gdb/testsuite/gdb.python/py-thrhandle.exp

   1 # Copyright (C) 2017-2019 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@gnu.org
  18
  19 # This file verifies that gdb.Inferior.thread_from_thread_handle works
  20 # as expected.
  21
  22 standard_testfile
  23
  24
  25 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
  26     return -1
  27 }
  28
  29 clean_restart ${binfile}
  30
  31 # Skip all tests if Python scripting is not enabled.
  32 if { [skip_python_tests] } { continue }
  33
  34 runto_main
  35
  36 gdb_test "break after_mc_barrier" \
  37     "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
  38          "breakpoint on after_mc_barrier"
  39
  40 gdb_test "break do_something" \
  41     "Breakpoint 3 at .*: file .*${srcfile}, line .*" \
  42          "breakpoint on do_something"
  43
  44 gdb_test "continue" \
  45         "Breakpoint 2, after_mc_barrier .*" \
  46         "run to after_mc_barrier"
  47
  48 gdb_test_no_output "del 2" "delete after_mc_barrier breakpoint"
  49
  50 gdb_test "continue" \
  51         "Breakpoint 3, do_something .*" \
  52         "run to do_something"
  53
  54 # The test case has been constructed so that the current thread,
  55 # indicated by '*' in the "info threads" output, should be stopped in
  56 # do_something() with a value of n which is the same as the number
  57 # reported in the "Id" column.  If it's not, then something went wrong
  58 # with the start up sequence which should cause the main thread to be
  59 # thread 1, the first child thread to be thread 2, and the second
  60 # child thread to be thread 3.
  61 #
  62 # Note that \1 in the RE below is a backreference to the thread id
  63 # reported in the "Id" column.
  64
  65 gdb_test "info threads"  \
  66         {.*[\r\n]+\* +([0-9]+) +Thread[^\r\n]* do_something \(n=\1\) at.*}
  67
  68 # Check for expected results when passing a valid thread handle to
  69 # thread_from_thread_handle().
  70
  71 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \
  72         "1" "print thread id for thrs\[0\]"
  73
  74 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \
  75         "2" "print thread id for thrs\[1\]"
  76
  77 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \
  78         "3" "print thread id for thrs\[2\]"
  79
  80 # Objects which are of the correct size, but which are bogus thread
  81 # handles should return None.  For the first test (using thrs[3]), we
  82 # use 0.  For the second (thrs[4]), we use an unlikely bit pattern.
  83
  84 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[3\]')))" \
  85         "None" "print thread for bogus handle thrs\[3\]"
  86
  87 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[4\]')))" \
  88         "None" "print thread for bogus handle thrs\[4\]"
  89
  90 # We should see an exception when passing an object of the wrong type.
  91
  92 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.lookup_symbol('main')))" \
  93          ".*TypeError: Argument 'handle_obj' must be a thread handle object.*" \
  94          "TypeError when passing a symbol object to thread_from_thread_handle"
  95
  96 # We should see an exception when passing too large of an object.
  97
  98 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs')))" \
  99          ".*Thread handle size mismatch.*" \
 100          "Pass overly large object to thread_from_thread_handle"
 101
 102 # We should see an exception when passing too small of an object.
 103
 104 gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('\"S\"')))" \
 105          ".*Thread handle size mismatch.*" \
 106          "Pass too small of an object to thread_from_thread_handle"