// license that can be found in the LICENSE file.

//go:build !asan

// Dummy ASan support API, used when not built with -asan.

package runtime

import (
	"unsafe"
)

const asanenabled = false

// Because asanenabled is false, none of these functions should be called.

func asanread(addr unsafe.Pointer, sz uintptr)            { throw("asan") }
func asanwrite(addr unsafe.Pointer, sz uintptr)           { throw("asan") }

	// so we need the pointer parameters to be properly marked.
	//
	// Mark the input as having been written before the call
	// and the output as read after.
	if msanenabled && new != nil {
		msanwrite(unsafe.Pointer(new), unsafe.Sizeof(*new))
	}
	if asanenabled && new != nil {
		asanwrite(unsafe.Pointer(new), unsafe.Sizeof(*new))
	}
	if _cgo_sigaction == nil || inForkedChild {
		sysSigaction(sig, new, old)
	} else {

}

func ASanWrite(addr unsafe.Pointer, len int) {
	sp := getcallersp()
	pc := getcallerpc()
	doasanwrite(addr, uintptr(len), sp, pc)
}

// Private interface for the runtime.
const asanenabled = true

// asan{read,write} are nosplit because they may be called between
// fork and exec, when the stack must not grow. See issue #50391.

//go:linkname asanread
//go:nosplit

		} else if cas.elem != nil {
			raceWriteObjectPC(c.elemtype, cas.elem, casePC(casi), chanrecvpc)
		}
	}
	if msanenabled {
		if casi < nsends {
			msanread(cas.elem, c.elemtype.Size_)
		} else if cas.elem != nil {
			msanwrite(cas.elem, c.elemtype.Size_)
		}
	}
	if asanenabled {
		if casi < nsends {
			asanread(cas.elem, c.elemtype.Size_)
		} else if cas.elem != nil {

		}
	}

	if raceenabled {
		callerpc := getcallerpc()
		pc := abi.FuncPCABIInternal(makeslicecopy)
		racereadrangepc(from, copymem, callerpc, pc)
	}
	if msanenabled {
		msanread(from, copymem)
	}
	if asanenabled {
		asanread(from, copymem)
	}

	memmove(to, from, copymem)

	return to
}

// makeslice should be an internal detail,
// but widely used packages access it using linkname.

		return ""
	}
	if raceenabled {
		racereadrangepc(unsafe.Pointer(ptr),
			uintptr(n),
			getcallerpc(),
			abi.FuncPCABIInternal(slicebytetostring))
	}
	if msanenabled {
		msanread(unsafe.Pointer(ptr), uintptr(n))
	}
	if asanenabled {
		asanread(unsafe.Pointer(ptr), uintptr(n))
	}
	if n == 1 {
		p := unsafe.Pointer(&staticuint64s[*ptr])
		if goarch.BigEndian {
			p = add(p, 7)
		}

		raceReadObjectPC(typ, src, getcallerpc(), abi.FuncPCABIInternal(reflect_typedmemmove))
	}
	if msanenabled {
		msanwrite(dst, typ.Size_)
		msanread(src, typ.Size_)
	}
	if asanenabled {
		asanwrite(dst, typ.Size_)
		asanread(src, typ.Size_)
	}
	typedmemmove(typ, dst, src)
}

func convT(t *_type, v unsafe.Pointer) unsafe.Pointer {
	if raceenabled {
		raceReadObjectPC(t, v, getcallerpc(), abi.FuncPCABIInternal(convT))
	}
	if msanenabled {
		msanread(v, t.Size_)
	}
	if asanenabled {
		asanread(v, t.Size_)
	}
	x := mallocgc(t.Size_, t, true)
	typedmemmove(t, x, v)
	return x
}
func convTnoptr(t *_type, v unsafe.Pointer) unsafe.Pointer {

	}

	// Put the active chunk onto the reuse list.
	//
	// Note that active's reference is always the last reference in refs.
	s = a.active
	if s != nil {
		if raceenabled || msanenabled || asanenabled {
			// Don't reuse arenas with sanitizers enabled. We want to catch
			// any use-after-free errors aggressively.
			freeUserArenaChunk(s, a.refs[len(a.refs)-1])
		} else {
			lock(&userArenaState.lock)

		callerpc := getcallerpc()
		pc := abi.FuncPCABIInternal(mapaccess1)
		racereadpc(unsafe.Pointer(h), callerpc, pc)
		raceReadObjectPC(t.Key, key, callerpc, pc)
	}
	if msanenabled && h != nil {
		msanread(key, t.Key.Size_)
	}
	if asanenabled && h != nil {
		asanread(key, t.Key.Size_)
	}
	if h == nil || h.count == 0 {
		if err := mapKeyError(t, key); err != nil {
			panic(err) // see issue 23734
		}