161 lines
5.8 KiB
Text
161 lines
5.8 KiB
Text
# Tests for anonymous union support.
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# Copyright 1998-2016 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Written by Satish Pai <pai@apollo.hp.com> 1997-08-19
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# This file is part of the gdb testsuite
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#
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# test running programs
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#
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if { [skip_cplus_tests] } { continue }
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standard_testfile .cc
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if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
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return -1
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}
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if ![runto_main] then {
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perror "couldn't run to breakpoint"
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continue
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}
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gdb_test_no_output "set width 0"
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#send_gdb "ptype foo\n"
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#gdb_expect {
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# -re "\r\n$gdb_prompt $" {
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# pass "ptype foo"
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# }
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# -re ".*$gdb_prompt $" { fail "ptype foo" }
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# timeout { fail "(timeout) ptype foo" }
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#}
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#send_gdb "ptype bar\n"
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#gdb_expect {
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# -re "\r\n$gdb_prompt $" {
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# pass "ptype foo"
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# }
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# -re ".*$gdb_prompt $" { fail "ptype foo" }
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# timeout { fail "(timeout) ptype foo" }
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#}
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# NOTE: Add -- ptype foo.x, etc. when things are working
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#Initialize foo
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gdb_test "next" "40\[ \t\]*foo.paper = 33;" "next 1"
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# Print out the big anon union.
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 1"
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# Step over assignment to member
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gdb_test "next" "41\[ \t\]*foo.pebble = 44;" "next 2"
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# Now print out anon union again
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 2"
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# Modify the member just set
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gdb_test_no_output "set var foo.cloth = 35" "set var foo.cloth"
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# Now print out anon union again to see if the right member was set
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 3"
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# Step over next assignment to member
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gdb_test "next" "42\[ \t\]*foo.mux = 55;" "next 3"
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# Now print out anon union again
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 4"
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# Modify the member just set
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gdb_test_no_output "set var foo.pebble = 45" "set var foo.pebble"
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# Now print out anon union again to see if the right member was set
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 5"
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# Modify another member at a different level
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gdb_test_no_output "set var foo.qux = 46" "set var foo.qux"
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# Now print out anon union again to see if the right member was set
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 6"
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# Modify the member at another level, but not the first one in the union
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gdb_test_no_output "set var foo.mux = 47" "set var foo.mux"
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# Now print out anon union again to see if things worked
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 7"
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# Modify a member of a struct in an anon union
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gdb_test_no_output "set var foo.x.rock = 48" "set var foo.x.rock"
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# Now print out anon union again to see if things worked
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 8"
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# Modify a member of a struct in an anon union, but something
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# that doesn't alias to some other union member
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gdb_test_no_output "set var foo.x.rock2 = 49" "set var foo.x.rock2"
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# Now print out anon union again to see if things worked
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gdb_test "print foo" \
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"\\$\[0-9\]* = \{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\}\}" \
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"print foo 9"
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# Step over next four assignments
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gdb_test "next 4" "53\[ \t\]*w = 45;" "next 4"
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# Tests for anon unions that are not members of a class or struct
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gdb_test "print w" "\\$\[0-9\]* = 0" "print w 1"
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gdb_test "print z" "\\$\[0-9\]* = 0" "print z 1"
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# Step over next assignment to w
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gdb_test "next" "55\[ \t\]*int j = 0;" "next 5"
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# See if the change in value is noticed
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gdb_test "print w" "\\$\[0-9\]* = 45" "print w 2"
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# See if z shows the same value
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gdb_test "print z" "\\$\[0-9\]* = 45" "print z 2"
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# Set the anon union member
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gdb_test_no_output "set var z = 27" "set var z"
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# See if the change in value is noticed
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gdb_test "print w" "\\$\[0-9\]* = 27" "print w 3"
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# See if z shows the same value
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gdb_test "print z" "\\$\[0-9\]* = 27" "print z 3"
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