gdb/testsuite/gdb.threads/reconnect-signal.exp

   1 # Copyright 2013-2024 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 disconnecting and reconnecting doesn't lose signals.
  17
  18 set gdbserver_reconnect_p 1
  19 if { [info proc gdb_reconnect] == "" } {
  20     unsupported "requires gdbserver reconnect"
  21     return 0
  22 }
  23
  24 standard_testfile
  25 set executable ${testfile}
  26
  27 if { [gdb_compile_pthreads \
  28           "${srcdir}/${subdir}/${srcfile}" \
  29           "${binfile}" \
  30           executable {debug}] != "" } {
  31     untested "failed to compile"
  32     return -1
  33 }
  34
  35 clean_restart $executable
  36
  37 if {![runto_main]} {
  38     return 0
  39 }
  40
  41 gdb_test "continue" "signal SIGUSR1.*" "continue to signal"
  42
  43 # Check that it's thread 2 that is selected.
  44 gdb_test "info threads" "\\* 2 .*" "thread 2 is selected"
  45
  46 set msg "save \$pc after signal"
  47 set saved_pc ""
  48 gdb_test_multiple "print/x \$pc" $msg {
  49     -re "\\\$$decimal = (\[^\r\n\]*)\r\n$gdb_prompt $" {
  50         set saved_pc $expect_out(1,string)
  51         pass $msg
  52     }
  53 }
  54
  55 # Switch to the other thread.
  56 gdb_test "thread 1" "thread 1.*" "switch to thread 1"
  57
  58 # Force GDB to select thread 1 on the remote end as well.
  59 gdb_test "print/x \$pc"
  60
  61 gdb_test "disconnect" "Ending remote debugging\\." "disconnect after signal"
  62
  63 set test "reconnect after signal"
  64
  65 set res [gdb_reconnect]
  66 if { [lindex $res 0] == 0 } {
  67     pass $test
  68 } else {
  69     fail $test
  70     return 0
  71 }
  72
  73 # Check that thread 2 is re-selected.
  74 gdb_test "info threads" "\\* 2 .*" "thread 2 is selected on reconnect"
  75
  76 # Check that the program is still alive, and stopped in the same spot.
  77 gdb_test "print/x \$pc" "\\\$$decimal = $saved_pc" "check \$pc after signal"
  78
  79 # Check that we didn't lose the signal.
  80 gdb_test "info program" "stopped with signal SIGUSR1,.*"
  81
  82 # Nor does the program.
  83 gdb_test "b handle" "Breakpoint .*" "set breakpoint in signal handler"
  84 gdb_test "continue" "handle.*" "continue to signal handler"