gdb/testsuite/gdb.base/ena-dis-br.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 1997-2013 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 #
  19 # test running programs
  20 #
  21
  22 standard_testfile break.c break1.c
  23
  24 if {[prepare_for_testing ${testfile}.exp ${testfile} \
  25          [list $srcfile $srcfile2] {debug nowarnings}]} {
  26     return -1
  27 }
  28
  29 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  30 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
  31 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile2]
  32 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile2]
  33 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  34 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile2]
  35 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile2]
  36 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile2]
  37 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile2]
  38 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile2]
  39 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile2]
  40
  41 if ![runto_main] then { fail "enable/disable break tests suppressed" }
  42
  43 # Verify that we can set a breakpoint (the location is irrelevant),
  44 # then enable it (yes, it's already enabled by default), then hit it.
  45
  46 proc break_at { breakpoint where } {
  47     global gdb_prompt
  48     global expect_out
  49
  50     set test "break $breakpoint"
  51     set bp 0
  52     gdb_test_multiple "$test" "$test" {
  53         -re "Breakpoint (\[0-9\]*) at .*$where.*$gdb_prompt $" {
  54             set bp $expect_out(1,string)
  55             pass "$test"
  56         }
  57     }
  58     return $bp
  59 }
  60
  61 set bp [break_at "marker1" " line ($bp_location15|$bp_location16)"]
  62
  63 gdb_test_no_output "enable $bp" "enable break marker1"
  64
  65 gdb_test "info break $bp" \
  66     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*" \
  67     "info break marker1"
  68
  69 # See the comments in condbreak.exp for "run until breakpoint at
  70 # marker1" for an explanation of the xfail below.
  71 set test "continue to break marker1"
  72 gdb_test_multiple "continue" "$test" {
  73     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
  74         pass "$test"
  75     }
  76     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
  77         xfail "$test"
  78     }
  79 }
  80
  81 gdb_test_no_output "delete $bp" "delete break marker1"
  82
  83 # Verify that we can set a breakpoint to be self-disabling after the
  84 # first time it triggers.
  85 set bp [break_at "marker2" " line ($bp_location8|$bp_location9)"]
  86
  87 gdb_test_no_output "enable once $bp" "enable once break marker2"
  88
  89 gdb_test "info break $bp" \
  90     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*" \
  91     "info auto-disabled break marker2"
  92
  93 # See the comments in condbreak.exp for "run until breakpoint at
  94 # marker1" for an explanation of the xfail below.
  95 set test "continue to auto-disabled break marker2"
  96 gdb_test_multiple "continue" "$test" {
  97     -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $" {
  98         pass "$test"
  99     }
 100     -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $" {
 101         xfail "$test"
 102     }
 103 }
 104
 105 gdb_test "info break $bp" \
 106     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*" \
 107     "info auto-disabled break marker2"
 108
 109 # Verify that we don't stop at a disabled breakpoint.
 110 gdb_continue_to_end "no stop"
 111 rerun_to_main
 112 gdb_continue_to_end "no stop at auto-disabled break marker2"
 113
 114 # Verify that we can set a breakpoint to be self-deleting after the
 115 # first time it triggers.
 116 if ![runto_main] then {
 117     fail "enable/disable break tests suppressed"
 118 }
 119
 120 set bp [break_at "marker3" " line ($bp_location17|$bp_location18)"]
 121
 122 gdb_test_no_output "enable del $bp" "enable del break marker3"
 123
 124 gdb_test "info break $bp" \
 125     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*" \
 126     "info auto-deleted break marker2"
 127
 128 gdb_test "continue" \
 129     ".*marker3 .*:($bp_location17|$bp_location18).*" \
 130     "continue to auto-deleted break marker3"
 131
 132 gdb_test "info break $bp" \
 133     ".*No breakpoint or watchpoint matching.*" \
 134     "info auto-deleted break marker3"
 135
 136 # Verify that we can set a breakpoint and manually disable it (we've
 137 # already proven that disabled bp's don't trigger).
 138
 139 set bp [break_at "marker4" " line ($bp_location14|$bp_location13).*"]
 140
 141 gdb_test_no_output "disable $bp" "disable break marker4"
 142
 143 gdb_test "info break $bp" \
 144     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*" \
 145     "info break marker4"
 146
 147 if ![runto_main] then {
 148     fail "enable/disable break tests suppressed"
 149 }
 150
 151 # Test enable count by stopping at a location until it is disabled
 152 # and passes through.
 153
 154 set bp [break_at $bp_location7 "line $bp_location7"]
 155
 156 set bp2 [break_at marker1 " line ($bp_location15|$bp_location16)"]
 157
 158 gdb_test_no_output "enable count 2 $bp" "disable break with count"
 159
 160 gdb_test "continue" \
 161     ".*factorial .*:$bp_location7.*" \
 162     "continue from enable count, first time"
 163
 164 gdb_test "continue" \
 165     ".*factorial .*:$bp_location7.*" \
 166     "continue from enable count, second time"
 167
 168 gdb_test "continue" \
 169     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 170     "continue through enable count, now disabled"
 171
 172 # Verify that we can set a breakpoint with an ignore count N, which
 173 # should cause the next N triggers of the bp to be ignored.  (This is
 174 # a flavor of enablement/disablement, after all.)
 175
 176 if ![runto_main] then {
 177     fail "enable/disable break tests suppressed"
 178 }
 179
 180 set bp [break_at "marker1" " line ($bp_location15|$bp_location16).*"]
 181
 182 # Verify that an ignore of a non-existent breakpoint is gracefully
 183 # handled.
 184
 185 gdb_test "ignore 999 2" \
 186     "No breakpoint number 999..*" \
 187     "ignore non-existent break"
 188
 189 # Verify that a missing ignore count is gracefully handled.
 190
 191 gdb_test "ignore $bp" \
 192     "Second argument .specified ignore-count. is missing..*" \
 193     "ignore break with missing ignore count"
 194
 195 # Verify that a negative or zero ignore count is handled gracefully
 196 # (they both are treated the same).
 197
 198 gdb_test "ignore $bp -1" \
 199     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 200     "ignore break marker1 -1"
 201
 202 gdb_test "ignore $bp 0" \
 203     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 204     "ignore break marker1 0"
 205
 206 gdb_test "ignore $bp 1" \
 207     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 208     "ignore break marker1"
 209
 210 gdb_test "info break $bp" \
 211     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*ignore next 1 hits.*" \
 212     "info ignored break marker1"
 213
 214 gdb_continue_to_end "no stop at ignored break marker1"
 215 rerun_to_main
 216
 217 # See the comments in condbreak.exp for "run until breakpoint at marker1"
 218 # for an explanation of the xfail below.
 219 set test "continue to break marker1, 2nd time"
 220 gdb_test_multiple "continue" "$test" {
 221     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
 222         pass "continue to break marker1, 2nd time"
 223     }
 224     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 225         xfail "continue to break marker1, 2nd time"
 226     }
 227 }
 228
 229 # Verify that we can specify both an ignore count and an auto-delete.
 230
 231 if ![runto_main] then {
 232     fail "enable/disable break tests suppressed"
 233 }
 234
 235 set bp [break_at marker1 " line ($bp_location15|$bp_location16).*"]
 236
 237 gdb_test "ignore $bp 1" \
 238     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 239     "ignore break marker1"
 240
 241 gdb_test_no_output "enable del $bp" "enable del break marker1"
 242
 243 gdb_test "info break $bp" \
 244     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*ignore next 1 hits.*" \
 245     "info break marker1"
 246
 247 gdb_continue_to_end "no stop at ignored & auto-deleted break marker1"
 248 rerun_to_main
 249
 250 gdb_test "continue" \
 251     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 252     "continue to ignored & auto-deleted break marker1"
 253
 254 # Verify that a disabled breakpoint's ignore count isn't updated when
 255 # the bp is encountered.
 256
 257 if ![runto_main] then {
 258     fail "enable/disable break tests suppressed"
 259 }
 260
 261 set bp [break_at marker1 " line ($bp_location15|$bp_location16)"]
 262
 263 gdb_test "ignore $bp 10" \
 264     "Will ignore next 10 crossings of breakpoint \[0-9\]*.*" \
 265     "ignore break marker1"
 266
 267 gdb_test_no_output "disable $bp" "disable break marker1"
 268
 269 gdb_continue_to_end "no stop at ignored & disabled break marker1"
 270 rerun_to_main
 271
 272 gdb_test "info break $bp" \
 273     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*ignore next 10 hits.*" \
 274     "info ignored & disabled break marker1"
 275
 276 # Verify that GDB correctly handles the "continue" command with an argument,
 277 # which is an ignore count to set on the currently stopped-at breakpoint.
 278 # (Also verify that GDB gracefully handles the case where the inferior
 279 # isn't stopped at a breakpoint.)
 280 #
 281 if ![runto_main] then { fail "enable/disable break tests suppressed" }
 282
 283 gdb_test "break $bp_location1" \
 284     "Breakpoint \[0-9\]*.*, line $bp_location1.*" \
 285     "prepare to continue with ignore count"
 286
 287 gdb_test "continue 2" \
 288     "Will ignore next crossing of breakpoint \[0-9\]*.  Continuing..*" \
 289     "continue with ignore count"
 290
 291 gdb_test "next" ".*$bp_location11\[ \t\]*marker1.*" \
 292     step after continue with ignore count"
 293
 294 set test "continue with ignore count, not stopped at bpt"
 295 gdb_test_multiple "continue 2" "$test" {
 296     -re "Not stopped at any breakpoint; argument ignored.*$gdb_prompt $" {
 297         pass "$test"
 298     }
 299     -re "No breakpoint number -1.*$gdb_prompt $" {
 300         kfail gdb/1689 "$test"
 301     }
 302 }
 303
 304 # Verify that GDB correctly handles the "enable/disable" command
 305 # with arguments, that include multiple locations.
 306 #
 307 if ![runto_main] then { fail "enable/disable break tests suppressed" }
 308
 309 set b1 0
 310 set b2 0
 311 set b3 0
 312 set b4 0
 313 set b1 [break_at main ""]
 314 set b2 [break_at main ""]
 315 set b3 [break_at main ""]
 316 set b4 [break_at main ""]
 317
 318 # Perform tests for disable/enable commands on multiple
 319 # locations and breakpoints.
 320 #
 321 # WHAT - the command to test (disable/enable).
 322 #
 323 proc test_ena_dis_br { what } {
 324     global b1
 325     global b2
 326     global b3
 327     global b4
 328     global gdb_prompt
 329
 330     # OPPOS    - the command opposite to WHAT.
 331     # WHAT_RES - whether breakpoints are expected to end
 332     #            up enabled or disabled.
 333     # OPPOS_RES- same as WHAT_RES but opposite.
 334     # P1/P2    - proc to call (pass/fail).  Must be
 335     #            opposites.
 336     # Set variable values for disable command.
 337     set oppos "enable"
 338     set oppos_res "y"
 339     set what_res "n"
 340     set p1 "pass"
 341     set p2 "fail"
 342
 343     if { "$what" == "enable" } {
 344         # Set varibale values for enable command.
 345         set oppos "disable"
 346         set oppos_res "n"
 347         set what_res "y"
 348         set p1 "fail"
 349         set p2 "pass"
 350     }
 351
 352     # Now enable(disable) $b.1 $b2.1.
 353     gdb_test_no_output "$what $b1.1 $b2.1" "$what \$b1.1 \$b2.1"
 354     set test1 "${what}d \$b1.1 and \$b2.1"
 355
 356     # Now $b1.1 and $b2.1 should be enabled(disabled).
 357     gdb_test_multiple "info break" "$test1" {
 358        -re "(${b1}.1)(\[^\n\r\]*)( n.*)(${b2}.1)(\[^\n\r\]*)( n.*)$gdb_prompt $" {
 359            $p1 "$test1"
 360        }
 361        -re ".*$gdb_prompt $" {
 362            $p2 "$test1"
 363        }
 364     }
 365
 366     # Now enable(disable) $b1 fooo.1, it should give error on fooo.
 367     gdb_test "$what $b1 fooo.1" \
 368        "Bad breakpoint number 'fooo'" \
 369        "$what \$b1 fooo.1"
 370
 371     # $b1 should be enabled(disabled).
 372     gdb_test "info break" \
 373        "(${b1})(\[^\n\r]*)( $what_res.*)" \
 374        "${what}d \$b1"
 375
 376     gdb_test_no_output "$oppos $b3" "$oppos \$b3"
 377     gdb_test_no_output "$what $b4 $b3.1" "$what \$b4 \$b3.1"
 378     set test1 "${what}d \$b4 and \$b3.1,remain ${oppos}d \$b3"
 379
 380     # Now $b4 $b3.1 should be enabled(disabled) and
 381     # $b3 should remain disabled(enabled).
 382     gdb_test_multiple "info break" "$test1" {
 383        -re "(${b3})(\[^\n\r]*)( $oppos_res.*)(${b3}.1)(\[^\n\r\]*)( n.*)(${b4})(\[^\n\r\]*)( $what_res.*)$gdb_prompt $" {
 384            $p1 "$test1"
 385        }
 386        -re "(${b3})(\[^\n\r]*)( $oppos_res.*)(${b4})(\[^\n\r\]*)( $what_res.*)$gdb_prompt $" {
 387            $p2 "$test1"
 388        }
 389     }
 390
 391     # Now enable(disable) $b4.1 fooobaar and
 392     # it should give warning on fooobaar.
 393     gdb_test "$what $b4.1 fooobaar" \
 394        "warning: bad breakpoint number at or near 'fooobaar'" \
 395        "$what \$b4.1 fooobar"
 396     set test1 "${what}d \$b4.1"
 397
 398     # $b4.1 should be enabled(disabled).
 399     gdb_test_multiple "info break" "$test1" {
 400         -re "(${b4}.1)(\[^\n\r\]*)( n.*)$gdb_prompt $" {
 401            $p1 "$test1"
 402        }
 403        -re ".*$gdb_prompt $" {
 404            $p2 "$test1"
 405        }
 406     }
 407 }
 408
 409 test_ena_dis_br "disable"
 410 test_ena_dis_br "enable"
 411
 412 gdb_exit
 413 return 0