gdb/testsuite/gdb.threads/attachstop-mt.exp

   1 # Copyright 2008
   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
  17 # This test is based on gdb.base/attach.exp with modifications by Jeff Johnston
  18 # <jjohnstn@redhat.com> and Jan Kratochvil <jan.kratochvil@redhat.com>.
  19
  20 # This test only works on Linux
  21 if { ![isnative] || [is_remote host] || ![istarget *-linux*] } {
  22     continue
  23 }
  24
  25 set testfile "attachstop-mt"
  26 set srcfile  ${testfile}.c
  27 set binfile  ${objdir}/${subdir}/${testfile}
  28 set escapedbinfile  [string_to_regexp ${objdir}/${subdir}/${testfile}]
  29
  30 #execute_anywhere "rm -f ${binfile}"
  31 remote_exec build "rm -f ${binfile}"
  32 # For debugging this test
  33 #
  34 #log_user 1
  35
  36 # build the test case
  37 #
  38 if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  39     untested attachstop-mt.exp
  40     return -1
  41 }
  42
  43 if [get_compiler_info ${binfile}] {
  44     return -1
  45 }
  46
  47 # Start the program running and then wait for a bit, to be sure
  48 # that it can be attached to.
  49
  50 set testpid [eval exec $binfile &]
  51
  52 # No race
  53 sleep 2
  54
  55 # The testcase has three threads, find some other thread TID for $testpid2.
  56 set tids [exec sh -c "echo /proc/$testpid/task/*"]
  57 regsub -all /proc/$testpid/task/ $tids {} tids
  58 if {$tids == "*"} {
  59     unresolved "/proc/PID/task is not supported (kernel-2.4?)"
  60     remote_exec build "kill -9 ${testpid}"
  61     return -1
  62 }
  63 set tids [lsort -integer [split $tids]]
  64 if {[llength $tids] != 3 || [lindex $tids 0] != $testpid} {
  65     verbose -log "Invalid TIDs <$tids> for PID $testpid"
  66     fail "Invalid TIDs found"
  67     remote_exec build "kill -9 ${testpid}"
  68     return -1
  69 }
  70 set testpid2 [lindex $tids 2]
  71
  72 # Initial sanity test it is normally sleeping
  73 set status2 /proc/${testpid}/task/${testpid2}/status
  74 set fileid0 [open $status2 r];
  75 gets $fileid0 line1;
  76 gets $fileid0 line2;
  77 close $fileid0;
  78
  79 set test "attach0, initial sanity check of the sleeping state"
  80 if {[string match "*(sleeping)*" $line2]} {
  81   pass $test
  82 } else {
  83   fail $test
  84 }
  85
  86 # Sttach and detach to test it will not become stopped
  87 gdb_start
  88 gdb_reinitialize_dir $srcdir/$subdir
  89 gdb_load ${binfile}
  90
  91 set test "attach0 to sleeping"
  92 gdb_test_multiple "attach $testpid" "$test" {
  93     -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
  94         pass "$test"
  95     }
  96 }
  97
  98 gdb_test "gcore /dev/null" ".*aved corefile.*" "attach0 to sleeping gcore invocation"
  99
 100 gdb_test "thread 2" ".*witching to thread 2 .*" "attach0 to sleeping switch thread"
 101
 102 gdb_test "bt" ".*sleep.*func.*" "attach0 to sleeping bt"
 103
 104 # Exit and detach the process.
 105
 106 gdb_exit
 107
 108 # No race
 109 sleep 2
 110
 111 # Check it did not get stopped by our gdb
 112 set fileid1 [open $status2 r];
 113 gets $fileid1 line1;
 114 gets $fileid1 line2;
 115 close $fileid1;
 116
 117 set test "attach1, post-gdb sanity check of the sleeping state - Red Hat BZ 197584"
 118 if {[string match "*(sleeping)*" $line2]} {
 119   pass $test
 120 } else {
 121   fail $test
 122 }
 123
 124 # Stop the program
 125 remote_exec build "kill -s STOP ${testpid}"
 126
 127 # No race
 128 sleep 2
 129
 130 # Check it really got stopped by kill(1)
 131 set fileid2 [open $status2 r];
 132 gets $fileid2 line1;
 133 gets $fileid2 line2;
 134 close $fileid2;
 135
 136 set test "attach2, initial sanity check of the stopped state"
 137 if {[string match "*(stopped)*" $line2]} {
 138   pass $test
 139 } else {
 140   fail $test
 141 }
 142
 143 # Start with clean gdb
 144 gdb_start
 145 gdb_reinitialize_dir $srcdir/$subdir
 146 gdb_load ${binfile}
 147
 148 # Verify that we can attach to the process by first giving its
 149 # executable name via the file command, and using attach with the
 150 # process ID.
 151
 152 set test "set file, before attach3 to stopped process"
 153 gdb_test_multiple "file $binfile" "$test" {
 154    -re "Load new symbol table from.*y or n. $" {
 155         gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \
 156                 "$test (re-read)"
 157     }
 158     -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {
 159         pass "$test"
 160     }
 161 }
 162
 163 set test "attach3 to stopped, after setting file"
 164 gdb_test_multiple "attach $testpid" "$test" {
 165     -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
 166         pass "$test"
 167     }
 168 }
 169
 170 # We may be already after the threads phase.
 171 # `thread 2' command is important for the test to switch the current thread to
 172 # a non-primary one for the detach process.
 173
 174 gdb_test "thread 2" ".*(witching to thread 2 |hread ID 2 not known).*" "attach3 to stopped switch thread"
 175 gdb_test "bt" ".*sleep.*(func|main).*" "attach3 to stopped bt"
 176
 177 # Exit and detach the process.
 178 gdb_exit
 179
 180 # Stop the program
 181 remote_exec build "kill -s STOP ${testpid}"
 182
 183 # No race
 184 sleep 2
 185
 186 # Continue the test as we would hit another expected bug regarding
 187 #       Program received signal SIGSTOP, Stopped (signal).
 188 # across NPTL threads.
 189
 190 gdb_start
 191 gdb_reinitialize_dir $srcdir/$subdir
 192 gdb_load ${binfile}
 193
 194 # Verify that we can attach to the process just by giving the
 195 # process ID.
 196
 197 set test "attach4 to stopped, after setting file"
 198 gdb_test_multiple "attach $testpid" "$test" {
 199     -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
 200         pass "$test"
 201     }
 202 }
 203
 204 # We may be already after the threads phase.
 205 # `thread 2' command is important for the test to switch the current thread to
 206 # a non-primary one for the detach process.
 207
 208 gdb_test "thread 2" ".*(witching to thread 2 |hread ID 2 not known).*" "attach4 to stopped switch thread"
 209 gdb_test "bt" ".*sleep.*(func|main).*" "attach4 to stopped bt"
 210
 211 # RHEL3U8 kernel-2.4.21-47.EL will not return SIGINT but only shorten the sleep.
 212 gdb_breakpoint [gdb_get_line_number "Ridiculous time"]
 213 gdb_breakpoint [gdb_get_line_number "cut the sleep time"]
 214 set test "attach4 continue"
 215 send_gdb "continue\n"
 216 gdb_expect {
 217   -re "Continuing"
 218     { pass "continue ($test)" }
 219   timeout
 220     { fail "continue ($test) (timeout)" }
 221 }
 222
 223 # For this to work we must be sure to consume the "Continuing."
 224 # message first, or GDB's signal handler may not be in place.
 225 after 1000 {send_gdb "\003"}
 226 set test "attach4 stop by interrupt"
 227 gdb_expect {
 228   -re "Program received signal SIGINT.*$gdb_prompt $"
 229     {
 230       pass $test
 231     }
 232   -re "Breakpoint \[0-9\].*$srcfile.*$gdb_prompt $"
 233     {
 234       pass $test
 235     }
 236   timeout
 237     {
 238       fail "$test (timeout)"
 239     }
 240 }
 241
 242 gdb_exit
 243
 244 # No race
 245 sleep 2
 246
 247 # At this point, the process should be sleeping
 248
 249 set fileid4 [open $status2 r];
 250 gets $fileid4 line1;
 251 gets $fileid4 line2;
 252 close $fileid4;
 253
 254 set test "attach4, exit leaves process sleeping"
 255 if {[string match "*(sleeping)*" $line2]} {
 256   pass $test
 257 } else {
 258   fail $test
 259 }
 260
 261 # Make sure we don't leave a process around to confuse
 262 # the next test run (and prevent the compile by keeping
 263 # the text file busy), in case the "set should_exit" didn't
 264 # work.
 265
 266 remote_exec build "kill -9 ${testpid}"
 267
 268 return 0