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

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 1997-1999, 2003-2004, 2007-2012 Free Software Foundation,
   4 # Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 #
  20 # test running programs
  21 #
  22
  23 set testfile "break"
  24 set srcfile ${testfile}.c
  25 set srcfile1 ${testfile}1.c
  26 set binfile ${objdir}/${subdir}/${testfile}
  27
  28 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  29      untested ena-dis-br.exp
  30      return -1
  31 }
  32
  33 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  34      untested ena-dis-br.exp
  35      return -1
  36 }
  37
  38 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  39      untested ena-dis-br.exp
  40      return -1
  41 }
  42
  43 gdb_exit
  44 gdb_start
  45 gdb_reinitialize_dir $srcdir/$subdir
  46 gdb_load ${binfile}
  47
  48 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  49 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
  50 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
  51 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
  52 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  53 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
  54 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
  55 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
  56 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
  57 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
  58 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
  59
  60 if ![runto_main] then { fail "enable/disable break tests suppressed" }
  61
  62 # Verify that we can set a breakpoint (the location is irrelevant),
  63 # then enable it (yes, it's already enabled by default), then hit it.
  64
  65 proc break_at { breakpoint where } {
  66     global gdb_prompt
  67     global expect_out
  68
  69     set test "break $breakpoint"
  70     set bp 0
  71     gdb_test_multiple "$test" "$test" {
  72         -re "Breakpoint (\[0-9\]*) at .*$where.*$gdb_prompt $" {
  73             set bp $expect_out(1,string)
  74             pass "$test"
  75         }
  76     }
  77     return $bp
  78 }
  79
  80 set bp [break_at "marker1" " line ($bp_location15|$bp_location16)"]
  81
  82 gdb_test_no_output "enable $bp" "enable break marker1"
  83
  84 gdb_test "info break $bp" \
  85     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*" \
  86     "info break marker1"
  87
  88 # See the comments in condbreak.exp for "run until breakpoint at
  89 # marker1" for an explanation of the xfail below.
  90 set test "continue to break marker1"
  91 gdb_test_multiple "continue" "$test" {
  92     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
  93         pass "$test"
  94     }
  95     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
  96         xfail "$test"
  97     }
  98 }
  99
 100 gdb_test_no_output "delete $bp" "delete break marker1"
 101
 102 # Verify that we can set a breakpoint to be self-disabling after the
 103 # first time it triggers.
 104 set bp [break_at "marker2" " line ($bp_location8|$bp_location9)"]
 105
 106 gdb_test_no_output "enable once $bp" "enable once break marker2"
 107
 108 gdb_test "info break $bp" \
 109     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*" \
 110     "info auto-disabled break marker2"
 111
 112 # See the comments in condbreak.exp for "run until breakpoint at
 113 # marker1" for an explanation of the xfail below.
 114 set test "continue to auto-disabled break marker2"
 115 gdb_test_multiple "continue" "$test" {
 116     -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $" {
 117         pass "$test"
 118     }
 119     -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $" {
 120         xfail "$test"
 121     }
 122 }
 123
 124 gdb_test "info break $bp" \
 125     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*" \
 126     "info auto-disabled break marker2"
 127
 128 # Verify that we don't stop at a disabled breakpoint.
 129 gdb_continue_to_end "no stop"
 130 rerun_to_main
 131 gdb_continue_to_end "no stop at auto-disabled break marker2"
 132
 133 # Verify that we can set a breakpoint to be self-deleting after the
 134 # first time it triggers.
 135 if ![runto_main] then {
 136     fail "enable/disable break tests suppressed"
 137 }
 138
 139 set bp [break_at "marker3" " line ($bp_location17|$bp_location18)"]
 140
 141 gdb_test_no_output "enable del $bp" "enable del break marker3"
 142
 143 gdb_test "info break $bp" \
 144     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*" \
 145     "info auto-deleted break marker2"
 146
 147 gdb_test "continue" \
 148     ".*marker3 .*:($bp_location17|$bp_location18).*" \
 149     "continue to auto-deleted break marker3"
 150
 151 gdb_test "info break $bp" \
 152     ".*No breakpoint or watchpoint matching.*" \
 153     "info auto-deleted break marker3"
 154
 155 # Verify that we can set a breakpoint and manually disable it (we've
 156 # already proven that disabled bp's don't trigger).
 157
 158 set bp [break_at "marker4" " line ($bp_location14|$bp_location13).*"]
 159
 160 gdb_test_no_output "disable $bp" "disable break marker4"
 161
 162 gdb_test "info break $bp" \
 163     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*" \
 164     "info break marker4"
 165
 166 if ![runto_main] then {
 167     fail "enable/disable break tests suppressed"
 168 }
 169
 170 # Test enable count by stopping at a location until it is disabled
 171 # and passes through.
 172
 173 set bp [break_at $bp_location7 "line $bp_location7"]
 174
 175 set bp2 [break_at marker1 " line ($bp_location15|$bp_location16)"]
 176
 177 gdb_test_no_output "enable count 2 $bp" "disable break with count"
 178
 179 gdb_test "continue" \
 180     ".*factorial .*:$bp_location7.*" \
 181     "continue from enable count, first time"
 182
 183 gdb_test "continue" \
 184     ".*factorial .*:$bp_location7.*" \
 185     "continue from enable count, second time"
 186
 187 gdb_test "continue" \
 188     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 189     "continue through enable count, now disabled"
 190
 191 # Verify that we can set a breakpoint with an ignore count N, which
 192 # should cause the next N triggers of the bp to be ignored.  (This is
 193 # a flavor of enablement/disablement, after all.)
 194
 195 if ![runto_main] then {
 196     fail "enable/disable break tests suppressed"
 197 }
 198
 199 set bp [break_at "marker1" " line ($bp_location15|$bp_location16).*"]
 200
 201 # Verify that an ignore of a non-existent breakpoint is gracefully
 202 # handled.
 203
 204 gdb_test "ignore 999 2" \
 205     "No breakpoint number 999..*" \
 206     "ignore non-existent break"
 207
 208 # Verify that a missing ignore count is gracefully handled.
 209
 210 gdb_test "ignore $bp" \
 211     "Second argument .specified ignore-count. is missing..*" \
 212     "ignore break with missing ignore count"
 213
 214 # Verify that a negative or zero ignore count is handled gracefully
 215 # (they both are treated the same).
 216
 217 gdb_test "ignore $bp -1" \
 218     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 219     "ignore break marker1 -1"
 220
 221 gdb_test "ignore $bp 0" \
 222     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 223     "ignore break marker1 0"
 224
 225 gdb_test "ignore $bp 1" \
 226     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 227     "ignore break marker1"
 228
 229 gdb_test "info break $bp" \
 230     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*ignore next 1 hits.*" \
 231     "info ignored break marker1"
 232
 233 gdb_continue_to_end "no stop at ignored break marker1"
 234 rerun_to_main
 235
 236 # See the comments in condbreak.exp for "run until breakpoint at marker1"
 237 # for an explanation of the xfail below.
 238 set test "continue to break marker1, 2nd time"
 239 gdb_test_multiple "continue" "$test" {
 240     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
 241         pass "continue to break marker1, 2nd time"
 242     }
 243     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 244         xfail "continue to break marker1, 2nd time"
 245     }
 246 }
 247
 248 # Verify that we can specify both an ignore count and an auto-delete.
 249
 250 if ![runto_main] then {
 251     fail "enable/disable break tests suppressed"
 252 }
 253
 254 set bp [break_at marker1 " line ($bp_location15|$bp_location16).*"]
 255
 256 gdb_test "ignore $bp 1" \
 257     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 258     "ignore break marker1"
 259
 260 gdb_test_no_output "enable del $bp" "enable del break marker1"
 261
 262 gdb_test "info break $bp" \
 263     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*ignore next 1 hits.*" \
 264     "info break marker1"
 265
 266 gdb_continue_to_end "no stop at ignored & auto-deleted break marker1"
 267 rerun_to_main
 268
 269 gdb_test "continue" \
 270     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 271     "continue to ignored & auto-deleted break marker1"
 272
 273 # Verify that a disabled breakpoint's ignore count isn't updated when
 274 # the bp is encountered.
 275
 276 if ![runto_main] then {
 277     fail "enable/disable break tests suppressed"
 278 }
 279
 280 set bp [break_at marker1 " line ($bp_location15|$bp_location16)"]
 281
 282 gdb_test "ignore $bp 10" \
 283     "Will ignore next 10 crossings of breakpoint \[0-9\]*.*" \
 284     "ignore break marker1"
 285
 286 gdb_test_no_output "disable $bp" "disable break marker1"
 287
 288 gdb_continue_to_end "no stop at ignored & disabled break marker1"
 289 rerun_to_main
 290
 291 gdb_test "info break $bp" \
 292     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*ignore next 10 hits.*" \
 293     "info ignored & disabled break marker1"
 294
 295 # Verify that GDB correctly handles the "continue" command with an argument,
 296 # which is an ignore count to set on the currently stopped-at breakpoint.
 297 # (Also verify that GDB gracefully handles the case where the inferior
 298 # isn't stopped at a breakpoint.)
 299 #
 300 if ![runto_main] then { fail "enable/disable break tests suppressed" }
 301
 302 gdb_test "break $bp_location1" \
 303     "Breakpoint \[0-9\]*.*, line $bp_location1.*" \
 304     "prepare to continue with ignore count"
 305
 306 gdb_test "continue 2" \
 307     "Will ignore next crossing of breakpoint \[0-9\]*.  Continuing..*" \
 308     "continue with ignore count"
 309
 310 gdb_test "next" ".*$bp_location11\[ \t\]*marker1.*" \
 311     step after continue with ignore count"
 312
 313 set test "continue with ignore count, not stopped at bpt"
 314 gdb_test_multiple "continue 2" "$test" {
 315     -re "Not stopped at any breakpoint; argument ignored.*$gdb_prompt $" {
 316         pass "$test"
 317     }
 318     -re "No breakpoint number -1.*$gdb_prompt $" {
 319         kfail gdb/1689 "$test"
 320     }
 321 }
 322
 323 gdb_exit
 324 return 0