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