e493ba6255
With old "medium" code model, we call a function with a pair of PCALAU12I and JIRL instructions. The assembler produces something like: 8: 1a00000c pcalau12i $t0, 0 8: R_LARCH_PCALA_HI20 g c: 4c000181 jirl $ra, $t0, 0 c: R_LARCH_PCALA_LO12 g The linker generates a "PLT entry" for data without any diagnostic. If "g" is a data symbol and ld with -shared option, it may load two instructions in the PLT. Without -shared option, loongarch_elf_adjust_dynamic_symbol can delete PLT entry. For R_LARCH_PCALA_HI20 relocation, linker only generate PLT entry for STT_FUNC and STT_GNU_IFUNC symbols.
109 lines
2.5 KiB
Plaintext
109 lines
2.5 KiB
Plaintext
# Expect script for LoongArch ELF linker tests
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# Copyright (C) 2021-2023 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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proc loongarch_choose_lp64_emul {} {
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if { [istarget "loongarch64be-*"] } {
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return "elf64bloongarch"
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}
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return "elf64lloongarch"
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}
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if [istarget "loongarch64-*-*"] {
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run_dump_test "jmp_op"
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run_dump_test "macro_op"
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run_dump_test "syscall"
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run_dump_test "disas-jirl"
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run_dump_test "local-ifunc-reloc"
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run_dump_test "anno-sym"
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}
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if [istarget "loongarch32-*-*"] {
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run_dump_test "jmp_op"
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run_dump_test "macro_op_32"
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run_dump_test "syscall"
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run_dump_test "disas-jirl-32"
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}
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if [istarget "loongarch64-*-*"] {
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if [check_shared_lib_support] {
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run_ld_link_tests \
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[list \
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[list \
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"64_pcrel" \
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"-e 0x0 -z relro" "" \
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"" \
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{64_pcrel.s} \
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[list \
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[list objdump -D 64_pcrel.d] \
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] \
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"64_pcrel" \
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] \
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]
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}
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# loongarch*-elf target do not support -shared option
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if [check_shared_lib_support] {
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run_ld_link_tests \
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[list \
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[list \
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"data plt" \
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"-shared" "" \
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"" \
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{data-plt.s} \
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{} \
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"data-plt.so" \
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] \
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]
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if [file exist "tmpdir/data-plt.so"] {
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set objdump_output [run_host_cmd "objdump" "-d tmpdir/data-plt.so"]
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if { [ regexp "<a@plt>" $objdump_output] } {
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fail "data plt"
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} {
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pass "data plt"
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}
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}
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}
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run_ld_link_tests \
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[list \
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[list \
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"medium code model call" \
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"-e 0x0" "" \
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"" \
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{medium-call.s} \
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{} \
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"medium-call" \
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] \
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]
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}
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if [istarget "loongarch64-*-*"] {
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if [check_shared_lib_support] {
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run_dump_test "desc-ie"
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run_dump_test "desc-le"
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run_dump_test "ie-le"
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run_dump_test "tlsdesc-dso"
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run_dump_test "desc-norelax"
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run_dump_test "desc-relax"
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}
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}
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