vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
125 lines
3.8 KiB
Plaintext
125 lines
3.8 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# Copyright (C) 2021-2024 Free Software Foundation, Inc.
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# Contributed by Loongson Ltd.
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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; see the file COPYING3. If not,
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# see <http://www.gnu.org/licenses/>.
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fragment <<EOF
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#include "ldmain.h"
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#include "ldctor.h"
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#include "elf/loongarch.h"
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#include "elfxx-loongarch.h"
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EOF
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# Disable linker relaxation if set address of section or segment.
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PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
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case OPTION_SECTION_START:
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case OPTION_TTEXT:
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case OPTION_TBSS:
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case OPTION_TDATA:
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case OPTION_TTEXT_SEGMENT:
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case OPTION_TRODATA_SEGMENT:
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case OPTION_TLDATA_SEGMENT:
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link_info.disable_target_specific_optimizations = 2;
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return false;
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'
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fragment <<EOF
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static void
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larch_elf_before_allocation (void)
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{
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gld${EMULATION_NAME}_before_allocation ();
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if (link_info.discard == discard_sec_merge)
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link_info.discard = discard_l;
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if (!bfd_link_relocatable (&link_info))
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{
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/* We always need at least some relaxation to handle code alignment. */
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if (RELAXATION_DISABLED_BY_USER)
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TARGET_ENABLE_RELAXATION;
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else
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ENABLE_RELAXATION;
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}
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link_info.relax_pass = 2;
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}
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static void
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gld${EMULATION_NAME}_after_allocation (void)
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{
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int need_layout = 0;
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/* Don't attempt to discard unused .eh_frame sections until the final link,
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as we can't reliably tell if they're used until after relaxation. */
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if (!bfd_link_relocatable (&link_info))
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{
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need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
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if (need_layout < 0)
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{
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einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
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return;
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}
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}
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/* The program header size of executable file may increase. */
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if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
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&& !bfd_link_relocatable (&link_info))
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{
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if (lang_phdr_list == NULL)
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elf_seg_map (link_info.output_bfd) = NULL;
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if (!_bfd_elf_map_sections_to_segments (link_info.output_bfd,
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&link_info,
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NULL))
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einfo (_("%F%P: map sections to segments failed: %E\n"));
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}
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/* Adjust program header size and .eh_frame_hdr size before
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lang_relax_sections. Without it, the vma of data segment may increase. */
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lang_do_assignments (lang_allocating_phase_enum);
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lang_reset_memory_regions ();
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lang_size_sections (NULL, true);
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enum phase_enum *phase = &(expld.dataseg.phase);
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bfd_elf${ELFSIZE}_loongarch_set_data_segment_info (&link_info, (int *) phase);
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/* gld${EMULATION_NAME}_map_segments (need_layout); */
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ldelf_map_segments (need_layout);
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}
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/* This is a convenient point to tell BFD about target specific flags.
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After the output has been created, but before inputs are read. */
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static void
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larch_create_output_section_statements (void)
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{
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/* See PR 22920 for an example of why this is necessary. */
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if (strstr (bfd_get_target (link_info.output_bfd), "loong") == NULL)
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{
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einfo (_("%F%P: error: cannot change output format"
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" whilst linking %s binaries\n"), "LoongArch");
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return;
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}
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}
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EOF
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LDEMUL_BEFORE_ALLOCATION=larch_elf_before_allocation
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LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
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LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=larch_create_output_section_statements
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