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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _LINK_H 28 #define _LINK_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/link.h> 33 34 #ifndef _ASM 35 #include <libelf.h> 36 #include <sys/types.h> 37 #include <dlfcn.h> 38 #endif 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 #ifndef _ASM 45 /* 46 * ld support library calls 47 */ 48 #ifdef __STDC__ 49 extern uint_t ld_version(uint_t); 50 extern void ld_start(const char *, const Elf32_Half, const char *); 51 extern void ld_atexit(int); 52 extern void ld_file(const char *, const Elf_Kind, int, Elf *); 53 extern void ld_input_section(const char *, Elf32_Shdr **, Elf32_Word, 54 Elf_Data *, Elf *, uint_t *); 55 extern void ld_input_done(uint_t *); 56 extern void ld_section(const char *, Elf32_Shdr *, Elf32_Word, 57 Elf_Data *, Elf *); 58 59 #if defined(_LP64) || defined(_LONGLONG_TYPE) 60 extern void ld_start64(const char *, const Elf64_Half, const char *); 61 extern void ld_atexit64(int); 62 extern void ld_file64(const char *, const Elf_Kind, int, Elf *); 63 extern void ld_input_section64(const char *, Elf64_Shdr **, Elf64_Word, 64 Elf_Data *, Elf *, uint_t *); 65 extern void ld_section64(const char *, Elf64_Shdr *, Elf64_Word, 66 Elf_Data *, Elf *); 67 68 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 69 #else 70 extern void ld_version(); 71 extern void ld_start(); 72 extern void ld_atexit(); 73 extern void ld_file(); 74 extern void ld_input_section(); 75 extern void ld_input_done(); 76 extern void ld_section(); 77 78 #if defined(_LP64) || defined(_LONGLONG_TYPE) 79 extern void ld_start64(); 80 extern void ld_atexit64(); 81 extern void ld_file64(); 82 extern void ld_section64(); 83 84 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 85 #endif /* __STDC__ */ 86 87 /* 88 * ld_version() version values 89 */ 90 #define LD_SUP_VNONE 0 91 #define LD_SUP_VERSION1 1 92 #define LD_SUP_VERSION2 2 93 #define LD_SUP_VCURRENT LD_SUP_VERSION2 94 95 96 /* 97 * flags passed to ld support calls 98 */ 99 #define LD_SUP_DERIVED 0x1 /* derived filename */ 100 #define LD_SUP_INHERITED 0x2 /* file inherited from .so DT_NEEDED */ 101 #define LD_SUP_EXTRACTED 0x4 /* file extracted from archive */ 102 #endif 103 104 #define LM_ID_BASE 0x00 105 #define LM_ID_LDSO 0x01 106 #define LM_ID_NUM 2 107 108 #define LM_ID_NEWLM 0xff /* create a new link-map */ 109 110 111 /* 112 * Run-Time Link-Edit Auditing 113 */ 114 #define LAV_NONE 0 115 #define LAV_VERSION1 1 116 #define LAV_VERSION2 2 117 #define LAV_VERSION3 3 118 #define LAV_CURRENT LAV_VERSION3 119 #define LAV_NUM 4 120 121 /* 122 * Flags that can be or'd into the la_objopen() return code 123 */ 124 #define LA_FLG_BINDTO 0x0001 /* audit symbinds TO this object */ 125 #define LA_FLG_BINDFROM 0x0002 /* audit symbinding FROM this object */ 126 127 /* 128 * Flags that can be or'd into the 'flags' argument of la_symbind() 129 */ 130 #define LA_SYMB_NOPLTENTER 0x0001 /* disable pltenter for this symbol */ 131 #define LA_SYMB_NOPLTEXIT 0x0002 /* disable pltexit for this symbol */ 132 #define LA_SYMB_STRUCTCALL 0x0004 /* this function call passes a */ 133 /* structure as it's return code */ 134 #define LA_SYMB_DLSYM 0x0008 /* this symbol bindings is due to */ 135 /* a call to dlsym() */ 136 #define LA_SYMB_ALTVALUE 0x0010 /* alternate symbol binding returned */ 137 /* by la_symbind() */ 138 139 /* 140 * Flags that describe the object passed to la_objsearch() 141 */ 142 #define LA_SER_ORIG 0x001 /* original (needed) name */ 143 #define LA_SER_LIBPATH 0x002 /* LD_LIBRARY_PATH entry prepended */ 144 #define LA_SER_RUNPATH 0x004 /* runpath entry prepended */ 145 #define LA_SER_CONFIG 0x008 /* configuration entry prepended */ 146 #define LA_SER_DEFAULT 0x040 /* default path prepended */ 147 #define LA_SER_SECURE 0x080 /* default (secure) path prepended */ 148 149 #define LA_SER_MASK 0xfff /* mask of known flags */ 150 151 /* 152 * Flags that describe the la_activity() 153 */ 154 #define LA_ACT_CONSISTENT 0x00 /* add/deletion of objects complete */ 155 #define LA_ACT_ADD 0x01 /* objects being added */ 156 #define LA_ACT_DELETE 0x02 /* objects being deleted */ 157 158 159 #ifndef _KERNEL 160 #ifndef _ASM 161 162 #if defined(_LP64) 163 typedef long lagreg_t; 164 #else 165 typedef int lagreg_t; 166 #endif 167 168 struct _la_sparc_regs { 169 lagreg_t lr_rego0; 170 lagreg_t lr_rego1; 171 lagreg_t lr_rego2; 172 lagreg_t lr_rego3; 173 lagreg_t lr_rego4; 174 lagreg_t lr_rego5; 175 lagreg_t lr_rego6; 176 lagreg_t lr_rego7; 177 }; 178 179 #if defined(_LP64) 180 typedef struct _la_sparc_regs La_sparcv9_regs; 181 typedef struct { 182 lagreg_t lr_rsp; 183 lagreg_t lr_rbp; 184 lagreg_t lr_rdi; /* arg1 */ 185 lagreg_t lr_rsi; /* arg2 */ 186 lagreg_t lr_rdx; /* arg3 */ 187 lagreg_t lr_rcx; /* arg4 */ 188 lagreg_t lr_r8; /* arg5 */ 189 lagreg_t lr_r9; /* arg6 */ 190 } La_amd64_regs; 191 #else 192 typedef struct _la_sparc_regs La_sparcv8_regs; 193 typedef struct { 194 lagreg_t lr_esp; 195 lagreg_t lr_ebp; 196 } La_i86_regs; 197 #endif 198 199 #if !defined(_SYS_INT_TYPES_H) 200 #if defined(_LP64) || defined(_I32LPx) 201 typedef unsigned long uintptr_t; 202 #else 203 typedef unsigned int uintptr_t; 204 #endif 205 #endif 206 207 208 #ifdef __STDC__ 209 extern uint_t la_version(uint_t); 210 extern void la_activity(uintptr_t *, uint_t); 211 extern void la_preinit(uintptr_t *); 212 extern char *la_objsearch(const char *, uintptr_t *, uint_t); 213 extern uint_t la_objopen(Link_map *, Lmid_t, uintptr_t *); 214 extern uint_t la_objclose(uintptr_t *); 215 extern int la_objfilter(uintptr_t *, const char *, uintptr_t *, 216 uint_t); 217 #if defined(_LP64) 218 extern uintptr_t la_amd64_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 219 uintptr_t *, La_amd64_regs *, uint_t *, 220 const char *); 221 extern uintptr_t la_symbind64(Elf64_Sym *, uint_t, uintptr_t *, 222 uintptr_t *, uint_t *, const char *); 223 extern uintptr_t la_sparcv9_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 224 uintptr_t *, La_sparcv9_regs *, uint_t *, 225 const char *); 226 extern uintptr_t la_pltexit64(Elf64_Sym *, uint_t, uintptr_t *, 227 uintptr_t *, uintptr_t, const char *); 228 #else /* !defined(_LP64) */ 229 extern uintptr_t la_symbind32(Elf32_Sym *, uint_t, uintptr_t *, 230 uintptr_t *, uint_t *); 231 extern uintptr_t la_sparcv8_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 232 uintptr_t *, La_sparcv8_regs *, uint_t *); 233 extern uintptr_t la_i86_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 234 uintptr_t *, La_i86_regs *, uint_t *); 235 extern uintptr_t la_pltexit(Elf32_Sym *, uint_t, uintptr_t *, 236 uintptr_t *, uintptr_t); 237 #endif /* _LP64 */ 238 #else /* __STDC__ */ 239 extern uint_t la_version(); 240 extern void la_preinit(); 241 extern uint_t la_objopen(); 242 extern uint_t la_objclose(); 243 extern int la_objfilter(); 244 #if defined(_LP64) 245 extern uintptr_t la_sparcv9_pltenter(); 246 extern uintptr_t la_pltexit64(); 247 extern uintptr_t la_symbind64(); 248 #else /* _ILP32 */ 249 extern uintptr_t la_sparcv8_pltenter(); 250 extern uintptr_t la_i86_pltenter(); 251 extern uintptr_t la_pltexit(); 252 extern uintptr_t la_symbind32(); 253 #endif /* _LP64 */ 254 #endif /* __STDC__ */ 255 256 257 #endif /* _ASM */ 258 #endif /* _KERNEL */ 259 260 #ifdef __cplusplus 261 } 262 #endif 263 264 #endif /* _LINK_H */ 265