gdb/testsuite/gdb.cp/exception.exp

   1 # Copyright 1997, 1998, 2004, 2005, 2007, 2008, 2009, 2010
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file is part of the gdb testsuite.
  18 # tests for exception-handling support
  19 # Written by Satish Pai <pai@apollo.hp.com> 1997-07-23
  20 # Rewritten by Michael Chastain <mec.gnu@mindspring.com> 2004-01-08
  21
  22 # This file used to have two copies of the tests with different
  23 # compiler flags for hp-ux.  Instead, the user should set CXXOPTS
  24 # or run runtest with --target_board unix/gdb:debug_flags="..."
  25 # to choose the compiler flags.
  26 #
  27 # The interesting compiler flags are: "aCC +A -Wl,-a,-archive" .
  28 # Static-linked executables use a different mechanism to get the
  29 # address of the notification hook in the C++ support library.
  30
  31 # TODO: this file has many absolute line numbers.
  32 # Replace them with gdb_get_line_number.
  33
  34 set ws  "\[\r\n\t \]+"
  35 set nl  "\[\r\n\]+"
  36
  37 if $tracelevel then {
  38     strace $tracelevel
  39 }
  40
  41 if { [skip_cplus_tests] } { continue }
  42
  43 # On SPU this test fails because the executable exceeds local storage size.
  44 if { [istarget "spu*-*-*"] } {
  45         return 0
  46 }
  47
  48 set testfile "exception"
  49 set srcfile ${testfile}.cc
  50 set binfile ${objdir}/${subdir}/${testfile}
  51
  52 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
  53      untested exception.exp
  54      return -1
  55 }
  56
  57 # Start with a fresh gdb
  58
  59 set prms_id 0
  60 set bug_id 0
  61
  62 gdb_exit
  63 gdb_start
  64 gdb_reinitialize_dir $srcdir/$subdir
  65 gdb_load ${binfile}
  66
  67 # Set a catch catchpoint
  68
  69 gdb_test "catch catch" "Catchpoint \[0-9\]+ \\(catch\\)" \
  70     "catch catch (before inferior run)"
  71
  72 # Set a throw catchpoint
  73
  74 gdb_test "catch throw" "Catchpoint \[0-9\]+ \\(throw\\)" \
  75     "catch throw (before inferior run)"
  76
  77
  78 # The catchpoints should be listed in the list of breakpoints.
  79 # In case of a statically linked test, we won't have a pending breakpoint.
  80 # Hence we allow for both an address or "<PENDING>". If we ever become able
  81 # to tell whether the target is linked statically or not, we can be more
  82 # precise and require exact output.
  83 set addr "\(<PENDING>|$hex\)"
  84 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
  85 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
  86 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
  87
  88 set name "info breakpoints (before inferior run)"
  89 gdb_test_multiple "info breakpoints" $name {
  90     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
  91         pass $name
  92     }
  93     -re ".*$gdb_prompt $"
  94       {
  95         fail $name
  96       }
  97 }
  98
  99 gdb_test "tbreak main" "Temporary breakpoint 3.*" \
 100     "Set temporary breakpoint at main"
 101
 102 set ok 0
 103 gdb_run_cmd
 104 gdb_test_multiple "" "Run to main" {
 105     -re "Temporary breakpoint 3,.*$gdb_prompt $" {
 106         pass "Run to main"
 107         set ok 1
 108     }
 109 }
 110
 111 if { !$ok } {
 112     continue
 113 }
 114
 115 set addr "$hex"
 116 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
 117 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
 118 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
 119
 120 set name "info breakpoints (after inferior run)"
 121 gdb_test_multiple "info breakpoints" $name {
 122     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
 123         pass $name
 124     }
 125     -re ".*$gdb_prompt $"
 126       {
 127         send_user "\n---\n$expect_out(buffer)\n---\n"
 128         fail $name
 129       }
 130 }
 131
 132 # Get the first exception thrown
 133
 134 set name "continue to first throw"
 135 gdb_test_multiple "continue" $name {
 136     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 137         pass $name
 138     }
 139     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 140         pass $name
 141     }
 142 }
 143
 144 # Backtrace from the throw point.
 145 # This should get to user code.
 146
 147 set name "backtrace after first throw"
 148 gdb_test_multiple "backtrace" $name {
 149     -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 $" {
 150         # Either __cxxabiv1::__cxa_throw or __cxa_throw can be printed
 151         # depending on debug info presence.
 152         pass $name
 153     }
 154 }
 155
 156 # Continue to the catch.
 157
 158 set name "continue to first catch"
 159 gdb_test_multiple "continue" $name {
 160     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 161         pass $name
 162     }
 163     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 164         pass $name
 165     }
 166 }
 167
 168 # Backtrace from the catch point.
 169 # This should get to user code.
 170
 171 set name "backtrace after first catch"
 172 gdb_test_multiple "backtrace" $name {
 173     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 174         pass $name
 175     }
 176 }
 177
 178 # Continue to second throw.
 179
 180 set name "continue to second throw"
 181 gdb_test_multiple "continue" $name {
 182     -re "Continuing.${ws}Got an except 13${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 183         pass $name
 184     }
 185     -re "Continuing.${ws}Got an except 13${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 186         pass $name
 187     }
 188 }
 189
 190 # Backtrace from the throw point.
 191 # This should get to user code.
 192
 193 set name "backtrace after second throw"
 194 gdb_test_multiple "backtrace" $name {
 195     -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 $" {
 196         pass $name
 197     }
 198 }
 199
 200 # Continue to second catch.
 201
 202 set name "continue to second catch"
 203 gdb_test_multiple "continue" $name {
 204     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 205         pass $name
 206     }
 207     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 208         pass $name
 209     }
 210 }
 211
 212 # Backtrace from the catch point.
 213 # This should get to user code.
 214
 215 set name "backtrace after second catch"
 216 gdb_test_multiple "backtrace" $name {
 217     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 218         pass $name
 219     }
 220 }
 221
 222 # That is all for now.
 223 #
 224 # The original code had:
 225 #
 226 #    continue to re-throw ; backtrace
 227 #    continue to catch    ; backtrace
 228 #    continue to throw out of main
 229 #
 230 # The problem is that "re-throw" does not show a throw; only a catch.
 231 # I do not know if this is because of a bug, or because the generated
 232 # code is optimized for a throw into the same function.
 233 #
 234 # -- chastain 2004-01-09