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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
121 lines
3.6 KiB
Plaintext
121 lines
3.6 KiB
Plaintext
# Copyright (C) 2015-2021 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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# This test verifies that threads created by the child fork are
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# properly handled. Specifically, GDB used to have a bug where it
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# would leave child fork threads stuck stopped, even though "info
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# threads" would show them running.
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#
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# See https://sourceware.org/bugzilla/show_bug.cgi?id=18600
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# In remote mode, we cannot continue debugging after all
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# inferiors have terminated, and this test requires that.
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if { [target_info exists gdb_protocol]
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&& [target_info gdb_protocol] == "remote" } {
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continue
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}
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standard_testfile
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proc do_test { detach_on_fork } {
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global GDBFLAGS
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global srcfile testfile
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global gdb_prompt
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set saved_gdbflags $GDBFLAGS
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set GDBFLAGS [concat $GDBFLAGS " -ex \"set non-stop on\""]
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if {[prepare_for_testing "failed to prepare" \
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$testfile $srcfile {debug pthreads}] == -1} {
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set GDBFLAGS $saved_gdbflags
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return -1
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}
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set GDBFLAGS $saved_gdbflags
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if ![runto_main] then {
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fail "can't run to main"
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return 0
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}
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gdb_test_no_output "set detach-on-fork $detach_on_fork"
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set test "continue &"
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gdb_test_multiple $test $test {
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-re "$gdb_prompt " {
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pass $test
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}
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}
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# gdbserver had a bug that resulted in reporting the fork child's
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# initial stop to gdb, which gdb does not expect, in turn
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# resulting in a broken session, like:
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#
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# [Thread 31536.31536] #16 stopped. <== BAD
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# [New Thread 31547.31547]
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# [Inferior 10 (process 31536) exited normally]
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# [New Thread 31547.31560]
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#
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# [Thread 31547.31547] #18 stopped. <== BAD
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# Cannot remove breakpoints because program is no longer writable. <== BAD
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# Further execution is probably impossible. <== BAD
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# [Inferior 11 (process 31547) exited normally]
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# [Inferior 1 (process 31454) exited normally]
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#
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# These variables track whether we see such broken behavior.
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set saw_cannot_remove_breakpoints 0
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set saw_thread_stopped 0
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set test "inferior 1 exited"
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gdb_test_multiple "" $test {
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-re "Cannot remove breakpoints" {
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set saw_cannot_remove_breakpoints 1
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exp_continue
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}
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-re "Thread \[^\r\n\]+ stopped\\." {
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set saw_thread_stopped 1
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exp_continue
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}
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-re "Thread \[^\r\n\]+ exited" {
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# Avoid timeout with check-read1
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exp_continue
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}
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-re "New Thread \[^\r\n\]+" {
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# Avoid timeout with check-read1
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exp_continue
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}
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-re "Inferior 1 \(\[^\r\n\]+\) exited normally" {
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pass $test
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}
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}
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gdb_assert !$saw_cannot_remove_breakpoints \
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"no failure to remove breakpoints"
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gdb_assert !$saw_thread_stopped \
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"no spurious thread stop"
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gdb_test "info threads" "No threads\." \
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"no threads left"
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gdb_test "info inferiors" \
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"Num\[ \t\]+Description\[ \t\]+Connection\[ \t\]+Executable\[ \t\]+\r\n\\* 1 \[^\r\n\]+" \
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"only inferior 1 left"
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}
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foreach detach_on_fork {"on" "off"} {
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with_test_prefix "detach-on-fork=$detach_on_fork" {
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do_test $detach_on_fork
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}
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}
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