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 <stdio.h>
28 #include "_debug.h"
29 #include "msg.h"
30 #include "libld.h"
31
32
33 static int
Dbg_got_compare(Gottable * gtp1,Gottable * gtp2)34 Dbg_got_compare(Gottable *gtp1, Gottable *gtp2)
35 {
36 Gotndx *gnp1 = >p1->gt_gndx;
37 Gotndx *gnp2 = >p2->gt_gndx;
38
39 if (gnp1->gn_gotndx > gnp2->gn_gotndx)
40 return (1);
41 if (gnp1->gn_gotndx < gnp2->gn_gotndx)
42 return (-1);
43
44 return (0);
45 }
46
47 void
Dbg_got_display(Ofl_desc * ofl,Off goff,int stage,Word m_got_xnumber,size_t m_got_entsize)48 Dbg_got_display(Ofl_desc *ofl, Off goff, int stage,
49 Word m_got_xnumber, size_t m_got_entsize)
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 = >p->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
Elf_got_title(Lm_list * lml)121 Elf_got_title(Lm_list *lml)
122 {
123 dbg_print(lml, MSG_INTL(MSG_GOT_TITLE));
124 }
125
126 void
Elf_got_entry(Lm_list * lml,Sword ndx,Addr addr,Xword value,Half mach,uchar_t ei_target_data,uchar_t ei_host_data,Word type,void * reloc,const char * name)127 Elf_got_entry(Lm_list *lml, Sword ndx, Addr addr, Xword value, Half mach,
128 uchar_t ei_target_data, uchar_t ei_host_data, Word type, void *reloc,
129 const char *name)
130 {
131 Rela *rela;
132 Rel *rel;
133 const char *str;
134 Conv_inv_buf_t inv_buf;
135 char index[INDEX_STR_SIZE];
136
137 (void) snprintf(index, INDEX_STR_SIZE, MSG_ORIG(MSG_GOT_INDEX),
138 EC_SWORD(ndx));
139
140 /*
141 * Got sections are SHT_PROGBITS, and are therefore not xlated by
142 * libelf. If the target system has a different byte order than
143 * the system displaying the data, swap the bytes so they are
144 * presented properly.
145 */
146 if (ei_target_data != ei_host_data)
147 value = BSWAP_XWORD(value);
148
149 if (reloc) {
150 if (type == SHT_RELA) {
151 rela = (Rela *)reloc;
152 str = conv_reloc_type(mach,
153 ELF_R_TYPE(rela->r_info, mach), 0, &inv_buf);
154 } else {
155 rel = (Rel *)reloc;
156 str = conv_reloc_type(mach,
157 ELF_R_TYPE(rel->r_info, mach), 0, &inv_buf);
158 }
159
160 if (name)
161 name = Elf_demangle_name(name);
162 else
163 name = MSG_ORIG(MSG_STR_EMPTY);
164
165 dbg_print(lml, MSG_INTL(MSG_GOT_ENTRY_RE), index, EC_ADDR(addr),
166 EC_XWORD(value), str, name);
167 } else
168 dbg_print(lml, MSG_INTL(MSG_GOT_ENTRY_NR), index, EC_ADDR(addr),
169 EC_XWORD(value));
170 }
171