gdb/testsuite/gdb.ada/array_of_variable_length.exp

   1 # Copyright 2015-2019 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 standard_ada_testfile foo
  19
  20 if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug]] != "" } {
  21   return -1
  22 }
  23
  24 clean_restart ${testfile}
  25
  26 set bp_location [gdb_get_line_number "BREAK" ${testdir}/foo.adb]
  27 runto "foo.adb:$bp_location"
  28
  29 # Pck.A is an array that embeds elements with variable size so compilers will
  30 # emit DWARF attributes such as DW_AT_byte_stride to tell GDB how to fetch
  31 # individual elements.  Array stride is also a way to describe packed arrays:
  32 # make sure we do not consider Pck.A as a packed array.
  33 gdb_test "ptype pck.a" "array \\(1 \\.\\. 2\\) of pck\\.r_type"
  34
  35 # Make sure this also works with a type from a fully evaluated value.  During
  36 # evaluation, dynamic types can be "resolved" so GDB internals could "forget"
  37 # that elements have variable size.  Fortunately, type resolution of array
  38 # elements happens only when processing individual elements (i.e. the resolved
  39 # array type is still associated to the dynamic element type), so the following
  40 # is supposed to work.
  41 gdb_test "print pck.a" \
  42          "= \\(\\(l => 0, s => \"\"\\), \\(l => 2, s => \"ab\"\\)\\)"
  43 gdb_test "ptype $"\
  44          "array \\(1 \\.\\. 2\\) of pck\\.r_type"