| 1 | /* Copyright (C) 1999-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | |
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| 19 | int process_elf32_file (const char *file_name, const char *lib, |
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| 20 | int *flag, unsigned int *osversion, |
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| 21 | unsigned int *isa_level, char **soname, |
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| 22 | void *file_contents, size_t file_length); |
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| 23 | int process_elf64_file (const char *file_name, const char *lib, |
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| 24 | int *flag, unsigned int *osversion, |
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| 25 | unsigned int *isa_level, char **soname, |
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| 26 | void *file_contents, size_t file_length); |
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| 27 | |
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| 28 | /* Returns 0 if everything is ok, != 0 in case of error. */ |
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| 29 | int |
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| 30 | process_elf_file (const char *file_name, const char *lib, int *flag, |
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| 31 | unsigned int *osversion, unsigned int *isa_level, |
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| 32 | char **soname, void *file_contents, size_t file_length) |
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| 33 | { |
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| 34 | ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents; |
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| 35 | int ret; |
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| 36 | |
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| 37 | if (elf_header->e_ident [EI_CLASS] == ELFCLASS32) |
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| 38 | { |
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| 39 | Elf32_Ehdr *elf32_header = (Elf32_Ehdr *) elf_header; |
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| 40 | |
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| 41 | ret = process_elf32_file (file_name, lib, flag, osversion, isa_level, |
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| 42 | soname, file_contents, file_length); |
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| 43 | |
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| 44 | if (!ret && EF_ARM_EABI_VERSION (elf32_header->e_flags) == EF_ARM_EABI_VER5) |
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| 45 | { |
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| 46 | if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_HARD) |
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| 47 | *flag = FLAG_ARM_LIBHF|FLAG_ELF_LIBC6; |
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| 48 | else if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_SOFT) |
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| 49 | *flag = FLAG_ARM_LIBSF|FLAG_ELF_LIBC6; |
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| 50 | else |
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| 51 | /* We must assume the unmarked objects are compatible |
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| 52 | with all ABI variants. Such objects may have been |
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| 53 | generated in a transitional period when the ABI |
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| 54 | tags were not added to all objects. */ |
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| 55 | *flag = FLAG_ELF_LIBC6; |
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| 56 | } |
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| 57 | } |
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| 58 | else |
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| 59 | { |
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| 60 | ret = process_elf64_file (file_name, lib, flag, osversion, isa_level, |
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| 61 | soname, file_contents, file_length); |
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| 62 | /* AArch64 libraries are always libc.so.6+. */ |
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| 63 | if (!ret) |
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| 64 | *flag = FLAG_AARCH64_LIB64|FLAG_ELF_LIBC6; |
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| 65 | } |
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| 66 | return ret; |
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| 67 | } |
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| 68 | |
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| 69 | #undef __ELF_NATIVE_CLASS |
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| 70 | #undef process_elf_file |
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| 71 | #define process_elf_file process_elf32_file |
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| 72 | #define __ELF_NATIVE_CLASS 32 |
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| 73 | #include "elf/readelflib.c" |
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| 74 | |
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| 75 | #undef __ELF_NATIVE_CLASS |
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| 76 | #undef process_elf_file |
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| 77 | #define process_elf_file process_elf64_file |
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| 78 | #define __ELF_NATIVE_CLASS 64 |
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| 79 | #include "elf/readelflib.c" |
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| 80 | |
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