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

   1 # Copyright (C) 2008-2019 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 standard_testfile interrupted-hand-call.c
  22
  23 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "additional_flags=-DNR_THREADS=$NR_THREADS"]] != "" } {
  24     return -1
  25 }
  26
  27 # Some targets can't do function calls, so don't even bother with this
  28 # test.
  29 if [target_info exists gdb,cannot_call_functions] {
  30     unsupported "this target can not call functions"
  31     continue
  32 }
  33
  34 clean_restart ${binfile}
  35
  36 if { ![runto_main] } {
  37     fail "can't run to main"
  38     return 0
  39 }
  40
  41 gdb_test "break all_threads_running" \
  42          "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
  43          "breakpoint on all_threads_running"
  44
  45 # Run the program and make sure GDB reports that we stopped after
  46 # hitting breakpoint 2 in all_threads_running().
  47
  48 gdb_test "continue" \
  49          ".*Breakpoint 2, all_threads_running ().*" \
  50          "run to all_threads_running"
  51
  52 # NOTE: Don't turn on scheduler-locking here.
  53 # We want the main thread (hand_call_with_signal) and
  54 # thread 1 (sigabrt_handler) to both run.
  55
  56 # Do turn on unwindonsignal.
  57 # We want to test gdb handling of the current thread changing when
  58 # unwindonsignal is in effect.
  59 gdb_test_no_output "set unwindonsignal on" \
  60         "setting unwindonsignal"
  61 gdb_test "show unwindonsignal" \
  62         "Unwinding of stack .* is on." \
  63         "showing unwindonsignal"
  64
  65 gdb_test "call hand_call_with_signal()" \
  66     "The program received a signal.*" \
  67     "hand-call interrupted by signal in another thread"
  68
  69 # Verify dummy stack frame is still present.
  70 # ??? Should unwindonsignal still apply even if the program stops
  71 # because of a signal in another thread?
  72
  73 gdb_test "maint print dummy-frames" ".*stack=.*" "dummy stack frame present"
  74
  75 # GDB 6.8 would perform the unwindonsignal, but on the thread that stopped,
  76 # not the thread with the hand-called function.
  77 # This is tested by verifying only one thread has main in its backtrace.
  78
  79 gdb_test_multiple "thread apply all bt" "wrong thread not unwound" {
  80     -re ".* in main .* in main .*$gdb_prompt $" {
  81         fail "wrong thread not unwound"
  82     }
  83     -re ".* in main .*$gdb_prompt $" {
  84         pass "wrong thread not unwound"
  85     }
  86 }
  87
  88 # Continuing now should exit the hand-call and pop the dummy frame.
  89
  90 gdb_test "continue" ".*" "finish hand-call"
  91
  92 gdb_test_multiple "maint print dummy-frames" "dummy frame popped" {
  93     -re ".*stack=.*$gdb_prompt $" {
  94         fail "dummy frame popped"
  95     }
  96     -re ".*$gdb_prompt $" {
  97         pass "dummy frame popped"
  98     }
  99 }
 100
 101 # Continue one last time, the program should exit normally.
 102
 103 gdb_continue_to_end "" continue 1
 104
 105 return 0