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

   1 # Copyright (C) 2010-2013 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 $testfile.exp $testfile $srcfile debug]} {
  24     return -1
  25 }
  26
  27 # Skip all tests if Python scripting is not enabled.
  28 if { [skip_python_tests] } { continue }
  29
  30 # Test looking up a global symbol before we runto_main as this is the
  31 # point where we don't have a current frame, and we don't want to
  32 # require one.
  33 gdb_py_test_silent_cmd "python main_func = gdb.lookup_global_symbol(\"main\")" "Lookup main" 1
  34 gdb_test "python print (main_func.is_function)" "True" "Test main_func.is_function"
  35 gdb_test "python print (gdb.lookup_global_symbol(\"junk\"))" "None" "Test lookup_global_symbol(\"junk\")"
  36
  37 gdb_test "python print (gdb.lookup_global_symbol('main').value())" "$hex .main." \
  38     "print value of main"
  39
  40 set qq_line [gdb_get_line_number "line of qq"]
  41 gdb_test "python print (gdb.lookup_global_symbol('qq').line)" "$qq_line" \
  42     "print line number of qq"
  43
  44 gdb_test "python print (gdb.lookup_global_symbol('qq').value())" "72" \
  45     "print value of qq"
  46
  47 gdb_test "python print (gdb.lookup_global_symbol('qq').needs_frame)" \
  48     "False" \
  49     "print whether qq needs a frame"
  50
  51
  52 if ![runto_main] then {
  53     fail "Can't run to main"
  54     return 0
  55 }
  56
  57 global hex decimal
  58
  59 gdb_breakpoint [gdb_get_line_number "Block break here."]
  60 gdb_continue_to_breakpoint "Block break here."
  61 gdb_py_test_silent_cmd "python frame = gdb.selected_frame()" "Get Frame" 0
  62 gdb_py_test_silent_cmd "python block = frame.block()" "Get block" 0
  63
  64 # Test is_argument attribute.
  65 gdb_py_test_silent_cmd "python arg = gdb.lookup_symbol(\"arg\")" "Get variable a" 0
  66 gdb_test "python print (arg\[0\].is_variable)" "False" "Test arg.is_variable"
  67 gdb_test "python print (arg\[0\].is_constant)" "False" "Test arg.is_constant"
  68 gdb_test "python print (arg\[0\].is_argument)" "True" "Test arg.is_argument"
  69 gdb_test "python print (arg\[0\].is_function)" "False" "Test arg.is_function"
  70
  71 # Test is_function attribute.
  72 gdb_py_test_silent_cmd "python func = frame.block().function" "Get block" 0
  73 gdb_test "python print (func.is_variable)" "False" "Test func.is_variable"
  74 gdb_test "python print (func.is_constant)" "False" "Test func.is_constant"
  75 gdb_test "python print (func.is_argument)" "False" "Test func.is_argument"
  76 gdb_test "python print (func.is_function)" "True" "Test func.is_function"
  77 gdb_test "python print (func.name)" "func" "Test func.name"
  78 gdb_test "python print (func.print_name)" "func" "Test func.print_name"
  79 gdb_test "python print (func.linkage_name)" "func" "Test func.linkage_name"
  80 gdb_test "python print (func.addr_class == gdb.SYMBOL_LOC_BLOCK)" "True" "Test func.addr_class"
  81
  82 gdb_breakpoint [gdb_get_line_number "Break at end."]
  83 gdb_continue_to_breakpoint "Break at end."
  84 gdb_py_test_silent_cmd "python frame = gdb.selected_frame()" "Get Frame" 0
  85
  86 # Test is_variable attribute.
  87 gdb_py_test_silent_cmd "python a = gdb.lookup_symbol(\'a\')" "Get variable a" 0
  88 gdb_test "python print (a\[0\].is_variable)" "True" "Test a.is_variable"
  89 gdb_test "python print (a\[0\].is_constant)" "False" "Test a.is_constant"
  90 gdb_test "python print (a\[0\].is_argument)" "False" "Test a.is_argument"
  91 gdb_test "python print (a\[0\].is_function)" "False" "Test a.is_function"
  92 gdb_test "python print (a\[0\].addr_class == gdb.SYMBOL_LOC_COMPUTED)" "True" "Test a.addr_class"
  93
  94 gdb_test "python print (a\[0\].value())" \
  95     "symbol requires a frame to compute its value.*"\
  96     "try to print value of a without a frame"
  97 gdb_test "python print (a\[0\].value(frame))" "0" \
  98     "print value of a"
  99 gdb_test "python print (a\[0\].needs_frame)" "True" \
 100     "print whether a needs a frame"
 101
 102 # Test is_constant attribute
 103 gdb_py_test_silent_cmd "python t = gdb.lookup_symbol(\"one\")" "Get variable a" 0
 104 gdb_test "python print (t\[0\].is_variable)" "False" "Test t.is_variable"
 105 gdb_test "python print (t\[0\].is_constant)" "True" "Test t.is_constant"
 106 gdb_test "python print (t\[0\].is_argument)" "False" "Test t.is_argument"
 107 gdb_test "python print (t\[0\].is_function)" "False" "Test t.is_function"
 108 gdb_test "python print (t\[0\].addr_class == gdb.SYMBOL_LOC_CONST)" "True" "Test t.addr_class"
 109
 110 # Test type attribute.
 111 gdb_test "python print (t\[0\].type)" "enum tag" "Get type"
 112
 113 # Test symtab attribute.
 114 gdb_test "python print (t\[0\].symtab)" "gdb.python/py-symbol.c.*" "Get symtab"
 115
 116 # C++ tests
 117 # Recompile binary.
 118  if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}-cxx" executable "debug c++"] != "" } {
 119      untested "Couldn't compile ${srcfile} in c++ mode"
 120      return -1
 121  }
 122
 123 # Start with a fresh gdb.
 124 gdb_exit
 125 gdb_start
 126 gdb_reinitialize_dir $srcdir/$subdir
 127 gdb_load ${binfile}-cxx
 128
 129 if ![runto_main] then {
 130     fail "Can't run to main"
 131     return 0
 132 }
 133
 134 gdb_breakpoint [gdb_get_line_number "Break in class."]
 135 gdb_continue_to_breakpoint "Break in class."
 136
 137 gdb_py_test_silent_cmd "python cplusframe = gdb.selected_frame()" "Get Frame" 0
 138 gdb_py_test_silent_cmd "python cplusfunc = cplusframe.block().function" "Get block" 0
 139 gdb_test "python print (cplusfunc.is_variable)" "False" "Test func.is_variable"
 140 gdb_test "python print (cplusfunc.is_constant)" "False" "Test func.is_constant"
 141 gdb_test "python print (cplusfunc.is_argument)" "False" "Test func.is_argument"
 142 gdb_test "python print (cplusfunc.is_function)" "True" "Test func.is_function"
 143 gdb_test "python print (cplusfunc.name)" "SimpleClass::valueofi().*" "Test func.name"
 144 gdb_test "python print (cplusfunc.print_name)" "SimpleClass::valueofi().*" "Test func.print_name"
 145 gdb_test "python print (cplusfunc.linkage_name)" "SimpleClass::valueofi().*" "Test func.linkage_name"
 146 gdb_test "python print (cplusfunc.addr_class == gdb.SYMBOL_LOC_BLOCK)" "True" "Test func.addr_class"
 147
 148 # Test is_valid when the objfile is unloaded.  This must be the last
 149 # test as it unloads the object file in GDB.
 150 # Start with a fresh gdb.
 151 clean_restart ${testfile}
 152 if ![runto_main] then {
 153     fail "Cannot run to main."
 154     return 0
 155 }
 156 gdb_breakpoint [gdb_get_line_number "Break at end."]
 157 gdb_continue_to_breakpoint "Break at end."
 158 gdb_py_test_silent_cmd "python a = gdb.lookup_symbol(\'a\')" "Get variable a" 0
 159 gdb_test "python print (a\[0\].is_valid())" "True" "Test symbol validity"
 160 delete_breakpoints
 161 gdb_unload
 162 gdb_test "python print (a\[0\].is_valid())" "False" "Test symbol validity"
 163 gdb_test_no_output "python a = None" "Test symbol destructor"