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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.
117 lines
3.9 KiB
Plaintext
117 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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# This test verifies that a local watchpoint isn't deleted when a
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# thread other than the thread the local watchpoint was set in stops
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# for a breakpoint.
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if {[skip_hw_watchpoint_multi_tests]} {
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return 0
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}
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standard_testfile
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if {[gdb_compile_pthreads \
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"${srcdir}/${subdir}/${srcfile}" \
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"${binfile}" executable {debug} ] != "" } {
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return -1
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}
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clean_restart ${binfile}
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gdb_test_no_output "set can-use-hw-watchpoints 1" ""
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if ![runto_main] then {
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return
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}
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set inc_line_1 [gdb_get_line_number "Loop increment 1"]
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set inc_line_2 [gdb_get_line_number "Loop increment 2"]
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set bkpt_here [gdb_get_line_number "set breakpoint here"]
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# Run to the loop within thread_function0, so we can set our local
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# watchpoint.
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gdb_test "break ${srcfile}:${inc_line_1}" \
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"Breakpoint 2 at .*: file .*${srcfile}, line .*" \
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"breakpoint on thread_function0"
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gdb_test "continue" \
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".*Breakpoint 2.*thread_function0.*" \
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"continue to thread_function0"
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delete_breakpoints
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# Set the local watchpoint, and confirm that it traps as expected.
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gdb_test "watch *myp" \
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"Hardware watchpoint 3\: \\*myp.*" \
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"set local watchpoint on *myp"
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gdb_test "continue" \
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"Hardware watchpoint.*Old value.*New value.*thread_function0.*" \
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"local watchpoint triggers"
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delete_breakpoints
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# Recreate the watchpoint, but this time with a condition we know
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# won't trigger. This is so the watchpoint is inserted, and the
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# target reports events, but GDB doesn't stop for them. We want to
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# hit the breakpoints on the other thread, and make sure this
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# watchpoint isn't deleted then.
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gdb_test "watch *myp if trigger != 0" \
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"Hardware watchpoint 4\: \\*myp.*" \
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"set local watchpoint on *myp, with false conditional"
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# Run to a breakpoint on a different thread. The previous local
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# watchpoint should not be deleted with the standard 'the program has
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# left the block in which its expression is valid', because the
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# thread_function0 thread should still be running in the loop.
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gdb_test "break ${srcfile}:${inc_line_2}" \
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"Breakpoint 5 at .*: file .*${srcfile}, line .*" \
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"breakpoint on the other thread"
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gdb_test "continue" \
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"Breakpoint 5, thread_function1.*" \
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"the other thread stopped on breakpoint"
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# Delete the new breakpoint, we don't need it anymore.
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gdb_test_no_output "delete 5" ""
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# Check if the local watchpoint hasn't been deleted (is still listed).
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# This is simpler to check than expecting 'the program has left ...',
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# and, is immune to string changes in that warning.
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gdb_test "info breakpoints" \
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".*4.*hw watchpoint.*keep.*y.*\\*myp.*" \
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"local watchpoint is still in breakpoint list"
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# Make the watchpoint condition eval true.
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gdb_test_no_output "set trigger=1" "let local watchpoint trigger"
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gdb_test "continue" \
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"Hardware watchpoint.*Old value.*New value.*thread_function0.*" \
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"local watchpoint still triggers"
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# Confirm that the local watchpoint is indeed deleted when
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# thread_function0 returns.
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gdb_test_no_output "set *myp=0" "let thread_function0 return"
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gdb_test "break ${srcfile}:${bkpt_here}" \
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"Breakpoint 6 at .*: file .*${srcfile}, line .*" \
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"breakpoint on thread_function0's caller"
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gdb_test "continue" \
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".*Watchpoint.*deleted.*" \
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"local watchpoint automatically deleted"
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