diff options
Diffstat (limited to 'src/backends/sparc_retval.c')
| -rw-r--r-- | src/backends/sparc_retval.c | 92 |
1 files changed, 42 insertions, 50 deletions
diff --git a/src/backends/sparc_retval.c b/src/backends/sparc_retval.c index dcff67a2..e1b17753 100644 --- a/src/backends/sparc_retval.c +++ b/src/backends/sparc_retval.c @@ -1,27 +1,30 @@ /* Function return value location for SPARC. - 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> @@ -69,27 +72,10 @@ sparc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp) { /* 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_integrate (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) @@ -100,9 +86,10 @@ sparc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp) 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. */ @@ -110,19 +97,24 @@ sparc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp) 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) - { - uint8_t asize; - Dwarf_Die cudie; - if ((tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type) - && dwarf_diecu (typedie, &cudie, &asize, NULL) != NULL) - size = asize; - else - return -1; - } + { + Dwarf_Attribute attr_mem; + if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size, + &attr_mem), &size) != 0) + { + uint8_t asize; + Dwarf_Die cudie; + if ((tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type) + && dwarf_diecu (typedie, &cudie, &asize, NULL) != NULL) + size = asize; + 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), |