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 (c) 1988 AT&T 23 * All Rights Reserved 24 * 25 * 26 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #ifndef __RTLD_H 31 #define __RTLD_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 /* 36 * Common header for run-time linker. 37 */ 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #include <sys/avl.h> 41 #include <stdarg.h> 42 #include <synch.h> 43 #include <signal.h> 44 #include <errno.h> 45 #include <unistd.h> 46 #include <link.h> 47 #include <rtld.h> 48 #include <sgs.h> 49 #include <machdep.h> 50 #include <rtc.h> 51 #include <debug.h> 52 #include <msg.h> 53 #include <libc_int.h> 54 55 #ifdef __cplusplus 56 extern "C" { 57 #endif 58 59 /* 60 * Dependency search rule order. 61 */ 62 #define RPLENV 1 /* replaceable LD_LIBRARY_PATH */ 63 #define PRMENV 2 /* permanent LD_LIBRARY_PATH */ 64 #define RUNPATH 3 /* callers runpath */ 65 #define DEFAULT 4 /* default library path */ 66 67 68 /* 69 * Data structure for file class specific functions and data. 70 */ 71 typedef struct fct { 72 int (*fct_are_u_this)(Rej_desc *); /* determine type of object */ 73 ulong_t (*fct_entry_pt)(void); /* get entry point */ 74 Rt_map *(*fct_map_so)(Lm_list *, Aliste, const char *, const char *, 75 int); /* map in a shared object */ 76 void (*fct_unmap_so)(Rt_map *); /* unmap a shared object */ 77 int (*fct_needed)(Lm_list *, Aliste, Rt_map *); 78 /* determine needed objects */ 79 Sym *(*fct_lookup_sym)(Slookup *, Rt_map **, uint_t *); 80 /* initialize symbol lookup */ 81 int (*fct_reloc)(Rt_map *, uint_t); /* relocate shared object */ 82 Pnode *fct_dflt_dirs; /* list of default dirs to */ 83 /* search */ 84 Pnode *fct_secure_dirs; /* list of secure dirs to */ 85 /* search (set[ug]id) */ 86 Pnode *(*fct_fix_name)(const char *, Rt_map *, uint_t); 87 /* transpose name */ 88 char *(*fct_get_so)(const char *, const char *); 89 /* get shared object */ 90 void (*fct_dladdr)(ulong_t, Rt_map *, Dl_info *, void **, int); 91 /* get symbolic address */ 92 Sym *(*fct_dlsym)(Grp_hdl *, Slookup *, Rt_map **, uint_t *); 93 /* process dlsym request */ 94 int (*fct_verify_vers)(const char *, Rt_map *, Rt_map *); 95 /* verify versioning (ELF) */ 96 int (*fct_set_prot)(Rt_map *, int); 97 /* set protection */ 98 } Fct; 99 100 101 /* 102 * Return codes for util::anon_map(). 103 */ 104 typedef enum { 105 AM_OK, /* mmap(MAP_ANON) succeeded */ 106 AM_NOSUP, /* mmap(MAP_ANON) not supported (old OS) */ 107 AM_ERROR /* mmap(MAP_ANON) failed */ 108 } Am_ret; 109 110 111 /* 112 * Macros for getting to the file class table. 113 */ 114 #define LM_ENTRY_PT(X) ((X)->rt_fct->fct_entry_pt) 115 #define LM_UNMAP_SO(X) ((X)->rt_fct->fct_unmap_so) 116 #define LM_NEEDED(X) ((X)->rt_fct->fct_needed) 117 #define LM_LOOKUP_SYM(X) ((X)->rt_fct->fct_lookup_sym) 118 #define LM_RELOC(X) ((X)->rt_fct->fct_reloc) 119 #define LM_DFLT_DIRS(X) ((X)->rt_fct->fct_dflt_dirs) 120 #define LM_SECURE_DIRS(X) ((X)->rt_fct->fct_secure_dirs) 121 #define LM_FIX_NAME(X) ((X)->rt_fct->fct_fix_name) 122 #define LM_GET_SO(X) ((X)->rt_fct->fct_get_so) 123 #define LM_DLADDR(X) ((X)->rt_fct->fct_dladdr) 124 #define LM_DLSYM(X) ((X)->rt_fct->fct_dlsym) 125 #define LM_VERIFY_VERS(X) ((X)->rt_fct->fct_verify_vers) 126 #define LM_SET_PROT(X) ((X)->rt_fct->fct_set_prot) 127 128 129 /* 130 * Define Alist initialization sizes. 131 */ 132 #define AL_CNT_ALIAS 2 /* ALIAS() initial alist count */ 133 #define AL_CNT_DEPENDS 10 /* DEPENDS() initial alist count */ 134 #define AL_CNT_CALLERS 10 /* CALLERS() initial alist count */ 135 #define AL_CNT_GROUPS 4 /* GROUPS() initial alist count */ 136 #define AL_CNT_COPYREL 10 /* COPY() initial alist count */ 137 #define AL_CNT_LAZYFIND 10 /* elf_lazy_find_sym() initial alist */ 138 /* count */ 139 #define AL_CNT_GRPCLCT 10 /* gdp_collect() initial alist count */ 140 #define AL_CNT_DEPCLCT 10 /* load_so() initial alist count */ 141 #define AL_CNT_RTLDINFO 1 /* RTLDINFO() initial alist count */ 142 #define AL_CNT_FPNODE 2 /* FPNODE() initial alist count */ 143 #define AL_CNT_LMLISTS 8 /* lm_lists initial alist count */ 144 #define AL_CNT_LMNOW 8 /* lm_now initial alist count */ 145 #define AL_CNT_RELBIND 20 /* relocation binding alist count */ 146 147 148 /* 149 * Size of buffer for building error messages. 150 */ 151 #define ERRSIZE 2048 /* MAXPATHLEN * 2 */ 152 153 154 /* 155 * Configuration file information. 156 */ 157 typedef struct config { 158 const char *c_name; 159 Addr c_bgn; 160 Addr c_end; 161 Word *c_hashtbl; 162 Word *c_hashchain; 163 const char *c_strtbl; 164 Rtc_obj *c_objtbl; 165 Rtc_fltr *c_fltr; 166 Rtc_flte *c_flte; 167 } Config; 168 169 /* 170 * Register symbol list. 171 */ 172 typedef struct reglist { 173 Rt_map *rl_lmp; /* defining object */ 174 Sym *rl_sym; /* regsym */ 175 struct reglist *rl_next; /* next entry */ 176 } Reglist; 177 178 /* 179 * Data structure to hold interpreter information. 180 */ 181 typedef struct interp { 182 char *i_name; /* interpreter name */ 183 caddr_t i_faddr; /* address interpreter is mapped at */ 184 } Interp; 185 186 /* 187 * Data structure used to keep track of copy relocations. These relocations 188 * are collected during initial relocation processing and maintained on the 189 * COPY(lmp) list of the defining object. Each copy list is also added to the 190 * COPY(lmp) of the head object (normally the application dynamic executable) 191 * from which they will be processed after all relocations are done. 192 * 193 * The use of RTLD_GROUP will also reference individual objects COPY(lmp) lists 194 * in case a bound symbol must be assigned to it actual copy relocation. 195 */ 196 typedef struct { 197 const char *r_name; /* symbol name */ 198 Sym *r_rsym; /* reference symbol table entry */ 199 Rt_map *r_rlmp; /* reference link map */ 200 Rt_map *r_dlmp; /* definition link map */ 201 Sym *r_dsym; /* definition symbol table entry */ 202 void *r_radd; /* copy to address */ 203 const void *r_dadd; /* copy from address */ 204 ulong_t r_size; /* copy size bytes */ 205 } Rel_copy; 206 207 /* 208 * Data structure to hold initial file mapping information. Used to 209 * communicate during initial object mapping and provide for error recovery. 210 */ 211 typedef struct { 212 char *fm_maddr; /* address of initial mapping */ 213 size_t fm_msize; /* size of initial mapping */ 214 size_t fm_fsize; /* actual file size */ 215 ulong_t fm_etext; /* end of text segment */ 216 int fm_mflags; /* mapping flags */ 217 ulong_t fm_hwptr; /* hardware capabilities pointer */ 218 } Fmap; 219 220 #define FMAP_SIZE 0x8000 /* initial size to map from a file */ 221 /* big enough to capture standard */ 222 /* filters */ 223 /* 224 * Define a file descriptor, which maintains information regarding a pathname 225 * that has been opened and minimally inspected. 226 */ 227 typedef struct { 228 Rt_map *fd_lmp; /* existing link-map pointer */ 229 Fct *fd_ftp; /* file functions pointer */ 230 const char *fd_oname; /* original file name */ 231 const char *fd_odir; /* original directory name */ 232 const char *fd_nname; /* new file (expanded) name */ 233 const char *fd_pname; /* new path (resolved) name */ 234 dev_t fd_dev; /* file device number */ 235 ino_t fd_ino; /* file inode number */ 236 int fd_fd; /* open file descriptor */ 237 uint_t fd_flags; 238 avl_index_t fd_avlwhere; /* avl tree insertion index */ 239 Fmap fd_fmap; /* file mapping information */ 240 } Fdesc; 241 242 #define FLG_FD_ALTER 0x01 /* file is an alternate */ 243 #define FLG_FD_SLASH 0x02 /* file contains a "/" */ 244 245 /* 246 * File descriptor availability flag. 247 */ 248 #define FD_UNAVAIL -1 249 250 /* 251 * Disabled filter flag. Filter objects are referenced using their .dynamic 252 * index (DT_FILTER or DT_AUXILIARY). This index is saved and used to lookup 253 * the required filter. Note that 0 is a valid .dynamic index. The caller's 254 * OBJFLTRNDX() element is initialized using the following flag, and should 255 * the filter's initialization fail, is reset to this value to indicate the 256 * filter is disabled. UINT_MAX provides a convenient invalid .dynamic index. 257 */ 258 #define FLTR_DISABLED UINT_MAX 259 260 /* 261 * Status flags for rtld_flags 262 */ 263 #define RT_FL_THREADS 0x00000001 /* threads are enabled */ 264 #define RT_FL_WARNFLTR 0x00000002 /* warn of missing filtees (ldd) */ 265 #define RT_FL_DBNOTIF 0x00000004 /* binding activity going on */ 266 267 #ifdef SIEBEL_DISABLE 268 #define RT_FL_DISFIX_1 0x00000008 /* disable fix number 1 */ 269 #endif 270 271 #define RT_FL_NOBIND 0x00000010 /* don't carry out plt binding */ 272 #define RT_FL_NOVERSION 0x00000020 /* disable version checking */ 273 #define RT_FL_SECURE 0x00000040 /* setuid/segid flag */ 274 #define RT_FL_APPLIC 0x00000080 /* are we executing user code */ 275 #define RT_FL_CONCUR 0x00000100 /* thread concurrency checks required */ 276 #define RT_FL_CONFGEN 0x00000200 /* don't relocate initiating object */ 277 /* set by crle(1). */ 278 #define RT_FL_CONFAPP 0x00000400 /* application specific configuration */ 279 /* cache required */ 280 #define RT_FL_DEBUGGER 0x00000800 /* a debugger is monitoring us */ 281 #define RT_FL_AUNOTIF 0x00001000 /* audit activity going on */ 282 #define RT_FL_NEWLOCALE 0x00002000 /* message locale has changed */ 283 #define RT_FL_NOBAPLT 0x00004000 /* sparc: don't use ba plt's */ 284 #define RT_FL_NOAUXFLTR 0x00008000 /* disable auxiliary filters */ 285 #define RT_FL_NOCONCUR 0x00010000 /* disable thread concurrency checks */ 286 #define RT_FL_NOAUDIT 0x00020000 /* disable auditing */ 287 #define RT_FL_ATEXIT 0x00040000 /* we're shutting down */ 288 #define RT_FL_SILENCERR 0x00080000 /* silence error messages */ 289 #define RT_FL_BREADTH 0x00100000 /* use breadth-first for .init/.fini */ 290 #define RT_FL_INITFIRST 0x00200000 /* processing a DT_INITFIRST object */ 291 #define RT_FL_RELATIVE 0x00400000 /* relative path expansion required */ 292 #define RT_FL_EXECNAME 0x00800000 /* AT_SUN_EXECNAME vector is avail */ 293 #define RT_FL_DEMANGLE 0x01000000 /* demangle C++ symbol names */ 294 #define RT_FL_NOCFG 0x02000000 /* disable config file use */ 295 #define RT_FL_NODIRCFG 0x04000000 /* disable directory config use */ 296 #define RT_FL_NOOBJALT 0x08000000 /* disable object alternative use */ 297 #define RT_FL_NOENVCFG 0x10000000 /* disable config envars use */ 298 #define RT_FL_DIRCFG 0x20000000 /* directory config info available */ 299 #define RT_FL_OBJALT 0x40000000 /* object alternatives are available */ 300 #define RT_FL_MEMRESV 0x80000000 /* memory reservation established */ 301 302 /* 303 * Status flags for rtld_flags2 304 */ 305 #define RT_FL2_HASAUDIT 0x00000001 /* auditing lm_list is present */ 306 #define RT_FL2_RTLDSEEN 0x00000002 /* rtldinfo has been set */ 307 #define RT_FL2_UNIFPROC 0x00000004 /* libc/libthread unified environment */ 308 #define RT_FL2_NOMALIGN 0x00000008 /* mmap MAP_ALIGN isn't available */ 309 #define RT_FL2_NOFLTCFG 0x00000010 /* disable config filter use */ 310 #define RT_FL2_FLTCFG 0x00000020 /* filter config info available */ 311 #define RT_FL2_HWCAP 0x00000040 /* hardware capabilities available */ 312 #define RT_FL2_FTL2WARN 0x00000080 /* convert fatal to warning messages */ 313 #define RT_FL2_BINDNOW 0x00000100 /* LD_BIND_NOW in effect */ 314 #define RT_FL2_BINDLAZY 0x00000200 /* disable RTLD_NOW (and LD_BIND_NOW) */ 315 #define RT_FL2_PLMSETUP 0x00000400 /* primary link-map set up complete */ 316 #define RT_FL2_BRANDED 0x00000800 /* Process is branded */ 317 318 /* 319 * Information flags for env_info. 320 */ 321 #define ENV_INF_PATHCFG 0x00000001 /* replaceable LD_LIBRARY_PATH */ 322 /* originates from configuration */ 323 /* file */ 324 #define ENV_INF_FLAGCFG 0x00000002 /* replaceable LD_FLAGS originates */ 325 /* from configuration file */ 326 327 /* 328 * RTLDINFO descriptor. 329 */ 330 typedef struct { 331 Rt_map *rti_lmp; /* RTLDINFO provider */ 332 Lc_interface *rti_info; /* RTLDINFO data */ 333 } Rti_desc; 334 335 /* 336 * Binding flags for the bindguard routines. 337 */ 338 #define THR_FLG_RTLD 0x00000001 /* rtldlock bind_guard() flag */ 339 #define THR_FLG_MASK THR_FLG_RTLD /* mask for all THR_FLG flags */ 340 341 #define ROUND(x, a) (((int)(x) + ((int)(a) - 1)) & \ 342 ~((int)(a) - 1)) 343 344 /* 345 * Print buffer. 346 */ 347 typedef struct { 348 char *pr_buf; /* pointer to beginning of buffer */ 349 char *pr_cur; /* pointer to next free char in buffer */ 350 size_t pr_len; /* buffer size */ 351 int pr_fd; /* output fd */ 352 } Prfbuf; 353 354 /* 355 * dlopen() handle list size. 356 */ 357 #define HDLIST_SZ 101 /* prime no. for hashing */ 358 #define HDLIST_ORP 102 /* orphan handle list */ 359 360 /* 361 * Define expansion path information. Search paths, i.e., LD_LIBRARY_PATH, 362 * RPATHS, etc. are defined using la_objsearch() information (see LA_SER flags 363 * in link.h). Definitions here extend the path information to other uses of 364 * pathname expansion, and are or'd together with any LA_SER_* flags. 365 */ 366 #define PN_SER_NEEDED 0x00001000 /* paths define DT_NEEDED entry */ 367 #define PN_SER_FILTEE 0x00002000 /* paths define filtees */ 368 #define PN_SER_EXTLOAD 0x00004000 /* paths define extra loaded objects */ 369 /* (preload, audit etc.) */ 370 #define PN_SER_DLOPEN 0x00008000 /* paths define dlopen() request */ 371 372 #define PN_SER_MASK 0x000ff000 /* mask for p_orig incorporation */ 373 374 /* 375 * Define reserved path tokens. These are used to prevent various expansions 376 * from occurring, and record those expansions that do. Note that any expansion 377 * information is also recorded in the p_orig field of a Pnode, and thus is 378 * or'd together with any LA_SER_* flags. 379 */ 380 #define PN_TKN_ORIGIN 0x00100000 /* $ORIGIN expansion has occurred */ 381 #define PN_TKN_PLATFORM 0x00200000 /* $PLATFORM expansion has occurred */ 382 #define PN_TKN_OSNAME 0x00400000 /* $OSNAME expansion has occurred */ 383 #define PN_TKN_OSREL 0x00800000 /* $OSREL expansion has occurred */ 384 #define PN_TKN_ISALIST 0x01000000 /* $ISALIST expansion has occurred */ 385 #define PN_TKN_HWCAP 0x02000000 /* $HWCAP expansion has occurred */ 386 387 #define PN_TKN_MASK 0xfff00000 /* mask for p_orig incorporation */ 388 389 #define TKN_NONE 0x00000001 /* no token expansion has occurred */ 390 #define TKN_DOTSLASH 0x00000002 /* path contains a "./" */ 391 392 /* 393 * Define alist descriptor addition return values (see hdl_add()). 394 */ 395 #define ALE_EXISTS 1 /* alist entry already exists */ 396 #define ALE_CREATE 2 /* alist entry created */ 397 398 /* 399 * Define _caller flags. 400 */ 401 #define CL_NONE 0 402 #define CL_EXECDEF 1 /* supply the executable as a default */ 403 /* if the caller can't be determined */ 404 405 /* 406 * Binding information. Note, this is or'ed in with the DBG_BINFO flags to 407 * convey information regarding symbol bindings. 408 */ 409 #define BINFO_DIRECTDIS 0x10000 /* a direct binding has been disabled */ 410 411 /* 412 * Data declarations. 413 */ 414 extern Lc_desc glcs[]; /* global external interfaces */ 415 416 extern Rt_lock rtldlock; /* rtld lock */ 417 418 extern List dynlm_list; /* dynamic list of link-maps */ 419 extern char **environ; /* environ pointer */ 420 421 extern int dyn_plt_ent_size; /* Size of dynamic plt's */ 422 extern ulong_t at_flags; /* machine specific file flags */ 423 extern const char *procname; /* file name of executing process */ 424 extern Rtld_db_priv r_debug; /* debugging information */ 425 extern char *lasterr; /* string describing last error */ 426 extern Interp *interp; /* ELF executable interpreter info */ 427 extern const char *rtldname; /* name of the dynamic linker */ 428 extern List hdl_list[]; /* dlopen() handle list */ 429 extern size_t syspagsz; /* system page size */ 430 extern char *platform; /* platform name */ 431 extern size_t platform_sz; /* platform name string size */ 432 extern Isa_desc *isa; /* isalist descriptor */ 433 extern Uts_desc *uts; /* utsname descriptor */ 434 extern uint_t rtld_flags; /* status flags for RTLD */ 435 extern uint_t rtld_flags2; /* additional status flags for RTLD */ 436 extern Fmap *fmap; /* Initial file mapping info */ 437 extern uint32_t pltcnt21d; /* cnt of 21d PLTs */ 438 extern uint32_t pltcnt24d; /* cnt of 24d PLTs */ 439 extern uint32_t pltcntu32; /* cnt of u32 PLTs */ 440 extern uint32_t pltcntu44; /* cnt of u44 PLTs */ 441 extern uint32_t pltcntfull; /* cnt of full PLTs */ 442 extern uint32_t pltcntfar; /* cnt of far PLTs */ 443 extern uchar_t search_rules[]; /* dependency search rules */ 444 445 extern Fct elf_fct; /* ELF file class dependent data */ 446 447 #if defined(__sparc) && !defined(__sparcv9) 448 extern Fct aout_fct; /* a.out (4.x) file class dependent */ 449 /* data */ 450 #endif 451 452 extern const char *locale; /* locale environment setting */ 453 454 extern Config *config; /* configuration structure */ 455 extern const char *locale; /* locale environment setting */ 456 457 extern const char *rpl_audit; /* replaceable LD_AUDIT string */ 458 extern const char *rpl_debug; /* replaceable LD_DEBUG string */ 459 extern const char *rpl_ldflags; /* replaceable LD_FLAGS string */ 460 extern const char *rpl_libpath; /* replaceable LD_LIBRARY string */ 461 extern Pnode *rpl_libdirs; /* and its associated Pnode list */ 462 extern const char *rpl_preload; /* replaceable LD_PRELOAD string */ 463 464 extern const char *prm_audit; /* permanent LD_AUDIT string */ 465 extern const char *prm_debug; /* permanent LD_DEBUG string */ 466 extern const char *prm_ldflags; /* permanent LD_FLAGS string */ 467 extern const char *prm_libpath; /* permanent LD_LIBRARY string */ 468 extern Pnode *prm_libdirs; /* and its associated Pnode list */ 469 extern const char *prm_preload; /* permanent LD_PRELOAD string */ 470 471 extern uint_t env_info; /* information regarding environment */ 472 /* variables */ 473 extern int killsig; /* signal sent on fatal exit */ 474 475 extern uint_t audit_argcnt; /* no. of stack args to copy */ 476 extern Audit_desc *auditors; /* global auditors */ 477 478 extern char **_environ; 479 480 extern const char *dbg_file; /* debugging directed to a file */ 481 482 extern Reglist *reglist; /* list of register symbols */ 483 484 extern const Msg err_reject[]; /* rejection error message tables */ 485 extern const Msg ldd_reject[]; 486 487 extern const char *profile_name; /* object being profiled */ 488 extern const char *profile_out; /* profile output file */ 489 extern const char *profile_lib; /* audit library to perform profile */ 490 491 extern Dl_argsinfo argsinfo; /* process argument, environment and */ 492 /* auxv information */ 493 494 extern const char *err_strs[]; /* diagnostic error string headers */ 495 extern const char *nosym_str; /* MSG_GEN_NOSYM message cache */ 496 497 extern ulong_t hwcap; /* hardware capabilities */ 498 extern ulong_t sfcap; /* software capabilities */ 499 500 /* 501 * Function declarations. 502 */ 503 extern void addfree(void *, size_t); 504 extern void * alist_append(Alist **, const void *, size_t, int); 505 extern int alist_delete(Alist *, const void *, Aliste *); 506 extern int alist_test(Alist **, void *, size_t, int); 507 extern int append_alias(Rt_map *, const char *, int *); 508 extern int analyze_lmc(Lm_list *, Aliste, Rt_map *); 509 extern Am_ret anon_map(Lm_list *, caddr_t *, size_t, int, int); 510 extern Fct *are_u_this(Rej_desc *, int, struct stat *, 511 const char *); 512 extern void atexit_fini(void); 513 extern int bind_one(Rt_map *, Rt_map *, uint_t); 514 extern int bufprint(Prfbuf *, const char *, ...); 515 extern void call_array(Addr *, uint_t, Rt_map *, Word); 516 extern void call_fini(Lm_list *, Rt_map **); 517 extern void call_init(Rt_map **, int); 518 extern int callable(Rt_map *, Rt_map *, Grp_hdl *); 519 extern Rt_map *_caller(caddr_t, int); 520 extern caddr_t caller(void); 521 extern void *calloc(size_t, size_t); 522 extern void cap_assign(Cap *, Rt_map *); 523 extern const char *_conv_reloc_type(uint_t rel); 524 extern uintptr_t dbg_setup(const char *, Dbg_desc *); 525 extern const char *demangle(const char *); 526 extern int dlclose_intn(Grp_hdl *, Rt_map *); 527 extern int dlclose_core(Grp_hdl *, Rt_map *, Lm_list *); 528 extern Sym *dlsym_handle(Grp_hdl *, Slookup *, Rt_map **, 529 uint_t *); 530 extern void *dlsym_intn(void *, const char *, Rt_map *, Rt_map **); 531 extern Grp_hdl *dlmopen_intn(Lm_list *, const char *, int, Rt_map *, 532 uint_t, uint_t, int *); 533 extern size_t doprf(const char *, va_list, Prfbuf *); 534 extern int dowrite(Prfbuf *); 535 extern void dz_init(int); 536 extern caddr_t dz_map(Lm_list *, caddr_t, size_t, int, int); 537 extern int elf_config(Rt_map *, int); 538 extern int elf_mach_flags_check(Rej_desc *, Ehdr *); 539 extern Rtc_obj *elf_config_ent(const char *, Word, int, const char **); 540 extern Pnode *elf_config_flt(Lm_list *, const char *, const char *); 541 extern ulong_t elf_hash(const char *); 542 extern void elf_reloc_bad(Rt_map *, void *, uchar_t, ulong_t, 543 ulong_t); 544 extern ulong_t elf_reloc_relative(ulong_t, ulong_t, ulong_t, 545 ulong_t, ulong_t, ulong_t); 546 extern ulong_t elf_reloc_relacount(ulong_t, ulong_t, 547 ulong_t, ulong_t); 548 extern long elf_static_tls(Rt_map *, Sym *, void *, uchar_t, char *, 549 ulong_t, long); 550 extern int enter(void); 551 extern uint_t expand(char **, size_t *, char **, uint_t, uint_t, 552 Rt_map *); 553 extern Pnode *expand_paths(Rt_map *, const char *, uint_t, uint_t); 554 extern void free_hdl(Grp_hdl *); 555 extern void file_notfound(Lm_list *, const char *, Rt_map *, 556 uint_t, Rej_desc *); 557 extern int find_path(Lm_list *, const char *, Rt_map *, uint_t, 558 Fdesc *, Rej_desc *); 559 extern int fpavl_insert(Lm_list *, Rt_map *, const char *, 560 avl_index_t); 561 extern Rt_map *fpavl_loaded(Lm_list *, const char *, avl_index_t *); 562 extern void fpavl_remove(Rt_map *); 563 extern size_t fullpath(Rt_map *, const char *); 564 extern void fmap_setup(); 565 extern void get_lcinterface(Rt_map *, Lc_interface *); 566 extern Lmid_t get_linkmap_id(Lm_list *); 567 extern Pnode *get_next_dir(Pnode **, Rt_map *, uint_t); 568 extern int hdl_add(Grp_hdl *, Rt_map *, uint_t); 569 extern Grp_hdl *hdl_create(Lm_list *, Rt_map *, Rt_map *, uint_t); 570 extern int hdl_initialize(Grp_hdl *, Rt_map *, int, int); 571 extern int hwcap_check(Rej_desc *, Ehdr *); 572 extern Pnode *hwcap_filtees(Pnode **, Aliste, Lm_cntl *, Dyninfo *, 573 Rt_map *, const char *, int, uint_t); 574 extern void is_dep_ready(Rt_map *, Rt_map *, int); 575 extern void is_dep_init(Rt_map *, Rt_map *); 576 extern int is_sym_interposer(Rt_map *, Sym *); 577 extern void ldso_plt_init(Rt_map *); 578 extern Listnode *list_append(List *, const void *); 579 extern Listnode *list_insert(List *, const void *, Listnode *); 580 extern Listnode *list_prepend(List *, const void *); 581 extern void list_delete(List *, void *); 582 extern void leave(Lm_list *); 583 extern void lm_append(Lm_list *, Aliste, Rt_map *); 584 extern void lm_delete(Lm_list *, Rt_map *); 585 extern void lm_move(Lm_list *, Aliste, Aliste, Lm_cntl *, 586 Lm_cntl *); 587 extern void load_completion(Rt_map *, Rt_map *); 588 extern Rt_map *load_hwcap(Lm_list *, Aliste, const char *, Rt_map *, 589 uint_t, uint_t, Grp_hdl **, Rej_desc *); 590 extern Rt_map *load_path(Lm_list *, Aliste, const char *, Rt_map *, 591 int, uint_t, Grp_hdl **, Fdesc *, Rej_desc *); 592 extern Rt_map *load_one(Lm_list *, Aliste, Pnode *, Rt_map *, int, 593 uint_t, Grp_hdl **); 594 extern const char *load_trace(Lm_list *, const char *, Rt_map *); 595 extern caddr_t nu_map(Lm_list *, caddr_t, size_t, int, int); 596 extern void *malloc(size_t); 597 extern void move_data(Rt_map *); 598 extern int pr_open(Lm_list *); 599 extern void rd_event(Lm_list *, rd_event_e, r_state_e); 600 extern int readenv_user(const char **, Word *, Word *, int); 601 extern int readenv_config(Rtc_env *, Addr, int); 602 extern void rejection_inherit(Rej_desc *, Rej_desc *); 603 extern int relocate_lmc(Lm_list *, Aliste, Rt_map *, Rt_map *); 604 extern int relocate_finish(Rt_map *, Alist *, int, int); 605 extern void remove_cntl(Lm_list *, Aliste); 606 extern int remove_hdl(Grp_hdl *, Rt_map *, int *); 607 extern void remove_lmc(Lm_list *, Rt_map *, Lm_cntl *, Aliste, 608 const char *); 609 extern void remove_incomplete(Lm_list *, Aliste); 610 extern void remove_lists(Rt_map *, int); 611 extern void remove_lml(Lm_list *); 612 extern void remove_pnode(Pnode *); 613 extern void remove_rej(Rej_desc *); 614 extern void remove_so(Lm_list *, Rt_map *); 615 extern int rt_cond_broadcast(Rt_cond *); 616 extern Rt_cond *rt_cond_create(void); 617 extern int rt_cond_wait(Rt_cond *, Rt_lock *); 618 extern int rt_bind_guard(int); 619 extern int rt_bind_clear(int); 620 extern int rt_get_extern(Lm_list *, Rt_map *); 621 extern int rt_mutex_lock(Rt_lock *); 622 extern int rt_mutex_unlock(Rt_lock *); 623 extern void rt_thr_init(Lm_list *); 624 extern thread_t rt_thr_self(void); 625 extern void rtld_db_dlactivity(Lm_list *); 626 extern void rtld_db_preinit(Lm_list *); 627 extern void rtld_db_postinit(Lm_list *); 628 extern void rtldexit(Lm_list *, int); 629 extern int rtld_getopt(char **, char ***, auxv_t **, Word *, 630 Word *, int); 631 extern void security(uid_t, uid_t, gid_t, gid_t, int); 632 extern void set_environ(Lm_list *); 633 extern Rt_map *setup(char **, auxv_t *, Word, char *, int, char *, 634 Dyn *, ulong_t, ulong_t, int fd, Phdr *, char *, 635 char **, int, uid_t, uid_t, gid_t, gid_t, void *, 636 int, uint_t); 637 extern int tls_assign(Lm_list *, Rt_map *, Phdr *); 638 extern void tls_modaddrem(Rt_map *, uint_t); 639 extern int tls_statmod(Lm_list *, Rt_map *); 640 extern Rt_map **tsort(Rt_map *, int, int); 641 extern void unused(Lm_list *); 642 extern int update_mode(Rt_map *, int, int); 643 extern void zero(caddr_t, size_t); 644 645 #if defined(__sparc) 646 /* 647 * SPARC Register symbol support. 648 */ 649 extern int elf_regsyms(Rt_map *); 650 extern void set_sparc_g1(ulong_t); 651 extern void set_sparc_g2(ulong_t); 652 extern void set_sparc_g3(ulong_t); 653 extern void set_sparc_g4(ulong_t); 654 extern void set_sparc_g5(ulong_t); 655 extern void set_sparc_g6(ulong_t); 656 extern void set_sparc_g7(ulong_t); 657 #endif 658 659 extern long _sysconfig(int); 660 661 #ifdef __cplusplus 662 } 663 #endif 664 665 #endif /* __RTLD_H */ 666