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