1 # Copyright 2004-2023 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/>.
17 # Multi-threaded siginfo test.
19 if [target_info exists gdb,nosignals] {
20 verbose "Skipping siginfo-thread.exp because of nosignals."
24 if { ![supports_get_siginfo_type] } {
25 verbose "Skipping siginfo-thread.exp because of lack of support."
31 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" \
32 "${binfile}" executable {debug}] != "" } {
36 clean_restart $binfile
44 gdb_test "continue" "Thread .* received signal SIGSEGV.*" "continue to signal"
46 # Try to generate a core file, for a later test.
47 set gcorefile [standard_output_file $testfile.gcore]
48 set gcore_created [gdb_gcore_cmd $gcorefile "save a core file"]
51 set test "extract si_addr"
52 gdb_test_multiple "p \$_siginfo" "$test" {
53 -re "si_addr = ($hex).*$gdb_prompt $" {
54 set ssi_addr $expect_out(1,string)
59 set test "extract si_errno"
60 gdb_test_multiple "p \$_siginfo" "$test" {
61 -re "si_errno = (\[0-9\]\+).*$gdb_prompt $" {
62 set ssi_errno $expect_out(1,string)
67 set test "extract si_code"
68 gdb_test_multiple "p \$_siginfo" "$test" {
69 -re "si_code = (\[0-9\]\+).*$gdb_prompt $" {
70 set ssi_code $expect_out(1,string)
75 set test "extract si_signo"
76 gdb_test_multiple "p \$_siginfo" "$test" {
77 -re "si_signo = (\[0-9\]\+).*$gdb_prompt $" {
78 set ssi_signo $expect_out(1,string)
83 set bp_location [gdb_get_line_number "set breakpoint here"]
85 gdb_test "break $bp_location"
86 gdb_test "continue" ".* handler .*" "continue to handler"
88 gdb_test "p ssi_addr" " = \\(void \\*\\) $ssi_addr"
89 gdb_test "p ssi_errno" " = $ssi_errno"
90 gdb_test "p ssi_code" " = $ssi_code"
91 gdb_test "p ssi_signo" " = $ssi_signo"
93 gdb_test "thread 1" ".*"
94 # siginfo is available here -- it shows SIGSTOP -- so we test to make
95 # sure that we have a different signal from the SEGV thread.
96 gdb_test "p \$_siginfo.si_signo == $ssi_signo" " = 0" \
97 "test signal in main thread"
99 # Test siginfo preservation in core files.
100 if {$gcore_created} {
101 clean_restart $binfile
103 gdb_test "core $gcorefile" "Core was generated by.*" \
104 "core [file tail $gcorefile]"
106 gdb_test "p \$_siginfo.si_signo" " = $ssi_signo" \
107 "p \$_siginfo.si_signo from core file"
108 gdb_test "p \$_siginfo.si_errno" " = $ssi_errno" \
109 "p \$_siginfo.si_errno from core file"
110 gdb_test "p \$_siginfo.si_code" " = $ssi_code" \
111 "p \$_siginfo.si_code from core file"
112 gdb_test "p \$_siginfo._sifields._sigfault.si_addr" \
113 " = \\(void \\*\\) $ssi_addr" \
114 "p \$_siginfo._sifields._sigfault.si_addr from core file"
116 # We don't know which thread will be signalled, so we simply
117 # ensure that only one thread got a SEGV.
118 gdb_test_no_output "set variable \$count = 0"
119 foreach thread {1 2} {
120 gdb_test "thread $thread" ".*" "select thread $thread with core file"
122 "set variable \$count += (\$_siginfo.si_signo == $ssi_signo)" \
123 "update counter in thread $thread"
125 gdb_test "print \$count" " = 1"