1 /* Copyright (C) 1999-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18
19 int process_elf32_file (const char *file_name, const char *lib,
20 int *flag, unsigned int *isa_level, char **soname,
21 void *file_contents, size_t file_length);
22 int process_elf64_file (const char *file_name, const char *lib,
23 int *flag, unsigned int *isa_level, char **soname,
24 void *file_contents, size_t file_length);
25
26 /* Returns 0 if everything is ok, != 0 in case of error. */
27 int
process_elf_file(const char * file_name,const char * lib,int * flag,unsigned int * isa_level,char ** soname,void * file_contents,size_t file_length)28 process_elf_file (const char *file_name, const char *lib, int *flag,
29 unsigned int *isa_level, char **soname, void *file_contents,
30 size_t file_length)
31 {
32 ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
33 int ret;
34
35 if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
36 {
37 Elf32_Ehdr *elf32_header = (Elf32_Ehdr *) elf_header;
38
39 ret = process_elf32_file (file_name, lib, flag, isa_level, soname,
40 file_contents, file_length);
41
42 if (!ret && EF_ARM_EABI_VERSION (elf32_header->e_flags) == EF_ARM_EABI_VER5)
43 {
44 if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_HARD)
45 *flag = FLAG_ARM_LIBHF|FLAG_ELF_LIBC6;
46 else if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_SOFT)
47 *flag = FLAG_ARM_LIBSF|FLAG_ELF_LIBC6;
48 else
49 /* We must assume the unmarked objects are compatible
50 with all ABI variants. Such objects may have been
51 generated in a transitional period when the ABI
52 tags were not added to all objects. */
53 *flag = FLAG_ELF_LIBC6;
54 }
55 }
56 else
57 {
58 ret = process_elf64_file (file_name, lib, flag, isa_level, soname,
59 file_contents, file_length);
60 /* AArch64 libraries are always libc.so.6+. */
61 if (!ret)
62 *flag = FLAG_AARCH64_LIB64|FLAG_ELF_LIBC6;
63 }
64 return ret;
65 }
66
67 #undef __ELF_NATIVE_CLASS
68 #undef process_elf_file
69 #define process_elf_file process_elf32_file
70 #define __ELF_NATIVE_CLASS 32
71 #include "elf/readelflib.c"
72
73 #undef __ELF_NATIVE_CLASS
74 #undef process_elf_file
75 #define process_elf_file process_elf64_file
76 #define __ELF_NATIVE_CLASS 64
77 #include "elf/readelflib.c"
78