gdb/testsuite/gdb.base/checkpoint.exp

   1 #   Copyright 2005, 2007, 2008, 2009, 2010 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 if $tracelevel then {
  17         strace $tracelevel
  18         }
  19
  20 if { [is_remote target] || ![isnative] } then {
  21     continue
  22 }
  23
  24 # Until "set follow-fork-mode" and "catch fork" are implemented on
  25 # other targets...
  26 #
  27 if {![istarget "*-*-linux*"]} then {
  28     continue
  29 }
  30
  31
  32 set testfile "checkpoint"
  33 set srcfile ${testfile}.c
  34 set binfile ${objdir}/${subdir}/${testfile}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  37      untested checkpoint.exp
  38      return -1
  39 }
  40
  41 # Start with a fresh gdb
  42
  43 gdb_exit
  44 gdb_start
  45 gdb_reinitialize_dir $srcdir/$subdir
  46 gdb_load ${binfile}
  47
  48 global gdb_prompt
  49
  50 #
  51 # This tests gdb checkpoint and restart.
  52 #
  53
  54 remote_download host ${srcdir}/${subdir}/pi.txt pi.txt
  55
  56 runto_main
  57 set break1_loc [gdb_get_line_number "breakpoint 1"]
  58 set break2_loc [gdb_get_line_number "breakpoint 2"]
  59 set break3_loc [gdb_get_line_number "breakpoint 3"]
  60 set break4_loc [gdb_get_line_number "breakpoint 4"]
  61
  62 gdb_breakpoint $break1_loc
  63 gdb_test "continue" "breakpoint 1.*" "break1 start"
  64
  65 gdb_test "checkpoint" ".*" ""
  66 gdb_test "continue 10" "breakpoint 1.*" "break1 two"
  67
  68 gdb_test "checkpoint" ".*" ""
  69 gdb_test "continue 10" "breakpoint 1.*" "break1 three"
  70
  71 gdb_test "checkpoint" ".*" ""
  72 gdb_test "continue 10" "breakpoint 1.*" "break1 four"
  73
  74 gdb_test "checkpoint" ".*" ""
  75 gdb_test "continue 10" "breakpoint 1.*" "break1 five"
  76
  77 gdb_test "checkpoint" ".*" ""
  78 gdb_test "continue 10" "breakpoint 1.*" "break1 six"
  79
  80 gdb_test "checkpoint" ".*" ""
  81 gdb_test "continue 10" "breakpoint 1.*" "break1 seven"
  82
  83 gdb_test "checkpoint" ".*" ""
  84 gdb_test "continue 10" "breakpoint 1.*" "break1 eight"
  85
  86 gdb_test "checkpoint" ".*" ""
  87 gdb_test "continue 10" "breakpoint 1.*" "break1 nine"
  88
  89 gdb_test "checkpoint" ".*" ""
  90 gdb_test "continue 10" "breakpoint 1.*" "break1 ten"
  91
  92 gdb_test "checkpoint" ".*" ""
  93
  94 gdb_test "info checkpoints" \
  95     " 10 .* 9 .* 8 .* 7 .* 6 .* 5 .* 4 .* 3 .* 2 .* 1 .*" \
  96     "info checkpoints one"
  97
  98 delete_breakpoints
  99 gdb_breakpoint $break2_loc
 100 gdb_test "continue" "breakpoint 2.*" "break2 one"
 101
 102 gdb_test "restart 1" "Switching to .*breakpoint 1.*" "restart 1 one"
 103 gdb_test "print i" " = 78" "verify i 1 one"
 104 gdb_test "step" "if .c == EOF.*" "step in 1 one"
 105 gdb_test "print lines" " = 1.*" "verify lines 1 one"
 106
 107 gdb_test "restart 2" "Switching to .*breakpoint 1.*" "restart 2 one"
 108 gdb_test "step" "if .c == EOF.*" "step in 2 one"
 109 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 2 one"
 110 gdb_test "print lines" " = 11.*" "verify lines 2 one"
 111
 112 gdb_test "restart 3" "Switching to .*breakpoint 1.*" "restart 3 one"
 113 gdb_test "step" "if .c == EOF.*" "step in 3 one"
 114 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 3 one"
 115 gdb_test "print lines" " = 21.*" "verify lines 3 one"
 116
 117 gdb_test "restart 4" "Switching to .*breakpoint 1.*" "restart 4 one"
 118 gdb_test "step" "if .c == EOF.*" "step in 4 one"
 119 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 4 one"
 120 gdb_test "print lines" " = 31.*" "verify lines 4 one"
 121
 122 gdb_test "restart 5" "Switching to .*breakpoint 1.*" "restart 5 one"
 123 gdb_test "step" "if .c == EOF.*" "step in 5 one"
 124 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 5 one"
 125 gdb_test "print lines" " = 41.*" "verify lines 5 one"
 126
 127 gdb_test "restart 6" "Switching to .*breakpoint 1.*" "restart 6 one"
 128 gdb_test "step" "if .c == EOF.*" "step in 6 one"
 129 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 6 one"
 130 gdb_test "print lines" " = 51.*" "verify lines 6 one"
 131
 132 gdb_test "restart 7" "Switching to .*breakpoint 1.*" "restart 7 one"
 133 gdb_test "step" "if .c == EOF.*" "step in 7 one"
 134 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 7 one"
 135 gdb_test "print lines" " = 61.*" "verify lines 7 one"
 136
 137 gdb_test "restart 8" "Switching to .*breakpoint 1.*" "restart 8 one"
 138 gdb_test "step" "if .c == EOF.*" "step in 8 one"
 139 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 8 one"
 140 gdb_test "print lines" " = 71.*" "verify lines 8 one"
 141
 142 gdb_test "restart 9" "Switching to .*breakpoint 1.*" "restart 9 one"
 143 gdb_test "step" "if .c == EOF.*" "step in 9 one"
 144 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 9 one"
 145 gdb_test "print lines" " = 81.*" "verify lines 9 one"
 146
 147 gdb_test "restart 10" "Switching to .*breakpoint 1.*" "restart 10 one"
 148 gdb_test "step" "if .c == EOF.*" "step in 10 one"
 149 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 10 one"
 150 gdb_test "print lines" " = 91.*" "verify lines 10 one"
 151
 152 #
 153 # Now let the files be closed by the original process,
 154 # and diff them.
 155
 156 gdb_test "restart 0" "Switching to .*breakpoint 2.*" "restart 0 one"
 157 gdb_breakpoint $break3_loc
 158 gdb_test "continue" "breakpoint 3.*" "break3 one"
 159
 160 gdb_test "shell diff -s pi.txt copy1.txt" \
 161     "Files pi.txt and copy1.txt are identical.*" \
 162     "Diff input and output one"
 163
 164 #
 165 # And now run from various checkpoints, allowing
 166 # various amounts of input and output.
 167 #
 168
 169 gdb_breakpoint $break1_loc
 170
 171 gdb_test "restart 1" "Switching to .*c == EOF.*" "restart 1 two"
 172 gdb_test "continue" ".*" ""
 173 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 1 one"
 174 gdb_test "step" "if .c == EOF.*" "step in 1 two"
 175 gdb_test "print lines" " = 102.*" "verify lines 1 two"
 176
 177 gdb_test "restart 2" "Switching to .*c == EOF.*" "restart 2 two"
 178 gdb_test "continue" ".*" ""
 179 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 2 one"
 180 gdb_test "step" "if .c == EOF.*" "step in 2 two"
 181 gdb_test "print lines" " = 112.*" "verify lines 2 two"
 182
 183 gdb_test "restart 3" "Switching to .*c == EOF.*" "restart 3 two"
 184 gdb_test "continue" ".*" ""
 185 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 3 one"
 186 gdb_test "step" "if .c == EOF.*" "step in 3 two"
 187 gdb_test "print lines" " = 522.*" "verify lines 3 two"
 188
 189 gdb_test "restart 4" "Switching to .*c == EOF.*" "restart 4 two"
 190 gdb_test "continue" ".*" ""
 191 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 4 one"
 192 gdb_test "step" "if .c == EOF.*" "step in 4 two"
 193 gdb_test "print lines" " = 532.*" "verify lines 4 two"
 194
 195 gdb_test "restart 5" "Switching to .*c == EOF.*" "restart 5 two"
 196 gdb_test "continue" ".*" ""
 197 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 5 one"
 198 gdb_test "step" "if .c == EOF.*" "step in 5 two"
 199 gdb_test "print lines" " = 1042.*" "verify lines 5 two"
 200
 201 gdb_test "restart 6" "Switching to .*c == EOF.*" "restart 6 two"
 202 gdb_test "continue" ".*" ""
 203 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 6 one"
 204 gdb_test "step" "if .c == EOF.*" "step in 6 two"
 205 gdb_test "print lines" " = 1052.*" "verify lines 5 two"
 206
 207 gdb_test "restart 7" "Switching to .*c == EOF.*" "restart 7 two"
 208 gdb_test "continue" ".*" ""
 209 gdb_test "continue 1100" "breakpoint 1.*" "breakpoint 1 7 one"
 210 gdb_test "step" "if .c == EOF.*" "step in 7 two"
 211 gdb_test "print lines" " = 1162.*" "verify lines 7 two"
 212
 213 gdb_test "shell diff -s pi.txt copy1.txt" \
 214     "Files pi.txt and copy1.txt are identical.*" \
 215     "Diff input and output two"
 216
 217 #
 218 # OK, now allow the original program to delete the output file,
 219 # and verify that the checkpoints can still write to it.
 220 #
 221
 222 gdb_test "restart 0" "Switching to .*breakpoint 3.*" "restart 0 one"
 223 gdb_breakpoint $break4_loc
 224 gdb_test "continue" "breakpoint 4.*" "break4 one"
 225
 226 gdb_test "shell diff pi.txt copy1.txt" \
 227     "diff: copy1.txt: No such file or directory" \
 228     "delete copy1"
 229
 230 delete_breakpoints
 231 gdb_breakpoint $break2_loc
 232
 233 gdb_test "restart 1" "if .c == EOF.*" "restart 1 three"
 234 gdb_test "continue" "breakpoint 2.*" "break2 1 one"
 235 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 1"
 236
 237 gdb_test "restart 2" "if .c == EOF.*" "restart 1 three"
 238 gdb_test "continue" "breakpoint 2.*" "break2 2 one"
 239 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 2"
 240
 241 gdb_test "restart 3" "if .c == EOF.*" "restart 1 three"
 242 gdb_test "continue" "breakpoint 2.*" "break2 3 one"
 243 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 3"
 244
 245 gdb_test "restart 4" "if .c == EOF.*" "restart 1 three"
 246 gdb_test "continue" "breakpoint 2.*" "break2 4 one"
 247 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 4"
 248
 249 gdb_test "restart 5" "if .c == EOF.*" "restart 1 three"
 250 gdb_test "continue" "breakpoint 2.*" "break2 5 one"
 251 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 5"
 252
 253 gdb_test "restart 6" "if .c == EOF.*" "restart 1 three"
 254 gdb_test "continue" "breakpoint 2.*" "break2 6 one"
 255 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 6"
 256
 257 gdb_test "restart 7" "if .c == EOF.*" "restart 1 three"
 258 gdb_test "continue" "breakpoint 2.*" "break2 7 one"
 259 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 7"
 260
 261 gdb_test "restart 8" "if .c == EOF.*" "restart 1 three"
 262 gdb_test "continue" "breakpoint 2.*" "break2 8 one"
 263 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 8"
 264
 265 gdb_test "restart 9" "if .c == EOF.*" "restart 1 three"
 266 gdb_test "continue" "breakpoint 2.*" "break2 9 one"
 267 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 9"
 268
 269 gdb_test "restart 10" "if .c == EOF.*" "restart 1 three"
 270 gdb_test "continue" "breakpoint 2.*" "break2 10 one"
 271 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 10"
 272
 273 #
 274 # Now confirm that if one fork exits, we automatically switch to another one.
 275 #
 276
 277 delete_breakpoints
 278 gdb_test "continue" \
 279     "Deleting copy.*Program exited normally.*Switching to.*" \
 280     "Exit, dropped into next fork one"
 281
 282 gdb_test "continue" \
 283     "Deleting copy.*Program exited normally.*Switching to.*" \
 284     "Exit, dropped into next fork two"
 285
 286 gdb_test "continue" \
 287     "Deleting copy.*Program exited normally.*Switching to.*" \
 288     "Exit, dropped into next fork three"
 289
 290 gdb_test "continue" \
 291     "Deleting copy.*Program exited normally.*Switching to.*" \
 292     "Exit, dropped into next fork four"
 293
 294 gdb_test "continue" \
 295     "Deleting copy.*Program exited normally.*Switching to.*" \
 296     "Exit, dropped into next fork five"
 297
 298 #
 299 # There should be still at least five forks left
 300 #
 301
 302 gdb_test "info checkpoints" " 5 .* 4 .* 3 .* 2 .* 1 .*" \
 303     "info checkpoints two"
 304
 305 #
 306 # Kill should now terminate all of them.
 307 #
 308
 309 gdb_test "kill" "" "kill all one" \
 310     "Kill the program being debugged.*y or n. $" "y"
 311
 312 #
 313 # and confirm that all are gone
 314 #
 315
 316 gdb_test "restart 0" "Not found.*" "no more checkpoint 0"
 317 gdb_test "restart 1" "Not found.*" "no more checkpoint 1"
 318 gdb_test "restart 2" "Not found.*" "no more checkpoint 2"
 319 gdb_test "restart 3" "Not found.*" "no more checkpoint 3"
 320 gdb_test "restart 4" "Not found.*" "no more checkpoint 4"
 321 gdb_test "restart 5" "Not found.*" "no more checkpoint 5"
 322 gdb_test "restart 6" "Not found.*" "no more checkpoint 6"
 323 gdb_test "restart 7" "Not found.*" "no more checkpoint 7"
 324 gdb_test "restart 8" "Not found.*" "no more checkpoint 8"
 325 gdb_test "restart 9" "Not found.*" "no more checkpoint 9"
 326 gdb_test "restart 10" "Not found.*" "no more checkpoint 10"
 327
 328 #
 329 # Now let's try setting a large number of checkpoints (>600)
 330 #
 331
 332 gdb_exit
 333 gdb_start
 334 gdb_reinitialize_dir $srcdir/$subdir
 335 gdb_load ${binfile}
 336
 337 runto_main
 338 gdb_breakpoint $break1_loc
 339
 340 gdb_test "commands\nsilent\nif (lines % 2)\ncheckpoint\nend\n  continue\nend" \
 341     "" \
 342     "set checkpoint breakpoint"
 343
 344 set prev_timeout $timeout
 345 set timeout [expr $timeout + 120]
 346 verbose "Timeout now $timeout sec."
 347
 348 gdb_breakpoint $break2_loc
 349 gdb_test "continue" "breakpoint 2.*" "break2 with many checkpoints"
 350
 351 set count 0
 352 set msg "info checkpoints with at least 600 checkpoints"
 353 gdb_test_multiple "info checkpoints" $msg {
 354     -re "  $decimal process \[^\r\]*\r\n" {
 355         incr count
 356         exp_continue
 357     }
 358     -re "$gdb_prompt $" {
 359         if { $count >= 600 } {
 360             pass $msg
 361         } else {
 362             fail $msg
 363         }
 364     }
 365 }
 366
 367 #
 368 # OK, kill 'em all...
 369 #
 370
 371 gdb_test "kill" "" "kill all one with many checkpoints" \
 372     "Kill the program being debugged.*y or n. $" "y"
 373
 374 # Restore old timeout
 375 set timeout $prev_timeout
 376 verbose "Timeout now $timeout sec."
 377
 378 #
 379 # Finished: cleanup
 380 #
 381
 382 remote_exec build "rm -f pi.txt"