123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121 |
- # Copyright 2021-2022 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"
- }
- }
|