1 //===-- DWARFDebugRangesList.cpp ------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "DWARFDebugRangeList.h"
11 #include "llvm/Support/Format.h"
12 #include "llvm/Support/raw_ostream.h"
16 void DWARFDebugRangeList::clear() {
22 bool DWARFDebugRangeList::extract(DataExtractor data, uint32_t *offset_ptr) {
24 if (!data.isValidOffset(*offset_ptr))
26 AddressSize = data.getAddressSize();
27 if (AddressSize != 4 && AddressSize != 8)
32 uint32_t prev_offset = *offset_ptr;
33 entry.StartAddress = data.getAddress(offset_ptr);
34 entry.EndAddress = data.getAddress(offset_ptr);
35 // Check that both values were extracted correctly.
36 if (*offset_ptr != prev_offset + 2 * AddressSize) {
40 // The end of any given range list is marked by an end of list entry,
41 // which consists of a 0 for the beginning address offset
42 // and a 0 for the ending address offset.
43 if (entry.StartAddress == 0 && entry.EndAddress == 0)
45 Entries.push_back(entry);
50 void DWARFDebugRangeList::dump(raw_ostream &OS) const {
51 for (int i = 0, n = Entries.size(); i != n; ++i) {
52 const char *format_str = (AddressSize == 4
53 ? "%08x %08"PRIx64" %08"PRIx64"\n"
54 : "%08x %016"PRIx64" %016"PRIx64"\n");
55 OS << format(format_str, Offset, Entries[i].StartAddress,
56 Entries[i].EndAddress);
58 OS << format("%08x <End of list>\n", Offset);