gdb/testsuite/gdb.base/interrupt.exp

   1 # Copyright 1994-2015 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 if [target_info exists gdb,nointerrupts] {
  17     verbose "Skipping interrupt.exp because of nointerrupts."
  18     continue
  19 }
  20
  21 standard_testfile
  22
  23 set options { debug }
  24 if { ! [target_info exists gdb,nosignals] } {
  25     lappend options "additional_flags=-DSIGNALS"
  26 }
  27
  28 if {[build_executable $testfile.exp $testfile $srcfile $options] == -1} {
  29     untested $testfile.exp
  30     return -1
  31 }
  32
  33 gdb_start
  34
  35
  36 if ![file exists $binfile] then {
  37     perror "$binfile does not exist."
  38     return 0
  39 } else {
  40     gdb_reinitialize_dir $srcdir/$subdir
  41     gdb_load $binfile
  42     # Hope this is unix :-)
  43     gdb_test "shell stty intr '^C'" ".*" \
  44         "set interrupt character in interrupt.exp"
  45     if [runto_main] then {
  46         global inferior_spawn_id gdb_spawn_id
  47
  48         if {[target_info exists gdb,noinferiorio] && $inferior_spawn_id == $gdb_spawn_id} {
  49             verbose "Skipping interrupt.exp because of noinferiorio."
  50             return
  51         }
  52
  53         set msg "process is alive"
  54         gdb_test_multiple "continue" $msg {
  55             -i "$inferior_spawn_id" -re "talk to me baby\r\n" {
  56                 pass $msg
  57             }
  58         }
  59
  60         # This should appear twice, once for the echo and once for the
  61         # program's output.
  62
  63         set msg "child process ate our char"
  64         send_inferior "a\n"
  65         gdb_test_multiple "" $msg {
  66             -i "$inferior_spawn_id" -re "^a\r\na\r\n$" {
  67                 pass $msg
  68             }
  69         }
  70
  71         # Wait until the program is in the read system call again.
  72         sleep 2
  73
  74         # Cntrl-c may fail for simulator targets running on a BSD host.
  75         # This is the result of a combination of the read syscall
  76         # being restarted and gdb capturing the cntrl-c signal.
  77
  78         # Cntrl-c may fail for simulator targets on slow hosts.
  79         # This is because there is a race condition between entering
  80         # the read and delivering the cntrl-c.
  81
  82         send_gdb "\003"
  83         set msg "send_gdb control C"
  84         gdb_test_multiple "" $msg {
  85             -re "Program received signal SIGINT.*$gdb_prompt $" {
  86                 pass $msg
  87             }
  88         }
  89
  90         set msg "call function when asleep"
  91         send_gdb "p func1 ()\n"
  92         gdb_test_multiple "" $msg {
  93             -re " = 4.*$gdb_prompt $" {
  94                 pass $msg
  95             }
  96             -re ".*Program received signal SIG(SEGV|ILL).*$gdb_prompt $" {
  97                 setup_xfail "i*86-pc-linux*-gnu*"
  98                 fail "child died when we called func1, skipped rest of tests"
  99                 return
 100             }
 101             -re "$gdb_prompt $" {
 102                 # On HPUX-11.0 'send "p func1 ()"' above
 103                 # terminates the program. A defect is pending on this
 104                 # issue [defect #DTS CHFts24203]. Hence calling setup_xfail
 105                 # below.
 106                 setup_xfail "hppa*-*-*11*" CHFts24203
 107                 fail "call function when asleep (wrong output)"
 108             }
 109             default {
 110
 111                 # This fail probably happens whenever we use /proc (we
 112                 # don't use PRSABORT), but apparently also happens on
 113                 # other machines as well.
 114
 115                 setup_xfail "sparc*-*-solaris2*"
 116                 setup_xfail "i*86-*-solaris2*"
 117                 setup_xfail "*-*-sysv4*"
 118                 setup_xfail "vax-*-*"
 119                 setup_xfail "alpha-*-*"
 120                 setup_xfail "*-*-*bsd*"
 121                 setup_xfail "*-*-hpux*"
 122                 setup_xfail "*-*-*lynx*"
 123                 fail "$msg (stays asleep)"
 124                 # Send the inferior a newline to wake it up.
 125                 send_inferior "\n"
 126                 gdb_test "" " = 4" "call function after waking it"
 127             }
 128         }
 129
 130         # Now try calling the function again.
 131         gdb_test "p func1 ()" " = 4" "call function a second time"
 132
 133         # And the program should still be doing the same thing.
 134         # The optional trailing \r\n is in case we sent a newline above
 135         # to wake the program, in which case the program now sends it
 136         # back.  We check for it either here or in the next gdb_expect
 137         # command, because which one it ends up in is timing dependent.
 138         send_gdb "continue\n"
 139         # For some reason, i386-*-sysv4 gdb fails to issue the Continuing
 140         # message, but otherwise appears normal (FIXME).
 141
 142         set msg "continue"
 143         gdb_test_multiple "" "$msg" {
 144             -re "^continue\r\nContinuing.\r\n(\r\n|)$" {
 145                 pass $msg
 146             }
 147             -re "^continue\r\n\r\n" {
 148                 fail "$msg (missing Continuing.)"
 149             }
 150         }
 151
 152         send_inferior "data\n"
 153         # The optional leading \r\n is in case we sent a newline above
 154         # to wake the program, in which case the program now sends it
 155         # back.
 156         # FIXME: The pattern below leads to an expected success on HPUX-11.0
 157         # but the success is spurious. Need to provide the right reg.expr.
 158         # here.
 159
 160         set msg "echo data"
 161         gdb_test_multiple "" $msg {
 162             -i "$inferior_spawn_id" -re "^(\r\n|)data\r\ndata\r\n$" {
 163                 pass $msg
 164             }
 165             -i "$gdb_spawn_id" -re "Undefined command.*$gdb_prompt " {
 166                 fail $msg
 167             }
 168         }
 169
 170         if { ! [target_info exists gdb,nosignals] } {
 171             # Wait until the program is in the read system call again.
 172             sleep 2
 173
 174             # Stop the program for another test.
 175             set msg "Send Control-C, second time"
 176             send_gdb "\003"
 177             gdb_test_multiple "" "$msg" {
 178                 -re "Program received signal SIGINT.*$gdb_prompt $" {
 179                     pass "$msg"
 180                 }
 181             }
 182
 183             # The "signal" command should deliver the correct signal and
 184             # return to the loop.
 185             set msg "signal SIGINT"
 186             gdb_test_multiple "signal SIGINT" "$msg" {
 187                 -re "^signal SIGINT\r\nContinuing with signal SIGINT.\r\n(\r\n|)$" {
 188                     pass "$msg"
 189                 }
 190             }
 191
 192             # We should be back in the loop.
 193             send_inferior "more data\n"
 194
 195             set msg "echo more data"
 196             gdb_test_multiple "" $msg {
 197                 -i "$inferior_spawn_id" -re "^(\r\n|)more data\r\nmore data\r\n$" {
 198                     pass $msg
 199                 }
 200             }
 201         }
 202
 203         set saw_end_of_file 0
 204         set saw_inferior_exit 0
 205
 206         set msg "send end of file"
 207         send_inferior "\004"
 208
 209         set spawn_list "$inferior_spawn_id"
 210
 211         gdb_test_multiple "" $msg {
 212             -i spawn_list -re "end of file" {
 213                 set saw_end_of_file 1
 214                 verbose -log "saw \"end of file\""
 215                 if {!$saw_inferior_exit} {
 216                     # When $inferior_spawn_id != $gdb_spawn_id, such
 217                     # as when testing with gdbserver, we may see the
 218                     # eof (the process exit, not the string just
 219                     # matched) for $inferior_spawn_id before the
 220                     # expected gdb output.  Clear this so we no longer
 221                     # expect anything out of $inferior_spawn_id.
 222                     set spawn_list ""
 223                     exp_continue
 224                 }
 225             }
 226             -i "$gdb_spawn_id" -re "$inferior_exited_re normally.*$gdb_prompt " {
 227                 set saw_inferior_exit 1
 228                 verbose -log "saw inferior exit"
 229                 if {!$saw_end_of_file} {
 230                     exp_continue
 231                 }
 232             }
 233         }
 234
 235         gdb_assert { $saw_end_of_file && $saw_inferior_exit } $msg
 236     }
 237 }
 238 return 0