1 # Copyright 1997-2014 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 if [target_info exists gdb,nosignals] {
17 verbose "Skipping signals.exp because of nosignals."
24 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
29 # Create and source the file that provides information about the compiler
30 # used to compile the test case.
31 if [get_compiler_info] {
35 if {$hp_cc_compiler} {
44 # This will need to be updated as the exact list of signals changes,
45 # but I want to test that GDB_SIGNAL_0, GDB_SIGNAL_DEFAULT, and
46 # GDB_SIGNAL_UNKNOWN are skipped.
48 proc test_handle_all_print {} {
50 # Increase timeout and expect input buffer for large output from gdb.
51 # Allow blank or TAB as whitespace characters.
52 set oldtimeout $timeout
53 set timeout [expr "$timeout + 60"]
54 verbose "Timeout is now $timeout seconds" 2
55 if { ![istarget "*-*-linux*"]
56 && ( [istarget "*-*-gnu*"]
57 || [istarget "*-*-mach*"] ) } {
58 gdb_test_sequence "handle all print" "" \
60 "Signal\[ \]+Stop\[ \]+Print\[ \]+Pass to program\[ \]+Description\r\nSIGHUP\[ \]+Yes\[ \]+Yes\[ \]+Yes\[ \]+Hangup"
61 "SIG63\[ \]+Yes\[ \]+Yes\[ \]+Yes\[ \]+Real-time event 63"
62 "EXC_BREAKPOINT\[ \]+Yes\[ \]+Yes\[ \]+Yes\[ \]+Breakpoint"
65 gdb_test_sequence "handle all print" "" \
67 "Signal\[ \]+Stop\[ \]+Print\[ \]+Pass to program\[ \]+Description\r\nSIGHUP\[ \]+Yes\[ \]+Yes\[ \]+Yes\[ \]+Hangup"
68 "SIG63\[ \]+Yes\[ \]+Yes\[ \]+Yes\[ \]+Real-time event 63"
71 set timeout $oldtimeout
72 verbose "Timeout restored to $timeout seconds" 2
76 clean_restart $binfile
78 if [runto_main] then {
80 # Since count is a static variable outside main, runto_main is no
81 # guarantee that count will be 0 at this point.
83 gdb_test_no_output "set variable count = 0"
85 # Test an inferior function call that takes a signal that hits a
86 # breakpoint (with a false condition). When GDB tries to run the
87 # stack dummy, it will hit the breakpoint at handler. Provided it
88 # doesn't lose its cool, this is not a problem, it just has to
89 # note that the breakpoint condition is false and keep going.
91 # ...setup an always false conditional breakpoint
93 gdb_test "break handler if 0" "Breakpoint \[0-9\]+ .*"
94 gdb_test_no_output "set \$handler_breakpoint_number = \$bpnum"
98 gdb_test "next" "signal \\(SIGUSR1.*" "next to signal"
99 gdb_test "next" "alarm \\(.*" "next to alarm #1"
100 gdb_test "next" "\\+\\+count; /\\* first \\*/" \
104 # ...call the function
106 gdb_test "p func1 ()" "^p func1 \\(\\)\r\n.\[0-9\]* = $void" \
109 # ...veryfiy that the cout was updated
111 gdb_test "p count" "= 2" "p count #1"
113 # Now run the same test but with a breakpoint that does stop.
115 # ...set up the breakpoint and signal
117 gdb_test "condition \$handler_breakpoint_number" "now unconditional\\."
118 gdb_test "next" "alarm \\(.*" "next to alarm #2"
119 gdb_test "next" "\\+\\+count; /\\* second \\*/" \
123 # ...call the function, which is immediatly interrupted
125 gdb_test "p func1 ()" \
126 "Breakpoint \[0-9\]*, handler.*
127 The program being debugged stopped while in a function called from GDB.*" \
130 # ...verify the backtrace
132 gdb_test "backtrace" \
133 "#0 handler.*#1 .signal handler called.*#2 func1.*#3 .function called from gdb.*#4.*main.*" \
134 "backtrace from handler when calling func1"
136 # ...and continue (silently returning)
138 gdb_test "continue" "Continuing\\."
140 # ...and then count should have been incremented
142 gdb_test "p count" "= 5" "p count #2"
145 # Verify that "info signals" produces reasonable output.
147 gdb_test "info signals" "SIGHUP.*SIGINT.*SIGQUIT.*SIGILL.*SIGTRAP.*SIGABRT.*SIGEMT.*SIGFPE.*SIGKILL.*SIGBUS.*SIGSEGV.*SIGSYS.*SIGPIPE.*SIGALRM.*SIGTERM.*SIGURG.*SIGSTOP.*SIGTSTP.*SIGCONT.*SIGCHLD.*SIGTTIN.*SIGTTOU.*SIGIO.*SIGXCPU.*SIGXFSZ.*SIGVTALRM.*SIGPROF.*SIGWINCH.*SIGLOST.*SIGUSR1.*SIGUSR2.*SIGPWR.*SIGPOLL.*SIGWIND.*SIGPHONE.*SIGWAITING.*SIGLWP.*SIGDANGER.*SIGGRANT.*SIGRETRACT.*SIGMSG.*SIGSOUND.*SIGSAK.*SIGPRIO.*SIG33.*SIG34.*SIG35.*SIG36.*SIG37.*SIG38.*SIG39.*SIG40.*SIG41.*SIG42.*SIG43.*SIG44.*SIG45.*SIG46.*SIG47.*SIG48.*SIG49.*SIG50.*SIG51.*SIG52.*SIG53.*SIG54.*SIG55.*SIG56.*SIG57.*SIG58.*SIG59.*SIG60.*SIG61.*SIG62.*SIG63.*Use the \"handle\" command to change these tables.*" \
150 # Verify that "info signal" correctly handles an argument, be it a
151 # symbolic signal name, or an integer ID.
153 gdb_test "info signal SIGTRAP" \
154 "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
155 "info signal SIGTRAP"
157 gdb_test "info signal 5" \
158 "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
161 # Verify that "handle" with illegal arguments is gracefully, um,
165 "Argument required .signal to handle.*" \
166 "handle without arguments"
168 gdb_test "handle SIGFOO" \
169 "Unrecognized or ambiguous flag word: \"SIGFOO\".*" \
170 "handle with bogus SIG"
172 gdb_test "handle SIGHUP frump" \
173 "Unrecognized or ambiguous flag word: \"frump\".*" \
174 "handle SIG with bogus action"
176 # Verify that "handle" can take multiple actions per SIG, and that
177 # in the case of conflicting actions, that the rightmost action
180 gdb_test "handle SIGHUP print noprint" \
181 "SIGHUP\[ \t\]*No\[ \t\]*No\[ \t\]*Yes\[ \t\]*Hangup.*" \
182 "handle SIG with multiple conflicting actions"
184 # Exercise all the various actions. (We don't care what the
185 # outcome is, this is just to ensure that they all can be parsed.)
187 gdb_test "handle SIGHUP print noprint stop nostop ignore noignore pass nopass" \
189 "handle SIG parses all legal actions"
191 # Verify that we can "handle" multiple signals at once,
192 # interspersed with actions.
194 gdb_test "handle SIG63 print SIGILL" \
195 "SIGILL\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Illegal instruction.*SIG63\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Real-time event 63.*" \
196 "handle multiple SIGs"
198 # Verify that "handle" can take a numeric argument for the signal
199 # ID, rather than a symbolic name. (This may not be portable;
202 # Also note that this testpoint overrides SIGTRAP, which on HP-UX
203 # at least, is used to implement single-steps and breakpoints.
204 # Don't expect to run the inferior after this!
206 set test "override SIGTRAP"
207 gdb_test_multiple "handle 5 nopass" "$test" {
208 -re "SIGTRAP is used by the debugger.*Are you sure you want to change it.*y or n.*" {
210 "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
215 # GDB doesn't seem to allow numeric signal IDs larger than 15. Verify
216 # that restriction. ??rehrauer: Not sure if this is a feature or a
217 # bug, actually. Why is the range 1-15?
219 gdb_test "handle 58" \
220 "Only signals 1-15 are valid as numeric signals.*Use \"info signals\" for a list of symbolic signals.*" \
221 "invalid signal number rejected"
223 # Verify that we can accept a signal ID range (number-number).
224 # ??rehrauer: This feature isn't documented on the quick-reference
227 gdb_test "handle 13-15" \
228 "SIGPIPE.*SIGALRM.*SIGTERM.*" \
229 "handle multiple SIGs via integer range"
231 # Bizarrely enough, GDB also allows you to reverse the range stat,
232 # stop IDs. E.g., "3-1" and "1-3" mean the same thing. Probably
233 # this isn't documented, but the code anticipates it, so we'd best
236 gdb_test "handle 15-13" \
237 "SIGPIPE.*SIGALRM.*SIGTERM.*" \
238 "handle multiple SIGs via reverse integer range"
240 # SIGINT is used by the debugger as well. Verify that we can
241 # change our minds about changing it.
243 set test "override SIGINT"
244 gdb_test_multiple "handle SIGINT nopass" "$test" {
245 -re "SIGINT is used by the debugger.*Are you sure you want to change it.*y or n.*" {
246 gdb_test_multiple "n" "$test" {
247 -re "Not confirmed, unchanged.*Signal.*$gdb_prompt $" {
248 # "Signal ..." should not be in the output.
249 fail gdb/8812 "$test"
251 -re "Not confirmed, unchanged.*$gdb_prompt $" {
258 # Verify that GDB responds gracefully to the "signal" command with
259 # a missing argument.
262 "Argument required .signal number..*" \
263 "signal without arguments disallowed"
265 # Verify that we can successfully send a signal other than 0 to
266 # the inferior. (This probably causes the inferior to run away.
267 # Be prepared to rerun to main for further testing.)
269 gdb_test "signal SIGUSR1" "Breakpoint.*handler.*"
271 "#0 handler .*#1 .signal handler called.*\#2 .*main.*" \
272 "backtrace for SIGUSR1"