text: /*-
   * Copyright (c) 2001 David E. O'Brien
   * 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: soc2013/dpl/head/sys/powerpc/include/elf.h 238127 2012-06-22 06:38:31Z kib $
   */
  
  #ifndef _MACHINE_ELF_H_
  #define	_MACHINE_ELF_H_ 1
  
  /*
   * EABI ELF definitions for the PowerPC architecture.
   * See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
   * [ppc-eabi-1995-01.pdf] for details.
   */
  
  #ifndef __ELF_WORD_SIZE
  #ifdef __powerpc64__
  #define	__ELF_WORD_SIZE	64	/* Used by <sys/elf_generic.h> */
  #else
  #define	__ELF_WORD_SIZE	32	/* Used by <sys/elf_generic.h> */
  #endif
  #endif
  
  #include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */
  #include <sys/elf64.h>	/* Definitions common to all 64 bit architectures. */
  #include <sys/elf_generic.h>
  
  #if __ELF_WORD_SIZE == 64
  #define	ELF_ARCH	EM_PPC64
  #define	ELF_MACHINE_OK(x) ((x) == EM_PPC64)
  #else
  #define	ELF_ARCH	EM_PPC
  #define	ELF_ARCH32	EM_PPC
  #define	ELF_MACHINE_OK(x) ((x) == EM_PPC)
  #endif
  
  /*
   * 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;
  
  typedef struct {	/* Auxiliary vector entry on initial stack */
  	long	a_type;			/* Entry type. */
  	union {
  		long	a_val;		/* Integer value. */
  		void	*a_ptr;		/* Address. */
  		void	(*a_fcn)(void);	/* Function pointer (not used). */
  	} a_un;
  } Elf64_Auxinfo;
  
  __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. */
  #define	AT_DCACHEBSIZE	10	/* Data cache block size for the processor. */
  #define	AT_ICACHEBSIZE	11	/* Instruction cache block size for the uP. */
  #define	AT_UCACHEBSIZE	12	/* Cache block size, or `0' if cache not unified. */
  #define	AT_EXECPATH	13	/* Path to the executable. */
  #define	AT_CANARY	14	/* Canary for SSP */
  #define	AT_CANARYLEN	15	/* Length of the canary. */
  #define	AT_OSRELDATE	16	/* OSRELDATE. */
  #define	AT_NCPUS	17	/* Number of CPUs. */
  #define	AT_PAGESIZES	18	/* Pagesizes. */
  #define	AT_PAGESIZESLEN	19	/* Number of pagesizes. */
  #define	AT_STACKPROT	21	/* Initial stack protection. */
  #define	AT_TIMEKEEP	22	/* Pointer to timehands. */
  
  #define	AT_COUNT	23	/* Count of defined aux entry types. */
  
  /*
   * Relocation types.
   */
  
  #define	R_PPC_COUNT		37	/* Count of defined relocation types. */
  
  					/* Count of defined relocation types. */
  #define	R_PPC_EMB_COUNT		(R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
  
  /* Define "machine" characteristics */
  #if __ELF_WORD_SIZE == 64
  #define	ELF_TARG_CLASS	ELFCLASS64
  #define	ELF_TARG_DATA	ELFDATA2MSB
  #define	ELF_TARG_MACH	EM_PPC64
  #define	ELF_TARG_VER	1
  #else
  #define	ELF_TARG_CLASS	ELFCLASS32
  #define	ELF_TARG_DATA	ELFDATA2MSB
  #define	ELF_TARG_MACH	EM_PPC
  #define	ELF_TARG_VER	1
  #endif
  
  #define	ET_DYN_LOAD_ADDR 0x01010000
  
  #endif /* !_MACHINE_ELF_H_ */
  