gdb/testsuite/gdb.base/checkpoint.exp

   1 #   Copyright 2005-2017 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 "failed to prepare" $testfile $srcfile \
  40          [list debug "additional_flags=-DPI_TXT=\"$pi_txt\" -DCOPY1_TXT=\"$copy1_txt\""]]} {
  41      return -1
  42 }
  43
  44 global gdb_prompt
  45
  46 #
  47 # This tests gdb checkpoint and restart.
  48 #
  49
  50 runto_main
  51 set break1_loc [gdb_get_line_number "breakpoint 1"]
  52 set break2_loc [gdb_get_line_number "breakpoint 2"]
  53 set break3_loc [gdb_get_line_number "breakpoint 3"]
  54 set break4_loc [gdb_get_line_number "breakpoint 4"]
  55
  56 gdb_breakpoint $break1_loc
  57 gdb_test "continue" "breakpoint 1.*" "break1 start"
  58
  59 gdb_test "checkpoint" ".*" ""
  60 gdb_test "continue 10" "breakpoint 1.*" "break1 two"
  61
  62 gdb_test "checkpoint" ".*" ""
  63 gdb_test "continue 10" "breakpoint 1.*" "break1 three"
  64
  65 gdb_test "checkpoint" ".*" ""
  66 gdb_test "continue 10" "breakpoint 1.*" "break1 four"
  67
  68 gdb_test "checkpoint" ".*" ""
  69 gdb_test "continue 10" "breakpoint 1.*" "break1 five"
  70
  71 gdb_test "checkpoint" ".*" ""
  72 gdb_test "continue 10" "breakpoint 1.*" "break1 six"
  73
  74 gdb_test "checkpoint" ".*" ""
  75 gdb_test "continue 10" "breakpoint 1.*" "break1 seven"
  76
  77 gdb_test "checkpoint" ".*" ""
  78 gdb_test "continue 10" "breakpoint 1.*" "break1 eight"
  79
  80 gdb_test "checkpoint" ".*" ""
  81 gdb_test "continue 10" "breakpoint 1.*" "break1 nine"
  82
  83 gdb_test "checkpoint" ".*" ""
  84 gdb_test "continue 10" "breakpoint 1.*" "break1 ten"
  85
  86 gdb_test "checkpoint" ".*" ""
  87
  88 gdb_test "info checkpoints" \
  89     " 1 .* 2 .* 3 .* 4 .* 5 .* 6 .* 7 .* 8 .* 9 .* 10 .*" \
  90     "info checkpoints one"
  91
  92 delete_breakpoints
  93 gdb_breakpoint $break2_loc
  94 gdb_test "continue" "breakpoint 2.*" "break2 one"
  95
  96 gdb_test "restart 1" "Switching to .*breakpoint 1.*" "restart 1 one"
  97 gdb_test "print i" " = 78" "verify i 1 one"
  98 gdb_test "step" "if .c == EOF.*" "step in 1 one"
  99 gdb_test "print lines" " = 1.*" "verify lines 1 one"
 100
 101 gdb_test "restart 2" "Switching to .*breakpoint 1.*" "restart 2 one"
 102 gdb_test "step" "if .c == EOF.*" "step in 2 one"
 103 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 2 one"
 104 gdb_test "print lines" " = 11.*" "verify lines 2 one"
 105
 106 gdb_test "restart 3" "Switching to .*breakpoint 1.*" "restart 3 one"
 107 gdb_test "step" "if .c == EOF.*" "step in 3 one"
 108 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 3 one"
 109 gdb_test "print lines" " = 21.*" "verify lines 3 one"
 110
 111 gdb_test "restart 4" "Switching to .*breakpoint 1.*" "restart 4 one"
 112 gdb_test "step" "if .c == EOF.*" "step in 4 one"
 113 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 4 one"
 114 gdb_test "print lines" " = 31.*" "verify lines 4 one"
 115
 116 gdb_test "restart 5" "Switching to .*breakpoint 1.*" "restart 5 one"
 117 gdb_test "step" "if .c == EOF.*" "step in 5 one"
 118 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 5 one"
 119 gdb_test "print lines" " = 41.*" "verify lines 5 one"
 120
 121 gdb_test "restart 6" "Switching to .*breakpoint 1.*" "restart 6 one"
 122 gdb_test "step" "if .c == EOF.*" "step in 6 one"
 123 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 6 one"
 124 gdb_test "print lines" " = 51.*" "verify lines 6 one"
 125
 126 gdb_test "restart 7" "Switching to .*breakpoint 1.*" "restart 7 one"
 127 gdb_test "step" "if .c == EOF.*" "step in 7 one"
 128 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 7 one"
 129 gdb_test "print lines" " = 61.*" "verify lines 7 one"
 130
 131 gdb_test "restart 8" "Switching to .*breakpoint 1.*" "restart 8 one"
 132 gdb_test "step" "if .c == EOF.*" "step in 8 one"
 133 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 8 one"
 134 gdb_test "print lines" " = 71.*" "verify lines 8 one"
 135
 136 gdb_test "restart 9" "Switching to .*breakpoint 1.*" "restart 9 one"
 137 gdb_test "step" "if .c == EOF.*" "step in 9 one"
 138 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 9 one"
 139 gdb_test "print lines" " = 81.*" "verify lines 9 one"
 140
 141 gdb_test "restart 10" "Switching to .*breakpoint 1.*" "restart 10 one"
 142 gdb_test "step" "if .c == EOF.*" "step in 10 one"
 143 gdb_test "print i + 1 == lines * 79" " = 1" "verify i 10 one"
 144 gdb_test "print lines" " = 91.*" "verify lines 10 one"
 145
 146 #
 147 # Now let the files be closed by the original process,
 148 # and diff them.
 149
 150 gdb_test "restart 0" "Switching to .*breakpoint 2.*" "restart 0 one"
 151 gdb_breakpoint $break3_loc
 152 gdb_test "continue" "breakpoint 3.*" "break3 one"
 153
 154 gdb_test "shell diff -s $pi_txt $copy1_txt" \
 155     "Files .*pi.txt and .*copy1.txt are identical.*" \
 156     "diff input and output one"
 157
 158 #
 159 # And now run from various checkpoints, allowing
 160 # various amounts of input and output.
 161 #
 162
 163 gdb_breakpoint $break1_loc
 164
 165 gdb_test "restart 1" "Switching to .*c == EOF.*" "restart 1 two"
 166 gdb_test "continue" ".*" ""
 167 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 1 one"
 168 gdb_test "step" "if .c == EOF.*" "step in 1 two"
 169 gdb_test "print lines" " = 102.*" "verify lines 1 two"
 170
 171 gdb_test "restart 2" "Switching to .*c == EOF.*" "restart 2 two"
 172 gdb_test "continue" ".*" ""
 173 gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 2 one"
 174 gdb_test "step" "if .c == EOF.*" "step in 2 two"
 175 gdb_test "print lines" " = 112.*" "verify lines 2 two"
 176
 177 gdb_test "restart 3" "Switching to .*c == EOF.*" "restart 3 two"
 178 gdb_test "continue" ".*" ""
 179 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 3 one"
 180 gdb_test "step" "if .c == EOF.*" "step in 3 two"
 181 gdb_test "print lines" " = 522.*" "verify lines 3 two"
 182
 183 gdb_test "restart 4" "Switching to .*c == EOF.*" "restart 4 two"
 184 gdb_test "continue" ".*" ""
 185 gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 4 one"
 186 gdb_test "step" "if .c == EOF.*" "step in 4 two"
 187 gdb_test "print lines" " = 532.*" "verify lines 4 two"
 188
 189 gdb_test "restart 5" "Switching to .*c == EOF.*" "restart 5 two"
 190 gdb_test "continue" ".*" ""
 191 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 5 one"
 192 gdb_test "step" "if .c == EOF.*" "step in 5 two"
 193 gdb_test "print lines" " = 1042.*" "verify lines 5 two"
 194
 195 gdb_test "restart 6" "Switching to .*c == EOF.*" "restart 6 two"
 196 gdb_test "continue" ".*" ""
 197 gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 6 one"
 198 gdb_test "step" "if .c == EOF.*" "step in 6 two"
 199 gdb_test "print lines" " = 1052.*" "verify lines 5 two"
 200
 201 gdb_test "restart 7" "Switching to .*c == EOF.*" "restart 7 two"
 202 gdb_test "continue" ".*" ""
 203 gdb_test "continue 1100" "breakpoint 1.*" "breakpoint 1 7 one"
 204 gdb_test "step" "if .c == EOF.*" "step in 7 two"
 205 gdb_test "print lines" " = 1162.*" "verify lines 7 two"
 206
 207 gdb_test "shell diff -s $pi_txt $copy1_txt" \
 208     "Files .*pi.txt and .*copy1.txt are identical.*" \
 209     "diff input and output two"
 210
 211 #
 212 # OK, now allow the original program to delete the output file,
 213 # and verify that the checkpoints can still write to it.
 214 #
 215
 216 gdb_test "restart 0" "Switching to .*breakpoint 3.*" "restart 0 one"
 217 gdb_breakpoint $break4_loc
 218 gdb_test "continue" "breakpoint 4.*" "break4 one"
 219
 220 gdb_test "shell diff $pi_txt $copy1_txt" \
 221     "diff: .*copy1.txt: No such file or directory" \
 222     "delete copy1"
 223
 224 delete_breakpoints
 225 gdb_breakpoint $break2_loc
 226
 227 gdb_test "restart 1" "if .c == EOF.*" "restart 1 three"
 228 gdb_test "continue" "breakpoint 2.*" "break2 1 one"
 229 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 1"
 230
 231 gdb_test "restart 2" "if .c == EOF.*" "restart 2 three"
 232 gdb_test "continue" "breakpoint 2.*" "break2 2 one"
 233 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 2"
 234
 235 gdb_test "restart 3" "if .c == EOF.*" "restart 3 three"
 236 gdb_test "continue" "breakpoint 2.*" "break2 3 one"
 237 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 3"
 238
 239 gdb_test "restart 4" "if .c == EOF.*" "restart 4 three"
 240 gdb_test "continue" "breakpoint 2.*" "break2 4 one"
 241 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 4"
 242
 243 gdb_test "restart 5" "if .c == EOF.*" "restart 5 three"
 244 gdb_test "continue" "breakpoint 2.*" "break2 5 one"
 245 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 5"
 246
 247 gdb_test "restart 6" "if .c == EOF.*" "restart 6 three"
 248 gdb_test "continue" "breakpoint 2.*" "break2 6 one"
 249 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 6"
 250
 251 gdb_test "restart 7" "if .c == EOF.*" "restart 7 three"
 252 gdb_test "continue" "breakpoint 2.*" "break2 7 one"
 253 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 7"
 254
 255 gdb_test "restart 8" "if .c == EOF.*" "restart 8 three"
 256 gdb_test "continue" "breakpoint 2.*" "break2 8 one"
 257 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 8"
 258
 259 gdb_test "restart 9" "if .c == EOF.*" "restart 9 three"
 260 gdb_test "continue" "breakpoint 2.*" "break2 9 one"
 261 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 9"
 262
 263 gdb_test "restart 10" "if .c == EOF.*" "restart 10 three"
 264 gdb_test "continue" "breakpoint 2.*" "break2 10 one"
 265 gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 10"
 266
 267 #
 268 # Now confirm that if one fork exits, we automatically switch to another one.
 269 #
 270
 271 delete_breakpoints
 272 gdb_test "continue" \
 273     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 274     "exit, dropped into next fork one"
 275
 276 gdb_test "continue" \
 277     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 278     "exit, dropped into next fork two"
 279
 280 gdb_test "continue" \
 281     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 282     "exit, dropped into next fork three"
 283
 284 gdb_test "continue" \
 285     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 286     "exit, dropped into next fork four"
 287
 288 gdb_test "continue" \
 289     "Deleting copy.*$inferior_exited_re normally.*Switching to.*" \
 290     "exit, dropped into next fork five"
 291
 292 #
 293 # There should be still at least five forks left
 294 #
 295
 296 gdb_test "info checkpoints" " 1 .* 2 .* 3 .* 4 .* 5 .*" \
 297     "info checkpoints two"
 298
 299 #
 300 # Kill should now terminate all of them.
 301 #
 302
 303 gdb_test "kill" "" "kill all one" \
 304     "Kill the program being debugged.*y or n. $" "y"
 305
 306 #
 307 # and confirm that all are gone
 308 #
 309
 310 gdb_test "restart 0" "Not found.*" "no more checkpoint 0"
 311 gdb_test "restart 1" "Not found.*" "no more checkpoint 1"
 312 gdb_test "restart 2" "Not found.*" "no more checkpoint 2"
 313 gdb_test "restart 3" "Not found.*" "no more checkpoint 3"
 314 gdb_test "restart 4" "Not found.*" "no more checkpoint 4"
 315 gdb_test "restart 5" "Not found.*" "no more checkpoint 5"
 316 gdb_test "restart 6" "Not found.*" "no more checkpoint 6"
 317 gdb_test "restart 7" "Not found.*" "no more checkpoint 7"
 318 gdb_test "restart 8" "Not found.*" "no more checkpoint 8"
 319 gdb_test "restart 9" "Not found.*" "no more checkpoint 9"
 320 gdb_test "restart 10" "Not found.*" "no more checkpoint 10"
 321
 322 #
 323 # Now let's try setting a large number of checkpoints (>600)
 324 #
 325
 326 gdb_exit
 327 gdb_start
 328 gdb_reinitialize_dir $srcdir/$subdir
 329 gdb_load ${binfile}
 330
 331 runto_main
 332 gdb_breakpoint $break1_loc
 333
 334 gdb_test "commands\nsilent\nif (lines % 2)\ncheckpoint\nend\n  continue\nend" \
 335     "" \
 336     "set checkpoint breakpoint"
 337
 338 set prev_timeout $timeout
 339 set timeout [expr $timeout + 120]
 340 verbose "Timeout now $timeout sec."
 341
 342 gdb_breakpoint $break2_loc
 343 gdb_test "continue" "breakpoint 2.*" "break2 with many checkpoints"
 344
 345 set count 0
 346 set msg "info checkpoints with at least 600 checkpoints"
 347 gdb_test_multiple "info checkpoints" $msg {
 348     -re "  $decimal process \[^\r\]*\r\n" {
 349         incr count
 350         exp_continue
 351     }
 352     -re "$gdb_prompt $" {
 353         if { $count >= 600 } {
 354             pass $msg
 355         } else {
 356             fail $msg
 357         }
 358     }
 359 }
 360
 361 #
 362 # OK, kill 'em all...
 363 #
 364
 365 gdb_test "kill" "" "kill all one with many checkpoints" \
 366     "Kill the program being debugged.*y or n. $" "y"
 367
 368 # Restore old timeout
 369 set timeout $prev_timeout
 370 verbose "Timeout now $timeout sec."
 371
 372 #
 373 # Finished: cleanup
 374 #