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

   1 # Copyright (C) 2010 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 # Start with a fresh gdb.
  32 clean_restart ${testfile}
  33
  34 # Skip all tests if Python scripting is not enabled.
  35 if { [skip_python_tests] } { continue }
  36
  37 if ![runto_main] then {
  38     fail "Cannot run to main."
  39     return 0
  40 }
  41
  42 global hex decimal
  43
  44 # Initially there should be one breakpoint: main.
  45
  46 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  47 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  48 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  49
  50 gdb_breakpoint [gdb_get_line_number "Break at multiply."]
  51 gdb_continue_to_breakpoint "Break at multiply."
  52
  53 # Check that the Python breakpoint code noted the addition of a
  54 # breakpoint "behind the scenes".
  55 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  56 gdb_test "python print len(blist)" "2" "Check for two breakpoints"
  57 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  58 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  59 gdb_test "python print blist\[1\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  60 gdb_test "python print blist\[1\].location" "py-breakpoint\.c:41*" "Check breakpoint location"
  61
  62 # Check hit and ignore counts.
  63 gdb_test "python print blist\[1\].hit_count" "1" "Check breakpoint hit count"
  64 gdb_py_test_silent_cmd "python blist\[1\].ignore_count = 4" "Set breakpoint hit count" 0
  65 gdb_continue_to_breakpoint "Break at multiply."
  66 gdb_test "python print blist\[1\].hit_count" "6" "Check breakpoint hit count"
  67 gdb_test "print result" "545" "Check expected variable result after 6 iterations"
  68
  69 # Test breakpoint is enabled and disabled correctly..
  70 gdb_breakpoint [gdb_get_line_number "Break at add."]
  71 gdb_continue_to_breakpoint "Break at add."
  72 gdb_test "python print blist\[1\].enabled" "True" "Check breakpoint enabled."
  73 gdb_py_test_silent_cmd  "python blist\[1\].enabled = False" "Set breakpoint disabled." 0
  74 gdb_continue_to_breakpoint "Break at add."
  75 gdb_py_test_silent_cmd  "python blist\[1\].enabled = True" "Set breakpoint enabled." 0
  76 gdb_continue_to_breakpoint "Break at multiply."
  77
  78 # Test other getters and setters.
  79 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  80 gdb_test "python print blist\[1\].thread" "None" "Check breakpoint thread"
  81 gdb_test "python print blist\[1\].type == gdb.BP_BREAKPOINT" "True" "Check breakpoint type"
  82 gdb_test "python print blist\[0\].number" "1" "Check breakpoint number"
  83 gdb_test "python print blist\[1\].number" "2" "Check breakpoint number"
  84 gdb_test "python print blist\[2\].number" "3" "Check breakpoint number"
  85
  86 # Start with a fresh gdb.
  87 clean_restart ${testfile}
  88
  89 if ![runto_main] then {
  90     fail "Cannot run to main."
  91     return 0
  92 }
  93
  94 # Test conditional setting.
  95 set bp_location1 [gdb_get_line_number "Break at multiply."]
  96 gdb_py_test_silent_cmd  "python bp1 = gdb.Breakpoint (\"$bp_location1\")" "Set breakpoint" 0
  97 gdb_continue_to_breakpoint "Break at multiply."
  98 gdb_py_test_silent_cmd  "python bp1.condition = \"i == 5\"" "Set breakpoint" 0
  99 gdb_test "python print bp1.condition" "i == 5" "Test conditional has been set"
 100 gdb_continue_to_breakpoint "Break at multiply."
 101 gdb_test "print i" "5" "Test conditional breakpoint stopped after five iterations"
 102 gdb_py_test_silent_cmd  "python bp1.condition = None"  "Clear condition" 0
 103 gdb_test "python print bp1.condition" "None" "Test conditional read"
 104 gdb_continue_to_breakpoint "Break at multiply."
 105 gdb_test "print i" "6" "Test breakpoint stopped after six iterations"
 106
 107 # Test commands.
 108 gdb_breakpoint [gdb_get_line_number "Break at add."]
 109 set test {commands $bpnum}
 110 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 111 set test {print "Command for breakpoint has been executed."}
 112 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 113 set test {print result}
 114 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 115 gdb_test "end"
 116
 117 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
 118 gdb_test "python print blist\[len(blist)-1\].commands" "print \"Command for breakpoint has been executed.\".*print result"
 119
 120 # Watchpoints
 121 # Start with a fresh gdb.
 122 clean_restart ${testfile}
 123
 124 # Disable hardware watchpoints if necessary.
 125 if [target_info exists gdb,no_hardware_watchpoints] {
 126     gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 127 }
 128
 129 if ![runto_main] then {
 130     fail "Cannot run to main."
 131     return 0
 132 }
 133
 134 gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE )" "Set watchpoint" 0
 135 gdb_test "continue" ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*main.*" "Test watchpoint write"
 136
 137
 138