| # Copyright 2020-2021 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 unwinding when we have a frame inlined in the outer frame (in the sense |
| # of frame.c:outer_frame_id). |
| # |
| # The conditions required to reproduce the original issue are: |
| # |
| # 1. Have an outer frame whose DWARF CFI explicitly says that the frame return |
| # address is undefined. |
| # 2. A frame inlined in this other frame. |
| # |
| # Because of (1), the test has to be written in assembly with explicit CFI |
| # directives. |
| |
| load_lib dwarf.exp |
| |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| standard_testfile .S |
| |
| set dwarf_asm [standard_output_file dwarf-asm.S] |
| Dwarf::assemble $dwarf_asm { |
| global srcfile |
| |
| declare_labels foo_subprogram bar_subprogram |
| declare_labels stmt_list |
| |
| # See the comment in the .S file for the equivalent C program this is meant |
| # to represent. |
| |
| cu { label cu_label addr_size 4 } { |
| DW_TAG_compile_unit { |
| {DW_AT_name $srcfile} |
| {DW_AT_stmt_list $stmt_list DW_FORM_sec_offset} |
| {DW_AT_language @DW_LANG_C99} |
| {DW_AT_low_pc __cu_low_pc DW_FORM_addr} |
| {DW_AT_high_pc __cu_high_pc DW_FORM_addr} |
| } { |
| DW_TAG_subprogram { |
| {DW_AT_name "_start"} |
| {DW_AT_low_pc __start_low_pc DW_FORM_addr} |
| {DW_AT_high_pc __start_high_pc DW_FORM_addr} |
| } { |
| DW_TAG_inlined_subroutine { |
| {DW_AT_abstract_origin :$foo_subprogram} |
| {DW_AT_low_pc __foo_low_pc DW_FORM_addr} |
| {DW_AT_high_pc __foo_high_pc DW_FORM_addr} |
| {DW_AT_call_file 1 DW_FORM_data1} |
| {DW_AT_call_line 13 DW_FORM_data1} |
| } { |
| DW_TAG_inlined_subroutine { |
| {DW_AT_abstract_origin :$bar_subprogram} |
| {DW_AT_low_pc __bar_low_pc DW_FORM_addr} |
| {DW_AT_high_pc __bar_high_pc DW_FORM_addr} |
| {DW_AT_call_file 1 DW_FORM_data1} |
| {DW_AT_call_line 7 DW_FORM_data1} |
| } |
| } |
| } |
| |
| foo_subprogram: DW_TAG_subprogram { |
| {DW_AT_name "foo"} |
| {DW_AT_prototyped 1 DW_FORM_flag_present} |
| {DW_AT_inline 0x1 DW_FORM_data1} |
| } |
| |
| bar_subprogram: DW_TAG_subprogram { |
| {DW_AT_name "bar"} |
| {DW_AT_prototyped 1 DW_FORM_flag_present} |
| {DW_AT_inline 0x1 DW_FORM_data1} |
| } |
| } |
| } |
| |
| lines { } stmt_list { |
| global srcdir subdir srcfile |
| |
| include_dir "/some/directory" |
| file_name "/some/directory/file.c" 0 |
| } |
| |
| aranges {} cu_label { |
| arange {} __cu_low_pc __cu_high_pc |
| } |
| } |
| |
| if { [build_executable ${testfile}.exp ${testfile} "$srcfile $dwarf_asm" \ |
| {additional_flags=-nostdlib additional_flags=-static}] != 0 } { |
| untested "failed to compile" |
| return |
| } |
| |
| clean_restart $binfile |
| |
| if { [gdb_starti_cmd] != 0 } { |
| fail "failed to run to first instruction" |
| return |
| } |
| gdb_test "" "Program stopped.*" "starti prompt" |
| |
| gdb_test "frame" "in _start .*" |
| |
| gdb_test "stepi" "in foo .*" "step into foo" |
| gdb_test "stepi" "in bar .*" "step into bar" |
| gdb_test "stepi" "in foo .*" "step back into foo" |
| gdb_test "stepi" "in _start .*" "step back into _start" |