gdb/testsuite/gdb.cp/nextoverthrow.exp

   1 # Copyright 2008-2012 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
  17 if { [skip_cplus_tests] } { continue }
  18
  19 standard_testfile .cc
  20
  21 # Create and source the file that provides information about the compiler
  22 # used to compile the test case.
  23 if [get_compiler_info "c++"] {
  24     untested nextoverthrow.exp
  25     return -1
  26 }
  27
  28 if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
  29     return -1
  30 }
  31
  32 if ![runto_main] then {
  33     perror "couldn't run to main"
  34     continue
  35 }
  36
  37 # See whether we have the needed unwinder hooks.
  38 set ok 1
  39 gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
  40     -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
  41         # Pass the test so we don't get bogus fails in the results.
  42         pass "check for unwinder hook"
  43         set ok 0
  44     }
  45     -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
  46         pass "check for unwinder hook"
  47     }
  48     -re "No symbol .* in current context.\r\n$gdb_prompt $" {
  49         # Pass the test so we don't get bogus fails in the results.
  50         pass "check for unwinder hook"
  51         set ok 0
  52     }
  53 }
  54 if {!$ok} {
  55     gdb_test_multiple "info probe" "check for stap probe in unwinder" {
  56         -re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
  57             pass "check for stap probe in unwinder"
  58             set ok 1
  59         }
  60         -re "\r\n$gdb_prompt $" {
  61         }
  62     }
  63 }
  64
  65 if {!$ok} {
  66     unsupported "nextoverthrow.exp could not find _Unwind_DebugHook"
  67     return -1
  68 }
  69
  70 # Set a temporary breakpoint and then continue to it.
  71 # The breakpoint is set according to a marker in the file.
  72 proc tbreak_and_cont {text} {
  73     global testfile
  74
  75     set line [gdb_get_line_number $text $testfile.cc]
  76     gdb_breakpoint "$testfile.cc:$line" temporary
  77     gdb_test "continue" "Temporary breakpoint.*" "continuing to $text"
  78 }
  79
  80 # Verify the value of testval.
  81 proc verify_testval {name value} {
  82     gdb_test "print testval == $value" " = true" $name
  83 }
  84
  85 # See http://sourceware.org/bugzilla/show_bug.cgi?id=9593
  86 # Our general approach here is to do some operation, verify
  87 # that testval has not changed, continue to the location at
  88 # which the next test starts, and verify testval again.
  89 # This works around platform differences in debuginfo that
  90 # make looking at the source line unreliable.
  91
  92 # A simple test of next over a throw.
  93 tbreak_and_cont "Start: first test"
  94 gdb_test "next" ".*" "next over a throw 1"
  95 tbreak_and_cont "End: first test"
  96 verify_testval "pre-check - next over a throw 1" -1
  97
  98 tbreak_and_cont "Start: nested throw"
  99 verify_testval "post-check - next over a throw 1" 0
 100 gdb_test "next" ".*" "next over a throw 2"
 101 tbreak_and_cont "End: nested throw"
 102 verify_testval "pre-check - next over a throw 2" 0
 103
 104 tbreak_and_cont "Start: step in test"
 105 verify_testval "post-check - next over a throw 2" 1
 106 gdb_test "step" "function1().*" "step into function2 1"
 107 gdb_test "next" ".*" "next over a throw 3"
 108 tbreak_and_cont "End: step in test"
 109 verify_testval "pre-check - next over a throw 3" 1
 110
 111 tbreak_and_cont "Start: next past catch"
 112 verify_testval "post-check - next over a throw 3" 2
 113 gdb_test "next" ".*" "next past catch"
 114 tbreak_and_cont "End: next past catch"
 115 verify_testval "pre-check - next past catch" 2
 116
 117 tbreak_and_cont "Start: rethrow"
 118 verify_testval "post-check - next past catch" 3
 119 gdb_test "next" ".*" "next over a throw 4"
 120 tbreak_and_cont "End: rethrow"
 121 verify_testval "pre-check - next over a throw 4" 3
 122
 123 tbreak_and_cont "Start: first finish"
 124 verify_testval "post-check - next over a throw 4" 4
 125 gdb_test "step" "function1().*" "step into function2 2"
 126 gdb_test "finish" ".*" "finish 1"
 127 tbreak_and_cont "End: first finish"
 128 verify_testval "pre-check - finish 1" 4
 129
 130 tbreak_and_cont "Start: second finish"
 131 verify_testval "post-check - finish 1" 5
 132 gdb_test "step" "function1 ().*" "step into finish method"
 133 gdb_test "finish" ".*" "finish 2"
 134 tbreak_and_cont "End: second finish"
 135 verify_testval "pre-check - finish 2" 5
 136
 137 tbreak_and_cont "Start: first until"
 138 verify_testval "post-check - finish 2" 6
 139 gdb_test "step" ".*" "step into finish, for until"
 140 gdb_test "until" ".*" "until with no argument 1"
 141 set line [gdb_get_line_number "marker for until" $testfile.cc]
 142 gdb_test "until $line" "function1 ().*" "next past catch 6"
 143 gdb_test "until" ".*" "until with no argument 2"
 144 tbreak_and_cont "End: first until"
 145 verify_testval "pre-check - until 1" 6
 146
 147 tbreak_and_cont "Start: second until"
 148 verify_testval "post-check - until 1" 7
 149 set line [gdb_get_line_number "until here" $testfile.cc]
 150 gdb_test "step" "function1 ().*" "step into until"
 151 gdb_test "until $line" ".*" "until-over-throw"
 152 tbreak_and_cont "End: second until"
 153 verify_testval "pre-check - until 2" 7
 154
 155 tbreak_and_cont "Start: advance"
 156 verify_testval "post-check - until 2" 8
 157 gdb_test "step" "function1 ().*" "step into until, for advance"
 158 gdb_test "advance $line" ".*" "advance-over-throw"
 159 tbreak_and_cont "End: advance"
 160 verify_testval "pre-check - advance" 8
 161
 162 tbreak_and_cont "Start: resumebpt"
 163 gdb_test "tbreak _Unwind_RaiseException"
 164 gdb_test "continue" "Temporary breakpoint.*" "continuing to _Unwind_RaiseException"
 165 gdb_test "finish" "Run till exit .*"
 166 gdb_test {set $retpc=$pc}
 167 gdb_test {break *$retpc if dummy ()}
 168 tbreak_and_cont "Second: resumebpt"
 169 gdb_test "next"
 170
 171 tbreak_and_cont "done"
 172 verify_testval "post-check - advance" 10