gdb/testsuite/gdb.cp/formatted-ref.exp

   1 # Copyright 2007, 2008 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
  27 if $tracelevel then {
  28         strace $tracelevel
  29 }
  30
  31 set prms_id 0
  32 set bug_id 0
  33
  34 if { [skip_cplus_tests] } { continue }
  35
  36 set testfile "formatted-ref"
  37 set srcfile ${testfile}.cc
  38 set binfile ${objdir}/${subdir}/${testfile}
  39
  40 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
  41      untested formatted-ref.exp
  42      return -1
  43 }
  44
  45 proc get_address { var } {
  46     global expect_out
  47     global gdb_prompt
  48
  49     send_gdb "print &$var\n"
  50     gdb_expect {
  51         -re "\\$\[0-9\]+ = \\(.*\\) (0x\[0-9a-f\]+).*$gdb_prompt $" {
  52             return $expect_out(1,string)
  53         }
  54         timeout {
  55             perror "couldn't find address of $var"
  56             return ""
  57         }
  58     }
  59 }
  60
  61 proc test_p_x { var type val addr } {
  62     global gdb_prompt
  63
  64     set test "print/x $var"
  65     gdb_test_multiple $test $test {
  66         -re "\\$\[0-9\]+ = \\([string_to_regexp $type]\\) @0x\[a-f0-9\]+: [string_to_regexp $val].*$gdb_prompt $" {
  67             pass $test
  68         }
  69         -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" {
  70             fail "$test (prints just address)"
  71         }
  72         -re "\\$\[0-9\]+ = 0x\[a-f0-9\]+.*$gdb_prompt $" {
  73             fail "$test (prints unexpected address)"
  74         }
  75     }
  76     return 0
  77 }
  78
  79 proc test_p_x_addr { var addr } {
  80     global gdb_prompt
  81
  82     set test "print/x &$var"
  83     gdb_test_multiple $test $test {
  84         -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" {
  85             pass $test
  86         }
  87         -re "\\$\[0-9\]+ = 0x\[a-f0-9+\]+.*$gdb_prompt $" {
  88             fail "$test (prints unexpected address)"
  89         }
  90     }
  91     return 0
  92 }
  93
  94 proc test_p_x_ref_addr { var addr } {
  95     global gdb_prompt
  96
  97     set test "print/x *(&(&$var))"
  98     gdb_test_multiple $test $test {
  99         -re "\\$\[0-9\]+ = $addr.*$gdb_prompt $" {
 100             pass $test
 101         }
 102         -re "\\$\[0-9\]+ = 0x\[a-f0-9+\]+.*$gdb_prompt $" {
 103             fail "$test (prints unexpected address)"
 104         }
 105     }
 106     return 0
 107 }
 108
 109 gdb_exit
 110 gdb_start
 111 gdb_reinitialize_dir $srcdir/$subdir
 112 gdb_load ${binfile}
 113
 114 runto ${srcfile}:[gdb_get_line_number "marker here"]
 115
 116 set s1_address  [get_address "s1"]
 117 set e1_address  [get_address "e1"]
 118 set i1_address  [get_address "i1"]
 119
 120 test_p_x "s" "Struct1 &" "{x = 0xd, y = 0x13}" $s1_address
 121 test_p_x "e" "Enum1 &" "0xb" $e1_address
 122 test_p_x "i" "int &" "0x17" $i1_address
 123
 124 test_p_x_addr "s" $s1_address
 125 test_p_x_addr "e" $e1_address
 126 test_p_x_addr "i" $i1_address
 127
 128 test_p_x_ref_addr "s" $s1_address
 129 test_p_x_ref_addr "i" $i1_address
 130 test_p_x_ref_addr "e" $e1_address