diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86/readelflib.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/readelflib.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/readelflib.c b/sysdeps/unix/sysv/linux/x86/readelflib.c new file mode 100644 index 0000000..3e83419 --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/readelflib.c @@ -0,0 +1,93 @@ +/* Copyright (C) 1999-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Jaeger <aj@suse.de>, 1999 and + Jakub Jelinek <jakub@redhat.com>, 2000. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + + +int process_elf32_file (const char *file_name, const char *lib, int *flag, + unsigned int *osversion, char **soname, + void *file_contents, size_t file_length); +int process_elf64_file (const char *file_name, const char *lib, int *flag, + unsigned int *osversion, char **soname, + void *file_contents, size_t file_length); + +/* Returns 0 if everything is ok, != 0 in case of error. */ +int +process_elf_file (const char *file_name, const char *lib, int *flag, + unsigned int *osversion, char **soname, void *file_contents, + size_t file_length) +{ + ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents; + int ret, file_flag = 0; + + switch (elf_header->e_machine) + { + case EM_X86_64: + if (elf_header->e_ident[EI_CLASS] == ELFCLASS64) + /* X86-64 64bit libraries are always libc.so.6+. */ + file_flag = FLAG_X8664_LIB64|FLAG_ELF_LIBC6; + else + /* X32 libraries are always libc.so.6+. */ + file_flag = FLAG_X8664_LIBX32|FLAG_ELF_LIBC6; + break; +#ifndef __x86_64__ + case EM_IA_64: + if (elf_header->e_ident[EI_CLASS] == ELFCLASS64) + { + /* IA64 64bit libraries are always libc.so.6+. */ + file_flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6; + break; + } + goto failed; +#endif + case EM_386: + if (elf_header->e_ident[EI_CLASS] == ELFCLASS32) + break; + /* Fall through. */ + default: +#ifndef __x86_64__ +failed: +#endif + error (0, 0, _("%s is for unknown machine %d.\n"), + file_name, elf_header->e_machine); + return 1; + } + + if (elf_header->e_ident[EI_CLASS] == ELFCLASS32) + ret = process_elf32_file (file_name, lib, flag, osversion, soname, + file_contents, file_length); + else + ret = process_elf64_file (file_name, lib, flag, osversion, soname, + file_contents, file_length); + + if (!ret && file_flag) + *flag = file_flag; + + return ret; +} + +#undef __ELF_NATIVE_CLASS +#undef process_elf_file +#define process_elf_file process_elf32_file +#define __ELF_NATIVE_CLASS 32 +#include "elf/readelflib.c" + +#undef __ELF_NATIVE_CLASS +#undef process_elf_file +#define process_elf_file process_elf64_file +#define __ELF_NATIVE_CLASS 64 +#include "elf/readelflib.c" |