1 # Copyright 2020-2024 Free Software Foundation, Inc. 2 3 # This program is free software; you can redistribute it and/or modify 4 # it under the terms of the GNU General Public License as published by 5 # the Free Software Foundation; either version 3 of the License, or 6 # (at your option) any later version. 7 # 8 # This program is distributed in the hope that it will be useful, 9 # but WITHOUT ANY WARRANTY; without even the implied warranty of 10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 # GNU General Public License for more details. 12 # 13 # You should have received a copy of the GNU General Public License 14 # along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16 # Setup a line table where: 17 # 18 # | Addr | File | Line | Stmt | Inline | 19 # |------|------|------|------|--------| 20 # | 1 | 1 | 16 | Y | | 21 # | 2 | 1 | 17 | Y | | 22 # | 3 | 2 | 21 | Y | X | 23 # | 4 | 2 | 22 | Y | X | 24 # | 4 | 1 | 18 | N | X | 25 # | 5 | 1 | 19 | Y | | 26 # | 6 | 1 | 20 | Y | | 27 # | 7 | 1 | END | Y | | 28 # |------|------|------|------|--------| 29 # 30 # 31 # Place the first brekpoint at file 2, line 22 and a second breakpoint 32 # at file 1, line 19. A third breakpoint is placed at file 1, line 33 # 18, but as this line table entry will have been discarded[1] the 34 # third breakpoint will actually be placed at the same location as the 35 # second breakpoint. 36 # 37 # This test is designed to test GDB's internal behavior with respect 38 # to discarding particular line table entries. GCC and DWARF are 39 # starting to introduce the idea of line table views. As the views 40 # information becomes better supported within GDB it is likely that 41 # this will become out of date. This is fine, the test will have 42 # served its purpose by that point and can be deleted. 43 # 44 # [1] The entry for file 1, line 18 is discarded because it is at the 45 # same address as the previous entry, but the previous entry is-stmt, 46 # while line 18 is a non-stmt. 47 48 load_lib dwarf.exp 49 50 # This test can only be run on targets which support DWARF-2 and use gas. 51 require dwarf2_support 52 53 # The .c files use __attribute__. 54 require is_c_compiler_gcc 55 56 standard_testfile dw2-inline-header-lbls.c dw2-inline-header.S \ 57 dw2-inline-header.c dw2-inline-header.h 58 59 set build_options {nodebug optimize=-O1} 60 61 set asm_file [standard_output_file $srcfile2] 62 Dwarf::assemble $asm_file { 63 global srcdir subdir srcfile srcfile3 srcfile4 64 global build_options 65 declare_labels lines_label callee_subprog_label 66 67 get_func_info main $build_options 68 69 cu {} { 70 compile_unit { 71 {producer "gcc" } 72 {language @DW_LANG_C} 73 {name ${srcfile3}} 74 {low_pc 0 addr} 75 {stmt_list ${lines_label} DW_FORM_sec_offset} 76 } { 77 callee_subprog_label: subprogram { 78 {external 1 flag} 79 {name callee} 80 {inline 3 data1} 81 } 82 subprogram { 83 {external 1 flag} 84 {name main} 85 {low_pc $main_start addr} 86 {high_pc "$main_start + $main_len" addr} 87 } { 88 inlined_subroutine { 89 {abstract_origin %$callee_subprog_label} 90 {low_pc line_label_3 addr} 91 {high_pc line_label_5 addr} 92 {call_file 1 data1} 93 {call_line 18 data1} 94 } 95 } 96 } 97 } 98 99 lines {version 2 default_is_stmt 1} lines_label { 100 include_dir "${srcdir}/${subdir}" 101 file_name "$srcfile3" 1 102 file_name "$srcfile4" 1 103 104 program { 105 DW_LNE_set_address line_label_1 106 DW_LNS_advance_line 15 107 DW_LNS_copy 108 109 DW_LNE_set_address line_label_2 110 DW_LNS_advance_line 1 111 DW_LNS_copy 112 113 DW_LNS_set_file 2 114 DW_LNE_set_address line_label_3 115 DW_LNS_advance_line 4 116 DW_LNS_copy 117 118 DW_LNE_set_address line_label_4 119 DW_LNS_advance_line 1 120 DW_LNS_copy 121 122 DW_LNS_advance_pc 0 123 DW_LNS_advance_line -4 124 DW_LNS_set_file 1 125 DW_LNS_negate_stmt 126 DW_LNS_copy 127 128 DW_LNE_set_address line_label_5 129 DW_LNS_advance_line 1 130 DW_LNS_negate_stmt 131 DW_LNS_copy 132 133 DW_LNE_set_address line_label_6 134 DW_LNS_advance_line 1 135 DW_LNS_copy 136 137 DW_LNE_set_address "$main_start + $main_len" 138 DW_LNE_end_sequence 139 } 140 } 141 } 142 143 if { [prepare_for_testing "failed to prepare" ${testfile} \ 144 [list $srcfile $asm_file] $build_options] } { 145 return -1 146 } 147 148 if ![runto_main] { 149 return -1 150 } 151 152 # Delete all breakpoints, watchpoints, tracepoints, and catchpoints so that 153 # the output of "info breakpoints" below will only contain a single breakpoint. 154 delete_breakpoints 155 156 # Place a breakpoint within the function in the header file. 157 gdb_breakpoint "${srcfile4}:22" 158 159 # Check that the breakpoint was placed where we expected. It should 160 # appear at the requested line. When the bug in GDB was present the 161 # breakpoint would be placed on one of the following lines instead. 162 gdb_test "info breakpoints" \ 163 ".* in callee at \[^\r\n\]+${srcfile4}:22\\y.*" \ 164 "check for breakpoint at ${srcfile4}" 165 166 # Delete all breakpoints, watchpoints, tracepoints, and catchpoints so that 167 # the output of "info breakpoints" below will only contain a single breakpoint. 168 delete_breakpoints 169 170 # Place a breakpoint within the function in the header file. 171 gdb_breakpoint "${srcfile3}:19" 172 173 # Check that the breakpoint was placed where we expected. It should 174 # appear at the requested line. When the bug in GDB was present the 175 # breakpoint would be placed on one of the following lines instead. 176 gdb_test "info breakpoints" \ 177 ".* in main at \[^\r\n\]+${srcfile3}:19\\y.*" \ 178 "check for breakpoint at ${srcfile3}" 179 180 # Line table entry for line 18 will have been discarded, so this 181 # brekpoint will be at the same location as line 19. 182 gdb_test "break ${srcfile3}:18" \ 183 "Note: breakpoint $decimal also set at pc $hex.*" 184
Indexes created Mon Apr 13 00:22:24 UTC 2026