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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _RELOC_DEFS_DOT_H 28 #define _RELOC_DEFS_DOT_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/machelf.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Definitions used by the relocation common code. 40 */ 41 42 43 /* 44 * Structure used to build the reloc_table[] 45 */ 46 typedef struct { 47 Xword re_mask; /* mask to apply to reloc (sparc only) */ 48 Word re_flags; /* relocation attributes */ 49 uchar_t re_fsize; /* field size (in bytes) */ 50 uchar_t re_bshift; /* number of bits to shift (sparc only) */ 51 uchar_t re_sigbits; /* number of significant bits */ 52 } Rel_entry; 53 54 /* 55 * Flags for reloc_entry->re_flags 56 */ 57 #define FLG_RE_NOTREL 0x00000000 58 #define FLG_RE_GOTADD 0x00000001 /* create a GOT entry */ 59 #define FLG_RE_GOTREL 0x00000002 /* GOT based */ 60 #define FLG_RE_GOTPC 0x00000004 /* GOT - P */ 61 #define FLG_RE_GOTOPINS 0x00000008 /* GOTOP instruction */ 62 #define FLG_RE_PCREL 0x00000010 63 #define FLG_RE_PLTREL 0x00000020 64 #define FLG_RE_VERIFY 0x00000040 /* verify value fits */ 65 #define FLG_RE_UNALIGN 0x00000080 /* offset is not aligned */ 66 #define FLG_RE_WDISP16 0x00000100 /* funky sparc DISP16 rel */ 67 #define FLG_RE_SIGN 0x00000200 /* value is signed */ 68 #define FLG_RE_ADDRELATIVE 0x00000400 /* RELATIVE relocation */ 69 /* required for non- */ 70 /* fixed objects */ 71 #define FLG_RE_EXTOFFSET 0x00000800 /* extra offset required */ 72 #define FLG_RE_REGISTER 0x00001000 /* relocation initializes */ 73 /* a REGISTER by OLO10 */ 74 #define FLG_RE_SIZE 0x00002000 /* symbol size required */ 75 76 #define FLG_RE_NOTSUP 0x00010000 /* relocation not supported */ 77 78 #define FLG_RE_SEGREL 0x00040000 /* segment relative */ 79 #define FLG_RE_SECREL 0x00080000 /* section relative */ 80 81 #define FLG_RE_TLSGD 0x00200000 /* TLS GD relocation */ 82 #define FLG_RE_TLSLD 0x00400000 /* TLS LD relocation */ 83 #define FLG_RE_TLSIE 0x00800000 /* TLS IE relocation */ 84 #define FLG_RE_TLSLE 0x01000000 /* TLS LE relocation */ 85 #define FLG_RE_LOCLBND 0x02000000 /* relocation must bind */ 86 /* locally */ 87 88 /* 89 * Relocation table and macros for testing relocation table flags. 90 */ 91 92 #define RELTAB_IS_PLT(X, _reltab) \ 93 ((_reltab[(X)].re_flags & FLG_RE_PLTREL) != 0) 94 95 #define RELTAB_IS_GOT_RELATIVE(X, _reltab) \ 96 ((_reltab[(X)].re_flags & FLG_RE_GOTADD) != 0) 97 98 #define RELTAB_IS_GOT_PC(X, _reltab) \ 99 ((_reltab[(X)].re_flags & FLG_RE_GOTPC) != 0) 100 101 #define RELTAB_IS_GOTPCREL(X, _reltab) \ 102 ((_reltab[(X)].re_flags & (FLG_RE_GOTPC | FLG_RE_GOTADD)) == \ 103 (FLG_RE_GOTPC | FLG_RE_GOTADD)) 104 105 #define RELTAB_IS_GOT_BASED(X, _reltab) \ 106 ((_reltab[(X)].re_flags & FLG_RE_GOTREL) != 0) 107 108 #define RELTAB_IS_GOT_OPINS(X, _reltab) \ 109 ((_reltab[(X)].re_flags & FLG_RE_GOTOPINS) != 0) 110 111 #define RELTAB_IS_GOT_REQUIRED(X, _reltab) \ 112 ((_reltab[(X)].re_flags & (FLG_RE_GOTADD | FLG_RE_GOTREL | \ 113 FLG_RE_GOTPC | FLG_RE_GOTOPINS)) != 0) 114 115 #define RELTAB_IS_PC_RELATIVE(X, _reltab) \ 116 ((_reltab[(X)].re_flags & FLG_RE_PCREL) != 0) 117 118 #define RELTAB_IS_ADD_RELATIVE(X, _reltab) \ 119 ((_reltab[(X)].re_flags & FLG_RE_ADDRELATIVE) != 0) 120 121 #define RELTAB_IS_REGISTER(X, _reltab) \ 122 ((_reltab[(X)].re_flags & FLG_RE_REGISTER) != 0) 123 124 #define RELTAB_IS_NOTSUP(X, _reltab) \ 125 ((_reltab[(X)].re_flags & FLG_RE_NOTSUP) != 0) 126 127 #define RELTAB_IS_SEG_RELATIVE(X, _reltab) \ 128 ((_reltab[(X)].re_flags & FLG_RE_SEGREL) != 0) 129 130 #define RELTAB_IS_EXTOFFSET(X, _reltab) \ 131 ((_reltab[(X)].re_flags & FLG_RE_EXTOFFSET) != 0) 132 133 #define RELTAB_IS_SEC_RELATIVE(X, _reltab) \ 134 ((_reltab[(X)].re_flags & FLG_RE_SECREL) != 0) 135 136 #define RELTAB_IS_TLS_INS(X, _reltab) \ 137 ((_reltab[(X)].re_flags & \ 138 (FLG_RE_TLSGD | FLG_RE_TLSLD | FLG_RE_TLSIE | FLG_RE_TLSLE)) != 0) 139 140 #define RELTAB_IS_TLS_GD(X, _reltab) \ 141 ((_reltab[(X)].re_flags & FLG_RE_TLSGD) != 0) 142 143 #define RELTAB_IS_TLS_LD(X, _reltab) \ 144 ((_reltab[(X)].re_flags & FLG_RE_TLSLD) != 0) 145 146 #define RELTAB_IS_TLS_IE(X, _reltab) \ 147 ((_reltab[(X)].re_flags & FLG_RE_TLSIE) != 0) 148 149 #define RELTAB_IS_TLS_LE(X, _reltab) \ 150 ((_reltab[(X)].re_flags & FLG_RE_TLSLE) != 0) 151 152 #define RELTAB_IS_LOCALBND(X, _reltab) \ 153 ((_reltab[(X)].re_flags & FLG_RE_LOCLBND) != 0) 154 155 #define RELTAB_IS_SIZE(X, _reltab) \ 156 ((_reltab[(X)].re_flags & FLG_RE_SIZE) != 0) 157 158 #ifdef __cplusplus 159 } 160 #endif 161 162 #endif /* _RELOC_DEFS_DOT_H */ 163