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c65ca6797f
I imagine there's some UB in here somewhere, though Valgrind doesn't seem to have picked it up (not sure if I have a working asan build right now to test there). GDB bot seems to be crashing: http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/26267/steps/check-all/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dwp.test Hexagon ELF bot is, presumably, just getting different output: http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/32927/steps/check-all/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dwp.test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252859 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
//===-- DWARFUnitIndex.cpp ------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/DWARF/DWARFUnitIndex.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/ErrorHandling.h"
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namespace llvm {
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bool DWARFUnitIndex::Header::parse(DataExtractor IndexData,
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uint32_t *OffsetPtr) {
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if (!IndexData.isValidOffsetForDataOfSize(*OffsetPtr, 16))
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return false;
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Version = IndexData.getU32(OffsetPtr);
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NumColumns = IndexData.getU32(OffsetPtr);
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NumUnits = IndexData.getU32(OffsetPtr);
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NumBuckets = IndexData.getU32(OffsetPtr);
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return Version <= 2;
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}
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void DWARFUnitIndex::Header::dump(raw_ostream &OS) const {
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OS << "Index header:\n" << format(" version: %u\n", Version)
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<< format(" columns: %u\n", NumColumns)
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<< format(" units: %u\n", NumUnits)
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<< format(" buckets: %u\n", NumBuckets);
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}
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bool DWARFUnitIndex::parse(DataExtractor IndexData) {
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uint32_t Offset = 0;
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if (!Header.parse(IndexData, &Offset))
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return false;
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if (!IndexData.isValidOffsetForDataOfSize(
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Offset, Header.NumBuckets * (8 + 4) +
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(2 * Header.NumUnits + 1) * 4 * Header.NumColumns))
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return false;
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return true;
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}
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StringRef DWARFUnitIndex::getColumnHeader(DwarfSection DS) {
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#define CASE(DS) \
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case DW_SECT_##DS: \
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return #DS;
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switch (DS) {
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CASE(INFO);
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CASE(TYPES);
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CASE(ABBREV);
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CASE(LINE);
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CASE(LOC);
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CASE(STR_OFFSETS);
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CASE(MACINFO);
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CASE(MACRO);
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}
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llvm_unreachable("unknown DwarfSection");
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}
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void DWARFUnitIndex::dump(raw_ostream &OS) const {
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Header.dump(OS);
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}
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}
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