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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _LINK_H 27 #define _LINK_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/link.h> 32 33 #ifndef _ASM 34 #include <libelf.h> 35 #include <sys/types.h> 36 #include <dlfcn.h> 37 #endif 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #ifndef _ASM 44 /* 45 * ld support library calls 46 */ 47 #ifdef __STDC__ 48 extern uint_t ld_version(uint_t); 49 extern void ld_input_done(uint_t *); 50 51 extern void ld_start(const char *, const Elf32_Half, const char *); 52 extern void ld_atexit(int); 53 extern void ld_open(const char **, const char **, int *, int, Elf **, 54 Elf *, size_t, const Elf_Kind); 55 extern void ld_file(const char *, const Elf_Kind, int, Elf *); 56 extern void ld_input_section(const char *, Elf32_Shdr **, Elf32_Word, 57 Elf_Data *, Elf *, uint_t *); 58 extern void ld_section(const char *, Elf32_Shdr *, Elf32_Word, 59 Elf_Data *, Elf *); 60 61 #if defined(_LP64) || defined(_LONGLONG_TYPE) 62 extern void ld_start64(const char *, const Elf64_Half, const char *); 63 extern void ld_atexit64(int); 64 extern void ld_open64(const char **, const char **, int *, int, Elf **, 65 Elf *, size_t, const Elf_Kind); 66 extern void ld_file64(const char *, const Elf_Kind, int, Elf *); 67 extern void ld_input_section64(const char *, Elf64_Shdr **, Elf64_Word, 68 Elf_Data *, Elf *, uint_t *); 69 extern void ld_section64(const char *, Elf64_Shdr *, Elf64_Word, 70 Elf_Data *, Elf *); 71 72 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 73 #else 74 extern void ld_version(); 75 extern void ld_input_done(); 76 77 extern void ld_start(); 78 extern void ld_atexit(); 79 extern void ld_open(); 80 extern void ld_file(); 81 extern void ld_input_section(); 82 extern void ld_section(); 83 84 #if defined(_LP64) || defined(_LONGLONG_TYPE) 85 extern void ld_start64(); 86 extern void ld_atexit64(); 87 extern void ld_open64(); 88 extern void ld_file64(); 89 extern void ld_input_section64(); 90 extern void ld_section64(); 91 92 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 93 #endif /* __STDC__ */ 94 95 /* 96 * ld_version() version values. 97 */ 98 #define LD_SUP_VNONE 0 99 #define LD_SUP_VERSION1 1 100 #define LD_SUP_VERSION2 2 101 #define LD_SUP_VERSION3 3 102 #define LD_SUP_VCURRENT LD_SUP_VERSION3 103 104 /* 105 * Flags passed to ld support calls. 106 */ 107 #define LD_SUP_DERIVED 0x1 /* derived filename */ 108 #define LD_SUP_INHERITED 0x2 /* file inherited from .so DT_NEEDED */ 109 #define LD_SUP_EXTRACTED 0x4 /* file extracted from archive */ 110 #endif 111 112 /* 113 * Runtime link-map identifiers. 114 */ 115 #define LM_ID_BASE 0x00 116 #define LM_ID_LDSO 0x01 117 #define LM_ID_NUM 2 118 119 #define LM_ID_BRAND 0xfd /* brand emulation linkmap objs */ 120 #define LM_ID_NONE 0xfe /* no link map specified */ 121 #define LM_ID_NEWLM 0xff /* create a new link-map */ 122 123 /* 124 * Runtime Link-Edit Auditing. 125 */ 126 #define LAV_NONE 0 127 #define LAV_VERSION1 1 128 #define LAV_VERSION2 2 129 #define LAV_VERSION3 3 130 #define LAV_VERSION4 4 131 #define LAV_CURRENT LAV_VERSION4 132 #define LAV_NUM 5 133 134 /* 135 * Flags that can be or'd into the la_objopen() return code 136 */ 137 #define LA_FLG_BINDTO 0x0001 /* audit symbinds TO this object */ 138 #define LA_FLG_BINDFROM 0x0002 /* audit symbinding FROM this object */ 139 140 /* 141 * Flags that can be or'd into the 'flags' argument of la_symbind() 142 */ 143 #define LA_SYMB_NOPLTENTER 0x0001 /* disable pltenter for this symbol */ 144 #define LA_SYMB_NOPLTEXIT 0x0002 /* disable pltexit for this symbol */ 145 #define LA_SYMB_STRUCTCALL 0x0004 /* this function call passes a */ 146 /* structure as it's return code */ 147 #define LA_SYMB_DLSYM 0x0008 /* this symbol bindings is due to */ 148 /* a call to dlsym() */ 149 #define LA_SYMB_ALTVALUE 0x0010 /* alternate symbol binding returned */ 150 /* by la_symbind() */ 151 152 /* 153 * Flags that describe the object passed to la_objsearch() 154 */ 155 #define LA_SER_ORIG 0x001 /* original (needed) name */ 156 #define LA_SER_LIBPATH 0x002 /* LD_LIBRARY_PATH entry prepended */ 157 #define LA_SER_RUNPATH 0x004 /* runpath entry prepended */ 158 #define LA_SER_CONFIG 0x008 /* configuration entry prepended */ 159 #define LA_SER_DEFAULT 0x040 /* default path prepended */ 160 #define LA_SER_SECURE 0x080 /* default (secure) path prepended */ 161 162 #define LA_SER_MASK 0xfff /* mask of known flags */ 163 164 /* 165 * Flags that describe the la_activity() 166 */ 167 #define LA_ACT_CONSISTENT 0x00 /* add/deletion of objects complete */ 168 #define LA_ACT_ADD 0x01 /* objects being added */ 169 #define LA_ACT_DELETE 0x02 /* objects being deleted */ 170 171 172 #ifndef _KERNEL 173 #ifndef _ASM 174 175 #if defined(_LP64) 176 typedef long lagreg_t; 177 #else 178 typedef int lagreg_t; 179 #endif 180 181 struct _la_sparc_regs { 182 lagreg_t lr_rego0; 183 lagreg_t lr_rego1; 184 lagreg_t lr_rego2; 185 lagreg_t lr_rego3; 186 lagreg_t lr_rego4; 187 lagreg_t lr_rego5; 188 lagreg_t lr_rego6; 189 lagreg_t lr_rego7; 190 }; 191 192 #if defined(_LP64) 193 typedef struct _la_sparc_regs La_sparcv9_regs; 194 typedef struct { 195 lagreg_t lr_rsp; 196 lagreg_t lr_rbp; 197 lagreg_t lr_rdi; /* arg1 */ 198 lagreg_t lr_rsi; /* arg2 */ 199 lagreg_t lr_rdx; /* arg3 */ 200 lagreg_t lr_rcx; /* arg4 */ 201 lagreg_t lr_r8; /* arg5 */ 202 lagreg_t lr_r9; /* arg6 */ 203 } La_amd64_regs; 204 #else 205 typedef struct _la_sparc_regs La_sparcv8_regs; 206 typedef struct { 207 lagreg_t lr_esp; 208 lagreg_t lr_ebp; 209 } La_i86_regs; 210 #endif 211 212 #if !defined(_SYS_INT_TYPES_H) 213 #if defined(_LP64) || defined(_I32LPx) 214 typedef unsigned long uintptr_t; 215 #else 216 typedef unsigned int uintptr_t; 217 #endif 218 #endif 219 220 221 #ifdef __STDC__ 222 extern uint_t la_version(uint_t); 223 extern void la_activity(uintptr_t *, uint_t); 224 extern void la_preinit(uintptr_t *); 225 extern char *la_objsearch(const char *, uintptr_t *, uint_t); 226 extern uint_t la_objopen(Link_map *, Lmid_t, uintptr_t *); 227 extern uint_t la_objclose(uintptr_t *); 228 extern int la_objfilter(uintptr_t *, const char *, uintptr_t *, 229 uint_t); 230 #if defined(_LP64) 231 extern uintptr_t la_amd64_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 232 uintptr_t *, La_amd64_regs *, uint_t *, 233 const char *); 234 extern uintptr_t la_symbind64(Elf64_Sym *, uint_t, uintptr_t *, 235 uintptr_t *, uint_t *, const char *); 236 extern uintptr_t la_sparcv9_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 237 uintptr_t *, La_sparcv9_regs *, uint_t *, 238 const char *); 239 extern uintptr_t la_pltexit64(Elf64_Sym *, uint_t, uintptr_t *, 240 uintptr_t *, uintptr_t, const char *); 241 #else /* !defined(_LP64) */ 242 extern uintptr_t la_symbind32(Elf32_Sym *, uint_t, uintptr_t *, 243 uintptr_t *, uint_t *); 244 extern uintptr_t la_sparcv8_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 245 uintptr_t *, La_sparcv8_regs *, uint_t *); 246 extern uintptr_t la_i86_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 247 uintptr_t *, La_i86_regs *, uint_t *); 248 extern uintptr_t la_pltexit(Elf32_Sym *, uint_t, uintptr_t *, 249 uintptr_t *, uintptr_t); 250 #endif /* _LP64 */ 251 #else /* __STDC__ */ 252 extern uint_t la_version(); 253 extern void la_preinit(); 254 extern uint_t la_objopen(); 255 extern uint_t la_objclose(); 256 extern int la_objfilter(); 257 #if defined(_LP64) 258 extern uintptr_t la_sparcv9_pltenter(); 259 extern uintptr_t la_pltexit64(); 260 extern uintptr_t la_symbind64(); 261 #else /* _ILP32 */ 262 extern uintptr_t la_sparcv8_pltenter(); 263 extern uintptr_t la_i86_pltenter(); 264 extern uintptr_t la_pltexit(); 265 extern uintptr_t la_symbind32(); 266 #endif /* _LP64 */ 267 #endif /* __STDC__ */ 268 269 270 #endif /* _ASM */ 271 #endif /* _KERNEL */ 272 273 #ifdef __cplusplus 274 } 275 #endif 276 277 #endif /* _LINK_H */ 278