/* Function return value location for IA64 ABI.
- Copyright (C) 2006-2010 Red Hat, Inc.
- This file is part of Red Hat elfutils.
+ Copyright (C) 2006-2010, 2014 Red Hat, Inc.
+ This file is part of 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.
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
- Red Hat elfutils is distributed in the hope that it will be useful, but
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ 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>. */
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#define nloc_aggregate 1
+static inline int
+compute_hfa (const Dwarf_Op *loc, int nregs,
+ const Dwarf_Op **locp, int fpregs_used)
+{
+ if (fpregs_used == 0)
+ *locp = loc;
+ else if (*locp != loc)
+ return 9;
+ return fpregs_used + nregs;
+}
+
/* If this type is an HFA small enough to be returned in FP registers,
return the number of registers to use. Otherwise 9, or -1 for errors. */
static int
If we find a datum that's not the same FP type as the first datum, punt.
If we count more than eight total homogeneous FP data, punt. */
- inline int hfa (const Dwarf_Op *loc, int nregs)
- {
- if (fpregs_used == 0)
- *locp = loc;
- else if (*locp != loc)
- return 9;
- return fpregs_used + nregs;
- }
-
- int tag = dwarf_tag (typedie);
+ int tag = DWARF_TAG_OR_RETURN (typedie);
switch (tag)
{
Dwarf_Attribute attr_mem;
&attr_mem), &encoding) != 0)
return -1;
+#define hfa(loc, nregs) compute_hfa(loc, nregs, locp, fpregs_used)
switch (encoding)
{
case DW_ATE_float:
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
-
- Dwarf_Attribute attr_mem;
- Dwarf_Attribute *attr = dwarf_attr_integrate (functypedie, DW_AT_type,
- &attr_mem);
- if (attr == NULL)
- /* The function has no return value, like a `void' function in C. */
- return 0;
-
- Dwarf_Die die_mem;
- Dwarf_Die *typedie = dwarf_formref_die (attr, &die_mem);
- int tag = dwarf_tag (typedie);
-
- /* Follow typedefs and qualifiers to get to the actual type. */
- while (tag == DW_TAG_typedef
- || tag == DW_TAG_const_type || tag == DW_TAG_volatile_type
- || tag == DW_TAG_restrict_type || tag == DW_TAG_mutable_type)
- {
- attr = dwarf_attr (typedie, DW_AT_type, &attr_mem);
- typedie = dwarf_formref_die (attr, &die_mem);
- tag = dwarf_tag (typedie);
- }
+ Dwarf_Die die_mem, *typedie = &die_mem;
+ int tag = dwarf_peeled_die_type (functypedie, typedie);
+ if (tag <= 0)
+ return tag;
Dwarf_Word size;
switch (tag)
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
+ Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
- tag = dwarf_tag (typedie);
+ tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
- if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
- &attr_mem), &size) != 0)
- {
- if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
- size = 8;
- else
- return -1;
- }
+ {
+ Dwarf_Attribute attr_mem;
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
+ &attr_mem), &size) != 0)
+ {
+ if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
+ size = 8;
+ else
+ return -1;
+ }
+ }
+
if (tag == DW_TAG_base_type)
{
+ Dwarf_Attribute attr_mem;
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
projects / platform / upstream / elfutils.git / blobdiff