1# Copyright (C) 2008-2024 Free Software Foundation, Inc.
2
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.
7#
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.
12#
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/>.
15
16# Test use of unwind-on-signal when a hand function call that gets interrupted
17# by a signal in another thread.
18
19set NR_THREADS 4
20
21standard_testfile interrupted-hand-call.c
22
23# Some targets can't do function calls, so don't even bother with this
24# test.
25require {!target_info exists gdb,cannot_call_functions}
26
27if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "additional_flags=-DNR_THREADS=$NR_THREADS"]] != "" } {
28    return -1
29}
30
31clean_restart ${binfile}
32
33if { ![runto_main] } {
34    return 0
35}
36
37gdb_test "break all_threads_running" \
38         "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
39         "breakpoint on all_threads_running"
40
41# Run the program and make sure GDB reports that we stopped after
42# hitting breakpoint 2 in all_threads_running().
43
44gdb_test "continue" \
45         ".*Breakpoint 2, all_threads_running ().*" \
46         "run to all_threads_running"
47
48# NOTE: Don't turn on scheduler-locking here.
49# We want the main thread (hand_call_with_signal) and
50# thread 1 (sigabrt_handler) to both run.
51
52# Do turn on unwind-on-signal.
53# We want to test gdb handling of the current thread changing when
54# unwindonsignal is in effect.
55gdb_test_no_output "set unwind-on-signal on" \
56          "setting unwindonsignal"
57gdb_test "show unwind-on-signal" \
58          "Unwinding of stack .* is on." \
59          "showing unwindonsignal"
60
61gdb_test "call hand_call_with_signal()" \
62    "The program received a signal.*" \
63    "hand-call interrupted by signal in another thread"
64
65# Verify dummy stack frame is still present.
66# ??? Should unwindonsignal still apply even if the program stops
67# because of a signal in another thread?
68
69gdb_test "maint print dummy-frames" ".*stack=.*" "dummy stack frame present"
70
71# GDB 6.8 would perform the unwindonsignal, but on the thread that stopped,
72# not the thread with the hand-called function.
73# This is tested by verifying only one thread has main in its backtrace.
74
75gdb_test_multiple "thread apply all bt" "wrong thread not unwound" {
76    -re ".* in main .* in main .*$gdb_prompt $" {
77          fail "wrong thread not unwound"
78    }
79    -re ".* in main .*$gdb_prompt $" {
80          pass "wrong thread not unwound"
81    }
82}
83
84# Continuing now should exit the hand-call and pop the dummy frame.
85
86gdb_test "continue" ".*" "finish hand-call"
87
88gdb_test_multiple "maint print dummy-frames" "dummy frame popped" {
89    -re ".*stack=.*$gdb_prompt $" {
90          fail "dummy frame popped"
91    }
92    -re ".*$gdb_prompt $" {
93          pass "dummy frame popped"
94    }
95}
96
97# Continue one last time, the program should exit normally.
98
99gdb_continue_to_end "" continue 1
100