diff options
Diffstat (limited to 'ld/emultempl')
-rw-r--r-- | ld/emultempl/loongarchelf.em | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/ld/emultempl/loongarchelf.em b/ld/emultempl/loongarchelf.em new file mode 100644 index 00000000000..b688ef7bc1d --- /dev/null +++ b/ld/emultempl/loongarchelf.em @@ -0,0 +1,87 @@ +# This shell script emits a C file. -*- C -*- +# Copyright (C) 2021 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" + +static void +larch_elf_before_allocation (void) +{ + gld${EMULATION_NAME}_before_allocation (); + + if (link_info.discard == discard_sec_merge) + link_info.discard = discard_l; + + if (!bfd_link_relocatable (&link_info)) + { + /* We always need at least some relaxation to handle code alignment. */ + if (RELAXATION_DISABLED_BY_USER) + TARGET_ENABLE_RELAXATION; + else + ENABLE_RELAXATION; + } + + link_info.relax_pass = 3; +} + +static void +gld${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; + } + } + + /* 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 |