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# Copyright (C) 2014 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Test that when a step-over trips on a watchpoint, that watchpoint is
# reported.
standard_testfile
set executable ${testfile}
# This test verifies that a watchpoint is detected in a multithreaded
# program so the test is only meaningful on a system with hardware
# watchpoints.
if {[skip_hw_watchpoint_tests]} {
return 0
}
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
executable [list debug "incdir=${objdir}"]] != "" } {
return -1
}
proc do_test { with_bp } {
global executable
if ${with_bp} {
set prefix "with thread-specific bp"
} else {
set prefix "no thread-specific bp"
}
with_test_prefix $prefix {
# Cover both stepping and non-stepping execution commands.
foreach command {"step" "next" "continue" } {
with_test_prefix $command {
clean_restart $executable
if ![runto_main] {
continue
}
gdb_breakpoint [gdb_get_line_number "set wait-thread breakpoint here"]
gdb_continue_to_breakpoint "run to wait-thread breakpoint"
gdb_test "info threads" "2 .*\\\* 1.*" "info threads shows all threads"
gdb_test_no_output "set scheduler-locking on"
delete_breakpoints
gdb_breakpoint [gdb_get_line_number "set breakpoint child here"]
gdb_test "thread 2" "Switching to .*"
gdb_continue_to_breakpoint "run to breakpoint in thread 2"
gdb_test "p counter = 0" " = 0" "unbreak loop in thread 2"
gdb_test "p watch_me = 0" " = 0" "clear watch_me"
gdb_test "watch watch_me" "Hardware watchpoint .*"
if ${with_bp} {
# Set a thread-specific breakpoint (for the wrong
# thread) right after instruction that triggers
# the watchpoint.
set linenum [gdb_get_line_number "set thread-specific breakpoint here"]
gdb_test "b $linenum thread 1"
}
# Switch back to thread 1 and disable scheduler locking.
gdb_test "thread 1" "Switching to .*"
gdb_test_no_output "set scheduler-locking off"
# Thread 2 is still stopped at a breakpoint that needs to be
# stepped over before proceeding thread 1. However, right
# where the step-over lands there's another breakpoint
# installed, which should trap and be reported to the user.
gdb_test "$command" "Hardware watchpoint.*: watch_me.*New value = 1.*"
}
}
}
}
do_test 0
do_test 1
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