gdb/testsuite/gdb.ada/array_of_variable_length.exp

   1 # Copyright 2015-2024 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 load_lib "ada.exp"
  17
  18 require allow_ada_tests
  19
  20 standard_ada_testfile foo
  21
  22 foreach_gnat_encoding scenario flags {all minimal} {
  23     lappend flags debug
  24
  25     if {[gdb_compile_ada "${srcfile}" "${binfile}-${scenario}" executable $flags] != ""} {
  26         return -1
  27     }
  28
  29     clean_restart ${testfile}-${scenario}
  30
  31     set bp_location [gdb_get_line_number "BREAK" ${testdir}/foo.adb]
  32     runto "foo.adb:$bp_location"
  33
  34     # Pck.A is an array that embeds elements with variable size so compilers will
  35     # emit DWARF attributes such as DW_AT_byte_stride to tell GDB how to fetch
  36     # individual elements.  Array stride is also a way to describe packed arrays:
  37     # make sure we do not consider Pck.A as a packed array.
  38     gdb_test "ptype pck.a" "array \\(1 \\.\\. 2\\) of pck\\.r_type"
  39
  40     # Make sure this also works with a type from a fully evaluated value.  During
  41     # evaluation, dynamic types can be "resolved" so GDB internals could "forget"
  42     # that elements have variable size.  Fortunately, type resolution of array
  43     # elements happens only when processing individual elements (i.e. the resolved
  44     # array type is still associated to the dynamic element type), so the following
  45     # is supposed to work.
  46     gdb_test "print pck.a" \
  47         "= \\(\\(l => 0, s => \"\"\\), \\(l => 2, s => \"ab\"\\)\\)"
  48     gdb_test "ptype $"\
  49         "array \\(1 \\.\\. 2\\) of pck\\.r_type"
  50 }