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# Copyright 2012-2024 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 'set breakpoint condition-evaluation' settings
# The allow_hw_watchpoint_tests checks if watchpoints are supported by the
# processor. On PowerPC, the check runs a small test program under gdb
# to determine if the Power processor supports HW watchpoints. The check
# must be done before starting the test so as to not disrupt the execution
# of the actual test.
set allow_hw_watchpoint_tests_p [allow_hw_watchpoint_tests]
standard_testfile
if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
return -1
}
if {![runto_main]} {
return 0
}
set test_host "set breakpoint condition-evaluation host"
set test_auto "set breakpoint condition-evaluation auto"
set test_target "set breakpoint condition-evaluation target"
gdb_test_no_output $test_host
gdb_test_no_output $test_auto
# If target-side condition evaluation is not supported, this warning will be
# displayed.
set warning "warning: Target does not support breakpoint condition evaluation.\r\nUsing host evaluation mode instead."
gdb_test_multiple $test_target $test_target {
-re "$warning\r\n$gdb_prompt $" {
unsupported $test_target
return -1
}
-re "^$test_target\r\n$gdb_prompt $" {
pass $test_target
}
}
# We now know that the target supports target-side conditional
# evaluation. Now make sure we can force-disable the
# ConditionalBreakpoints RSP feature.
if [gdb_protocol_is_remote] {
gdb_test \
"set remote conditional-breakpoints-packet off" \
"Support for the 'ConditionalBreakpoints' packet on the current remote target is set to \"off\"."
gdb_test $test_target "$warning" \
"set breakpoint condition-evaluation target, with support disabled"
# Confirm we can re-enable it.
gdb_test \
"set remote conditional-breakpoints-packet on" \
"Support for the 'ConditionalBreakpoints' packet on the current remote target is set to \"on\"."
gdb_test_no_output $test_target "restore $test_target"
}
# Test setting a condition in a breakpoint. BREAK_COMMAND is the
# break/hwatch command to test.
#
proc test_break { break_command } {
global gdb_prompt
with_test_prefix "$break_command" {
delete_breakpoints
with_test_prefix "true condition" {
gdb_test "$break_command foo" "reakpoint.* at .*"
# A condition that evals true.
gdb_test "condition \$bpnum cond_global==0" ".*"
set can_do_cmd 0
set test "continue"
gdb_test_multiple $test $test {
-re "You may have requested too many.*$gdb_prompt $" {
pass $test
}
-re "Breakpoint .*, foo .*$gdb_prompt $" {
pass $test
set can_do_cmd 1
}
}
if { !$can_do_cmd } {
unsupported "no target support"
return
}
}
with_test_prefix "false condition" {
delete_breakpoints
gdb_test "$break_command foo" ".*reakpoint .* at .*"
# A condition that evals false.
gdb_test "condition \$bpnum cond_global==1" ".*"
gdb_test "b bar" "Breakpoint .* at .*"
gdb_test "continue" "Breakpoint .*, bar .*"
}
}
}
# Test setting conditions in watchpoints. WATCH_COMMAND is the watch
# command to test.
#
proc test_watch { watch_command } {
global gdb_prompt
global allow_hw_watchpoint_tests_p
with_test_prefix "$watch_command" {
if {!$allow_hw_watchpoint_tests_p} {
unsupported "no target support"
return
}
with_test_prefix "true condition" {
delete_breakpoints
gdb_test "$watch_command global" ".*atchpoint .*: global.*"
# A condition that evals true.
gdb_test "condition \$bpnum cond_global==0" ".*"
set can_do_cmd 0
set test "continue"
gdb_test_multiple $test $test {
-re "You may have requested too many.*$gdb_prompt $" {
pass $test
}
-re "atchpoint .*: global.*$gdb_prompt $" {
pass $test
set can_do_cmd 1
}
}
if { !$can_do_cmd } {
unsupported "no target support"
return
}
}
with_test_prefix "false condition" {
delete_breakpoints
gdb_test "$watch_command global" ".*atchpoint .*: global.*"
# A condition that evals false.
gdb_test "condition \$bpnum cond_global==1" ".*"
gdb_test "b bar" "Breakpoint .* at .*"
gdb_test "continue" "Breakpoint .*, bar .*"
}
}
}
foreach break_command { "break" "hbreak" } {
test_break $break_command
}
foreach watch_command { "watch" "rwatch" "awatch" } {
test_watch $watch_command
}
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