binutils-gdb/bfd/elf-linker-x86.h
Martin Liska 8ad93045ed ld, gold: remove support for -z bndplt (MPX prefix)
bfd/ChangeLog:

	* elf-linker-x86.h (struct elf_linker_x86_params): Remove
	bndplt.
	* elf64-x86-64.c (elf_x86_64_scan_relocs): Ignore
        R_X86_64_PLT32_BND.
	(elf_x86_64_relocate_section): Similarly here.
	(elf_x86_64_link_setup_gnu_properties): Ignore bndplt.
	* elfxx-x86.c: Likewise.
	* elfxx-x86.h: Likewise.

gold/ChangeLog:

	* NEWS: Document -z bndplt.
	* options.h (class General_options): Remove bndplt option.
	* x86_64.cc (class Output_data_plt_x86_64_bnd): Remove.
	(Target_x86_64::do_make_data_plt): Do not use
	Output_data_plt_x86_64_bnd.
	(Target_x86_64::Scan::get_reference_flags): Likewise.
	(Target_x86_64::Scan::check_non_pic): Likewise.
	(Target_x86_64::Scan::local): Likewise.
	(Target_x86_64::Scan::global): Likewise.

ld/ChangeLog:

	* NEWS: Document -z bndplt.
	* emulparams/elf_x86_64.sh: Remove bndplt option.
	* ld.texi: Likewise.
	* testsuite/ld-x86-64/x86-64.exp:
	* testsuite/ld-x86-64/bnd-branch-1-now.d: Removed.
	* testsuite/ld-x86-64/bnd-branch-1.d: Removed.
	* testsuite/ld-x86-64/bnd-branch-1.s: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-1-now.d: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-1.d: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-1.s: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-2-now.d: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-2.d: Removed.
	* testsuite/ld-x86-64/bnd-ifunc-2.s: Removed.
	* testsuite/ld-x86-64/bnd-plt-1-now.d: Removed.
	* testsuite/ld-x86-64/bnd-plt-1.d: Removed.
	* testsuite/ld-x86-64/mpx.exp: Removed.
	* testsuite/ld-x86-64/mpx1.out: Removed.
	* testsuite/ld-x86-64/mpx1a.c: Removed.
	* testsuite/ld-x86-64/mpx1a.rd: Removed.
	* testsuite/ld-x86-64/mpx1b.c: Removed.
	* testsuite/ld-x86-64/mpx1c.c: Removed.
	* testsuite/ld-x86-64/mpx1c.rd: Removed.
	* testsuite/ld-x86-64/mpx2.out: Removed.
	* testsuite/ld-x86-64/mpx2a.c: Removed.
	* testsuite/ld-x86-64/mpx2a.rd: Removed.
	* testsuite/ld-x86-64/mpx2b.c: Removed.
	* testsuite/ld-x86-64/mpx2c.c: Removed.
	* testsuite/ld-x86-64/mpx2c.rd: Removed.
	* testsuite/ld-x86-64/mpx3.dd: Removed.
	* testsuite/ld-x86-64/mpx3a.s: Removed.
	* testsuite/ld-x86-64/mpx3b.s: Removed.
	* testsuite/ld-x86-64/mpx3n.dd: Removed.
	* testsuite/ld-x86-64/mpx4.dd: Removed.
	* testsuite/ld-x86-64/mpx4a.s: Removed.
	* testsuite/ld-x86-64/mpx4b.s: Removed.
	* testsuite/ld-x86-64/mpx4n.dd: Removed.
	* testsuite/ld-x86-64/pr20800a.S: Removed.
	* testsuite/ld-x86-64/pr20800b.S: Removed.
	* testsuite/ld-x86-64/pr21038a-now.d: Removed.
	* testsuite/ld-x86-64/pr21038a.d: Removed.
	* testsuite/ld-x86-64/pr21038a.s: Removed.
	* testsuite/ld-x86-64/pr21038b-now.d: Removed.
	* testsuite/ld-x86-64/pr21038b.d: Removed.
	* testsuite/ld-x86-64/pr21038b.s: Removed.
	* testsuite/ld-x86-64/pr21038c-now.d: Removed.
	* testsuite/ld-x86-64/pr21038c.d: Removed.
	* testsuite/ld-x86-64/pr21038c.s: Removed.
2022-12-14 08:48:13 +01:00

82 lines
2.8 KiB
C

/* 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 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 *);