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# Copyright (C) 2013-2021 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
# 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 <>.
# Regression test for PR15693. A breakpoint with a condition that
# calls a function that evaluates false would result in a spurious
# *running event sent to the frontend each time the breakpoint is hit
# (and the target re-resumed). Like:
# -exec-continue
# ^running
# *running,thread-id="all"
# (gdb)
# *running,thread-id="all"
# *running,thread-id="all"
# *running,thread-id="all"
# *running,thread-id="all"
# *running,thread-id="all"
# ...
load_lib mi-support.exp
set MIFLAGS "-i=mi"
# Run either the multi-threaded or the single-threaded variant of the
# test, as determined by VARIANT.
proc test { variant } {
global gdb_test_file_name
global testfile srcdir subdir srcfile srcfile2 binfile
global mi_gdb_prompt async
with_test_prefix "$variant" {
if [mi_gdb_start] {
set options {debug}
if {$variant == "mt" } {
lappend options "pthreads"
# Don't use standard_testfile as we need a different binary
# for each variant.
set testfile $gdb_test_file_name-$variant
set binfile [standard_output_file ${testfile}]
set srcfile $testfile.c
set srcfile2 $gdb_test_file_name.c
if {[build_executable "failed to prepare" \
$testfile \
"${srcfile} ${srcfile2}" \
$options] == -1} {
return -1
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}
mi_runto test
# Leave the breakpoint at 'test' set, on purpose. The next
# resume shall emit a single '*running,thread-id="all"', even
# if GDB needs to step over a breakpoint (that is, even if GDB
# needs to run only one thread for a little bit).
set bp_location [gdb_get_line_number "set breakpoint here" $srcfile2]
set bp_location_end [gdb_get_line_number "set end breakpoint here" $srcfile2]
mi_gdb_test "-break-insert -c return_false() $srcfile2:$bp_location" ".*" \
"insert conditional breakpoint"
mi_gdb_test "-break-insert $srcfile2:$bp_location_end" ".*" \
"insert end breakpoint"
set msg "no spurious *running notifications"
send_gdb "-exec-continue\n"
gdb_expect {
-re "\\*running.*\\*running.*\\*stopped" {
fail $msg
-re "\\^running\r\n\\*running,thread-id=\"all\"\r\n${mi_gdb_prompt}.*\\*stopped" {
pass $msg
timeout {
fail "$msg (timeout)"
# In sync mode, there's an extra prompt after *stopped. Consume it.
if {!$async} {
gdb_expect {
-re "$mi_gdb_prompt" {
# Single-threaded.
test "st"
# Multi-threaded.
test "mt"