17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*20c1c355SRod Evans  * Common Development and Distribution License (the "License").
6*20c1c355SRod Evans  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21*20c1c355SRod Evans 
227c478bd9Sstevel@tonic-gate /*
23*20c1c355SRod Evans  * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
247c478bd9Sstevel@tonic-gate  */
257c478bd9Sstevel@tonic-gate #include <stdio.h>
267c478bd9Sstevel@tonic-gate #include <stdlib.h>
277c478bd9Sstevel@tonic-gate #include <link.h>
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #include "env.h"
307c478bd9Sstevel@tonic-gate 
31*20c1c355SRod Evans static Elist	*bindto_list = NULL;
32*20c1c355SRod Evans static Elist	*bindfrom_list = NULL;
337c478bd9Sstevel@tonic-gate static FILE	*output = stdout;
347c478bd9Sstevel@tonic-gate 
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate uint_t
la_version(uint_t version)377c478bd9Sstevel@tonic-gate la_version(uint_t version)
387c478bd9Sstevel@tonic-gate {
397c478bd9Sstevel@tonic-gate 	if (version < LAV_CURRENT) {
407c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr,
41*20c1c355SRod Evans 		    "symbindrep.so: unexpected version: %d\n", version);
427c478bd9Sstevel@tonic-gate 		return (0);
437c478bd9Sstevel@tonic-gate 	}
447c478bd9Sstevel@tonic-gate 
457c478bd9Sstevel@tonic-gate 	build_env_list(&bindto_list, (const char *)"SYMBINDREP_BINDTO");
467c478bd9Sstevel@tonic-gate 	build_env_list(&bindfrom_list, (const char *)"SYMBINDREP_BINDFROM");
477c478bd9Sstevel@tonic-gate 
487c478bd9Sstevel@tonic-gate #ifdef _LP64
49*20c1c355SRod Evans 	(void) fprintf(output,
50*20c1c355SRod Evans 	    "                            Symbol Bindings\n\n"
51*20c1c355SRod Evans 	    "Referencing                  Defining\n"
52*20c1c355SRod Evans 	    "Object                       Object                       Symbol\n"
53*20c1c355SRod Evans 	    "---------------------------------------------------------------"
54*20c1c355SRod Evans 	    "-------------------\n");
557c478bd9Sstevel@tonic-gate #else
56*20c1c355SRod Evans 	(void) fprintf(output,
57*20c1c355SRod Evans 	    "                    Symbol Bindings\n\n"
58*20c1c355SRod Evans 	    "Referencing          Defining\n"
59*20c1c355SRod Evans 	    "Object               Object               Symbol\n"
60*20c1c355SRod Evans 	    "---------------------------------------------------------------"
61*20c1c355SRod Evans 	    "---\n");
627c478bd9Sstevel@tonic-gate #endif
637c478bd9Sstevel@tonic-gate 	return (LAV_CURRENT);
647c478bd9Sstevel@tonic-gate }
657c478bd9Sstevel@tonic-gate 
667c478bd9Sstevel@tonic-gate /* ARGSUSED1 */
677c478bd9Sstevel@tonic-gate uint_t
la_objopen(Link_map * lmp,Lmid_t lmid,uintptr_t * cookie)687c478bd9Sstevel@tonic-gate la_objopen(Link_map *lmp, Lmid_t lmid, uintptr_t *cookie)
697c478bd9Sstevel@tonic-gate {
707c478bd9Sstevel@tonic-gate 	uint_t		flags;
717c478bd9Sstevel@tonic-gate 
72*20c1c355SRod Evans 	if ((bindto_list == NULL) ||
737c478bd9Sstevel@tonic-gate 	    (check_list(bindto_list, lmp->l_name)))
747c478bd9Sstevel@tonic-gate 		flags = LA_FLG_BINDTO;
757c478bd9Sstevel@tonic-gate 	else
767c478bd9Sstevel@tonic-gate 		flags = 0;
777c478bd9Sstevel@tonic-gate 
78*20c1c355SRod Evans 	if ((bindfrom_list == NULL) ||
797c478bd9Sstevel@tonic-gate 	    (check_list(bindfrom_list, lmp->l_name)))
807c478bd9Sstevel@tonic-gate 		flags |= LA_FLG_BINDFROM;
817c478bd9Sstevel@tonic-gate 
827c478bd9Sstevel@tonic-gate 	*cookie = (uintptr_t)lmp->l_name;
837c478bd9Sstevel@tonic-gate 	return (flags);
847c478bd9Sstevel@tonic-gate }
857c478bd9Sstevel@tonic-gate 
867c478bd9Sstevel@tonic-gate 
877c478bd9Sstevel@tonic-gate /* ARGSUSED1 */
887c478bd9Sstevel@tonic-gate #if	defined(_LP64)
897c478bd9Sstevel@tonic-gate uintptr_t
la_symbind64(Elf64_Sym * symp,uint_t symndx,uintptr_t * refcook,uintptr_t * defcook,uint_t * sb_flags,const char * sym_name)907c478bd9Sstevel@tonic-gate la_symbind64(Elf64_Sym *symp, uint_t symndx, uintptr_t *refcook,
917c478bd9Sstevel@tonic-gate 	uintptr_t *defcook, uint_t *sb_flags, const char *sym_name)
927c478bd9Sstevel@tonic-gate #else
937c478bd9Sstevel@tonic-gate uintptr_t
947c478bd9Sstevel@tonic-gate la_symbind32(Elf32_Sym *symp, uint_t symndx, uintptr_t *refcook,
957c478bd9Sstevel@tonic-gate 	uintptr_t *defcook, uint_t *sb_flags)
967c478bd9Sstevel@tonic-gate #endif
977c478bd9Sstevel@tonic-gate {
987c478bd9Sstevel@tonic-gate #if	!defined(_LP64)
997c478bd9Sstevel@tonic-gate 	const char	*sym_name = (const char *)symp->st_name;
1007c478bd9Sstevel@tonic-gate #endif
1017c478bd9Sstevel@tonic-gate 
1027c478bd9Sstevel@tonic-gate 	(void) fprintf(output, "%-28s %-28s %s\n", (char *)(*refcook),
1037c478bd9Sstevel@tonic-gate 		(char *)(*defcook), sym_name);
1047c478bd9Sstevel@tonic-gate 
1057c478bd9Sstevel@tonic-gate 	return (symp->st_value);
1067c478bd9Sstevel@tonic-gate }
1077c478bd9Sstevel@tonic-gate 
1087c478bd9Sstevel@tonic-gate /*
1097c478bd9Sstevel@tonic-gate  * Since we only want to report on the symbol bindings for this
1107c478bd9Sstevel@tonic-gate  * process and we *do not* want the actual program to run we exit
1117c478bd9Sstevel@tonic-gate  * at this point.
1127c478bd9Sstevel@tonic-gate  */
1137c478bd9Sstevel@tonic-gate /* ARGSUSED0 */
1147c478bd9Sstevel@tonic-gate void
la_preinit(uintptr_t * cookie)1157c478bd9Sstevel@tonic-gate la_preinit(uintptr_t *cookie)
1167c478bd9Sstevel@tonic-gate {
1177c478bd9Sstevel@tonic-gate 	(void) fflush(output);
1187c478bd9Sstevel@tonic-gate 	exit(0);
1197c478bd9Sstevel@tonic-gate }
120