| 1 | # Tests for anonymous union support. |
| 2 | # Copyright 1998-2015 Free Software Foundation, Inc. |
| 3 | |
| 4 | # This program is free software; you can redistribute it and/or modify |
| 5 | # it under the terms of the GNU General Public License as published by |
| 6 | # the Free Software Foundation; either version 3 of the License, or |
| 7 | # (at your option) any later version. |
| 8 | # |
| 9 | # This program is distributed in the hope that it will be useful, |
| 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | # GNU General Public License for more details. |
| 13 | # |
| 14 | # You should have received a copy of the GNU General Public License |
| 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | |
| 17 | # Written by Satish Pai <pai@apollo.hp.com> 1997-08-19 |
| 18 | |
| 19 | # This file is part of the gdb testsuite |
| 20 | |
| 21 | # |
| 22 | # test running programs |
| 23 | # |
| 24 | |
| 25 | |
| 26 | if { [skip_cplus_tests] } { continue } |
| 27 | |
| 28 | standard_testfile .cc |
| 29 | |
| 30 | if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} { |
| 31 | return -1 |
| 32 | } |
| 33 | |
| 34 | if ![runto_main] then { |
| 35 | perror "couldn't run to breakpoint" |
| 36 | continue |
| 37 | } |
| 38 | |
| 39 | gdb_test_no_output "set width 0" |
| 40 | |
| 41 | #send_gdb "ptype foo\n" |
| 42 | #gdb_expect { |
| 43 | # -re "\r\n$gdb_prompt $" { |
| 44 | # pass "ptype foo" |
| 45 | # } |
| 46 | # -re ".*$gdb_prompt $" { fail "ptype foo" } |
| 47 | # timeout { fail "(timeout) ptype foo" } |
| 48 | #} |
| 49 | |
| 50 | #send_gdb "ptype bar\n" |
| 51 | #gdb_expect { |
| 52 | # -re "\r\n$gdb_prompt $" { |
| 53 | # pass "ptype foo" |
| 54 | # } |
| 55 | # -re ".*$gdb_prompt $" { fail "ptype foo" } |
| 56 | # timeout { fail "(timeout) ptype foo" } |
| 57 | #} |
| 58 | |
| 59 | # NOTE: Add -- ptype foo.x, etc. when things are working |
| 60 | |
| 61 | #Initialize foo |
| 62 | gdb_test "next" "40\[ \t\]*foo.paper = 33;" "next 1" |
| 63 | |
| 64 | # Print out the big anon union. |
| 65 | gdb_test "print foo" \ |
| 66 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 0, cloth = 0\}, num2 = \{two = 0, three = 0\}\}" \ |
| 67 | "print foo 1" |
| 68 | |
| 69 | # Step over assignment to member |
| 70 | |
| 71 | gdb_test "next" "41\[ \t\]*foo.pebble = 44;" "next 2" |
| 72 | |
| 73 | # Now print out anon union again |
| 74 | gdb_test "print foo" \ |
| 75 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 33, cloth = 33\}, num2 = \{two = 0, three = 0\}\}" \ |
| 76 | "print foo 2" |
| 77 | |
| 78 | # Modify the member just set |
| 79 | gdb_test_no_output "set var foo.cloth = 35" "set var foo.cloth" |
| 80 | |
| 81 | # Now print out anon union again to see if the right member was set |
| 82 | gdb_test "print foo" \ |
| 83 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 84 | "print foo 3" |
| 85 | |
| 86 | # Step over next assignment to member |
| 87 | |
| 88 | gdb_test "next" "42\[ \t\]*foo.mux = 55;" "next 3" |
| 89 | |
| 90 | # Now print out anon union again |
| 91 | gdb_test "print foo" \ |
| 92 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 44, x = \{rock = 44, rock2 = 0\}, \{qux = 44, mux = 44\}, boulder = 44\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 93 | "print foo 4" |
| 94 | |
| 95 | # Modify the member just set |
| 96 | gdb_test_no_output "set var foo.pebble = 45" "set var foo.pebble" |
| 97 | |
| 98 | # Now print out anon union again to see if the right member was set |
| 99 | gdb_test "print foo" \ |
| 100 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 45, x = \{rock = 45, rock2 = 0\}, \{qux = 45, mux = 45\}, boulder = 45\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 101 | "print foo 5" |
| 102 | |
| 103 | # Modify another member at a different level |
| 104 | gdb_test_no_output "set var foo.qux = 46" "set var foo.qux" |
| 105 | |
| 106 | # Now print out anon union again to see if the right member was set |
| 107 | gdb_test "print foo" \ |
| 108 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 46, x = \{rock = 46, rock2 = 0\}, \{qux = 46, mux = 46\}, boulder = 46\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 109 | "print foo 6" |
| 110 | |
| 111 | # Modify the member at another level, but not the first one in the union |
| 112 | gdb_test_no_output "set var foo.mux = 47" "set var foo.mux" |
| 113 | |
| 114 | # Now print out anon union again to see if things worked |
| 115 | gdb_test "print foo" \ |
| 116 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 47, x = \{rock = 47, rock2 = 0\}, \{qux = 47, mux = 47\}, boulder = 47\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 117 | "print foo 7" |
| 118 | |
| 119 | # Modify a member of a struct in an anon union |
| 120 | gdb_test_no_output "set var foo.x.rock = 48" "set var foo.x.rock" |
| 121 | |
| 122 | # Now print out anon union again to see if things worked |
| 123 | gdb_test "print foo" \ |
| 124 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 0\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 125 | "print foo 8" |
| 126 | |
| 127 | # Modify a member of a struct in an anon union, but something |
| 128 | # that doesn't alias to some other union member |
| 129 | gdb_test_no_output "set var foo.x.rock2 = 49" "set var foo.x.rock2" |
| 130 | |
| 131 | # Now print out anon union again to see if things worked |
| 132 | gdb_test "print foo" \ |
| 133 | "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 49\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \ |
| 134 | "print foo 9" |
| 135 | |
| 136 | # Step over next four assignments |
| 137 | gdb_test "next 4" "53\[ \t\]*w = 45;" "next 4" |
| 138 | |
| 139 | # Tests for anon unions that are not members of a class or struct |
| 140 | |
| 141 | gdb_test "print w" "\\$\[0-9\]* = 0" "print w 1" |
| 142 | |
| 143 | gdb_test "print z" "\\$\[0-9\]* = 0" "print z 1" |
| 144 | |
| 145 | # Step over next assignment to w |
| 146 | gdb_test "next" "55\[ \t\]*int j = 0;" "next 5" |
| 147 | |
| 148 | # See if the change in value is noticed |
| 149 | gdb_test "print w" "\\$\[0-9\]* = 45" "print w 2" |
| 150 | |
| 151 | # See if z shows the same value |
| 152 | gdb_test "print z" "\\$\[0-9\]* = 45" "print z 2" |
| 153 | |
| 154 | # Set the anon union member |
| 155 | gdb_test_no_output "set var z = 27" "set var z" |
| 156 | |
| 157 | # See if the change in value is noticed |
| 158 | gdb_test "print w" "\\$\[0-9\]* = 27" "print w 3" |
| 159 | |
| 160 | # See if z shows the same value |
| 161 | gdb_test "print z" "\\$\[0-9\]* = 27" "print z 3" |