1/*-
  2 * SPDX-License-Identifier: BSD-2-Clause
  3 *
  4 * Copyright (c) 2001 David E. O'Brien
  5 * Copyright (c) 1996-1997 John D. Polstra.
  6 * All rights reserved.
  7 *
  8 * Redistribution and use in source and binary forms, with or without
  9 * modification, are permitted provided that the following conditions
 10 * are met:
 11 * 1. Redistributions of source code must retain the above copyright
 12 *    notice, this list of conditions and the following disclaimer.
 13 * 2. Redistributions in binary form must reproduce the above copyright
 14 *    notice, this list of conditions and the following disclaimer in the
 15 *    documentation and/or other materials provided with the distribution.
 16 *
 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 27 * SUCH DAMAGE.
 28 */
 29
 30#ifndef _MACHINE_ELF_H_
 31#define	_MACHINE_ELF_H_ 1
 32
 33/*
 34 * EABI ELF definitions for the PowerPC architecture.
 35 * See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
 36 * [ppc-eabi-1995-01.pdf] for details.
 37 */
 38
 39#ifndef __ELF_WORD_SIZE
 40#ifdef __powerpc64__
 41#define	__ELF_WORD_SIZE	64	/* Used by <sys/elf_generic.h> */
 42#else
 43#define	__ELF_WORD_SIZE	32	/* Used by <sys/elf_generic.h> */
 44#endif
 45#endif
 46
 47#include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */
 48#include <sys/elf64.h>	/* Definitions common to all 64 bit architectures. */
 49#include <sys/elf_generic.h>
 50
 51#if __ELF_WORD_SIZE == 64
 52#define	ELF_ARCH	EM_PPC64
 53#define	ELF_MACHINE_OK(x) ((x) == EM_PPC64)
 54#else
 55#define	ELF_ARCH	EM_PPC
 56#define	ELF_ARCH32	EM_PPC
 57#define	ELF_MACHINE_OK(x) ((x) == EM_PPC)
 58#endif
 59
 60/*
 61 * Auxiliary vector entries for passing information to the interpreter.
 62 *
 63 * The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
 64 * but POSIX lays claim to all symbols ending with "_t".
 65 */
 66
 67typedef struct {	/* Auxiliary vector entry on initial stack */
 68	int	a_type;			/* Entry type. */
 69	union {
 70#ifdef __powerpc64__
 71		int	a_val;		/* Integer value */
 72#else
 73		long	a_val;		/* Integer value. */
 74		void	*a_ptr;		/* Address. */
 75		void	(*a_fcn)(void);	/* Function pointer (not used). */
 76#endif
 77	} a_un;
 78} Elf32_Auxinfo;
 79
 80typedef struct {	/* Auxiliary vector entry on initial stack */
 81	long	a_type;			/* Entry type. */
 82	union {
 83		long	a_val;		/* Integer value. */
 84		void	*a_ptr;		/* Address. */
 85		void	(*a_fcn)(void);	/* Function pointer (not used). */
 86	} a_un;
 87} Elf64_Auxinfo;
 88
 89__ElfType(Auxinfo);
 90
 91/*
 92 * Relocation types.
 93 */
 94
 95#define	R_PPC_COUNT		37	/* Count of defined relocation types. */
 96
 97					/* Count of defined relocation types. */
 98#define	R_PPC_EMB_COUNT		(R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
 99
100/* Define "machine" characteristics */
101#if BYTE_ORDER == LITTLE_ENDIAN
102#define	ELF_TARG_DATA	ELFDATA2LSB
103#else
104#define	ELF_TARG_DATA	ELFDATA2MSB
105#endif
106#if __ELF_WORD_SIZE == 64
107#define	ELF_TARG_CLASS	ELFCLASS64
108#define	ELF_TARG_MACH	EM_PPC64
109#define	ELF_TARG_VER	1
110#else
111#define	ELF_TARG_CLASS	ELFCLASS32
112#define	ELF_TARG_MACH	EM_PPC
113#define	ELF_TARG_VER	1
114#endif
115
116#define	ET_DYN_LOAD_ADDR 0x01010000
117
118#define	AT_OLD_NULL		AT_NULL
119#define	AT_OLD_IGNORE		AT_IGNORE
120#define	AT_OLD_EXECFD		AT_EXECFD
121#define	AT_OLD_PHDR		AT_PHDR
122#define	AT_OLD_PHENT		AT_PHENT
123#define	AT_OLD_PHNUM		AT_PHNUM
124#define	AT_OLD_PAGESZ		AT_PAGESZ
125#define	AT_OLD_BASE		AT_BASE
126#define	AT_OLD_FLAGS		AT_FLAGS
127#define	AT_OLD_ENTRY		AT_ENTRY
128#define	AT_OLD_NOTELF		AT_NOTELF
129#define	AT_OLD_UID		AT_UID
130#define	AT_OLD_EUID		AT_EUID
131#define	AT_OLD_EXECPATH		13
132#define	AT_OLD_CANARY		14
133#define	AT_OLD_CANARYLEN	15
134#define	AT_OLD_OSRELDATE	16
135#define	AT_OLD_NCPUS		17
136#define	AT_OLD_PAGESIZES	18
137#define	AT_OLD_PAGESIZESLEN	19
138#define	AT_OLD_STACKPROT	21
139#define	AT_OLD_TIMEKEEP		AT_TIMEKEEP
140#define	AT_OLD_EHDRFLAGS	AT_EHDRFLAGS
141#define	AT_OLD_HWCAP		AT_HWCAP
142#define	AT_OLD_HWCAP2		AT_HWCAP2
143
144#define	AT_OLD_COUNT	27	/* Count of defined aux entry types. */
145
146#endif /* !_MACHINE_ELF_H_ */