123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- /* x86-specific ELF linker support between ld and bfd.
- Copyright (C) 2019-2022 Free Software Foundation, Inc.
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program 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 General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- /* Missing IBT, SHSTK and LAM property report control. */
- enum elf_x86_prop_report
- {
- prop_report_none = 0, /* Do nothing. */
- prop_report_warning = 1 << 0, /* Issue a warning. */
- prop_report_error = 1 << 1, /* Issue an error. */
- prop_report_ibt = 1 << 2, /* Report missing IBT property. */
- prop_report_shstk = 1 << 3 /* Report missing SHSTK property. */
- };
- /* Used to pass x86-specific linker options from ld to bfd. */
- struct elf_linker_x86_params
- {
- /* TRUE if BND prefix in PLT entries is always generated. */
- unsigned int bndplt: 1;
- /* TRUE if IBT-enabled PLT entries should be generated. */
- unsigned int ibtplt: 1;
- /* TRUE if GNU_PROPERTY_X86_FEATURE_1_IBT should be generated. */
- unsigned int ibt: 1;
- /* TRUE if GNU_PROPERTY_X86_FEATURE_1_SHSTK should be generated. */
- unsigned int shstk: 1;
- /* TRUE if GNU_PROPERTY_X86_FEATURE_1_LAM_U48 should be generated. */
- unsigned int lam_u48: 1;
- /* TRUE if GNU_PROPERTY_X86_FEATURE_1_LAM_U57 should be generated. */
- unsigned int lam_u57: 1;
- /* TRUE if we shouldn't check relocation overflow. */
- unsigned int no_reloc_overflow_check: 1;
- /* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */
- unsigned int call_nop_as_suffix : 1;
- /* TRUE if -static is passed at command-line before all input files. */
- unsigned int static_before_all_inputs : 1;
- /* TRUE if --dynamic-linker is passed at command-line. */
- unsigned int has_dynamic_linker : 1;
- /* Report relative relocations. */
- unsigned int report_relative_reloc : 1;
- /* X86-64 ISA level needed. */
- unsigned int isa_level;
- /* Report missing IBT and SHSTK properties. */
- enum elf_x86_prop_report cet_report;
- /* Report missing LAM_U48 property. */
- enum elf_x86_prop_report lam_u48_report;
- /* Report missing LAM_U57 property. */
- enum elf_x86_prop_report lam_u57_report;
- /* The 1-byte NOP for x86 call instruction. */
- char call_nop_byte;
- };
- extern void _bfd_elf_linker_x86_set_options
- (struct bfd_link_info *, struct elf_linker_x86_params *);
|