golang asan 代码
文件路径：/src/runtime/asan.go
/ 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