gdb/testsuite/gdb.base/interrupt.exp

   1 # Copyright 1994-2016 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 if [target_info exists gdb,noinferiorio] {
  22     verbose "Skipping interrupt.exp because of noinferiorio."
  23     return
  24 }
  25
  26 standard_testfile
  27
  28 set options { debug }
  29 if { ! [target_info exists gdb,nosignals] } {
  30     lappend options "additional_flags=-DSIGNALS"
  31 }
  32
  33 if {[build_executable $testfile.exp $testfile $srcfile $options] == -1} {
  34     untested "failed to compile"
  35     return -1
  36 }
  37
  38 gdb_start
  39
  40
  41 if ![file exists $binfile] then {
  42     perror "$binfile does not exist."
  43     return 0
  44 } else {
  45     gdb_reinitialize_dir $srcdir/$subdir
  46     gdb_load $binfile
  47     # Hope this is unix :-)
  48     gdb_test "shell stty intr '^C'" ".*" \
  49         "set interrupt character in interrupt.exp"
  50     if [runto_main] then {
  51         global inferior_spawn_id gdb_spawn_id
  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 $" {
 102                 fail "call function when asleep (wrong output)"
 103             }
 104             default {
 105
 106                 # This fail probably happens whenever we use /proc (we
 107                 # don't use PRSABORT), but apparently also happens on
 108                 # other machines as well.
 109
 110                 setup_xfail "sparc*-*-solaris2*"
 111                 setup_xfail "i*86-*-solaris2*"
 112                 setup_xfail "*-*-sysv4*"
 113                 setup_xfail "vax-*-*"
 114                 setup_xfail "alpha-*-*"
 115                 setup_xfail "*-*-*bsd*"
 116                 setup_xfail "*-*-*lynx*"
 117                 fail "$msg (stays asleep)"
 118                 # Send the inferior a newline to wake it up.
 119                 send_inferior "\n"
 120                 gdb_test "" " = 4" "call function after waking it"
 121             }
 122         }
 123
 124         # Now try calling the function again.
 125         gdb_test "p func1 ()" " = 4" "call function a second time"
 126
 127         # And the program should still be doing the same thing.
 128         # The optional trailing \r\n is in case we sent a newline above
 129         # to wake the program, in which case the program now sends it
 130         # back.  We check for it either here or in the next gdb_expect
 131         # command, because which one it ends up in is timing dependent.
 132         send_gdb "continue\n"
 133         # For some reason, i386-*-sysv4 gdb fails to issue the Continuing
 134         # message, but otherwise appears normal (FIXME).
 135
 136         set msg "continue"
 137         gdb_test_multiple "" "$msg" {
 138             -re "^continue\r\nContinuing.\r\n(\r\n|)$" {
 139                 pass $msg
 140             }
 141             -re "^continue\r\n\r\n" {
 142                 fail "$msg (missing Continuing.)"
 143             }
 144         }
 145
 146         send_inferior "data\n"
 147         # The optional leading \r\n is in case we sent a newline above
 148         # to wake the program, in which case the program now sends it
 149         # back.
 150
 151         set msg "echo data"
 152         gdb_test_multiple "" $msg {
 153             -i "$inferior_spawn_id" -re "^(\r\n|)data\r\ndata\r\n$" {
 154                 pass $msg
 155             }
 156             -i "$gdb_spawn_id" -re "Undefined command.*$gdb_prompt " {
 157                 fail $msg
 158             }
 159         }
 160
 161         if { ! [target_info exists gdb,nosignals] } {
 162             # Wait until the program is in the read system call again.
 163             sleep 2
 164
 165             # Stop the program for another test.
 166             set msg "Send Control-C, second time"
 167             send_gdb "\003"
 168             gdb_test_multiple "" "$msg" {
 169                 -re "Program received signal SIGINT.*$gdb_prompt $" {
 170                     pass "$msg"
 171                 }
 172             }
 173
 174             # The "signal" command should deliver the correct signal and
 175             # return to the loop.
 176             set msg "signal SIGINT"
 177             gdb_test_multiple "signal SIGINT" "$msg" {
 178                 -re "^signal SIGINT\r\nContinuing with signal SIGINT.\r\n(\r\n|)$" {
 179                     pass "$msg"
 180                 }
 181             }
 182
 183             # We should be back in the loop.
 184             send_inferior "more data\n"
 185
 186             set msg "echo more data"
 187             gdb_test_multiple "" $msg {
 188                 -i "$inferior_spawn_id" -re "^(\r\n|)more data\r\nmore data\r\n$" {
 189                     pass $msg
 190                 }
 191             }
 192         }
 193
 194         set saw_end_of_file 0
 195         set saw_inferior_exit 0
 196
 197         set msg "send end of file"
 198         send_inferior "\004"
 199
 200         set spawn_list "$inferior_spawn_id"
 201
 202         gdb_test_multiple "" $msg {
 203             -i spawn_list -re "end of file" {
 204                 set saw_end_of_file 1
 205                 verbose -log "saw \"end of file\""
 206                 if {!$saw_inferior_exit} {
 207                     # When $inferior_spawn_id != $gdb_spawn_id, such
 208                     # as when testing with gdbserver, we may see the
 209                     # eof (the process exit, not the string just
 210                     # matched) for $inferior_spawn_id before the
 211                     # expected gdb output.  Clear this so we no longer
 212                     # expect anything out of $inferior_spawn_id.
 213                     set spawn_list ""
 214                     exp_continue
 215                 }
 216             }
 217             -i "$gdb_spawn_id" -re "$inferior_exited_re normally.*$gdb_prompt " {
 218                 set saw_inferior_exit 1
 219                 verbose -log "saw inferior exit"
 220                 if {!$saw_end_of_file} {
 221                     exp_continue
 222                 }
 223             }
 224         }
 225
 226         gdb_assert { $saw_end_of_file && $saw_inferior_exit } $msg
 227     }
 228 }
 229 return 0