projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b9c07b2 L |
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 | ||
| 233a0083 L |
21 | /* Missing IBT and SHSTK property report control. */ |
| 22 | enum elf_x86_cet_report | |
| 23 | { | |
| 24 | cet_report_none = 0, /* Do nothing. */ | |
| 25 | cet_report_warning = 1 << 0, /* Issue a warning. */ | |
| 26 | cet_report_error = 1 << 1, /* Issue an error. */ | |
| 27 | cet_report_ibt = 1 << 2, /* Report missing IBT property. */ | |
| 28 | cet_report_shstk = 1 << 3 /* Report missing SHSTK property. */ | |
| 29 | }; | |
| 30 | ||
| 5b9c07b2 L |
31 | /* Used to pass x86-specific linker options from ld to bfd. */ |
| 32 | struct elf_linker_x86_params | |
| 33 | { | |
| 34 | /* TRUE if BND prefix in PLT entries is always generated. */ | |
| 35 | unsigned int bndplt: 1; | |
| 36 | ||
| 37 | /* TRUE if IBT-enabled PLT entries should be generated. */ | |
| 38 | unsigned int ibtplt: 1; | |
| 39 | ||
| 40 | /* TRUE if GNU_PROPERTY_X86_FEATURE_1_IBT should be generated. */ | |
| 41 | unsigned int ibt: 1; | |
| 42 | ||
| 43 | /* TRUE if GNU_PROPERTY_X86_FEATURE_1_SHSTK should be generated. */ | |
| 44 | unsigned int shstk: 1; | |
| 45 | ||
| 46 | /* TRUE if we shouldn't check relocation overflow. */ | |
| 47 | unsigned int no_reloc_overflow_check: 1; | |
| 48 | ||
| 49 | /* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */ | |
| 50 | unsigned int call_nop_as_suffix : 1; | |
| 51 | ||
| 233a0083 L |
52 | /* Report missing IBT and SHSTK properties. */ |
| 53 | enum elf_x86_cet_report cet_report; | |
| 54 | ||
| 5b9c07b2 L |
55 | /* The 1-byte NOP for x86 call instruction. */ |
| 56 | char call_nop_byte; | |
| 57 | }; | |
| 58 | ||
| 59 | extern void _bfd_elf_linker_x86_set_options | |
| 60 | (struct bfd_link_info *, struct elf_linker_x86_params *); |