gdb/testsuite/gdb.threads/thread-unwindonsignal.exp

   1 # Copyright (C) 2008, 2010, 2011 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 # Test use of unwindonsignal when a hand function call that gets interrupted
  17 # by a signal in another thread.
  18
  19 set NR_THREADS 4
  20
  21 if $tracelevel then {
  22         strace $tracelevel
  23 }
  24
  25 set testfile "interrupted-hand-call"
  26 set srcfile ${testfile}.c
  27 set binfile ${objdir}/${subdir}/${testfile}
  28
  29 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}" "additional_flags=-DNR_THREADS=$NR_THREADS"]] != "" } {
  30     return -1
  31 }
  32
  33 # Some targets can't do function calls, so don't even bother with this
  34 # test.
  35 if [target_info exists gdb,cannot_call_functions] {
  36     setup_xfail "*-*-*" 2416
  37     fail "This target can not call functions"
  38     continue
  39 }
  40
  41 gdb_exit
  42 gdb_start
  43 gdb_reinitialize_dir $srcdir/$subdir
  44 gdb_load ${binfile}
  45
  46 if { ![runto_main] } {
  47     fail "Can't run to main"
  48     return 0
  49 }
  50
  51 gdb_test "break all_threads_running" \
  52          "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
  53          "breakpoint on all_threads_running"
  54
  55 # Run the program and make sure GDB reports that we stopped after
  56 # hitting breakpoint 2 in all_threads_running().
  57
  58 gdb_test "continue" \
  59          ".*Breakpoint 2, all_threads_running ().*" \
  60          "run to all_threads_running"
  61
  62 # NOTE: Don't turn on scheduler-locking here.
  63 # We want the main thread (hand_call_with_signal) and
  64 # thread 1 (sigabrt_handler) to both run.
  65
  66 # Do turn on unwindonsignal.
  67 # We want to test gdb handling of the current thread changing when
  68 # unwindonsignal is in effect.
  69 gdb_test_no_output "set unwindonsignal on" \
  70         "setting unwindonsignal"
  71 gdb_test "show unwindonsignal" \
  72         "Unwinding of stack .* is on." \
  73         "showing unwindonsignal"
  74
  75 gdb_test "call hand_call_with_signal()" \
  76     "The program received a signal.*" \
  77     "hand-call interrupted by signal in another thread"
  78
  79 # Verify dummy stack frame is still present.
  80 # ??? Should unwindonsignal still apply even if the program stops
  81 # because of a signal in another thread?
  82
  83 gdb_test "maint print dummy-frames" ".*stack=.*" "dummy stack frame present"
  84
  85 # GDB 6.8 would perform the unwindonsignal, but on the thread that stopped,
  86 # not the thread with the hand-called function.
  87 # This is tested by verifying only one thread has main in its backtrace.
  88
  89 gdb_test_multiple "thread apply all bt" "wrong thread not unwound" {
  90     -re ".* in main .* in main .*$gdb_prompt $" {
  91         fail "wrong thread not unwound"
  92     }
  93     -re ".* in main .*$gdb_prompt $" {
  94         pass "wrong thread not unwound"
  95     }
  96 }
  97
  98 # Continuing now should exit the hand-call and pop the dummy frame.
  99
 100 gdb_test "continue" ".*" "finish hand-call"
 101
 102 gdb_test_multiple "maint print dummy-frames" "dummy frame popped" {
 103     -re ".*stack=.*$gdb_prompt $" {
 104         fail "dummy frame popped"
 105     }
 106     -re ".*$gdb_prompt $" {
 107         pass "dummy frame popped"
 108     }
 109 }
 110
 111 # Continue one last time, the program should exit normally.
 112
 113 gdb_continue_to_end "" continue 1
 114
 115 return 0