LLDB mainline
lldb_private::ArchitectureWasm Class Reference

#include <ArchitectureWasm.h>

Inheritance diagram for lldb_private::ArchitectureWasm:
[legend]

Public Member Functions

llvm::StringRef GetPluginName () override
void OverrideStopInfo (Thread &thread) const override
 This is currently intended to handle cases where a program stops at an instruction that won't get executed and it allows the stop reason, like "breakpoint hit", to be replaced with a different stop reason like "no stop reason".
Address SkipFunctionHeader (Address addr) const override
 A WebAssembly function begins with a local variable declaration header that is part of the function but is not an executable instruction.
Public Member Functions inherited from lldb_private::Architecture
virtual size_t GetBytesToSkip (Symbol &func, const Address &curr_addr) const
 This method is used to get the number of bytes that should be skipped, from function start address, to reach the first instruction after the prologue.
virtual void AdjustBreakpointAddress (const Symbol &func, Address &addr) const
 Adjust function breakpoint address, if needed.
virtual lldb::addr_t GetCallableLoadAddress (lldb::addr_t addr, AddressClass addr_class=AddressClass::eInvalid) const
 Get load_addr as a callable code load address for this target.
virtual lldb::addr_t GetOpcodeLoadAddress (lldb::addr_t addr, AddressClass addr_class=AddressClass::eInvalid) const
 Get load_addr as an opcode for this target.
virtual lldb::addr_t GetBreakableLoadAddress (lldb::addr_t addr, Target &target) const
virtual const MemoryTagManagerGetMemoryTagManager () const
virtual bool RegisterWriteCausesReconfigure (const llvm::StringRef name) const
virtual bool ReconfigureRegisterInfo (DynamicRegisterInfo &reg_info, DataExtractor &reg_data, RegisterContext &reg_context) const
virtual lldb::UnwindPlanSP GetArchitectureUnwindPlan (lldb_private::Thread &thread, lldb_private::RegisterContextUnwind *regctx, std::shared_ptr< const UnwindPlan > current_unwindplan)
 Return an UnwindPlan that allows architecture-defined rules for finding saved registers, given a particular set of register values.
virtual bool IsValidTrapInstruction (llvm::ArrayRef< uint8_t > reference, llvm::ArrayRef< uint8_t > observed) const
 Returns whether a given byte sequence is a valid trap instruction for the architecture.
Public Member Functions inherited from lldb_private::PluginInterface
 PluginInterface ()=default
virtual ~PluginInterface ()=default
 PluginInterface (const PluginInterface &)=delete
PluginInterfaceoperator= (const PluginInterface &)=delete

Static Public Member Functions

static llvm::StringRef GetPluginNameStatic ()
static void Initialize ()
static void Terminate ()

Private Member Functions

 ArchitectureWasm ()=default

Static Private Member Functions

static std::unique_ptr< ArchitectureCreate (const ArchSpec &arch)

Detailed Description

Definition at line 16 of file ArchitectureWasm.h.

Constructor & Destructor Documentation

◆ ArchitectureWasm()

lldb_private::ArchitectureWasm::ArchitectureWasm ( )
privatedefault

Referenced by Create(), and Initialize().

Member Function Documentation

◆ Create()

std::unique_ptr< Architecture > ArchitectureWasm::Create ( const ArchSpec & arch)
staticprivate

Definition at line 30 of file ArchitectureWasm.cpp.

References ArchitectureWasm(), and lldb_private::ArchSpec::GetMachine().

Referenced by Initialize(), and Terminate().

◆ GetPluginName()

llvm::StringRef lldb_private::ArchitectureWasm::GetPluginName ( )
inlineoverridevirtual

Implements lldb_private::PluginInterface.

Definition at line 22 of file ArchitectureWasm.h.

References GetPluginNameStatic().

◆ GetPluginNameStatic()

llvm::StringRef lldb_private::ArchitectureWasm::GetPluginNameStatic ( )
inlinestatic

Definition at line 18 of file ArchitectureWasm.h.

Referenced by GetPluginName(), and Initialize().

◆ Initialize()

void ArchitectureWasm::Initialize ( )
static

◆ OverrideStopInfo()

void lldb_private::ArchitectureWasm::OverrideStopInfo ( Thread & thread) const
inlineoverridevirtual

This is currently intended to handle cases where a program stops at an instruction that won't get executed and it allows the stop reason, like "breakpoint hit", to be replaced with a different stop reason like "no stop reason".

This is specifically used for ARM in Thumb code when we stop in an IT instruction (if/then/else) where the instruction won't get executed and therefore it wouldn't be correct to show the program stopped at the current PC. The code is generic and applies to all ARM CPUs.

Implements lldb_private::Architecture.

Definition at line 24 of file ArchitectureWasm.h.

◆ SkipFunctionHeader()

Address ArchitectureWasm::SkipFunctionHeader ( Address addr) const
overridevirtual

A WebAssembly function begins with a local variable declaration header that is part of the function but is not an executable instruction.

Skip it so the address lands on the first instruction.

Reimplemented from lldb_private::Architecture.

Definition at line 37 of file ArchitectureWasm.cpp.

References lldb_private::Address::CalculateSymbolContext(), lldb_private::Symbol::GetAddress(), lldb_private::Address::GetFileAddress(), lldb_private::Symbol::GetPrologueByteSize(), lldb_private::Address::Slide(), and lldb_private::SymbolContext::symbol.

◆ Terminate()

void ArchitectureWasm::Terminate ( )
static

The documentation for this class was generated from the following files: