gdb/testsuite/gdb.base/define.exp

   1 # Copyright 1998-2019 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 # This file was written by Elena Zannoni. (ezannoni@cygnus.com)
  17
  18
  19 #
  20 # test running programs
  21 #
  22
  23 standard_testfile break.c break1.c
  24
  25 if {[prepare_for_testing "failed to prepare" ${testfile} \
  26          [list $srcfile $srcfile2] {debug nowarnings}]} {
  27     return -1
  28 }
  29
  30 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  31 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  32
  33 if ![runto_main] then { fail "define tests suppressed" }
  34
  35 # Verify that GDB allows a user to define their very own commands.
  36 #
  37 gdb_test_multiple "define nextwhere" "define user command: nextwhere" {
  38     -re "Type commands for definition of \"nextwhere\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  39         gdb_test "next\nbt\nend" "" \
  40             "define user command: nextwhere"
  41     }
  42 }
  43
  44 # Verify that those commands work as gdb_expected.
  45 #
  46 gdb_test "nextwhere" \
  47     "$bp_location1\[ \t\]*printf.*#0\[ \t\]*main.*:$bp_location1.*" \
  48     "use user command: nextwhere"
  49
  50 # Verify that a user can define a command whose spelling is a
  51 # proper substring of another user-defined command.
  52 #
  53 gdb_test_multiple "define nextwh" "define user command: nextwh" {
  54     -re "Type commands for definition of \"nextwh\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  55         gdb_test "next 2\nbt\nend" "" \
  56             "define user command: nextwh"
  57     }
  58 }
  59
  60 # Verify that a user can redefine their commands.  (Test both the
  61 # confirmed and unconfirmed cases.)
  62 #
  63 gdb_test "define nextwhere" \
  64     "Command \"nextwhere\" not redefined.*" \
  65     "redefine user command aborted: nextwhere" \
  66     "Redefine command \"nextwhere\".*y or n. $" \
  67     "n"
  68
  69 send_gdb "define nextwhere\n"
  70 gdb_expect {
  71   -re "Redefine command \"nextwhere\".*y or n. $"\
  72           {send_gdb "y\n"
  73            gdb_expect {
  74              -re "Type commands for definition of \"nextwhere\".\r\nEnd with a line saying just \"end\".\r\n>$"\
  75                      {send_gdb "bt\nnext\nend\n"
  76                       gdb_expect {
  77                         -re "$gdb_prompt $"\
  78                                 {pass "redefine user command: nextwhere"}
  79                         timeout {fail "(timeout) redefine user command: nextwhere"}
  80                       }
  81                      }
  82              timeout {fail "(timeout) redefine user command: nextwhere"}
  83            }
  84           }
  85   -re "$gdb_prompt $"\
  86           {fail "redefine user command: nextwhere"}
  87   timeout {fail "(timeout) redefine user command: nextwhere"}
  88 }
  89
  90 # Verify that GDB gracefully handles an attempt to redefine the
  91 # help text for a builtin command.
  92 #
  93 gdb_test "document step" "Command \"step\" is built-in.*" \
  94     "redocumenting builtin command disallowed"
  95
  96 # Verify that a user can document their own commands.  (And redocument
  97 # them.)
  98 #
  99 gdb_test_multiple "document nextwhere" "document user command: nextwhere" {
 100     -re "Type documentation for \"nextwhere\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 101         gdb_test "A next command that first shows you where you're stepping from.\nend" \
 102             "" \
 103             "document user command: nextwhere"
 104     }
 105 }
 106
 107 gdb_test_multiple "document nextwhere" "re-document user command: nextwhere" {
 108     -re "Type documentation for \"nextwhere\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 109         gdb_test "A next command that first shows you where you're stepping from.\nend" \
 110             "" \
 111             "re-document user command: nextwhere"
 112     }
 113 }
 114
 115 gdb_test "help nextwhere" \
 116     "A next command that first shows you where you're stepping from.*" \
 117     "help user command: nextwhere"
 118
 119 # Verify that the document command preserves whitespace in the beginning of the line.
 120 #
 121 gdb_test_multiple "document nextwhere" "set up whitespace in help string" {
 122     -re "Type documentation for \"nextwhere\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 123         gdb_test "   A next command that first shows you where you're stepping from.\nend" \
 124             "" \
 125             "set up whitespace in help string"
 126     }
 127 }
 128
 129 gdb_test "help nextwhere" \
 130     "   A next command that first shows you where you're stepping from.*" \
 131     "preserve whitespace in help string"
 132
 133 # Verify that the command parser doesn't require a space after an 'if'
 134 # command in a user defined function.
 135 #
 136 gdb_test_multiple "define ifnospace" "define user command: ifnospace" \
 137 {
 138   -re "Type commands for definition of \"ifnospace\".\r\nEnd with a line saying just \"end\".\r\n>$" \
 139     {
 140       gdb_test_multiple "if(3<4)\nprint \"hi there\\n\"\nend\nend" "send body of ifnospace"  \
 141         {
 142          -re "$gdb_prompt $"\
 143                  {pass "define user command: ifnospace"}
 144         }
 145     }
 146 }
 147
 148 gdb_test "ifnospace" ".*hi there.*" "test ifnospace is parsed correctly"
 149
 150 # Verify that the command parser properly handles command abbreviations.
 151 with_test_prefix "command abbreviations in define" {
 152   set test "define user command: breakmain"
 153   gdb_test_multiple "define breakmain" "$test" {
 154       -re "Type commands for definition of \"breakmain\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 155           pass "$test"
 156           set test "send body of breakmain"
 157           gdb_test_multiple "break main\ncommand\necho\nend\nend" "$test"  {
 158               -re "$gdb_prompt $"\
 159                   {pass "$test"}
 160           }
 161       }
 162   }
 163
 164   gdb_test "breakmain" ".*Breakpoint .*" "run user command"
 165
 166   # If GDB fails to interpret properly the abbrev "command", the last "end"
 167   # will be missing.  Issue it to avoid a desync that would break the other
 168   # tests in this file.
 169   gdb_test "end" \
 170     "This command cannot be used at the top level.*" \
 171     "additional end command"
 172
 173   gdb_test "info break \$bpnum" \
 174     [multi_line \
 175       "Num     Type\[ \]+Disp Enb Address\[ \]+What.*" \
 176       "\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*" \
 177       "\[\t \]+echo.*"] \
 178     "info break shows echo command"
 179 }
 180
 181
 182 # Verify that the command parser doesn't require a space after an 'while'
 183 # command in a user defined function.
 184 #
 185 gdb_test_multiple "define whilenospace" "define user command: whilenospace" \
 186 {
 187   -re "Type commands for definition of \"whilenospace\".\r\nEnd with a line saying just \"end\".\r\n>$" \
 188     {
 189       gdb_test_multiple "set \$i=1\nwhile(\$i<2)\nset \$i=2\nprint \"hi there\\n\"\nend\nend" "send body of whilenospace" \
 190          {
 191            -re "$gdb_prompt $" \
 192                    {pass "define user command: whilenospace"}
 193          }
 194     }
 195 }
 196
 197 gdb_test "whilenospace" ".*hi there.*" "test whilenospace is parsed correctly"
 198
 199 # Verify that the user can "hook" a builtin command.  We choose to
 200 # hook the "stop" pseudo command, and we'll define it to use a user-
 201 # define command.
 202 #
 203 gdb_test_multiple "define user-bt" "define user command: user-bt" {
 204     -re "Type commands for definition of \"user-bt\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 205         gdb_test "bt\nend" \
 206             "" \
 207             "define user command: user-bt"
 208     }
 209 }
 210
 211 gdb_test_multiple "define hook-stop" "define hook-stop command" {
 212     -re "Type commands for definition of \"hook-stop\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 213         gdb_test "user-b\nend" \
 214             "" \
 215             "define hook-stop command"
 216     }
 217 }
 218
 219 gdb_test "next" "#0\[ \t\]*main.*:$bp_location11.*" \
 220     "use hook-stop command"
 221
 222 # Verify that GDB responds gracefully to an attempt to define a "hook
 223 # command" which doesn't exist.  (Test both the confirmed and unconfirmed
 224 # cases.)
 225 #
 226 gdb_test "define hook-bar" \
 227     "Not confirmed.*" \
 228     "define hook undefined command aborted: bar" \
 229     "warning: Your new `hook-bar' command does not hook any existing command.\r\nProceed.*y or n. $" \
 230     "n"
 231
 232 send_gdb "define hook-bar\n"
 233 gdb_expect {
 234   -re "warning: Your new `hook-bar' command does not hook any existing command.\r\nProceed.*y or n. $"\
 235           {send_gdb "y\n"
 236            gdb_expect {
 237              -re "Type commands for definition of \"hook-bar\".\r\nEnd with a line saying just \"end\".\r\n>$"\
 238                      {send_gdb "nextwhere\nend\n"
 239                       gdb_expect {
 240                         -re "$gdb_prompt $"\
 241                                 {pass "define hook undefined command: bar"}
 242                         timeout {fail "(timeout) define hook undefined command: bar"}
 243                       }
 244                      }
 245              -re "$gdb_prompt $"\
 246                      {fail "define hook undefined command: bar"}
 247              timeout {fail "(timeout) define hook undefined command: bar"}
 248            }
 249           }
 250   -re "$gdb_prompt $"\
 251           {fail "define hook undefined command: bar"}
 252   timeout {fail "(timeout) define hook undefined command: bar"}
 253 }
 254
 255 # Test creation of an additional target subcommand.
 256 gdb_test_multiple "define target testsuite" "" {
 257     -re "Type commands for definition of \"target testsuite\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 258         gdb_test "printf \"hello\\n\"\nend" "" "define target testsuite"
 259     }
 260 }
 261 gdb_test_multiple "document target testsuite" "" {
 262     -re "Type documentation for \"target testsuite\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 263         gdb_test "A test target.\nend" "" "document target testsuite"
 264     }
 265 }
 266
 267 gdb_test "help target" ".*A test target.*"
 268 gdb_test "target testsuite" "hello"
 269 gdb_test "show user target testsuite" "User command \"target testsuite\":\r\n  printf \"hello\\\\n\"\r\n"
 270
 271 # We should even be able to hook subcommands.
 272 gdb_test_multiple "define target hook-testsuite" "" {
 273     -re "Type commands for definition of \"target hook-testsuite\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 274         gdb_test "printf \"one\\n\"\nend" "" "define target hook-testsuite"
 275     }
 276 }
 277
 278 gdb_test_multiple "define target hookpost-testsuite" "" {
 279     -re "Type commands for definition of \"target hookpost-testsuite\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 280         gdb_test "printf \"two\\n\"\nend" "" "define target hookpost-testsuite"
 281     }
 282 }
 283
 284 gdb_test "target testsuite" "one\r\nhello\r\ntwo" "target testsuite with hooks"
 285
 286 # This is a quasi-define command: Verify that the user can redefine
 287 # GDB's gdb_prompt.
 288 #
 289 gdb_test_multiple "set prompt \\(blah\\) " "set gdb_prompt" {
 290     -re "\\(blah\\) $" {
 291         pass "set gdb_prompt"
 292     }
 293 }
 294
 295 gdb_test_multiple "set prompt \\(gdb\\) " "reset gdb_prompt" {
 296     -re "$gdb_prompt $" {
 297         pass "reset gdb_prompt"
 298     }
 299 }
 300
 301 gdb_test_multiple "define do-define" "" {
 302     -re "Type commands for definition of \"do-define\".\r\nEnd with a line saying just \"end\".\r\n>$" {
 303         gdb_test "define do-printit\necho here\\n\nend\nend" "" "define do-define"
 304     }
 305 }
 306 gdb_test_no_output "do-define" "invoke do-define"
 307 gdb_test "do-printit" "here" "invoke do-printit"
 308
 309 gdb_exit
 310 return 0