# manythreads.exp -- Expect script to test stopping many threads
-# Copyright (C) 2004 Free Software Foundation, Inc.
+# Copyright (C) 2004-2020 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 2 of the License, or
+# 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-# Please email any bugs, comments, and/or additions to this file to:
-# bug-gdb@prep.ai.mit.edu
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file was written by Jeff Johnston. (jjohnstn@redhat.com)
-if $tracelevel then {
- strace $tracelevel
+# This test requires sending ^C to interrupt the running target.
+if [target_info exists gdb,nointerrupts] {
+ verbose "Skipping manythreads.exp because of nointerrupts."
+ return
}
-set prms_id 0
-set bug_id 0
+standard_testfile
-set testfile "manythreads"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
+set opts { debug }
+if [info exists DEBUG] {
+ # make check RUNTESTFLAGS='gdb.threads/manythreads.exp DEBUG=1'
+ lappend opts "additional_flags=-DDEBUG"
+}
-if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
return -1
}
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-gdb_test "set print sevenbit-strings" ""
+clean_restart ${binfile}
+gdb_test_no_output "set print sevenbit-strings"
runto_main
# We'll need this when we send_gdb a ^C to GDB. Need to do it before we
# run the program and gdb starts saving and restoring tty states.
-# On Ultrix, we don't need it and it is really slow (because shell_escape
-# doesn't use vfork).
-if ![istarget "*-*-ultrix*"] then {
- gdb_test "shell stty intr '^C'" ""
-}
+gdb_test "shell stty intr '^C'" ".*"
set message "first continue"
gdb_test_multiple "continue" "first continue" {
}
}
+# Wait one second. This is better than the TCL "after" command, because
+# we don't lose GDB's output while we do it.
+remote_expect host 1 { timeout { } }
+
+# Send a Ctrl-C and wait for the SIGINT.
+
+proc interrupt_and_wait { message } {
+ global gdb_prompt
+
+ send_gdb "\003"
+
+ gdb_test_multiple "" $message {
+ -re "\\\[New \[^\]\]*\\\]\r\n" {
+ exp_continue
+ }
+ -re "\\\[\[^\]\]* exited\\\]\r\n" {
+ exp_continue
+ }
+ -re " received signal SIGINT.*$gdb_prompt $" {
+ pass "$message"
+ }
+ -re "$gdb_prompt $" {
+ # Note that with this regex order, if GDB emits [New
+ # Thread ...] output between "Thread NNN received signal"
+ # and the prompt, the "received signal" regex won't match.
+ # That's good, as if we see that happening, it's a
+ # regression.
+ #
+ # GDB makes sure to notify about signal stops, end of
+ # stepping ranges, etc., only after updating the thread
+ # list, otherwise that stop info would be easy to miss.
+ #
+ # A BROKEN example would be:
+ #
+ # ... pages of new threads output ...
+ # [New Thread NNN]
+ # ^C
+ # ... more new threads output ...
+ # [New Thread NNN]
+ # [New Thread NNN]
+ # Thread NNN received signal SIGINT, Interrupt.
+ # [New Thread NNN]
+ # [New Thread NNN]
+ # ... pages of new threads output ...
+ # [Switching to Thread NNN]
+ # foo () at foo.c:31
+ # 31 bar ();
+ #
+ fail $message
+ }
+ }
+}
+
# Send a Ctrl-C and verify that we can do info threads and continue
-after 1000
-send_gdb "\003"
-set message "stop threads 1"
-gdb_test_multiple "" "stop threads 1" {
- -re "\\\[New \[^\]\]*\\\]\r\n" {
- exp_continue
- }
- -re "\\\[\[^\]\]* exited\\\]\r\n" {
- exp_continue
- }
- -re "Thread \[^\n\]* executing\r\n" {
- exp_continue
- }
- -re "Program received signal SIGINT.*$gdb_prompt $" {
- pass "$message"
- }
- timeout {
- fail "$message (timeout)"
- }
+interrupt_and_wait "stop threads 1"
+
+set cmd "info threads"
+set ok 0
+gdb_test_multiple $cmd $cmd {
+ -re " 1 *Thread " {
+ set ok 1
+ exp_continue
+ }
+ -re ".*\r\n" {
+ # Eat this line and continue, to prevent the buffer overflowing.
+ exp_continue
+ }
+ -re "$gdb_prompt $" {
+ if { $ok } {
+ pass $cmd
+ } else {
+ fail $cmd
+ }
+ }
}
-gdb_test "info threads" ".*1 Thread.*.LWP.*"
+gdb_test_no_output "thread name zardoz" "give a name to the thread"
+gdb_test "info threads" ".*zardoz.*" "check thread name"
set message "second continue"
gdb_test_multiple "continue" "second continue" {
}
}
-# Send another Ctrl-C and verify that we can do info threads and quit
-after 1000
-send_gdb "\003"
-set message "stop threads 2"
-gdb_test_multiple "" "stop threads 2" {
+# Wait another second. If the program stops on its own, GDB has failed
+# to handle duplicate SIGINTs sent to multiple threads.
+set failed 0
+remote_expect host 1 {
-re "\\\[New \[^\]\]*\\\]\r\n" {
- exp_continue
+ exp_continue -continue_timer
}
-re "\\\[\[^\]\]* exited\\\]\r\n" {
- exp_continue
+ exp_continue -continue_timer
}
- -re "Thread \[^\n\]* executing\r\n" {
+ -re " received signal SIGINT.*$gdb_prompt $" {
+ if { $failed == 0 } {
+ fail "check for duplicate SIGINT"
+ }
+ send_gdb "continue\n"
+ set failed 1
exp_continue
}
- -re "Program received signal SIGINT.*$gdb_prompt $" {
- pass "stop threads 2"
+ timeout {
+ if { $failed == 0 } {
+ pass "check for duplicate SIGINT"
+ }
}
-}
+}
+
+# Send another Ctrl-C and verify that we can do info threads and quit
+interrupt_and_wait "stop threads 2"
gdb_test_multiple "quit" "GDB exits after stopping multithreaded program" {
- -re "The program is running. Exit anyway\\? \\(y or n\\) $" {
+ -re "Quit anyway\\? \\(y or n\\) $" {
send_gdb "y\n"
exp_continue
}
projects / deliverable / binutils-gdb.git / blobdiff