gdb/testsuite/gdb.base/store.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010
   4 # Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 if $tracelevel {
  20     strace $tracelevel
  21 }
  22
  23 #
  24 # test running programs
  25 #
  26
  27 set testfile "store"
  28 set srcfile ${testfile}.c
  29 set binfile ${objdir}/${subdir}/${testfile}
  30 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  31     untested store.exp
  32     return -1
  33 }
  34
  35 if [get_compiler_info ${binfile}] {
  36     return -1;
  37 }
  38
  39 gdb_exit
  40 gdb_start
  41 gdb_reinitialize_dir $srcdir/$subdir
  42 gdb_load ${binfile}
  43
  44 #
  45 # set it up at a breakpoint so we can play with the variable values
  46 #
  47
  48 if ![runto_main] then {
  49     perror "couldn't run to breakpoint"
  50     continue
  51 }
  52
  53 #
  54
  55 proc check_set { t l r new add } {
  56     set prefix "var ${t} l"
  57     gdb_test "tbreak wack_${t}"
  58     gdb_test "continue" "register ${t} l = u, r = v;" \
  59         "continue to wack_${t}"
  60     gdb_test "next" "l = add_${t} .l, r.;" \
  61         "${prefix}; next ${t}"
  62     gdb_test "print l" " = ${l}" \
  63         "${prefix}; print old l, expecting ${l}"
  64     gdb_test "print r" " = ${r}" \
  65         "${prefix}; print old r, expecting ${r}"
  66     gdb_test_no_output "set variable l = 4" \
  67         "${prefix}; setting l to 4"
  68     gdb_test "print l" " = ${new}" \
  69         "${prefix}; print new l, expecting ${new}"
  70     gdb_test "next" "return l \\+ r;" \
  71         "${prefix}; next over add call"
  72     gdb_test "print l" " = ${add}" \
  73         "${prefix}; print incremented l, expecting ${add}"
  74 }
  75
  76 check_set "charest" "-1 .*" "-2 .*" "4 ..004." "2 ..002."
  77 check_set "short" "-1" "-2" "4" "2"
  78 check_set "int" "-1" "-2" "4" "2"
  79 check_set "long" "-1" "-2" "4" "2"
  80 check_set "longest" "-1" "-2" "4" "2"
  81 check_set "float" "-1" "-2" "4" "2"
  82 check_set "double" "-1" "-2" "4" "2"
  83 check_set "doublest" "-1" "-2" "4" "2"
  84
  85 #
  86
  87 proc up_set { t l r new } {
  88     set prefix "upvar ${t} l"
  89     gdb_test "tbreak add_${t}"
  90     gdb_test "continue" "return u . v;" \
  91         "continue to add_${t}"
  92     gdb_test "up" "l = add_${t} .l, r.;" \
  93         "${prefix}; up"
  94     gdb_test "print l" " = ${l}" \
  95         "${prefix}; print old l, expecting ${l}"
  96     gdb_test "print r" " = ${r}" \
  97         "${prefix}; print old r, expecting ${r}"
  98     gdb_test_no_output "set variable l = 4" \
  99         "${prefix}; set l to 4"
 100     gdb_test "print l" " = ${new}" \
 101         "${prefix}; print new l, expecting ${new}"
 102 }
 103
 104 up_set "charest" "-1 .*" "-2 .*" "4 ..004."
 105 up_set "short" "-1" "-2" "4"
 106 up_set "int" "-1" "-2" "4"
 107 up_set "long" "-1" "-2" "4"
 108 up_set "longest" "-1" "-2" "4"
 109 up_set "float" "-1" "-2" "4"
 110 up_set "double" "-1" "-2" "4"
 111 up_set "doublest" "-1" "-2" "4"
 112
 113 #
 114
 115 proc check_struct { t old new } {
 116     set prefix "var struct ${t} u"
 117     gdb_test "tbreak wack_struct_${t}"
 118     gdb_test "continue" "int i; register struct s_${t} u = z_${t};" \
 119         "continue to wack_struct_${t}"
 120     gdb_test "next 2" "add_struct_${t} .u.;" \
 121         "${prefix}; next to add_struct_${t} call"
 122     gdb_test "print u" " = ${old}" \
 123         "${prefix}; print old u, expecting ${old}"
 124     gdb_test_no_output "set variable u = s_${t}" \
 125         "${prefix}; set u to s_${t}"
 126     gdb_test "print u" " = ${new}" \
 127         "${prefix}; print new u, expecting ${new}"
 128 }
 129
 130 check_struct "1" "{s = \\{0}}" "{s = \\{1}}"
 131 check_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
 132 check_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
 133 check_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
 134
 135 proc up_struct { t old new } {
 136     set prefix "up struct ${t} u"
 137     gdb_test "tbreak add_struct_${t}"
 138     gdb_test "continue" "for .i = 0; i < sizeof .s. / sizeof .s.s.0..; i..." \
 139         "continue to add_struct_${t}"
 140     gdb_test "up" "u = add_struct_${t} .u.;" \
 141         "${prefix}; up"
 142     gdb_test "print u" " = ${old}" \
 143         "${prefix}; print old u, expecting ${old}"
 144     gdb_test_no_output "set variable u = s_${t}" \
 145         "${prefix}; set u to s_${t}"
 146     gdb_test "print u" " = ${new}" \
 147         "${prefix}; print new u, expecting ${new}"
 148 }
 149
 150 up_struct "1" "{s = \\{0}}" "{s = \\{1}}"
 151 up_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
 152 up_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
 153 up_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
 154
 155 #
 156
 157 proc check_field { t } {
 158     global gdb_prompt
 159     gdb_test "tbreak wack_field_${t}"
 160     gdb_test "continue" "register struct f_${t} u = f_${t};" \
 161             "continue field ${t}"
 162
 163     # Match either the return statement, or the line immediatly after
 164     # it.  The compiler can end up merging the return statement into
 165     # the return instruction.
 166     gdb_test "next" "(return u;|\})" "next field ${t}"
 167
 168     gdb_test "print u" " = {i = 1, j = 1, k = 1}" "old field ${t}"
 169     gdb_test_no_output "set variable u = F_${t}"
 170     gdb_test "print u" " = {i = 0, j = 0, k = 0}" "new field ${t}"
 171
 172     gdb_test_no_output "set variable u = F_${t}, u.i = f_${t}.i"
 173     gdb_test "print u" " = {i = 1, j = 0, k = 0}" "f_${t}.i"
 174
 175     gdb_test_no_output "set variable u = F_${t}, u.j = f_${t}.j"
 176     gdb_test "print u" " = {i = 0, j = 1, k = 0}" "f_${t}.j"
 177
 178     gdb_test_no_output "set variable u = F_${t}, u.k = f_${t}.k"
 179     gdb_test "print u" " = {i = 0, j = 0, k = 1}" "f_${t}.k"
 180
 181     gdb_test_no_output "set variable u = f_${t}, u.i = F_${t}.i"
 182     gdb_test "print u" " = {i = 0, j = 1, k = 1}" "F_${t}.i"
 183
 184     gdb_test_no_output "set variable u = f_${t}, u.j = F_${t}.j"
 185     gdb_test "print u" " = {i = 1, j = 0, k = 1}" "F_${t}.j"
 186
 187     gdb_test_no_output "set variable u = f_${t}, u.k = F_${t}.k"
 188     gdb_test "print u" " = {i = 1, j = 1, k = 0}" "F_${t}.k"
 189
 190 }
 191
 192 check_field 1
 193 check_field 2
 194 check_field 3
 195 check_field 4
 196
 197 #
 198
 199 # WANTED: A fairly portable way of convincing the compiler to split a
 200 # value across memory and registers.
 201