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