TheRock/debug-tools/rocgdb/source/gdb/testsuite/gdb.threads/process-exit-status-is-leader-exit-status.exp

# Copyright (C) 2022-2024 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/>.

# GDB must always report the process's exit status based on the exit
# status of the thread group leader thread.  Test that when multiple
# threads exit simultaneously, GDB doesn't confuse the non-leader
# threads' exit status for the process's exit status.  GDB used to
# have a race condition that led to randomly handling this
# incorrectly.
#
# Since the improper behavior is racy in nature, this test is not
# expected to be able to reproduce the error reliably.  Multiple
# executions (or increasing the number of iterations) might be
# required to reproduce the error with a misbehaving GDB.

if { ![istarget "*-*-linux*"] } {
    return 0
}

standard_testfile

if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
    return -1
}

for {set iteration 0} {$iteration < 10} {incr iteration} {
    with_test_prefix "iteration=$iteration" {
	if {![runto_main]} {
	    return
	}

	gdb_test_multiple "continue" "" {
	    -re -wrap "\\\[Inferior 1 \\(.*\\) exited with code 01\\\]" {
		pass $gdb_test_name
	    }

	    -re -wrap "\\\[Inferior 1 \\(.*\\) exited with code $::decimal\\\]" {
		set lkv [linux_kernel_version]

		if { [llength $lkv] != 0 } {
		    if { [version_compare {6 1 0} <= $lkv] } {
			xfail "$gdb_test_name (PR 29965)"
			return
		    }
		}

		fail $gdb_test_name
	    }
	}
    }
}