gdb/testsuite/gdb.multi/attach-no-multi-process.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2020-2024 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Test attaching to a process, as a second inferior, through a
  19 # gdbserver that does not support multi-process extensions.
  20
  21 load_lib gdbserver-support.exp
  22
  23 standard_testfile
  24
  25 require allow_gdbserver_tests
  26
  27 require can_spawn_for_attach
  28
  29 if {[build_executable "build" $testfile $srcfile {debug}] == -1} {
  30     return -1
  31 }
  32
  33 proc test {target_non_stop} {
  34     global binfile
  35     global gdb_prompt
  36
  37     save_vars { ::GDBFLAGS } {
  38         # If GDB and GDBserver are both running locally, set the sysroot to avoid
  39         # reading files via the remote protocol.
  40         if { ![is_remote host] && ![is_remote target] } {
  41             set ::GDBFLAGS "${::GDBFLAGS} -ex \"set sysroot\""
  42         }
  43         set ::GDBFLAGS \
  44             "${::GDBFLAGS} -ex \"set remote multiprocess-feature-packet off\""
  45         set ::GDBFLAGS \
  46             "${::GDBFLAGS} -ex \"maint set target-non-stop ${target_non_stop}\""
  47         clean_restart ${binfile}
  48     }
  49
  50     # Start the first inferior.
  51     if {![runto_main]} {
  52         return
  53     }
  54
  55     # The second inferior is an extended remote.
  56     gdb_test "add-inferior -no-connection" "Added inferior 2.*" \
  57         "add the second inferior"
  58     gdb_test "inferior 2" ".*Switching to inferior 2.*" \
  59         "switch to inferior 2"
  60     set res [gdbserver_start "--multi" ""]
  61     set gdbserver_gdbport [lindex $res 1]
  62     gdb_target_cmd "extended-remote" $gdbserver_gdbport
  63
  64     # Start a program, then attach to it.
  65     set spawn_id_list [spawn_wait_for_attach [list $binfile]]
  66     set test_spawn_id [lindex $spawn_id_list 0]
  67     set testpid [spawn_id_get_pid $test_spawn_id]
  68     gdb_test_multiple "attach $testpid" "attach to the program via remote" {
  69         -re "Attaching to Remote target.*\[\r\n\]+$gdb_prompt " {
  70             pass $gdb_test_name
  71         }
  72     }
  73
  74     # Check that we have two threads.  Bad GDB duplicated the
  75     # thread coming from the remote when target-non-stop is off;
  76     # or hanged during attach when target-non-stop is on.
  77     gdb_test "info threads" \
  78         [multi_line \
  79              "  Id\[^\r\n\]+" \
  80              "  1\.1\[^\r\n\]+" \
  81              ". 2\.1\[^\r\n\]+"
  82         ]
  83
  84     # Clean the spawned process and gdbserver.
  85     gdbserver_exit 0
  86     kill_wait_spawned_process $test_spawn_id
  87 }
  88
  89 foreach_with_prefix target_non_stop {off on} {
  90     test $target_non_stop
  91 }