object

package

v0.31.1 Latest Latest Go to latest Published: Jul 1, 2020 License: BSD-3-Clause Imports: 2 Imported by: 0

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Repository

github.com/tsavola/wag

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Documentation ¶

Overview ¶

Package object contains ObjectMapper implementations.

Index ¶

func FindCallSite(a []CallSite, retAddr uint32) (i int, found bool)
type CallMap
type CallSite
type FuncMap

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func FindCallSite ¶ added in v0.21.0

func FindCallSite(a []CallSite, retAddr uint32) (i int, found bool)

Types ¶

type CallMap ¶

type CallMap struct {
	FuncMap
	CallSites []CallSite
}

CallMap implements compile.ObjectMapper. It stores function addresses, and sites of function calls and suspension points. Other trap and instruction information is not stored.

Initial CallSites capacity may be allocated by initializing the field with a non-nil, empty array.

func (*CallMap) FindCall ¶ added in v0.29.0

func (m *CallMap) FindCall(retAddr uint32,
) (init bool, funcIndex, callIndex int, stackOffset int32, retOffset uint32)

func (*CallMap) InitObjectMap ¶

func (m *CallMap) InitObjectMap(numImportFuncs, numOtherFuncs int)

func (*CallMap) PutCallSite ¶

func (m *CallMap) PutCallSite(retAddr uint32, stackOffset int32)

type CallSite ¶

type CallSite struct {
	RetAddr     uint32 // The address immediately after the call instruction
	StackOffset int32  // Calling function's stack usage at time of call
}

CallSite represents an offset within the text section (machine code) where a function call is made.

The struct size or layout will not change between minor versions.

type FuncMap ¶

type FuncMap struct {
	FuncAddrs []uint32
}

FuncMap implements compile.ObjectMapper. It stores function addresses, but no call, trap or instruction information.

FuncAddrs may be preallocated by initializing the field with a non-nil, empty array.

func (*FuncMap) FindCall ¶ added in v0.29.0

func (m *FuncMap) FindCall(retAddr uint32,
) (init bool, funcIndex, callIndex int, stackOffset int32, retOffset uint32)

func (*FuncMap) FindFunc ¶ added in v0.29.0

func (m *FuncMap) FindFunc(addr uint32) (index int, found bool)

func (*FuncMap) InitObjectMap ¶

func (m *FuncMap) InitObjectMap(numImportFuncs, numOtherFuncs int)

func (*FuncMap) PutCallSite ¶

func (*FuncMap) PutCallSite(uint32, int32)

func (*FuncMap) PutFuncAddr ¶

func (m *FuncMap) PutFuncAddr(addr uint32)

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
abi
debug Package debug contains DebugObjectMapper implementations.	Package debug contains DebugObjectMapper implementations.
dump
stack Package stack provides runtime call stack manipulation functions.	Package stack provides runtime call stack manipulation functions.
stacktrace

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