xref: /titanic_41/usr/src/cmd/sgs/liblddbg/common/bindings.c (revision 1a1a84a324206b6b1f5f704ab166c4ebf78aed76)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include	<sys/types.h>
28 #include	<string.h>
29 #include	<debug.h>
30 #include	<conv.h>
31 #include	"_debug.h"
32 #include	"msg.h"
33 
34 void
35 Dbg_bind_plt_summary(Lm_list *lml, Half mach, Word pltcnt21d, Word pltcnt24d,
36     Word pltcntu32, Word pltcntu44, Word pltcntfull, Word pltcntfar)
37 {
38 	Word plttotal = pltcnt21d + pltcnt24d + pltcntu32 +
39 	    pltcntu44 + pltcntfull + pltcntfar;
40 
41 	if (DBG_NOTCLASS(DBG_C_BINDINGS))
42 		return;
43 
44 	switch (mach) {
45 	case EM_SPARC:
46 		dbg_print(lml, 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(lml, MSG_INTL(MSG_BND_PSUM_SPARCV9),
51 		    EC_WORD(pltcnt21d), EC_WORD(pltcnt24d), EC_WORD(pltcntu32),
52 		    EC_WORD(pltcntu44), EC_WORD(pltcntfull), EC_WORD(pltcntfar),
53 		    EC_WORD(plttotal));
54 		break;
55 	default:
56 		dbg_print(lml, MSG_INTL(MSG_BND_PSUM_DEFAULT),
57 		    EC_WORD(plttotal));
58 		break;
59 	};
60 }
61 
62 static const char	*pltbindtypes[PLT_T_NUM] = {
63 	MSG_ORIG(MSG_STR_EMPTY),	/* PLT_T_NONE */
64 	MSG_ORIG(MSG_PLT_21D),		/* PLT_T_21D */
65 	MSG_ORIG(MSG_PLT_24D),		/* PLT_T_24D */
66 	MSG_ORIG(MSG_PLT_U32),		/* PLT_T_U32 */
67 	MSG_ORIG(MSG_PLT_U44),		/* PLT_T_U44 */
68 	MSG_ORIG(MSG_PLT_FULL),		/* PLT_T_FULL */
69 	MSG_ORIG(MSG_PLT_FAR)		/* PLT_T_FAR */
70 };
71 
72 #define	BINFOSZ	MSG_BINFO_START_SIZE + \
73 		MSG_BINFO_DIRECT_SIZE +		MSG_BINFO_SEP_SIZE + \
74 		MSG_BINFO_INTERPOSE_SIZE +	MSG_BINFO_SEP_SIZE + \
75 		MSG_BINFO_COPYREF_SIZE +	MSG_BINFO_SEP_SIZE + \
76 		MSG_BINFO_FILTEE_SIZE +		MSG_BINFO_SEP_SIZE + \
77 		MSG_BINFO_PLTADDR_SIZE + \
78 		CONV_INV_BUFSIZE + MSG_BINFO_END_SIZE
79 
80 
81 void
82 Dbg_bind_global(Rt_map *flmp, Addr fabs, Off foff, Xword pltndx,
83     Pltbindtype pbtype, Rt_map *tlmp, Addr tabs, Off toff,
84     const char *sym, uint_t binfo)
85 {
86 	static char binfostr[BINFOSZ];
87 	static Val_desc vda[] = {
88 		{ DBG_BINFO_DIRECT,	MSG_ORIG(MSG_BINFO_DIRECT) },
89 		{ DBG_BINFO_INTERPOSE,	MSG_ORIG(MSG_BINFO_INTERPOSE) },
90 		{ DBG_BINFO_COPYREF,	MSG_ORIG(MSG_BINFO_COPYREF) },
91 		{ DBG_BINFO_FILTEE,	MSG_ORIG(MSG_BINFO_FILTEE) },
92 		{ DBG_BINFO_PLTADDR,	MSG_ORIG(MSG_BINFO_PLTADDR) },
93 		{ 0,			0 }
94 	};
95 	static CONV_EXPN_FIELD_ARG conv_arg = { binfostr, sizeof (binfostr),
96 		vda, NULL, 0, 0, MSG_ORIG(MSG_BINFO_START),
97 		MSG_ORIG(MSG_BINFO_SEP), MSG_ORIG(MSG_BINFO_END) };
98 
99 	const char	*ffile = NAME(flmp);
100 	const char	*tfile = NAME(tlmp);
101 	Lm_list		*lml = LIST(flmp);
102 
103 	if (DBG_NOTCLASS(DBG_C_BINDINGS))
104 		return;
105 
106 	if (DBG_NOTDETAIL()) {
107 		dbg_print(lml, MSG_INTL(MSG_BND_BASIC), ffile, tfile,
108 		    Dbg_demangle_name(sym));
109 		return;
110 	}
111 
112 	/*
113 	 * Determine if this binding has any associated information, such as
114 	 * interposition, direct binding, copy-relocations, etc.
115 	 */
116 	binfo &= ~DBG_BINFO_FOUND;
117 	binfo &= DBG_BINFO_MSK;
118 	if (binfo) {
119 		conv_arg.oflags = conv_arg.rflags = binfo;
120 		(void) conv_expn_field(&conv_arg, 0);
121 	} else {
122 		binfostr[0] = '\0';
123 	}
124 
125 	if (pltndx != (Xword)-1) {
126 		const char	*pltstring;
127 
128 		if (pbtype < PLT_T_NUM)
129 			pltstring = pltbindtypes[pbtype];
130 		else
131 			pltstring = pltbindtypes[PLT_T_NONE];
132 
133 		/*
134 		 * Called from a plt offset.
135 		 */
136 		dbg_print(lml, MSG_INTL(MSG_BND_PLT), ffile, EC_ADDR(fabs),
137 		    EC_OFF(foff), EC_XWORD(pltndx), pltstring, tfile,
138 		    EC_ADDR(tabs), EC_OFF(toff), Dbg_demangle_name(sym),
139 		    binfostr);
140 
141 	} else if ((fabs == 0) && (foff == 0)) {
142 		/*
143 		 * Called from a dlsym().  We're not performing a relocation,
144 		 * but are handing the address of the symbol back to the user.
145 		 */
146 		dbg_print(lml, MSG_INTL(MSG_BND_DLSYM), ffile, tfile,
147 		    EC_ADDR(tabs), EC_OFF(toff), Dbg_demangle_name(sym),
148 		    binfostr);
149 	} else {
150 		/*
151 		 * Standard relocation.
152 		 */
153 		dbg_print(lml, MSG_INTL(MSG_BND_DEFAULT), ffile, EC_ADDR(fabs),
154 		    EC_OFF(foff), tfile, EC_ADDR(tabs), EC_OFF(toff),
155 		    Dbg_demangle_name(sym), binfostr);
156 	}
157 }
158 
159 void
160 Dbg_bind_reject(Rt_map *flmp, Rt_map *tlmp, const char *sym, int why)
161 {
162 	static Msg reason[DBG_BNDREJ_NUM + 1] = {
163 		MSG_BNDREJ_DIRECT,	/* MSG_INTL(MSG_BNDREJ_DIRECT) */
164 		MSG_BNDREJ_GROUP,	/* MSG_INTL(MSG_BNDREJ_GROUP) */
165 		MSG_BNDREJ_SINGLE	/* MSG_INTL(MSG_BNDREJ_SINGLE) */
166 	};
167 
168 	if (DBG_NOTCLASS(DBG_C_BINDINGS))
169 		return;
170 
171 	dbg_print(LIST(flmp), MSG_INTL(MSG_BND_REJECT), NAME(flmp), NAME(tlmp),
172 	    sym, MSG_INTL(reason[why]));
173 }
174 
175 void
176 Dbg_bind_weak(Rt_map *flmp, Addr fabs, Addr frel, const char *sym)
177 {
178 	Lm_list		*lml = LIST(flmp);
179 	const char	*ffile = NAME(flmp);
180 
181 	if (DBG_NOTCLASS(DBG_C_BINDINGS))
182 		return;
183 
184 	if (DBG_NOTDETAIL())
185 		dbg_print(lml, MSG_INTL(MSG_BND_WEAK_1), ffile,
186 		    Dbg_demangle_name(sym));
187 	else
188 		dbg_print(lml, MSG_INTL(MSG_BND_WEAK_2), ffile, EC_ADDR(fabs),
189 		    EC_ADDR(frel), Dbg_demangle_name(sym));
190 }
191 
192 #if	defined(_ELF64)
193 
194 void
195 Dbg_bind_pltpad_to(Rt_map *lmp, Addr pltpad, const char *dfile,
196     const char *sname)
197 {
198 	if (DBG_NOTCLASS(DBG_C_RELOC))
199 		return;
200 	if (DBG_NOTDETAIL())
201 		return;
202 
203 	dbg_print(LIST(lmp), MSG_INTL(MSG_BND_PLTPAD_TO), EC_ADDR(pltpad),
204 	    NAME(lmp), dfile, sname);
205 }
206 
207 void
208 Dbg_bind_pltpad_from(Rt_map *lmp, Addr pltpad, const char *sname)
209 {
210 	if (DBG_NOTCLASS(DBG_C_RELOC))
211 		return;
212 	if (DBG_NOTDETAIL())
213 		return;
214 
215 	dbg_print(LIST(lmp), MSG_INTL(MSG_BND_PLTPAD_FROM), EC_ADDR(pltpad),
216 	    NAME(lmp), sname);
217 }
218 
219 #endif
220