elf.h revision 189926 
1/*-
2 * Copyright (c) 1996-1997 John D. Polstra.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/ia64/include/elf.h 189926 2009-03-17 12:50:16Z kib $
27 */
28
29#ifndef _MACHINE_ELF_H_
30#define	_MACHINE_ELF_H_ 1
31
32/*
33 * ELF definitions for the IA-64 architecture.
34 */
35
36#ifndef __ELF_WORD_SIZE
37#define	__ELF_WORD_SIZE	64
38#endif
39
40#include <sys/elf64.h>	/* Definitions common to all 64 bit architectures. */
41#include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */
42
43#include <sys/elf_generic.h>
44
45#define	ELF_ARCH	EM_IA_64
46
47#define	ELF_MACHINE_OK(x) ((x) == EM_IA_64)
48
49/*
50 * Auxiliary vector entries for passing information to the interpreter.
51 *
52 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
53 * but POSIX lays claim to all symbols ending with "_t".
54 */
55
56typedef struct {	/* Auxiliary vector entry on initial stack */
57	int	a_type;			/* Entry type. */
58	union {
59		int	a_val;		/* Integer value. */
60	} a_un;
61} Elf32_Auxinfo;
62
63typedef struct {	/* Auxiliary vector entry on initial stack */
64	int	a_type;			/* Entry type. */
65	union {
66		long	a_val;		/* Integer value. */
67		void	*a_ptr;		/* Address. */
68		void	(*a_fcn)(void);	/* Function pointer (not used). */
69	} a_un;
70} Elf64_Auxinfo;
71
72__ElfType(Auxinfo);
73
74/* Values for a_type. */
75#define	AT_NULL		0	/* Terminates the vector. */
76#define	AT_IGNORE	1	/* Ignored entry. */
77#define	AT_EXECFD	2	/* File descriptor of program to load. */
78#define	AT_PHDR		3	/* Program header of program already loaded. */
79#define	AT_PHENT	4	/* Size of each program header entry. */
80#define	AT_PHNUM	5	/* Number of program header entries. */
81#define	AT_PAGESZ	6	/* Page size in bytes. */
82#define	AT_BASE		7	/* Interpreter's base address. */
83#define	AT_FLAGS	8	/* Flags (unused for i386). */
84#define	AT_ENTRY	9	/* Where interpreter should transfer control. */
85#define	AT_NOTELF	10	/* Program is not ELF ?? */
86#define	AT_UID		11	/* Real uid. */
87#define	AT_EUID		12	/* Effective uid. */
88#define	AT_GID		13	/* Real gid. */
89#define	AT_EGID		14	/* Effective gid. */
90#define	AT_EXECPATH	15	/* Path to the executable. */
91
92#define	AT_COUNT	16	/* Count of defined aux entry types. */
93
94/*
95 * Values for e_flags.
96 */
97#define	EF_IA_64_MASKOS		0x00ff000f
98#define	EF_IA_64_ABI64		0x00000010
99#define	EF_IA_64_REDUCEDFP	0x00000020
100#define	EF_IA_64_CONS_GP	0x00000040
101#define	EF_IA_64_NOFUNCDESC_CONS_GP 0x00000080
102#define	EF_IA_64_ABSOLUTE	0x00000100
103#define	EF_IA_64_ARCH		0xff000000
104
105/*
106 * Segment types.
107 */
108#define	PT_IA_64_ARCHEXT	0x70000000
109#define	PT_IA_64_UNWIND		0x70000001
110
111/*
112 * Segment attributes.
113 */
114#define	PF_IA_64_NORECOV	0x80000000
115
116/*
117 * Section types.
118 */
119#define	SHT_IA_64_EXT		0x70000000
120#define	SHT_IA_64_UNWIND	0x70000001
121#define	SHT_IA_64_LOPSREG	0x78000000
122#define	SHT_IA_64_HIPSREG	0x7fffffff
123
124/*
125 * Section attribute flags.
126 */
127#define	SHF_IA_64_SHORT		0x10000000
128#define	SHF_IA_64_NORECOV	0x20000000
129
130/* Define "machine" characteristics */
131#if __ELF_WORD_SIZE == 32
132#define	ELF_TARG_CLASS	ELFCLASS32
133#else
134#define	ELF_TARG_CLASS	ELFCLASS64
135#endif
136#define	ELF_TARG_DATA	ELFDATA2LSB
137#define	ELF_TARG_MACH	EM_IA_64
138#define	ELF_TARG_VER	1
139
140/* Processor specific dynmamic section tags. */
141
142#define	DT_IA_64_PLT_RESERVE	0x70000000
143
144#endif /* !_MACHINE_ELF_H_ */
145