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# Copyright 2023-2024 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 that after an exec of a non-leader thread, we don't leave the
# non-leader thread listed in internal thread lists, causing problems.
standard_testfile .c
proc do_test { } {
if [prepare_for_testing "failed to prepare" $::testfile $::srcfile {debug pthreads}] {
return -1
}
if ![runto_main] {
return
}
gdb_test "catch exec" "Catchpoint $::decimal \\(exec\\)"
gdb_test "continue" "Catchpoint $::decimal .*" "continue until exec"
# Confirm we only have one thread in the thread list.
gdb_test "p \$_inferior_thread_count" " = 1"
# Get the post-exec thread number. Due to PR gdb/31069 ("Zombie
# leader detection racy") this isn't always thread 1.1.
set cur_thr [get_integer_valueof "\$_thread" 0]
if {[istarget *-*-linux*] && [gdb_protocol_is_native]} {
# Confirm there's only one LWP in the list as well, and that
# it is bound to the existing GDB thread.
set inf_pid [get_inferior_pid]
gdb_test_multiple "maint info linux-lwps" "" {
-wrap -re "Thread ID *\r\n$inf_pid\.$inf_pid\.0\[ \t\]+1\.$cur_thr *" {
pass $gdb_test_name
}
}
}
# Test that GDB is able to kill the inferior. This used to crash
# on native Linux as GDB did not dispose of the pre-exec LWP for
# the non-leader (and that LWP did not have a matching thread in
# the core thread list).
gdb_test "with confirm off -- kill" \
"\\\[Inferior 1 (.*) killed\\\]" \
"kill inferior"
}
do_test
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