1# Copyright 2017-2019 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# Check that we can attach to processes that are not process group 17# leaders. We test that by attaching to a fork child that doesn't 18# call any of setpgrp/setpgid/setsid to move itself to a new process 19# group. 20 21if {![can_spawn_for_attach]} { 22 return 0 23} 24 25standard_testfile 26 27if { [build_executable ${testfile}.exp ${testfile} $srcfile {debug}] == -1 } { 28 return -1 29} 30 31proc do_test {} { 32 global binfile 33 global decimal 34 35 set test_spawn_id [spawn_wait_for_attach $binfile] 36 set parent_pid [spawn_id_get_pid $test_spawn_id] 37 38 # Attach to the parent, run it to a known point, extract the 39 # child's PID, and detach. 40 with_test_prefix "parent" { 41 clean_restart ${binfile} 42 43 gdb_test "attach $parent_pid" \ 44 "Attaching to program.*, process $parent_pid.*" \ 45 "attach" 46 47 gdb_breakpoint "marker" 48 gdb_continue_to_breakpoint "marker" 49 50 set child_pid [get_integer_valueof "child_pid" -1] 51 if {$child_pid == -1} { 52 return 53 } 54 55 gdb_test "detach" \ 56 "Detaching from program: .*process $parent_pid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" 57 } 58 59 # Start over, and attach to the child this time. 60 with_test_prefix "child" { 61 clean_restart $binfile 62 63 gdb_test "attach $child_pid" \ 64 "Attaching to program.*, process $child_pid.*" \ 65 "attach" 66 67 gdb_breakpoint "marker" 68 gdb_continue_to_breakpoint "marker" 69 70 gdb_test "detach" \ 71 "Detaching from program: .*process $child_pid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" 72 } 73 74 kill_wait_spawned_process $test_spawn_id 75} 76 77do_test 78