func MSanRead(addr unsafe.Pointer, len int) {
	msanread(addr, uintptr(len))
}

func MSanWrite(addr unsafe.Pointer, len int) {
	msanwrite(addr, uintptr(len))
}

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

// If we are running on the system stack, the C program may have
// marked part of that stack as uninitialized. We don't instrument
// the runtime, but operations like a slice copy can call msanread

// 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") }

    boolean scanEnabled
    boolean scanDisabled

    def "conveys configuration"() {
        when:
        scanEnabled = true

        then:
        with(config()) {
            enabled
            !disabled
            unsupportedMessage == null
        }

        when:
        scanEnabled = true

        then:
        with(config()) {

}

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