gdb/testsuite/gdb.base/gdbvars.exp

   1 # Copyright (C) 1992-2013 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 # This file was written by Fred Fish. (fnf@cygnus.com)
  17
  18
  19 set testfile "gdbvars"
  20 set srcfile  ${testfile}.c
  21 set binfile  ${objdir}/${subdir}/${testfile}
  22
  23 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  24     untested gdbvars.exp
  25     return -1
  26 }
  27
  28 proc test_convenience_variables {} {
  29     global gdb_prompt
  30
  31     gdb_test_no_output "set \$foo = 101" \
  32         "Set a new convenience variable"
  33
  34     gdb_test "print \$foo"              " = 101" \
  35         "Print contents of new convenience variable"
  36
  37     gdb_test_no_output "set \$foo = 301" \
  38         "Set convenience variable to a new value"
  39
  40     gdb_test "print \$foo"              " = 301" \
  41         "Print new contents of convenience variable"
  42
  43     gdb_test_no_output "set \$_ = 11" \
  44         "Set convenience variable \$_"
  45
  46     gdb_test "print \$_"                " = 11" \
  47         "Print contents of convenience variable \$_"
  48
  49     gdb_test "print \$foo + 10" " = 311" \
  50         "Use convenience variable in arithmetic expression"
  51
  52     gdb_test "print (\$foo = 32) + 4"   " = 36" \
  53         "Use convenience variable assignment in arithmetic expression"
  54
  55     gdb_test "print \$bar"              " = void" \
  56         "Print contents of uninitialized convenience variable"
  57 }
  58
  59 proc test_value_history {} {
  60     global gdb_prompt
  61
  62     gdb_test "print 101"        "\\\$1 = 101" \
  63         "Set value-history\[1\] using \$1"
  64
  65     gdb_test "print 102"        "\\\$2 = 102" \
  66         "Set value-history\[2\] using \$2"
  67
  68     gdb_test "print 103"        "\\\$3 = 103" \
  69         "Set value-history\[3\] using \$3"
  70
  71     gdb_test "print \$\$"       "\\\$4 = 102" \
  72         "Print value-history\[MAX-1\] using inplicit index \$\$"
  73
  74     gdb_test "print \$\$"       "\\\$5 = 103" \
  75         "Print value-history\[MAX-1\] again using implicit index \$\$"
  76
  77     gdb_test "print \$" "\\\$6 = 103" \
  78         "Print value-history\[MAX\] using implicit index \$"
  79
  80     gdb_test "print \$\$2"      "\\\$7 = 102" \
  81         "Print value-history\[MAX-2\] using explicit index \$\$2"
  82
  83     gdb_test "print \$0"        "\\\$8 = 102" \
  84         "Print value-history\[MAX\] using explicit index \$0"
  85
  86     gdb_test "print 108"        "\\\$9 = 108"
  87
  88     gdb_test "print \$\$0"      "\\\$10 = 108" \
  89         "Print value-history\[MAX\] using explicit index \$\$0"
  90
  91     gdb_test "print \$1"        "\\\$11 = 101" \
  92         "Print value-history\[1\] using explicit index \$1"
  93
  94     gdb_test "print \$2"        "\\\$12 = 102" \
  95         "Print value-history\[2\] using explicit index \$2"
  96
  97     gdb_test "print \$3"        "\\\$13 = 103" \
  98         "Print value-history\[3\] using explicit index \$3"
  99
 100     gdb_test "print \$-3"       "\\\$14 = 100" \
 101         "Print (value-history\[MAX\] - 3) using implicit index \$"
 102
 103     gdb_test "print \$1 + 3"    "\\\$15 = 104" \
 104         "Use value-history element in arithmetic expression"
 105 }
 106
 107 proc test_with_program {} {
 108     global hex
 109     gdb_test_no_output "set \$prog_var = p" \
 110         "Set a new convenience variable to a program variable"
 111     gdb_test "print /x \$prog_var" " = $hex" \
 112         "Print contents of new convenience variable of program variable"
 113 }
 114
 115 # Start with a fresh gdb.
 116
 117 gdb_exit
 118 gdb_start
 119 gdb_reinitialize_dir $srcdir/$subdir
 120 gdb_load ${binfile}
 121
 122 gdb_test_no_output "set print sevenbit-strings"
 123
 124 test_value_history
 125 test_convenience_variables
 126 test_with_program