xref: /illumos-gate/usr/src/cmd/sgs/liblddbg/common/got.c (revision f808c858fa61e7769218966759510a8b1190dfcf)
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 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include	<stdlib.h>
29 #include	"_debug.h"
30 #include	"msg.h"
31 #include	"libld.h"
32 
33 
34 static int
35 Dbg_got_compare(Gottable *gtp1, Gottable *gtp2)
36 {
37 	Gotndx	*gnp1 = &gtp1->gt_gndx;
38 	Gotndx	*gnp2 = &gtp2->gt_gndx;
39 
40 	if (gnp1->gn_gotndx > gnp2->gn_gotndx)
41 		return (1);
42 	if (gnp1->gn_gotndx < gnp2->gn_gotndx)
43 		return (-1);
44 
45 	return (0);
46 }
47 
48 void
49 Dbg_got_display(Ofl_desc *ofl, Off goff, int stage)
50 {
51 	Lm_list		*lml = ofl->ofl_lml;
52 	Gottable	*gtp = ofl->ofl_gottable;
53 	Word		gotndx;
54 	Xword		*gptr;
55 
56 	if (DBG_NOTCLASS(DBG_C_GOT))
57 		return;
58 
59 	if (ofl->ofl_gotcnt == M_GOT_XNumber)
60 		return;
61 
62 	Dbg_util_nl(lml, DBG_NL_STD);
63 	dbg_print(lml, MSG_INTL(MSG_GOT_INFO), EC_WORD(ofl->ofl_gotcnt));
64 
65 	if (DBG_NOTDETAIL())
66 		return;
67 
68 	qsort((char *)gtp, ofl->ofl_gotcnt, sizeof (Gottable),
69 	    (int(*)(const void *, const void *))Dbg_got_compare);
70 
71 	if (stage == 0)
72 		dbg_print(lml, MSG_INTL(MSG_GOT_COLUMNS1));
73 	else
74 		dbg_print(lml, MSG_INTL(MSG_GOT_COLUMNS2));
75 
76 	gptr = (Xword *)ofl->ofl_osgot->os_outdata->d_buf;
77 
78 	for (gotndx = 0; gotndx < ofl->ofl_gotcnt; gotndx++, gtp++, gptr++) {
79 		Sym_desc	*sdp = gtp->gt_sym;
80 		const char	*refstr, *name;
81 		Gotndx		*gnp = &gtp->gt_gndx;
82 		Lword		gotaddval;
83 		Off		off = goff + (gotndx * M_GOT_ENTSIZE);
84 		char		index[INDEX_STR_SIZE];
85 
86 		(void) snprintf(index, INDEX_STR_SIZE, MSG_ORIG(MSG_GOT_INDEX),
87 		    EC_SWORD(gnp->gn_gotndx));
88 
89 		if (sdp == 0)
90 			refstr = MSG_ORIG(MSG_STR_EMPTY);
91 		else if (sdp->sd_flags & FLG_SY_SMGOT)
92 			refstr = MSG_ORIG(MSG_GOT_SMALL_PIC);
93 		else
94 			refstr = MSG_ORIG(MSG_GOT_BIG_PIC);
95 
96 		if (sdp == 0)
97 			name = MSG_ORIG(MSG_STR_EMPTY);
98 		else if (sdp->sd_name)
99 			name = Dbg_demangle_name(sdp->sd_name);
100 		else
101 			name = MSG_INTL(MSG_STR_UNKNOWN);
102 
103 		if (stage == 0)
104 			gotaddval = gnp->gn_addend;
105 		else
106 			gotaddval = *gptr;
107 
108 		if ((sdp == 0) || (sdp->sd_sym->st_shndx == SHN_UNDEF) ||
109 		    (sdp->sd_file == 0)) {
110 			dbg_print(lml, MSG_INTL(MSG_GOT_FORMAT1), index,
111 			    refstr, EC_OFF(off), EC_XWORD(gotaddval), name);
112 		} else {
113 			dbg_print(lml, MSG_INTL(MSG_GOT_FORMAT2), index,
114 			    refstr, EC_OFF(off), EC_XWORD(gotaddval),
115 			    sdp->sd_file->ifl_name, name);
116 		}
117 	}
118 }
119 
120 void
121 Elf_got_title(Lm_list *lml)
122 {
123 	dbg_print(lml, MSG_INTL(MSG_GOT_TITLE));
124 }
125 
126 void
127 Elf_got_entry(Lm_list *lml, Sword ndx, Addr addr, Xword value, Half mach,
128     Word type, void *reloc, const char *name)
129 {
130 	Rela		*rela;
131 	Rel		*rel;
132 	const char	*str;
133 	char		index[INDEX_STR_SIZE];
134 
135 	(void) snprintf(index, INDEX_STR_SIZE, MSG_ORIG(MSG_GOT_INDEX),
136 	    EC_SWORD(ndx));
137 
138 	if (reloc) {
139 		if (type == SHT_RELA) {
140 			rela = (Rela *)reloc;
141 			str = conv_reloc_type(mach, ELF_R_TYPE(rela->r_info),
142 				0);
143 		} else {
144 			rel = (Rel *)reloc;
145 			str = conv_reloc_type(mach, ELF_R_TYPE(rel->r_info),
146 				0);
147 		}
148 
149 		if (name)
150 			name = Elf_demangle_name(name);
151 		else
152 			name = MSG_ORIG(MSG_STR_EMPTY);
153 
154 		dbg_print(lml, MSG_INTL(MSG_GOT_ENTRY_RE), index, EC_ADDR(addr),
155 		    EC_XWORD(value), str, name);
156 	} else
157 		dbg_print(lml, MSG_INTL(MSG_GOT_ENTRY_NR), index, EC_ADDR(addr),
158 		    EC_XWORD(value));
159 }
160