gdb/testsuite/gdb.dwarf2/rnglists-sec-offset.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 # Test DW_AT_ranges attributes referencing the .debug_rnglists section using the
  17 # DW_FORM_sec_offset form.
  18
  19 load_lib dwarf.exp
  20
  21 if {![dwarf2_support]} {
  22     return 0
  23 }
  24
  25 foreach_with_prefix is_64 {false true} {
  26     if { $is_64 } {
  27         standard_testfile main.c -dw64.S
  28         set testfile ${testfile}-dw64
  29     } else {
  30         standard_testfile main.c -dw32.S
  31         set testfile ${testfile}-dw32
  32     }
  33
  34     set asm_file [standard_output_file $srcfile2]
  35     Dwarf::assemble $asm_file {
  36         global is_64
  37
  38         declare_labels cu1_range_list cu2_range_list cu3_range_list
  39         declare_labels foo_range_list bar_range_list baz_range_list
  40
  41         # This CU uses the DW_FORM_sec_offset form to refer to the .debug_rnglists
  42         # section.
  43         cu {
  44             version 5
  45             is_64 $is_64
  46         } {
  47             DW_TAG_compile_unit {
  48                 {DW_AT_ranges $cu1_range_list DW_FORM_sec_offset}
  49             } {
  50                 DW_TAG_subprogram {
  51                     {DW_AT_name "foo"}
  52                     {DW_AT_ranges $foo_range_list DW_FORM_sec_offset}
  53                 }
  54             }
  55         }
  56
  57         # This CU uses the DW_FORM_sec_offset form to refer to the
  58         # .debug_rnglists section, but also has the DW_AT_rnglists_base
  59         # attribute present.  The DW_AT_rnglists_base attribute is not used to
  60         # interpret the DW_AT_ranges value, but it should also do no harm.
  61         cu {
  62             version 5
  63             is_64 $is_64
  64         } {
  65             DW_TAG_compile_unit {
  66                 {DW_AT_ranges $cu2_range_list DW_FORM_sec_offset}
  67                 {DW_AT_rnglists_base cu2_table DW_FORM_sec_offset}
  68             } {
  69                 DW_TAG_subprogram {
  70                     {DW_AT_name "bar"}
  71                     {DW_AT_ranges $bar_range_list DW_FORM_sec_offset}
  72                 }
  73             }
  74         }
  75
  76         # This CU uses the DW_FORM_sec_offset form to refer to the .debug_rnglists
  77         # section.  The corresponding contribution in the .debug_rnglists has no
  78         # offset array.
  79         cu {
  80             version 5
  81             is_64 $is_64
  82         } {
  83             DW_TAG_compile_unit {
  84                 {DW_AT_ranges $cu3_range_list DW_FORM_sec_offset}
  85             } {
  86                 DW_TAG_subprogram {
  87                     {DW_AT_name "baz"}
  88                     {DW_AT_ranges $baz_range_list DW_FORM_sec_offset}
  89                 }
  90             }
  91         }
  92
  93         rnglists {is-64 $is_64} {
  94             # The lists in this table are accessed by direct offset
  95             # (DW_FORM_sec_offset).
  96             table {} {
  97                 # For the first CU.
  98                 cu1_range_list: list_ {
  99                     start_end 0x4000 0x5000
 100                 }
 101
 102                 # For function foo.
 103                 foo_range_list: list_ {
 104                     start_end 0x4000 0x4010
 105                 }
 106             }
 107
 108             table {post-header-label cu2_table} {
 109                 # For the second CU.
 110                 cu2_range_list: list_ {
 111                     start_end 0x5000 0x6000
 112                 }
 113
 114                 # For the bar function.
 115                 bar_range_list: list_ {
 116                     start_end 0x5000 0x5010
 117                 }
 118             }
 119
 120             table {with-offset-array false} {
 121                 # For the third CU.
 122                 cu3_range_list: list_ {
 123                     start_end 0x6000 0x7000
 124                 }
 125
 126                 # For the baz function.
 127                 baz_range_list: list_ {
 128                     start_end 0x6000 0x6010
 129                 }
 130             }
 131         }
 132     }
 133
 134     if { [prepare_for_testing "failed to prepare" ${testfile} \
 135               [list $srcfile $asm_file] {nodebug}] } {
 136         return -1
 137     }
 138
 139     # Sanity checks to make sure GDB slurped the symbols correctly.
 140     gdb_test "p/x &foo" " = 0x4000"
 141     gdb_test "p/x &bar" " = 0x5000"
 142     gdb_test "p/x &baz" " = 0x6000"
 143 }