core

type RawAllocSample struct {
	Addr uint64           // address of object
	Prof *RawMemProfEntry // record of allocation site
}

type RawDefer struct {
	Addr     uint64 // address of the defer record
	GAddr    uint64 // address of the containing goroutine's descriptor
	ArgP     uint64 // stack pointer giving the args for defer (TODO: is this right?)
	PC       uint64 // PC of the defer instruction
	FnAddr   uint64 // function to be run (a FuncVal*)
	FnPC     uint64 // PC of the defered function's entry point
	LinkAddr uint64 // address of the next defer record in this chain
}

type RawDump struct {
	Params   *RawParams
	MemStats *runtime.MemStats

	HeapObjects    []RawSegment // heap objects sorted by Addr, low-to-high
	GlobalSegments []RawSegment // data, bss, and noptrbss segments

	OSThreads   []*RawOSThread
	Goroutines  []*RawGoroutine
	StackFrames []*RawStackFrame
	OtherRoots  []*RawOtherRoot
	Finalizers  []*RawFinalizer
	Defers      []*RawDefer
	Panics      []*RawPanic

	TypeFromItab map[uint64]uint64   // map from itab address to the type address that itab represents
	TypeFromAddr map[uint64]*RawType // map from RawType.Addr to RawType

	MemProfMap   map[uint64]*RawMemProfEntry
	AllocSamples []*RawAllocSample
	// contains filtered or unexported fields
}

type RawFinalizer struct {
	IsQueued      bool   // if true, the object is unreachable and the finalizer is ready to run
	ObjAddr       uint64 // address of the object to finalize
	ObjTypeAddr   uint64 // address of the descriptor for typeof(obj)
	FnAddr        uint64 // function to be run (a FuncVal*)
	FnArgTypeAddr uint64 // address of the descriptor for the type of the function argument
	FnPC          uint64 // PC of finalizer entry point
}

type RawGoroutine struct {
	GAddr        uint64 // address of the goroutine descriptor
	SP           uint64 // current stack pointer (lowest address in the currently running frame)
	GoID         uint64 // goroutine ID
	GoPC         uint64 // PC of the go statement that created this goroutine
	Status       uint64
	IsSystem     bool   // true if started by the system
	IsBackground bool   // always false in go1.7
	WaitSince    uint64 // time the goroutine started waiting, in nanoseconds since the Unix epoch
	WaitReason   string
	CtxtAddr     uint64 // address of the scheduling ctxt
	MAddr        uint64 // address of the OS thread descriptor (M)
	TopDeferAddr uint64 // address of the top defer record
	TopPanicAddr uint64 // address of the top panic record
}

type RawMemProfEntry struct {
	Size      uint64            // size of the allocated object
	NumAllocs uint64            // number of allocations
	NumFrees  uint64            // number of frees
	Stacks    []RawMemProfFrame // call stacks
}

type RawMemProfFrame struct {
	Func []byte // string left as []byte reference to save memory
	File []byte // string left as []byte reference to save memory
	Line uint64
}

type RawOSThread struct {
	MAddr  uint64 // address of the OS thread descriptor (M)
	GoID   uint64 // go's internal ID for the thread
	ProcID uint64 // kernel's ID for the thread
}

type RawOtherRoot struct {
	Description string
	Addr        uint64 // address pointed to by this root
}

type RawPanic struct {
	Addr        uint64 // address of the panic record
	GAddr       uint64 // address of the containing goroutine's descriptor
	ArgTypeAddr uint64 // type of the panic arg
	ArgAddr     uint64 // address of the panic arg
	DeferAddr   uint64 // address of the defer record that is currently running
	LinkAddr    uint64 // address of the next panic record in this chain
}

type RawParams struct {
	ByteOrder binary.ByteOrder // byte order of all memory in this dump
	PtrSize   uint64           // in bytes
	HeapStart uint64           // heap start address
	HeapEnd   uint64           // heap end address (this is the last byte in the heap + 1)

	GoArch       string // GOARCH of the runtime library that generated this dump
	GoExperiment string // GOEXPERIMENT of the toolchain that build the runtime library
	NCPU         uint64 // number of physical cpus available to the program
}

type RawPtrFields struct {
	// contains filtered or unexported fields
}

type RawSegment struct {
	Addr      uint64       // base address of the segment
	Data      []byte       // data for this segment
	PtrFields RawPtrFields // offsets of ptr fields within this segment
}

type RawStackFrame struct {
	Name     string
	Depth    uint64     // 0 = bottom of stack (currently running frame)
	CalleeSP uint64     // stack pointer of the child frame (or 0 for the bottom-most frame)
	EntryPC  uint64     // entry PC for the function
	PC       uint64     // current PC being executed
	NextPC   uint64     // for callers, where the function resumes (if anywhere) after the callee is done
	Segment  RawSegment // local vars (Segment.Addr is the stack pointer, i.e., lowest address in the frame)
}

type RawType struct {
	Addr uint64 // address of the type descriptor
	Size uint64 // in bytes
	Name string // not necessarily unique
	// If true, this type is equivalent to a single pointer, so ifaces can store
	// this type directly in the data field (without indirection).
	DirectIFace bool
}