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c6479f8b2a
This adds a multi-threaded testcase that has all threads in the process exit with a different exit code, and ensures that GDB reports the thread group leader's exit status as the whole-process exit status. Before this set of patches, this would randomly report the exit code of some other thread, and thus fail. Tested on Linux-x86_64, native and gdbserver. Co-Authored-By: Pedro Alves <pedro@palves.net> Change-Id: I30cba2ff4576fb01b5169cc72667f3268d919557
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
# Copyright (C) 2022 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# GDB must always report the process's exit status based on the exit
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# status of the thread group leader thread. Test that when multiple
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# threads exit simultaneously, GDB doesn't confuse the non-leader
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# threads' exit status for the process's exit status. GDB used to
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# have a race condition that led to randomly handling this
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# incorrectly.
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#
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# Since the improper behavior is racy in nature, this test is not
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# expected to be able to reproduce the error reliably. Multiple
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# executions (or increasing the number of iterations) might be
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# required to reproduce the error with a misbehaving GDB.
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if { ![istarget "*-*-linux*"] } {
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return 0
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}
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standard_testfile
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
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return -1
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}
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for {set iteration 0} {$iteration < 10} {incr iteration} {
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with_test_prefix "iteration=$iteration" {
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if {![runto_main]} {
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return
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}
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gdb_test "continue" "\\\[Inferior 1 \\(.*\\) exited with code 01\\\]"
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}
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}
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