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1 | /* x86-specific ELF linker support between ld and bfd. |
2 | Copyright (C) 2019 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program 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 | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | /* Used to pass x86-specific linker options from ld to bfd. */ | |
22 | struct elf_linker_x86_params | |
23 | { | |
24 | /* TRUE if BND prefix in PLT entries is always generated. */ | |
25 | unsigned int bndplt: 1; | |
26 | ||
27 | /* TRUE if IBT-enabled PLT entries should be generated. */ | |
28 | unsigned int ibtplt: 1; | |
29 | ||
30 | /* TRUE if GNU_PROPERTY_X86_FEATURE_1_IBT should be generated. */ | |
31 | unsigned int ibt: 1; | |
32 | ||
33 | /* TRUE if GNU_PROPERTY_X86_FEATURE_1_SHSTK should be generated. */ | |
34 | unsigned int shstk: 1; | |
35 | ||
36 | /* TRUE if we shouldn't check relocation overflow. */ | |
37 | unsigned int no_reloc_overflow_check: 1; | |
38 | ||
39 | /* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */ | |
40 | unsigned int call_nop_as_suffix : 1; | |
41 | ||
42 | /* The 1-byte NOP for x86 call instruction. */ | |
43 | char call_nop_byte; | |
44 | }; | |
45 | ||
46 | extern void _bfd_elf_linker_x86_set_options | |
47 | (struct bfd_link_info *, struct elf_linker_x86_params *); |