--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/elf4rom/src/dwarfarangesmanager.cpp Fri Jan 15 09:07:44 2010 +0000
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of 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.
+*
+* This program 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 Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <iostream>
+#include "dwarfmanager.h"
+#include "inputfile.h"
+
+const string DwarfArangesManager::iArangesSectionName(".debug_aranges");
+
+void DwarfArangesManager::ProcessSection(FileShdrPair & aPair, Dwarf_Byte_Ptr start, Dwarf_Byte_Ptr end){
+ while (start < end){
+ Dwarf_Byte_Ptr data = start;
+ size_t offset_size, initial_length_size;
+
+ Dwarf_Word length = READ_UNALIGNED4(data);
+ data += 4;
+
+ if (length >= 0xfffffff0u) {
+ cerr << "Error: 64 bit DWARF not supported\n";
+ exit(EXIT_FAILURE);
+ } else {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ start += length + initial_length_size;
+
+ Dwarf_Half version = READ_UNALIGNED2(data);
+ data += 2;
+
+ Dwarf_Word offset = GetValue(data, offset_size);
+ Dwarf_Word newOffset = CheckNewOffset(iDwarfInfoManager.GetSectionOffset(aPair.iXIPFileDetails.iElfFile), offset);
+ if (offset != newOffset)
+ WriteValue(data, offset, offset_size);
+ data += offset_size;
+
+
+ size_t pointer_size = *data++;
+
+ size_t segment_size = *data++;
+
+ if (version != 2 && version != 3){
+ static bool warned = false;
+ if (!warned){
+ cerr << "Only DWARF 2 and 3 aranges are currently supported\n";
+ warned = true;
+ }
+ continue;
+ }
+
+ size_t address_size = pointer_size + segment_size;
+
+ if (address_size > 4){
+ static bool warned2 = false;
+ if (!warned2){
+ cerr << "64 bit DWARF not currently supported\n";
+ warned2 = true;
+ }
+ continue;
+ }
+
+ Dwarf_Byte_Ptr ranges = data;
+
+ /* Must pad to an alignment boundary that is twice the address size. */
+ size_t excess = (data - start) % (2 * address_size);
+ if (excess)
+ ranges += (2 * address_size) - excess;
+
+ while (ranges + 2 * address_size <= start){
+ LinearAddr addr = GetValue(ranges, address_size);
+ LinearAddr relocatedAddress = aPair.iXIPFileDetails.Relocate(addr);
+ if (addr != relocatedAddress)
+ WriteValue(ranges, relocatedAddress, address_size);
+ ranges += address_size;
+ // skip length field
+ ranges += address_size;
+ }
+ }
+}