stack

Documentation

Overview

Package stack provides runtime call stack manipulation functions.

Index

• func InitFrame(startFuncAddr, entryFuncAddr uint32) (frame []byte)
• type Frame
  • func Trace(stack []byte, textAddr uint64, textMap TextMap, funcSigs []wa.FuncType) (stacktrace []Frame, err error)
• type TextMap

Functions

func InitFrame

func InitFrame(startFuncAddr, entryFuncAddr uint32) (frame []byte)

Types

type Frame

type Frame struct {
	FuncIndex int
	RetOffset int      // Zero if information is not available.
	Locals    []uint64 // If function signatures are available.
}

func Trace

func Trace(stack []byte, textAddr uint64, textMap TextMap, funcSigs []wa.FuncType) (stacktrace []Frame, err error)

type TextMap

type TextMap interface {
	FindFunc(addr uint32) (index int, found bool)
	FindCall(retAddr uint32) (init bool, funcIndex, callIndex int, stackOffset int32, retOffset uint32)
}