aboutsummaryrefslogtreecommitdiff
path: root/sys/powerpc/include/elf.h
blob: ac05f998859bde8dc51c02eff8157e6681aa9c3f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * 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.
 *
 * $FreeBSD$
 */

#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 {
#ifdef __powerpc64__
		int	a_val;		/* Integer value */
#else
		long	a_val;		/* Integer value. */
		void	*a_ptr;		/* Address. */
		void	(*a_fcn)(void);	/* Function pointer (not used). */
#endif
	} 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);

/*
 * 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 BYTE_ORDER == LITTLE_ENDIAN
#define	ELF_TARG_DATA	ELFDATA2LSB
#else
#define	ELF_TARG_DATA	ELFDATA2MSB
#endif
#if __ELF_WORD_SIZE == 64
#define	ELF_TARG_CLASS	ELFCLASS64
#define	ELF_TARG_MACH	EM_PPC64
#define	ELF_TARG_VER	1
#else
#define	ELF_TARG_CLASS	ELFCLASS32
#define	ELF_TARG_MACH	EM_PPC
#define	ELF_TARG_VER	1
#endif

#define	ET_DYN_LOAD_ADDR 0x01010000

#define	AT_OLD_NULL		AT_NULL
#define	AT_OLD_IGNORE		AT_IGNORE
#define	AT_OLD_EXECFD		AT_EXECFD
#define	AT_OLD_PHDR		AT_PHDR
#define	AT_OLD_PHENT		AT_PHENT
#define	AT_OLD_PHNUM		AT_PHNUM
#define	AT_OLD_PAGESZ		AT_PAGESZ
#define	AT_OLD_BASE		AT_BASE
#define	AT_OLD_FLAGS		AT_FLAGS
#define	AT_OLD_ENTRY		AT_ENTRY
#define	AT_OLD_NOTELF		AT_NOTELF
#define	AT_OLD_UID		AT_UID
#define	AT_OLD_EUID		AT_EUID
#define	AT_OLD_EXECPATH		13
#define	AT_OLD_CANARY		14
#define	AT_OLD_CANARYLEN	15
#define	AT_OLD_OSRELDATE	16
#define	AT_OLD_NCPUS		17
#define	AT_OLD_PAGESIZES	18
#define	AT_OLD_PAGESIZESLEN	19
#define	AT_OLD_STACKPROT	21
#define	AT_OLD_TIMEKEEP		AT_TIMEKEEP
#define	AT_OLD_EHDRFLAGS	AT_EHDRFLAGS
#define	AT_OLD_HWCAP		AT_HWCAP
#define	AT_OLD_HWCAP2		AT_HWCAP2

#define	AT_OLD_COUNT	27	/* Count of defined aux entry types. */

#endif /* !_MACHINE_ELF_H_ */