gdb/testsuite/gdb.cp/var-tag.exp

   1 # Copyright 2014-2022 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 # This file is part of the gdb testsuite
  17
  18 # Test expressions in which variable names shadow tag names.
  19
  20 if {[skip_cplus_tests]} { return }
  21
  22 standard_testfile var-tag.cc var-tag-2.cc var-tag-3.cc var-tag-4.cc
  23
  24 if {[prepare_for_testing "failed to prepare" $testfile \
  25     [list $srcfile $srcfile2 $srcfile3 $srcfile4] {debug c++}]} {
  26     return -1
  27 }
  28
  29 proc do_global_tests {lang} {
  30     set invalid_print "Attempt to use a type name as an expression"
  31
  32     if {$lang == "c++"} {
  33         set opt_underlying "(: unsigned (int|short|char) )?"
  34     } else {
  35         set opt_underlying ""
  36     }
  37     set ptypefmt "type = (class|enum|union|struct) %s $opt_underlying{.*}"
  38
  39     with_test_prefix $lang {
  40     gdb_test_no_output "set language $lang"
  41     gdb_test "ptype C" "type = class C {.*}"
  42     gdb_test "print E" "= a"
  43     gdb_test "ptype E" "type = enum E $opt_underlying{.*}"
  44     gdb_test "print S" "= {<No data fields>}"
  45     gdb_test "ptype S" "type = struct S {.*}"
  46     gdb_test "print U" "= {.*}"
  47     gdb_test "ptype U" "type = union U {.*}"
  48     gdb_test "print cc" "= {.*}"
  49     gdb_test "ptype cc" "type = class CC {.*}"
  50     gdb_test "print CC" [format $invalid_print "CC"]
  51     gdb_test "ptype CC" [format $ptypefmt "CC"]
  52     gdb_test "print ss" "= {<No data fields>}"
  53     gdb_test "ptype ss" "type = struct SS {.*}"
  54     gdb_test "print SS" [format $invalid_print "SS"]
  55     gdb_test "ptype SS" [format $ptypefmt "SS"]
  56     gdb_test "print ee" "= .*"
  57     gdb_test "ptype ee" "type = enum EE $opt_underlying{.*}"
  58     gdb_test "print EE" [format $invalid_print "EE"]
  59     gdb_test "ptype EE" [format $ptypefmt "EE"]
  60     gdb_test "print uu" "= {.*}"
  61     gdb_test "ptype uu" "type = union UU {.*}"
  62     gdb_test "print UU" [format $invalid_print  "UU"]
  63     gdb_test "ptype UU" [format $ptypefmt "UU"]
  64
  65     # These tests exercise lookup of symbols using the "quick fns" API.
  66     # Each of them is in a separate CU as once its CU is expanded,
  67     # we're no longer using the quick fns API.
  68     gdb_test "print E2" "= a2"
  69     gdb_test "ptype E2" "type = enum E2 $opt_underlying{.*}"
  70     gdb_test "print S2" "= {<No data fields>}"
  71     gdb_test "ptype S2" "type = struct S2 {.*}"
  72     gdb_test "print U2" "= {.*}"
  73     gdb_test "ptype U2" "type = union U2 {.*}"
  74     }
  75 }
  76
  77 # First test expressions when there is no context.
  78 with_test_prefix "before start" {
  79     do_global_tests c++
  80     do_global_tests c
  81 }
  82
  83 # Run to main and test again.
  84 if {![runto_main]} {
  85     perror "couldn't run to main"
  86     return
  87 }
  88
  89 with_test_prefix "in main" {
  90     do_global_tests c++
  91     do_global_tests c
  92 }
  93
  94 # Run to C::f and test again.
  95 gdb_breakpoint "C::f"
  96 gdb_continue_to_breakpoint "continue to C::f"
  97 with_test_prefix "in C::f" {
  98     do_global_tests c++
  99     do_global_tests c
 100 }
 101
 102 # Another hard-to-guess-the-users-intent bug...
 103 # It would be really nice if we could query the user!
 104 with_test_prefix "global collision" {
 105     gdb_test_no_output "set language c++"
 106     setup_kfail "c++/16463" "*-*-*"
 107     gdb_test "print global" "= 3"
 108
 109     # ... with a simple workaround:
 110     gdb_test "print ::global" "= 3"
 111 }