xref: /titanic_41/usr/src/cmd/sgs/liblddbg/common/bindings.c (revision fd9cb95cbb2f626355a60efb9d02c5f0a33c10e6)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 
29 #include	<sys/types.h>
30 #include	<string.h>
31 #include	"msg.h"
32 #include	"_debug.h"
33 
34 void
35 Dbg_bind_plt_summary(Half mach, Word pltcnt21d, Word pltcnt24d, Word pltcntu32,
36     Word pltcntu44, Word pltcntfull, Word pltcntfar)
37 {
38 	Word plttotal = pltcnt21d + pltcnt24d + pltcntu32 +
39 		pltcntu44 + pltcntfull + pltcntfar;
40 
41 	if (DBG_NOTCLASS(DBG_BINDINGS))
42 		return;
43 
44 	switch (mach) {
45 	case EM_SPARC:
46 		dbg_print(MSG_INTL(MSG_BND_PSUM_SPARC), EC_WORD(pltcnt21d),
47 		    EC_WORD(pltcnt24d), EC_WORD(pltcntfull), EC_WORD(plttotal));
48 		break;
49 	case EM_SPARCV9:
50 		dbg_print(MSG_INTL(MSG_BND_PSUM_SPARCV9), EC_WORD(pltcnt21d),
51 		    EC_WORD(pltcnt24d), EC_WORD(pltcntu32), EC_WORD(pltcntu44),
52 		    EC_WORD(pltcntfull), EC_WORD(pltcntfar), EC_WORD(plttotal));
53 		break;
54 	default:
55 		dbg_print(MSG_INTL(MSG_BND_PSUM_DEFAULT), EC_WORD(plttotal));
56 		break;
57 	};
58 }
59 
60 static const char	*pltbindtypes[PLT_T_NUM] = {
61 	MSG_ORIG(MSG_STR_EMPTY),	/* PLT_T_NONE */
62 	MSG_ORIG(MSG_PLT_21D),		/* PLT_T_21D */
63 	MSG_ORIG(MSG_PLT_24D),		/* PLT_T_24D */
64 	MSG_ORIG(MSG_PLT_U32),		/* PLT_T_U32 */
65 	MSG_ORIG(MSG_PLT_U44),		/* PLT_T_U44 */
66 	MSG_ORIG(MSG_PLT_FULL),		/* PLT_T_FULL */
67 	MSG_ORIG(MSG_PLT_FAR)		/* PLT_T_FAR */
68 };
69 
70 #define	BINFOSZ	MSG_BINFO_START_SIZE + \
71 		MSG_BINFO_DIRECT_SIZE + \
72 		MSG_BINFO_SEP_SIZE + \
73 		MSG_BINFO_COPYREF_SIZE + \
74 		MSG_BINFO_SEP_SIZE + \
75 		MSG_BINFO_FILTEE_SIZE + \
76 		MSG_BINFO_SEP_SIZE + \
77 		MSG_BINFO_PLTADDR_SIZE + \
78 		MSG_BINFO_END_SIZE + 1
79 
80 /*
81  * Normally we don't want to display any ld.so.1 bindings (i.e. the bindings
82  * to these calls themselves). So, if a Dbg_bind_global() originates from
83  * ld.so.1 don't print anything.  If we really want to see the ld.so.1 bindings,
84  * simply give the run-time linker a different SONAME.
85  */
86 void
87 Dbg_bind_global(const char *ffile, caddr_t fabs, caddr_t frel, Xword pltndx,
88     Pltbindtype pbtype, const char *tfile, caddr_t tabs, caddr_t trel,
89     const char *sym, uint_t binfo)
90 {
91 	const char	*rfile;
92 	char		binfostr[BINFOSZ];
93 
94 	if (DBG_NOTCLASS(DBG_BINDINGS))
95 		return;
96 
97 	if ((rfile = strrchr(ffile, '/')) == NULL)
98 		rfile = ffile;
99 	else
100 		rfile++;
101 
102 	if (strcmp(rfile, MSG_ORIG(MSG_FIL_RTLD)) == 0)
103 		return;
104 
105 	if (DBG_NOTDETAIL()) {
106 		dbg_print(MSG_INTL(MSG_BND_BASIC), ffile, tfile,
107 		    _Dbg_sym_dem(sym));
108 		return;
109 	}
110 
111 	/*
112 	 * Determine if this binding has any associated information, such as
113 	 * and interposition, direct binding, copy-relocations, etc.
114 	 */
115 	binfo &= ~DBG_BINFO_FOUND;
116 	binfo &= DBG_BINFO_MSK;
117 	if (binfo) {
118 		int	_binfo = 0;
119 
120 		(void) strcpy(binfostr, MSG_ORIG(MSG_BINFO_START));
121 		if (binfo & DBG_BINFO_DIRECT) {
122 			_binfo |= DBG_BINFO_DIRECT;
123 			(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_DIRECT));
124 		}
125 		if (binfo & DBG_BINFO_INTERPOSE) {
126 			if (_binfo)
127 			    (void) strcat(binfostr, MSG_ORIG(MSG_BINFO_SEP));
128 			_binfo |= DBG_BINFO_INTERPOSE;
129 			(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_INTERPOSE));
130 		}
131 		if (binfo & DBG_BINFO_COPYREF) {
132 			if (_binfo)
133 			    (void) strcat(binfostr, MSG_ORIG(MSG_BINFO_SEP));
134 			_binfo |= DBG_BINFO_COPYREF;
135 			(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_COPYREF));
136 		}
137 		if (binfo & DBG_BINFO_FILTEE) {
138 			if (_binfo)
139 			    (void) strcat(binfostr, MSG_ORIG(MSG_BINFO_SEP));
140 			_binfo |= DBG_BINFO_FILTEE;
141 			(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_FILTEE));
142 		}
143 		if (binfo & DBG_BINFO_PLTADDR) {
144 			if (_binfo)
145 			    (void) strcat(binfostr, MSG_ORIG(MSG_BINFO_SEP));
146 			_binfo |= DBG_BINFO_PLTADDR;
147 			(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_PLTADDR));
148 		}
149 		if (binfo & ~_binfo) {
150 			size_t	len;
151 
152 			if (_binfo)
153 			    (void) strcat(binfostr, MSG_ORIG(MSG_BINFO_SEP));
154 
155 			len = strlen(binfostr);
156 			conv_invalid_str(&binfostr[len], (BINFOSZ - len),
157 			    (Lword)(binfo & ~_binfo), 0);
158 		}
159 		(void) strcat(binfostr, MSG_ORIG(MSG_BINFO_END));
160 	} else
161 		binfostr[0] = '\0';
162 
163 
164 	if (pltndx != (Xword)-1) {
165 		const char	*pltstring;
166 
167 		if (pbtype < PLT_T_NUM)
168 			pltstring = pltbindtypes[pbtype];
169 		else
170 			pltstring = pltbindtypes[PLT_T_NONE];
171 
172 		/*
173 		 * Called from a plt offset.
174 		 */
175 		dbg_print(MSG_INTL(MSG_BND_PLT), ffile, EC_ADDR(fabs),
176 		    EC_ADDR(frel), EC_WORD(pltndx), pltstring, tfile,
177 		    EC_ADDR(tabs), EC_ADDR(trel), _Dbg_sym_dem(sym), binfostr);
178 
179 	} else if ((fabs == 0) && (frel == 0)) {
180 		/*
181 		 * Called from a dlsym().  We're not performing a relocation,
182 		 * but are handing the address of the symbol back to the user.
183 		 */
184 		dbg_print(MSG_INTL(MSG_BND_DLSYM), ffile, tfile, EC_ADDR(tabs),
185 		    EC_ADDR(trel), _Dbg_sym_dem(sym), binfostr);
186 
187 	} else {
188 		/*
189 		 * Standard relocation.
190 		 */
191 		dbg_print(MSG_INTL(MSG_BND_DEFAULT), ffile, EC_ADDR(fabs),
192 		    EC_ADDR(frel), tfile, EC_ADDR(tabs), EC_ADDR(trel),
193 		    _Dbg_sym_dem(sym), binfostr);
194 	}
195 }
196 
197 void
198 Dbg_bind_weak(const char *ffile, caddr_t fabs, caddr_t frel, const char *sym)
199 {
200 	if (DBG_NOTCLASS(DBG_BINDINGS))
201 		return;
202 
203 	if (DBG_NOTDETAIL())
204 		dbg_print(MSG_INTL(MSG_BND_WEAK_1), ffile, _Dbg_sym_dem(sym));
205 	else
206 		dbg_print(MSG_INTL(MSG_BND_WEAK_2), ffile, EC_ADDR(fabs),
207 		    EC_ADDR(frel), _Dbg_sym_dem(sym));
208 }
209 
210 void
211 Dbg_bind_profile(uint_t ndx, uint_t count)
212 {
213 	if (DBG_NOTCLASS(DBG_BINDINGS))
214 		return;
215 	if (DBG_NOTDETAIL())
216 		return;
217 
218 	dbg_print(MSG_INTL(MSG_BND_PROFILE), EC_WORD(ndx), EC_WORD(count));
219 }
220