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 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sgs.h>
28 #include <_debug.h>
29 #include <conv.h>
30 #include <msg.h>
31
32 void
Elf_ehdr(Lm_list * lml,Ehdr * ehdr,Shdr * shdr0)33 Elf_ehdr(Lm_list *lml, Ehdr *ehdr, Shdr *shdr0)
34 {
35 Conv_inv_buf_t inv_buf1, inv_buf2;
36 Conv_ehdr_flags_buf_t flags_buf;
37 Conv_sec_flags_buf_t sec_flags_buf;
38 Byte *byte = &(ehdr->e_ident[0]);
39 const char *flgs;
40 int xshdr = 0;
41 uchar_t osabi = ehdr->e_ident[EI_OSABI];
42 Half mach = ehdr->e_machine;
43
44 dbg_print(lml, MSG_ORIG(MSG_STR_EMPTY));
45 dbg_print(lml, MSG_INTL(MSG_ELF_HEADER));
46
47 dbg_print(lml, MSG_ORIG(MSG_ELF_MAGIC), byte[EI_MAG0],
48 (byte[EI_MAG1] ? byte[EI_MAG1] : '0'),
49 (byte[EI_MAG2] ? byte[EI_MAG2] : '0'),
50 (byte[EI_MAG3] ? byte[EI_MAG3] : '0'));
51 dbg_print(lml, MSG_ORIG(MSG_ELF_CLASS),
52 conv_ehdr_class(ehdr->e_ident[EI_CLASS], 0, &inv_buf1),
53 conv_ehdr_data(ehdr->e_ident[EI_DATA], 0, &inv_buf2));
54 dbg_print(lml, MSG_ORIG(MSG_ELF_OSABI),
55 conv_ehdr_osabi(ehdr->e_ident[EI_OSABI], 0, &inv_buf1),
56 conv_ehdr_abivers(ehdr->e_ident[EI_OSABI],
57 ehdr->e_ident[EI_ABIVERSION], CONV_FMT_DECIMAL, &inv_buf2));
58 dbg_print(lml, MSG_ORIG(MSG_ELF_MACHINE),
59 conv_ehdr_mach(mach, 0, &inv_buf1),
60 conv_ehdr_vers(ehdr->e_version, 0, &inv_buf2));
61 dbg_print(lml, MSG_ORIG(MSG_ELF_TYPE),
62 conv_ehdr_type(osabi, ehdr->e_type, 0, &inv_buf1));
63
64 /*
65 * Line up the flags differently depending on whether we received a
66 * numeric (e.g. "0x200") or text representation (e.g.
67 * "[ EF_SPARC_SUN_US1 ]").
68 */
69 flgs = conv_ehdr_flags(mach, ehdr->e_flags, 0, &flags_buf);
70 if (flgs[0] == '[')
71 dbg_print(lml, MSG_ORIG(MSG_ELF_FLAGS_FMT), flgs);
72 else
73 dbg_print(lml, MSG_ORIG(MSG_ELF_FLAGS), flgs);
74
75 /*
76 * The e_shnum, e_shstrndx and e_phnum entries may have a different
77 * meaning if extended sections exist.
78 */
79 if (ehdr->e_shstrndx == SHN_XINDEX) {
80 dbg_print(lml, MSG_ORIG(MSG_ELFX_ESIZE),
81 EC_ADDR(ehdr->e_entry), ehdr->e_ehsize);
82 xshdr++;
83 } else
84 dbg_print(lml, MSG_ORIG(MSG_ELF_ESIZE), EC_ADDR(ehdr->e_entry),
85 ehdr->e_ehsize, ehdr->e_shstrndx);
86
87 if (ehdr->e_shnum == 0) {
88 dbg_print(lml, MSG_ORIG(MSG_ELFX_SHOFF), EC_OFF(ehdr->e_shoff),
89 ehdr->e_shentsize);
90 xshdr++;
91 } else
92 dbg_print(lml, MSG_ORIG(MSG_ELF_SHOFF), EC_OFF(ehdr->e_shoff),
93 ehdr->e_shentsize, ehdr->e_shnum);
94
95 if (ehdr->e_phnum == PN_XNUM) {
96 dbg_print(lml, MSG_ORIG(MSG_ELFX_PHOFF), EC_OFF(ehdr->e_phoff),
97 ehdr->e_phentsize);
98 xshdr++;
99 } else
100 dbg_print(lml, MSG_ORIG(MSG_ELF_PHOFF), EC_OFF(ehdr->e_phoff),
101 ehdr->e_phentsize, ehdr->e_phnum);
102
103 if ((xshdr == 0) || (shdr0 == NULL))
104 return;
105
106 /*
107 * If we have Extended ELF headers - print shdr[0].
108 */
109 dbg_print(lml, MSG_ORIG(MSG_STR_EMPTY));
110 dbg_print(lml, MSG_ORIG(MSG_SHD0_TITLE));
111 dbg_print(lml, MSG_ORIG(MSG_SHD0_ADDR), EC_ADDR(shdr0->sh_addr),
112 conv_sec_flags(osabi, mach, shdr0->sh_flags, 0, &sec_flags_buf));
113 dbg_print(lml, MSG_ORIG(MSG_SHD0_SIZE), EC_XWORD(shdr0->sh_size),
114 conv_sec_type(osabi, mach, shdr0->sh_type, 0, &inv_buf1));
115 dbg_print(lml, MSG_ORIG(MSG_SHD0_OFFSET), EC_OFF(shdr0->sh_offset),
116 EC_XWORD(shdr0->sh_entsize));
117 dbg_print(lml, MSG_ORIG(MSG_SHD0_LINK), EC_WORD(shdr0->sh_link),
118 EC_WORD(shdr0->sh_info));
119 dbg_print(lml, MSG_ORIG(MSG_SHD0_ALIGN), EC_XWORD(shdr0->sh_addralign));
120 }
121