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 2 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, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23 global usestubs
  24
  25 #
  26 # test running programs
  27 #
  28 set prms_id 0
  29 set bug_id 0
  30
  31 set testfile "break"
  32 set srcfile ${testfile}.c
  33 set srcfile1 ${testfile}1.c
  34 set binfile ${objdir}/${subdir}/${testfile}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  37      untested ena-dis-br.exp
  38      return -1
  39 }
  40
  41 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  42      untested ena-dis-br.exp
  43      return -1
  44 }
  45
  46 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  47      untested ena-dis-br.exp
  48      return -1
  49 }
  50
  51 gdb_exit
  52 gdb_start
  53 gdb_reinitialize_dir $srcdir/$subdir
  54 gdb_load ${binfile}
  55
  56 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  57 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
  58 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
  59 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  60 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
  61 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
  62 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
  63 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
  64 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
  65 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
  66
  67 if ![runto_main] then { fail "enable/disable break tests suppressed" }
  68
  69 # Verify that we can set a breakpoint (the location is irrelevant),
  70 # then enable it (yes, it's already enabled by default), then hit it.
  71
  72 proc break_at { breakpoint where } {
  73     global gdb_prompt
  74     global expect_out
  75
  76     set test "break $breakpoint"
  77     set bp 0
  78     gdb_test_multiple "$test" "$test" {
  79         -re "Breakpoint (\[0-9\]*) at .*$where.*$gdb_prompt $" {
  80             set bp $expect_out(1,string)
  81             pass "$test"
  82         }
  83     }
  84     return $bp
  85 }
  86
  87 set bp [break_at "marker1" " line ($bp_location15|$bp_location16)"]
  88
  89 gdb_test "enable $bp" "" "enable break marker1"
  90
  91 gdb_test "info break $bp" \
  92     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*" \
  93     "info break marker1"
  94
  95 # See the comments in condbreak.exp for "run until breakpoint at
  96 # marker1" for an explanation of the xfail below.
  97 set test "continue to break marker1"
  98 gdb_test_multiple "continue" "$test" {
  99     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
 100         pass "$test"
 101     }
 102     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 103         xfail "$test"
 104     }
 105 }
 106
 107 gdb_test "delete $bp" "" "delete break marker1"
 108
 109 # Verify that we can set a breakpoint to be self-disabling after the
 110 # first time it triggers.
 111 set bp [break_at "marker2" " line ($bp_location8|$bp_location9)"]
 112
 113 gdb_test "enable once $bp" "" "enable once break marker2"
 114
 115 gdb_test "info break $bp" \
 116     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*" \
 117     "info auto-disabled break marker2"
 118
 119 # See the comments in condbreak.exp for "run until breakpoint at
 120 # marker1" for an explanation of the xfail below.
 121 set test "continue to auto-disabled break marker2"
 122 gdb_test_multiple "continue" "$test" {
 123     -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $" {
 124         pass "$test"
 125     }
 126     -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $" {
 127         xfail "$test"
 128     }
 129 }
 130
 131 gdb_test "info break $bp" \
 132     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*" \
 133     "info auto-disabled break marker2"
 134
 135 # Verify that we don't stop at a disabled breakpoint.
 136 gdb_continue_to_end "no stop"
 137 rerun_to_main
 138 gdb_continue_to_end "no stop at auto-disabled break marker2"
 139
 140 # Verify that we can set a breakpoint to be self-deleting after the
 141 # first time it triggers.
 142 if ![runto_main] then {
 143     fail "enable/disable break tests suppressed"
 144 }
 145
 146 set bp [break_at "marker3" " line ($bp_location17|$bp_location18)"]
 147
 148 gdb_test "enable del $bp" "" "enable del break marker3"
 149
 150 gdb_test "info break $bp" \
 151     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*" \
 152     "info auto-deleted break marker2"
 153
 154 gdb_test "continue" \
 155     ".*marker3 .*:($bp_location17|$bp_location18).*" \
 156     "continue to auto-deleted break marker3"
 157
 158 gdb_test "info break $bp" \
 159     ".*No breakpoint or watchpoint number.*" \
 160     "info auto-deleted break marker3"
 161
 162 # Verify that we can set a breakpoint and manually disable it (we've
 163 # already proven that disabled bp's don't trigger).
 164
 165 set bp [break_at "marker4" " line ($bp_location14|$bp_location13).*"]
 166
 167 gdb_test "disable $bp" "" "disable break marker4"
 168
 169 gdb_test "info break $bp" \
 170     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*" \
 171     "info break marker4"
 172
 173 # Verify that we can set a breakpoint with an ignore count N, which
 174 # should cause the next N triggers of the bp to be ignored.  (This is
 175 # a flavor of enablement/disablement, after all.)
 176
 177 if ![runto_main] then {
 178     fail "enable/disable break tests suppressed"
 179 }
 180
 181 set bp [break_at "marker1" " line ($bp_location15|$bp_location16).*"]
 182
 183 # Verify that an ignore of a non-existent breakpoint is gracefully
 184 # handled.
 185
 186 gdb_test "ignore 999 2" \
 187     "No breakpoint number 999..*" \
 188     "ignore non-existent break"
 189
 190 # Verify that a missing ignore count is gracefully handled.
 191
 192 gdb_test "ignore $bp" \
 193     "Second argument .specified ignore-count. is missing..*" \
 194     "ignore break with missing ignore count"
 195
 196 # Verify that a negative or zero ignore count is handled gracefully
 197 # (they both are treated the same).
 198
 199 gdb_test "ignore $bp -1" \
 200     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 201     "ignore break marker1 -1"
 202
 203 gdb_test "ignore $bp 0" \
 204     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 205     "ignore break marker1 0"
 206
 207 gdb_test "ignore $bp 1" \
 208     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 209     "ignore break marker1"
 210
 211 gdb_test "info break $bp" \
 212     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*ignore next 1 hits.*" \
 213     "info ignored break marker1"
 214
 215 gdb_continue_to_end "no stop at ignored break marker1"
 216 rerun_to_main
 217
 218 # See the comments in condbreak.exp for "run until breakpoint at marker1"
 219 # for an explanation of the xfail below.
 220 set test "continue to break marker1, 2nd time"
 221 gdb_test_multiple "continue" "$test" {
 222     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
 223         pass "continue to break marker1, 2nd time"
 224     }
 225     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 226         xfail "continue to break marker1, 2nd time"
 227     }
 228 }
 229
 230 # Verify that we can specify both an ignore count and an auto-delete.
 231
 232 if ![runto_main] then {
 233     fail "enable/disable break tests suppressed"
 234 }
 235
 236 set bp [break_at marker1 " line ($bp_location15|$bp_location16).*"]
 237
 238 gdb_test "ignore $bp 1" \
 239     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 240     "ignore break marker1"
 241
 242 gdb_test "enable del $bp" "" "enable del break marker1"
 243
 244 gdb_test "info break $bp" \
 245     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*ignore next 1 hits.*" \
 246     "info break marker1"
 247
 248 gdb_continue_to_end "no stop at ignored & auto-deleted break marker1"
 249 rerun_to_main
 250
 251 gdb_test "continue" \
 252     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 253     "continue to ignored & auto-deleted break marker1"
 254
 255 # Verify that a disabled breakpoint's ignore count isn't updated when
 256 # the bp is encountered.
 257
 258 if ![runto_main] then {
 259     fail "enable/disable break tests suppressed"
 260 }
 261
 262 set bp [break_at marker1 " line ($bp_location15|$bp_location16)"]
 263
 264 gdb_test "ignore $bp 10" \
 265     "Will ignore next 10 crossings of breakpoint \[0-9\]*.*" \
 266     "ignore break marker1"
 267
 268 gdb_test "disable $bp" "" "disable break marker1"
 269
 270 gdb_continue_to_end "no stop at ignored & disabled break marker1"
 271 rerun_to_main
 272
 273 gdb_test "info break $bp" \
 274     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*ignore next 10 hits.*" \
 275     "info ignored & disabled break marker1"
 276
 277 # Verify that GDB correctly handles the "continue" command with an argument,
 278 # which is an ignore count to set on the currently stopped-at breakpoint.
 279 # (Also verify that GDB gracefully handles the case where the inferior
 280 # isn't stopped at a breakpoint.)
 281 #
 282 if ![runto_main] then { fail "enable/disable break tests suppressed" }
 283
 284 gdb_test "break $bp_location1" \
 285     "Breakpoint \[0-9\]*.*, line $bp_location1.*" \
 286     "prepare to continue with ignore count"
 287
 288 gdb_test "continue 2" \
 289     "Will ignore next crossing of breakpoint \[0-9\]*.  Continuing..*" \
 290     "continue with ignore count"
 291
 292 gdb_test "next" ".*$bp_location11\[ \t\]*marker1.*" \
 293     step after continue with ignore count"
 294
 295 set test "continue with ignore count, not stopped at bpt"
 296 gdb_test_multiple "continue 2" "$test" {
 297     -re "Not stopped at any breakpoint; argument ignored.*$gdb_prompt $" {
 298         pass "$test"
 299     }
 300     -re "No breakpoint number -1.*$gdb_prompt $" {
 301         kfail gdb/1689 "$test"
 302     }
 303 }
 304
 305 gdb_exit
 306 return 0