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