gdb/testsuite/gdb.base/display.exp

   1 #   Copyright 1997-2013 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 # display.exp   Test display commands
  17 #               Also do some printing stuff for coverage's sake.
  18 #
  19 standard_testfile
  20
  21 if {[prepare_for_testing $testfile.exp $testfile $srcfile \
  22          {debug nowarnings}]} {
  23     untested display.exp
  24     return -1
  25 }
  26
  27 # Preserve the old timeout, and set a new one that should be
  28 # sufficient to avoid timing out during this test.
  29 set oldtimeout $timeout
  30 set timeout [expr "$timeout + 60"]
  31 verbose "Timeout is now $timeout seconds" 2
  32
  33 # use this to debug:
  34 #log_user 1
  35
  36 # Some coverage stuff
  37 #
  38 if !$use_gdb_stub {
  39     gdb_test "kill" ".*The program is not being run.*"
  40     gdb_test "detach" ".*"
  41     gdb_test "run" ".*"
  42
  43     gdb_load ${binfile}
  44     gdb_test "kill" ".*" "kill again"
  45     gdb_test "detach" ".*" "detach again"
  46
  47     gdb_exit
  48     gdb_start
  49     gdb_reinitialize_dir $srcdir/$subdir
  50     gdb_load ${binfile}
  51 }
  52
  53 # Ok, on to real life
  54 #
  55 if ![runto_main] then {
  56     fail "Could not run to main - other tests will fail."
  57     continue
  58 }
  59
  60 # Disable hardware watchpoints if necessary.
  61 if [target_info exists gdb,no_hardware_watchpoints] {
  62     gdb_test_no_output "set can-use-hw-watchpoints 0" ""
  63 }
  64
  65 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  66 gdb_test "break $bp_location1" ".*Breakpoint 2.*"           "break  do_loops"
  67 gdb_test "cont"     ".*Breakpoint 2, do_loops.*" "get to do_loops"
  68
  69 # Create stopping points.
  70 #
  71 gdb_test "watch sum"    ".*\[Ww\]atchpoint 3: sum.*" "set watch"
  72 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
  73 gdb_test "break $bp_location2"     ".*Breakpoint 4.*" "break loop end"
  74
  75 # Create displays for those points
  76 #
  77 gdb_test "info disp" ".*There are no auto-display expressions now..*" "inf disp"
  78 gdb_test "disp i" ".*1: i = 0.*" "display i"
  79 gdb_test "disp/x j" ".*2: /x j = 0x0.*" "display j"
  80 gdb_test "disp/i &k" ".*3: x/i &k(\r\n|  )   $hex:.*" "display &k"
  81 gdb_test "disp/f f" ".*4: /f f = 3.1415*" "display/f f"
  82 gdb_test "disp/s &sum" ".*5: x/s &sum  $hex.*sum.:.*" "display/s &sum"
  83
  84 # Hit the displays
  85 #
  86 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"
  87 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"
  88
  89 gdb_test "enab  disp 6" ".*No display number 6..*" "catch err"
  90 gdb_test_no_output "disab disp 1" "disab disp 1"
  91 gdb_test_no_output "disab disp 2" "disab disp 2"
  92 gdb_test_no_output "enab disp 1"  "re-enab"
  93 gdb_test_no_output "enab disp 1"  "re-enab of enab"
  94 gdb_test_no_output "undisp 5"     "undisp"
  95 gdb_test "info disp"    ".*Auto-display expressions now in effect.*y  /f f.*y  /1bi &k.*n  /x j.*y  i.*" "info disp"
  96
  97 gdb_test "cont" ".*\[Ww\]atch.*5.1415.*.*i = 0.*" "next hit"
  98
  99 gdb_test "undisp" \
 100     "" \
 101     "undisp all" \
 102     ".*Delete all auto-display expressions.*y or n. $" \
 103     "y"
 104
 105
 106 # Test displaying a variable that is temporarily at a bad address.
 107 # But if we can examine what's at memory address 0, then we'll also be
 108 # able to display it without error.  Don't run the test in that case.
 109 set can_read_0 0
 110 gdb_test_multiple "x 0" "memory at address 0" {
 111     -re "0x0:.*Cannot access memory at address 0x0.*$gdb_prompt $" { }
 112     -re "0x0:.*Error accessing memory address 0x0.*$gdb_prompt $" { }
 113     -re ".*$gdb_prompt $" {
 114         set can_read_0 1
 115     }
 116 }
 117
 118 if { !$can_read_0 } {
 119     gdb_test "disp *p_i" ".*: \\*p_i = 0"
 120     gdb_test "p p_i = 0x0" " = \\(int \\*\\) 0x0"
 121     gdb_test "display" ".*: \\*p_i = <error: .*>" "display bad address"
 122     gdb_test "p p_i = &i" " = \\(int \\*\\) $hex"
 123     gdb_test "display" ".*: \\*p_i = 0" "display good address"
 124
 125     gdb_test "undisp" \
 126         "" \
 127         "undisp all again" \
 128         ".*Delete all auto-display expressions.*y or n. $" \
 129         "y"
 130 }
 131
 132 gdb_test "disab 3" ".*.*" "disab 3"
 133 gdb_test "cont" ".*Breakpoint 4.*" "watch off"
 134
 135 # Now the printf tests
 136 #
 137 # The "finish" command may leave us mid-line in the caller on some
 138 # targets, including but not limited to the m68k, i386 & PA.  So we
 139 # have to arrange to step until we hit the line with the call to
 140 # "do_vars".
 141 gdb_test_multiple "finish" "finish" {
 142     -re ".*do_loops\\(\\);.*$gdb_prompt $" {
 143         send_gdb "step\n"
 144         exp_continue
 145     }
 146     -re ".*do_vars.*$gdb_prompt $" {
 147         pass "finish"
 148     }
 149 }
 150
 151 gdb_test "step"      ".*do_vars.*.*i = 9.*"
 152 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 153 gdb_test "tbreak $bp_location3" ".*breakpoint 5 a.*" "tbreak in do_vars"
 154 gdb_test "cont"      ".*do_vars.*$bp_location3.*$bp_location3.*"
 155
 156 # Beat on printf a bit
 157 #
 158 gdb_test "printf" ".*Argument required.*"
 159 gdb_test "printf %d" ".*Bad format string, missing.*"
 160 gdb_test "printf \"%d" ".*Bad format string, non-terminated.*"
 161 gdb_test "printf \"%d%d\",i" ".*Wrong number of arguments.*"
 162 gdb_test "printf \"\\\\!\\a\\f\\r\\t\\v\\b\\n\"" ".*!.*"
 163 gdb_test_no_output "printf \"\"" "re-set term"
 164 gdb_test "printf \"\\w\"" ".*Unrecognized escape character.*"
 165 gdb_test "printf \"%d\" j" ".*Invalid argument syntax.*"
 166 gdb_test "printf \"%p\\n\", 0" "\\(nil\\)"
 167 gdb_test "printf \"%p\\n\", 1" "0x1"
 168
 169 # play with "print", too
 170 #
 171 gdb_test "print/k j" ".*Undefined output format.*"
 172 gdb_test "print/d j" " = 0\[\\r\\n\]+"   "debug test output 1"
 173 gdb_test "print/r j" " = 0\[\\r\\n\]+"   "debug test output 1a"
 174 gdb_test "print/x j" " = 0x0\[\\r\\n\]+" "debug test output 2"
 175 gdb_test "print/r j" " = 0x0\[\\r\\n\]+" "debug test output 2a"
 176 gdb_test "print j"   " = 0\[\\r\\n\]+"   "debug test output 3"
 177
 178 # x/0 j doesn't produce any output and terminates PA64 process when testing
 179 if [istarget "hppa2.0w-hp-hpux11*"] {
 180     xfail "'x/0 j' terminates PA64 process - skipped test point"
 181 } else {
 182     gdb_test_no_output "x/0 j"
 183 }
 184 if [istarget "hppa*-hp-hpux*"] {
 185     # on HP-UX you could access the first page without getting an error
 186     gdb_test "x/rx j" ".*(Cannot access|Error accessing) memory.*|.*0xa:\[ \t\]*\[0-9\]+.*"
 187 }
 188 gdb_test "print/0 j" ".*Item count other than 1 is meaningless.*" "print/0 j"
 189 gdb_test "print/s sum" " = 1000" "ignored s"
 190 gdb_test "print/i sum" ".*Format letter.*is meaningless.*.*" "no i"
 191 gdb_test "print/a &sum" ".*= $hex.*<sum>.*"
 192 # If the constant below is larger than the length of main, then
 193 # this test will (incorrectly) fail.  So use a small number.
 194 gdb_test "print/a main+4" ".*= $hex.*<.*>.*"
 195 gdb_test "print/a \$pc" ".*= $hex.*<do_vars+.*>.*"
 196 gdb_test "print/a &&j" ".*A .* error in expression.*"
 197
 198 # Done!
 199 #
 200 gdb_exit
 201
 202 # Restore the preserved old timeout value.
 203 set timeout $oldtimeout
 204 verbose "Timeout is now $timeout seconds" 2
 205
 206 return 0