gdb/testsuite/gdb.python/py-breakpoint.exp

   1 # Copyright (C) 2010, 2011 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the GDB testsuite.  It tests the mechanism
  17 # exposing values to Python.
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23 load_lib gdb-python.exp
  24
  25 set testfile "py-breakpoint"
  26 set srcfile ${testfile}.c
  27 if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
  28     return -1
  29 }
  30
  31 # Skip all tests if Python scripting is not enabled.
  32 if { [skip_python_tests] } { continue }
  33
  34 if ![runto_main] then {
  35     fail "Cannot run to main."
  36     return 0
  37 }
  38
  39 global hex decimal
  40
  41 # Initially there should be one breakpoint: main.
  42
  43 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  44 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  45 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  46
  47 gdb_breakpoint [gdb_get_line_number "Break at multiply."]
  48 gdb_continue_to_breakpoint "Break at multiply."
  49
  50 # Check that the Python breakpoint code noted the addition of a
  51 # breakpoint "behind the scenes".
  52 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  53 gdb_test "python print len(blist)" "2" "Check for two breakpoints"
  54 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  55 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  56 gdb_test "python print blist\[1\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  57 gdb_test "python print blist\[1\].location" "py-breakpoint\.c:41*" "Check breakpoint location"
  58
  59 # Check hit and ignore counts.
  60 gdb_test "python print blist\[1\].hit_count" "1" "Check breakpoint hit count"
  61 gdb_py_test_silent_cmd "python blist\[1\].ignore_count = 4" "Set breakpoint hit count" 0
  62 gdb_continue_to_breakpoint "Break at multiply."
  63 gdb_test "python print blist\[1\].hit_count" "6" "Check breakpoint hit count"
  64 gdb_test "print result" " = 545" "Check expected variable result after 6 iterations"
  65
  66 # Test breakpoint is enabled and disabled correctly..
  67 gdb_breakpoint [gdb_get_line_number "Break at add."]
  68 gdb_continue_to_breakpoint "Break at add."
  69 gdb_test "python print blist\[1\].enabled" "True" "Check breakpoint enabled."
  70 gdb_py_test_silent_cmd  "python blist\[1\].enabled = False" "Set breakpoint disabled." 0
  71 gdb_continue_to_breakpoint "Break at add."
  72 gdb_py_test_silent_cmd  "python blist\[1\].enabled = True" "Set breakpoint enabled." 0
  73 gdb_continue_to_breakpoint "Break at multiply."
  74
  75 # Test other getters and setters.
  76 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  77 gdb_test "python print blist\[1\].thread" "None" "Check breakpoint thread"
  78 gdb_test "python print blist\[1\].type == gdb.BP_BREAKPOINT" "True" "Check breakpoint type"
  79 gdb_test "python print blist\[0\].number" "1" "Check breakpoint number"
  80 gdb_test "python print blist\[1\].number" "2" "Check breakpoint number"
  81 gdb_test "python print blist\[2\].number" "3" "Check breakpoint number"
  82
  83 # Start with a fresh gdb.
  84 clean_restart ${testfile}
  85
  86 if ![runto_main] then {
  87     fail "Cannot run to main."
  88     return 0
  89 }
  90
  91 # Test breakpoints are deleted correctly.
  92 set deltst_location [gdb_get_line_number "Break at multiply."]
  93 set end_location [gdb_get_line_number "Break at end."]
  94 gdb_py_test_silent_cmd  "python dp1 = gdb.Breakpoint (\"$deltst_location\")" "Set breakpoint" 0
  95 gdb_breakpoint [gdb_get_line_number "Break at end."]
  96 gdb_py_test_silent_cmd "python del_list = gdb.breakpoints()" "Get Breakpoint List" 0
  97 gdb_test "python print len(del_list)" "3" "Number of breakpoints before delete"
  98 gdb_continue_to_breakpoint "Break at multiply." ".*/$srcfile:$deltst_location.*"
  99 gdb_py_test_silent_cmd  "python dp1.delete()" "Delete Breakpoint" 0
 100 gdb_test "python print dp1.number" "RuntimeError: Breakpoint 2 is invalid.*" "Check breakpoint invalidated"
 101 gdb_py_test_silent_cmd "python del_list = gdb.breakpoints()" "Get Breakpoint List" 0
 102 gdb_test "python print len(del_list)" "2" "Number of breakpoints after delete"
 103 gdb_continue_to_breakpoint "Break at end." ".*/$srcfile:$end_location.*"
 104
 105
 106 # Start with a fresh gdb.
 107 clean_restart ${testfile}
 108
 109 if ![runto_main] then {
 110     fail "Cannot run to main."
 111     return 0
 112 }
 113
 114 # Test conditional setting.
 115 set bp_location1 [gdb_get_line_number "Break at multiply."]
 116 gdb_py_test_silent_cmd  "python bp1 = gdb.Breakpoint (\"$bp_location1\")" "Set breakpoint" 0
 117 gdb_continue_to_breakpoint "Break at multiply."
 118 gdb_py_test_silent_cmd  "python bp1.condition = \"i == 5\"" "Set breakpoint" 0
 119 gdb_test "python print bp1.condition" "i == 5" "Test conditional has been set"
 120 gdb_continue_to_breakpoint "Break at multiply."
 121 gdb_test "print i" "5" "Test conditional breakpoint stopped after five iterations"
 122 gdb_py_test_silent_cmd  "python bp1.condition = None"  "Clear condition" 0
 123 gdb_test "python print bp1.condition" "None" "Test conditional read"
 124 gdb_continue_to_breakpoint "Break at multiply."
 125 gdb_test "print i" "6" "Test breakpoint stopped after six iterations"
 126
 127 # Test commands.
 128 gdb_breakpoint [gdb_get_line_number "Break at add."]
 129 set test {commands $bpnum}
 130 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 131 set test {print "Command for breakpoint has been executed."}
 132 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 133 set test {print result}
 134 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 135 gdb_test "end"
 136
 137 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
 138 gdb_test "python print blist\[len(blist)-1\].commands" "print \"Command for breakpoint has been executed.\".*print result"
 139
 140 # Start with a fresh gdb.
 141 clean_restart ${testfile}
 142
 143 if ![runto_main] then {
 144     fail "Cannot run to main."
 145     return 0
 146 }
 147
 148 # Test invisible breakpoints.
 149 delete_breakpoints
 150 set ibp_location [gdb_get_line_number "Break at multiply."]
 151 gdb_py_test_silent_cmd  "python ibp = gdb.Breakpoint(\"$ibp_location\", internal=False)" "Set invisible breakpoint" 0
 152 gdb_py_test_silent_cmd "python ilist = gdb.breakpoints()" "Get Breakpoint List" 0
 153 gdb_test "python print ilist\[0\]" "<gdb.Breakpoint object at $hex>" "Check invisible bp obj exists"
 154 gdb_test "python print ilist\[0\].location" "py-breakpoint\.c:$ibp_location*" "Check breakpoint location"
 155 gdb_test "python print ilist\[0\].visible" "True" "Check breakpoint visibility"
 156 gdb_test "info breakpoints" "py-breakpoint\.c:$ibp_location.*" "Check info breakpoints shows visible breakpoints"
 157 delete_breakpoints
 158 gdb_py_test_silent_cmd  "python ibp = gdb.Breakpoint(\"$ibp_location\", internal=True)" "Set invisible breakpoint" 0
 159 gdb_py_test_silent_cmd "python ilist = gdb.breakpoints()" "Get Breakpoint List" 0
 160 gdb_test "python print ilist\[0\]" "<gdb.Breakpoint object at $hex>" "Check invisible bp obj exists"
 161 gdb_test "python print ilist\[0\].location" "py-breakpoint\.c:$ibp_location*" "Check breakpoint location"
 162 gdb_test "python print ilist\[0\].visible" "False" "Check breakpoint visibility"
 163 gdb_test "info breakpoints" "No breakpoints or watchpoints.*" "Check info breakpoints does not show invisible breakpoints"
 164 gdb_test "maint info breakpoints" "py-breakpoint\.c:$ibp_location.*" "Check maint info breakpoints shows invisible breakpoints"
 165
 166
 167 # Watchpoints
 168 # Start with a fresh gdb.
 169 clean_restart ${testfile}
 170
 171 # Disable hardware watchpoints if necessary.
 172 if [target_info exists gdb,no_hardware_watchpoints] {
 173     gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 174 }
 175
 176 if ![runto_main] then {
 177     fail "Cannot run to main."
 178     return 0
 179 }
 180
 181 gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE )" "Set watchpoint" 0
 182 gdb_test "continue" ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*main.*" "Test watchpoint write"
 183
 184 # Internal breakpoints.
 185
 186 # Start with a fresh gdb.
 187 clean_restart ${testfile}
 188
 189 if ![runto_main] then {
 190     fail "Cannot run to main."
 191     return 0
 192 }
 193 delete_breakpoints
 194 gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE, internal=True )" "Set watchpoint" 0
 195 gdb_test "info breakpoints" "No breakpoints or watchpoints.*" "Check info breakpoints does not show invisible breakpoints"
 196 gdb_test "maint info breakpoints" ".*watchpoint.*result.*" "Check maint info breakpoints shows invisible breakpoints"
 197 gdb_test "continue" ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*" "Test watchpoint write"