gdb/testsuite/gdb.base/gdbvars.exp

   1 # Copyright (C) 1992, 1997, 2007, 2008, 2009, 2010, 2011
   2 # 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 # This file was written by Fred Fish. (fnf@cygnus.com)
  18
  19 if $tracelevel then {
  20         strace $tracelevel
  21 }
  22
  23
  24 set testfile "gdbvars"
  25 set srcfile  ${testfile}.c
  26 set binfile  ${objdir}/${subdir}/${testfile}
  27
  28 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  29     untested gdbvars.exp
  30     return -1
  31 }
  32
  33 proc test_convenience_variables {} {
  34     global gdb_prompt
  35
  36     gdb_test_no_output "set \$foo = 101" \
  37         "Set a new convenience variable"
  38
  39     gdb_test "print \$foo"              " = 101" \
  40         "Print contents of new convenience variable"
  41
  42     gdb_test_no_output "set \$foo = 301" \
  43         "Set convenience variable to a new value"
  44
  45     gdb_test "print \$foo"              " = 301" \
  46         "Print new contents of convenience variable"
  47
  48     gdb_test_no_output "set \$_ = 11" \
  49         "Set convenience variable \$_"
  50
  51     gdb_test "print \$_"                " = 11" \
  52         "Print contents of convenience variable \$_"
  53
  54     gdb_test "print \$foo + 10" " = 311" \
  55         "Use convenience variable in arithmetic expression"
  56
  57     gdb_test "print (\$foo = 32) + 4"   " = 36" \
  58         "Use convenience variable assignment in arithmetic expression"
  59
  60     gdb_test "print \$bar"              " = void" \
  61         "Print contents of uninitialized convenience variable"
  62 }
  63
  64 proc test_value_history {} {
  65     global gdb_prompt
  66
  67     gdb_test "print 101"        "\\\$1 = 101" \
  68         "Set value-history\[1\] using \$1"
  69
  70     gdb_test "print 102"        "\\\$2 = 102" \
  71         "Set value-history\[2\] using \$2"
  72
  73     gdb_test "print 103"        "\\\$3 = 103" \
  74         "Set value-history\[3\] using \$3"
  75
  76     gdb_test "print \$\$"       "\\\$4 = 102" \
  77         "Print value-history\[MAX-1\] using inplicit index \$\$"
  78
  79     gdb_test "print \$\$"       "\\\$5 = 103" \
  80         "Print value-history\[MAX-1\] again using implicit index \$\$"
  81
  82     gdb_test "print \$" "\\\$6 = 103" \
  83         "Print value-history\[MAX\] using implicit index \$"
  84
  85     gdb_test "print \$\$2"      "\\\$7 = 102" \
  86         "Print value-history\[MAX-2\] using explicit index \$\$2"
  87
  88     gdb_test "print \$0"        "\\\$8 = 102" \
  89         "Print value-history\[MAX\] using explicit index \$0"
  90
  91     gdb_test "print 108"        "\\\$9 = 108"
  92
  93     gdb_test "print \$\$0"      "\\\$10 = 108" \
  94         "Print value-history\[MAX\] using explicit index \$\$0"
  95
  96     gdb_test "print \$1"        "\\\$11 = 101" \
  97         "Print value-history\[1\] using explicit index \$1"
  98
  99     gdb_test "print \$2"        "\\\$12 = 102" \
 100         "Print value-history\[2\] using explicit index \$2"
 101
 102     gdb_test "print \$3"        "\\\$13 = 103" \
 103         "Print value-history\[3\] using explicit index \$3"
 104
 105     gdb_test "print \$-3"       "\\\$14 = 100" \
 106         "Print (value-history\[MAX\] - 3) using implicit index \$"
 107
 108     gdb_test "print \$1 + 3"    "\\\$15 = 104" \
 109         "Use value-history element in arithmetic expression"
 110 }
 111
 112 proc test_with_program {} {
 113     global hex
 114     gdb_test_no_output "set \$prog_var = p" \
 115         "Set a new convenience variable to a program variable"
 116     gdb_test "print /x \$prog_var" " = $hex" \
 117         "Print contents of new convenience variable of program variable"
 118 }
 119
 120 # Start with a fresh gdb.
 121
 122 gdb_exit
 123 gdb_start
 124 gdb_reinitialize_dir $srcdir/$subdir
 125 gdb_load ${binfile}
 126
 127 gdb_test_no_output "set print sevenbit-strings"
 128
 129 test_value_history
 130 test_convenience_variables
 131 test_with_program