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 2006 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_start(const char *, const Elf32_Half, const char *); 50 extern void ld_atexit(int); 51 extern void ld_file(const char *, const Elf_Kind, int, Elf *); 52 extern void ld_input_section(const char *, Elf32_Shdr **, Elf32_Word, 53 Elf_Data *, Elf *, uint_t *); 54 extern void ld_input_done(uint_t *); 55 extern void ld_section(const char *, Elf32_Shdr *, Elf32_Word, 56 Elf_Data *, Elf *); 57 58 #if defined(_LP64) || defined(_LONGLONG_TYPE) 59 extern void ld_start64(const char *, const Elf64_Half, const char *); 60 extern void ld_atexit64(int); 61 extern void ld_file64(const char *, const Elf_Kind, int, Elf *); 62 extern void ld_input_section64(const char *, Elf64_Shdr **, Elf64_Word, 63 Elf_Data *, Elf *, uint_t *); 64 extern void ld_section64(const char *, Elf64_Shdr *, Elf64_Word, 65 Elf_Data *, Elf *); 66 67 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 68 #else 69 extern void ld_version(); 70 extern void ld_start(); 71 extern void ld_atexit(); 72 extern void ld_file(); 73 extern void ld_input_section(); 74 extern void ld_input_done(); 75 extern void ld_section(); 76 77 #if defined(_LP64) || defined(_LONGLONG_TYPE) 78 extern void ld_start64(); 79 extern void ld_atexit64(); 80 extern void ld_file64(); 81 extern void ld_section64(); 82 83 #endif /* (defined(_LP64) || defined(_LONGLONG_TYPE) */ 84 #endif /* __STDC__ */ 85 86 /* 87 * ld_version() version values 88 */ 89 #define LD_SUP_VNONE 0 90 #define LD_SUP_VERSION1 1 91 #define LD_SUP_VERSION2 2 92 #define LD_SUP_VCURRENT LD_SUP_VERSION2 93 94 95 /* 96 * flags passed to ld support calls 97 */ 98 #define LD_SUP_DERIVED 0x1 /* derived filename */ 99 #define LD_SUP_INHERITED 0x2 /* file inherited from .so DT_NEEDED */ 100 #define LD_SUP_EXTRACTED 0x4 /* file extracted from archive */ 101 #endif 102 103 #define LM_ID_BASE 0x00 104 #define LM_ID_LDSO 0x01 105 #define LM_ID_BRAND 0x02 /* marks branded objs in rd_loadobj_t */ 106 107 #define LM_ID_NUM 3 108 109 110 #define LM_ID_NEWLM 0xff /* create a new link-map */ 111 112 113 /* 114 * Run-Time Link-Edit Auditing 115 */ 116 #define LAV_NONE 0 117 #define LAV_VERSION1 1 118 #define LAV_VERSION2 2 119 #define LAV_VERSION3 3 120 #define LAV_CURRENT LAV_VERSION3 121 #define LAV_NUM 4 122 123 /* 124 * Flags that can be or'd into the la_objopen() return code 125 */ 126 #define LA_FLG_BINDTO 0x0001 /* audit symbinds TO this object */ 127 #define LA_FLG_BINDFROM 0x0002 /* audit symbinding FROM this object */ 128 129 /* 130 * Flags that can be or'd into the 'flags' argument of la_symbind() 131 */ 132 #define LA_SYMB_NOPLTENTER 0x0001 /* disable pltenter for this symbol */ 133 #define LA_SYMB_NOPLTEXIT 0x0002 /* disable pltexit for this symbol */ 134 #define LA_SYMB_STRUCTCALL 0x0004 /* this function call passes a */ 135 /* structure as it's return code */ 136 #define LA_SYMB_DLSYM 0x0008 /* this symbol bindings is due to */ 137 /* a call to dlsym() */ 138 #define LA_SYMB_ALTVALUE 0x0010 /* alternate symbol binding returned */ 139 /* by la_symbind() */ 140 141 /* 142 * Flags that describe the object passed to la_objsearch() 143 */ 144 #define LA_SER_ORIG 0x001 /* original (needed) name */ 145 #define LA_SER_LIBPATH 0x002 /* LD_LIBRARY_PATH entry prepended */ 146 #define LA_SER_RUNPATH 0x004 /* runpath entry prepended */ 147 #define LA_SER_CONFIG 0x008 /* configuration entry prepended */ 148 #define LA_SER_DEFAULT 0x040 /* default path prepended */ 149 #define LA_SER_SECURE 0x080 /* default (secure) path prepended */ 150 151 #define LA_SER_MASK 0xfff /* mask of known flags */ 152 153 /* 154 * Flags that describe the la_activity() 155 */ 156 #define LA_ACT_CONSISTENT 0x00 /* add/deletion of objects complete */ 157 #define LA_ACT_ADD 0x01 /* objects being added */ 158 #define LA_ACT_DELETE 0x02 /* objects being deleted */ 159 160 161 #ifndef _KERNEL 162 #ifndef _ASM 163 164 #if defined(_LP64) 165 typedef long lagreg_t; 166 #else 167 typedef int lagreg_t; 168 #endif 169 170 struct _la_sparc_regs { 171 lagreg_t lr_rego0; 172 lagreg_t lr_rego1; 173 lagreg_t lr_rego2; 174 lagreg_t lr_rego3; 175 lagreg_t lr_rego4; 176 lagreg_t lr_rego5; 177 lagreg_t lr_rego6; 178 lagreg_t lr_rego7; 179 }; 180 181 #if defined(_LP64) 182 typedef struct _la_sparc_regs La_sparcv9_regs; 183 typedef struct { 184 lagreg_t lr_rsp; 185 lagreg_t lr_rbp; 186 lagreg_t lr_rdi; /* arg1 */ 187 lagreg_t lr_rsi; /* arg2 */ 188 lagreg_t lr_rdx; /* arg3 */ 189 lagreg_t lr_rcx; /* arg4 */ 190 lagreg_t lr_r8; /* arg5 */ 191 lagreg_t lr_r9; /* arg6 */ 192 } La_amd64_regs; 193 #else 194 typedef struct _la_sparc_regs La_sparcv8_regs; 195 typedef struct { 196 lagreg_t lr_esp; 197 lagreg_t lr_ebp; 198 } La_i86_regs; 199 #endif 200 201 #if !defined(_SYS_INT_TYPES_H) 202 #if defined(_LP64) || defined(_I32LPx) 203 typedef unsigned long uintptr_t; 204 #else 205 typedef unsigned int uintptr_t; 206 #endif 207 #endif 208 209 210 #ifdef __STDC__ 211 extern uint_t la_version(uint_t); 212 extern void la_activity(uintptr_t *, uint_t); 213 extern void la_preinit(uintptr_t *); 214 extern char *la_objsearch(const char *, uintptr_t *, uint_t); 215 extern uint_t la_objopen(Link_map *, Lmid_t, uintptr_t *); 216 extern uint_t la_objclose(uintptr_t *); 217 extern int la_objfilter(uintptr_t *, const char *, uintptr_t *, 218 uint_t); 219 #if defined(_LP64) 220 extern uintptr_t la_amd64_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 221 uintptr_t *, La_amd64_regs *, uint_t *, 222 const char *); 223 extern uintptr_t la_symbind64(Elf64_Sym *, uint_t, uintptr_t *, 224 uintptr_t *, uint_t *, const char *); 225 extern uintptr_t la_sparcv9_pltenter(Elf64_Sym *, uint_t, uintptr_t *, 226 uintptr_t *, La_sparcv9_regs *, uint_t *, 227 const char *); 228 extern uintptr_t la_pltexit64(Elf64_Sym *, uint_t, uintptr_t *, 229 uintptr_t *, uintptr_t, const char *); 230 #else /* !defined(_LP64) */ 231 extern uintptr_t la_symbind32(Elf32_Sym *, uint_t, uintptr_t *, 232 uintptr_t *, uint_t *); 233 extern uintptr_t la_sparcv8_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 234 uintptr_t *, La_sparcv8_regs *, uint_t *); 235 extern uintptr_t la_i86_pltenter(Elf32_Sym *, uint_t, uintptr_t *, 236 uintptr_t *, La_i86_regs *, uint_t *); 237 extern uintptr_t la_pltexit(Elf32_Sym *, uint_t, uintptr_t *, 238 uintptr_t *, uintptr_t); 239 #endif /* _LP64 */ 240 #else /* __STDC__ */ 241 extern uint_t la_version(); 242 extern void la_preinit(); 243 extern uint_t la_objopen(); 244 extern uint_t la_objclose(); 245 extern int la_objfilter(); 246 #if defined(_LP64) 247 extern uintptr_t la_sparcv9_pltenter(); 248 extern uintptr_t la_pltexit64(); 249 extern uintptr_t la_symbind64(); 250 #else /* _ILP32 */ 251 extern uintptr_t la_sparcv8_pltenter(); 252 extern uintptr_t la_i86_pltenter(); 253 extern uintptr_t la_pltexit(); 254 extern uintptr_t la_symbind32(); 255 #endif /* _LP64 */ 256 #endif /* __STDC__ */ 257 258 259 #endif /* _ASM */ 260 #endif /* _KERNEL */ 261 262 #ifdef __cplusplus 263 } 264 #endif 265 266 #endif /* _LINK_H */ 267