#include "ObjectFileWasm.h"#include "lldb/Core/Module.h"#include "lldb/Core/ModuleSpec.h"#include "lldb/Core/PluginManager.h"#include "lldb/Core/Section.h"#include "lldb/Target/Process.h"#include "lldb/Target/SectionLoadList.h"#include "lldb/Target/Target.h"#include "lldb/Utility/DataBufferHeap.h"#include "lldb/Utility/LLDBLog.h"#include "lldb/Utility/Log.h"#include "llvm/ADT/ArrayRef.h"#include "llvm/ADT/SmallVector.h"#include "llvm/ADT/StringRef.h"#include "llvm/BinaryFormat/Magic.h"#include "llvm/BinaryFormat/Wasm.h"#include "llvm/Support/CheckedArithmetic.h"#include "llvm/Support/Endian.h"#include "llvm/Support/Format.h"#include <optional>Go to the source code of this file.
Classes | |
| struct | WasmFunction |
| struct | WasmSegment |
Functions | |
| static llvm::Expected< uint32_t > | GetULEB32 (DataExtractor &data, lldb::offset_t &offset) |
| Helper to read a 32-bit ULEB using LLDB's DataExtractor. | |
| static llvm::Expected< uint32_t > | GetULEB32 (llvm::DataExtractor &data, llvm::DataExtractor::Cursor &c) |
| Helper to read a 32-bit ULEB using LLVM's DataExtractor. | |
| static llvm::Expected< std::string > | GetWasmString (llvm::DataExtractor &data, llvm::DataExtractor::Cursor &c) |
| Helper to read a Wasm string, whcih is encoded as a vector of UTF-8 codes. | |
| static lldb::offset_t | GetWasmOffsetFromInitExpr (DataExtractor &data, lldb::offset_t &offset) |
| An "init expr" refers to a constant expression used to determine the initial value of certain elements within a module during instantiation. | |
| static bool | ValidateModuleHeader (const DataBufferSP &data_sp) |
| Checks whether the data buffer starts with a valid Wasm module header. | |
| static llvm::Expected< uint32_t > | ParseImports (DataExtractor &import_data) |
| static llvm::Expected< std::vector< WasmFunction > > | ParseFunctions (DataExtractor &data) |
| static llvm::Expected< std::vector< WasmSegment > > | ParseData (DataExtractor &data) |
| static llvm::Expected< std::vector< Symbol > > | ParseNames (SectionSP code_section_sp, DataExtractor &name_data, const std::vector< WasmFunction > &functions, std::vector< WasmSegment > &segments, uint32_t num_imported_functions) |
| static SectionType | GetSectionTypeFromName (llvm::StringRef Name) |
Variables | |
| static const uint32_t | kWasmHeaderSize |
Function Documentation
◆ GetSectionTypeFromName()
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static |
Definition at line 547 of file ObjectFileWasm.cpp.
References lldb::eSectionTypeOther, lldb::eSectionTypeWasmName, and lldb_private::ObjectFile::GetDWARFSectionTypeFromName().
◆ GetULEB32() [1/2]
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inlinestatic |
Helper to read a 32-bit ULEB using LLDB's DataExtractor.
Definition at line 40 of file ObjectFileWasm.cpp.
References GetULEB32().
Referenced by GetULEB32(), GetWasmString(), ParseData(), ParseFunctions(), ParseImports(), and ParseNames().
◆ GetULEB32() [2/2]
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inlinestatic |
Helper to read a 32-bit ULEB using LLVM's DataExtractor.
Definition at line 50 of file ObjectFileWasm.cpp.
◆ GetWasmOffsetFromInitExpr()
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static |
An "init expr" refers to a constant expression used to determine the initial value of certain elements within a module during instantiation.
These expressions are restricted to operations that can be evaluated at module instantiation time. Currently we only support simple constant opcodes.
Definition at line 78 of file ObjectFileWasm.cpp.
References lldb_private::DataExtractor::GetFloat(), lldb_private::DataExtractor::GetSLEB128(), lldb_private::DataExtractor::GetU8(), lldb_private::DataExtractor::GetULEB128(), and LLDB_INVALID_OFFSET.
Referenced by ParseData().
◆ GetWasmString()
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inlinestatic |
Helper to read a Wasm string, whcih is encoded as a vector of UTF-8 codes.
Definition at line 61 of file ObjectFileWasm.cpp.
References GetULEB32().
Referenced by lldb_private::wasm::ObjectFileWasm::DecodeNextSection(), lldb_private::wasm::ObjectFileWasm::GetExternalDebugInfoFileSpec(), ParseImports(), and ParseNames().
◆ ParseData()
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static |
Definition at line 397 of file ObjectFileWasm.cpp.
References WasmSegment::Active, GetULEB32(), GetWasmOffsetFromInitExpr(), WasmSegment::init_expr_offset, WasmSegment::memory_index, WasmSegment::Passive, WasmSegment::section_offset, WasmSegment::size, and WasmSegment::type.
Referenced by lldb_private::wasm::ObjectFileWasm::CreateSections().
◆ ParseFunctions()
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static |
Definition at line 352 of file ObjectFileWasm.cpp.
References GetULEB32().
Referenced by lldb_private::wasm::ObjectFileWasm::CreateSections().
◆ ParseImports()
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static |
Definition at line 316 of file ObjectFileWasm.cpp.
References lldb_private::DataExtractor::GetAsLLVM(), GetULEB32(), and GetWasmString().
Referenced by lldb_private::wasm::ObjectFileWasm::CreateSections().
◆ ParseNames()
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static |
Definition at line 452 of file ObjectFileWasm.cpp.
References lldb::eSymbolTypeCode, lldb_private::DataExtractor::GetAsLLVM(), GetULEB32(), GetWasmString(), WasmFunction::section_offset, and WasmFunction::size.
Referenced by lldb_private::wasm::ObjectFileWasm::CreateSections().
◆ ValidateModuleHeader()
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static |
Checks whether the data buffer starts with a valid Wasm module header.
Definition at line 116 of file ObjectFileWasm.cpp.
References kWasmHeaderSize.
Referenced by lldb_private::wasm::ObjectFileWasm::CreateInstance(), lldb_private::wasm::ObjectFileWasm::CreateMemoryInstance(), and lldb_private::wasm::ObjectFileWasm::GetModuleSpecifications().
Variable Documentation
◆ kWasmHeaderSize
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static |
Definition at line 36 of file ObjectFileWasm.cpp.
Referenced by lldb_private::wasm::ObjectFileWasm::DecodeSections(), and ValidateModuleHeader().
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