1 | /* Copyright (C) 1999-2018 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Andreas Jaeger <aj@suse.de>, 1999 and |
4 | Jakub Jelinek <jakub@redhat.com>, 2000. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | |
21 | int process_elf32_file (const char *file_name, const char *lib, int *flag, |
22 | unsigned int *osversion, char **soname, |
23 | void *file_contents, size_t file_length); |
24 | int process_elf64_file (const char *file_name, const char *lib, int *flag, |
25 | unsigned int *osversion, char **soname, |
26 | void *file_contents, size_t file_length); |
27 | |
28 | /* Returns 0 if everything is ok, != 0 in case of error. */ |
29 | int |
30 | process_elf_file (const char *file_name, const char *lib, int *flag, |
31 | unsigned int *osversion, char **soname, void *file_contents, |
32 | size_t file_length) |
33 | { |
34 | ElfW(Ehdr) * = (ElfW(Ehdr) *) file_contents; |
35 | int ret, file_flag = 0; |
36 | |
37 | switch (elf_header->e_machine) |
38 | { |
39 | case EM_X86_64: |
40 | if (elf_header->e_ident[EI_CLASS] == ELFCLASS64) |
41 | /* X86-64 64bit libraries are always libc.so.6+. */ |
42 | file_flag = FLAG_X8664_LIB64|FLAG_ELF_LIBC6; |
43 | else |
44 | /* X32 libraries are always libc.so.6+. */ |
45 | file_flag = FLAG_X8664_LIBX32|FLAG_ELF_LIBC6; |
46 | break; |
47 | #ifndef SKIP_EM_IA_64 |
48 | case EM_IA_64: |
49 | if (elf_header->e_ident[EI_CLASS] == ELFCLASS64) |
50 | { |
51 | /* IA64 64bit libraries are always libc.so.6+. */ |
52 | file_flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6; |
53 | break; |
54 | } |
55 | goto failed; |
56 | #endif |
57 | case EM_386: |
58 | if (elf_header->e_ident[EI_CLASS] == ELFCLASS32) |
59 | break; |
60 | /* Fall through. */ |
61 | default: |
62 | #ifndef SKIP_EM_IA_64 |
63 | failed: |
64 | #endif |
65 | error (0, 0, _("%s is for unknown machine %d.\n" ), |
66 | file_name, elf_header->e_machine); |
67 | return 1; |
68 | } |
69 | |
70 | if (elf_header->e_ident[EI_CLASS] == ELFCLASS32) |
71 | ret = process_elf32_file (file_name, lib, flag, osversion, soname, |
72 | file_contents, file_length); |
73 | else |
74 | ret = process_elf64_file (file_name, lib, flag, osversion, soname, |
75 | file_contents, file_length); |
76 | |
77 | if (!ret && file_flag) |
78 | *flag = file_flag; |
79 | |
80 | return ret; |
81 | } |
82 | |
83 | #undef __ELF_NATIVE_CLASS |
84 | #undef process_elf_file |
85 | #define process_elf_file process_elf32_file |
86 | #define __ELF_NATIVE_CLASS 32 |
87 | #include "elf/readelflib.c" |
88 | |
89 | #undef __ELF_NATIVE_CLASS |
90 | #undef process_elf_file |
91 | #define process_elf_file process_elf64_file |
92 | #define __ELF_NATIVE_CLASS 64 |
93 | #include "elf/readelflib.c" |
94 | |