gdb/testsuite/gdb.threads/threadapply.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2004-2023 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]} {
  35     return 0
  36 }
  37
  38 # Break after all threads have been started.
  39 set break_line [gdb_get_line_number "Break here"]
  40 gdb_test "b $break_line" ".*"
  41 gdb_test "continue"
  42
  43 gdb_test_multiple "define backthread" "defining macro" {
  44   -re "Type commands for definition of \"backthread\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  45     gdb_test_multiple "bt\np/x 20\nend" "macro details" {
  46       -re "$gdb_prompt $" {
  47         pass "macro details"
  48       }
  49     }
  50     pass "defining macro"
  51   }
  52 }
  53
  54 # Cause backtraces to fail by setting a limit.  This allows us to
  55 # verify that the macro can get past the backtrace error and perform
  56 # subsequent commands.
  57 gdb_test_no_output "set backtrace limit 3"
  58 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"
  59
  60 # Go into the thread_function to check that a simple "thread apply"
  61 # does not change the selected frame.
  62 gdb_test "step" "thread_function.*" "step to the thread_function"
  63 gdb_test "up" ".*in main.*" "go up in the stack frame"
  64 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"
  65 gdb_test "down" "#0.*thread_function.*" "go down and check selected frame"
  66
  67 # Make sure that GDB doesn't crash when the previously selected thread
  68 # exits due to the command run via thread apply.  Regression test for
  69 # PR threads/13217.
  70
  71 proc thr_apply_detach {thread_set} {
  72     with_test_prefix "thread apply $thread_set" {
  73         global binfile
  74         global break_line
  75
  76         clean_restart ${binfile}
  77
  78         if ![runto_main] {
  79             return -1
  80         }
  81
  82         gdb_breakpoint "$break_line"
  83         gdb_continue_to_breakpoint "all threads started"
  84
  85         gdb_test "thread apply $thread_set detach" "Thread .*"
  86         gdb_test "thread" "No thread selected" "switched to no thread selected"
  87     }
  88 }
  89
  90 # Test both "all" and a thread list, because those are implemented as
  91 # different commands in GDB.
  92 foreach thread_set {"all" "1.1 1.2 1.3"} {
  93     thr_apply_detach $thread_set
  94 }
  95
  96 # Test killing and removing inferiors from a command run via "thread
  97 # apply THREAD_SET".  THREAD_SET can be either "1.1", or "all".  GDB
  98 # used to mistakenly allow deleting the previously-selected inferior,
  99 # in some cases, leading to crashes.
 100
 101 proc kill_and_remove_inferior {thread_set} {
 102     global binfile
 103     global gdb_prompt
 104
 105     # The test starts multiple inferiors, therefore non-extended
 106     # remote is not supported.
 107     if [use_gdb_stub] {
 108         unsupported "using gdb stub"
 109         return
 110     }
 111
 112     set any "\[^\r\n\]*"
 113     set ws "\[ \t\]\+"
 114
 115     clean_restart ${binfile}
 116
 117     with_test_prefix "start inferior 1" {
 118         runto_main
 119     }
 120
 121     # Add and start inferior number NUM.
 122     proc add_and_start_inferior {num} {
 123         global binfile
 124
 125         # Start another inferior.
 126         gdb_test "add-inferior" "Added inferior $num.*" \
 127             "add empty inferior $num"
 128         gdb_test "inferior $num" "Switching to inferior $num.*" \
 129             "switch to inferior $num"
 130         gdb_test "file ${binfile}" ".*" "load file in inferior $num"
 131
 132         with_test_prefix "start inferior $num" {
 133             runto_main
 134         }
 135     }
 136
 137     # Start another inferior.
 138     add_and_start_inferior 2
 139
 140     # And yet another.
 141     add_and_start_inferior 3
 142
 143     gdb_test "thread 2.1" "Switching to thread 2.1 .*"
 144
 145     # Try removing an active inferior via a "thread apply" command.
 146     # Should fail/warn.
 147     with_test_prefix "try remove" {
 148
 149         gdb_define_cmd "remove" {
 150             "remove-inferiors 3"
 151         }
 152
 153         # Inferior 3 is still alive, so can't remove it.
 154         gdb_test "thread apply $thread_set remove" \
 155             "warning: Can not remove active inferior 3.*"
 156         # Check that GDB restored the selected thread.
 157         gdb_test "thread" "Current thread is 2.1 .*"
 158
 159         gdb_test "info inferiors" \
 160             [multi_line \
 161                  "${ws}1${ws}process ${any}" \
 162                  "\\\* 2${ws}process ${any}" \
 163                  "${ws}3${ws}process ${any}" \
 164                 ]
 165     }
 166
 167     # Kill and try to remove inferior 2 while inferior 2 is selected.
 168     # Removing the inferior should fail/warn.
 169     with_test_prefix "try kill-and-remove" {
 170
 171         # The "inferior 1" command works around PR gdb/19318 ("kill
 172         # inferior N" shouldn't switch to inferior N).
 173         gdb_define_cmd "kill-and-remove" {
 174             "kill inferiors 2"
 175             "inferior 1"
 176             "remove-inferiors 2"
 177         }
 178
 179         # Note that when threads=1.1, this makes sure we're really
 180         # testing failure to remove the inferior the user had selected
 181         # before the "thread apply" command, instead of testing
 182         # refusal to remove the currently-iterated inferior.
 183         gdb_test "thread apply $thread_set kill-and-remove" \
 184             "warning: Can not remove current inferior 2.*"
 185         gdb_test "thread" "No thread selected" \
 186             "switched to no thread selected"
 187
 188         gdb_test "info inferiors" \
 189             [multi_line \
 190                  "${ws}1${ws}process ${any}" \
 191                  "\\\* 2${ws}<null>${any}" \
 192                  "${ws}3${ws}process ${any}" \
 193                 ]
 194     }
 195
 196     # Try removing (the now dead) inferior 2 while inferior 1 is
 197     # selected.  This should succeed.
 198     with_test_prefix "try remove 2" {
 199
 200         gdb_test "thread 1.1" "Switching to thread 1.1 .*"
 201
 202         gdb_define_cmd "remove-again" {
 203             "remove-inferiors 2"
 204         }
 205
 206         set test "thread apply $thread_set remove-again"
 207         gdb_test_multiple $test $test {
 208             -re "warning: Can not remove.*$gdb_prompt $" {
 209                 fail $test
 210             }
 211             -re "$gdb_prompt $" {
 212                 pass $test
 213             }
 214         }
 215         gdb_test "thread" "Current thread is 1.1 .*"
 216         # Check that only inferiors 1 and 3 are around.
 217         gdb_test "info inferiors" \
 218             [multi_line \
 219                  "\\\* 1${ws}process ${any}" \
 220                  "${ws}3${ws}process ${any}" \
 221                 ]
 222     }
 223 }
 224
 225 # Test both "all" and a thread list, because those are implemented as
 226 # different commands in GDB.
 227 foreach_with_prefix thread_set {"all" "1.1"} {
 228     kill_and_remove_inferior $thread_set
 229 }