1 # Copyright (C) 2015 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # This test spawns a few threads that constantly trip on a breakpoint
17 # that does not cause a user-visible stop. While one of those
18 # breakpoints is being handled, the main thread exits the whole
19 # process. The result is that the current thread for which GDB is
20 # handling the event disappears too and any attempt to access
21 # register/memory now errors out. GDB and GDBserver should be able to
22 # handle this scenario gracefully.
24 # See https://sourceware.org/bugzilla/show_bug.cgi?id=18749
28 set linenum [gdb_get_line_number "set break here"]
30 if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
34 # The test proper. If COND_BP_TARGET is true, then test with
35 # conditional breakpoints evaluated on the target side, if possible.
37 proc do_test { non_stop cond_bp_target } {
43 set saved_gdbflags $GDBFLAGS
44 set GDBFLAGS [concat $GDBFLAGS " -ex \"set non-stop $non_stop\""]
45 clean_restart $binfile
46 set GDBFLAGS $saved_gdbflags
48 if ![runto_main] then {
49 fail "Can't run to main"
53 # Whether it's known that the test fails.
56 if {![gdb_is_target_remote]} {
59 if {!$cond_bp_target} {
60 # Leaving breakpoint evaluation to GDB exposes failures
61 # similar to native debugging.
62 gdb_test_no_output "set remote conditional-breakpoints-packet off"
65 set test "show remote conditional-breakpoints-packet"
66 gdb_test_multiple $test $test {
67 -re "currently enabled\.\r\n$gdb_prompt $" {
70 -re "currently disabled\.\r\n$gdb_prompt $" {
71 unsupported "no support for target-side conditional breakpoints"
79 gdb_test "break $linenum if zero == 1" \
81 "set breakpoint that evals false"
84 gdb_test_multiple $test $test {
92 # Setup the kfail upfront in order to also catch GDB internal
95 setup_kfail "gdb/18749" "*-*-*"
98 set test "inferior 1 exited"
99 gdb_test_multiple "" $test {
100 -re "Inferior 1 \(\[^\r\n\]+\) exited normally" {
103 # Clear the kfail to avoid a PASS -> KPASS dance across
105 clear_kfail "*-*-linux*"
110 # Several errors end up at the top level, and printing the
112 fail "$test (prompt)"
114 -re "Cannot access memory" {
115 fail "$test (memory error)"
118 fail "$test (GDB died)"
123 # No use testing further.
127 gdb_test "info threads" "No threads\." \
131 # Wrapper for foreach that calls with_test_prefix on each iteration,
132 # including the iterator's current value in the prefix.
134 proc foreach_with_prefix {var list body} {
136 foreach myvar $list {
137 with_test_prefix "$var=$myvar" {
143 foreach_with_prefix non_stop {"on" "off"} {
144 foreach_with_prefix cond_bp_target {1 0} {
145 do_test $non_stop $cond_bp_target