| # Copyright 2021 Free Software Foundation, Inc. |
| |
| # 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. If not, see <http://www.gnu.org/licenses/>. |
| |
| # Test DW_AT_location attribute referencing the .debug_loc section using |
| # the DW_FORM_sec_offset form. |
| |
| load_lib dwarf.exp |
| |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| # Test with 32-bit and 64-bit DWARF. |
| foreach_with_prefix is_64 {false true} { |
| if { $is_64 } { |
| standard_testfile .c -dw64.S |
| set testfile ${testfile}-dw64 |
| } else { |
| standard_testfile .c -dw32.S |
| set testfile ${testfile}-dw32 |
| } |
| |
| lassign [function_range func1 $srcdir/$subdir/$srcfile] \ |
| func1_addr func1_len |
| lassign [function_range func2 $srcdir/$subdir/$srcfile] \ |
| func2_addr func2_len |
| |
| set asm_file [standard_output_file $srcfile2] |
| Dwarf::assemble $asm_file { |
| global func1_addr func1_len |
| global func2_addr func2_len |
| global is_64 |
| |
| set cu_version 4 |
| |
| cu { |
| version $cu_version |
| is_64 $is_64 |
| } { |
| declare_labels int_type1 |
| declare_labels foo_location_list |
| |
| DW_TAG_compile_unit { |
| } { |
| int_type1: DW_TAG_base_type { |
| {DW_AT_byte_size 4 DW_FORM_data1} |
| {DW_AT_encoding @DW_ATE_signed} |
| {DW_AT_name "int"} |
| } |
| |
| DW_TAG_variable { |
| {DW_AT_name "foo"} |
| {DW_AT_location $foo_location_list DW_FORM_sec_offset} |
| {DW_AT_type :$int_type1} |
| } |
| |
| DW_TAG_subprogram { |
| {DW_AT_name "func1"} |
| {DW_AT_low_pc $func1_addr} |
| {DW_AT_high_pc $func1_len DW_FORM_udata} |
| } |
| |
| DW_TAG_subprogram { |
| {DW_AT_name "func2"} |
| {DW_AT_low_pc $func2_addr} |
| {DW_AT_high_pc $func2_len DW_FORM_udata} |
| } |
| } |
| } |
| |
| # Generate a .debug_loc contribution. |
| loc { |
| cu_is_64 $is_64 |
| cu_version $cu_version |
| } { |
| foo_location_list: |
| entry $func1_addr "$func1_addr + $func1_len" { |
| DW_OP_constu 0x123456 |
| DW_OP_stack_value |
| } |
| entry $func2_addr "$func2_addr + $func2_len" { |
| DW_OP_constu 0x234567 |
| DW_OP_stack_value |
| } |
| } |
| } |
| |
| if { [prepare_for_testing "failed to prepare" ${testfile} \ |
| [list $srcfile $asm_file] {nodebug}] } { |
| return -1 |
| } |
| |
| if { ![runto_main] } { |
| return |
| } |
| |
| gdb_breakpoint "func1" |
| gdb_breakpoint "func2" |
| |
| gdb_continue_to_breakpoint "func1" |
| with_test_prefix "at func1" { |
| gdb_test "print /x foo" " = 0x123456" |
| } |
| |
| gdb_continue_to_breakpoint "func2" |
| with_test_prefix "at func2" { |
| gdb_test "print /x foo" " = 0x234567" |
| } |
| } |