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# Copyright 2014-2021 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
# 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 <>.
# This file is part of the gdb testsuite
# Test expressions in which variable names shadow tag names.
if {[skip_cplus_tests]} { continue }
if {[prepare_for_testing "failed to prepare" $testfile \
[list $srcfile $srcfile2 $srcfile3 $srcfile4] {debug c++}]} {
return -1
proc do_global_tests {lang} {
set invalid_print "Attempt to use a type name as an expression"
if {$lang == "c++"} {
set opt_underlying "(: unsigned (int|short|char) )?"
} else {
set opt_underlying ""
set ptypefmt "type = (class|enum|union|struct) %s $opt_underlying{.*}"
with_test_prefix $lang {
gdb_test_no_output "set language $lang"
gdb_test "ptype C" "type = class C {.*}"
gdb_test "print E" "= a"
gdb_test "ptype E" "type = enum E $opt_underlying{.*}"
gdb_test "print S" "= {<No data fields>}"
gdb_test "ptype S" "type = struct S {.*}"
gdb_test "print U" "= {.*}"
gdb_test "ptype U" "type = union U {.*}"
gdb_test "print cc" "= {.*}"
gdb_test "ptype cc" "type = class CC {.*}"
gdb_test "print CC" [format $invalid_print "CC"]
gdb_test "ptype CC" [format $ptypefmt "CC"]
gdb_test "print ss" "= {<No data fields>}"
gdb_test "ptype ss" "type = struct SS {.*}"
gdb_test "print SS" [format $invalid_print "SS"]
gdb_test "ptype SS" [format $ptypefmt "SS"]
gdb_test "print ee" "= .*"
gdb_test "ptype ee" "type = enum EE $opt_underlying{.*}"
gdb_test "print EE" [format $invalid_print "EE"]
gdb_test "ptype EE" [format $ptypefmt "EE"]
gdb_test "print uu" "= {.*}"
gdb_test "ptype uu" "type = union UU {.*}"
gdb_test "print UU" [format $invalid_print "UU"]
gdb_test "ptype UU" [format $ptypefmt "UU"]
# These tests exercise lookup of symbols using the "quick fns" API.
# Each of them is in a separate CU as once its CU is expanded,
# we're no longer using the quick fns API.
gdb_test "print E2" "= a2"
gdb_test "ptype E2" "type = enum E2 $opt_underlying{.*}"
gdb_test "print S2" "= {<No data fields>}"
gdb_test "ptype S2" "type = struct S2 {.*}"
gdb_test "print U2" "= {.*}"
gdb_test "ptype U2" "type = union U2 {.*}"
# First test expressions when there is no context.
with_test_prefix "before start" {
do_global_tests c++
do_global_tests c
# Run to main and test again.
if {![runto_main]} {
perror "couldn't run to main"
with_test_prefix "in main" {
do_global_tests c++
do_global_tests c
# Run to C::f and test again.
gdb_breakpoint "C::f"
gdb_continue_to_breakpoint "continue to C::f"
with_test_prefix "in C::f" {
do_global_tests c++
do_global_tests c
# Another hard-to-guess-the-users-intent bug...
# It would be really nice if we could query the user!
with_test_prefix "global collision" {
gdb_test_no_output "set language c++"
setup_kfail "c++/16463" "*-*-*"
gdb_test "print global" "= 3"
# ... with a simple workaround:
gdb_test "print ::global" "= 3"