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-rw-r--r--lldb/include/lldb/Interpreter/OptionValueFileSpec.h2
-rw-r--r--lldb/include/lldb/Symbol/ObjectFile.h3
-rw-r--r--lldb/include/lldb/Target/Target.h2
-rw-r--r--lldb/include/lldb/Utility/DataBufferLLVM.h11
-rw-r--r--lldb/source/Interpreter/OptionValueFileSpec.cpp6
-rw-r--r--lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp22
-rw-r--r--lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp36
-rw-r--r--lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp10
-rw-r--r--lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp2
-rw-r--r--lldb/source/Symbol/ObjectFile.cpp5
-rw-r--r--lldb/source/Target/Target.cpp13
-rw-r--r--lldb/source/Utility/DataBufferLLVM.cpp28
12 files changed, 61 insertions, 79 deletions
diff --git a/lldb/include/lldb/Interpreter/OptionValueFileSpec.h b/lldb/include/lldb/Interpreter/OptionValueFileSpec.h
index b53c03471e2..293ecd0d805 100644
--- a/lldb/include/lldb/Interpreter/OptionValueFileSpec.h
+++ b/lldb/include/lldb/Interpreter/OptionValueFileSpec.h
@@ -77,7 +77,7 @@ public:
void SetDefaultValue(const FileSpec &value) { m_default_value = value; }
- const lldb::DataBufferSP &GetFileContents(bool null_terminate);
+ const lldb::DataBufferSP &GetFileContents();
void SetCompletionMask(uint32_t mask) { m_completion_mask = mask; }
diff --git a/lldb/include/lldb/Symbol/ObjectFile.h b/lldb/include/lldb/Symbol/ObjectFile.h
index 3f9250af7e0..dff802522da 100644
--- a/lldb/include/lldb/Symbol/ObjectFile.h
+++ b/lldb/include/lldb/Symbol/ObjectFile.h
@@ -879,6 +879,9 @@ protected:
ConstString GetNextSyntheticSymbolName();
+ static lldb::DataBufferSP MapFileData(const FileSpec &file, uint64_t Size,
+ uint64_t Offset);
+
private:
DISALLOW_COPY_AND_ASSIGN(ObjectFile);
};
diff --git a/lldb/include/lldb/Target/Target.h b/lldb/include/lldb/Target/Target.h
index 242ec14165e..a5d20006981 100644
--- a/lldb/include/lldb/Target/Target.h
+++ b/lldb/include/lldb/Target/Target.h
@@ -161,7 +161,7 @@ public:
lldb::LanguageType GetLanguage() const;
- const char *GetExpressionPrefixContentsAsCString();
+ llvm::StringRef GetExpressionPrefixContents();
bool GetUseHexImmediates() const;
diff --git a/lldb/include/lldb/Utility/DataBufferLLVM.h b/lldb/include/lldb/Utility/DataBufferLLVM.h
index 737e2d01904..0eb229cffbe 100644
--- a/lldb/include/lldb/Utility/DataBufferLLVM.h
+++ b/lldb/include/lldb/Utility/DataBufferLLVM.h
@@ -17,7 +17,7 @@
#include <stdint.h> // for uint8_t, uint64_t
namespace llvm {
-class MemoryBuffer;
+class WritableMemoryBuffer;
class Twine;
}
@@ -28,10 +28,10 @@ public:
~DataBufferLLVM();
static std::shared_ptr<DataBufferLLVM>
- CreateSliceFromPath(const llvm::Twine &Path, uint64_t Size, uint64_t Offset, bool Private = false);
+ CreateSliceFromPath(const llvm::Twine &Path, uint64_t Size, uint64_t Offset);
static std::shared_ptr<DataBufferLLVM>
- CreateFromPath(const llvm::Twine &Path, bool NullTerminate = false, bool Private = false);
+ CreateFromPath(const llvm::Twine &Path);
uint8_t *GetBytes() override;
const uint8_t *GetBytes() const override;
@@ -42,10 +42,9 @@ public:
private:
/// \brief Construct a DataBufferLLVM from \p Buffer. \p Buffer must be a
/// valid pointer.
- explicit DataBufferLLVM(std::unique_ptr<llvm::MemoryBuffer> Buffer);
- const uint8_t *GetBuffer() const;
+ explicit DataBufferLLVM(std::unique_ptr<llvm::WritableMemoryBuffer> Buffer);
- std::unique_ptr<llvm::MemoryBuffer> Buffer;
+ std::unique_ptr<llvm::WritableMemoryBuffer> Buffer;
};
}
diff --git a/lldb/source/Interpreter/OptionValueFileSpec.cpp b/lldb/source/Interpreter/OptionValueFileSpec.cpp
index b235d4ac686..7d17ddec4f9 100644
--- a/lldb/source/Interpreter/OptionValueFileSpec.cpp
+++ b/lldb/source/Interpreter/OptionValueFileSpec.cpp
@@ -113,14 +113,12 @@ size_t OptionValueFileSpec::AutoComplete(
return matches.GetSize();
}
-const lldb::DataBufferSP &
-OptionValueFileSpec::GetFileContents(bool null_terminate) {
+const lldb::DataBufferSP &OptionValueFileSpec::GetFileContents() {
if (m_current_value) {
const auto file_mod_time = FileSystem::GetModificationTime(m_current_value);
if (m_data_sp && m_data_mod_time == file_mod_time)
return m_data_sp;
- m_data_sp = DataBufferLLVM::CreateFromPath(m_current_value.GetPath(),
- null_terminate);
+ m_data_sp = DataBufferLLVM::CreateFromPath(m_current_value.GetPath());
m_data_mod_time = file_mod_time;
}
return m_data_sp;
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index 17d892450e4..36027dde043 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -24,7 +24,6 @@
#include "lldb/Target/Target.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
-#include "lldb/Utility/DataBufferLLVM.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/Stream.h"
@@ -406,8 +405,7 @@ ObjectFile *ObjectFileELF::CreateInstance(const lldb::ModuleSP &module_sp,
lldb::offset_t file_offset,
lldb::offset_t length) {
if (!data_sp) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset, true);
+ data_sp = MapFileData(*file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
@@ -424,8 +422,7 @@ ObjectFile *ObjectFileELF::CreateInstance(const lldb::ModuleSP &module_sp,
// Update the data to contain the entire file if it doesn't already
if (data_sp->GetByteSize() < length) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset, true);
+ data_sp = MapFileData(*file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
@@ -684,8 +681,7 @@ size_t ObjectFileELF::GetModuleSpecifications(
size_t section_header_end = header.e_shoff + header.e_shentsize;
if (header.HasHeaderExtension() &&
section_header_end > data_sp->GetByteSize()) {
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- file.GetPath(), section_header_end, file_offset);
+ data_sp = MapFileData(file, section_header_end, file_offset);
if (data_sp) {
data.SetData(data_sp);
lldb::offset_t header_offset = data_offset;
@@ -698,8 +694,7 @@ size_t ObjectFileELF::GetModuleSpecifications(
section_header_end =
header.e_shoff + header.e_shnum * header.e_shentsize;
if (section_header_end > data_sp->GetByteSize()) {
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- file.GetPath(), section_header_end, file_offset);
+ data_sp = MapFileData(file, section_header_end, file_offset);
if (data_sp)
data.SetData(data_sp);
}
@@ -741,8 +736,7 @@ size_t ObjectFileELF::GetModuleSpecifications(
size_t program_headers_end =
header.e_phoff + header.e_phnum * header.e_phentsize;
if (program_headers_end > data_sp->GetByteSize()) {
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- file.GetPath(), program_headers_end, file_offset);
+ data_sp = MapFileData(file, program_headers_end, file_offset);
if (data_sp)
data.SetData(data_sp);
}
@@ -757,8 +751,7 @@ size_t ObjectFileELF::GetModuleSpecifications(
}
if (segment_data_end > data_sp->GetByteSize()) {
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- file.GetPath(), segment_data_end, file_offset);
+ data_sp = MapFileData(file, segment_data_end, file_offset);
if (data_sp)
data.SetData(data_sp);
}
@@ -767,8 +760,7 @@ size_t ObjectFileELF::GetModuleSpecifications(
CalculateELFNotesSegmentsCRC32(program_headers, data);
} else {
// Need to map entire file into memory to calculate the crc.
- data_sp = DataBufferLLVM::CreateSliceFromPath(file.GetPath(), -1,
- file_offset);
+ data_sp = MapFileData(file, -1, file_offset);
if (data_sp) {
data.SetData(data_sp);
gnu_debuglink_crc = calc_gnu_debuglink_crc32(
diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index df334f88ee3..e6941c9f6ed 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -38,7 +38,7 @@
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadList.h"
#include "lldb/Utility/ArchSpec.h"
-#include "lldb/Utility/DataBufferLLVM.h"
+#include "lldb/Utility/DataBuffer.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Status.h"
@@ -862,8 +862,7 @@ ObjectFile *ObjectFileMachO::CreateInstance(const lldb::ModuleSP &module_sp,
lldb::offset_t file_offset,
lldb::offset_t length) {
if (!data_sp) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset);
+ data_sp = MapFileData(*file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
@@ -874,8 +873,7 @@ ObjectFile *ObjectFileMachO::CreateInstance(const lldb::ModuleSP &module_sp,
// Update the data to contain the entire file if it doesn't already
if (data_sp->GetByteSize() < length) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset);
+ data_sp = MapFileData(*file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
@@ -914,8 +912,7 @@ size_t ObjectFileMachO::GetModuleSpecifications(
size_t header_and_load_cmds =
header.sizeofcmds + MachHeaderSizeFromMagic(header.magic);
if (header_and_load_cmds >= data_sp->GetByteSize()) {
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- file.GetPath(), header_and_load_cmds, file_offset);
+ data_sp = MapFileData(file, header_and_load_cmds, file_offset);
data.SetData(data_sp);
data_offset = MachHeaderSizeFromMagic(header.magic);
}
@@ -1127,8 +1124,7 @@ bool ObjectFileMachO::ParseHeader() {
ReadMemory(process_sp, m_memory_addr, header_and_lc_size);
} else {
// Read in all only the load command data from the file on disk
- data_sp = DataBufferLLVM::CreateSliceFromPath(
- m_file.GetPath(), header_and_lc_size, m_file_offset);
+ data_sp = MapFileData(m_file, header_and_lc_size, m_file_offset);
if (data_sp->GetByteSize() != header_and_lc_size)
return false;
}
@@ -2100,9 +2096,8 @@ UUID ObjectFileMachO::GetSharedCacheUUID(FileSpec dyld_shared_cache,
const ByteOrder byte_order,
const uint32_t addr_byte_size) {
UUID dsc_uuid;
- DataBufferSP DscData = DataBufferLLVM::CreateSliceFromPath(
- dyld_shared_cache.GetPath(),
- sizeof(struct lldb_copy_dyld_cache_header_v1), 0);
+ DataBufferSP DscData = MapFileData(
+ dyld_shared_cache, sizeof(struct lldb_copy_dyld_cache_header_v1), 0);
if (!DscData)
return dsc_uuid;
DataExtractor dsc_header_data(DscData, byte_order, addr_byte_size);
@@ -2708,9 +2703,8 @@ size_t ObjectFileMachO::ParseSymtab() {
// Process the dyld shared cache header to find the unmapped symbols
- DataBufferSP dsc_data_sp = DataBufferLLVM::CreateSliceFromPath(
- dsc_filespec.GetPath(), sizeof(struct lldb_copy_dyld_cache_header_v1),
- 0);
+ DataBufferSP dsc_data_sp = MapFileData(
+ dsc_filespec, sizeof(struct lldb_copy_dyld_cache_header_v1), 0);
if (!dsc_uuid.IsValid()) {
dsc_uuid = GetSharedCacheUUID(dsc_filespec, byte_order, addr_byte_size);
}
@@ -2742,11 +2736,9 @@ size_t ObjectFileMachO::ParseSymtab() {
if (uuid_match &&
mappingOffset >= sizeof(struct lldb_copy_dyld_cache_header_v1)) {
- DataBufferSP dsc_mapping_info_data_sp =
- DataBufferLLVM::CreateSliceFromPath(
- dsc_filespec.GetPath(),
- sizeof(struct lldb_copy_dyld_cache_mapping_info),
- mappingOffset);
+ DataBufferSP dsc_mapping_info_data_sp = MapFileData(
+ dsc_filespec, sizeof(struct lldb_copy_dyld_cache_mapping_info),
+ mappingOffset);
DataExtractor dsc_mapping_info_data(dsc_mapping_info_data_sp,
byte_order, addr_byte_size);
@@ -2770,9 +2762,7 @@ size_t ObjectFileMachO::ParseSymtab() {
if (localSymbolsOffset && localSymbolsSize) {
// Map the local symbols
DataBufferSP dsc_local_symbols_data_sp =
- DataBufferLLVM::CreateSliceFromPath(dsc_filespec.GetPath(),
- localSymbolsSize,
- localSymbolsOffset);
+ MapFileData(dsc_filespec, localSymbolsSize, localSymbolsOffset);
if (dsc_local_symbols_data_sp) {
DataExtractor dsc_local_symbols_data(dsc_local_symbols_data_sp,
diff --git a/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp b/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
index 72b1b15f08f..77bfa7fe0a6 100644
--- a/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
+++ b/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
@@ -22,7 +22,6 @@
#include "lldb/Target/Target.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
-#include "lldb/Utility/DataBufferLLVM.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/Utility/Timer.h"
@@ -66,8 +65,7 @@ ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp,
lldb::offset_t file_offset,
lldb::offset_t length) {
if (!data_sp) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset);
+ data_sp = MapFileData(file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
@@ -78,8 +76,7 @@ ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp,
// Update the data to contain the entire file if it doesn't already
if (data_sp->GetByteSize() < length) {
- data_sp =
- DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset);
+ data_sp = MapFileData(file, length, file_offset);
if (!data_sp)
return nullptr;
}
@@ -436,8 +433,7 @@ DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) {
if (m_file) {
// A bit of a hack, but we intend to write to this buffer, so we can't
// mmap it.
- auto buffer_sp =
- DataBufferLLVM::CreateSliceFromPath(m_file.GetPath(), size, offset, true);
+ auto buffer_sp = MapFileData(m_file, size, offset);
return DataExtractor(buffer_sp, GetByteOrder(), GetAddressByteSize());
}
ProcessSP process_sp(m_process_wp.lock());
diff --git a/lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp b/lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp
index b39aa103f1d..b04d72f755f 100644
--- a/lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp
+++ b/lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp
@@ -1173,7 +1173,7 @@ const char *PlatformDarwin::GetDeveloperDirectory() {
xcode_dir_path.append("/usr/share/xcode-select/xcode_dir_path");
temp_file_spec.SetFile(xcode_dir_path, false);
auto dir_buffer =
- DataBufferLLVM::CreateFromPath(temp_file_spec.GetPath(), true);
+ DataBufferLLVM::CreateFromPath(temp_file_spec.GetPath());
if (dir_buffer && dir_buffer->GetByteSize() > 0) {
llvm::StringRef path_ref(dir_buffer->GetChars());
// Trim tailing newlines and make sure there is enough room for a null
diff --git a/lldb/source/Symbol/ObjectFile.cpp b/lldb/source/Symbol/ObjectFile.cpp
index 7d73cb19d50..2129a4463cd 100644
--- a/lldb/source/Symbol/ObjectFile.cpp
+++ b/lldb/source/Symbol/ObjectFile.cpp
@@ -688,3 +688,8 @@ Status ObjectFile::LoadInMemory(Target &target, bool set_pc) {
void ObjectFile::RelocateSection(lldb_private::Section *section)
{
}
+
+DataBufferSP ObjectFile::MapFileData(const FileSpec &file, uint64_t Size,
+ uint64_t Offset) {
+ return DataBufferLLVM::CreateSliceFromPath(file.GetPath(), Size, Offset);
+}
diff --git a/lldb/source/Target/Target.cpp b/lldb/source/Target/Target.cpp
index 903f50887fe..fdc10cf4827 100644
--- a/lldb/source/Target/Target.cpp
+++ b/lldb/source/Target/Target.cpp
@@ -2313,7 +2313,7 @@ ExpressionResults Target::EvaluateExpression(
result_valobj_sp = persistent_var_sp->GetValueObject();
execution_results = eExpressionCompleted;
} else {
- const char *prefix = GetExpressionPrefixContentsAsCString();
+ llvm::StringRef prefix = GetExpressionPrefixContents();
Status error;
execution_results = UserExpression::Evaluate(exe_ctx, options, expr, prefix,
result_valobj_sp, error,
@@ -4046,18 +4046,19 @@ LanguageType TargetProperties::GetLanguage() const {
return LanguageType();
}
-const char *TargetProperties::GetExpressionPrefixContentsAsCString() {
+llvm::StringRef TargetProperties::GetExpressionPrefixContents() {
const uint32_t idx = ePropertyExprPrefix;
OptionValueFileSpec *file =
m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpec(nullptr, false,
idx);
if (file) {
- const bool null_terminate = true;
- DataBufferSP data_sp(file->GetFileContents(null_terminate));
+ DataBufferSP data_sp(file->GetFileContents());
if (data_sp)
- return (const char *)data_sp->GetBytes();
+ return llvm::StringRef(
+ reinterpret_cast<const char *>(data_sp->GetBytes()),
+ data_sp->GetByteSize());
}
- return nullptr;
+ return "";
}
bool TargetProperties::GetBreakpointsConsultPlatformAvoidList() {
diff --git a/lldb/source/Utility/DataBufferLLVM.cpp b/lldb/source/Utility/DataBufferLLVM.cpp
index bebcafbf915..713c3c2814e 100644
--- a/lldb/source/Utility/DataBufferLLVM.cpp
+++ b/lldb/source/Utility/DataBufferLLVM.cpp
@@ -18,7 +18,8 @@
using namespace lldb_private;
-DataBufferLLVM::DataBufferLLVM(std::unique_ptr<llvm::MemoryBuffer> MemBuffer)
+DataBufferLLVM::DataBufferLLVM(
+ std::unique_ptr<llvm::WritableMemoryBuffer> MemBuffer)
: Buffer(std::move(MemBuffer)) {
assert(Buffer != nullptr &&
"Cannot construct a DataBufferLLVM with a null buffer");
@@ -28,13 +29,13 @@ DataBufferLLVM::~DataBufferLLVM() {}
std::shared_ptr<DataBufferLLVM>
DataBufferLLVM::CreateSliceFromPath(const llvm::Twine &Path, uint64_t Size,
- uint64_t Offset, bool Private) {
+ uint64_t Offset) {
// If the file resides non-locally, pass the volatile flag so that we don't
// mmap it.
- if (!Private)
- Private = !llvm::sys::fs::is_local(Path);
+ bool IsVolatile = !llvm::sys::fs::is_local(Path);
- auto Buffer = llvm::MemoryBuffer::getFileSlice(Path, Size, Offset, Private);
+ auto Buffer =
+ llvm::WritableMemoryBuffer::getFileSlice(Path, Size, Offset, IsVolatile);
if (!Buffer)
return nullptr;
return std::shared_ptr<DataBufferLLVM>(
@@ -42,13 +43,12 @@ DataBufferLLVM::CreateSliceFromPath(const llvm::Twine &Path, uint64_t Size,
}
std::shared_ptr<DataBufferLLVM>
-DataBufferLLVM::CreateFromPath(const llvm::Twine &Path, bool NullTerminate, bool Private) {
+DataBufferLLVM::CreateFromPath(const llvm::Twine &Path) {
// If the file resides non-locally, pass the volatile flag so that we don't
// mmap it.
- if (!Private)
- Private = !llvm::sys::fs::is_local(Path);
+ bool IsVolatile = !llvm::sys::fs::is_local(Path);
- auto Buffer = llvm::MemoryBuffer::getFile(Path, -1, NullTerminate, Private);
+ auto Buffer = llvm::WritableMemoryBuffer::getFile(Path, -1, IsVolatile);
if (!Buffer)
return nullptr;
return std::shared_ptr<DataBufferLLVM>(
@@ -56,15 +56,13 @@ DataBufferLLVM::CreateFromPath(const llvm::Twine &Path, bool NullTerminate, bool
}
uint8_t *DataBufferLLVM::GetBytes() {
- return const_cast<uint8_t *>(GetBuffer());
+ return reinterpret_cast<uint8_t *>(Buffer->getBufferStart());
}
-const uint8_t *DataBufferLLVM::GetBytes() const { return GetBuffer(); }
+const uint8_t *DataBufferLLVM::GetBytes() const {
+ return reinterpret_cast<const uint8_t *>(Buffer->getBufferStart());
+}
lldb::offset_t DataBufferLLVM::GetByteSize() const {
return Buffer->getBufferSize();
}
-
-const uint8_t *DataBufferLLVM::GetBuffer() const {
- return reinterpret_cast<const uint8_t *>(Buffer->getBufferStart());
-}
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