// Copyright 2021 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build asan package runtime import ( "unsafe" ) // Public address sanitizer API. func ASanRead(addr unsafe.Pointer, len int) { sp := getcallersp() pc := getcallerpc() doasanread(addr, uintptr(len), sp, pc) } 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:nosplit func asanread(addr unsafe.Pointer, sz uintptr) { sp := getcallersp() pc := getcallerpc() doasanread(addr, sz, sp, pc) } //go:nosplit func asanwrite(addr unsafe.Pointer, sz uintptr) { sp := getcallersp() pc := getcallerpc() doasanwrite(addr, sz, sp, pc) } //go:noescape func doasanread(addr unsafe.Pointer, sz, sp, pc uintptr) //go:noescape func doasanwrite(addr unsafe.Pointer, sz, sp, pc uintptr) //go:noescape func asanunpoison(addr unsafe.Pointer, sz uintptr) //go:noescape func asanpoison(addr unsafe.Pointer, sz uintptr) //go:noescape func asanregisterglobals(addr unsafe.Pointer, n uintptr) // These are called from asan_GOARCH.s // //go:cgo_import_static __asan_read_go //go:cgo_import_static __asan_write_go //go:cgo_import_static __asan_unpoison_go //go:cgo_import_static __asan_poison_go //go:cgo_import_static __asan_register_globals_go