| # Tests for anonymous union support. |
| # Copyright 1998-1999, 2003-2004, 2007-2012 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 <http://www.gnu.org/licenses/>. |
| |
| # Written by Satish Pai <pai@apollo.hp.com> 1997-08-19 |
| |
| # This file is part of the gdb testsuite |
| |
| # |
| # test running programs |
| # |
| |
| |
| if { [skip_cplus_tests] } { continue } |
| |
| set testfile "anon-union" |
| set srcfile ${testfile}.cc |
| set binfile ${objdir}/${subdir}/${testfile} |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } { |
| perror "Testcase compile failed" 0 |
| continue |
| } |
| |
| # Start with a fresh gdb |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| gdb_load ${binfile} |
| |
| |
| if ![runto_main] then { |
| perror "couldn't run to breakpoint" |
| continue |
| } |
| |
| gdb_test_no_output "set width 0" |
| |
| #send_gdb "ptype foo\n" |
| #gdb_expect { |
| # -re "\r\n$gdb_prompt $" { |
| # pass "ptype foo" |
| # } |
| # -re ".*$gdb_prompt $" { fail "ptype foo" } |
| # timeout { fail "(timeout) ptype foo" } |
| #} |
| |
| #send_gdb "ptype bar\n" |
| #gdb_expect { |
| # -re "\r\n$gdb_prompt $" { |
| # pass "ptype foo" |
| # } |
| # -re ".*$gdb_prompt $" { fail "ptype foo" } |
| # timeout { fail "(timeout) ptype foo" } |
| #} |
| |
| # NOTE: Add -- ptype foo.x, etc. when things are working |
| |
| #Initialize foo |
| gdb_test "next" "40\[ \t\]*foo.paper = 33;" "next 1" |
| |
| # Print out the big anon union. |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 1" |
| |
| # Step over assignment to member |
| |
| gdb_test "next" "41\[ \t\]*foo.pebble = 44;" "next 2" |
| |
| # Now print out anon union again |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 2" |
| |
| # Modify the member just set |
| gdb_test_no_output "set var foo.cloth = 35" "set var foo.cloth" |
| |
| # Now print out anon union again to see if the right member was set |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 3" |
| |
| # Step over next assignment to member |
| |
| gdb_test "next" "42\[ \t\]*foo.mux = 55;" "next 3" |
| |
| # Now print out anon union again |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 4" |
| |
| # Modify the member just set |
| gdb_test_no_output "set var foo.pebble = 45" "set var foo.pebble" |
| |
| # Now print out anon union again to see if the right member was set |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 5" |
| |
| # Modify another member at a different level |
| gdb_test_no_output "set var foo.qux = 46" "set var foo.qux" |
| |
| # Now print out anon union again to see if the right member was set |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 6" |
| |
| # Modify the member at another level, but not the first one in the union |
| gdb_test_no_output "set var foo.mux = 47" "set var foo.mux" |
| |
| # Now print out anon union again to see if things worked |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 7" |
| |
| # Modify a member of a struct in an anon union |
| gdb_test_no_output "set var foo.x.rock = 48" "set var foo.x.rock" |
| |
| # Now print out anon union again to see if things worked |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 8" |
| |
| # Modify a member of a struct in an anon union, but something |
| # that doesn't alias to some other union member |
| gdb_test_no_output "set var foo.x.rock2 = 49" "set var foo.x.rock2" |
| |
| # Now print out anon union again to see if things worked |
| gdb_test "print foo" \ |
| "\\$\[0-9\]* = \{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\}\}" \ |
| "print foo 9" |
| |
| # Step over next four assignments |
| gdb_test "next 4" "53\[ \t\]*w = 45;" "next 4" |
| |
| # Tests for anon unions that are not members of a class or struct |
| |
| gdb_test "print w" "\\$\[0-9\]* = 0" "print w 1" |
| |
| gdb_test "print z" "\\$\[0-9\]* = 0" "print z 1" |
| |
| # Step over next assignment to w |
| gdb_test "next" "55\[ \t\]*int j = 0;" "next 5" |
| |
| # See if the change in value is noticed |
| gdb_test "print w" "\\$\[0-9\]* = 45" "print w 2" |
| |
| # See if z shows the same value |
| gdb_test "print z" "\\$\[0-9\]* = 45" "print z 2" |
| |
| # Set the anon union member |
| gdb_test_no_output "set var z = 27" "set var z" |
| |
| # See if the change in value is noticed |
| gdb_test "print w" "\\$\[0-9\]* = 27" "print w 3" |
| |
| # See if z shows the same value |
| gdb_test "print z" "\\$\[0-9\]* = 27" "print z 3" |