gnu/dist/gdb6/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}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  38      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  39 }
  40
  41 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  42      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  43 }
  44
  45 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  46      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  47 }
  48
  49 gdb_exit
  50 gdb_start
  51 gdb_reinitialize_dir $srcdir/$subdir
  52 gdb_load ${binfile}
  53
  54 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  55 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
  56 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
  57 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
  58 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
  59 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
  60 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
  61 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
  62 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
  63 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
  64
  65 if ![runto_main] then { fail "enable/disable break tests suppressed" }
  66
  67 # Verify that we can set a breakpoint (the location is irrelevant),
  68 # then enable it (yes, it's already enabled by default), then hit it.
  69
  70 proc break_at { breakpoint where } {
  71     global gdb_prompt
  72     global expect_out
  73
  74     set test "break $breakpoint"
  75     set bp 0
  76     gdb_test_multiple "$test" "$test" {
  77         -re "Breakpoint (\[0-9\]*) at .*$where.*$gdb_prompt $" {
  78             set bp $expect_out(1,string)
  79             pass "$test"
  80         }
  81     }
  82     return $bp
  83 }
  84
  85 set bp [break_at "marker1" " line ($bp_location15|$bp_location16)"]
  86
  87 gdb_test "enable $bp" "" "enable break marker1"
  88
  89 gdb_test "info break $bp" \
  90     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*" \
  91     "info break marker1"
  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 break marker1"
  96 gdb_test_multiple "continue" "$test" {
  97     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
  98         pass "$test"
  99     }
 100     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 101         xfail "$test"
 102     }
 103 }
 104
 105 gdb_test "delete $bp" "" "delete break marker1"
 106
 107 # Verify that we can set a breakpoint to be self-disabling after the
 108 # first time it triggers.
 109 set bp [break_at "marker2" " line ($bp_location8|$bp_location9)"]
 110
 111 gdb_test "enable once $bp" "" "enable once break marker2"
 112
 113 gdb_test "info break $bp" \
 114     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*" \
 115     "info auto-disabled break marker2"
 116
 117 # See the comments in condbreak.exp for "run until breakpoint at
 118 # marker1" for an explanation of the xfail below.
 119 set test "continue to auto-disabled break marker2"
 120 gdb_test_multiple "continue" "$test" {
 121     -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $" {
 122         pass "$test"
 123     }
 124     -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $" {
 125         xfail "$test"
 126     }
 127 }
 128
 129 gdb_test "info break $bp" \
 130     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*" \
 131     "info auto-disabled break marker2"
 132
 133 # Verify that we don't stop at a disabled breakpoint.
 134 gdb_continue_to_end "no stop"
 135 rerun_to_main
 136 gdb_continue_to_end "no stop at auto-disabled break marker2"
 137
 138 # Verify that we can set a breakpoint to be self-deleting after the
 139 # first time it triggers.
 140 if ![runto_main] then {
 141     fail "enable/disable break tests suppressed"
 142 }
 143
 144 set bp [break_at "marker3" " line ($bp_location17|$bp_location18)"]
 145
 146 gdb_test "enable del $bp" "" "enable del break marker3"
 147
 148 gdb_test "info break $bp" \
 149     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*" \
 150     "info auto-deleted break marker2"
 151
 152 gdb_test "continue" \
 153     ".*marker3 .*:($bp_location17|$bp_location18).*" \
 154     "continue to auto-deleted break marker3"
 155
 156 gdb_test "info break $bp" \
 157     ".*No breakpoint or watchpoint number.*" \
 158     "info auto-deleted break marker3"
 159
 160 # Verify that we can set a breakpoint and manually disable it (we've
 161 # already proven that disabled bp's don't trigger).
 162
 163 set bp [break_at "marker4" " line ($bp_location14|$bp_location13).*"]
 164
 165 gdb_test "disable $bp" "" "disable break marker4"
 166
 167 gdb_test "info break $bp" \
 168     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*" \
 169     "info break marker4"
 170
 171 # Verify that we can set a breakpoint with an ignore count N, which
 172 # should cause the next N triggers of the bp to be ignored.  (This is
 173 # a flavor of enablement/disablement, after all.)
 174
 175 if ![runto_main] then {
 176     fail "enable/disable break tests suppressed"
 177 }
 178
 179 set bp [break_at "marker1" " line ($bp_location15|$bp_location16).*"]
 180
 181 # Verify that an ignore of a non-existent breakpoint is gracefully
 182 # handled.
 183
 184 gdb_test "ignore 999 2" \
 185     "No breakpoint number 999..*" \
 186     "ignore non-existent break"
 187
 188 # Verify that a missing ignore count is gracefully handled.
 189
 190 gdb_test "ignore $bp" \
 191     "Second argument .specified ignore-count. is missing..*" \
 192     "ignore break with missing ignore count"
 193
 194 # Verify that a negative or zero ignore count is handled gracefully
 195 # (they both are treated the same).
 196
 197 gdb_test "ignore $bp -1" \
 198     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 199     "ignore break marker1 -1"
 200
 201 gdb_test "ignore $bp 0" \
 202     "Will stop next time breakpoint \[0-9\]* is reached..*" \
 203     "ignore break marker1 0"
 204
 205 gdb_test "ignore $bp 1" \
 206     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 207     "ignore break marker1"
 208
 209 gdb_test "info break $bp" \
 210     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*ignore next 1 hits.*" \
 211     "info ignored break marker1"
 212
 213 gdb_continue_to_end "no stop at ignored break marker1"
 214 rerun_to_main
 215
 216 # See the comments in condbreak.exp for "run until breakpoint at marker1"
 217 # for an explanation of the xfail below.
 218 set test "continue to break marker1, 2nd time"
 219 gdb_test_multiple "continue" "$test" {
 220     -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $" {
 221         pass "continue to break marker1, 2nd time"
 222     }
 223     -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $" {
 224         xfail "continue to break marker1, 2nd time"
 225     }
 226 }
 227
 228 # Verify that we can specify both an ignore count and an auto-delete.
 229
 230 if ![runto_main] then {
 231     fail "enable/disable break tests suppressed"
 232 }
 233
 234 set bp [break_at marker1 " line ($bp_location15|$bp_location16).*"]
 235
 236 gdb_test "ignore $bp 1" \
 237     "Will ignore next crossing of breakpoint \[0-9\]*.*" \
 238     "ignore break marker1"
 239
 240 gdb_test "enable del $bp" "" "enable del break marker1"
 241
 242 gdb_test "info break $bp" \
 243     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*ignore next 1 hits.*" \
 244     "info break marker1"
 245
 246 gdb_continue_to_end "no stop at ignored & auto-deleted break marker1"
 247 rerun_to_main
 248
 249 gdb_test "continue" \
 250     ".*marker1 .*:($bp_location15|$bp_location16).*" \
 251     "continue to ignored & auto-deleted break marker1"
 252
 253 # Verify that a disabled breakpoint's ignore count isn't updated when
 254 # the bp is encountered.
 255
 256 if ![runto_main] then {
 257     fail "enable/disable break tests suppressed"
 258 }
 259
 260 set bp [break_at marker1 " line ($bp_location15|$bp_location16)"]
 261
 262 gdb_test "ignore $bp 10" \
 263     "Will ignore next 10 crossings of breakpoint \[0-9\]*.*" \
 264     "ignore break marker1"
 265
 266 gdb_test "disable $bp" "" "disable break marker1"
 267
 268 gdb_continue_to_end "no stop at ignored & disabled break marker1"
 269 rerun_to_main
 270
 271 gdb_test "info break $bp" \
 272     "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*ignore next 10 hits.*" \
 273     "info ignored & disabled break marker1"
 274
 275 # Verify that GDB correctly handles the "continue" command with an argument,
 276 # which is an ignore count to set on the currently stopped-at breakpoint.
 277 # (Also verify that GDB gracefully handles the case where the inferior
 278 # isn't stopped at a breakpoint.)
 279 #
 280 if ![runto_main] then { fail "enable/disable break tests suppressed" }
 281
 282 gdb_test "break $bp_location1" \
 283     "Breakpoint \[0-9\]*.*, line $bp_location1.*" \
 284     "prepare to continue with ignore count"
 285
 286 gdb_test "continue 2" \
 287     "Will ignore next crossing of breakpoint \[0-9\]*.  Continuing..*" \
 288     "continue with ignore count"
 289
 290 gdb_test "next" ".*$bp_location11\[ \t\]*marker1.*" \
 291     step after continue with ignore count"
 292
 293 set test "continue with ignore count, not stopped at bpt"
 294 gdb_test_multiple "continue 2" "$test" {
 295     -re "Not stopped at any breakpoint; argument ignored.*$gdb_prompt $" {
 296         pass "$test"
 297     }
 298     -re "No breakpoint number -1.*$gdb_prompt $" {
 299         kfail gdb/1689 "$test"
 300     }
 301 }
 302
 303 gdb_exit
 304 return 0