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

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 1997, 1998, 1999, 2003, 2004, 2007 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 if $tracelevel then {
  19     strace $tracelevel
  20 }
  21
  22 global usestubs
  23
  24 #
  25 # test running programs
  26 #
  27 set prms_id 0
  28 set bug_id 0
  29
  30 set testfile "break"
  31 set srcfile ${testfile}.c
  32 set srcfile1 ${testfile}1.c
  33 set binfile ${objdir}/${subdir}/${testfile}
  34
  35 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  36      untested ena-dis-br.exp
  37      return -1
  38 }
  39
  40 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  41      untested ena-dis-br.exp
  42      return -1
  43 }
  44
  45 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  46      untested ena-dis-br.exp
  47      return -1
  48 }
  49
  50 gdb_exit
  51 gdb_start
  52 gdb_reinitialize_dir $srcdir/$subdir
  53 gdb_load ${binfile}
  54
  55 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  56 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
  57 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
  58 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  59 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
  60 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
  61 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
  62 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
  63 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
  64 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
  65
  66 if ![runto_main] then { fail "enable/disable break tests suppressed" }
  67
  68 # Verify that we can set a breakpoint (the location is irrelevant),
  69 # then enable it (yes, it's already enabled by default), then hit it.
  70
  71 proc break_at { breakpoint where } {
  72     global gdb_prompt
  73     global expect_out
  74
  75     set test "break $breakpoint"
  76     set bp 0
  77     gdb_test_multiple "$test" "$test" {
  78         -re "Breakpoint (\[0-9\]*) at .*$where.*$gdb_prompt $" {
  79             set bp $expect_out(1,string)
  80             pass "$test"
  81         }
  82     }
  83     return $bp
  84 }
  85
  86 set bp [break_at "marker1" " line ($bp_location15|$bp_location16)"]
  87
  88 gdb_test "enable $bp" "" "enable break marker1"
  89
  90 gdb_test "info break $bp" \
  91     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*" \
  92     "info break marker1"
  93
  94 # See the comments in condbreak.exp for "run until breakpoint at
  95 # marker1" for an explanation of the xfail below.
  96 set test "continue to break marker1"
  97 gdb_test_multiple "continue" "$test" {
  98     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
  99         pass "$test"
 100     }
 101     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 102         xfail "$test"
 103     }
 104 }
 105
 106 gdb_test "delete $bp" "" "delete break marker1"
 107
 108 # Verify that we can set a breakpoint to be self-disabling after the
 109 # first time it triggers.
 110 set bp [break_at "marker2" " line ($bp_location8|$bp_location9)"]
 111
 112 gdb_test "enable once $bp" "" "enable once break marker2"
 113
 114 gdb_test "info break $bp" \
 115     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*" \
 116     "info auto-disabled break marker2"
 117
 118 # See the comments in condbreak.exp for "run until breakpoint at
 119 # marker1" for an explanation of the xfail below.
 120 set test "continue to auto-disabled break marker2"
 121 gdb_test_multiple "continue" "$test" {
 122     -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $" {
 123         pass "$test"
 124     }
 125     -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $" {
 126         xfail "$test"
 127     }
 128 }
 129
 130 gdb_test "info break $bp" \
 131     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*" \
 132     "info auto-disabled break marker2"
 133
 134 # Verify that we don't stop at a disabled breakpoint.
 135 gdb_continue_to_end "no stop"
 136 rerun_to_main
 137 gdb_continue_to_end "no stop at auto-disabled break marker2"
 138
 139 # Verify that we can set a breakpoint to be self-deleting after the
 140 # first time it triggers.
 141 if ![runto_main] then {
 142     fail "enable/disable break tests suppressed"
 143 }
 144
 145 set bp [break_at "marker3" " line ($bp_location17|$bp_location18)"]
 146
 147 gdb_test "enable del $bp" "" "enable del break marker3"
 148
 149 gdb_test "info break $bp" \
 150     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*" \
 151     "info auto-deleted break marker2"
 152
 153 gdb_test "continue" \
 154     ".*marker3 .*:($bp_location17|$bp_location18).*" \
 155     "continue to auto-deleted break marker3"
 156
 157 gdb_test "info break $bp" \
 158     ".*No breakpoint or watchpoint number.*" \
 159     "info auto-deleted break marker3"
 160
 161 # Verify that we can set a breakpoint and manually disable it (we've
 162 # already proven that disabled bp's don't trigger).
 163
 164 set bp [break_at "marker4" " line ($bp_location14|$bp_location13).*"]
 165
 166 gdb_test "disable $bp" "" "disable break marker4"
 167
 168 gdb_test "info break $bp" \
 169     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*" \
 170     "info break marker4"
 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 "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 "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 gdb_exit
 305 return 0