gdb/testsuite/gdb.base/checkpoint.exp

   1 #   Copyright 2005-2016 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 { [is_remote target] || ![isnative] } then {
  17     continue
  18 }
  19
  20 # Until "set follow-fork-mode" and "catch fork" are implemented on
  21 # other targets...
  22 #
  23 if {![istarget "*-*-linux*"]} then {
  24     continue
  25 }
  26
  27 # Must name the source file explicitly, otherwise when driven by
  28 # checkpoints-ns.exp, we'd try compiling checkpoints-ns.c, which
  29 # doesn't exist.
  30 standard_testfile checkpoint.c
  31
  32 set pi_txt [gdb_remote_download host ${srcdir}/${subdir}/pi.txt]
  33 if {[is_remote host]} {
  34     set copy1_txt copy1.txt
  35 } else {
  36     set copy1_txt [standard_output_file copy1.txt]
  37 }
  38
  39 if {[prepare_for_testing ${testfile}.exp $testfile $srcfile \
  40          [list debug "additional_flags=-DPI_TXT=\"$pi_txt\" -DCOPY1_TXT=\"$copy1_txt\""]]} {
  41      untested checkpoint.exp
  42      return -1
  43 }
  44
  45 global gdb_prompt
  46
  47 #
  48 # This tests gdb checkpoint and restart.
  49 #
  50
  51 runto_main
  52 set break1_loc [gdb_get_line_number "breakpoint 1"]
  53 set break2_loc [gdb_get_line_number "breakpoint 2"]
  54 set break3_loc [gdb_get_line_number "breakpoint 3"]
  55 set break4_loc [gdb_get_line_number "breakpoint 4"]
  56
  57 gdb_breakpoint $break1_loc
  58 gdb_test "continue" "breakpoint 1.*" "break1 start"
  59
  60 gdb_test "checkpoint" ".*" ""
  61 gdb_test "continue 10" "breakpoint 1.*" "break1 two"
  62
  63 gdb_test "checkpoint" ".*" ""
  64 gdb_test "continue 10" "breakpoint 1.*" "break1 three"
  65
  66 gdb_test "checkpoint" ".*" ""
  67 gdb_test "continue 10" "breakpoint 1.*" "break1 four"
  68
  69 gdb_test "checkpoint" ".*" ""
  70 gdb_test "continue 10" "breakpoint 1.*" "break1 five"
  71
  72 gdb_test "checkpoint" ".*" ""
  73 gdb_test "continue 10" "breakpoint 1.*" "break1 six"
  74
  75 gdb_test "checkpoint" ".*" ""
  76 gdb_test "continue 10" "breakpoint 1.*" "break1 seven"
  77
  78 gdb_test "checkpoint" ".*" ""
  79 gdb_test "continue 10" "breakpoint 1.*" "break1 eight"
  80
  81 gdb_test "checkpoint" ".*" ""
  82 gdb_test "continue 10" "breakpoint 1.*" "break1 nine"
  83
  84 gdb_test "checkpoint" ".*" ""
  85 gdb_test "continue 10" "breakpoint 1.*" "break1 ten"
  86
  87 gdb_test "checkpoint" ".*" ""
  88
  89 gdb_test "info checkpoints" \
  90     " 1 .* 2 .* 3 .* 4 .* 5 .* 6 .* 7 .* 8 .* 9 .* 10 .*" \
  91     "info checkpoints one"
  92
  93 delete_breakpoints
  94 gdb_breakpoint $break2_loc
  95 gdb_test "continue" "breakpoint 2.*" "break2 one"
  96
  97 gdb_test "restart 1" "Switching to .*breakpoint 1.*" "restart 1 one"
  98 gdb_test "print i" " = 78" "verify i 1 one"
  99 gdb_test "step" "if .c == EOF.*" "step in 1 one"
 100 gdb_test "print lines" " = 1.*" "verify lines 1 one"
 101
 102 gdb_test "restart 2" "Switching to .*breakpoint 1.*" "restart 2 one"
 103 gdb_test "step" "if .c == EOF.*" "step in 2 one"
 104 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 2 one"
 105 gdb_test "print lines" " = 11.*" "verify lines 2 one"
 106
 107 gdb_test "restart 3" "Switching to .*breakpoint 1.*" "restart 3 one"
 108 gdb_test "step" "if .c == EOF.*" "step in 3 one"
 109 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 3 one"
 110 gdb_test "print lines" " = 21.*" "verify lines 3 one"
 111
 112 gdb_test "restart 4" "Switching to .*breakpoint 1.*" "restart 4 one"
 113 gdb_test "step" "if .c == EOF.*" "step in 4 one"
 114 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 4 one"
 115 gdb_test "print lines" " = 31.*" "verify lines 4 one"
 116
 117 gdb_test "restart 5" "Switching to .*breakpoint 1.*" "restart 5 one"
 118 gdb_test "step" "if .c == EOF.*" "step in 5 one"
 119 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 5 one"
 120 gdb_test "print lines" " = 41.*" "verify lines 5 one"
 121
 122 gdb_test "restart 6" "Switching to .*breakpoint 1.*" "restart 6 one"
 123 gdb_test "step" "if .c == EOF.*" "step in 6 one"
 124 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 6 one"
 125 gdb_test "print lines" " = 51.*" "verify lines 6 one"
 126
 127 gdb_test "restart 7" "Switching to .*breakpoint 1.*" "restart 7 one"
 128 gdb_test "step" "if .c == EOF.*" "step in 7 one"
 129 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 7 one"
 130 gdb_test "print lines" " = 61.*" "verify lines 7 one"
 131
 132 gdb_test "restart 8" "Switching to .*breakpoint 1.*" "restart 8 one"
 133 gdb_test "step" "if .c == EOF.*" "step in 8 one"
 134 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 8 one"
 135 gdb_test "print lines" " = 71.*" "verify lines 8 one"
 136
 137 gdb_test "restart 9" "Switching to .*breakpoint 1.*" "restart 9 one"
 138 gdb_test "step" "if .c == EOF.*" "step in 9 one"
 139 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 9 one"
 140 gdb_test "print lines" " = 81.*" "verify lines 9 one"
 141
 142 gdb_test "restart 10" "Switching to .*breakpoint 1.*" "restart 10 one"
 143 gdb_test "step" "if .c == EOF.*" "step in 10 one"
 144 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 10 one"
 145 gdb_test "print lines" " = 91.*" "verify lines 10 one"
 146
 147 #
 148 # Now let the files be closed by the original process,
 149 # and diff them.
 150
 151 gdb_test "restart 0" "Switching to .*breakpoint 2.*" "restart 0 one"
 152 gdb_breakpoint $break3_loc
 153 gdb_test "continue" "breakpoint 3.*" "break3 one"
 154
 155 gdb_test "shell diff -s $pi_txt $copy1_txt" \
 156     "Files .*pi.txt and .*copy1.txt are identical.*" \
 157     "diff input and output one"
 158
 159 #
 160 # And now run from various checkpoints, allowing
 161 # various amounts of input and output.
 162 #
 163
 164 gdb_breakpoint $break1_loc
 165
 166 gdb_test "restart 1" "Switching to .*c == EOF.*" "restart 1 two"
 167 gdb_test "continue" ".*" ""
 168 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 1 one"
 169 gdb_test "step" "if .c == EOF.*" "step in 1 two"
 170 gdb_test "print lines" " = 102.*" "verify lines 1 two"
 171
 172 gdb_test "restart 2" "Switching to .*c == EOF.*" "restart 2 two"
 173 gdb_test "continue" ".*" ""
 174 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 2 one"
 175 gdb_test "step" "if .c == EOF.*" "step in 2 two"
 176 gdb_test "print lines" " = 112.*" "verify lines 2 two"
 177
 178 gdb_test "restart 3" "Switching to .*c == EOF.*" "restart 3 two"
 179 gdb_test "continue" ".*" ""
 180 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 3 one"
 181 gdb_test "step" "if .c == EOF.*" "step in 3 two"
 182 gdb_test "print lines" " = 522.*" "verify lines 3 two"
 183
 184 gdb_test "restart 4" "Switching to .*c == EOF.*" "restart 4 two"
 185 gdb_test "continue" ".*" ""
 186 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 4 one"
 187 gdb_test "step" "if .c == EOF.*" "step in 4 two"
 188 gdb_test "print lines" " = 532.*" "verify lines 4 two"
 189
 190 gdb_test "restart 5" "Switching to .*c == EOF.*" "restart 5 two"
 191 gdb_test "continue" ".*" ""
 192 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 5 one"
 193 gdb_test "step" "if .c == EOF.*" "step in 5 two"
 194 gdb_test "print lines" " = 1042.*" "verify lines 5 two"
 195
 196 gdb_test "restart 6" "Switching to .*c == EOF.*" "restart 6 two"
 197 gdb_test "continue" ".*" ""
 198 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 6 one"
 199 gdb_test "step" "if .c == EOF.*" "step in 6 two"
 200 gdb_test "print lines" " = 1052.*" "verify lines 5 two"
 201
 202 gdb_test "restart 7" "Switching to .*c == EOF.*" "restart 7 two"
 203 gdb_test "continue" ".*" ""
 204 gdb_test "continue 1100" "breakpoint 1.*" "breakpoint 1 7 one"
 205 gdb_test "step" "if .c == EOF.*" "step in 7 two"
 206 gdb_test "print lines" " = 1162.*" "verify lines 7 two"
 207
 208 gdb_test "shell diff -s $pi_txt $copy1_txt" \
 209     "Files .*pi.txt and .*copy1.txt are identical.*" \
 210     "diff input and output two"
 211
 212 #
 213 # OK, now allow the original program to delete the output file,
 214 # and verify that the checkpoints can still write to it.
 215 #
 216
 217 gdb_test "restart 0" "Switching to .*breakpoint 3.*" "restart 0 one"
 218 gdb_breakpoint $break4_loc
 219 gdb_test "continue" "breakpoint 4.*" "break4 one"
 220
 221 gdb_test "shell diff $pi_txt $copy1_txt" \
 222     "diff: .*copy1.txt: No such file or directory" \
 223     "delete copy1"
 224
 225 delete_breakpoints
 226 gdb_breakpoint $break2_loc
 227
 228 gdb_test "restart 1" "if .c == EOF.*" "restart 1 three"
 229 gdb_test "continue" "breakpoint 2.*" "break2 1 one"
 230 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 1"
 231
 232 gdb_test "restart 2" "if .c == EOF.*" "restart 2 three"
 233 gdb_test "continue" "breakpoint 2.*" "break2 2 one"
 234 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 2"
 235
 236 gdb_test "restart 3" "if .c == EOF.*" "restart 3 three"
 237 gdb_test "continue" "breakpoint 2.*" "break2 3 one"
 238 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 3"
 239
 240 gdb_test "restart 4" "if .c == EOF.*" "restart 4 three"
 241 gdb_test "continue" "breakpoint 2.*" "break2 4 one"
 242 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 4"
 243
 244 gdb_test "restart 5" "if .c == EOF.*" "restart 5 three"
 245 gdb_test "continue" "breakpoint 2.*" "break2 5 one"
 246 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 5"
 247
 248 gdb_test "restart 6" "if .c == EOF.*" "restart 6 three"
 249 gdb_test "continue" "breakpoint 2.*" "break2 6 one"
 250 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 6"
 251
 252 gdb_test "restart 7" "if .c == EOF.*" "restart 7 three"
 253 gdb_test "continue" "breakpoint 2.*" "break2 7 one"
 254 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 7"
 255
 256 gdb_test "restart 8" "if .c == EOF.*" "restart 8 three"
 257 gdb_test "continue" "breakpoint 2.*" "break2 8 one"
 258 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 8"
 259
 260 gdb_test "restart 9" "if .c == EOF.*" "restart 9 three"
 261 gdb_test "continue" "breakpoint 2.*" "break2 9 one"
 262 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 9"
 263
 264 gdb_test "restart 10" "if .c == EOF.*" "restart 10 three"
 265 gdb_test "continue" "breakpoint 2.*" "break2 10 one"
 266 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 10"
 267
 268 #
 269 # Now confirm that if one fork exits, we automatically switch to another one.
 270 #
 271
 272 delete_breakpoints
 273 gdb_test "continue" \
 274     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 275     "exit, dropped into next fork one"
 276
 277 gdb_test "continue" \
 278     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 279     "exit, dropped into next fork two"
 280
 281 gdb_test "continue" \
 282     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 283     "exit, dropped into next fork three"
 284
 285 gdb_test "continue" \
 286     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 287     "exit, dropped into next fork four"
 288
 289 gdb_test "continue" \
 290     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 291     "exit, dropped into next fork five"
 292
 293 #
 294 # There should be still at least five forks left
 295 #
 296
 297 gdb_test "info checkpoints" " 1 .* 2 .* 3 .* 4 .* 5 .*" \
 298     "info checkpoints two"
 299
 300 #
 301 # Kill should now terminate all of them.
 302 #
 303
 304 gdb_test "kill" "" "kill all one" \
 305     "Kill the program being debugged.*y or n. $" "y"
 306
 307 #
 308 # and confirm that all are gone
 309 #
 310
 311 gdb_test "restart 0" "Not found.*" "no more checkpoint 0"
 312 gdb_test "restart 1" "Not found.*" "no more checkpoint 1"
 313 gdb_test "restart 2" "Not found.*" "no more checkpoint 2"
 314 gdb_test "restart 3" "Not found.*" "no more checkpoint 3"
 315 gdb_test "restart 4" "Not found.*" "no more checkpoint 4"
 316 gdb_test "restart 5" "Not found.*" "no more checkpoint 5"
 317 gdb_test "restart 6" "Not found.*" "no more checkpoint 6"
 318 gdb_test "restart 7" "Not found.*" "no more checkpoint 7"
 319 gdb_test "restart 8" "Not found.*" "no more checkpoint 8"
 320 gdb_test "restart 9" "Not found.*" "no more checkpoint 9"
 321 gdb_test "restart 10" "Not found.*" "no more checkpoint 10"
 322
 323 #
 324 # Now let's try setting a large number of checkpoints (>600)
 325 #
 326
 327 gdb_exit
 328 gdb_start
 329 gdb_reinitialize_dir $srcdir/$subdir
 330 gdb_load ${binfile}
 331
 332 runto_main
 333 gdb_breakpoint $break1_loc
 334
 335 gdb_test "commands\nsilent\nif (lines % 2)\ncheckpoint\nend\n  continue\nend" \
 336     "" \
 337     "set checkpoint breakpoint"
 338
 339 set prev_timeout $timeout
 340 set timeout [expr $timeout + 120]
 341 verbose "Timeout now $timeout sec."
 342
 343 gdb_breakpoint $break2_loc
 344 gdb_test "continue" "breakpoint 2.*" "break2 with many checkpoints"
 345
 346 set count 0
 347 set msg "info checkpoints with at least 600 checkpoints"
 348 gdb_test_multiple "info checkpoints" $msg {
 349     -re "  $decimal process \[^\r\]*\r\n" {
 350         incr count
 351         exp_continue
 352     }
 353     -re "$gdb_prompt $" {
 354         if { $count >= 600 } {
 355             pass $msg
 356         } else {
 357             fail $msg
 358         }
 359     }
 360 }
 361
 362 #
 363 # OK, kill 'em all...
 364 #
 365
 366 gdb_test "kill" "" "kill all one with many checkpoints" \
 367     "Kill the program being debugged.*y or n. $" "y"
 368
 369 # Restore old timeout
 370 set timeout $prev_timeout
 371 verbose "Timeout now $timeout sec."
 372
 373 #
 374 # Finished: cleanup
 375 #