gdb/testsuite/gdb.cp/exception.exp

   1 # Copyright 1997-2013 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.
  17 # tests for exception-handling support
  18 # Written by Satish Pai <pai@apollo.hp.com> 1997-07-23
  19 # Rewritten by Michael Chastain <mec.gnu@mindspring.com> 2004-01-08
  20
  21 # This file used to have two copies of the tests with different
  22 # compiler flags for hp-ux.  Instead, the user should set CXXOPTS
  23 # or run runtest with --target_board unix/gdb:debug_flags="..."
  24 # to choose the compiler flags.
  25 #
  26 # The interesting compiler flags are: "aCC +A -Wl,-a,-archive" .
  27 # Static-linked executables use a different mechanism to get the
  28 # address of the notification hook in the C++ support library.
  29
  30 # TODO: this file has many absolute line numbers.
  31 # Replace them with gdb_get_line_number.
  32
  33 set ws  "\[\r\n\t \]+"
  34 set nl  "\[\r\n\]+"
  35
  36 if { [skip_stl_tests] } { continue }
  37
  38 # On SPU this test fails because the executable exceeds local storage size.
  39 if { [istarget "spu*-*-*"] } {
  40         return 0
  41 }
  42
  43 standard_testfile .cc
  44
  45 if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
  46     return -1
  47 }
  48
  49 # Set a catch catchpoint
  50
  51 gdb_test "catch catch" "Catchpoint \[0-9\]+ \\(catch\\)" \
  52     "catch catch (before inferior run)"
  53
  54 # Set a throw catchpoint
  55
  56 gdb_test "catch throw" "Catchpoint \[0-9\]+ \\(throw\\)" \
  57     "catch throw (before inferior run)"
  58
  59
  60 # The catchpoints should be listed in the list of breakpoints.
  61 # In case of a statically linked test, we won't have a pending breakpoint.
  62 # Hence we allow for both an address or "<PENDING>". If we ever become able
  63 # to tell whether the target is linked statically or not, we can be more
  64 # precise and require exact output.
  65 set addr "\(<PENDING>|$hex\)"
  66 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
  67 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
  68 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
  69
  70 set name "info breakpoints (before inferior run)"
  71 gdb_test_multiple "info breakpoints" $name {
  72     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
  73         pass $name
  74     }
  75     -re ".*$gdb_prompt $"
  76       {
  77         fail $name
  78       }
  79 }
  80
  81 gdb_test "tbreak main" "Temporary breakpoint 3.*" \
  82     "Set temporary breakpoint at main"
  83
  84 set ok 0
  85 gdb_run_cmd
  86 gdb_test_multiple "" "Run to main" {
  87     -re "Temporary breakpoint 3,.*$gdb_prompt $" {
  88         pass "Run to main"
  89         set ok 1
  90     }
  91 }
  92
  93 if { !$ok } {
  94     continue
  95 }
  96
  97 set addr "$hex"
  98 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
  99 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
 100 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
 101
 102 set name "info breakpoints (after inferior run)"
 103 gdb_test_multiple "info breakpoints" $name {
 104     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
 105         pass $name
 106     }
 107     -re ".*$gdb_prompt $"
 108       {
 109         send_user "\n---\n$expect_out(buffer)\n---\n"
 110         fail $name
 111       }
 112 }
 113
 114 gdb_test "break catcher" "Breakpoint \[0-9\]+ at.*"
 115
 116 # Get the first exception thrown
 117
 118 set name "continue to first throw"
 119 gdb_test_multiple "continue" $name {
 120     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 121         pass $name
 122     }
 123     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 124         pass $name
 125     }
 126 }
 127
 128 # Backtrace from the throw point.
 129 # This should get to user code.
 130
 131 set name "backtrace after first throw"
 132 gdb_test_multiple "backtrace" $name {
 133     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_throw\[\[:>:\]\].*#\[0-9\]+${ws}$hex in foo \\(i=20\\) at .*${srcfile}:\[0-9\]+\r\n#\[0-9\]+${ws}$hex in main \\(.*\\) at .*${srcfile}:\[0-9\]+\r\n$gdb_prompt $" {
 134         # Either __cxxabiv1::__cxa_throw or __cxa_throw can be printed
 135         # depending on debug info presence.
 136         pass $name
 137     }
 138 }
 139
 140 # Continue to the catch.
 141
 142 set name "continue to first catch"
 143 gdb_test_multiple "continue" $name {
 144     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 145         pass $name
 146     }
 147     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 148         pass $name
 149     }
 150 }
 151
 152 # Backtrace from the catch point.
 153 # This should get to user code.
 154
 155 set name "backtrace after first catch"
 156 gdb_test_multiple "backtrace" $name {
 157     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 158         pass $name
 159     }
 160 }
 161
 162 # Continue to breakpoint on catcher.
 163 gdb_test "continue" ".*catcher \\(x=13\\).*" "continue to catcher for the first time"
 164
 165 # Continue to second throw.
 166
 167 set name "continue to second throw"
 168 gdb_test_multiple "continue" $name {
 169     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 170         pass $name
 171     }
 172     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 173         pass $name
 174     }
 175 }
 176
 177 # Backtrace from the throw point.
 178 # This should get to user code.
 179
 180 set name "backtrace after second throw"
 181 gdb_test_multiple "backtrace" $name {
 182     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_throw\[\[:>:\]\].*#\[0-9\]+${ws}$hex in foo \\(i=20\\) at .*${srcfile}:\[0-9\]+\r\n#\[0-9\]+${ws}$hex in main \\(.*\\) at .*${srcfile}:\[0-9\]+\r\n$gdb_prompt $" {
 183         pass $name
 184     }
 185 }
 186
 187 # Continue to second catch.
 188
 189 set name "continue to second catch"
 190 gdb_test_multiple "continue" $name {
 191     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 192         pass $name
 193     }
 194     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 195         pass $name
 196     }
 197 }
 198
 199 # Backtrace from the catch point.
 200 # This should get to user code.
 201
 202 set name "backtrace after second catch"
 203 gdb_test_multiple "backtrace" $name {
 204     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 205         pass $name
 206     }
 207 }
 208
 209 # Continue to breakpoint on catcher.
 210 gdb_test "continue" ".*catcher \\(x=13\\).*" "continue to catcher for the second time"
 211
 212 # That is all for now.
 213 #
 214 # The original code had:
 215 #
 216 #    continue to re-throw ; backtrace
 217 #    continue to catch    ; backtrace
 218 #    continue to throw out of main
 219 #
 220 # The problem is that "re-throw" does not show a throw; only a catch.
 221 # I do not know if this is because of a bug, or because the generated
 222 # code is optimized for a throw into the same function.
 223 #
 224 # -- chastain 2004-01-09