mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
a2c5833233
The result of running etc/update-copyright.py --this-year, fixing all the files whose mode is changed by the script, plus a build with --enable-maintainer-mode --enable-cgen-maint=yes, then checking out */po/*.pot which we don't update frequently. The copy of cgen was with commit d1dd5fcc38ead reverted as that commit breaks building of bfp opcodes files.
154 lines
4.0 KiB
Plaintext
154 lines
4.0 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# Copyright (C) 2003-2022 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# This file is sourced from elf.em, and defines extra alpha
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# specific routines.
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#
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fragment <<EOF
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#include "elf/internal.h"
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#include "elf/alpha.h"
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#include "elf-bfd.h"
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static bool limit_32bit;
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extern bool elf64_alpha_use_secureplt;
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/* Set the start address as in the Tru64 ld. */
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#define ALPHA_TEXT_START_32BIT 0x12000000
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static void
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alpha_after_open (void)
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{
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if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
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&& elf_object_id (link_info.output_bfd) == ALPHA_ELF_DATA)
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{
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unsigned int num_plt;
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lang_output_section_statement_type *os;
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lang_output_section_statement_type *plt_os[2];
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num_plt = 0;
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for (os = (void *) lang_os_list.head;
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os != NULL;
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os = os->next)
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{
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if (os->constraint == SPECIAL && strcmp (os->name, ".plt") == 0)
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{
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if (num_plt < 2)
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plt_os[num_plt] = os;
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++num_plt;
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}
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}
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if (num_plt == 2)
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{
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plt_os[0]->constraint = elf64_alpha_use_secureplt ? 0 : -1;
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plt_os[1]->constraint = elf64_alpha_use_secureplt ? -1 : 0;
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}
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}
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gld${EMULATION_NAME}_after_open ();
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}
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static void
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alpha_after_parse (void)
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{
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link_info.relax_pass = 2;
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if (limit_32bit
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&& !bfd_link_pic (&link_info)
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&& !bfd_link_relocatable (&link_info))
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lang_section_start (".interp",
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exp_binop ('+',
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exp_intop (ALPHA_TEXT_START_32BIT),
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exp_nameop (SIZEOF_HEADERS, NULL)),
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NULL);
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ldelf_after_parse ();
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}
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static void
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alpha_before_allocation (void)
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{
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/* Call main function; we're just extending it. */
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gld${EMULATION_NAME}_before_allocation ();
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/* Add -relax if -O, not -r, and not explicitly disabled. */
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if (link_info.optimize
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&& !bfd_link_relocatable (&link_info)
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&& ! RELAXATION_DISABLED_BY_USER)
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ENABLE_RELAXATION;
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}
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static void
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alpha_finish (void)
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{
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if (limit_32bit)
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elf_elfheader (link_info.output_bfd)->e_flags |= EF_ALPHA_32BIT;
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finish_default ();
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}
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EOF
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# Define some shell vars to insert bits of code into the standard elf
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# parse_args and list_options functions.
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#
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PARSE_AND_LIST_PROLOGUE='
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#define OPTION_TASO 300
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#define OPTION_SECUREPLT (OPTION_TASO + 1)
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#define OPTION_NO_SECUREPLT (OPTION_SECUREPLT + 1)
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'
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PARSE_AND_LIST_LONGOPTS='
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{ "taso", no_argument, NULL, OPTION_TASO },
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{ "secureplt", no_argument, NULL, OPTION_SECUREPLT },
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{ "no-secureplt", no_argument, NULL, OPTION_NO_SECUREPLT },
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'
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PARSE_AND_LIST_OPTIONS='
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fprintf (file, _("\
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--taso Load executable in the lower 31-bit addressable\n\
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virtual address range\n"));
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fprintf (file, _("\
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--secureplt Force PLT in text segment\n"));
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fprintf (file, _("\
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--no-secureplt Force PLT in data segment\n"));
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'
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PARSE_AND_LIST_ARGS_CASES='
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case OPTION_TASO:
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limit_32bit = 1;
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break;
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case OPTION_SECUREPLT:
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elf64_alpha_use_secureplt = true;
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break;
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case OPTION_NO_SECUREPLT:
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elf64_alpha_use_secureplt = false;
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break;
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'
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# Put these extra alpha routines in ld_${EMULATION_NAME}_emulation
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#
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LDEMUL_AFTER_OPEN=alpha_after_open
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LDEMUL_AFTER_PARSE=alpha_after_parse
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LDEMUL_BEFORE_ALLOCATION=alpha_before_allocation
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LDEMUL_FINISH=alpha_finish
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