gdb/testsuite/gdb.threads/signal-command-handle-nopass.exp

   1 # Copyright (C) 2014-2021 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 that an explicit "signal FOO" delivers FOO even if "handle" for
  17 # that same signal is set to "nopass".  Also make sure the signal is
  18 # delivered to the right thread, even if GDB has to step over a
  19 # breakpoint in some other thread first.
  20
  21 if [target_info exists gdb,nosignals] {
  22     verbose "Skipping ${testfile}.exp because of nosignals."
  23     return -1
  24 }
  25
  26 standard_testfile
  27
  28 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
  29          executable { debug }] != "" } {
  30     return -1
  31 }
  32
  33 # Run the test proper.  STEP_OVER indicates whether we leave in place
  34 # a breakpoint that needs to be stepped over when we explicitly
  35 # request a signal be delivered with the "signal" command.
  36
  37 proc test { step_over } {
  38     global srcfile binfile
  39
  40     with_test_prefix "step-over $step_over" {
  41         clean_restart ${binfile}
  42
  43         if ![runto_main] then {
  44             fail "can't run to main"
  45             return 0
  46         }
  47
  48         gdb_test "handle SIGUSR1 stop print nopass"
  49
  50         gdb_test "b thread_function" "Breakpoint .* at .*$srcfile.*"
  51         gdb_test "continue" "thread_function.*" "stopped in thread"
  52
  53         # Thread 2 is stopped at a breakpoint.  If we leave the
  54         # breakpoint in place, GDB needs to move thread 2 past the
  55         # breakpoint before delivering the signal to thread 1.  We
  56         # want to be sure that GDB doesn't mistakenly deliver the
  57         # signal to thread 1 while doing that.
  58         if { $step_over == "no" } {
  59             delete_breakpoints
  60         }
  61
  62         gdb_test "break handler" "Breakpoint .* at .*$srcfile.*"
  63
  64         gdb_test "thread 1" "Switching to thread 1.*"
  65
  66         set pattern "\\\* 1\[ \t\]+Thread.*"
  67
  68         gdb_test "info threads" $pattern "thread 1 selected"
  69
  70         gdb_test "signal SIGUSR1" "handler .*"
  71
  72         # Make sure it was thread 1 that got the signal.  Note we list
  73         # all threads instead of just thread 1, so that if something
  74         # goes wrong and another thread ends up selected, we can
  75         # easily see which in the logs.
  76         gdb_test "info threads" $pattern "thread 1 got the signal"
  77     }
  78 }
  79
  80 foreach stepover {"yes" "no"} {
  81     test $stepover
  82 }