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

   1 # Copyright (C) 2009-2023 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 # This file is part of the GDB testsuite.  It tests the mechanism
  17 # exposing values to Python.
  18
  19 load_lib gdb-python.exp
  20
  21 standard_testfile
  22
  23 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
  24     return -1
  25 }
  26
  27 # Skip all tests if Python scripting is not enabled.
  28 if { [skip_python_tests] } { continue }
  29
  30 # The following tests require execution.
  31
  32 if {![runto_main]} {
  33     return 0
  34 }
  35
  36 gdb_breakpoint [gdb_get_line_number "Block break here."]
  37 gdb_continue_to_breakpoint "Block break here."
  38 gdb_py_test_silent_cmd "python bf1 = gdb.selected_frame ()" "get frame" 0
  39
  40 # Test Frame.architecture() method.
  41 gdb_py_test_silent_cmd "python show_arch_str = gdb.execute(\"show architecture\", to_string=True)" "show arch" 0
  42 gdb_test "python print (bf1.architecture().name() in show_arch_str)" "True" "test Frame.architecture()"
  43
  44 # First test that read_var is unaffected by PR 11036 changes.
  45 gdb_test "python print (bf1.read_var(\"i\"))" "\"stuff\"" "test i"
  46 gdb_test "python print (bf1.read_var(\"f\"))" "\"foo\"" "test f"
  47 gdb_test "python print (bf1.read_var(\"b\"))" "\"bar\"" "test b"
  48
  49 # Test the read_var function in another block other than the current
  50 # block (in this case, the super block). Test thar read_var is reading
  51 # the correct variables of i and f but they are the correct value and type.
  52 gdb_py_test_silent_cmd "python sb = bf1.block().superblock" "get superblock" 0
  53 gdb_test "python print (bf1.read_var(\"i\", sb))" "1.1.*" "test i = 1.1"
  54 gdb_test "python print (bf1.read_var(\"i\", sb).type)" "double" "test double i"
  55 gdb_test "python print (bf1.read_var(\"f\", sb))" "2.2.*" "test f = 2.2"
  56 gdb_test "python print (bf1.read_var(\"f\", sb).type)" "double" "test double f"
  57
  58 # And again test another outerblock, this time testing "i" is the
  59 # correct value and type.
  60 gdb_py_test_silent_cmd "python sb = sb.superblock" "get superblock" 0
  61 gdb_test "python print (bf1.read_var(\"i\", sb))" "99" "test i = 99"
  62 gdb_test "python print (bf1.read_var(\"i\", sb).type)" "int" "test int i"
  63
  64 gdb_breakpoint "f2"
  65 gdb_continue_to_breakpoint "breakpoint at f2"
  66 gdb_py_test_silent_cmd "python bframe = gdb.selected_frame()" \
  67     "get bottommost frame" 0
  68 gdb_test "up" ".*" ""
  69
  70 gdb_py_test_silent_cmd "python f1 = gdb.selected_frame ()" "get second frame" 0
  71 gdb_py_test_silent_cmd "python f0 = f1.newer ()" "get first frame" 0
  72 gdb_py_test_silent_cmd "python f2 = f1.older ()" "get last frame" 0
  73
  74 # Check the Frame.level method.
  75 gdb_test "python print ('bframe.level = %d' % bframe.level ())" \
  76     "bframe\\.level = 0"
  77 gdb_test "python print ('f0.level = %d' % f0.level ())" \
  78     "f0\\.level = 0"
  79 gdb_test "python print ('f1.level = %d' % f1.level ())" \
  80     "f1\\.level = 1"
  81 gdb_test "python print ('f2.level = %d' % f2.level ())" \
  82     "f2\\.level = 2"
  83
  84 gdb_test "python print (f1 == gdb.newest_frame())" False \
  85     "selected frame -vs- newest frame"
  86 gdb_test "python print (bframe == gdb.newest_frame())" True \
  87     "newest frame -vs- newest frame"
  88
  89 gdb_test "python print ('result = %s' % (f0 == f1))" " = False" "test equality comparison (false)"
  90 gdb_test "python print ('result = %s' % (f0 == f0))" " = True" "test equality comparison (true)"
  91 gdb_test "python print ('result = %s' % (f0 != f1))" " = True" "test inequality comparison (true)"
  92 gdb_test "python print ('result = %s' % (f0 != f0))" " = False" "test inequality comparison (false)"
  93 gdb_test "python print ('result = %s' % f0.is_valid ())" " = True" "test Frame.is_valid"
  94 gdb_test "python print ('result = %s' % f0.name ())" " = f2" "test Frame.name"
  95 gdb_test "python print ('result = %s' % (f0.type () == gdb.NORMAL_FRAME))" " = True" "test Frame.type"
  96 gdb_test "python print ('result = %s' % (f0.unwind_stop_reason () == gdb.FRAME_UNWIND_NO_REASON))" \
  97     " = True" "test Frame.unwind_stop_reason"
  98 gdb_test "python print ('result = %s' % gdb.frame_stop_reason_string (gdb.FRAME_UNWIND_INNER_ID))" " = previous frame inner to this frame \\(corrupt stack\\?\\)" "test gdb.frame_stop_reason_string"
  99 gdb_test "python print ('result = %s' % f0.pc ())" " = \[0-9\]+" "test Frame.pc"
 100 gdb_test "python print ('result = %s' % (f0.older () == f1))" " = True" "test Frame.older"
 101 gdb_test "python print ('result = %s' % (f1.newer () == f0))" " = True" "test Frame.newer"
 102 gdb_test "python print ('result = %s' % f0.read_var ('variable_which_surely_doesnt_exist'))" \
 103   "ValueError: Variable 'variable_which_surely_doesnt_exist' not found.*Error while executing Python code." \
 104   "test Frame.read_var - error"
 105 gdb_test "python print ('result = %s' % f0.read_var ('a'))" " = 1" "test Frame.read_var - success"
 106
 107 gdb_test "python print ('result = %s' % (gdb.selected_frame () == f1))" " = True" "test gdb.selected_frame"
 108
 109 # Can read SP register.
 110 gdb_test "python print ('result = %s' % (gdb.selected_frame ().read_register ('sp') == gdb.parse_and_eval ('\$sp')))" \
 111   " = True" \
 112   "test Frame.read_register(sp)"
 113
 114 # PC value obtained via read_register is as expected.
 115 gdb_test "python print ('result = %s' % (f0.read_register('pc') == f0.pc()))" \
 116   " = True" \
 117   "test Frame.read_register(pc)"
 118
 119 # Test arch-specific register name.
 120 set pc ""
 121 if {[is_amd64_regs_target]} {
 122     set pc "rip"
 123 } elseif {[is_x86_like_target]} {
 124     set pc "eip"
 125 }
 126 if { $pc != "" } {
 127     gdb_test "python print ('result = %s' % (f0.read_register('pc') == f0.read_register('$pc')))" \
 128         " = True" \
 129         "test Frame.read_register($pc)"
 130 }
 131
 132 # Test language.
 133 gdb_test "python print(gdb.selected_frame().language())" "c"
 134 gdb_test "set language ada"
 135 gdb_test "python print(gdb.selected_frame().language())" "c" \
 136     "frame language is not affected by global language"
 137
 138 # This previously caused a crash -- the implementation was missing the
 139 # case where a register had an unexpected type.
 140 gdb_test "python print(gdb.selected_frame().read_register(list()))" \
 141     ".*Invalid type for register.*" \
 142     "test Frame.read_register with list"