An indirect call site. More...

#include <Function.h>

Inheritance diagram for lldb_private::IndirectCallEdge:

Public Member Functions
Call site related structures
	IndirectCallEdge (DWARFExpressionList call_target, AddrType caller_address_type, lldb::addr_t caller_address, bool is_tail_call, CallSiteParameterArray &&parameters)
	Construct a call edge using a DWARFExpression to identify the callee, and a return PC within the calling function to identify a specific call site.

Function *	GetCallee (ModuleList &images, ExecutionContext &exe_ctx) override
	Get the callee's definition.

Public Member Functions inherited from lldb_private::CallEdge
virtual Function *	GetCallee (ModuleList &images, ExecutionContext &exe_ctx)=0
	Get the callee's definition.

std::pair< AddrType, lldb::addr_t >	GetCallerAddress (Function &caller, Target &target) const
	Return an address in the caller.

bool	IsTailCall () const

llvm::ArrayRef< CallSiteParameter >	GetCallSiteParameters () const
	Get the call site parameters available at this call edge.

std::pair< bool, lldb::addr_t >	GetSortKey () const
	Non-tail-calls go first, sorted by the return address.

virtual	~CallEdge ()

lldb::addr_t	GetReturnPCAddress (Function &caller, Target &target) const
	Get the load PC address of the instruction which executes after the call returns.

Private Attributes
DWARFExpressionList	call_target

Additional Inherited Members
Public Types inherited from lldb_private::CallEdge
enum class	AddrType : uint8_t { Call , AfterCall }

Protected Member Functions inherited from lldb_private::CallEdge
lldb::addr_t	GetUnresolvedReturnPCAddress () const
	Like GetReturnPCAddress, but returns an unresolved file address.

	CallEdge (AddrType caller_address_type, lldb::addr_t caller_address, bool is_tail_call, CallSiteParameterArray &&parameters)

Static Protected Member Functions inherited from lldb_private::CallEdge
static lldb::addr_t	GetLoadAddress (lldb::addr_t unresolved_pc, Function &caller, Target &target)
	Helper that finds the load address of `unresolved_pc`, a file address which refers to an instruction within `caller`.

Detailed Description

An indirect call site.

Used to represent call sites where the address of the callee is not fixed, e.g. a call to a C++ virtual function (where the address is loaded out of a vtable), or a call to a function pointer in C.

Definition at line 362 of file Function.h.

Constructor & Destructor Documentation

◆ IndirectCallEdge()

IndirectCallEdge::IndirectCallEdge	(	DWARFExpressionList	call_target,
		AddrType	caller_address_type,
		lldb::addr_t	caller_address,
		bool	is_tail_call,
		CallSiteParameterArray &&	parameters
	)

Construct a call edge using a DWARFExpression to identify the callee, and a return PC within the calling function to identify a specific call site.

Definition at line 210 of file Function.cpp.

Member Function Documentation

◆ GetCallee()

Function * IndirectCallEdge::GetCallee	(	ModuleList &	images,
		ExecutionContext &	exe_ctx
	)

overridevirtual

Get the callee's definition.

Note that this might lazily invoke the DWARF parser. A register context from the caller's activation is needed to find indirect call targets.

Implements lldb_private::CallEdge.

Definition at line 219 of file Function.cpp.

References lldb_private::Address::CalculateSymbolContextFunction(), call_target, error(), lldb_private::DWARFExpressionList::Evaluate(), lldb_private::GetLog(), lldb_private::ExecutionContext::GetRegisterContext(), lldb_private::Value::GetScalar(), lldb_private::ExecutionContext::GetTargetPtr(), LLDB_INVALID_ADDRESS, LLDB_LOG, LLDB_LOGF, lldb_private::Target::ResolveLoadAddress(), lldb_private::Step, and lldb_private::Scalar::ULongLong().

Member Data Documentation

◆ call_target

DWARFExpressionList lldb_private::IndirectCallEdge::call_target

private

Definition at line 376 of file Function.h.

Referenced by GetCallee().

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

Public Member Functions

Private Attributes