binutils-gdb/gdb/testsuite/gdb.ada/dynamic-iface.exp
Tom Tromey d537777dfe Decode "dynamic" interface types in Ada
In Ada, if a class implements an interface and has a dynamic
superclass, then the "offset to top" -- the offset that says how to
turn a pointer to the interface into a pointer to the whole object --
is stored in the object itself.  This patch changes GDB to understand
this.

Because this only touches Ada code, and because Joel already reviewed
it internally, I am checking it in.
2022-03-30 09:01:04 -06:00

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# Copyright 2022 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"
if { [skip_ada_tests] } { return -1 }
if {![gnat_runtime_has_debug_info]} {
untested "GNAT runtime debuginfo required for this test"
return -1
}
standard_ada_testfile main
if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug additional_flags=-gnat05}] != "" } {
return -1
}
clean_restart ${testfile}
set bp_location [gdb_get_line_number "STOP" ${testdir}/concrete.adb]
runto "concrete.adb:$bp_location"
gdb_test "print obj" \
[string_to_regexp "(n => 3, a => \"ABC\", value => 93)"] \
"print local as interface"
gdb_continue_to_breakpoint STOP
gdb_test "print obj" \
[string_to_regexp "(n => 5, a => \"DEFGH\", value => 107)"] \
"print local2 as interface"