gdb/testsuite/gdb.base/store.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2002, 2003, 2004 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 if $tracelevel {
  20     strace $tracelevel
  21 }
  22
  23 #
  24 # test running programs
  25 #
  26 set prms_id 0
  27 set bug_id 0
  28
  29 set testfile "store"
  30 set srcfile ${testfile}.c
  31 set binfile ${objdir}/${subdir}/${testfile}
  32 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  33     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  34 }
  35
  36 if [get_compiler_info ${binfile}] {
  37     return -1;
  38 }
  39
  40 gdb_exit
  41 gdb_start
  42 gdb_reinitialize_dir $srcdir/$subdir
  43 gdb_load ${binfile}
  44
  45 #
  46 # set it up at a breakpoint so we can play with the variable values
  47 #
  48
  49 if ![runto_main] then {
  50     perror "couldn't run to breakpoint"
  51     continue
  52 }
  53
  54 #
  55
  56 proc check_set { t l r new add } {
  57     set prefix "var ${t} l"
  58     gdb_test "tbreak wack_${t}"
  59     gdb_test "continue" "register ${t} l = u, r = v;" \
  60         "continue to wack_${t}"
  61     gdb_test "next" "l = add_${t} .l, r.;" \
  62         "${prefix}; next ${t}"
  63     gdb_test "print l" " = ${l}" \
  64         "${prefix}; print old l, expecting ${l}"
  65     gdb_test "print r" " = ${r}" \
  66         "${prefix}; print old r, expecting ${r}"
  67     gdb_test "set variable l = 4" "" \
  68         "${prefix}; setting l to 4"
  69     gdb_test "print l" " = ${new}" \
  70         "${prefix}; print new l, expecting ${l}"
  71     gdb_test "next" "return l \\+ r;" \
  72         "${prefix}; next over add call"
  73     gdb_test "print l" " = ${add}" \
  74         "${prefix}; print incremented l, expecting ${add}"
  75 }
  76
  77 check_set "charest" "-1 .*" "-2 .*" "4 ..004." "2 ..002."
  78 check_set "short" "-1" "-2" "4" "2"
  79 check_set "int" "-1" "-2" "4" "2"
  80 check_set "long" "-1" "-2" "4" "2"
  81 check_set "longest" "-1" "-2" "4" "2"
  82 check_set "float" "-1" "-2" "4" "2"
  83 check_set "double" "-1" "-2" "4" "2"
  84 check_set "doublest" "-1" "-2" "4" "2"
  85
  86 #
  87
  88 proc up_set { t l r new } {
  89     set prefix "upvar ${t} l"
  90     gdb_test "tbreak add_${t}"
  91     gdb_test "continue" "return u . v;" \
  92         "continue to add_${t}"
  93     gdb_test "up" "l = add_${t} .l, r.;" \
  94         "${prefix}; up"
  95     gdb_test "print l" " = ${l}" \
  96         "${prefix}; print old l, expecting ${l}"
  97     gdb_test "print r" " = ${r}" \
  98         "${prefix}; print old r, expecting ${r}"
  99     gdb_test "set variable l = 4" "" \
 100         "${prefix}; set l to 4"
 101     gdb_test "print l" " = ${new}" \
 102         "${prefix}; print new l, expecting ${new}"
 103 }
 104
 105 up_set "charest" "-1 .*" "-2 .*" "4 ..004."
 106 up_set "short" "-1" "-2" "4"
 107 up_set "int" "-1" "-2" "4"
 108 up_set "long" "-1" "-2" "4"
 109 up_set "longest" "-1" "-2" "4"
 110 up_set "float" "-1" "-2" "4"
 111 up_set "double" "-1" "-2" "4"
 112 up_set "doublest" "-1" "-2" "4"
 113
 114 #
 115
 116 proc check_struct { t old new } {
 117     set prefix "var struct ${t} u"
 118     gdb_test "tbreak wack_struct_${t}"
 119     gdb_test "continue" "int i; register struct s_${t} u = z_${t};" \
 120         "continue to wack_struct_${t}"
 121     gdb_test "next 2" "add_struct_${t} .u.;" \
 122         "${prefix}; next to add_struct_${t} call"
 123     gdb_test "print u" " = ${old}" \
 124         "${prefix}; print old u, expecting ${old}"
 125     gdb_test "set variable u = s_${t}" "" \
 126         "${prefix}; set u to s_${t}"
 127     gdb_test "print u" " = ${new}" \
 128         "${prefix}; print new u, expecting ${new}"
 129 }
 130
 131 check_struct "1" "{s = \\{0}}" "{s = \\{1}}"
 132 check_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
 133 check_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
 134 check_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
 135
 136 proc up_struct { t old new } {
 137     set prefix "up struct ${t} u"
 138     gdb_test "tbreak add_struct_${t}"
 139     gdb_test "continue" "for .i = 0; i < sizeof .s. / sizeof .s.s.0..; i..." \
 140         "continue to add_struct_${t}"
 141     gdb_test "up" "u = add_struct_${t} .u.;" \
 142         "${prefix}; up"
 143     gdb_test "print u" " = ${old}" \
 144         "${prefix}; print old u, expecting ${old}"
 145     gdb_test "set variable u = s_${t}" "" \
 146         "${prefix}; set u to s_${t}"
 147     gdb_test "print u" " = ${new}" \
 148         "${prefix}; print new u, expecting ${new}"
 149 }
 150
 151 up_struct "1" "{s = \\{0}}" "{s = \\{1}}"
 152 up_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
 153 up_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
 154 up_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
 155
 156 #
 157
 158 proc check_field { t } {
 159     global gdb_prompt
 160     gdb_test "tbreak wack_field_${t}"
 161     gdb_test "continue" "register struct f_${t} u = f_${t};" \
 162             "continue field ${t}"
 163
 164     # Match either the return statement, or the line immediatly after
 165     # it.  The compiler can end up merging the return statement into
 166     # the return instruction.
 167     gdb_test "next" "(return u;|\})" "next field ${t}"
 168
 169     gdb_test "print u" " = {i = 1, j = 1, k = 1}" "old field ${t}"
 170     gdb_test "set variable u = F_${t}"
 171     gdb_test "print u" " = {i = 0, j = 0, k = 0}" "new field ${t}"
 172
 173     gdb_test "set variable u = F_${t}, u.i = f_${t}.i"
 174     gdb_test "print u" " = {i = 1, j = 0, k = 0}" "f_${t}.i"
 175
 176     gdb_test "set variable u = F_${t}, u.j = f_${t}.j"
 177     gdb_test "print u" " = {i = 0, j = 1, k = 0}" "f_${t}.j"
 178
 179     gdb_test "set variable u = F_${t}, u.k = f_${t}.k"
 180     gdb_test "print u" " = {i = 0, j = 0, k = 1}" "f_${t}.k"
 181
 182     gdb_test "set variable u = f_${t}, u.i = F_${t}.i"
 183     gdb_test "print u" " = {i = 0, j = 1, k = 1}" "F_${t}.i"
 184
 185     gdb_test "set variable u = f_${t}, u.j = F_${t}.j"
 186     gdb_test "print u" " = {i = 1, j = 0, k = 1}" "F_${t}.j"
 187
 188     gdb_test "set variable u = f_${t}, u.k = F_${t}.k"
 189     gdb_test "print u" " = {i = 1, j = 1, k = 0}" "F_${t}.k"
 190
 191 }
 192
 193 check_field 1
 194 check_field 2
 195 check_field 3
 196 check_field 4
 197
 198 #
 199
 200 # WANTED: A fairly portable way of convincing the compiler to split a
 201 # value across memory and registers.
 202