gdb/testsuite/gdb.dwarf2/dw2-ranges-overlap.exp

   1 # Copyright 2020-2021 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 load_lib dwarf.exp
  16
  17 # The function foo is encapsulated by two functions from CU
  18 # $srcfile (main and bar), but the debug info does not describe foo, so
  19 # foo should not be seen as part of CU $srcfile.
  20 # Run to foo, and check that the current language is the default auto/C.
  21 # If foo is considered part of CU $srcfile, the language will be auto/C++
  22 # instead.
  23
  24 # This test can only be run on targets which support DWARF-2 and use gas.
  25 if {![dwarf2_support]} {
  26     verbose "Skipping $gdb_test_file_name."
  27     return 0
  28 }
  29
  30 # The .c files use __attribute__.
  31 if [get_compiler_info] {
  32     return -1
  33 }
  34 if !$gcc_compiled {
  35     verbose "Skipping $gdb_test_file_name."
  36     return 0
  37 }
  38
  39 standard_testfile .c -dw.S
  40
  41 set asm_file [standard_output_file $srcfile2]
  42 Dwarf::assemble $asm_file {
  43     global srcdir subdir srcfile srcfile2
  44     declare_labels ranges_label
  45
  46     # Find start address and length for our functions.
  47     set main_func \
  48         [function_range main [list ${srcdir}/${subdir}/$srcfile]]
  49     set foo_func \
  50         [function_range foo [list ${srcdir}/${subdir}/$srcfile]]
  51     set bar_func \
  52         [function_range bar [list ${srcdir}/${subdir}/$srcfile]]
  53
  54     cu {} {
  55         compile_unit {
  56             {language @DW_LANG_C_plus_plus}
  57             {name $srcfile}
  58             {ranges ${ranges_label} DW_FORM_sec_offset}
  59         } {
  60             subprogram {
  61                 {external 1 flag}
  62                 {name main}
  63             }
  64         }
  65     }
  66
  67     ranges {is_64 [is_64_target]} {
  68         ranges_label: sequence {
  69             base [lindex $main_func 0]
  70             range 0 [lindex $main_func 1]
  71             base [lindex $bar_func 0]
  72             range 0 [lindex $bar_func 1]
  73         }
  74     }
  75 }
  76
  77 if { [prepare_for_testing "failed to prepare" ${testfile} \
  78           [list $srcfile $asm_file] {nodebug}] } {
  79     return -1
  80 }
  81
  82 if ![runto foo] {
  83     return -1
  84 }
  85
  86 gdb_test "show language" \
  87     "The current source language is \"auto; currently c\"\."