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 2008 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, 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 *, int *); 78 /* determine needed objects */ 79 Sym *(*fct_lookup_sym)(Slookup *, Rt_map **, uint_t *, int *); 80 /* initialize symbol lookup */ 81 int (*fct_reloc)(Rt_map *, uint_t, int *); 82 /* relocate shared object */ 83 Pnode *fct_dflt_dirs; /* list of default dirs to */ 84 /* search */ 85 Pnode *fct_secure_dirs; /* list of secure dirs to */ 86 /* search (set[ug]id) */ 87 Pnode *(*fct_fix_name)(const char *, Rt_map *, uint_t); 88 /* transpose name */ 89 char *(*fct_get_so)(const char *, const char *); 90 /* get shared object */ 91 void (*fct_dladdr)(ulong_t, Rt_map *, Dl_info *, void **, int); 92 /* get symbolic address */ 93 Sym *(*fct_dlsym)(Grp_hdl *, Slookup *, Rt_map **, uint_t *, 94 int *); /* process dlsym request */ 95 int (*fct_verify_vers)(const char *, Rt_map *, Rt_map *); 96 /* verify versioning (ELF) */ 97 int (*fct_set_prot)(Rt_map *, int); 98 /* set protection */ 99 } Fct; 100 101 102 /* 103 * Return codes for util::anon_map(). 104 */ 105 typedef enum { 106 AM_OK, /* mmap(MAP_ANON) succeeded */ 107 AM_NOSUP, /* mmap(MAP_ANON) not supported (old OS) */ 108 AM_ERROR /* mmap(MAP_ANON) failed */ 109 } Am_ret; 110 111 112 /* 113 * Macros for getting to the file class table. 114 */ 115 #define LM_ENTRY_PT(X) ((X)->rt_fct->fct_entry_pt) 116 #define LM_UNMAP_SO(X) ((X)->rt_fct->fct_unmap_so) 117 #define LM_NEEDED(X) ((X)->rt_fct->fct_needed) 118 #define LM_LOOKUP_SYM(X) ((X)->rt_fct->fct_lookup_sym) 119 #define LM_RELOC(X) ((X)->rt_fct->fct_reloc) 120 #define LM_DFLT_DIRS(X) ((X)->rt_fct->fct_dflt_dirs) 121 #define LM_SECURE_DIRS(X) ((X)->rt_fct->fct_secure_dirs) 122 #define LM_FIX_NAME(X) ((X)->rt_fct->fct_fix_name) 123 #define LM_GET_SO(X) ((X)->rt_fct->fct_get_so) 124 #define LM_DLADDR(X) ((X)->rt_fct->fct_dladdr) 125 #define LM_DLSYM(X) ((X)->rt_fct->fct_dlsym) 126 #define LM_VERIFY_VERS(X) ((X)->rt_fct->fct_verify_vers) 127 #define LM_SET_PROT(X) ((X)->rt_fct->fct_set_prot) 128 129 130 /* 131 * Define Alist initialization sizes. 132 */ 133 #define AL_CNT_ALIAS 2 /* ALIAS() initial alist count */ 134 #define AL_CNT_DEPENDS 10 /* DEPENDS() initial alist count */ 135 #define AL_CNT_CALLERS 10 /* CALLERS() initial alist count */ 136 #define AL_CNT_GROUPS 4 /* GROUPS() initial alist count */ 137 #define AL_CNT_COPYREL 10 /* COPY() initial alist count */ 138 #define AL_CNT_LAZYFIND 10 /* elf_lazy_find_sym() initial alist */ 139 /* count */ 140 #define AL_CNT_GRPCLCT 10 /* gdp_collect() initial alist count */ 141 #define AL_CNT_DEPCLCT 10 /* load_so() initial alist count */ 142 #define AL_CNT_RTLDINFO 1 /* RTLDINFO() initial alist count */ 143 #define AL_CNT_FPNODE 2 /* FPNODE() initial alist count */ 144 #define AL_CNT_LMLISTS 8 /* lm_lists initial alist count */ 145 #define AL_CNT_LMNOW 8 /* lm_now initial alist count */ 146 #define AL_CNT_RELBIND 20 /* relocation binding alist count */ 147 #define AL_CNT_ACTAUDIT 2 /* lm_actaudit alist count */ 148 #define AL_CNT_MOVES 10 /* move_data alist count */ 149 150 151 /* 152 * Size of buffer for building error messages. 153 */ 154 #define ERRSIZE 2048 /* MAXPATHLEN * 2 */ 155 156 157 /* 158 * Configuration file information. 159 */ 160 typedef struct config { 161 const char *c_name; 162 Addr c_bgn; 163 Addr c_end; 164 Word *c_hashtbl; 165 Word *c_hashchain; 166 const char *c_strtbl; 167 Rtc_obj *c_objtbl; 168 Rtc_fltr *c_fltr; 169 Rtc_flte *c_flte; 170 } Config; 171 172 /* 173 * Register symbol list. 174 */ 175 typedef struct reglist { 176 Rt_map *rl_lmp; /* defining object */ 177 Sym *rl_sym; /* regsym */ 178 struct reglist *rl_next; /* next entry */ 179 } Reglist; 180 181 /* 182 * Data structure to hold interpreter information. 183 */ 184 typedef struct interp { 185 char *i_name; /* interpreter name */ 186 caddr_t i_faddr; /* address interpreter is mapped at */ 187 } Interp; 188 189 /* 190 * Data structure used to keep track of copy relocations. These relocations 191 * are collected during initial relocation processing and maintained on the 192 * COPY(lmp) list of the defining object. Each copy list is also added to the 193 * COPY(lmp) of the head object (normally the application dynamic executable) 194 * from which they will be processed after all relocations are done. 195 * 196 * The use of RTLD_GROUP will also reference individual objects COPY(lmp) lists 197 * in case a bound symbol must be assigned to it actual copy relocation. 198 */ 199 typedef struct { 200 const char *r_name; /* symbol name */ 201 Sym *r_rsym; /* reference symbol table entry */ 202 Rt_map *r_rlmp; /* reference link map */ 203 Rt_map *r_dlmp; /* definition link map */ 204 Sym *r_dsym; /* definition symbol table entry */ 205 void *r_radd; /* copy to address */ 206 const void *r_dadd; /* copy from address */ 207 ulong_t r_size; /* copy size bytes */ 208 } Rel_copy; 209 210 /* 211 * Data structure to hold initial file mapping information. Used to 212 * communicate during initial object mapping and provide for error recovery. 213 */ 214 typedef struct { 215 char *fm_maddr; /* address of initial mapping */ 216 size_t fm_msize; /* size of initial mapping */ 217 size_t fm_fsize; /* actual file size */ 218 ulong_t fm_etext; /* end of text segment */ 219 int fm_mflags; /* mapping flags */ 220 ulong_t fm_hwptr; /* hardware capabilities pointer */ 221 } Fmap; 222 223 #define FMAP_SIZE 0x8000 /* initial size to map from a file */ 224 /* big enough to capture standard */ 225 /* filters */ 226 /* 227 * Define a file descriptor, which maintains information regarding a pathname 228 * that has been opened and minimally inspected. 229 */ 230 typedef struct { 231 Rt_map *fd_lmp; /* existing link-map pointer */ 232 Fct *fd_ftp; /* file functions pointer */ 233 const char *fd_oname; /* original file name */ 234 const char *fd_odir; /* original directory name */ 235 const char *fd_nname; /* new file (expanded) name */ 236 const char *fd_pname; /* new path (resolved) name */ 237 dev_t fd_dev; /* file device number */ 238 ino_t fd_ino; /* file inode number */ 239 int fd_fd; /* open file descriptor */ 240 uint_t fd_flags; 241 avl_index_t fd_avlwhere; /* avl tree insertion index */ 242 Fmap fd_fmap; /* file mapping information */ 243 } Fdesc; 244 245 #define FLG_FD_ALTER 0x01 /* file is an alternate */ 246 #define FLG_FD_SLASH 0x02 /* file contains a "/" */ 247 248 /* 249 * File descriptor availability flag. 250 */ 251 #define FD_UNAVAIL -1 252 253 /* 254 * Disabled filter flag. Filter objects are referenced using their .dynamic 255 * index (DT_FILTER or DT_AUXILIARY). This index is saved and used to lookup 256 * the required filter. Note that 0 is a valid .dynamic index. The caller's 257 * OBJFLTRNDX() element is initialized using the following flag, and should 258 * the filter's initialization fail, is reset to this value to indicate the 259 * filter is disabled. UINT_MAX provides a convenient invalid .dynamic index. 260 */ 261 #define FLTR_DISABLED UINT_MAX 262 263 /* 264 * Status flags for rtld_flags 265 */ 266 #define RT_FL_THREADS 0x00000001 /* threads are enabled */ 267 #define RT_FL_WARNFLTR 0x00000002 /* warn of missing filtees (ldd) */ 268 #define RT_FL_DBNOTIF 0x00000004 /* binding activity going on */ 269 270 #ifdef SIEBEL_DISABLE 271 #define RT_FL_DISFIX_1 0x00000008 /* disable fix number 1 */ 272 #endif 273 274 #define RT_FL_NOBIND 0x00000010 /* don't carry out plt binding */ 275 #define RT_FL_NOVERSION 0x00000020 /* disable version checking */ 276 #define RT_FL_SECURE 0x00000040 /* setuid/segid flag */ 277 #define RT_FL_APPLIC 0x00000080 /* are we executing user code */ 278 #define RT_FL_CONCUR 0x00000100 /* thread concurrency checks required */ 279 #define RT_FL_CONFGEN 0x00000200 /* don't relocate initiating object */ 280 /* set by crle(1). */ 281 #define RT_FL_CONFAPP 0x00000400 /* application specific configuration */ 282 /* cache required */ 283 #define RT_FL_DEBUGGER 0x00000800 /* a debugger is monitoring us */ 284 #define RT_FL_OPERATION 0x00001000 /* start recording operations */ 285 #define RT_FL_NEWLOCALE 0x00002000 /* message locale has changed */ 286 #define RT_FL_NOBAPLT 0x00004000 /* sparc: don't use ba plt's */ 287 #define RT_FL_NOAUXFLTR 0x00008000 /* disable auxiliary filters */ 288 #define RT_FL_NOCONCUR 0x00010000 /* disable thread concurrency checks */ 289 #define RT_FL_NOAUDIT 0x00020000 /* disable auditing */ 290 #define RT_FL_ATEXIT 0x00040000 /* we're shutting down */ 291 #define RT_FL_SILENCERR 0x00080000 /* silence error messages */ 292 #define RT_FL_BREADTH 0x00100000 /* use breadth-first for .init/.fini */ 293 #define RT_FL_INITFIRST 0x00200000 /* processing a DT_INITFIRST object */ 294 #define RT_FL_RELATIVE 0x00400000 /* relative path expansion required */ 295 #define RT_FL_EXECNAME 0x00800000 /* AT_SUN_EXECNAME vector is avail */ 296 #define RT_FL_DEMANGLE 0x01000000 /* demangle C++ symbol names */ 297 #define RT_FL_NOCFG 0x02000000 /* disable config file use */ 298 #define RT_FL_NODIRCFG 0x04000000 /* disable directory config use */ 299 #define RT_FL_NOOBJALT 0x08000000 /* disable object alternative use */ 300 #define RT_FL_NOENVCFG 0x10000000 /* disable config envars use */ 301 #define RT_FL_DIRCFG 0x20000000 /* directory config info available */ 302 #define RT_FL_OBJALT 0x40000000 /* object alternatives are available */ 303 #define RT_FL_MEMRESV 0x80000000 /* memory reservation established */ 304 305 /* 306 * Status flags for rtld_flags2 307 */ 308 #define RT_FL2_HASAUDIT 0x00000001 /* auditing lm_list is present */ 309 #define RT_FL2_RTLDSEEN 0x00000002 /* rtldinfo has been set */ 310 #define RT_FL2_UNIFPROC 0x00000004 /* libc/libthread unified environment */ 311 #define RT_FL2_NOMALIGN 0x00000008 /* mmap MAP_ALIGN isn't available */ 312 #define RT_FL2_NOFLTCFG 0x00000010 /* disable config filter use */ 313 #define RT_FL2_FLTCFG 0x00000020 /* filter config info available */ 314 #define RT_FL2_HWCAP 0x00000040 /* hardware capabilities available */ 315 #define RT_FL2_FTL2WARN 0x00000080 /* convert fatal to warning messages */ 316 #define RT_FL2_BINDNOW 0x00000100 /* LD_BIND_NOW in effect */ 317 #define RT_FL2_BINDLAZY 0x00000200 /* disable RTLD_NOW (and LD_BIND_NOW) */ 318 #define RT_FL2_PLMSETUP 0x00000400 /* primary link-map set up complete */ 319 #define RT_FL2_BRANDED 0x00000800 /* process is branded */ 320 #define RT_FL2_NOPLM 0x00001000 /* process has no primary link map */ 321 322 /* 323 * Information flags for env_info. 324 */ 325 #define ENV_INF_PATHCFG 0x00000001 /* replaceable LD_LIBRARY_PATH */ 326 /* originates from configuration */ 327 /* file */ 328 #define ENV_INF_FLAGCFG 0x00000002 /* replaceable LD_FLAGS originates */ 329 /* from configuration file */ 330 331 /* 332 * RTLDINFO descriptor. 333 */ 334 typedef struct { 335 Rt_map *rti_lmp; /* RTLDINFO provider */ 336 Lc_interface *rti_info; /* RTLDINFO data */ 337 } Rti_desc; 338 339 /* 340 * Binding flags for the bindguard routines. 341 * These are defined in usr/src/lib/libc/inc/libc_int.h in the 342 * latest version of the libc/rtld runtime interface (CI_V_FIVE). 343 */ 344 #if !defined(CI_V_FIVE) 345 #define THR_FLG_RTLD 0x00000001 /* rtldlock bind_guard() flag */ 346 #define THR_FLG_NOLOCK 0x00000000 /* no-op before CI_V_FIVE */ 347 #define THR_FLG_REENTER 0x00000000 /* no-op before CI_V_FIVE */ 348 #endif 349 350 #define ROUND(x, a) (((int)(x) + ((int)(a) - 1)) & ~((int)(a) - 1)) 351 352 /* 353 * Print buffer. 354 */ 355 typedef struct { 356 char *pr_buf; /* pointer to beginning of buffer */ 357 char *pr_cur; /* pointer to next free char in buffer */ 358 size_t pr_len; /* buffer size */ 359 int pr_fd; /* output fd */ 360 } Prfbuf; 361 362 /* 363 * dlopen() handle list size. 364 */ 365 #define HDLIST_SZ 101 /* prime no. for hashing */ 366 #define HDLIST_ORP 102 /* orphan handle list */ 367 368 /* 369 * Define expansion path information. Search paths, i.e., LD_LIBRARY_PATH, 370 * RPATHS, etc. are defined using la_objsearch() information (see LA_SER flags 371 * in link.h). Definitions here extend the path information to other uses of 372 * pathname expansion, and are or'd together with any LA_SER_* flags. 373 */ 374 #define PN_FLG_EXTLOAD 0x00001000 /* path defines extra loaded objects */ 375 /* (preload, audit etc.) */ 376 #define PN_FLG_UNIQUE 0x00002000 /* ensure path is unique */ 377 #define PN_FLG_USED 0x00004000 /* indicate that path is used */ 378 #define PN_FLG_DUPLICAT 0x00008000 /* path is a duplicate */ 379 380 #define PN_FLG_MASK 0x000ff000 /* mask for p_orig incorporation */ 381 382 /* 383 * Define reserved path tokens. These are used to prevent various expansions 384 * from occurring, and record those expansions that do. Note that any expansion 385 * information is also recorded in the p_orig field of a Pnode, and thus is 386 * or'd together with any LA_SER, and PN_FLG flags. 387 */ 388 #define PN_TKN_ORIGIN 0x00100000 /* $ORIGIN expansion has occurred */ 389 #define PN_TKN_PLATFORM 0x00200000 /* $PLATFORM expansion has occurred */ 390 #define PN_TKN_OSNAME 0x00400000 /* $OSNAME expansion has occurred */ 391 #define PN_TKN_OSREL 0x00800000 /* $OSREL expansion has occurred */ 392 #define PN_TKN_ISALIST 0x01000000 /* $ISALIST expansion has occurred */ 393 #define PN_TKN_HWCAP 0x02000000 /* $HWCAP expansion has occurred */ 394 395 #define PN_TKN_MASK 0xfff00000 /* mask for p_orig incorporation */ 396 397 /* 398 * Additional token expansion information. Although these flags may be set 399 * within a token data item they are masked off with PN_TKN_MASK prior to any 400 * expansion information being recorded in a Pnode for later diagnostics. 401 */ 402 #define TKN_NONE 0x00000001 /* no token expansion has occurred */ 403 #define TKN_DOTSLASH 0x00000002 /* path contains a "./" */ 404 405 /* 406 * Define _caller flags. 407 */ 408 #define CL_NONE 0 409 #define CL_EXECDEF 1 /* supply the executable as a default */ 410 /* if the caller can't be determined */ 411 412 /* 413 * Binding information. Note, this is or'ed in with the DBG_BINFO flags to 414 * convey information regarding symbol bindings. 415 */ 416 #define BINFO_REJDIRECT 0x10000 /* reject a direct binding */ 417 #define BINFO_REJSINGLE 0x20000 /* reject a singleton binding */ 418 #define BINFO_REJECTED 0xf0000 /* a binding has been rejected */ 419 420 /* 421 * Data declarations. 422 */ 423 extern Lc_desc glcs[]; /* global external interfaces */ 424 425 extern Rt_lock rtldlock; /* rtld lock */ 426 extern int thr_flg_nolock; 427 extern int thr_flg_reenter; 428 429 extern List dynlm_list; /* dynamic list of link-maps */ 430 extern char **environ; /* environ pointer */ 431 432 extern int dyn_plt_ent_size; /* Size of dynamic plt's */ 433 extern ulong_t at_flags; /* machine specific file flags */ 434 extern const char *procname; /* file name of executing process */ 435 extern Rtld_db_priv r_debug; /* debugging information */ 436 extern char *lasterr; /* string describing last error */ 437 extern Interp *interp; /* ELF executable interpreter info */ 438 extern const char *rtldname; /* name of the dynamic linker */ 439 extern List hdl_list[]; /* dlopen() handle list */ 440 extern size_t syspagsz; /* system page size */ 441 extern char *platform; /* platform name */ 442 extern size_t platform_sz; /* platform name string size */ 443 extern Isa_desc *isa; /* isalist descriptor */ 444 extern Uts_desc *uts; /* utsname descriptor */ 445 extern uint_t rtld_flags; /* status flags for RTLD */ 446 extern uint_t rtld_flags2; /* additional status flags for RTLD */ 447 extern Fmap *fmap; /* Initial file mapping info */ 448 extern uint32_t pltcnt21d; /* cnt of 21d PLTs */ 449 extern uint32_t pltcnt24d; /* cnt of 24d PLTs */ 450 extern uint32_t pltcntu32; /* cnt of u32 PLTs */ 451 extern uint32_t pltcntu44; /* cnt of u44 PLTs */ 452 extern uint32_t pltcntfull; /* cnt of full PLTs */ 453 extern uint32_t pltcntfar; /* cnt of far PLTs */ 454 extern uchar_t search_rules[]; /* dependency search rules */ 455 456 extern Fct elf_fct; /* ELF file class dependent data */ 457 458 #if defined(__sparc) && !defined(__sparcv9) 459 extern Fct aout_fct; /* a.out (4.x) file class dependent */ 460 /* data */ 461 #endif 462 463 extern const char *locale; /* locale environment setting */ 464 465 extern Config *config; /* configuration structure */ 466 extern const char *locale; /* locale environment setting */ 467 468 extern const char *rpl_audit; /* replaceable LD_AUDIT string */ 469 extern const char *rpl_debug; /* replaceable LD_DEBUG string */ 470 extern const char *rpl_ldflags; /* replaceable LD_FLAGS string */ 471 extern const char *rpl_libpath; /* replaceable LD_LIBRARY string */ 472 extern Pnode *rpl_libdirs; /* and its associated Pnode list */ 473 extern const char *rpl_preload; /* replaceable LD_PRELOAD string */ 474 475 extern const char *prm_audit; /* permanent LD_AUDIT string */ 476 extern const char *prm_debug; /* permanent LD_DEBUG string */ 477 extern const char *prm_ldflags; /* permanent LD_FLAGS string */ 478 extern const char *prm_libpath; /* permanent LD_LIBRARY string */ 479 extern Pnode *prm_libdirs; /* and its associated Pnode list */ 480 extern const char *prm_preload; /* permanent LD_PRELOAD string */ 481 482 extern uint_t env_info; /* information regarding environment */ 483 /* variables */ 484 extern int killsig; /* signal sent on fatal exit */ 485 486 extern uint_t audit_argcnt; /* no. of stack args to copy */ 487 extern Audit_desc *auditors; /* global auditors */ 488 489 extern char **_environ; 490 491 extern const char *dbg_file; /* debugging directed to a file */ 492 493 extern Reglist *reglist; /* list of register symbols */ 494 495 extern const Msg err_reject[]; /* rejection error message tables */ 496 extern const Msg ldd_reject[]; 497 498 extern const char *profile_name; /* object being profiled */ 499 extern const char *profile_out; /* profile output file */ 500 extern const char *profile_lib; /* audit library to perform profile */ 501 502 extern Dl_argsinfo argsinfo; /* process argument, environment and */ 503 /* auxv information */ 504 505 extern const char *err_strs[]; /* diagnostic error string headers */ 506 extern const char *nosym_str; /* MSG_GEN_NOSYM message cache */ 507 508 extern ulong_t hwcap; /* hardware capabilities */ 509 extern ulong_t sfcap; /* software capabilities */ 510 511 extern avl_tree_t *nfavl; /* not-found AVL path name tree */ 512 513 /* 514 * Function declarations. 515 */ 516 extern void addfree(void *, size_t); 517 extern int append_alias(Rt_map *, const char *, int *); 518 extern int analyze_lmc(Lm_list *, Aliste, Rt_map *, int *); 519 extern Am_ret anon_map(Lm_list *, caddr_t *, size_t, int, int); 520 extern Fct *are_u_this(Rej_desc *, int, struct stat *, 521 const char *); 522 extern void atexit_fini(void); 523 extern int bind_one(Rt_map *, Rt_map *, uint_t); 524 extern int bufprint(Prfbuf *, const char *, ...); 525 extern void call_array(Addr *, uint_t, Rt_map *, Word); 526 extern void call_fini(Lm_list *, Rt_map **); 527 extern void call_init(Rt_map **, int); 528 extern int callable(Rt_map *, Rt_map *, Grp_hdl *, uint_t); 529 extern Rt_map *_caller(caddr_t, int); 530 extern caddr_t caller(void); 531 extern void *calloc(size_t, size_t); 532 extern void cap_assign(Cap *, Rt_map *); 533 extern const char *_conv_reloc_type(uint_t rel); 534 extern uintptr_t dbg_setup(const char *, Dbg_desc *); 535 extern const char *demangle(const char *); 536 extern int dlclose_intn(Grp_hdl *, Rt_map *); 537 extern int dlclose_core(Grp_hdl *, Rt_map *, Lm_list *); 538 extern Sym *dlsym_handle(Grp_hdl *, Slookup *, Rt_map **, 539 uint_t *, int *); 540 extern void *dlsym_intn(void *, const char *, Rt_map *, Rt_map **); 541 extern Grp_hdl *dlmopen_intn(Lm_list *, const char *, int, Rt_map *, 542 uint_t, uint_t); 543 extern size_t doprf(const char *, va_list, Prfbuf *); 544 extern int dowrite(Prfbuf *); 545 extern void dz_init(int); 546 extern caddr_t dz_map(Lm_list *, caddr_t, size_t, int, int); 547 extern int elf_config(Rt_map *, int); 548 extern int elf_mach_flags_check(Rej_desc *, Ehdr *); 549 extern Rtc_obj *elf_config_ent(const char *, Word, int, const char **); 550 extern Pnode *elf_config_flt(Lm_list *, const char *, const char *); 551 extern ulong_t elf_hash(const char *); 552 extern void elf_reloc_bad(Rt_map *, void *, uchar_t, ulong_t, 553 ulong_t); 554 extern ulong_t elf_reloc_relative(ulong_t, ulong_t, ulong_t, 555 ulong_t, ulong_t, ulong_t); 556 extern ulong_t elf_reloc_relacount(ulong_t, ulong_t, 557 ulong_t, ulong_t); 558 extern long elf_static_tls(Rt_map *, Sym *, void *, uchar_t, char *, 559 ulong_t, long); 560 extern int enter(int); 561 extern uint_t expand(char **, size_t *, char **, uint_t, uint_t, 562 Rt_map *); 563 extern Pnode *expand_paths(Rt_map *, const char *, uint_t, uint_t); 564 extern void free_hdl(Grp_hdl *, Rt_map *, uint_t); 565 extern void file_notfound(Lm_list *, const char *, Rt_map *, 566 uint_t, Rej_desc *); 567 extern int find_path(Lm_list *, const char *, Rt_map *, uint_t, 568 Fdesc *, Rej_desc *, int *); 569 extern int fpavl_insert(Lm_list *, Rt_map *, const char *, 570 avl_index_t); 571 extern Rt_map *fpavl_recorded(Lm_list *, const char *, avl_index_t *); 572 extern void fpavl_remove(Rt_map *); 573 extern size_t fullpath(Rt_map *, const char *); 574 extern void fmap_setup(); 575 extern void get_lcinterface(Rt_map *, Lc_interface *); 576 extern Lmid_t get_linkmap_id(Lm_list *); 577 extern Pnode *get_next_dir(Pnode **, Rt_map *, uint_t); 578 extern int hdl_add(Grp_hdl *, Rt_map *, uint_t); 579 extern Grp_hdl *hdl_create(Lm_list *, Rt_map *, Rt_map *, uint_t, 580 uint_t, uint_t); 581 extern int hdl_initialize(Grp_hdl *, Rt_map *, int, int); 582 extern int hwcap_check(Rej_desc *, Ehdr *); 583 extern Pnode *hwcap_filtees(Pnode **, Aliste, Lm_cntl *, Dyninfo *, 584 Rt_map *, const char *, int, uint_t, int *); 585 extern void is_dep_ready(Rt_map *, Rt_map *, int); 586 extern void is_dep_init(Rt_map *, Rt_map *); 587 extern int is_move_data(caddr_t); 588 extern int is_sym_interposer(Rt_map *, Sym *); 589 extern void ldso_plt_init(Rt_map *); 590 extern Listnode *list_append(List *, const void *); 591 extern Listnode *list_insert(List *, const void *, Listnode *); 592 extern Listnode *list_prepend(List *, const void *); 593 extern void list_delete(List *, void *); 594 extern void leave(Lm_list *, int); 595 extern void lm_append(Lm_list *, Aliste, Rt_map *); 596 extern void lm_delete(Lm_list *, Rt_map *); 597 extern void lm_move(Lm_list *, Aliste, Aliste, Lm_cntl *, 598 Lm_cntl *); 599 extern void load_completion(Rt_map *); 600 extern Rt_map *load_hwcap(Lm_list *, Aliste, const char *, Rt_map *, 601 uint_t, uint_t, Grp_hdl **, Rej_desc *, int *); 602 extern Rt_map *load_path(Lm_list *, Aliste, const char **, Rt_map *, 603 int, uint_t, Grp_hdl **, Fdesc *, Rej_desc *, 604 int *); 605 extern Rt_map *load_one(Lm_list *, Aliste, Pnode *, Rt_map *, int, 606 uint_t, Grp_hdl **, int *); 607 extern int load_trace(Lm_list *, const char **, Rt_map *); 608 extern void nfavl_insert(const char *, avl_index_t); 609 extern int nfavl_recorded(const char *, avl_index_t *); 610 extern caddr_t nu_map(Lm_list *, caddr_t, size_t, int, int); 611 extern void *malloc(size_t); 612 extern int move_data(Rt_map *); 613 extern int pr_open(Lm_list *); 614 extern void rd_event(Lm_list *, rd_event_e, r_state_e); 615 extern int readenv_user(const char **, Word *, Word *, int); 616 extern int readenv_config(Rtc_env *, Addr, int); 617 extern void rejection_inherit(Rej_desc *, Rej_desc *); 618 extern int relocate_lmc(Lm_list *, Aliste, Rt_map *, Rt_map *, 619 int *); 620 extern int relocate_finish(Rt_map *, APlist *, int, int); 621 extern void remove_cntl(Lm_list *, Aliste); 622 extern int remove_hdl(Grp_hdl *, Rt_map *, int *); 623 extern void remove_lmc(Lm_list *, Rt_map *, Lm_cntl *, Aliste, 624 const char *); 625 extern void remove_incomplete(Lm_list *, Aliste); 626 extern void remove_lists(Rt_map *, int); 627 extern void remove_lml(Lm_list *); 628 extern void remove_pnode(Pnode *); 629 extern void remove_rej(Rej_desc *); 630 extern void remove_so(Lm_list *, Rt_map *); 631 extern int rt_cond_broadcast(Rt_cond *); 632 extern Rt_cond *rt_cond_create(void); 633 extern int rt_cond_wait(Rt_cond *, Rt_lock *); 634 extern int rt_bind_guard(int); 635 extern int rt_bind_clear(int); 636 extern int rt_get_extern(Lm_list *, Rt_map *); 637 extern int rt_mutex_lock(Rt_lock *); 638 extern int rt_mutex_unlock(Rt_lock *); 639 extern void rt_thr_init(Lm_list *); 640 extern thread_t rt_thr_self(void); 641 extern void rtld_db_dlactivity(Lm_list *); 642 extern void rtld_db_preinit(Lm_list *); 643 extern void rtld_db_postinit(Lm_list *); 644 extern void rtldexit(Lm_list *, int); 645 extern int rtld_getopt(char **, char ***, auxv_t **, Word *, 646 Word *, int); 647 extern void security(uid_t, uid_t, gid_t, gid_t, int); 648 extern void set_environ(Lm_list *); 649 extern Rt_map *setup(char **, auxv_t *, Word, char *, int, char *, 650 Dyn *, ulong_t, ulong_t, int fd, Phdr *, char *, 651 char **, int, uid_t, uid_t, gid_t, gid_t, void *, 652 int, uint_t); 653 extern int tls_assign(Lm_list *, Rt_map *, Phdr *); 654 extern void tls_modaddrem(Rt_map *, uint_t); 655 extern int tls_statmod(Lm_list *, Rt_map *); 656 extern Rt_map **tsort(Rt_map *, int, int); 657 extern void unused(Lm_list *); 658 extern int update_mode(Rt_map *, int, int); 659 extern void zero(caddr_t, size_t); 660 661 #if defined(__sparc) 662 /* 663 * SPARC Register symbol support. 664 */ 665 extern int elf_regsyms(Rt_map *); 666 extern void set_sparc_g1(ulong_t); 667 extern void set_sparc_g2(ulong_t); 668 extern void set_sparc_g3(ulong_t); 669 extern void set_sparc_g4(ulong_t); 670 extern void set_sparc_g5(ulong_t); 671 extern void set_sparc_g6(ulong_t); 672 extern void set_sparc_g7(ulong_t); 673 #endif 674 675 extern long _sysconfig(int); 676 677 #ifdef __cplusplus 678 } 679 #endif 680 681 #endif /* __RTLD_H */ 682