--- /dev/null
+/* 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 "../libdw/dwarf.h"
+
+namespace
+{
+ struct dwarf_gnu_attributes
+ : public attribute_table
+ {
+ void unused (__attribute__ ((unused)) attribute const &attrib) const {}
+ dwarf_gnu_attributes ()
+ {
+ // It's rather hard to find any reference on some of the GNU
+ // extensions. So we simply mark these with unused.
+
+ // The MIPS documentation claims that these are "apparently only
+ // output in DWARF1, not DWARF2". I found nothing particular
+ // about how these are used.
+ unused (const_attribute (DW_AT_sf_names));
+ unused (const_attribute (DW_AT_src_info));
+ unused (const_attribute (DW_AT_mac_info));
+ unused (const_attribute (DW_AT_src_coords));
+ unused (const_attribute (DW_AT_body_begin));
+ unused (const_attribute (DW_AT_body_end));
+
+ add (flag_attribute (DW_AT_GNU_vector));
+
+ // http://gcc.gnu.org/wiki/ThreadSafetyAnnotationsInDWARF
+
+ // xxx these are glass cl_GNU_mutexlistptr. data4 and data8 are
+ // supposed to have this class. So how do we smuggle this class
+ // to whatever DW_FORM_data4 and DW_FORM_data8 have in current
+ // version? For now, just claim it's plain old constant.
+ add (const_attribute (DW_AT_GNU_guarded_by));
+ add (const_attribute (DW_AT_GNU_pt_guarded_by));
+ add (const_attribute (DW_AT_GNU_guarded));
+ add (const_attribute (DW_AT_GNU_pt_guarded));
+ add (const_attribute (DW_AT_GNU_locks_excluded));
+ add (const_attribute (DW_AT_GNU_exclusive_locks_required));
+ add (const_attribute (DW_AT_GNU_shared_locks_required));
+
+ // Contains a shallower 8-byte signature of the type described
+ // in the type unit. We encode it the same way as
+ // DW_AT_signature, which AFAICT is just a standardized name of
+ // DW_AT_GNU_odr_signature.
+ // http://gcc.gnu.org/wiki/DwarfSeparateTypeInfo
+ // http://wiki.dwarfstd.org/index.php?title=COMDAT_Type_Sections
+ add (ref_attribute (DW_AT_GNU_odr_signature));
+
+ add (string_attribute (DW_AT_GNU_template_name)); // xxx ???
+ }
+ };
+
+ struct dwarf_gnu_ext_t
+ : public std_dwarf
+ {
+ dwarf_gnu_ext_t ()
+ : std_dwarf (dwarf_gnu_attributes (), form_table ())
+ {}
+ };
+}
+
+dwarf_version const *
+dwarf_gnu_ext ()
+{
+ static dwarf_gnu_ext_t dw;
+ return &dw;
+}
--- /dev/null
+/* 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>. */
+
+#ifndef DWARFLINT_DWARF_GNU_HH
+#define DWARFLINT_DWARF_GNU_HH
+
+#include "dwarf_version.ii"
+
+dwarf_version const *dwarf_gnu_ext ();
+
+#endif//DWARFLINT_DWARF_GNU_HH
#include "dwarf_2.hh"
#include "dwarf_3.hh"
#include "dwarf_4.hh"
+#include "dwarf_gnu.hh"
#include "dwarf_mips.hh"
#include "check_debug_info.hh"
#include "pri.hh"
// I wonder how to solve this "right". We cannot simply request
// DW_AT_producer/DW_AT_language values here, since we need the
// version to know how to read these attributes in the first place.
+ //
+ // Similarly we assume the GNU extension is used.
+ static dwarf_version const *ext = extend (dwarf_mips_ext (), dwarf_gnu_ext ());
switch (version)
{
case 2:
{
- static dwarf_version const *dw = extend (dwarf_2 (), dwarf_mips_ext ());
+ static dwarf_version const *dw = extend (dwarf_2 (), ext);
return dw;
}
case 3:
{
- static dwarf_version const *dw = extend (dwarf_3 (), dwarf_mips_ext ());
+ static dwarf_version const *dw = extend (dwarf_3 (), ext);
return dw;
}
case 4:
{
- static dwarf_version const *dw = extend (dwarf_4 (), dwarf_mips_ext ());
+ static dwarf_version const *dw = extend (dwarf_4 (), ext);
return dw;
}
projects / thirdparty / elfutils.git / commitdiff
