gdb/testsuite/gdb.threads/threadapply.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2004-2020 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19 # This test verifies that a macro using backtrace can be applied to all threads
  20 # and will continue for each thread even though an error may occur in
  21 # backtracing one of the threads.
  22
  23 standard_testfile
  24 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
  25     return -1
  26 }
  27
  28 clean_restart ${binfile}
  29
  30 #
  31 # Run to `main' where we begin our tests.
  32 #
  33
  34 if ![runto_main] then {
  35     fail "can't run to main"
  36     return 0
  37 }
  38
  39 # Break after all threads have been started.
  40 set break_line [gdb_get_line_number "Break here"]
  41 gdb_test "b $break_line" ".*"
  42 gdb_test "continue"
  43
  44 gdb_test_multiple "define backthread" "defining macro" {
  45   -re "Type commands for definition of \"backthread\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  46     gdb_test_multiple "bt\np/x 20\nend" "macro details" {
  47       -re "$gdb_prompt $" {
  48         pass "macro details"
  49       }
  50     }
  51     pass "defining macro"
  52   }
  53 }
  54
  55 # Cause backtraces to fail by setting a limit.  This allows us to
  56 # verify that the macro can get past the backtrace error and perform
  57 # subsequent commands.
  58 gdb_test_no_output "set backtrace limit 3"
  59 gdb_test "thread apply all backthread" "Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14"
  60
  61 # Go into the thread_function to check that a simple "thread apply"
  62 # does not change the selected frame.
  63 gdb_test "step" "thread_function.*" "step to the thread_function"
  64 gdb_test "up" ".*in main.*" "go up in the stack frame"
  65 gdb_test "thread apply all print 1"  "Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1" "run a simple print command on all threads"
  66 gdb_test "down" "#0.*thread_function.*" "go down and check selected frame"
  67
  68 # Make sure that GDB doesn't crash when the previously selected thread
  69 # exits due to the command run via thread apply.  Regression test for
  70 # PR threads/13217.
  71
  72 proc thr_apply_detach {thread_set} {
  73     with_test_prefix "thread apply $thread_set" {
  74         global binfile
  75         global break_line
  76
  77         clean_restart ${binfile}
  78
  79         if ![runto_main] {
  80             fail "can't run to main"
  81             return -1
  82         }
  83
  84         gdb_breakpoint "$break_line"
  85         gdb_continue_to_breakpoint "all threads started"
  86
  87         gdb_test "thread apply $thread_set detach" "Thread .*"
  88         gdb_test "thread" "No thread selected" "switched to no thread selected"
  89     }
  90 }
  91
  92 # Test both "all" and a thread list, because those are implemented as
  93 # different commands in GDB.
  94 foreach thread_set {"all" "1.1 1.2 1.3"} {
  95     thr_apply_detach $thread_set
  96 }
  97
  98 # Test killing and removing inferiors from a command run via "thread
  99 # apply THREAD_SET".  THREAD_SET can be either "1.1", or "all".  GDB
 100 # used to mistakenly allow deleting the previously-selected inferior,
 101 # in some cases, leading to crashes.
 102
 103 proc kill_and_remove_inferior {thread_set} {
 104     global binfile
 105     global gdb_prompt
 106
 107     # The test starts multiple inferiors, therefore non-extended
 108     # remote is not supported.
 109     if [use_gdb_stub] {
 110         unsupported "using gdb stub"
 111         return
 112     }
 113
 114     set any "\[^\r\n\]*"
 115     set ws "\[ \t\]\+"
 116
 117     clean_restart ${binfile}
 118
 119     with_test_prefix "start inferior 1" {
 120         runto_main
 121     }
 122
 123     # Add and start inferior number NUM.
 124     proc add_and_start_inferior {num} {
 125         global binfile
 126
 127         # Start another inferior.
 128         gdb_test "add-inferior" "Added inferior $num.*" \
 129             "add empty inferior $num"
 130         gdb_test "inferior $num" "Switching to inferior $num.*" \
 131             "switch to inferior $num"
 132         gdb_test "file ${binfile}" ".*" "load file in inferior $num"
 133
 134         with_test_prefix "start inferior $num" {
 135             runto_main
 136         }
 137     }
 138
 139     # Start another inferior.
 140     add_and_start_inferior 2
 141
 142     # And yet another.
 143     add_and_start_inferior 3
 144
 145     gdb_test "thread 2.1" "Switching to thread 2.1 .*"
 146
 147     # Try removing an active inferior via a "thread apply" command.
 148     # Should fail/warn.
 149     with_test_prefix "try remove" {
 150
 151         gdb_define_cmd "remove" {
 152             "remove-inferiors 3"
 153         }
 154
 155         # Inferior 3 is still alive, so can't remove it.
 156         gdb_test "thread apply $thread_set remove" \
 157             "warning: Can not remove active inferior 3.*"
 158         # Check that GDB restored the selected thread.
 159         gdb_test "thread" "Current thread is 2.1 .*"
 160
 161         gdb_test "info inferiors" \
 162             [multi_line \
 163                  "${ws}1${ws}process ${any}" \
 164                  "\\\* 2${ws}process ${any}" \
 165                  "${ws}3${ws}process ${any}" \
 166                 ]
 167     }
 168
 169     # Kill and try to remove inferior 2 while inferior 2 is selected.
 170     # Removing the inferior should fail/warn.
 171     with_test_prefix "try kill-and-remove" {
 172
 173         # The "inferior 1" command works around PR gdb/19318 ("kill
 174         # inferior N" shouldn't switch to inferior N).
 175         gdb_define_cmd "kill-and-remove" {
 176             "kill inferiors 2"
 177             "inferior 1"
 178             "remove-inferiors 2"
 179         }
 180
 181         # Note that when threads=1.1, this makes sure we're really
 182         # testing failure to remove the inferior the user had selected
 183         # before the "thread apply" command, instead of testing
 184         # refusal to remove the currently-iterated inferior.
 185         gdb_test "thread apply $thread_set kill-and-remove" \
 186             "warning: Can not remove current inferior 2.*"
 187         gdb_test "thread" "No thread selected" \
 188             "switched to no thread selected"
 189
 190         gdb_test "info inferiors" \
 191             [multi_line \
 192                  "${ws}1${ws}process ${any}" \
 193                  "\\\* 2${ws}<null>${any}" \
 194                  "${ws}3${ws}process ${any}" \
 195                 ]
 196     }
 197
 198     # Try removing (the now dead) inferior 2 while inferior 1 is
 199     # selected.  This should succeed.
 200     with_test_prefix "try remove 2" {
 201
 202         gdb_test "thread 1.1" "Switching to thread 1.1 .*"
 203
 204         gdb_define_cmd "remove-again" {
 205             "remove-inferiors 2"
 206         }
 207
 208         set test "thread apply $thread_set remove-again"
 209         gdb_test_multiple $test $test {
 210             -re "warning: Can not remove.*$gdb_prompt $" {
 211                 fail $test
 212             }
 213             -re "$gdb_prompt $" {
 214                 pass $test
 215             }
 216         }
 217         gdb_test "thread" "Current thread is 1.1 .*"
 218         # Check that only inferiors 1 and 3 are around.
 219         gdb_test "info inferiors" \
 220             [multi_line \
 221                  "\\\* 1${ws}process ${any}" \
 222                  "${ws}3${ws}process ${any}" \
 223                 ]
 224     }
 225 }
 226
 227 # Test both "all" and a thread list, because those are implemented as
 228 # different commands in GDB.
 229 foreach_with_prefix thread_set {"all" "1.1"} {
 230     kill_and_remove_inferior $thread_set
 231 }