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# Copyright 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 attaching to a multi-threaded process, in all combinations of:
#
# - set non-stop on/off
# - maint target non-stop off/on
# - "attach" vs "attach &"
if {![can_spawn_for_attach]} {
return 0
}
standard_testfile
# The test proper. See description above.
proc test {target_non_stop non_stop cmd} {
global binfile srcfile
global gdb_prompt
global decimal
global GDBFLAGS
# Number of threads started by the program.
set n_threads 10
save_vars { GDBFLAGS } {
append GDBFLAGS " -ex \"maint set target-non-stop $target_non_stop\""
append GDBFLAGS " -ex \"set non-stop $non_stop\""
clean_restart $binfile
}
set test_spawn_id [spawn_wait_for_attach $binfile]
set testpid [spawn_id_get_pid $test_spawn_id]
set attached 0
set test "attach"
set any "\[^\r\n\]*"
if {$cmd == "attach"} {
gdb_test_multiple "attach $testpid" $test {
-re "Attaching to program:${any}process $testpid\r\n.*$gdb_prompt " {
pass $test
set attached 1
}
}
if {!$attached} {
kill_wait_spawned_process $test_spawn_id
return
}
if {$non_stop} {
# In non-stop, we will see one stop per thread after
# the prompt.
set stops 0
set test "seen all stops"
for {set thread 1} { $thread <= $n_threads } { incr thread } {
gdb_test_multiple "" $test {
-re "Thread $::decimal ${any} stopped" {
incr stops
}
}
}
# If we haven't seen all stops, then the gdb_test_multiple
# in the loop above will have already issued a FAIL.
if {$stops == $n_threads} {
pass $test
}
}
gdb_test_multiple "info threads" "" {
-re "\\(running\\).*$gdb_prompt $" {
fail $gdb_test_name
}
-re "$gdb_prompt $" {
pass $gdb_test_name
}
}
} else {
gdb_test_multiple "attach $testpid &" $test {
-re "Attaching to program:${any}process $testpid\r\n.*$gdb_prompt " {
pass $test
set attached 1
}
}
if {!$attached} {
kill_wait_spawned_process $test_spawn_id
return
}
set running_count 0
gdb_test_multiple "info threads" "all threads running" {
-re "\\(running\\)" {
incr running_count
exp_continue
}
-re "Cannot execute this command while the target is running.*$gdb_prompt $" {
# Testing against a remote server that doesn't do
# non-stop mode. Explicitly interrupt. This doesn't
# test the same code paths in GDB, but it's still
# something.
gdb_test_multiple "interrupt" "" {
-re "$gdb_prompt " {
gdb_test_multiple "" $gdb_test_name {
-re "received signal SIGINT, Interrupt" {
pass $gdb_test_name
}
}
}
}
}
-re "$gdb_prompt $" {
gdb_assert {$running_count == ($n_threads + 1)} $gdb_test_name
}
}
}
gdb_test "detach" "Detaching from.*"
kill_wait_spawned_process $test_spawn_id
}
if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
return -1
}
foreach_with_prefix target-non-stop {"off" "on"} {
foreach_with_prefix non-stop {"off" "on"} {
foreach_with_prefix cmd {"attach" "attach&"} {
test ${target-non-stop} ${non-stop} ${cmd}
}
}
}
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