forked from Imagelibrary/binutils-gdb
213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
78 lines
2.4 KiB
Plaintext
78 lines
2.4 KiB
Plaintext
# Copyright 2015-2023 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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# Test running a program that spawns enough threads that the tid of an
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# exited thread is reused. GDB should not crash when this happens.
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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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if ![runto_main] {
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return -1
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}
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delete_breakpoints
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# Avoid dumping a ton of thread create/exit info in the logs.
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gdb_test_no_output "set print thread-events off"
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gdb_breakpoint "after_count"
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gdb_continue_to_breakpoint "after_count"
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# Get value of VARIABLE in the inferior.
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proc getvar {variable} {
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global decimal
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global gdb_prompt
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set value 0
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set msg "get $variable"
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gdb_test_multiple "print $variable" $msg {
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-re " = ($decimal)\r\n$gdb_prompt $" {
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set value $expect_out(1,string)
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pass $msg
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}
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}
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return $value
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}
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set reuse_time [getvar "reuse_time"]
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# Now the real test. Run to a breakpoint in a thread that exits
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# immediately once resumed. The thread ends up left on the thread
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# list, marked exited (exactly because it's the selected thread).
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gdb_breakpoint "do_nothing_thread_func"
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gdb_continue_to_breakpoint "do_nothing_thread_func"
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delete_breakpoints
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# Let the program continue, constantly spawning short-lived threads
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# (one at a time). On some targets, after a bit, a new thread reuses
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# the tid of the old exited thread that we still have selected. GDB
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# should not crash in this situation. Of course, if the tid number
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# space is shared between all processes in the system (such as on
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# Linux), there's a chance that some other process grabs the TID, but
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# that can never cause a spurious test fail.
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gdb_breakpoint "after_reuse_time"
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# Higher than what the test program sleeps before exiting.
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set timeout [expr $reuse_time * 2]
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gdb_continue_to_breakpoint "after_reuse_time"
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