mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +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.
126 lines
4.5 KiB
Plaintext
126 lines
4.5 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# Copyright (C) 2001-2022 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 mmo.em, used to define
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# MMIX-specific things common to ELF and MMO.
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fragment <<EOF
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#include "elf/mmix.h"
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static void gld${EMULATION_NAME}_before_parse (void);
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static void
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mmix_before_parse (void)
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{
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link_info.check_relocs_after_open_input = true;
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gld${EMULATION_NAME}_before_parse ();
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}
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/* Set up handling of linker-allocated global registers. */
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static void
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mmix_before_allocation (void)
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{
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/* Call the default first. */
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gld${EMULATION_NAME}_before_allocation ();
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/* There's a needrelax.em which uses this ..._before_allocation-hook and
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just has the statement below as payload. It's more of a hassle to
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use that than to just include these two lines and take the
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maintenance burden to keep them in sync. (Of course we lose the
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maintenance burden of checking that it still does what we need.) */
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/* Force -relax on (regardless of whether we're doing a relocatable
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link). */
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ENABLE_RELAXATION;
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if (!_bfd_mmix_before_linker_allocation (link_info.output_bfd, &link_info))
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einfo (_("%X%P: internal problems setting up section %s"),
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MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME);
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}
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/* We need to set the VMA of the .MMIX.reg_contents section when it has
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been allocated, and produce the final settings for the linker-generated
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GREGs. */
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static void
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mmix_after_allocation (void)
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{
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asection *sec;
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bfd_signed_vma regvma;
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gld${EMULATION_NAME}_after_allocation ();
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/* If there's no register section, we don't need to do anything. On the
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other hand, if there's a non-standard linker-script without a mapping
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from MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME when that section is
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present (as in the ld test "NOCROSSREFS 2"), that section (1) will be
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orphaned; not inserted in MMIX_REG_CONTENTS_SECTION_NAME and (2) we
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will not do the necessary preparations for those relocations that
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caused it to be created. We'll SEGV from the latter error. The
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former error in separation will result in a non-working binary, but
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that's expected when you play tricks with linker scripts. The
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"NOCROSSREFS 2" test does not run the output so it does not matter
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there. */
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sec = bfd_get_section_by_name (link_info.output_bfd,
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MMIX_REG_CONTENTS_SECTION_NAME);
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if (sec == NULL)
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sec
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= bfd_get_section_by_name (link_info.output_bfd,
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MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME);
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if (sec == NULL)
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return;
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regvma = 256 * 8 - sec->size - 8;
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/* If we start on a local register, we have too many global registers.
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We treat this error as nonfatal (meaning processing will continue in
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search for other errors), because it's a link error in the same way
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as an undefined symbol. */
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if (regvma < 32 * 8)
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{
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einfo (_("%X%P: too many global registers: %u, max 223\n"),
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(unsigned) sec->size / 8);
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regvma = 32 * 8;
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}
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/* Set vma to correspond to first such register number * 8. */
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bfd_set_section_vma (sec, (bfd_vma) regvma);
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/* Simplify symbol output for the register section (without contents;
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created for register symbols) by setting the output offset to 0.
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This section is only present when there are register symbols. */
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sec = bfd_get_section_by_name (link_info.output_bfd, MMIX_REG_SECTION_NAME);
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if (sec != NULL)
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bfd_set_section_vma (sec, 0);
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if (!_bfd_mmix_after_linker_allocation (link_info.output_bfd, &link_info))
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{
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/* This is a fatal error; make einfo call not return. */
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einfo (_("%F%P: can't finalize linker-allocated global registers\n"));
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}
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}
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EOF
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LDEMUL_BEFORE_PARSE=mmix_before_parse
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LDEMUL_AFTER_ALLOCATION=mmix_after_allocation
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LDEMUL_BEFORE_ALLOCATION=mmix_before_allocation
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