ADDR32          1
#define R_PPC_ADDR24          2
#define R_PPC_ADDR16          3
#define R_PPC_ADDR16_LO       4
#define R_PPC_ADDR16_HI       5
#define R_PPC_ADDR16_HA       6
#define R_PPC_ADDR14          7
#define R_PPC_ADDR14_BRTAKEN  8
#define R_PPC_ADDR14_BRNTAKEN 9
#define R_PPC_REL24           10
#define R_PPC_REL14           11
#define R_PPC_REL14_BRTAKEN   12
#define R_PPC_REL14_BRNTAKEN  13
#define R_PPC_GOT16           14
#define R_PPC_GOT16_LO        15
#define R_PPC_GOT16_HI        16
#define R_PPC_GOT16_HA        17
#define R_PPC_PLTREL24        18
#define R_PPC_COPY            19
#define R_PPC_GLOB_DAT        20
#define R_PPC_JMP_SLOT        21
#define R_PPC_RELATIVE        22
#define R_PPC_LOCAL24PC       23
#define R_PPC_UADDR32         24
#define R_PPC_UADDR16         25
#define R_PPC_REL32           26
#define R_PPC_PLT32           27
#define R_PPC_PLTREL32        28
#define R_PPC_PLT16_LO        29
#define R_PPC_PLT16_HI        30
#define R_PPC_PLT16_HA        31
#define R_PPC_SDAREL16        32
#define R_PPC_SECTOFF         33
#define R_PPC_SECTOFF_LO      34
#define R_PPC_SECTOFF_HI      35
#define R_PPC_SECTOFF_HA      36
#define R_PPC_COUNT       37

#endif /* !_MACHINE_ELF_H_ */