gdb/testsuite/gdb.python/py-linetable-empty.exp

   1 # Copyright (C) 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 # Test accessing an empty linetable in Python.
  17
  18 load_lib dwarf.exp
  19 load_lib gdb-python.exp
  20
  21 require dwarf2_support allow_python_tests
  22
  23 standard_testfile .c -dw.S
  24
  25 set asm_file [standard_output_file ${srcfile2}]
  26 Dwarf::assemble $asm_file {
  27
  28     cu {} {
  29         compile_unit {
  30             {language @DW_LANG_C}
  31             {name py-linetable-empty.c}
  32         } {
  33             subprogram {
  34                         {MACRO_AT_func {main}}
  35             }
  36         }
  37     }
  38 }
  39
  40 if { [prepare_for_testing "failed to prepare" ${testfile} \
  41           [list $srcfile $asm_file] {nodebug}] } {
  42     return -1
  43 }
  44
  45 if ![runto_main] {
  46         return -1
  47 }
  48
  49 gdb_test "python print(gdb.selected_frame().function().symtab.fullname())" \
  50         "py-linetable-empty.c" "Test main has symtab"
  51
  52 # Get the linetable for main's symbol table. This is empty as we didn't include
  53 # a linetable in the debug info.
  54 gdb_py_test_silent_cmd "python lt = gdb.selected_frame().function().symtab.linetable()" \
  55     "get linetable" 0
  56
  57 gdb_test "python print(lt.is_valid())" "True" \
  58         "Test linetable is valid"
  59
  60 gdb_test "python print(lt.line(1))" "None" \
  61         "Test line() returns None"
  62
  63 gdb_test "python print(lt.has_line(1))" \
  64         "RuntimeError.*: Linetable information not found in symbol table.*" \
  65         "Test has_line() throws exception"
  66
  67 gdb_test "python print(lt.source_lines())" \
  68         "RuntimeError.*: Linetable information not found in symbol table.*" \
  69         "Test source_lines() throws exception"
  70
  71 gdb_test "python print(list(lt))" "\\\[\\\]" \
  72         "Test iterating over linetable"