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[pdbdump] Verify TPI hash for LF_ENUM type records.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama 2016-06-14 22:25:07 +00:00
parent 71423ee3dd
commit 2c70155651
1 changed files with 21 additions and 5 deletions
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26
lib/DebugInfo/PDB/Raw/TpiStream.cpp
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@ -73,15 +73,31 @@ TpiStream::~TpiStream() {}
// Currently we only verify SRC_LINE records.
static Error verifyTIHash(const codeview::CVType &Rec, uint32_t Expected,
uint32_t NumHashBuckets) {
using namespace codeview;
ArrayRef<uint8_t> D = Rec.Data;
if (Rec.Type == codeview::LF_UDT_SRC_LINE ||
Rec.Type == codeview::LF_UDT_MOD_SRC_LINE) {
uint32_t Hash =
hashStringV1(StringRef((const char *)D.data(), 4)) % NumHashBuckets;
if (Hash != Expected)
uint32_t Hash;
switch (Rec.Type) {
case LF_UDT_SRC_LINE:
case LF_UDT_MOD_SRC_LINE:
Hash = hashStringV1(StringRef((const char *)D.data(), 4));
break;
case LF_ENUM: {
ErrorOr<EnumRecord> Enum = EnumRecord::deserialize(TypeRecordKind::Enum, D);
if (Enum.getError())
return make_error<RawError>(raw_error_code::corrupt_file,
"Corrupt TPI hash table.");
Hash = hashStringV1(Enum->getName());
break;
}
default:
return Error::success();
}
if ((Hash % NumHashBuckets) != Expected)
return make_error<RawError>(raw_error_code::corrupt_file,
"Corrupt TPI hash table.");
return Error::success();
}