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/* Pedantic checking of DWARF files
Copyright (C) 2010 Red Hat, Inc.
This file is part of Red Hat elfutils.
Red Hat elfutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the
Free Software Foundation; version 2 of the License.
Red Hat elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with Red Hat elfutils; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
Red Hat elfutils is an included package of the Open Invention Network.
An included package of the Open Invention Network is a package for which
Open Invention Network licensees cross-license their patents. No patent
license is granted, either expressly or impliedly, by designation as an
included package. Should you wish to participate in the Open Invention
Network licensing program, please visit www.openinventionnetwork.com
<http://www.openinventionnetwork.com>. */
#include "dwarf_version-imp.hh"
#include "dwarf_2.hh"
#include "dwarf_3.hh"
#include "../libdw/dwarf.h"
#include <cassert>
namespace
{
struct dwarf_3_attributes
: public attribute_table
{
dwarf_3_attributes ()
{
add (location_attribute (DW_AT_location));
add (dynval_attribute (DW_AT_byte_size));
add (dynval_attribute (DW_AT_bit_offset));
add (dynval_attribute (DW_AT_bit_size));
add (location_attribute (DW_AT_string_length));
add (dynval_attribute (DW_AT_lower_bound));
add (location_attribute (DW_AT_return_addr));
// Note, DWARF 3 claims only a const class for DW_AT_bit_stride,
// but from 2.19 it's clear that this is an omission.
add (dynval_attribute (DW_AT_bit_stride));
add (dynval_attribute (DW_AT_upper_bound));
add (dynval_attribute (DW_AT_count));
add (attribute (DW_AT_data_member_location,
dw_class_set (cl_exprloc, cl_constant, cl_loclistptr)));
add (location_attribute (DW_AT_frame_base));
add (location_attribute (DW_AT_segment));
add (location_attribute (DW_AT_static_link));
add (location_attribute (DW_AT_use_location));
add (location_attribute (DW_AT_vtable_elem_location));
add (dynval_attribute (DW_AT_allocated));
add (dynval_attribute (DW_AT_associated));
add (attribute (DW_AT_data_location, cl_exprloc));
add (dynval_attribute (DW_AT_byte_stride));
add (addr_attribute (DW_AT_entry_pc));
add (flag_attribute (DW_AT_use_UTF8));
add (ref_attribute (DW_AT_extension));
add (attribute (DW_AT_ranges, cl_rangelistptr));
add (attribute (DW_AT_trampoline,
dw_class_set (cl_address, cl_flag,
cl_reference, cl_string)));
add (const_attribute (DW_AT_call_column));
add (const_attribute (DW_AT_call_file));
add (const_attribute (DW_AT_call_line));
add (string_attribute (DW_AT_description));
add (const_attribute (DW_AT_binary_scale));
add (const_attribute (DW_AT_decimal_scale));
add (ref_attribute (DW_AT_small));
add (const_attribute (DW_AT_decimal_sign));
add (const_attribute (DW_AT_digit_count));
add (string_attribute (DW_AT_picture_string));
add (flag_attribute (DW_AT_mutable));
add (flag_attribute (DW_AT_threads_scaled));
add (flag_attribute (DW_AT_explicit));
add (ref_attribute (DW_AT_object_pointer));
add (const_attribute (DW_AT_endianity));
add (flag_attribute (DW_AT_elemental));
add (flag_attribute (DW_AT_pure));
add (flag_attribute (DW_AT_recursive));
}
};
struct dwarf_3_forms
: public form_table
{
dwarf_3_forms ()
{
add (offset_form (DW_FORM_ref_addr, cl_reference));
// In DWARF 2 we made all the const forms into various cl_*ptr,
// since that's how the standard was worded: it allowed
// DW_AT_location to have any constant form. In DWARF 3, only
// data4 and data8 are like this. In addition, these two can
// also be cl_rangelistptr.
typedef preset_form<sc_value,
cl_constant, cl_lineptr, cl_loclistptr,
cl_macptr, cl_rangelistptr> dw3_data_form;
add (const_form (DW_FORM_data1, fw_1));
add (const_form (DW_FORM_data2, fw_2));
add (dw3_data_form (DW_FORM_data4, fw_4));
add (dw3_data_form (DW_FORM_data8, fw_8));
add (const_form (DW_FORM_sdata, fw_sleb));
add (const_form (DW_FORM_udata, fw_uleb));
}
};
struct dwarf_3_ext_t
: public std_dwarf
{
dwarf_3_ext_t ()
: std_dwarf (dwarf_3_attributes (), dwarf_3_forms ())
{}
dw_class
ambiguous_class (__attribute__ ((unused)) form const *form,
attribute const *attribute,
dw_class_set const &candidates) const
{
assert (attribute->name () == DW_AT_data_member_location);
assert (candidates == dw_class_set (cl_constant, cl_loclistptr));
return cl_loclistptr;
}
};
}
dwarf_version const *
dwarf_3_ext ()
{
static dwarf_3_ext_t dw;
return &dw;
}
dwarf_version const *
dwarf_3 ()
{
static dwarf_version const *dw =
dwarf_version::extend (dwarf_2 (), dwarf_3_ext ());
return dw;
}
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