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# Copyright (C) 2021-2023 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 we can access memory while the inferior is running.
standard_testfile
if {[build_executable "failed to prepare" $testfile $srcfile {debug}] == -1} {
return -1
}
# The test proper. NON_STOP indicates whether we're testing in
# non-stop, or all-stop mode.
proc test { non_stop } {
global srcfile binfile
global gdb_prompt
global GDBFLAGS
global decimal
save_vars { GDBFLAGS } {
append GDBFLAGS " -ex \"set non-stop $non_stop\""
clean_restart ${binfile}
}
if ![runto_main] {
return -1
}
# If debugging with target remote, check whether the all-stop variant
# of the RSP is being used. If so, we can't run the background tests.
if {!$non_stop
&& [target_info exists gdb_protocol]
&& ([target_info gdb_protocol] == "remote"
|| [target_info gdb_protocol] == "extended-remote")} {
gdb_test_multiple "maint show target-non-stop" "" {
-wrap -re "(is|currently) on.*" {
}
-wrap -re "(is|currently) off.*" {
unsupported "can't issue commands while target is running"
return 0
}
}
}
delete_breakpoints
if {$non_stop == "off"} {
set cmd "continue &"
} else {
set cmd "continue -a &"
}
gdb_test_multiple $cmd "continuing" {
-re "Continuing\.\r\n$gdb_prompt " {
pass $gdb_test_name
}
}
# Check we can read/write variables.
# Check that we can read the counter variable, and that the
# counter is increasing, meaning the process really is running.
sleep 1
set global_counter1 \
[get_integer_valueof "global_counter" 0 \
"get global_counter once"]
sleep 1
set global_counter2 \
[get_integer_valueof "global_counter" 0 \
"get global_counter twice"]
gdb_assert {$global_counter1 != 0 \
&& $global_counter2 != 0 \
&& $global_counter1 != $global_counter2} \
"value changed"
# Check that we can write variables.
gdb_test "print global_var" " = 123" \
"print global_var before writing"
gdb_test "print global_var = 321" " = 321" \
"write to global_var"
gdb_test "print global_var" " = 321" \
"print global_var after writing"
gdb_test "print global_var = 123" " = 123" \
"write to global_var again"
# Check we can set a breakpoint while the process is running. The
# breakpoint should hit immediately.
set any "\[^\r\n\]*"
gdb_test_multiple "b maybe_stop_here" "" {
-re "Breakpoint $decimal at $any: file $any${srcfile}, line $decimal.\r\n$gdb_prompt " {
pass $gdb_test_name
}
}
gdb_test_multiple "" "breakpoint hits" {
-re "Breakpoint $decimal, maybe_stop_here \\(\\) at $any${srcfile}:$decimal\r\n" {
pass "$gdb_test_name"
}
}
}
foreach non_stop { "off" "on" } {
set stop_mode [expr ($non_stop=="off")?"all-stop":"non-stop"]
with_test_prefix "$stop_mode" {
test $non_stop
}
}
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