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* NEWS: Document it. * data-directory/Makefile.in (PYTHON_FILES): Add gdb/types.py. * python/lib/gdb/types.py: New file. testsuite/ * lib/gdb-python.exp (gdb_check_python_config): New function. * gdb.python/Makefile.in (EXECUTABLES): Add lib-types. * gdb.python/lib-types.cc: New file. * gdb.python/lib-types.exp: New file. doc/ * gdb.texinfo (Python): Add "Python modules". (Types in Python): Add reference to gdb.types section. (Python modules): New node.binutils-2_21-branch
Doug Evans
16 years ago
11 changed files with 392 additions and 2 deletions
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# Type utilities. |
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# Copyright (C) 2010 Free Software Foundation, Inc. |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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"""Utilities for working with gdb.Types.""" |
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import gdb |
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def get_basic_type(type_): |
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"""Return the "basic" type of a type. |
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Arguments: |
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type_: The type to reduce to its basic type. |
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Returns: |
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type_ with const/volatile is stripped away, |
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and typedefs/references converted to the underlying type. |
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""" |
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while (type_.code == gdb.TYPE_CODE_REF or |
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type_.code == gdb.TYPE_CODE_TYPEDEF): |
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if type_.code == gdb.TYPE_CODE_REF: |
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type_ = type_.target() |
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else: |
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type_ = type_.strip_typedefs() |
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return type_.unqualified() |
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def has_field(type_, field): |
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"""Return True if a type has the specified field. |
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Arguments: |
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type_: The type to examine. |
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It must be one of gdb.TYPE_CODE_STRUCT, gdb.TYPE_CODE_UNION. |
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field: The name of the field to look up. |
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Returns: |
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True if the field is present either in type_ or any baseclass. |
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Raises: |
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TypeError: The type is not a struct or union. |
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""" |
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type_ = get_basic_type(type_) |
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if (type_.code != gdb.TYPE_CODE_STRUCT and |
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type_.code != gdb.TYPE_CODE_UNION): |
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raise TypeError("not a struct or union") |
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for f in type_.fields(): |
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if f.is_base_class: |
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if has_field(f.type, field): |
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return True |
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else: |
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# NOTE: f.name could be None |
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if f.name == field: |
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return True |
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return False |
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def make_enum_dict(enum_type): |
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"""Return a dictionary from a program's enum type. |
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Arguments: |
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enum_type: The enum to compute the dictionary for. |
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Returns: |
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The dictionary of the enum. |
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Raises: |
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TypeError: The type is not an enum. |
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""" |
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if enum_type.code != gdb.TYPE_CODE_ENUM: |
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raise TypeError("not an enum type") |
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enum_dict = {} |
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for field in enum_type.fields(): |
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# The enum's value is stored in "bitpos". |
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enum_dict[field.name] = field.bitpos |
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return enum_dict |
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2010 Free Software Foundation, Inc. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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class class1 |
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{ |
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public: |
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class1 (int _x) : x (_x) {} |
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int x; |
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}; |
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class1 class1_obj (42); |
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const class1 const_class1_obj (42); |
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volatile class1 volatile_class1_obj (42); |
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const volatile class1 const_volatile_class1_obj (42); |
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typedef class1 typedef_class1; |
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typedef_class1 typedef_class1_obj (42); |
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class1& class1_ref_obj (class1_obj); |
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typedef const typedef_class1 typedef_const_typedef_class1; |
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typedef_const_typedef_class1 typedef_const_typedef_class1_obj (42); |
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typedef typedef_const_typedef_class1& typedef_const_typedef_class1_ref; |
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typedef_const_typedef_class1_ref typedef_const_typedef_class1_ref_obj (typedef_const_typedef_class1_obj); |
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class subclass1 : public class1 |
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{ |
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public: |
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subclass1 (int _x, int _y) : class1 (_x), y (_y) {} |
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int y; |
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}; |
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subclass1 subclass1_obj (42, 43); |
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enum enum1 { A, B, C }; |
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enum1 enum1_obj (A); |
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int |
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main () |
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{ |
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return 0; |
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} |
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@ -0,0 +1,143 @@ |
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# Copyright (C) 2010 Free Software Foundation, Inc. |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# This file is part of the GDB testsuite. |
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# It tests the types.py module. |
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if $tracelevel then { |
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strace $tracelevel |
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} |
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load_lib gdb-python.exp |
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set testfile "lib-types" |
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set srcfile ${testfile}.cc |
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set binfile ${objdir}/${subdir}/${testfile} |
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } { |
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untested "Couldn't compile ${srcfile}" |
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return -1 |
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} |
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# Start with a fresh gdb. |
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gdb_exit |
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gdb_start |
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gdb_reinitialize_dir $srcdir/$subdir |
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gdb_load ${binfile} |
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# Skip all tests if Python scripting is not enabled. |
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if { [skip_python_tests] } { continue } |
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if ![runto_main] then { |
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fail "Can't run to main" |
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return 0 |
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} |
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# Ensure sys.path, et.al. are initialized properly. |
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gdb_check_python_config |
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gdb_test_no_output "python import gdb.types" |
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# test get_basic_type const stripping |
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gdb_test_no_output "python const_class1_obj = gdb.parse_and_eval ('const_class1_obj')" |
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gdb_test_no_output "python basic_type_const_class1_obj = gdb.types.get_basic_type (const_class1_obj.type)" |
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gdb_test "python print str (const_class1_obj.type)" "const class1" |
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set test "const stripping" |
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gdb_test_multiple "python print str (basic_type_const_class1_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test get_basic_type volatile stripping |
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gdb_test_no_output "python volatile_class1_obj = gdb.parse_and_eval ('volatile_class1_obj')" |
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gdb_test_no_output "python basic_type_volatile_class1_obj = gdb.types.get_basic_type (volatile_class1_obj.type)" |
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gdb_test "python print str (volatile_class1_obj.type)" "volatile class1" |
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set test "volatile stripping" |
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gdb_test_multiple "python print str (basic_type_volatile_class1_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test get_basic_type volatile+const stripping |
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gdb_test_no_output "python const_volatile_class1_obj = gdb.parse_and_eval ('const_volatile_class1_obj')" |
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gdb_test_no_output "python basic_type_const_volatile_class1_obj = gdb.types.get_basic_type (const_volatile_class1_obj.type)" |
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gdb_test "python print str (const_volatile_class1_obj.type)" "const volatile class1" |
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set test "volatile+const stripping" |
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gdb_test_multiple "python print str (basic_type_const_volatile_class1_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test get_basic_type typedef stripping |
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gdb_test_no_output "python typedef_class1_obj = gdb.parse_and_eval ('typedef_class1_obj')" |
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gdb_test_no_output "python basic_type_typedef_class1_obj = gdb.types.get_basic_type (typedef_class1_obj.type)" |
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gdb_test "python print str (typedef_class1_obj.type)" "typedef_class1" |
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set test "typedef stripping" |
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gdb_test_multiple "python print str (basic_type_typedef_class1_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test get_basic_type reference stripping |
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gdb_test_no_output "python class1_ref_obj = gdb.parse_and_eval ('class1_ref_obj')" |
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gdb_test_no_output "python basic_type_class1_ref_obj = gdb.types.get_basic_type (class1_ref_obj.type)" |
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gdb_test "python print str (class1_ref_obj.type)" "class1 &" |
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set test "reference stripping" |
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gdb_test_multiple "python print str (basic_type_class1_ref_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test nested typedef stripping |
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gdb_test_no_output "python typedef_const_typedef_class1_obj = gdb.parse_and_eval ('typedef_const_typedef_class1_obj')" |
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gdb_test_no_output "python basic_type_typedef_const_typedef_class1_obj = gdb.types.get_basic_type (typedef_const_typedef_class1_obj.type)" |
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gdb_test "python print str (typedef_class1_obj.type)" "typedef_class1" |
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set test "nested typedef stripping" |
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gdb_test_multiple "python print str (basic_type_typedef_const_typedef_class1_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test nested typedef/reference stripping |
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gdb_test_no_output "python typedef_const_typedef_class1_ref_obj = gdb.parse_and_eval ('typedef_const_typedef_class1_ref_obj')" |
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gdb_test_no_output "python basic_type_typedef_const_typedef_class1_ref_obj = gdb.types.get_basic_type (typedef_const_typedef_class1_ref_obj.type)" |
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gdb_test "python print str (typedef_const_typedef_class1_ref_obj.type)" "const typedef_const_typedef_class1_ref" |
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set test "nested typedef/ref stripping" |
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gdb_test_multiple "python print str (basic_type_typedef_const_typedef_class1_ref_obj)" $test { |
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-re "\[\r\n\]+class1\[\r\n\]+$gdb_prompt $" { |
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pass $test |
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} |
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} |
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# test has_field on simple class |
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gdb_test_no_output "python class1_obj = gdb.parse_and_eval ('class1_obj')" |
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gdb_test "python print gdb.types.has_field (class1_obj.type, 'x')" "True" |
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gdb_test "python print gdb.types.has_field (class1_obj.type, 'nope')" "False" |
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# test has_field in base class |
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gdb_test_no_output "python subclass1_obj = gdb.parse_and_eval ('subclass1_obj')" |
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gdb_test "python print gdb.types.has_field (subclass1_obj.type, 'x')" "True" |
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# test make_enum_dict |
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gdb_test_no_output "python enum1_obj = gdb.parse_and_eval ('enum1_obj')" |
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gdb_test_no_output "python enum1_dict = gdb.types.make_enum_dict (enum1_obj.type)" |
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gdb_test_no_output "python enum1_list = enum1_dict.items ()" |
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gdb_test_no_output "python enum1_list.sort ()" |
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gdb_test "python print enum1_list" {\[\('A', 0L\), \('B', 1L\), \('C', 2L\)\]} |
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