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[MappedHash] Fix alignment violations 

This fixes a few alignment problems pointed out by UBSan, and is
otherwise NFC.

llvm-svn: 319934
This commit is contained in:
Vedant Kumar 2017-12-06 19:21:08 +00:00
parent efb5024e57
commit a73324b0a9
1 changed files with 9 additions and 6 deletions
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15
lldb/include/lldb/Core/MappedHash.h
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@ -357,21 +357,24 @@ public:
}
uint32_t GetHashIndex(uint32_t bucket_idx) const {
uint32_t result = UINT32_MAX;
if (m_hash_indexes && bucket_idx < m_header.bucket_count)
return m_hash_indexes[bucket_idx];
return UINT32_MAX;
memcpy(&result, m_hash_indexes + bucket_idx, sizeof(uint32_t));
return result;
}
uint32_t GetHashValue(uint32_t hash_idx) const {
uint32_t result = UINT32_MAX;
if (m_hash_values && hash_idx < m_header.hashes_count)
return m_hash_values[hash_idx];
return UINT32_MAX;
memcpy(&result, m_hash_values + hash_idx, sizeof(uint32_t));
return result;
}
uint32_t GetHashDataOffset(uint32_t hash_idx) const {
uint32_t result = UINT32_MAX;
if (m_hash_offsets && hash_idx < m_header.hashes_count)
return m_hash_offsets[hash_idx];
return UINT32_MAX;
memcpy(&result, m_hash_offsets + hash_idx, sizeof(uint32_t));
return result;
}
bool Find(const char *name, Pair &pair) const {