gdb/testsuite/gdb.base/display.exp

   1 #   Copyright 1997, 1998, 1999, 2000, 2001, 2003, 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 # display.exp   Test display commands
  18 #               Also do some printing stuff for coverage's sake.
  19 #
  20 if $tracelevel then {
  21         strace $tracelevel
  22 }
  23
  24 set testfile display
  25 set srcfile  ${testfile}.c
  26 set binfile  ${objdir}/${subdir}/${testfile}
  27
  28
  29
  30 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  31     untested display.exp
  32     return -1
  33 }
  34 if [target_info exists gdb_stub] {
  35     gdb_step_for_stub;
  36 }
  37
  38 # Preserve the old timeout, and set a new one that should be
  39 # sufficient to avoid timing out during this test.
  40 set oldtimeout $timeout
  41 set timeout [expr "$timeout + 60"]
  42 verbose "Timeout is now $timeout seconds" 2
  43
  44 # use this to debug:
  45 #log_user 1
  46
  47 gdb_exit
  48 gdb_start
  49 gdb_reinitialize_dir $srcdir/$subdir
  50 gdb_load ${binfile}
  51
  52 # Some coverage stuff
  53 #
  54 if ![target_info exists use_gdb_stub] {
  55     gdb_test "kill" ".*The program is not being run.*"
  56     gdb_test "detach" ".*"
  57     gdb_test "run" ".*"
  58
  59     gdb_load ${binfile}
  60     gdb_test "kill" ".*" "kill again"
  61     gdb_test "detach" ".*" "detach again"
  62
  63     gdb_exit
  64     gdb_start
  65     gdb_reinitialize_dir $srcdir/$subdir
  66     gdb_load ${binfile}
  67 }
  68
  69 # Ok, on to real life
  70 #
  71 if ![runto_main] then {
  72     fail "Could not run to main - other tests will fail."
  73     continue
  74 }
  75
  76 # Disable hardware watchpoints if necessary.
  77 if [target_info exists gdb,no_hardware_watchpoints] {
  78     gdb_test_no_output "set can-use-hw-watchpoints 0" ""
  79 }
  80
  81 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  82 gdb_test "break $bp_location1" ".*Breakpoint 2.*"           "break  do_loops"
  83 gdb_test "cont"     ".*Breakpoint 2, do_loops.*" "get to do_loops"
  84
  85 # Create stopping points.
  86 #
  87 gdb_test "watch sum"    ".*\[Ww\]atchpoint 3: sum.*" "set watch"
  88 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
  89 gdb_test "break $bp_location2"     ".*Breakpoint 4.*" "break loop end"
  90
  91 # Create displays for those points
  92 #
  93 gdb_test "info disp" ".*There are no auto-display expressions now..*" "inf disp"
  94 gdb_test "disp i" ".*1: i = 0.*" "display i"
  95 gdb_test "disp/x j" ".*2: /x j = 0x0.*" "display j"
  96 gdb_test "disp/i &k" ".*3: x/i &k(\r\n|  )   $hex:.*" "display &k"
  97 gdb_test "disp/f f" ".*4: /f f = 3.1415*" "display/f f"
  98 gdb_test "disp/s &sum" ".*5: x/s &sum  $hex.*sum.:.*" "display/s &sum"
  99
 100 # Hit the displays
 101 #
 102 gdb_test "cont" ".*\[Ww\]atchpoint 3: sum.*\[1-9\]*: x/s &sum.*\[1-9\]*: /f f = 3.1415\r\n\[1-9\]*: x/i &k.*\r\n\[1-9\]*: /x j = 0x0\r\n\[1-9\]*: i = 0.*" "first disp"
 103 gdb_test "cont" ".*\[Ww\]atchpoint 3: sum.*\[1-9\]*: x/s &sum.*\[1-9\]*: /f f = 4.1415\r\n\[1-9\]*: x/i &k.*\r\n\[1-9\]*: /x j = 0x0.*\[1-9\]*: i = 0.*" "second disp"
 104
 105 gdb_test "enab  disp 6" ".*No display number 6..*" "catch err"
 106 gdb_test_no_output "disab disp 1" "disab disp 1"
 107 gdb_test_no_output "disab disp 2" "disab disp 2"
 108 gdb_test_no_output "enab disp 1"  "re-enab"
 109 gdb_test_no_output "enab disp 1"  "re-enab of enab"
 110 gdb_test_no_output "undisp 5"     "undisp"
 111 gdb_test "info disp"    ".*Auto-display expressions now in effect.*y  /f f.*y  /1bi &k.*n  /x j.*y  i.*" "info disp"
 112
 113 gdb_test "cont" ".*\[Ww\]atch.*5.1415.*.*i = 0.*" "next hit"
 114
 115 gdb_test "undisp" \
 116     "" \
 117     "undisp all" \
 118     ".*Delete all auto-display expressions.*y or n. $" \
 119     "y"
 120
 121
 122 # Test displaying a variable that is temporarily at a bad address.
 123 # But if we can examine what's at memory address 0, then we'll also be
 124 # able to display it without error.  Don't run the test in that case.
 125 set can_read_0 0
 126 gdb_test_multiple "x 0" "memory at address 0" {
 127     -re "0x0:.*Cannot access memory at address 0x0.*$gdb_prompt $" { }
 128     -re "0x0:.*Error accessing memory address 0x0.*$gdb_prompt $" { }
 129     -re ".*$gdb_prompt $" {
 130         set can_read_0 1
 131     }
 132 }
 133
 134 if { !$can_read_0 } {
 135     gdb_test "disp *p_i" ".*: \\*p_i = 0"
 136     gdb_test "p p_i = 0x0" " = \\(int \\*\\) 0x0"
 137     gdb_test "display" ".*: \\*p_i = <error: .*>" "display bad address"
 138     gdb_test "p p_i = &i" " = \\(int \\*\\) $hex"
 139     gdb_test "display" ".*: \\*p_i = 0" "display good address"
 140
 141     gdb_test "undisp" \
 142         "" \
 143         "undisp all again" \
 144         ".*Delete all auto-display expressions.*y or n. $" \
 145         "y"
 146 }
 147
 148 gdb_test "disab 3" ".*.*" "disab 3"
 149 gdb_test "cont" ".*Breakpoint 4.*" "watch off"
 150
 151 # Now the printf tests
 152 #
 153 # The "finish" command may leave us mid-line in the caller on some
 154 # targets, including but not limited to the m68k, i386 & PA.  So we
 155 # have to arrange to step until we hit the line with the call to
 156 # "do_vars".
 157 gdb_test_multiple "finish" "finish" {
 158     -re ".*do_loops\\(\\);.*$gdb_prompt $" {
 159         send_gdb "step\n"
 160         exp_continue
 161     }
 162     -re ".*do_vars.*$gdb_prompt $" {
 163         pass "finish"
 164     }
 165 }
 166
 167 gdb_test "step"      ".*do_vars.*.*i = 9.*"
 168 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 169 gdb_test "tbreak $bp_location3" ".*breakpoint 5 a.*" "tbreak in do_vars"
 170 gdb_test "cont"      ".*do_vars.*$bp_location3.*$bp_location3.*"
 171
 172 # Beat on printf a bit
 173 #
 174 gdb_test "printf" ".*Argument required.*"
 175 gdb_test "printf %d" ".*Bad format string, missing.*"
 176 gdb_test "printf \"%d" ".*Bad format string, non-terminated.*"
 177 gdb_test "printf \"%d%d\",i" ".*Wrong number of arguments.*"
 178 gdb_test "printf \"\\\\!\\a\\f\\r\\t\\v\\b\\n\"" ".*!.*"
 179 gdb_test_no_output "printf \"\"" "re-set term"
 180 gdb_test "printf \"\\w\"" ".*Unrecognized escape character.*"
 181 gdb_test "printf \"%d\" j" ".*Invalid argument syntax.*"
 182 gdb_test "printf \"%p\\n\", 0" "\\(nil\\)"
 183 gdb_test "printf \"%p\\n\", 1" "0x1"
 184
 185 # play with "print", too
 186 #
 187 gdb_test "print/z j" ".*Undefined output format.*"
 188 gdb_test "print/d j" " = 0\[\\r\\n\]+"   "debug test output 1"
 189 gdb_test "print/r j" " = 0\[\\r\\n\]+"   "debug test output 1a"
 190 gdb_test "print/x j" " = 0x0\[\\r\\n\]+" "debug test output 2"
 191 gdb_test "print/r j" " = 0x0\[\\r\\n\]+" "debug test output 2a"
 192 gdb_test "print j"   " = 0\[\\r\\n\]+"   "debug test output 3"
 193
 194 # x/0 j doesn't produce any output and terminates PA64 process when testing
 195 if [istarget "hppa2.0w-hp-hpux11*"] {
 196     xfail "'x/0 j' terminates PA64 process - skipped test point"
 197 } else {
 198     gdb_test_no_output "x/0 j"
 199 }
 200 if [istarget "hppa*-hp-hpux*"] {
 201     # on HP-UX you could access the first page without getting an error
 202     gdb_test "x/rx j" ".*(Cannot access|Error accessing) memory.*|.*0xa:\[ \t\]*\[0-9\]+.*"
 203 }
 204 gdb_test "print/0 j" ".*Item count other than 1 is meaningless.*" "print/0 j"
 205 gdb_test "print/s sum" " = 1000" "ignored s"
 206 gdb_test "print/i sum" ".*Format letter.*is meaningless.*.*" "no i"
 207 gdb_test "print/a &sum" ".*= $hex.*<sum>.*"
 208 # If the constant below is larger than the length of main, then
 209 # this test will (incorrectly) fail.  So use a small number.
 210 gdb_test "print/a main+4" ".*= $hex.*<.*>.*"
 211 gdb_test "print/a \$pc" ".*= $hex.*<do_vars+.*>.*"
 212 gdb_test "print/a &&j" ".*A .* error in expression.*"
 213
 214 # Done!
 215 #
 216 gdb_exit
 217
 218 # Restore the preserved old timeout value.
 219 set timeout $oldtimeout
 220 verbose "Timeout is now $timeout seconds" 2
 221
 222 return 0