1# Copyright 1997, 1998, 1999, 2003, 2004, 2007, 2008, 2009, 2010, 2011
2# Free Software Foundation, Inc.
3
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 3 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program.  If not, see <http://www.gnu.org/licenses/>.
16
17if [target_info exists gdb,nosignals] {
18    verbose "Skipping signals.exp because of nosignals."
19    continue
20}
21
22if $tracelevel then {
23	strace $tracelevel
24}
25
26
27set testfile signals
28set srcfile ${testfile}.c
29set binfile ${objdir}/${subdir}/${testfile}
30if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
31    untested signals.exp
32    return -1
33}
34
35# Create and source the file that provides information about the compiler
36# used to compile the test case.
37if [get_compiler_info ${binfile}] {
38    return -1;
39}
40
41if {$hp_cc_compiler} {
42    set void 0
43} else {
44    set void void
45}
46
47gdb_exit
48gdb_start
49
50# This will need to be updated as the exact list of signals changes,
51# but I want to test that TARGET_SIGNAL_0, TARGET_SIGNAL_DEFAULT, and
52# TARGET_SIGNAL_UNKNOWN are skipped.
53
54proc test_handle_all_print {} {
55    global timeout
56    # Increase timeout and expect input buffer for large output from gdb.
57    # Allow blank or TAB as whitespace characters.
58    set oldtimeout $timeout
59    set timeout [expr "$timeout + 60"]
60    verbose "Timeout is now $timeout seconds" 2
61    if { ![istarget "*-*-linux*"]
62         && ( [istarget "*-*-gnu*"]
63              || [istarget "*-*-mach*"] ) } {
64	gdb_test_sequence "handle all print" "" \
65	    {
66		"Signal\[ 	\]+Stop\[ 	\]+Print\[ 	\]+Pass to program\[ 	\]+Description\r\nSIGHUP\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Hangup"
67		"SIG63\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Real-time event 63"
68		"EXC_BREAKPOINT\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Breakpoint"
69	    }
70    } else {
71	gdb_test_sequence "handle all print" "" \
72	    {
73		"Signal\[ 	\]+Stop\[ 	\]+Print\[ 	\]+Pass to program\[ 	\]+Description\r\nSIGHUP\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Hangup"
74		"SIG63\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Real-time event 63"
75	    }
76    }
77    set timeout $oldtimeout
78    verbose "Timeout restored to $timeout seconds" 2
79}
80test_handle_all_print
81
82gdb_exit
83gdb_start
84gdb_reinitialize_dir $srcdir/$subdir
85gdb_load $binfile
86
87if [runto_main] then {
88
89    # Since count is a static variable outside main, runto_main is no
90    # guarantee that count will be 0 at this point.
91
92    gdb_test_no_output "set variable count = 0"
93
94    # Test an inferior function call that takes a signal that hits a
95    # breakpoint (with a false condition).  When GDB tries to run the
96    # stack dummy, it will hit the breakpoint at handler.  Provided it
97    # doesn't lose its cool, this is not a problem, it just has to
98    # note that the breakpoint condition is false and keep going.
99
100    # ...setup an always false conditional breakpoint
101
102    gdb_test "break handler if 0" "Breakpoint \[0-9\]+ .*"
103    gdb_test_no_output "set \$handler_breakpoint_number = \$bpnum"
104
105    # ...setup the signal
106
107    gdb_test "next" "signal \\(SIGUSR1.*" "next to signal"
108    gdb_test "next" "alarm \\(.*" "next to alarm #1"
109    gdb_test "next" "\\+\\+count; /\\* first \\*/" \
110	"next to ++count #1"
111    sleep 2
112
113    # ...call the function
114
115    gdb_test "p func1 ()" "^p func1 \\(\\)\r\n.\[0-9\]* = $void" \
116	"p func1 () #1"
117
118    # ...veryfiy that the cout was updated
119
120    gdb_test "p count" "= 2" "p count #1"
121
122    # Now run the same test but with a breakpoint that does stop.
123
124    # ...set up the breakpoint and signal
125
126    gdb_test "condition \$handler_breakpoint_number" "now unconditional\\."
127    gdb_test "next" "alarm \\(.*" "next to alarm #2"
128    gdb_test "next" "\\+\\+count; /\\* second \\*/" \
129	"next to ++count #2"
130    sleep 2
131
132    # ...call the function, which is immediatly interrupted
133
134    gdb_test "p func1 ()" \
135"Breakpoint \[0-9\]*, handler.*
136The program being debugged stopped while in a function called from GDB.*" \
137	"p func1 () #2"
138
139    # ...verify the backtrace
140
141    gdb_test "backtrace" \
142	"#0  handler.*#1  .signal handler called.*#2  func1.*#3  .function called from gdb.*#4.*main.*" \
143	"backtrace from handler when calling func1"
144
145    # ...and continue (silently returning)
146
147    gdb_test "continue" "Continuing\\."
148
149    # ...and then count should have been incremented
150
151    gdb_test "p count" "= 5" "p count #2"
152
153
154    # Verify that "info signals" produces reasonable output.
155
156    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.*" \
157	"info signals"
158
159    # Verify that "info signal" correctly handles an argument, be it a
160    # symbolic signal name, or an integer ID.
161
162    gdb_test "info signal SIGTRAP" \
163	"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
164	"info signal SIGTRAP"
165
166    gdb_test "info signal 5" \
167	"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
168	"info signal 5"
169
170    # Verify that "handle" with illegal arguments is gracefully, um,
171    # handled.
172
173    gdb_test "handle" \
174	"Argument required .signal to handle.*" \
175	"handle without arguments"
176
177    gdb_test "handle SIGFOO" \
178	"Unrecognized or ambiguous flag word: \"SIGFOO\".*" \
179	"handle with bogus SIG"
180
181    gdb_test "handle SIGHUP frump" \
182	"Unrecognized or ambiguous flag word: \"frump\".*" \
183	"handle SIG with bogus action"
184
185    # Verify that "handle" can take multiple actions per SIG, and that
186    # in the case of conflicting actions, that the rightmost action
187    # "wins".
188
189    gdb_test "handle SIGHUP print noprint" \
190	"SIGHUP\[ \t\]*No\[ \t\]*No\[ \t\]*Yes\[ \t\]*Hangup.*" \
191	"handle SIG with multiple conflicting actions"
192
193    # Exercise all the various actions.  (We don't care what the
194    # outcome is, this is just to ensure that they all can be parsed.)
195
196    gdb_test "handle SIGHUP print noprint stop nostop ignore noignore pass nopass" \
197	"Signal.*" \
198	"handle SIG parses all legal actions"
199
200    # Verify that we can "handle" multiple signals at once,
201    # interspersed with actions.
202
203    gdb_test "handle SIG63 print SIGILL" \
204	"SIGILL\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Illegal instruction.*SIG63\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Real-time event 63.*" \
205	"handle multiple SIGs"
206
207    # Verify that "handle" can take a numeric argument for the signal
208    # ID, rather than a symbolic name.  (This may not be portable;
209    # works for HP-UX.)
210
211    # Also note that this testpoint overrides SIGTRAP, which on HP-UX
212    # at least, is used to implement single-steps and breakpoints.
213    # Don't expect to run the inferior after this!
214
215    set test "override SIGTRAP"
216    gdb_test_multiple "handle 5 nopass" "$test" {
217	-re "SIGTRAP is used by the debugger.*Are you sure you want to change it.*y or n.*" {
218	    gdb_test "y" \
219		"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
220		"$test"
221	}
222    }
223
224    # GDB doesn't seem to allow numeric signal IDs larger than 15.  Verify
225    # that restriction.  ??rehrauer: Not sure if this is a feature or a
226    # bug, actually.  Why is the range 1-15?
227
228    gdb_test "handle 58" \
229	"Only signals 1-15 are valid as numeric signals.*Use \"info signals\" for a list of symbolic signals.*" \
230	"invalid signal number rejected"
231
232    # Verify that we can accept a signal ID range (number-number).
233    # ??rehrauer: This feature isn't documented on the quick-reference
234    # card.
235
236    gdb_test "handle 13-15" \
237	"SIGPIPE.*SIGALRM.*SIGTERM.*" \
238	"handle multiple SIGs via integer range"
239
240    # Bizarrely enough, GDB also allows you to reverse the range stat,
241    # stop IDs.  E.g., "3-1" and "1-3" mean the same thing.  Probably
242    # this isn't documented, but the code anticipates it, so we'd best
243    # test it...
244
245    gdb_test "handle 15-13" \
246	"SIGPIPE.*SIGALRM.*SIGTERM.*" \
247	"handle multiple SIGs via reverse integer range"
248
249    # SIGINT is used by the debugger as well.  Verify that we can
250    # change our minds about changing it.
251
252    set test "override SIGINT"
253    gdb_test_multiple "handle SIGINT nopass" "$test" {
254	-re "SIGINT is used by the debugger.*Are you sure you want to change it.*y or n.*" {
255	    gdb_test_multiple "n" "$test" {
256		-re "Not confirmed, unchanged.*Signal.*$gdb_prompt $"  {
257		    # "Signal ..." should not be in the output.
258		    fail gdb/8812 "$test"
259		}
260		-re "Not confirmed, unchanged.*$gdb_prompt $" {
261		    pass "$test"
262		}
263	    }
264	}
265    }
266
267    # Verify that GDB responds gracefully to the "signal" command with
268    # a missing argument.
269
270    gdb_test "signal" \
271	"Argument required .signal number..*" \
272	"signal without arguments disallowed"
273
274    # Verify that we can successfully send a signal other than 0 to
275    # the inferior.  (This probably causes the inferior to run away.
276    # Be prepared to rerun to main for further testing.)
277
278    gdb_test "signal SIGUSR1" "Breakpoint.*handler.*"
279    gdb_test "bt" \
280	"#0  handler .*#1  .signal handler called.*\#2 .*main.*" \
281	"backtrace for SIGUSR1"
282}
283
284return 0
285