xref: /titanic_41/usr/src/uts/common/sys/elf_386.h (revision ea394cb00fd96864e34d2841b4a22357b621c78f)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  *	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
24  *	  All Rights Reserved
25  *
26  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
27  * Use is subject to license terms.
28  */
29 
30 #ifndef _SYS_ELF_386_H
31 #define	_SYS_ELF_386_H
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #define	R_386_NONE		0	/* relocation type */
38 #define	R_386_32		1
39 #define	R_386_PC32		2
40 #define	R_386_GOT32		3
41 #define	R_386_PLT32		4
42 #define	R_386_COPY		5
43 #define	R_386_GLOB_DAT		6
44 #define	R_386_JMP_SLOT		7
45 #define	R_386_RELATIVE		8
46 #define	R_386_GOTOFF		9
47 #define	R_386_GOTPC		10
48 #define	R_386_32PLT		11
49 #define	R_386_TLS_GD_PLT	12
50 #define	R_386_TLS_LDM_PLT	13
51 #define	R_386_TLS_TPOFF		14
52 #define	R_386_TLS_IE		15
53 #define	R_386_TLS_GOTIE		16
54 #define	R_386_TLS_LE		17
55 #define	R_386_TLS_GD		18
56 #define	R_386_TLS_LDM		19
57 #define	R_386_16		20
58 #define	R_386_PC16		21
59 #define	R_386_8			22
60 #define	R_386_PC8		23
61 #define	R_386_UNKNOWN24		24
62 #define	R_386_UNKNOWN25		25
63 #define	R_386_UNKNOWN26		26
64 #define	R_386_UNKNOWN27		27
65 #define	R_386_UNKNOWN28		28
66 #define	R_386_UNKNOWN29		29
67 #define	R_386_UNKNOWN30		30
68 #define	R_386_UNKNOWN31		31
69 #define	R_386_TLS_LDO_32	32
70 #define	R_386_UNKNOWN33		33
71 #define	R_386_UNKNOWN34		34
72 #define	R_386_TLS_DTPMOD32	35
73 #define	R_386_TLS_DTPOFF32	36
74 #define	R_386_UNKNOWN37		37
75 #define	R_386_SIZE32		38
76 #define	R_386_NUM		39
77 
78 #define	ELF_386_MAXPGSZ		0x10000	/* maximum page size */
79 
80 #define	SHF_ORDERED	0x40000000
81 #define	SHF_EXCLUDE	0x80000000
82 
83 #define	SHN_BEFORE	0xff00
84 #define	SHN_AFTER	0xff01
85 
86 /*
87  * There are consumers of this file that want to include elf defines for
88  * all architectures.  This is a problem for the defines below, because
89  * while they are architecture specific they have common names.  Hence to
90  * prevent attempts to redefine these variables we'll check if any of
91  * the other elf architecture header files have been included.  If
92  * they have then we'll just stick with the existing definitions.
93  */
94 #if !defined(_SYS_ELF_MACH_COMMON)
95 #define	_SYS_ELF_MACH_COMMON
96 #define	_SYS_ELF_MACH_386
97 
98 /*
99  * Plt and Got information; the first few .got and .plt entries are reserved
100  *	PLT[0]	jump to dynamic linker
101  *	GOT[0]	address of _DYNAMIC
102  */
103 #define	M_PLT_INSSIZE		6	/* single plt instruction size */
104 #define	M_PLT_XNumber		1	/* PLT[0] reserved */
105 #define	M_GOT_XDYNAMIC		0	/* got index for _DYNAMIC */
106 #define	M_GOT_XLINKMAP		1	/* got index for link map */
107 #define	M_GOT_XRTLD		2	/* got index for rtbinder */
108 #define	M_GOT_XNumber		3	/* reserved no. of got entries */
109 
110 #define	M32_WORD_ALIGN		4
111 #define	M32_PLT_ENTSIZE		16	/* plt entry size in bytes */
112 #define	M32_PLT_ALIGN		M32_WORD_ALIGN	/* alignment of .plt section */
113 #define	M32_GOT_ENTSIZE		4	/* got entry size in bytes */
114 #define	M32_PLT_RESERVSZ	(M_PLT_XNumber * \
115 				M32_PLT_ENTSIZE) /* first plt reserved */
116 
117 
118 /*
119  * Make common alias for the 32/64 bit specific defines based on _ELF64
120  */
121 #if !defined(_ELF64)
122 /* architecture common defines */
123 #define	M_WORD_ALIGN		M32_WORD_ALIGN
124 #define	M_PLT_ENTSIZE		M32_PLT_ENTSIZE
125 #define	M_PLT_ALIGN		M32_PLT_ALIGN
126 #define	M_PLT_RESERVSZ		M32_PLT_RESERVSZ
127 #define	M_GOT_ENTSIZE		M32_GOT_ENTSIZE
128 #endif /* !_ELF64 */
129 
130 #endif /* !_SYS_ELF_MACH_COMMON */
131 
132 #ifdef	__cplusplus
133 }
134 #endif
135 
136 #endif	/* _SYS_ELF_386_H */
137