gdb/testsuite/gdb.dwarf2/dw2-inline-header-2.exp

   1 # Copyright 2020-2022 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 behaviour 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  41 # this will become out of date.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 if {![dwarf2_support]} {
  52     return 0
  53 }
  54
  55 # The .c files use __attribute__.
  56 if [get_compiler_info] {
  57     return -1
  58 }
  59 if !$gcc_compiled {
  60     return 0
  61 }
  62
  63 standard_testfile dw2-inline-header-lbls.c dw2-inline-header.S \
  64     dw2-inline-header.c dw2-inline-header.h
  65
  66 set build_options {nodebug optimize=-O1}
  67
  68 set asm_file [standard_output_file $srcfile2]
  69 Dwarf::assemble $asm_file {
  70     global srcdir subdir srcfile srcfile3 srcfile4
  71     global build_options
  72     declare_labels lines_label callee_subprog_label
  73
  74     get_func_info main $build_options
  75
  76     cu {} {
  77         compile_unit {
  78             {producer "gcc" }
  79             {language @DW_LANG_C}
  80             {name ${srcfile3}}
  81             {low_pc 0 addr}
  82             {stmt_list ${lines_label} DW_FORM_sec_offset}
  83         } {
  84             callee_subprog_label: subprogram {
  85                 {external 1 flag}
  86                 {name callee}
  87                 {inline 3 data1}
  88             }
  89             subprogram {
  90                 {external 1 flag}
  91                 {name main}
  92                 {low_pc $main_start addr}
  93                 {high_pc "$main_start + $main_len" addr}
  94             } {
  95                 inlined_subroutine {
  96                     {abstract_origin %$callee_subprog_label}
  97                     {low_pc line_label_3 addr}
  98                     {high_pc line_label_5 addr}
  99                     {call_file 1 data1}
 100                     {call_line 18 data1}
 101                 }
 102             }
 103         }
 104     }
 105
 106     lines {version 2 default_is_stmt 1} lines_label {
 107         include_dir "${srcdir}/${subdir}"
 108         file_name "$srcfile3" 1
 109         file_name "$srcfile4" 1
 110
 111         program {
 112             {DW_LNE_set_address line_label_1}
 113             {DW_LNS_advance_line 15}
 114             {DW_LNS_copy}
 115
 116             {DW_LNE_set_address line_label_2}
 117             {DW_LNS_advance_line 1}
 118             {DW_LNS_copy}
 119
 120             {DW_LNS_set_file 2}
 121             {DW_LNE_set_address line_label_3}
 122             {DW_LNS_advance_line 4}
 123             {DW_LNS_copy}
 124
 125             {DW_LNE_set_address line_label_4}
 126             {DW_LNS_advance_line 1}
 127             {DW_LNS_copy}
 128
 129             {DW_LNS_advance_line -4}
 130             {DW_LNS_set_file 1}
 131             {DW_LNS_negate_stmt}
 132             {DW_LNS_copy}
 133
 134             {DW_LNE_set_address line_label_5}
 135             {DW_LNS_advance_line 1}
 136             {DW_LNS_negate_stmt}
 137             {DW_LNS_copy}
 138
 139             {DW_LNE_set_address line_label_6}
 140             {DW_LNS_advance_line 1}
 141             {DW_LNS_copy}
 142
 143             {DW_LNE_set_address line_label_7}
 144             {DW_LNE_end_sequence}
 145         }
 146     }
 147 }
 148
 149 if { [prepare_for_testing "failed to prepare" ${testfile} \
 150           [list $srcfile $asm_file] $build_options] } {
 151     return -1
 152 }
 153
 154 if ![runto_main] {
 155     return -1
 156 }
 157
 158 # Delete all breakpoints so that the output of "info breakpoints"
 159 # below will only contain a single breakpoint.
 160 delete_breakpoints
 161
 162 # Place a breakpoint within the function in the header file.
 163 gdb_breakpoint "${srcfile4}:22"
 164
 165 # Check that the breakpoint was placed where we expected.  It should
 166 # appear at the requested line.  When the bug in GDB was present the
 167 # breakpoint would be placed on one of the following lines instead.
 168 gdb_test "info breakpoints" \
 169     ".* in callee at \[^\r\n\]+${srcfile4}:22\\y.*" \
 170     "check for breakpoint at ${srcfile4}"
 171
 172 # Delete all breakpoints so that the output of "info breakpoints"
 173 # below will only contain a single breakpoint.
 174 delete_breakpoints
 175
 176 # Place a breakpoint within the function in the header file.
 177 gdb_breakpoint "${srcfile3}:19"
 178
 179 # Check that the breakpoint was placed where we expected.  It should
 180 # appear at the requested line.  When the bug in GDB was present the
 181 # breakpoint would be placed on one of the following lines instead.
 182 gdb_test "info breakpoints" \
 183     ".* in main at \[^\r\n\]+${srcfile3}:19\\y.*" \
 184     "check for breakpoint at ${srcfile3}"
 185
 186 # Line table entry for line 18 will have been discarded, so this
 187 # brekpoint will be at the same location as line 19.
 188 gdb_test "break ${srcfile3}:18" \
 189     "Note: breakpoint $decimal also set at pc $hex.*"