OpenSolaris_b135/cmd/sgs/rtld/common/_rtld.h
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1988 AT&T
* All Rights Reserved
*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef __RTLD_H
#define __RTLD_H
/*
* Common header for run-time linker.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/avl.h>
#include <sys/mman.h>
#include <stdarg.h>
#include <synch.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <link.h>
#include <rtld.h>
#include <sgs.h>
#include <machdep.h>
#include <rtc.h>
#include <debug.h>
#include <msg.h>
#include <libc_int.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Dependency search rule order.
*/
#define RPLENV 1 /* replaceable LD_LIBRARY_PATH */
#define PRMENV 2 /* permanent LD_LIBRARY_PATH */
#define RUNPATH 3 /* callers runpath */
#define DEFAULT 4 /* default library path */
typedef struct fdesc Fdesc;
typedef struct fct Fct;
typedef struct pdesc Pdesc;
/*
* Data structure for file class specific functions and data.
*/
struct fct {
/* Verify that the object is of this class. */
Fct *(*fct_verify_file)(caddr_t, size_t, Fdesc *, const char *,
Rej_desc *);
/* Generate a link-map to describe the loaded object. */
Rt_map *(*fct_new_lmp)(Lm_list *, Aliste, Fdesc *, Addr, size_t,
void *, int *);
/* Retrieve the entry point of the object. */
Addr (*fct_entry_pt)(void);
/* Determine the objects dependencies (needed entries). */
int (*fct_needed)(Lm_list *, Aliste, Rt_map *, int *);
/* Look up a symbol for the object. */
int (*fct_lookup_sym)(Slookup *, Sresult *, uint_t *, int *);
/* Relocate the object. */
int (*fct_reloc)(Rt_map *, uint_t, int *, APlist **);
/* List of default directories to search for dependencies. */
Alist **(*fct_get_def_dirs)(void);
/* List of secure directories to search for dependencies. */
Alist **(*fct_get_sec_dirs)(void);
/* Transpose the name of the object. */
int (*fct_fix_name)(const char *, Rt_map *, Alist **, Aliste,
uint_t);
/* Get a shared object name */
char *(*fct_get_so)(const char *, const char *, size_t, size_t);
/* Retrieve a symbolic address from the object. */
void (*fct_dladdr)(ulong_t, Rt_map *, Dl_info *, void **, int);
/* Process a dlsym(3c) request within the object. */
int (*fct_dlsym)(Grp_hdl *, Slookup *, Sresult *, uint_t *, int *);
};
/*
* Macros for getting to the file class table.
*/
#define LM_ENTRY_PT(X) ((X)->rt_fct->fct_entry_pt)
#define LM_NEEDED(X) ((X)->rt_fct->fct_needed)
#define LM_LOOKUP_SYM(X) ((X)->rt_fct->fct_lookup_sym)
#define LM_RELOC(X) ((X)->rt_fct->fct_reloc)
#define LM_DEFAULT_DIRS(X) ((X)->rt_fct->fct_get_def_dirs)
#define LM_SECURE_DIRS(X) ((X)->rt_fct->fct_get_sec_dirs)
#define LM_FIX_NAME(X) ((X)->rt_fct->fct_fix_name)
#define LM_GET_SO(X) ((X)->rt_fct->fct_get_so)
#define LM_DLADDR(X) ((X)->rt_fct->fct_dladdr)
#define LM_DLSYM(X) ((X)->rt_fct->fct_dlsym)
/*
* Initial memory map allocation. Typical ELF objects contain a text and data
* segment, which can be augmented with a bss mapping. Add a bunch more for
* luck.
*/
#define MMAPFD_NUM 10
/*
* Define Alist initialization counts.
*/
#define AL_CNT_ALIAS 2 /* ALIAS() */
#define AL_CNT_DEPENDS 20 /* DEPENDS() */
#define AL_CNT_CALLERS 20 /* CALLERS() */
#define AL_CNT_GROUPS 20 /* GROUPS() */
#define AL_CNT_COPYREL 10 /* COPY() */
#define AL_CNT_LAZYFIND 10 /* elf_lazy_find_sym() */
#define AL_CNT_GRPCLCT 10 /* gdp_collect() */
#define AL_CNT_DEPCLCT 10 /* load_finish() */
#define AL_CNT_RTLDINFO 1 /* RTLDINFO() */
#define AL_CNT_FPNODE 4 /* FPNODE() */
#define AL_CNT_LMLISTS 20 /* lm_lists */
#define AL_CNT_LMNOW 8 /* lm_now */
#define AL_CNT_RELBIND 20 /* relocation binding */
#define AL_CNT_ACTAUDIT 2 /* lm_actaudit */
#define AL_CNT_MOVES 10 /* move_data */
#define AL_CNT_MPOBJS 4 /* elf_obj_file() */
#define AL_CNT_TEXTREL 2 /* text relocation segment */
#define AL_CNT_NEEDED 1 /* dependency path */
#define AL_CNT_SEARCH 4 /* search path */
#define AL_CNT_FILTEES 2 /* filtee path */
#define AL_CNT_HANDLES 1 /* hdl_list[] */
#define AL_CNT_FREELIST 80 /* free_alp */
#define AL_CNT_CAP 10 /* capabilities candidate */
#define AL_CNT_SPATH 4 /* search path */
#define AL_CNT_DYNLIST 2 /* dynlm_list */
#define AL_CNT_PENDING 2 /* pending tsort list (INITFIRST) */
#define AL_CNT_PLTPAD 10 /* plt padding */
#define AL_CNT_AUDITORS 2 /* auditing list */
/*
* Size of buffer for building error messages.
*/
#define ERRSIZE 2048 /* MAXPATHLEN * 2 */
/*
* Configuration file information.
*/
typedef struct config {
const char *c_name;
Addr c_bgn;
Addr c_end;
Word *c_hashtbl;
Word *c_hashchain;
const char *c_strtbl;
Rtc_obj *c_objtbl;
Rtc_fltr *c_fltr;
Rtc_flte *c_flte;
} Config;
/*
* Register symbol list.
*/
typedef struct reglist {
Rt_map *rl_lmp; /* defining object */
Sym *rl_sym; /* regsym */
struct reglist *rl_next; /* next entry */
} Reglist;
/*
* Data structure to hold interpreter information.
*/
typedef struct interp {
char *i_name; /* interpreter name */
caddr_t i_faddr; /* address interpreter is mapped at */
} Interp;
/*
* Data structure used to keep track of copy relocations. These relocations
* are collected during initial relocation processing and maintained on the
* COPY(lmp) list of the defining object. Each copy list is also added to the
* COPY(lmp) of the head object (normally the application dynamic executable)
* from which they will be processed after all relocations are done.
*
* The use of RTLD_GROUP will also reference individual objects COPY(lmp) lists
* in case a bound symbol must be assigned to it actual copy relocation.
*/
typedef struct {
const char *r_name; /* symbol name */
Sym *r_rsym; /* reference symbol table entry */
Rt_map *r_rlmp; /* reference link map */
Rt_map *r_dlmp; /* definition link map */
Sym *r_dsym; /* definition symbol table entry */
void *r_radd; /* copy to address */
const void *r_dadd; /* copy from address */
ulong_t r_size; /* copy size bytes */
} Rel_copy;
/*
* Define a file descriptor, which maintains information regarding a pathname
* that has been opened and minimally inspected.
*/
struct fdesc {
Rt_map *fd_lmp; /* existing link-map pointer */
Fct *fd_ftp; /* file functions pointer */
const char *fd_oname; /* original file name */
const char *fd_odir; /* original directory name */
const char *fd_nname; /* new file (expanded) name */
const char *fd_pname; /* new path (resolved) name */
dev_t fd_dev; /* file device number */
rtld_ino_t fd_ino; /* file inode number */
uint_t fd_flags;
avl_index_t fd_avlwhere; /* avl tree insertion index */
Syscapset fd_scapset; /* capabilities */
mmapobj_result_t *fd_mapp; /* mapping pointer */
uint_t fd_mapn; /* mapping number */
};
#define FLG_FD_ALTER 0x0001 /* file is an alternate */
#define FLG_FD_SLASH 0x0002 /* file contains a "/" */
#define FLG_FD_RESOLVED 0x0004 /* fd_nname has been resolved */
#define FLG_FD_ALTCHECK 0x0008 /* alternative system capabilities */
/* checked */
#define FLG_FD_ALTCAP 0x0010 /* alternative system capabilities */
/* should be used */
/*
* File descriptor availability flag.
*/
#define FD_UNAVAIL -1
/*
* Disabled filter flag. Filter objects are referenced using their .dynamic
* index (DT_FILTER or DT_AUXILIARY). This index is saved and used to lookup
* the required filter. Note that 0 is a valid .dynamic index. The caller's
* OBJFLTRNDX() element is initialized using the following flag, and should
* the filter's initialization fail, is reset to this value to indicate the
* filter is disabled. UINT_MAX provides a convenient invalid .dynamic index.
*/
#define FLTR_DISABLED UINT_MAX
/*
* Status flags for rtld_flags
*/
#define RT_FL_THREADS 0x00000001 /* threads are enabled */
#define RT_FL_WARNFLTR 0x00000002 /* warn of missing filtees (ldd) */
#define RT_FL_DBNOTIF 0x00000004 /* binding activity going on */
#define RT_FL_NOBIND 0x00000010 /* don't carry out plt binding */
#define RT_FL_NOVERSION 0x00000020 /* disable version checking */
#define RT_FL_SECURE 0x00000040 /* setuid/segid flag */
#define RT_FL_APPLIC 0x00000080 /* are we executing user code */
#define RT_FL_CONFGEN 0x00000200 /* don't relocate initiating object */
/* set by crle(1). */
#define RT_FL_CONFAPP 0x00000400 /* application specific configuration */
/* cache required */
#define RT_FL_DEBUGGER 0x00000800 /* a debugger is monitoring us */
#define RT_FL_OPERATION 0x00001000 /* start recording operations */
#define RT_FL_NEWLOCALE 0x00002000 /* message locale has changed */
#define RT_FL_NOBAPLT 0x00004000 /* sparc: don't use ba plt's */
#define RT_FL_NOAUXFLTR 0x00008000 /* disable auxiliary filters */
#define RT_FL_NOAUDIT 0x00020000 /* disable auditing */
#define RT_FL_ATEXIT 0x00040000 /* we're shutting down */
#define RT_FL_SILENCERR 0x00080000 /* silence error messages */
#define RT_FL_INITFIRST 0x00200000 /* processing a DT_INITFIRST object */
#define RT_FL_DEMANGLE 0x01000000 /* demangle C++ symbol names */
#define RT_FL_NOCFG 0x02000000 /* disable config file use */
#define RT_FL_NODIRCFG 0x04000000 /* disable directory config use */
#define RT_FL_NOOBJALT 0x08000000 /* disable object alternative use */
#define RT_FL_NOENVCFG 0x10000000 /* disable config envars use */
#define RT_FL_DIRCFG 0x20000000 /* directory config info available */
#define RT_FL_OBJALT 0x40000000 /* object alternatives are available */
#define RT_FL_MEMRESV 0x80000000 /* memory reservation established */
/*
* Status flags for rtld_flags2
*/
#define RT_FL2_HASAUDIT 0x00000001 /* auditing lm_list is present */
#define RT_FL2_RTLDSEEN 0x00000002 /* rtldinfo has been set */
#define RT_FL2_UNIFPROC 0x00000004 /* libc/libthread unified environment */
#define RT_FL2_NOFLTCFG 0x00000010 /* disable config filter use */
#define RT_FL2_FLTCFG 0x00000020 /* filter config info available */
#define RT_FL2_HWCAP 0x00000040 /* hardware capabilities available */
#define RT_FL2_FTL2WARN 0x00000080 /* convert fatal to warning messages */
#define RT_FL2_BINDNOW 0x00000100 /* LD_BIND_NOW in effect */
#define RT_FL2_BINDLAZY 0x00000200 /* disable RTLD_NOW (and LD_BIND_NOW) */
#define RT_FL2_PLMSETUP 0x00000400 /* primary link-map set up complete */
#define RT_FL2_BRANDED 0x00000800 /* process is branded */
#define RT_FL2_NOPLM 0x00001000 /* process has no primary link map */
#define RT_FL2_SETUID 0x00002000 /* ld.so.1 is setuid root */
#define RT_FL2_ADDR32 0x00004000 /* 32-bit address space requirement */
/*
* Information flags for env_info.
*/
#define ENV_INF_PATHCFG 0x00000001 /* replaceable LD_LIBRARY_PATH */
/* originates from configuration */
/* file */
#define ENV_INF_FLAGCFG 0x00000002 /* replaceable LD_FLAGS originates */
/* from configuration file */
/*
* RTLDINFO descriptor.
*/
typedef struct {
Rt_map *rti_lmp; /* RTLDINFO provider */
Lc_interface *rti_info; /* RTLDINFO data */
} Rti_desc;
/*
* Binding flags for the rt_bind_guard()/rt_bind_clear() routines.
* These are defined in usr/src/lib/libc/inc/libc_int.h in the
* latest version of the libc/rtld runtime interface (CI_V_FIVE).
*/
#if !defined(CI_V_FIVE)
#define THR_FLG_RTLD 0x00000001 /* rtldlock bind guard flag */
#define THR_FLG_NOLOCK 0x00000000 /* no-op before CI_V_FIVE */
#define THR_FLG_REENTER 0x00000000 /* no-op before CI_V_FIVE */
#endif
#define ROUND(x, a) (((int)(x) + ((int)(a) - 1)) & ~((int)(a) - 1))
/*
* Print buffer.
*/
typedef struct {
char *pr_buf; /* pointer to beginning of buffer */
char *pr_cur; /* pointer to next free char in buffer */
size_t pr_len; /* buffer size */
int pr_fd; /* output fd */
} Prfbuf;
/*
* Path name descriptor. Used to construct various path names such as search
* paths, dependency paths, filter paths etc. The pd_info element can be used
* to hold various pointers, like Grp_hdl, Rtc_obj, etc.
*/
struct pdesc {
const char *pd_pname; /* path name - may be expanded */
const char *pd_oname; /* original name - unexpanded */
void *pd_info; /* possible auxiliary information */
size_t pd_plen; /* path name length */
uint_t pd_flags; /* descriptor specific flags */
};
/*
* Path name descriptors are passed to expand_path() and expand(). These
* routines break down possible multiple path strings (separated with ":"),
* and perform any reserved token expansion. These routines are passed
* information that indicates the use of the path, for example, search paths,
* i.e., LD_LIBRARY_PATH, RPATHS, etc. are defined using la_objsearch()
* information (see LA_SER flags in link.h). This information is recorded in
* the pd_flags field for later use.
*
* Define expansion path tokens. These are used to prevent various expansions
* from occurring, and record those expansions that do. Any expansion
* information is also recorded in the pd_flags field, and thus is or'd
* together with any LA_SER flags.
*/
#define PD_TKN_ORIGIN 0x00001000 /* $ORIGIN expansion has occurred */
#define PD_TKN_PLATFORM 0x00002000 /* $PLATFORM expansion has occurred */
#define PD_TKN_OSNAME 0x00004000 /* $OSNAME expansion has occurred */
#define PD_TKN_OSREL 0x00008000 /* $OSREL expansion has occurred */
#define PD_TKN_ISALIST 0x00010000 /* $ISALIST expansion has occurred */
#define PD_TKN_CAP 0x00020000 /* $CAPABILITY/$HWCAP expansion has */
/* occurred */
#define PD_TKN_MACHINE 0x00040000 /* $MACHINE expansion has occurred */
#define PD_TKN_RESOLVED 0x00080000 /* resolvepath() expansion has */
/* occurred */
#define PD_MSK_EXPAND 0x000ff000 /* mask for all expansions */
/*
* Define additional path information. These definitions extend the path
* information, and may be passed into expand_path(), or set internally, or
* inherited from expand(). These definitions are or'd together with any
* LA_SER_ flags and PD_TKN_ flags.
*/
#define PD_FLG_PNSLASH 0x00100000 /* pd_pname contains a slash */
#define PD_FLG_DUPLICAT 0x00200000 /* path is a duplicate */
#define PD_FLG_EXTLOAD 0x00400000 /* path defines extra loaded objects */
/* (preload, audit etc.) */
#define PD_FLG_UNIQUE 0x00800000 /* ensure path is unique */
#define PD_FLG_USED 0x01000000 /* indicate that path is used */
#define PD_FLG_FULLPATH 0x02000000 /* ensure path is a full path */
#define PD_MSK_INHERIT 0x0ffff000 /* mask for pd_flags incorporation */
/*
* Additional token expansion information. Although these flags may be set
* within a token data item return from expand(), they are masked off with
* PD_MSK_INHERIT prior to any expansion information being recorded in a path
* name descriptor for later diagnostics.
*/
#define TKN_NONE 0x00000001 /* no token expansion has occurred */
#define TKN_DOTSLASH 0x00000002 /* path contains a "./" */
/*
* dlopen() handle list size.
*/
#define HDLIST_SZ 101 /* prime no. for hashing */
#define HDLIST_ORP 102 /* orphan handle list */
/*
* Define a path name search descriptor. This "cookie" maintains state as
* search paths are processed with get_next_dir(). Note, the path list is an
* indirect pointer, as search paths can be reevaluated for secure applications
* to provide better error diagnostics.
*/
typedef struct {
uchar_t *sp_rule; /* present search rule */
Alist **sp_dalpp; /* present path list within rule */
Aliste sp_idx; /* present index within path list */
} Spath_desc;
/*
* Define a path name definition descriptor. Used to maintain initial ELF and
* AOUT path name definitions.
*/
typedef struct {
const char *sd_name; /* path name */
size_t sd_len; /* path name size */
} Spath_defn;
/*
* Define _caller flags.
*/
#define CL_NONE 0
#define CL_EXECDEF 1 /* supply the executable as a default */
/* if the caller can't be determined */
/*
* Binding information flags. These flags are passed up from low level binding
* routines to indicate "additional" information, such as why a binding has been
* rejected. These flags use the same data element as is used to record any
* DBG_BINFO flags. The DBG_BINFO flags are used to define the final bindings
* information and are used to provide better binding diagnostics.
*/
#define BINFO_REJDIRECT 0x010000 /* reject a direct binding */
#define BINFO_REJSINGLE 0x100000 /* reject a singleton binding */
#define BINFO_REJGROUP 0x200000 /* reject a group binding */
#define BINFO_MSK_TRYAGAIN 0xf00000 /* a mask of bindings that */
/* should be retried */
#define BINFO_MSK_REJECTED 0xff0000 /* a mask of bindings that */
/* have been rejected */
/*
* The 32-bit version of rtld uses special stat() wrapper functions
* that preserve the non-largefile semantics of stat()/fstat() while
* allowing for large inode values. The 64-bit rtld uses stat() directly.
*/
#ifdef _LP64
#define rtld_fstat fstat
#define rtld_stat stat
typedef struct stat rtld_stat_t;
#else
typedef struct {
dev_t st_dev;
rtld_ino_t st_ino;
mode_t st_mode;
uid_t st_uid;
off_t st_size;
timestruc_t st_mtim;
#ifdef sparc
blksize_t st_blksize;
#endif
} rtld_stat_t;
#endif
/*
* Data declarations.
*/
extern Lc_desc glcs[]; /* global external interfaces */
extern Rt_lock rtldlock; /* rtld lock */
extern int thr_flg_nolock;
extern int thr_flg_reenter;
extern APlist *dynlm_list; /* dynamic list of link-maps */
extern char **environ; /* environ pointer */
extern int dyn_plt_ent_size; /* Size of dynamic plt's */
extern ulong_t at_flags; /* machine specific file flags */
extern const char *procname; /* file name of executing process */
extern Rtld_db_priv r_debug; /* debugging information */
extern char *lasterr; /* string describing last error */
extern Interp *interp; /* ELF executable interpreter info */
extern const char *rtldname; /* name of the dynamic linker */
extern APlist *hdl_alp[]; /* dlopen() handle list */
extern size_t syspagsz; /* system page size */
extern Isa_desc *isa; /* isalist descriptor */
extern Uts_desc *uts; /* utsname descriptor */
extern uint_t rtld_flags; /* status flags for RTLD */
extern uint_t rtld_flags2; /* additional status flags for RTLD */
extern uint32_t pltcnt21d; /* cnt of 21d PLTs */
extern uint32_t pltcnt24d; /* cnt of 24d PLTs */
extern uint32_t pltcntu32; /* cnt of u32 PLTs */
extern uint32_t pltcntu44; /* cnt of u44 PLTs */
extern uint32_t pltcntfull; /* cnt of full PLTs */
extern uint32_t pltcntfar; /* cnt of far PLTs */
extern uchar_t search_rules[]; /* dependency search rules */
extern Fct elf_fct; /* ELF file class dependent data */
#if defined(__sparc) && !defined(__sparcv9)
extern Fct aout_fct; /* a.out (4.x) file class dependent */
/* data */
#endif
extern Config *config; /* configuration structure */
extern const char *locale; /* locale environment setting */
extern const char *rpl_audit; /* replaceable LD_AUDIT string */
extern const char *rpl_debug; /* replaceable LD_DEBUG string */
extern const char *rpl_ldflags; /* replaceable LD_FLAGS string */
extern const char *rpl_libpath; /* replaceable LD_LIBRARY string */
extern Alist *rpl_libdirs; /* and its associated Pdesc list */
extern const char *rpl_preload; /* replaceable LD_PRELOAD string */
extern const char *prm_audit; /* permanent LD_AUDIT string */
extern const char *prm_debug; /* permanent LD_DEBUG string */
extern const char *prm_ldflags; /* permanent LD_FLAGS string */
extern const char *prm_libpath; /* permanent LD_LIBRARY string */
extern Alist *prm_libdirs; /* and its associated Pdesc list */
extern const char *prm_preload; /* permanent LD_PRELOAD string */
extern Alist *elf_def_dirs; /* ELF default directory seach paths */
extern Alist *elf_sec_dirs; /* ELF secure directory seach paths */
extern Alist *aout_def_dirs; /* AOUT default directory seach paths */
extern Alist *aout_sec_dirs; /* AOUT secure directory seach paths */
extern uint_t env_info; /* information regarding environment */
/* variables */
extern int killsig; /* signal sent on fatal exit */
extern APlist *free_alp; /* defragmentation list */
extern uint_t audit_argcnt; /* no. of stack args to copy */
extern Audit_desc *auditors; /* global auditors */
extern char **_environ; /* environ reference for libc */
extern const char *dbg_file; /* debugging directed to a file */
extern Reglist *reglist; /* list of register symbols */
extern const Msg err_reject[]; /* rejection error message tables */
extern const Msg ldd_reject[];
extern const Msg ldd_warn[];
extern const char *profile_name; /* object being profiled */
extern const char *profile_out; /* profile output file */
extern const char *profile_lib; /* audit library to perform profile */
extern Dl_argsinfo argsinfo; /* process argument, environment and */
/* auxv information */
extern const char *err_strs[ERR_NUM];
/* diagnostic error string headers */
extern const char *nosym_str; /* MSG_GEN_NOSYM message cache */
extern Syscapset *org_scapset; /* original system capabilities */
extern Syscapset *alt_scapset; /* alternative system capabilities */
extern const char *rpl_hwcap; /* replaceable hwcap str */
extern const char *rpl_sfcap; /* replaceable sfcap str */
extern const char *rpl_machcap; /* replaceable machcap str */
extern const char *rpl_platcap; /* replaceable platcap str */
extern const char *rpl_cap_files; /* associated files */
extern const char *prm_hwcap; /* permanent hwcap str */
extern const char *prm_sfcap; /* permanent sfcap str */
extern const char *prm_machcap; /* permanent machcap str */
extern const char *prm_platcap; /* permanent platcap str */
extern const char *prm_cap_files; /* associated files */
extern avl_tree_t *capavl; /* capabilities files */
extern avl_tree_t *nfavl; /* not-found path names */
extern avl_tree_t *spavl; /* secure path names */
extern u_longlong_t cnt_map; /* Incr. for each object mapped */
extern u_longlong_t cnt_unmap; /* Incr. for each object unmapped */
/*
* Function declarations.
*/
extern void addfree(void *, size_t);
extern int append_alias(Rt_map *, const char *, int *);
extern Rt_map *analyze_lmc(Lm_list *, Aliste, Rt_map *, int *);
extern void atexit_fini(void);
extern int bind_one(Rt_map *, Rt_map *, uint_t);
extern int bufprint(Prfbuf *, const char *, ...);
extern void call_array(Addr *, uint_t, Rt_map *, Word);
extern void call_fini(Lm_list *, Rt_map **);
extern void call_init(Rt_map **, int);
extern int callable(Rt_map *, Rt_map *, Grp_hdl *, uint_t);
extern Rt_map *_caller(caddr_t, int);
extern caddr_t caller(void);
extern void *calloc(size_t, size_t);
extern int cap_alternative(void);
extern int cap_check_fdesc(Fdesc *, Cap *, char *, Rej_desc *);
extern int cap_check_lmp(Rt_map *, Rej_desc *);
extern int cap_filtees(Alist **, Aliste, const char *, Aliste,
Rt_map *, const char *, int, uint_t, int *);
extern int cap_match(Sresult *, uint_t, Sym *, char *);
extern const char *_conv_reloc_type(uint_t rel);
extern Aliste create_cntl(Lm_list *, int);
extern void defrag(void);
extern int dbg_setup(const char *, Dbg_desc *);
extern const char *demangle(const char *);
extern int dlclose_intn(Grp_hdl *, Rt_map *);
extern int dlclose_core(Grp_hdl *, Rt_map *, Lm_list *);
extern int dlsym_handle(Grp_hdl *, Slookup *, Sresult *, uint_t *,
int *);
extern void *dlsym_intn(void *, const char *, Rt_map *, Rt_map **);
extern Grp_hdl *dlmopen_intn(Lm_list *, const char *, int, Rt_map *,
uint_t, uint_t);
extern size_t doprf(const char *, va_list, Prfbuf *);
extern int dowrite(Prfbuf *);
extern void *dz_map(Lm_list *, caddr_t, size_t, int, int);
extern int enter(int);
extern uint_t expand(char **, size_t *, char **, uint_t, uint_t,
Rt_map *);
extern int expand_paths(Rt_map *, const char *, Alist **, Aliste,
uint_t, uint_t);
extern void free_hdl(Grp_hdl *);
extern void file_notfound(Lm_list *, const char *, Rt_map *,
uint_t, Rej_desc *);
extern int find_path(Lm_list *, Rt_map *, uint_t, Fdesc *,
Rej_desc *, int *);
extern int fpavl_insert(Lm_list *, Rt_map *, const char *,
avl_index_t);
extern Rt_map *fpavl_recorded(Lm_list *, const char *, uint_t,
avl_index_t *);
extern void fpavl_remove(Rt_map *);
extern size_t fullpath(Rt_map *, Fdesc *);
extern Lmid_t get_linkmap_id(Lm_list *);
extern Pdesc *get_next_dir(Spath_desc *, Rt_map *, uint_t);
extern Grp_desc *hdl_add(Grp_hdl *, Rt_map *, uint_t, int *);
extern Grp_hdl *hdl_create(Lm_list *, Rt_map *, Rt_map *, uint_t,
uint_t, uint_t);
extern int hdl_initialize(Grp_hdl *, Rt_map *, int, int);
extern int hwcap1_check(Syscapset *, Xword, Rej_desc *);
extern int hwcap2_check(Syscapset *, Xword, Rej_desc *);
extern void is_dep_init(Rt_map *, Rt_map *);
extern int is_move_data(caddr_t);
extern int is_path_secure(char *, Rt_map *, uint_t, uint_t);
extern int is_rtld_setuid();
extern int is_sym_interposer(Rt_map *, Sym *);
extern void ldso_plt_init(Rt_map *);
extern void leave(Lm_list *, int);
extern void lm_append(Lm_list *, Aliste, Rt_map *);
extern void lm_delete(Lm_list *, Rt_map *);
extern void lm_move(Lm_list *, Aliste, Aliste, Lm_cntl *,
Lm_cntl *);
extern Rt_map *load_cap(Lm_list *, Aliste, const char *, Rt_map *,
uint_t, uint_t, Grp_hdl **, Rej_desc *, int *);
extern void load_completion(Rt_map *);
extern Rt_map *load_file(Lm_list *, Aliste, Fdesc *, int *);
extern Rt_map *load_path(Lm_list *, Aliste, Rt_map *, int, uint_t,
Grp_hdl **, Fdesc *, Rej_desc *, int *);
extern Rt_map *load_one(Lm_list *, Aliste, Alist *, Rt_map *, int,
uint_t, Grp_hdl **, int *);
extern const char *load_trace(Lm_list *, Pdesc *, Rt_map *, Fdesc *);
extern void nfavl_insert(const char *, avl_index_t);
extern void *nu_map(Lm_list *, caddr_t, size_t, int, int);
extern Fct *map_obj(Lm_list *, Fdesc *, size_t, const char *, int,
Rej_desc *);
extern void *malloc(size_t);
extern int machcap_check(Syscapset *, const char *, Rej_desc *);
extern void machine_name(Syscapset *);
extern int move_data(Rt_map *, APlist **);
extern int platcap_check(Syscapset *, const char *, Rej_desc *);
extern void platform_name(Syscapset *);
extern int pnavl_recorded(avl_tree_t **, const char *, uint_t,
avl_index_t *);
extern void rd_event(Lm_list *, rd_event_e, r_state_e);
extern int readenv_user(const char **, Word *, Word *, int);
extern int readenv_config(Rtc_env *, Addr, int);
extern void rejection_inherit(Rej_desc *, Rej_desc *);
extern int relocate_lmc(Lm_list *, Aliste, Rt_map *, Rt_map *,
int *);
extern int relocate_finish(Rt_map *, APlist *, int);
extern void remove_cntl(Lm_list *, Aliste);
extern int remove_hdl(Grp_hdl *, Rt_map *, int *);
extern void remove_lmc(Lm_list *, Rt_map *, Aliste, const char *);
extern void remove_lml(Lm_list *);
extern void remove_plist(Alist **, int);
extern void remove_so(Lm_list *, Rt_map *);
extern int rt_cond_wait(Rt_cond *, Rt_lock *);
extern int rt_critical(void);
extern int rt_bind_guard(int);
extern int rt_bind_clear(int);
extern int rt_get_extern(Lm_list *, Rt_map *);
extern int rt_mutex_lock(Rt_lock *);
extern int rt_mutex_unlock(Rt_lock *);
extern void rt_thr_init(Lm_list *);
extern thread_t rt_thr_self(void);
extern void rtld_db_dlactivity(Lm_list *);
extern void rtld_db_preinit(Lm_list *);
extern void rtld_db_postinit(Lm_list *);
extern void rtldexit(Lm_list *, int);
#ifndef _LP64
extern int rtld_fstat(int, rtld_stat_t *restrict);
extern int rtld_stat(const char *restrict, rtld_stat_t *restrict);
#endif
extern int rtld_getopt(char **, char ***, auxv_t **, Word *,
Word *, int);
extern void security(uid_t, uid_t, gid_t, gid_t, int);
extern void set_environ(Lm_list *);
extern void set_dirs(Alist **, Spath_defn *, uint_t);
extern int set_prot(Rt_map *, mmapobj_result_t *, int);
extern Rt_map *setup(char **, auxv_t *, Word, char *, int, char *,
ulong_t, ulong_t, int fd, Phdr *, char *, char **,
uid_t, uid_t, gid_t, gid_t, void *, int, uint_t);
extern const char *stravl_insert(const char *, uint_t, size_t, int);
extern void spavl_insert(const char *);
extern int sfcap1_check(Syscapset *, Xword, Rej_desc *);
extern int tls_assign(Lm_list *, Rt_map *, Phdr *);
extern void tls_modaddrem(Rt_map *, uint_t);
extern int tls_statmod(Lm_list *, Rt_map *);
extern Rt_map **tsort(Rt_map *, int, int);
extern void unused(Lm_list *);
extern void unmap_obj(mmapobj_result_t *, uint_t);
extern int update_mode(Rt_map *, int, int);
extern void zero(caddr_t, size_t);
#if defined(__sparc)
/*
* SPARC Register symbol support.
*/
extern int elf_regsyms(Rt_map *);
extern void set_sparc_g1(ulong_t);
extern void set_sparc_g2(ulong_t);
extern void set_sparc_g3(ulong_t);
extern void set_sparc_g4(ulong_t);
extern void set_sparc_g5(ulong_t);
extern void set_sparc_g6(ulong_t);
extern void set_sparc_g7(ulong_t);
#endif
extern long _sysconfig(int);
#ifdef __cplusplus
}
#endif
#endif /* __RTLD_H */