binutils-gdb/gdb/testsuite/gdb.ada/array_of_variable_length.exp

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# Copyright 2015-2017 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
load_lib "ada.exp"
standard_ada_testfile foo
if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug]] != "" } {
return -1
}
clean_restart ${testfile}
set bp_location [gdb_get_line_number "BREAK" ${testdir}/foo.adb]
runto "foo.adb:$bp_location"
# Pck.A is an array that embeds elements with variable size so compilers will
# emit DWARF attributes such as DW_AT_byte_stride to tell GDB how to fetch
# individual elements. Array stride is also a way to describe packed arrays:
# make sure we do not consider Pck.A as a packed array.
gdb_test "ptype pck.a" "array \\(1 \\.\\. 2\\) of pck\\.r_type"
# Make sure this also works with a type from a fully evaluated value. During
# evaluation, dynamic types can be "resolved" so GDB internals could "forget"
# that elements have variable size. Fortunately, type resolution of array
# elements happens only when processing individual elements (i.e. the resolved
# array type is still associated to the dynamic element type), so the following
# is supposed to work.
gdb_test "print pck.a" \
"= \\(\\(l => 0, s => \"\"\\), \\(l => 2, s => \"ab\"\\)\\)"
gdb_test "ptype $"\
"array \\(1 \\.\\. 2\\) of pck\\.r_type"