gdb/testsuite/gdb.cp/nextoverthrow.exp

   1 # Copyright 2008, 2009, 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
  17 if $tracelevel then {
  18     strace $tracelevel
  19 }
  20
  21 if { [skip_cplus_tests] } { continue }
  22
  23 set testfile "nextoverthrow"
  24 set srcfile ${testfile}.cc
  25 set binfile $objdir/$subdir/$testfile
  26
  27 # Create and source the file that provides information about the compiler
  28 # used to compile the test case.
  29 if [get_compiler_info ${binfile} "c++"] {
  30     untested nextoverthrow.exp
  31     return -1
  32 }
  33
  34 if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
  35     return -1
  36 }
  37
  38 if ![runto_main] then {
  39     perror "couldn't run to main"
  40     continue
  41 }
  42
  43 # See whether we have the needed unwinder hooks.
  44 set ok 1
  45 gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
  46     -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
  47         # Pass the test so we don't get bogus fails in the results.
  48         pass "check for unwinder hook"
  49         set ok 0
  50     }
  51     -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
  52         pass "check for unwinder hook"
  53     }
  54     -re "No symbol .* in current context.\r\n$gdb_prompt $" {
  55         # Pass the test so we don't get bogus fails in the results.
  56         pass "check for unwinder hook"
  57         set ok 0
  58     }
  59 }
  60 if {!$ok} {
  61     unsupported "nextoverthrow.exp could not find _Unwind_DebugHook"
  62     return -1
  63 }
  64
  65 # Set a temporary breakpoint and then continue to it.
  66 # The breakpoint is set according to a marker in the file.
  67 proc tbreak_and_cont {text} {
  68     global testfile
  69
  70     set line [gdb_get_line_number $text $testfile.cc]
  71     gdb_breakpoint "$testfile.cc:$line" temporary
  72     gdb_test "continue" "Temporary breakpoint.*" "continuing to $text"
  73 }
  74
  75 # Verify the value of testval.
  76 proc verify_testval {name value} {
  77     gdb_test "print testval == $value" " = true" $name
  78 }
  79
  80 # See http://sourceware.org/bugzilla/show_bug.cgi?id=9593
  81 # Our general approach here is to do some operation, verify
  82 # that testval has not changed, continue to the location at
  83 # which the next test starts, and verify testval again.
  84 # This works around platform differences in debuginfo that
  85 # make looking at the source line unreliable.
  86
  87 # A simple test of next over a throw.
  88 tbreak_and_cont "Start: first test"
  89 gdb_test "next" ".*" "next over a throw 1"
  90 tbreak_and_cont "End: first test"
  91 verify_testval "pre-check - next over a throw 1" -1
  92
  93 tbreak_and_cont "Start: nested throw"
  94 verify_testval "post-check - next over a throw 1" 0
  95 gdb_test "next" ".*" "next over a throw 2"
  96 tbreak_and_cont "End: nested throw"
  97 verify_testval "pre-check - next over a throw 2" 0
  98
  99 tbreak_and_cont "Start: step in test"
 100 verify_testval "post-check - next over a throw 2" 1
 101 gdb_test "step" "function1().*" "step into function2 1"
 102 gdb_test "next" ".*" "next over a throw 3"
 103 tbreak_and_cont "End: step in test"
 104 verify_testval "pre-check - next over a throw 3" 1
 105
 106 tbreak_and_cont "Start: next past catch"
 107 verify_testval "post-check - next over a throw 3" 2
 108 gdb_test "next" ".*" "next past catch"
 109 tbreak_and_cont "End: next past catch"
 110 verify_testval "pre-check - next past catch" 2
 111
 112 tbreak_and_cont "Start: rethrow"
 113 verify_testval "post-check - next past catch" 3
 114 gdb_test "next" ".*" "next over a throw 4"
 115 tbreak_and_cont "End: rethrow"
 116 verify_testval "pre-check - next over a throw 4" 3
 117
 118 tbreak_and_cont "Start: first finish"
 119 verify_testval "post-check - next over a throw 4" 4
 120 gdb_test "step" "function1().*" "step into function2 2"
 121 gdb_test "finish" ".*" "finish 1"
 122 tbreak_and_cont "End: first finish"
 123 verify_testval "pre-check - finish 1" 4
 124
 125 tbreak_and_cont "Start: second finish"
 126 verify_testval "post-check - finish 1" 5
 127 gdb_test "step" "function1 ().*" "step into finish method"
 128 gdb_test "finish" ".*" "finish 2"
 129 tbreak_and_cont "End: second finish"
 130 verify_testval "pre-check - finish 2" 5
 131
 132 tbreak_and_cont "Start: first until"
 133 verify_testval "post-check - finish 2" 6
 134 gdb_test "step" ".*" "step into finish, for until"
 135 gdb_test "until" ".*" "until with no argument 1"
 136 set line [gdb_get_line_number "marker for until" $testfile.cc]
 137 gdb_test "until $line" "function1 ().*" "next past catch 6"
 138 gdb_test "until" ".*" "until with no argument 2"
 139 tbreak_and_cont "End: first until"
 140 verify_testval "pre-check - until 1" 6
 141
 142 tbreak_and_cont "Start: second until"
 143 verify_testval "post-check - until 1" 7
 144 set line [gdb_get_line_number "until here" $testfile.cc]
 145 gdb_test "step" "function1 ().*" "step into until"
 146 gdb_test "until $line" ".*" "until-over-throw"
 147 tbreak_and_cont "End: second until"
 148 verify_testval "pre-check - until 2" 7
 149
 150 tbreak_and_cont "Start: advance"
 151 verify_testval "post-check - until 2" 8
 152 gdb_test "step" "function1 ().*" "step into until, for advance"
 153 gdb_test "advance $line" ".*" "advance-over-throw"
 154 tbreak_and_cont "End: advance"
 155 verify_testval "pre-check - advance" 8
 156
 157 tbreak_and_cont "Start: resumebpt"
 158 gdb_test "tbreak _Unwind_RaiseException"
 159 gdb_test "continue" "Temporary breakpoint.*" "continuing to _Unwind_RaiseException"
 160 gdb_test "finish" "Run till exit .*"
 161 gdb_test {set $retpc=$pc}
 162 gdb_test {break *$retpc if dummy ()}
 163 tbreak_and_cont "Second: resumebpt"
 164 gdb_test "next"
 165
 166 tbreak_and_cont "done"
 167 verify_testval "post-check - advance" 10