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# This shell script emits a C file. -*- C -*-
# Copyright (C) 2021-2024 Free Software Foundation, Inc.
# Contributed by Loongson Ltd.
#
# This file is part of the GNU Binutils.
#
# 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; see the file COPYING3. If not,
# see <http://www.gnu.org/licenses/>.
fragment <<EOF
#include "ldmain.h"
#include "ldctor.h"
#include "elf/loongarch.h"
#include "elfxx-loongarch.h"
static void
larch_elf_before_allocation (void)
{
gld${EMULATION_NAME}_before_allocation ();
if (link_info.discard == discard_sec_merge)
link_info.discard = discard_l;
if (!bfd_link_relocatable (&link_info))
{
/* We always need at least some relaxation to handle code alignment. */
if (RELAXATION_DISABLED_BY_USER)
TARGET_ENABLE_RELAXATION;
else
ENABLE_RELAXATION;
}
link_info.relax_pass = 2;
}
static void
gld${EMULATION_NAME}_after_allocation (void)
{
int need_layout = 0;
/* Don't attempt to discard unused .eh_frame sections until the final link,
as we can't reliably tell if they're used until after relaxation. */
if (!bfd_link_relocatable (&link_info))
{
need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
if (need_layout < 0)
{
einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
return;
}
}
/* The program header size of executable file may increase. */
if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
&& !bfd_link_relocatable (&link_info))
{
if (lang_phdr_list == NULL)
elf_seg_map (link_info.output_bfd) = NULL;
if (!_bfd_elf_map_sections_to_segments (link_info.output_bfd,
&link_info,
NULL))
einfo (_("%F%P: map sections to segments failed: %E\n"));
}
/* Adjust program header size and .eh_frame_hdr size before
lang_relax_sections. Without it, the vma of data segment may increase. */
lang_do_assignments (lang_allocating_phase_enum);
lang_reset_memory_regions ();
lang_size_sections (NULL, true);
enum phase_enum *phase = &(expld.dataseg.phase);
bfd_elf${ELFSIZE}_loongarch_set_data_segment_info (&link_info, (int *) phase);
/* gld${EMULATION_NAME}_map_segments (need_layout); */
ldelf_map_segments (need_layout);
}
/* This is a convenient point to tell BFD about target specific flags.
After the output has been created, but before inputs are read. */
static void
larch_create_output_section_statements (void)
{
/* See PR 22920 for an example of why this is necessary. */
if (strstr (bfd_get_target (link_info.output_bfd), "loong") == NULL)
{
einfo (_("%F%P: error: cannot change output format"
" whilst linking %s binaries\n"), "LoongArch");
return;
}
}
EOF
LDEMUL_BEFORE_ALLOCATION=larch_elf_before_allocation
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=larch_create_output_section_statements
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