| 1 | # Copyright 2007, 2008, 2009 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 | # Author: P. N. Hilfinger, AdaCore, Inc. |
| 17 | |
| 18 | # This test checks the behavior of formatted print when applied to a |
| 19 | # reference value. The intended behavior is that a formatted print of |
| 20 | # such a value should display the same value as a plain print, |
| 21 | # modulo format, of course. Older versions of GDB would instead print |
| 22 | # the reference's address value itself when doing a formatted print, |
| 23 | # rather than printing both that and the dereferenced value. We also |
| 24 | # check that the (non-standard) expression &(&x), where x is of type T&, |
| 25 | # yields an appropriate value. |
| 26 | # This also tests that some other arithmetic operations on references |
| 27 | # work properly: condition expression using a reference object as one of its |
| 28 | # operand. |
| 29 | |
| 30 | if $tracelevel then { |
| 31 | strace $tracelevel |
| 32 | } |
| 33 | |
| 34 | set prms_id 0 |
| 35 | set bug_id 0 |
| 36 | |
| 37 | if { [skip_cplus_tests] } { continue } |
| 38 | |
| 39 | set testfile "formatted-ref" |
| 40 | set srcfile ${testfile}.cc |
| 41 | set binfile ${objdir}/${subdir}/${testfile} |
| 42 | |
| 43 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } { |
| 44 | untested formatted-ref.exp |
| 45 | return -1 |
| 46 | } |
| 47 | |
| 48 | proc get_address { var } { |
| 49 | global expect_out |
| 50 | global gdb_prompt |
| 51 | |
| 52 | send_gdb "print &$var\n" |
| 53 | gdb_expect { |
| 54 | -re "\\$\[0-9\]+ = \\(.*\\) (0x\[0-9a-f\]+).*$gdb_prompt $" { |
| 55 | return $expect_out(1,string) |
| 56 | } |
| 57 | timeout { |
| 58 | perror "couldn't find address of $var" |
| 59 | return "" |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | proc test_p_x { var type val addr } { |
| 65 | global gdb_prompt |
| 66 | |
| 67 | set test "print/x $var" |
| 68 | gdb_test_multiple $test $test { |
| 69 | -re "\\$\[0-9\]+ = \\([string_to_regexp $type]\\) @0x\[a-f0-9\]+: [string_to_regexp $val].*$gdb_prompt $" { |
| 70 | pass $test |
| 71 | } |
| 72 | -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" { |
| 73 | fail "$test (prints just address)" |
| 74 | } |
| 75 | -re "\\$\[0-9\]+ = 0x\[a-f0-9\]+.*$gdb_prompt $" { |
| 76 | fail "$test (prints unexpected address)" |
| 77 | } |
| 78 | } |
| 79 | return 0 |
| 80 | } |
| 81 | |
| 82 | proc test_p_x_addr { var addr } { |
| 83 | global gdb_prompt |
| 84 | |
| 85 | set test "print/x &$var" |
| 86 | gdb_test_multiple $test $test { |
| 87 | -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" { |
| 88 | pass $test |
| 89 | } |
| 90 | -re "\\$\[0-9\]+ = 0x\[a-f0-9+\]+.*$gdb_prompt $" { |
| 91 | fail "$test (prints unexpected address)" |
| 92 | } |
| 93 | } |
| 94 | return 0 |
| 95 | } |
| 96 | |
| 97 | proc test_p_x_ref_addr { var addr } { |
| 98 | global gdb_prompt |
| 99 | |
| 100 | set test "print/x *(&(&$var))" |
| 101 | gdb_test_multiple $test $test { |
| 102 | -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" { |
| 103 | pass $test |
| 104 | } |
| 105 | -re "\\$\[0-9\]+ = 0x\[a-f0-9+\]+.*$gdb_prompt $" { |
| 106 | fail "$test (prints unexpected address)" |
| 107 | } |
| 108 | } |
| 109 | return 0 |
| 110 | } |
| 111 | |
| 112 | proc test_p_op1_equals_op2 {op1 op2} { |
| 113 | set test "print $op1 == $op2" |
| 114 | gdb_test $test "\\$\[0-9\]+ = true" |
| 115 | } |
| 116 | |
| 117 | gdb_exit |
| 118 | gdb_start |
| 119 | gdb_reinitialize_dir $srcdir/$subdir |
| 120 | gdb_load ${binfile} |
| 121 | |
| 122 | runto ${srcfile}:[gdb_get_line_number "marker here"] |
| 123 | |
| 124 | set s1_address [get_address "s1"] |
| 125 | set e1_address [get_address "e1"] |
| 126 | set i1_address [get_address "i1"] |
| 127 | |
| 128 | test_p_x "s" "Struct1 &" "{x = 0xd, y = 0x13}" $s1_address |
| 129 | test_p_x "e" "Enum1 &" "0xb" $e1_address |
| 130 | test_p_x "i" "int &" "0x17" $i1_address |
| 131 | |
| 132 | test_p_x_addr "s" $s1_address |
| 133 | test_p_x_addr "e" $e1_address |
| 134 | test_p_x_addr "i" $i1_address |
| 135 | |
| 136 | test_p_x_ref_addr "s" $s1_address |
| 137 | test_p_x_ref_addr "i" $i1_address |
| 138 | test_p_x_ref_addr "e" $e1_address |
| 139 | |
| 140 | test_p_op1_equals_op2 "s.x" "13" |