LLDB: lldb_private::wasm::UnwindWasm Class Reference

LLDB mainline

UnwindWasm manages stack unwinding for a WebAssembly process. More...

#include <UnwindWasm.h>

Inheritance diagram for lldb_private::wasm::UnwindWasm:

Public Member Functions
	UnwindWasm (lldb_private::Thread &thread)
	~UnwindWasm () override=default
Public Member Functions inherited from lldb_private::Unwind
virtual	~Unwind ()=default
void	Clear ()
uint32_t	GetFrameCount ()
uint32_t	GetFramesUpTo (uint32_t end_idx)
bool	GetFrameInfoAtIndex (uint32_t frame_idx, lldb::addr_t &cfa, lldb::addr_t &pc, bool &behaves_like_zeroth_frame)
lldb::RegisterContextSP	CreateRegisterContextForFrame (StackFrame *frame)
Thread &	GetThread ()

Protected Member Functions
void	DoClear () override
uint32_t	DoGetFrameCount () override
bool	DoGetFrameInfoAtIndex (uint32_t frame_idx, lldb::addr_t &cfa, lldb::addr_t &pc, bool &behaves_like_zeroth_frame) override
lldb::RegisterContextSP	DoCreateRegisterContextForFrame (lldb_private::StackFrame *frame) override
Protected Member Functions inherited from lldb_private::Unwind
	Unwind (Thread &thread)

Private Member Functions
	UnwindWasm (const UnwindWasm &)
const UnwindWasm &	operator= (const UnwindWasm &)=delete

Private Attributes
std::vector< lldb::addr_t >	m_frames
bool	m_unwind_complete = false

Additional Inherited Members
Protected Attributes inherited from lldb_private::Unwind
Thread &	m_thread
std::recursive_mutex	m_unwind_mutex

Detailed Description

UnwindWasm manages stack unwinding for a WebAssembly process.

Definition at line 20 of file UnwindWasm.h.

Constructor & Destructor Documentation

◆ UnwindWasm() [1/2]

lldb_private::wasm::UnwindWasm::UnwindWasm ( lldb_private::Thread & thread )

inline

Definition at line 22 of file UnwindWasm.h.

References lldb_private::Unwind::Unwind().

Referenced by operator=(), and UnwindWasm().

◆ ~UnwindWasm()

lldb_private::wasm::UnwindWasm::~UnwindWasm ( )

overridedefault

◆ UnwindWasm() [2/2]

lldb_private::wasm::UnwindWasm::UnwindWasm ( const UnwindWasm & )

private

References UnwindWasm().

Member Function Documentation

◆ DoClear()

void lldb_private::wasm::UnwindWasm::DoClear ( )

inlineoverrideprotectedvirtual

Implements lldb_private::Unwind.

Definition at line 26 of file UnwindWasm.h.

References m_frames, and m_unwind_complete.

◆ DoCreateRegisterContextForFrame()

lldb::RegisterContextSP UnwindWasm::DoCreateRegisterContextForFrame ( lldb_private::StackFrame * frame )

overrideprotectedvirtual

Implements lldb_private::Unwind.

Definition at line 37 of file UnwindWasm.cpp.

References lldb_private::StackFrame::GetConcreteFrameIndex(), lldb_private::StackFrame::GetFrameIndex(), lldb_private::wasm::ProcessWasm::GetRegisterInfo(), lldb_private::StackFrame::GetThread(), and m_frames.

◆ DoGetFrameCount()

uint32_t UnwindWasm::DoGetFrameCount ( )

overrideprotectedvirtual

Implements lldb_private::Unwind.

Definition at line 51 of file UnwindWasm.cpp.

References lldb_private::GetLog(), lldb_private::Unwind::GetThread(), lldb_private::wasm::ThreadWasm::GetWasmCallStack(), LLDB_LOG_ERROR, m_frames, m_unwind_complete, and lldb_private::Unwind.

Referenced by DoGetFrameInfoAtIndex().

◆ DoGetFrameInfoAtIndex()

bool UnwindWasm::DoGetFrameInfoAtIndex	(	uint32_t	frame_idx,
		lldb::addr_t &	cfa,
		lldb::addr_t &	pc,
		bool &	behaves_like_zeroth_frame )

overrideprotectedvirtual

Implements lldb_private::Unwind.

Definition at line 72 of file UnwindWasm.cpp.

References DoGetFrameCount(), m_frames, and pc.

◆ operator=()

const UnwindWasm & lldb_private::wasm::UnwindWasm::operator= ( const UnwindWasm & )

privatedelete

References UnwindWasm().

Member Data Documentation

◆ m_frames

std::vector<lldb::addr_t> lldb_private::wasm::UnwindWasm::m_frames

private

Definition at line 41 of file UnwindWasm.h.

Referenced by DoClear(), DoCreateRegisterContextForFrame(), DoGetFrameCount(), and DoGetFrameInfoAtIndex().

◆ m_unwind_complete

bool lldb_private::wasm::UnwindWasm::m_unwind_complete = false

private

Definition at line 42 of file UnwindWasm.h.

Referenced by DoClear(), and DoGetFrameCount().

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