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72 lines
2.1 KiB
Plaintext
72 lines
2.1 KiB
Plaintext
# Copyright 2015-2018 Free Software Foundation, Inc.
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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, see <http://www.gnu.org/licenses/>.
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load_lib dwarf.exp
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# Test GDB does not internal error on DWARF register number -1 which is invalid
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# in DWARF. clang-3.5.0-9.fc22.x86_64 produced it inside DW_AT_location.
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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return 0
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}
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standard_testfile .S main.c
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# Make some DWARF for the test.
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set asm_file [standard_output_file $srcfile]
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Dwarf::assemble $asm_file {
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cu {} {
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compile_unit {
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{low_pc [gdb_target_symbol main] DW_FORM_addr}
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{high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
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} {
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declare_labels integer_label
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integer_label: DW_TAG_base_type {
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{DW_AT_byte_size 4 DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name integer}
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}
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DW_TAG_subprogram {
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{name main}
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{DW_AT_external 1 flag}
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{low_pc [gdb_target_symbol main] DW_FORM_addr}
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{high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
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} {
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DW_TAG_variable {
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{DW_AT_name bregx}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {
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DW_OP_bregx 0xffffffff 0
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} SPECIAL_expr}
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}
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}
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}
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile2 $asm_file] {nodebug}] } {
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return -1
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}
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runto_main
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# Variable 'bregx' needs to be inside main as for global symbols GDB does not
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# support non-trivial DW_AT_location. Former GDB printed internal error here.
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gdb_test "p bregx"
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