From f8e89861cfb6acbfa097814f5864afd5563a3011 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Fri, 24 Apr 2020 13:40:31 -0600 Subject: Add support for dynamic type lengths In Ada, a type with variant parts can have a variable length. This patch adds support for this to gdb, by integrating the length computation into the dynamic type resolution code. gdb/ChangeLog 2020-04-24 Tom Tromey * dwarf2/read.c (read_structure_type): Handle dynamic length. * gdbtypes.c (is_dynamic_type_internal): Check TYPE_HAS_DYNAMIC_LENGTH. (resolve_dynamic_type_internal): Use TYPE_DYNAMIC_LENGTH. * gdbtypes.h (TYPE_HAS_DYNAMIC_LENGTH, TYPE_DYNAMIC_LENGTH): New macros. (enum dynamic_prop_node_kind) : New constant. gdb/testsuite/ChangeLog 2020-04-24 Tom Tromey * gdb.ada/variant.exp: New file * gdb.ada/variant/pkg.adb: New file * gdb.ada/variant/pck.adb: New file --- gdb/testsuite/gdb.ada/variant/pkg.adb | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 gdb/testsuite/gdb.ada/variant/pkg.adb (limited to 'gdb/testsuite/gdb.ada/variant/pkg.adb') diff --git a/gdb/testsuite/gdb.ada/variant/pkg.adb b/gdb/testsuite/gdb.ada/variant/pkg.adb new file mode 100644 index 0000000..0cc38f5 --- /dev/null +++ b/gdb/testsuite/gdb.ada/variant/pkg.adb @@ -0,0 +1,30 @@ +-- Copyright 2020 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 . + +with Pck; use Pck; + +procedure Pkg is + + R, Q : Rec_Type; + + ST1 : constant Second_Type := (I => -4, One => 1, X => 2); + ST2 : constant Second_Type := (I => 99, One => 1, Y => 77); + +begin + R := (C => 'd'); + Q := (C => Character'First, X_First => 27); + + null; -- STOP +end Pkg; -- cgit v1.1