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