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-rw-r--r--lldb/include/lldb/Core/MappedHash.h6
-rw-r--r--lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp6
-rw-r--r--lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp3
3 files changed, 15 insertions, 0 deletions
diff --git a/lldb/include/lldb/Core/MappedHash.h b/lldb/include/lldb/Core/MappedHash.h
index 5a52ab2b8b2..b7cf3b02e01 100644
--- a/lldb/include/lldb/Core/MappedHash.h
+++ b/lldb/include/lldb/Core/MappedHash.h
@@ -47,6 +47,9 @@ public:
static uint32_t
HashString (uint32_t hash_function, const char *s)
{
+ if (!s)
+ return 0;
+
switch (hash_function)
{
case MappedHash::eHashFunctionDJB:
@@ -434,6 +437,9 @@ public:
bool
Find (const char *name, Pair &pair) const
{
+ if (!name || !name[0])
+ return false;
+
if (IsValid ())
{
const uint32_t bucket_count = m_header.bucket_count;
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp b/lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
index 0db416054ae..dc1d88fa9d3 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
@@ -671,6 +671,9 @@ DWARFMappedHash::MemoryTable::AppendAllDIEsInRange (const uint32_t die_offset_st
size_t
DWARFMappedHash::MemoryTable::FindByName (const char *name, DIEArray &die_offsets)
{
+ if (!name || !name[0])
+ return 0;
+
DIEInfoArray die_info_array;
if (FindByName(name, die_info_array))
DWARFMappedHash::ExtractDIEArray (die_info_array, die_offsets);
@@ -736,6 +739,9 @@ DWARFMappedHash::MemoryTable::FindCompleteObjCClassByName (const char *name,
size_t
DWARFMappedHash::MemoryTable::FindByName (const char *name, DIEInfoArray &die_info_array)
{
+ if (!name || !name[0])
+ return 0;
+
Pair kv_pair;
size_t old_size = die_info_array.size();
if (Find (name, kv_pair))
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 2088864bf6b..36cedb1ac88 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -3124,6 +3124,9 @@ SymbolFileDWARF::FindTypes (const std::vector<CompilerContext> &context,
ConstString name = context.back().name;
+ if (!name)
+ return 0;
+
if (m_using_apple_tables)
{
if (m_apple_types_ap.get())
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