xref: /illumos-gate/usr/src/cmd/sgs/liblddbg/common/segments.c (revision 9a016c63ca347047a236dff12f0da83aac8981d1)
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	"msg.h"
29 #include	"_debug.h"
30 #include	"libld.h"
31 
32 
33 /*
34  * Print out a single `segment descriptor' entry.
35  */
36 void
37 Dbg_seg_desc_entry(Lm_list *lml, Half mach, int ndx, Sg_desc *sgp)
38 {
39 	const char	*str;
40 
41 	if (sgp->sg_name && *sgp->sg_name)
42 		str = sgp->sg_name;
43 	else
44 		str = MSG_INTL(MSG_STR_NULL);
45 
46 	Dbg_util_nl(lml, DBG_NL_STD);
47 	dbg_print(lml, MSG_ORIG(MSG_SEG_NAME), ndx, str);
48 
49 	Elf_phdr(lml, mach, &sgp->sg_phdr);
50 
51 	dbg_print(lml, MSG_ORIG(MSG_SEG_LENGTH), EC_ADDR(sgp->sg_length));
52 	dbg_print(lml, MSG_ORIG(MSG_SEG_FLAGS),
53 	    conv_seg_flags(sgp->sg_flags));
54 
55 	if (sgp->sg_sizesym && sgp->sg_sizesym->sd_name)
56 		dbg_print(lml, MSG_ORIG(MSG_SEG_SIZESYM),
57 		    Dbg_demangle_name(sgp->sg_sizesym->sd_name));
58 
59 	if (sgp->sg_secorder) {
60 		Aliste		off;
61 		Sec_order	**scopp;
62 
63 		dbg_print(lml, MSG_ORIG(MSG_SEG_ORDER));
64 		for (ALIST_TRAVERSE(sgp->sg_secorder, off, scopp)) {
65 			Sec_order	*scop = *scopp;
66 
67 			dbg_print(lml, MSG_ORIG(MSG_SEG_SECTION),
68 			    scop->sco_secname, EC_WORD(scop->sco_index));
69 		}
70 	}
71 }
72 
73 void
74 Dbg_seg_title(Lm_list *lml)
75 {
76 	if (DBG_NOTCLASS(DBG_C_SEGMENTS))
77 		return;
78 
79 	Dbg_util_nl(lml, DBG_NL_STD);
80 	dbg_print(lml, MSG_INTL(MSG_SEG_DESC_INUSE));
81 }
82 
83 void
84 Dbg_seg_entry(Ofl_desc *ofl, int ndx, Sg_desc *sgp)
85 {
86 	if (DBG_NOTCLASS(DBG_C_SEGMENTS))
87 		return;
88 
89 	Dbg_seg_desc_entry(ofl->ofl_lml, ofl->ofl_dehdr->e_machine, ndx, sgp);
90 }
91 
92 /*
93  * Print out the available segment descriptors.
94  */
95 void
96 Dbg_seg_list(Lm_list *lml, Half mach, List *lsg)
97 {
98 	Listnode	*lnp;
99 	Sg_desc		*sgp;
100 	int		ndx = 0;
101 
102 	if (DBG_NOTCLASS(DBG_C_SEGMENTS))
103 		return;
104 
105 	Dbg_util_nl(lml, DBG_NL_STD);
106 	dbg_print(lml, MSG_INTL(MSG_SEG_DESC_AVAIL));
107 	for (LIST_TRAVERSE(lsg, lnp, sgp))
108 		Dbg_seg_desc_entry(lml, mach, ndx++, sgp);
109 }
110 
111 /*
112  * Print the output section information.  This includes the section header
113  * information and the output elf buffer information.  If the detail flag is
114  * set, traverse the input sections displaying all the input buffers that
115  * have been concatenated to form this output buffer.
116  */
117 void
118 Dbg_seg_os(Ofl_desc *ofl, Os_desc *osp, int ndx)
119 {
120 	Lm_list		*lml = ofl->ofl_lml;
121 	Listnode	*lnp;
122 	Is_desc		*isp;
123 	Elf_Data	*data;
124 	Shdr		*shdr;
125 
126 	if (DBG_NOTCLASS(DBG_C_SEGMENTS))
127 		return;
128 
129 	dbg_print(lml, MSG_ORIG(MSG_SEC_NAME), ndx, osp->os_name);
130 	Elf_shdr(lml, ofl->ofl_dehdr->e_machine, osp->os_shdr);
131 	dbg_print(lml, MSG_INTL(MSG_EDATA_TITLE));
132 
133 	shdr = osp->os_shdr;
134 	data = osp->os_outdata;
135 	dbg_print(lml, MSG_INTL(MSG_EDATA_ENTRY), MSG_INTL(MSG_STR_OUT),
136 	    EC_ADDR(shdr->sh_addr), conv_elfdata_type(data->d_type),
137 	    EC_XWORD(data->d_size), EC_OFF(data->d_off),
138 	    EC_XWORD(data->d_align), MSG_ORIG(MSG_STR_EMPTY),
139 	    MSG_ORIG(MSG_STR_EMPTY));
140 
141 	if (DBG_NOTDETAIL())
142 		return;
143 
144 	for (LIST_TRAVERSE(&(osp->os_isdescs), lnp, isp)) {
145 		const char	*file, *str;
146 		Addr		addr;
147 
148 		data = isp->is_indata;
149 
150 		if (isp->is_flags & FLG_IS_DISCARD) {
151 			str = MSG_INTL(MSG_EDATA_IGNSCN);
152 			addr = 0;
153 		} else {
154 			str = MSG_ORIG(MSG_STR_EMPTY);
155 			addr = (Addr)(shdr->sh_addr + data->d_off);
156 		}
157 
158 		if (isp->is_file && isp->is_file->ifl_name)
159 			file = isp->is_file->ifl_name;
160 		else
161 			file = MSG_ORIG(MSG_STR_EMPTY);
162 
163 		dbg_print(lml, MSG_INTL(MSG_EDATA_ENTRY), MSG_INTL(MSG_STR_IN),
164 		    EC_ADDR(addr), conv_elfdata_type(data->d_type),
165 		    EC_XWORD(data->d_size), EC_OFF(data->d_off),
166 		    EC_XWORD(data->d_align), file, str);
167 	}
168 }
169