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This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
100 lines
3.9 KiB
Plaintext
100 lines
3.9 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2009-2022 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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# Test GDB can cope with two watchpoints being hit by different threads at the
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# same time, GDB reports one of them and after "continue" to report the other
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# one GDB should not be confused by differently set watchpoints that time.
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# This is the goal of "reorder1". "reorder0" tests the basic functionality of
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# two watchpoints being hit at the same time, without reordering them during the
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# stop. The formerly broken functionality is due to the all-stop mode default
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# "show breakpoint always-inserted" being "off". Formerly the remembered hit
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# could be assigned during continuation of a thread with pending SIGTRAP to the
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# different/new watchpoint, just based on the watchpoint/debug register number.
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if {[skip_hw_watchpoint_access_tests]
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|| [skip_hw_watchpoint_multi_tests]
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|| ![istarget *-*-linux*]} {
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return 0
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}
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standard_testfile
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" ${binfile} executable [list debug additional_flags=-lrt]] != "" } {
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return -1
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}
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foreach reorder {0 1} { with_test_prefix "reorder$reorder" {
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clean_restart $testfile
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gdb_test "set can-use-hw-watchpoints 1"
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if ![runto_main] {
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return -1
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}
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# Use "rwatch" as "watch" would report the watchpoint changed just based on its
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# read memory value during a stop by unrelated event. We are interested in not
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# losing the hardware watchpoint trigger.
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gdb_test "rwatch thread1_rwatch" "Hardware read watchpoint \[0-9\]+: thread1_rwatch"
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set test "rwatch thread2_rwatch"
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gdb_test_multiple $test $test {
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-re "Target does not support this type of hardware watchpoint\\.\r\n$gdb_prompt $" {
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# ppc64 supports at most 1 hw watchpoints.
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unsupported $test
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return
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}
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-re "Hardware read watchpoint \[0-9\]+: thread2_rwatch\r\n$gdb_prompt $" {
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pass $test
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}
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}
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gdb_breakpoint [gdb_get_line_number "break-at-exit"]
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# The watchpoints can happen in arbitrary order depending on random:
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# SEL: Found 2 SIGTRAP events, selecting #[01]
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# As GDB contains no srand() on the specific host/OS it will behave always the
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# same. Such order cannot be guaranteed for GDB in general.
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gdb_test "continue" \
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"Hardware read watchpoint \[0-9\]+: thread\[12\]_rwatch\r\n\r\nValue = 0\r\n0x\[0-9a-f\]+ in thread\[12\]_func .*" \
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"continue a"
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if $reorder {
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# GDB orders watchpoints by their addresses so inserting new variables
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# with lower addresses will shift the former watchpoints to higher
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# debug registers.
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gdb_test "rwatch unused1_rwatch" "Hardware read watchpoint \[0-9\]+: unused1_rwatch"
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gdb_test "rwatch unused2_rwatch" "Hardware read watchpoint \[0-9\]+: unused2_rwatch"
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}
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gdb_test "continue" \
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"Hardware read watchpoint \[0-9\]+: thread\[12\]_rwatch\r\n\r\nValue = 0\r\n0x\[0-9a-f\]+ in thread\[12\]_func .*" \
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"continue b"
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# While the debug output itself is not checked in this testcase one bug was
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# found in the DEBUG_INFRUN code path.
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gdb_test "set debug infrun 1"
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set prompt "$gdb_prompt \\\[infrun\\\] fetch_inferior_event: exit\r\n$"
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gdb_test_multiple "continue" "continue to breakpoint: break-at-exit" -prompt $prompt {
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-re ".*break-at-exit.*$prompt$" {
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pass $gdb_test_name
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}
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}
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}}
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