| # Copyright 2019-2021 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/>. |
| |
| # This test shows the importance of not corrupting the order of line |
| # table information. When multiple lines are given for the same |
| # address the compiler usually lists these in the order in which we |
| # would expect to encounter them. When stepping through nested inline |
| # frames the last line given for an address is assumed by GDB to be |
| # the most inner frame, and this is what GDB displays. |
| # |
| # If we corrupt the order of the line table entries then GDB will |
| # display the wrong line as being the inner most frame. |
| |
| load_lib dwarf.exp |
| |
| # This test can only be run on targets which support DWARF-2 and use gas. |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| # The .c files use __attribute__. |
| if [get_compiler_info] { |
| return -1 |
| } |
| if !$gcc_compiled { |
| return 0 |
| } |
| |
| standard_testfile .c .S |
| |
| set asm_file [standard_output_file $srcfile2] |
| Dwarf::assemble $asm_file { |
| global srcdir subdir srcfile srcfile2 |
| declare_labels ranges_label lines_label foo_prog |
| |
| lassign [function_range main [list ${srcdir}/${subdir}/$srcfile]] \ |
| main_start main_len |
| set main_end "$main_start + $main_len" |
| lassign [function_range bar [list ${srcdir}/${subdir}/$srcfile]] \ |
| bar_start bar_len |
| set bar_end "$bar_start + $bar_len" |
| |
| set call_line [gdb_get_line_number "main call foo"] |
| |
| cu {} { |
| compile_unit { |
| {language @DW_LANG_C} |
| {name dw2-inline-stepping.c} |
| {low_pc 0 addr} |
| {stmt_list ${lines_label} DW_FORM_sec_offset} |
| {ranges ${ranges_label} DW_FORM_sec_offset} |
| } { |
| subprogram { |
| {external 1 flag} |
| {name bar} |
| {low_pc $bar_start addr} |
| {high_pc "$bar_start + $bar_len" addr} |
| } |
| foo_prog: subprogram { |
| {name foo} |
| {inline 3 data1} |
| } |
| subprogram { |
| {external 1 flag} |
| {name main} |
| {low_pc $main_start addr} |
| {high_pc "$main_start + $main_len" addr} |
| } { |
| inlined_subroutine { |
| {abstract_origin %$foo_prog} |
| {low_pc main_label2 addr} |
| {high_pc main_label3 addr} |
| {call_file 1 data1} |
| {call_line $call_line data1} |
| } |
| } |
| } |
| } |
| |
| lines {version 2} lines_label { |
| include_dir "${srcdir}/${subdir}" |
| file_name "$srcfile" 1 |
| |
| program { |
| {DW_LNE_set_address $main_start} |
| {line [gdb_get_line_number "main prologue"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address main_label} |
| {line [gdb_get_line_number "main set global_var"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address main_label2} |
| {line [gdb_get_line_number "main call foo"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address main_label2} |
| {line [gdb_get_line_number "foo call bar"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address $main_end} |
| {DW_LNE_end_sequence} |
| |
| {DW_LNE_set_address $bar_start} |
| {line [gdb_get_line_number "bar prologue"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address bar_label} |
| {line [gdb_get_line_number "bar return global_var"]} |
| {DW_LNS_copy} |
| {DW_LNE_set_address $bar_end} |
| {DW_LNE_end_sequence} |
| } |
| } |
| |
| ranges {is_64 [is_64_target]} { |
| ranges_label: sequence { |
| range ${main_start} ${main_end} |
| range ${bar_start} ${bar_end} |
| } |
| } |
| } |
| |
| if { [prepare_for_testing "failed to prepare" ${testfile} \ |
| [list $srcfile $asm_file] {nodebug}] } { |
| return -1 |
| } |
| |
| if ![runto_main] { |
| return -1 |
| } |
| |
| set patterns [list "main call foo" \ |
| "foo call bar" \ |
| "bar return global_var"] |
| foreach p $patterns { |
| gdb_test "step" "/\\* $p \\*/" \ |
| "step to '$p'" |
| } |