1# Copyright 1997, 1998, 1999, 2003, 2004 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 2 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, write to the Free Software
15# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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
26set prms_id 0
27set bug_id 0
28
29set testfile signals
30set srcfile ${testfile}.c
31set binfile ${objdir}/${subdir}/${testfile}
32if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
33    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
34}
35
36# Create and source the file that provides information about the compiler
37# used to compile the test case.
38if [get_compiler_info ${binfile}] {
39    return -1;
40}
41
42if {$hp_cc_compiler} {
43    set void 0
44} else {
45    set void void
46}
47
48gdb_exit
49gdb_start
50
51# This will need to be updated as the exact list of signals changes,
52# but I want to test that TARGET_SIGNAL_0, TARGET_SIGNAL_DEFAULT, and
53# TARGET_SIGNAL_UNKNOWN are skipped.
54
55proc test_handle_all_print {} {
56    global timeout
57    # Increase timeout and expect input buffer for large output from gdb.
58    # Allow blank or TAB as whitespace characters.
59    set oldtimeout $timeout
60    set timeout [expr "$timeout + 360"]
61    verbose "Timeout is now $timeout seconds" 2
62    if { ![istarget "*-*-linux*"]
63         && ( [istarget "*-*-gnu*"]
64              || [istarget "*-*-mach*"] ) } {
65	gdb_test "handle all print" "Signal\[ 	\]+Stop\[ 	\]+Print\[ 	\]+Pass to program\[ 	\]+Description\r\nSIGHUP\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Hangup.*SIG63\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Real-time event 63.*EXC_BREAKPOINT\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Breakpoint"
66    } else {
67	gdb_test "handle all print" "Signal\[ 	\]+Stop\[ 	\]+Print\[ 	\]+Pass to program\[ 	\]+Description\r\nSIGHUP\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Hangup.*SIG63\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Yes\[ 	\]+Real-time event 63.*"
68    }
69    set timeout $oldtimeout
70    verbose "Timeout restored to $timeout seconds" 2
71}
72test_handle_all_print
73
74gdb_exit
75gdb_start
76gdb_reinitialize_dir $srcdir/$subdir
77gdb_load $binfile
78
79if [runto_main] then {
80
81    # Since count is a static variable outside main, runto_main is no
82    # guarantee that count will be 0 at this point.
83
84    gdb_test "set variable count = 0" ""
85
86    # Test an inferior function call that takes a signal that hits a
87    # breakpoint (with a false condition).  When GDB tries to run the
88    # stack dummy, it will hit the breakpoint at handler.  Provided it
89    # doesn't lose its cool, this is not a problem, it just has to
90    # note that the breakpoint condition is false and keep going.
91
92    # ...setup an always false conditional breakpoint
93
94    gdb_test "break handler if 0" "Breakpoint \[0-9\]+ .*"
95    gdb_test "set \$handler_breakpoint_number = \$bpnum" ""
96
97    # ...setup the signal
98
99    gdb_test "next" "signal \\(SIGUSR1.*" "next to signal"
100    gdb_test "next" "alarm \\(.*" "next to alarm #1"
101    gdb_test "next" "\\+\\+count; /\\* first \\*/" \
102	"next to ++count #1"
103    sleep 2
104
105    # ...call the function
106
107    gdb_test "p func1 ()" "^p func1 \\(\\)\r\n.\[0-9\]* = $void" \
108	"p func1 () #1"
109
110    # ...veryfiy that the cout was updated
111
112    gdb_test "p count" "= 2" "p count #1"
113
114    # Now run the same test but with a breakpoint that does stop.
115
116    # ...set up the breakpoint and signal
117
118    gdb_test "condition \$handler_breakpoint_number" "now unconditional\\."
119    gdb_test "next" "alarm \\(.*" "next to alarm #2"
120    gdb_test "next" "\\+\\+count; /\\* second \\*/" \
121	"next to ++count #2"
122    sleep 2
123
124    # ...call the function, which is immediatly interrupted
125
126    gdb_test "p func1 ()" \
127"Breakpoint \[0-9\]*, handler.*
128The program being debugged stopped while in a function called from GDB.*" \
129	"p func1 () #2"
130
131    # ...verify the backtrace
132
133    gdb_test "backtrace" \
134	"#0  handler.*#1  .signal handler called.*#2  func1.*#3  .function called from gdb.*#4.*main.*" \
135	"backtrace from handler when calling func1"
136
137    # ...and continue (silently returning)
138
139    gdb_test "continue" "Continuing\\."
140
141    # ...and then count should have been incremented
142
143    gdb_test "p count" "= 5" "p count #2"
144
145
146    # Verify that "info signals" produces reasonable output.
147
148    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.*" \
149	"info signals"
150
151    # Verify that "info signal" correctly handles an argument, be it a
152    # symbolic signal name, or an integer ID.
153
154    gdb_test "info signal SIGTRAP" \
155	"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
156	"info signal SIGTRAP"
157
158    gdb_test "info signal 5" \
159	"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
160	"info signal 5"
161
162    # Verify that "handle" with illegal arguments is gracefully, um,
163    # handled.
164
165    gdb_test "handle" \
166	"Argument required .signal to handle.*" \
167	"handle without arguments"
168
169    gdb_test "handle SIGFOO" \
170	"Unrecognized or ambiguous flag word: \"SIGFOO\".*" \
171	"handle with bogus SIG"
172
173    gdb_test "handle SIGHUP frump" \
174	"Unrecognized or ambiguous flag word: \"frump\".*" \
175	"handle SIG with bogus action"
176
177    # Verify that "handle" can take multiple actions per SIG, and that
178    # in the case of conflicting actions, that the rightmost action
179    # "wins".
180
181    gdb_test "handle SIGHUP print noprint" \
182	"SIGHUP\[ \t\]*No\[ \t\]*No\[ \t\]*Yes\[ \t\]*Hangup.*" \
183	"handle SIG with multiple conflicting actions"
184
185    # Exercise all the various actions.  (We don't care what the
186    # outcome is, this is just to ensure that they all can be parsed.)
187
188    gdb_test "handle SIGHUP print noprint stop nostop ignore noignore pass nopass" \
189	"Signal.*" \
190	"handle SIG parses all legal actions"
191
192    # Verify that we can "handle" multiple signals at once,
193    # interspersed with actions.
194
195    gdb_test "handle SIG63 print SIGILL" \
196	"SIGILL\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Illegal instruction.*SIG63\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Real-time event 63.*" \
197	"handle multiple SIGs"
198
199    # Verify that "handle" can take a numeric argument for the signal
200    # ID, rather than a symbolic name.  (This may not be portable;
201    # works for HP-UX.)
202
203    # Also note that this testpoint overrides SIGTRAP, which on HP-UX
204    # at least, is used to implement single-steps and breakpoints.
205    # Don't expect to run the inferior after this!
206
207    set test "override SIGTRAP"
208    gdb_test_multiple "handle 5 nopass" "$test" {
209	-re "SIGTRAP is used by the debugger.*Are you sure you want to change it.*y or n.*" {
210	    gdb_test "y" \
211		"SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \
212		"$test"
213	}
214    }
215
216    # GDB doesn't seem to allow numeric signal IDs larger than 15.  Verify
217    # that restriction.  ??rehrauer: Not sure if this is a feature or a
218    # bug, actually.  Why is the range 1-15?
219
220    gdb_test "handle 58" \
221	"Only signals 1-15 are valid as numeric signals.*Use \"info signals\" for a list of symbolic signals.*" \
222	"invalid signal number rejected"
223
224    # Verify that we can accept a signal ID range (number-number).
225    # ??rehrauer: This feature isn't documented on the quick-reference
226    # card.
227
228    gdb_test "handle 13-15" \
229	"SIGPIPE.*SIGALRM.*SIGTERM.*" \
230	"handle multiple SIGs via integer range"
231
232    # Bizarrely enough, GDB also allows you to reverse the range stat,
233    # stop IDs.  E.g., "3-1" and "1-3" mean the same thing.  Probably
234    # this isn't documented, but the code anticipates it, so we'd best
235    # test it...
236
237    gdb_test "handle 15-13" \
238	"SIGPIPE.*SIGALRM.*SIGTERM.*" \
239	"handle multiple SIGs via reverse integer range"
240
241    # SIGINT is used by the debugger as well.  Verify that we can
242    # change our minds about changing it.
243
244    set test "override SIGINT"
245    gdb_test_multiple "handle SIGINT nopass" "$test" {
246	-re "SIGINT is used by the debugger.*Are you sure you want to change it.*y or n.*" {
247	    gdb_test_multiple "n" "$test" {
248		-re "Not confirmed, unchanged.*Signal.*$gdb_prompt $"  {
249		    # "Signal ..." should not be in the output.
250		    kfail gdb/1707 "$test"
251		}
252		-re "Not confirmed, unchanged.*$gdb_prompt $" {
253		    pass "$test"
254		}
255	    }
256	}
257    }
258
259    # Verify that GDB responds gracefully to the "signal" command with
260    # a missing argument.
261
262    gdb_test "signal" \
263	"Argument required .signal number..*" \
264	"signal without arguments disallowed"
265
266    # Verify that we can successfully send a signal other than 0 to
267    # the inferior.  (This probably causes the inferior to run away.
268    # Be prepared to rerun to main for further testing.)
269
270    gdb_test "signal SIGUSR1" "Breakpoint.*handler.*"
271    gdb_test "bt" \
272	"#0  handler .*#1  .signal handler called.*\#2 .*main.*" \
273	"backtrace for SIGUSR1"
274}
275
276return 0
277