gdb/testsuite/gdb.threads/manythreads.exp

   1 # manythreads.exp -- Expect script to test stopping many threads
   2 # Copyright (C) 2004-2014 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 was written by Jeff Johnston. (jjohnstn@redhat.com)
  18
  19
  20 standard_testfile
  21
  22 set opts { debug }
  23 if [info exists DEBUG] {
  24     # make check RUNTESTFLAGS='gdb.threads/manythreads.exp DEBUG=1'
  25     lappend opts "additional_flags=-DDEBUG"
  26 }
  27
  28 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
  29     return -1
  30 }
  31
  32 clean_restart ${binfile}
  33 gdb_test_no_output "set print sevenbit-strings"
  34 runto_main
  35
  36 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  37 # run the program and gdb starts saving and restoring tty states.
  38 # On Ultrix, we don't need it and it is really slow (because shell_escape
  39 # doesn't use vfork).
  40 if ![istarget "*-*-ultrix*"] then {
  41     gdb_test "shell stty intr '^C'" ".*"
  42 }
  43
  44 set message "first continue"
  45 gdb_test_multiple "continue" "first continue" {
  46   -re "error:.*$gdb_prompt $" {
  47     fail "$message"
  48   }
  49   -re "Continuing" {
  50     pass "$message"
  51   }
  52 }
  53
  54 # Wait one second.  This is better than the TCL "after" command, because
  55 # we don't lose GDB's output while we do it.
  56 remote_expect host 1 { timeout { } }
  57
  58 # Send a Ctrl-C and wait for the SIGINT.
  59
  60 proc interrupt_and_wait { message } {
  61     global gdb_prompt
  62
  63     send_gdb "\003"
  64
  65     gdb_test_multiple "" $message {
  66         -re "\\\[New \[^\]\]*\\\]\r\n" {
  67             exp_continue
  68         }
  69         -re "\\\[\[^\]\]* exited\\\]\r\n" {
  70             exp_continue
  71         }
  72         -re "Program received signal SIGINT.*$gdb_prompt $" {
  73             pass "$message"
  74         }
  75         -re "$gdb_prompt $" {
  76             # Note that with this regex order, if GDB emits [New
  77             # Thread ...] output between "Program received signal" and
  78             # the prompt, the "Program received signal" regex won't
  79             # match.  That's good, as if we see that happening, it's a
  80             # regression.
  81             #
  82             # GDB makes sure to notify about signal stops, end of
  83             # stepping ranges, etc., only after updating the thread
  84             # list, otherwise that stop info would be easy to miss.
  85             #
  86             # A BROKEN example would be:
  87             #
  88             #  ... pages of new threads output ...
  89             #  [New Thread NNN]
  90             #  ^C
  91             #  ... more new threads output ...
  92             #  [New Thread NNN]
  93             #  [New Thread NNN]
  94             #  Program received signal SIGINT, Interrupt.
  95             #  [New Thread NNN]
  96             #  [New Thread NNN]
  97             #  ... pages of new threads output ...
  98             #  [Switching to Thread NNN]
  99             #  foo () at foo.c:31
 100             #  31      bar ();
 101             #
 102             fail $test
 103         }
 104     }
 105 }
 106
 107 # Send a Ctrl-C and verify that we can do info threads and continue
 108 interrupt_and_wait "stop threads 1"
 109
 110 set cmd "info threads"
 111 set ok 0
 112 gdb_test_multiple $cmd $cmd {
 113     -re " 1 *Thread " {
 114         set ok 1
 115         exp_continue
 116     }
 117     -re ".*\r\n" {
 118         # Eat this line and continue, to prevent the buffer overflowing.
 119         exp_continue
 120     }
 121     -re "$gdb_prompt $" {
 122         if { $ok } {
 123             pass $cmd
 124         } else {
 125             fail $cmd
 126         }
 127     }
 128 }
 129
 130 gdb_test_no_output "thread name zardoz" "give a name to the thread"
 131 gdb_test "info threads" ".*zardoz.*" "check thread name"
 132
 133 set message "second continue"
 134 gdb_test_multiple "continue" "second continue" {
 135   -re "error:.*$gdb_prompt $" {
 136     fail "$message"
 137   }
 138   -re "Continuing" {
 139     pass "$message"
 140   }
 141 }
 142
 143 # Wait another second.  If the program stops on its own, GDB has failed
 144 # to handle duplicate SIGINTs sent to multiple threads.
 145 set failed 0
 146 remote_expect host 1 {
 147   -re "\\\[New \[^\]\]*\\\]\r\n" {
 148     exp_continue -continue_timer
 149   }
 150   -re "\\\[\[^\]\]* exited\\\]\r\n" {
 151     exp_continue -continue_timer
 152   }
 153   -re "Program received signal SIGINT.*$gdb_prompt $" {
 154     if { $failed == 0 } {
 155       fail "check for duplicate SIGINT"
 156     }
 157     send_gdb "continue\n"
 158     set failed 1
 159     exp_continue
 160   }
 161   timeout {
 162     if { $failed == 0 } {
 163       pass "check for duplicate SIGINT"
 164     }
 165   }
 166 }
 167
 168 # Send another Ctrl-C and verify that we can do info threads and quit
 169 interrupt_and_wait "stop threads 2"
 170
 171 gdb_test_multiple "quit" "GDB exits after stopping multithreaded program" {
 172     -re "Quit anyway\\? \\(y or n\\) $" {
 173         send_gdb "y\n"
 174         exp_continue
 175     }
 176     eof {
 177         pass "GDB exits after stopping multithreaded program"
 178     }
 179     timeout {
 180         fail "GDB exits after stopping multithreaded program (timeout)"
 181     }
 182 }
 183