File size: 2,046 Bytes
334514d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | // 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 (
"internal/runtime/sys"
"unsafe"
)
// Public address sanitizer API.
func ASanRead(addr unsafe.Pointer, len int) {
sp := sys.GetCallerSP()
pc := sys.GetCallerPC()
doasanread(addr, uintptr(len), sp, pc)
}
func ASanWrite(addr unsafe.Pointer, len int) {
sp := sys.GetCallerSP()
pc := sys.GetCallerPC()
doasanwrite(addr, uintptr(len), sp, pc)
}
// Private interface for the runtime.
const asanenabled = true
const asanenabledBit = 1
// 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
func asanread(addr unsafe.Pointer, sz uintptr) {
sp := sys.GetCallerSP()
pc := sys.GetCallerPC()
doasanread(addr, sz, sp, pc)
}
//go:linkname asanwrite
//go:nosplit
func asanwrite(addr unsafe.Pointer, sz uintptr) {
sp := sys.GetCallerSP()
pc := sys.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)
//go:noescape
func lsanregisterrootregion(addr unsafe.Pointer, n uintptr)
//go:noescape
func lsanunregisterrootregion(addr unsafe.Pointer, n uintptr)
func lsandoleakcheck()
// 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
//go:cgo_import_static __lsan_register_root_region_go
//go:cgo_import_static __lsan_unregister_root_region_go
//go:cgo_import_static __lsan_do_leak_check_go
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