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 set testfile "py-breakpoint"
  24 set srcfile ${testfile}.c
  25 if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
  26     return -1
  27 }
  28
  29 # Run a command in GDB, and report a failure if a Python exception is thrown.
  30 # If report_pass is true, report a pass if no exception is thrown.
  31 proc gdb_py_test_silent_cmd {cmd name report_pass} {
  32     global gdb_prompt
  33
  34   gdb_test_multiple $cmd $name {
  35       -re "Traceback.*$gdb_prompt $"  { fail $name }
  36       -re "$gdb_prompt $"             { if $report_pass { pass $name } }
  37   }
  38 }
  39
  40 # Start with a fresh gdb.
  41 clean_restart ${testfile}
  42
  43 # Skip all tests if Python scripting is not enabled.
  44 if { [skip_python_tests] } { continue }
  45
  46 if ![runto_main] then {
  47     fail "Cannot run to main."
  48     return 0
  49 }
  50
  51 global hex decimal
  52
  53 # Initially there should be one breakpoint: main.
  54
  55 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  56 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  57 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  58
  59 gdb_breakpoint [gdb_get_line_number "Break at multiply."]
  60 gdb_continue_to_breakpoint "Break at multiply."
  61
  62 # Check that the Python breakpoint code noted the addition of a
  63 # breakpoint "behind the scenes".
  64 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  65 gdb_test "python print len(blist)" "2" "Check for two breakpoints"
  66 gdb_test "python print blist\[0\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  67 gdb_test "python print blist\[0\].location" "main." "Check breakpoint location"
  68 gdb_test "python print blist\[1\]" "<gdb.Breakpoint object at $hex>" "Check obj exists"
  69 gdb_test "python print blist\[1\].location" "py-breakpoint\.c:41*" "Check breakpoint location"
  70
  71 # Check hit and ignore counts.
  72 gdb_test "python print blist\[1\].hit_count" "1" "Check breakpoint hit count"
  73 gdb_py_test_silent_cmd "python blist\[1\].ignore_count = 4" "Set breakpoint hit count" 0
  74 gdb_continue_to_breakpoint "Break at multiply."
  75 gdb_test "python print blist\[1\].hit_count" "6" "Check breakpoint hit count"
  76 gdb_test "print result" "545" "Check expected variable result after 6 iterations"
  77
  78 # Test breakpoint is enabled and disabled correctly..
  79 gdb_breakpoint [gdb_get_line_number "Break at add."]
  80 gdb_continue_to_breakpoint "Break at add."
  81 gdb_test "python print blist\[1\].enabled" "True" "Check breakpoint enabled."
  82 gdb_py_test_silent_cmd  "python blist\[1\].enabled = False" "Set breakpoint disabled." 0
  83 gdb_continue_to_breakpoint "Break at add."
  84 gdb_py_test_silent_cmd  "python blist\[1\].enabled = True" "Set breakpoint enabled." 0
  85 gdb_continue_to_breakpoint "Break at multiply."
  86
  87 # Test other getters and setters.
  88 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
  89 gdb_test "python print blist\[1\].thread" "None" "Check breakpoint thread"
  90 gdb_test "python print blist\[1\].type == gdb.BP_BREAKPOINT" "True" "Check breakpoint type"
  91 gdb_test "python print blist\[0\].number" "1" "Check breakpoint number"
  92 gdb_test "python print blist\[1\].number" "2" "Check breakpoint number"
  93 gdb_test "python print blist\[2\].number" "3" "Check breakpoint number"
  94
  95 # Start with a fresh gdb.
  96 clean_restart ${testfile}
  97
  98 if ![runto_main] then {
  99     fail "Cannot run to main."
 100     return 0
 101 }
 102
 103 # Test conditional setting.
 104 set bp_location1 [gdb_get_line_number "Break at multiply."]
 105 gdb_py_test_silent_cmd  "python bp1 = gdb.Breakpoint (\"$bp_location1\")" "Set breakpoint" 0
 106 gdb_continue_to_breakpoint "Break at multiply."
 107 gdb_py_test_silent_cmd  "python bp1.condition = \"i == 5\"" "Set breakpoint" 0
 108 gdb_test "python print bp1.condition" "i == 5" "Test conditional has been set"
 109 gdb_continue_to_breakpoint "Break at multiply."
 110 gdb_test "print i" "5" "Test conditional breakpoint stopped after five iterations"
 111 gdb_py_test_silent_cmd  "python bp1.condition = None"  "Clear condition" 0
 112 gdb_test "python print bp1.condition" "None" "Test conditional read"
 113 gdb_continue_to_breakpoint "Break at multiply."
 114 gdb_test "print i" "6" "Test breakpoint stopped after six iterations"
 115
 116 # Test commands.
 117 gdb_breakpoint [gdb_get_line_number "Break at add."]
 118 set test {commands $bpnum}
 119 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 120 set test {print "Command for breakpoint has been executed."}
 121 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 122 set test {print result}
 123 gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 124 gdb_test "end"
 125
 126 gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" "Get Breakpoint List" 0
 127 gdb_test "python print blist\[len(blist)-1\].commands" "print \"Command for breakpoint has been executed.\".*print result"
 128
 129 # Watchpoints
 130 # Start with a fresh gdb.
 131 clean_restart ${testfile}
 132
 133 # Disable hardware watchpoints if necessary.
 134 if [target_info exists gdb,no_hardware_watchpoints] {
 135     gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 136 }
 137
 138 if ![runto_main] then {
 139     fail "Cannot run to main."
 140     return 0
 141 }
 142
 143 gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE )" "Set watchpoint" 0
 144 gdb_test "continue" ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*main.*" "Test watchpoint write"
 145
 146
 147