| # This testcase is part of GDB, the GNU debugger. |
| |
| # Copyright 2016-2021 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| # Test attach / detach from a process that uses raw clone. We use raw |
| # clone as proxy for when libthread_db is not available. |
| |
| # This only works on targets with the Linux kernel. |
| if ![istarget *-*-linux*] { |
| return |
| } |
| |
| if {![can_spawn_for_attach]} { |
| return 0 |
| } |
| |
| standard_testfile |
| |
| if [prepare_for_testing "failed to prepare" $testfile $srcfile {debug}] { |
| return -1 |
| } |
| |
| set test_spawn_id [spawn_wait_for_attach $binfile] |
| set testpid [spawn_id_get_pid $test_spawn_id] |
| |
| # Native/gdbserver. |
| set thread_re "(LWP $decimal|Thread )" |
| |
| # Try attach / detach a few times, in case GDB ends up with stale |
| # state after detaching. |
| |
| set attempts 3 |
| for {set attempt 1} {$attempt <= $attempts} {incr attempt} { |
| with_test_prefix "fg attach $attempt" { |
| |
| gdb_test "attach $testpid" \ |
| "Attaching to program.*process $testpid.*" \ |
| "attach" |
| |
| gdb_test "info threads" \ |
| "1.*${thread_re}.*\r\n.*2.*${thread_re}.*" \ |
| "info threads shows two LWPs" |
| |
| gdb_test "detach" "Detaching from .*, process $testpid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" |
| } |
| } |
| |
| # Same, but use async/background attach. |
| |
| # If debugging with target remote, check whether the all-stop variant |
| # of the RSP is being used. If so, we can't run the background tests. |
| if {[target_info exists gdb_protocol] |
| && ([target_info gdb_protocol] == "remote" |
| || [target_info gdb_protocol] == "extended-remote")} { |
| |
| set test "maint show target-non-stop" |
| gdb_test_multiple "maint show target-non-stop" $test { |
| -re "(is|currently) on.*$gdb_prompt $" { |
| } |
| -re "(is|currently) off.*$gdb_prompt $" { |
| unsupported "bg attach: can't issue info threads while target is running" |
| return 0 |
| } |
| } |
| } |
| |
| set attempts 3 |
| for {set attempt 1} {$attempt <= $attempts} {incr attempt} { |
| with_test_prefix "bg attach $attempt" { |
| |
| gdb_test "attach $testpid &" \ |
| "Attaching to program.*process $testpid.*" \ |
| "attach" |
| |
| gdb_test "info threads" \ |
| "1.*${thread_re}.*\\(running\\)\r\n.*2.*${thread_re}.*\\(running\\)" \ |
| "info threads shows two LWPs" |
| |
| gdb_test "detach" "Detaching from .*, process $testpid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" |
| } |
| } |
| |
| kill_wait_spawned_process $test_spawn_id |