diff --git a/src/cmd/link/internal/ld/msync_darwin_libc.go b/src/cmd/link/internal/ld/msync_darwin_libc.go
new file mode 100644
index 0000000000..eb2a526835
--- /dev/null
+++ b/src/cmd/link/internal/ld/msync_darwin_libc.go
@@ -0,0 +1,12 @@
+// Copyright 2022 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 darwin && go1.20
+
+package ld
+
+import _ "unsafe" // for go:linkname
+
+//go:linkname msync syscall.msync
+func msync(b []byte, flags int) (err error)
diff --git a/src/cmd/link/internal/ld/msync_darwin_syscall.go b/src/cmd/link/internal/ld/msync_darwin_syscall.go
new file mode 100644
index 0000000000..270d9f3383
--- /dev/null
+++ b/src/cmd/link/internal/ld/msync_darwin_syscall.go
@@ -0,0 +1,24 @@
+// Copyright 2022 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 darwin && !go1.20
+
+package ld
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func msync(b []byte, flags int) (err error) {
+	var p unsafe.Pointer
+	if len(b) > 0 {
+		p = unsafe.Pointer(&b[0])
+	}
+	_, _, errno := syscall.Syscall(syscall.SYS_MSYNC, uintptr(p), uintptr(len(b)), uintptr(flags))
+	if errno != 0 {
+		return errno
+	}
+	return nil
+}
diff --git a/src/cmd/link/internal/ld/outbuf_darwin.go b/src/cmd/link/internal/ld/outbuf_darwin.go
index c0d994ea61..17f7e2a65f 100644
--- a/src/cmd/link/internal/ld/outbuf_darwin.go
+++ b/src/cmd/link/internal/ld/outbuf_darwin.go
@@ -43,6 +43,6 @@ func (out *OutBuf) purgeSignatureCache() {
 	// When we mmap the output buffer, it doesn't have a code signature
 	// (as we haven't generated one). Invalidate the kernel cache now that
 	// we have generated the signature. See issue #42684.
-	syscall.Syscall(syscall.SYS_MSYNC, uintptr(unsafe.Pointer(&out.buf[0])), uintptr(len(out.buf)), syscall.MS_INVALIDATE)
+	msync(out.buf, syscall.MS_INVALIDATE)
 	// Best effort. Ignore error.
 }
diff --git a/src/syscall/syscall_darwin.go b/src/syscall/syscall_darwin.go
index 663ac4e94c..cf9b0e9809 100644
--- a/src/syscall/syscall_darwin.go
+++ b/src/syscall/syscall_darwin.go
@@ -171,6 +171,7 @@ func Kill(pid int, signum Signal) (err error) { return kill(pid, int(signum), 1)
 //sys	Mlock(b []byte) (err error)
 //sys	Mlockall(flags int) (err error)
 //sys	Mprotect(b []byte, prot int) (err error)
+//sys	msync(b []byte, flags int) (err error)
 //sys	Munlock(b []byte) (err error)
 //sys	Munlockall() (err error)
 //sys	Open(path string, mode int, perm uint32) (fd int, err error)
diff --git a/src/syscall/zsyscall_darwin_amd64.go b/src/syscall/zsyscall_darwin_amd64.go
index ee78a572fc..6b3fff3f37 100644
--- a/src/syscall/zsyscall_darwin_amd64.go
+++ b/src/syscall/zsyscall_darwin_amd64.go
@@ -1063,6 +1063,26 @@ func libc_mprotect_trampoline()
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func msync(b []byte, flags int) (err error) {
+	var _p0 unsafe.Pointer
+	if len(b) > 0 {
+		_p0 = unsafe.Pointer(&b[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	_, _, e1 := syscall(abi.FuncPCABI0(libc_msync_trampoline), uintptr(_p0), uintptr(len(b)), uintptr(flags))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func libc_msync_trampoline()
+
+//go:cgo_import_dynamic libc_msync msync "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Munlock(b []byte) (err error) {
 	var _p0 unsafe.Pointer
 	if len(b) > 0 {
diff --git a/src/syscall/zsyscall_darwin_amd64.s b/src/syscall/zsyscall_darwin_amd64.s
index 563083d441..90e51fb9a4 100644
--- a/src/syscall/zsyscall_darwin_amd64.s
+++ b/src/syscall/zsyscall_darwin_amd64.s
@@ -143,6 +143,8 @@ TEXT ·libc_mlockall_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_mlockall(SB)
 TEXT ·libc_mprotect_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_mprotect(SB)
+TEXT ·libc_msync_trampoline(SB),NOSPLIT,$0-0
+	JMP	libc_msync(SB)
 TEXT ·libc_munlock_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_munlock(SB)
 TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0
diff --git a/src/syscall/zsyscall_darwin_arm64.go b/src/syscall/zsyscall_darwin_arm64.go
index ac1eccf755..61601449a0 100644
--- a/src/syscall/zsyscall_darwin_arm64.go
+++ b/src/syscall/zsyscall_darwin_arm64.go
@@ -1063,6 +1063,26 @@ func libc_mprotect_trampoline()
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func msync(b []byte, flags int) (err error) {
+	var _p0 unsafe.Pointer
+	if len(b) > 0 {
+		_p0 = unsafe.Pointer(&b[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	_, _, e1 := syscall(abi.FuncPCABI0(libc_msync_trampoline), uintptr(_p0), uintptr(len(b)), uintptr(flags))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func libc_msync_trampoline()
+
+//go:cgo_import_dynamic libc_msync msync "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Munlock(b []byte) (err error) {
 	var _p0 unsafe.Pointer
 	if len(b) > 0 {
diff --git a/src/syscall/zsyscall_darwin_arm64.s b/src/syscall/zsyscall_darwin_arm64.s
index 0567a42fa3..f00747939e 100644
--- a/src/syscall/zsyscall_darwin_arm64.s
+++ b/src/syscall/zsyscall_darwin_arm64.s
@@ -143,6 +143,8 @@ TEXT ·libc_mlockall_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_mlockall(SB)
 TEXT ·libc_mprotect_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_mprotect(SB)
+TEXT ·libc_msync_trampoline(SB),NOSPLIT,$0-0
+	JMP	libc_msync(SB)
 TEXT ·libc_munlock_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_munlock(SB)
 TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0