6 files changed, 74 insertions, 0 deletions
diff --git a/src/syscall/fs_wasip1.go b/src/syscall/fs_wasip1.go
index f19e8f3b3c..fc361ee898 100644
--- a/src/syscall/fs_wasip1.go
+++ b/src/syscall/fs_wasip1.go
@@ -288,12 +288,18 @@ func fd_fdstat_get(fd int32, buf unsafe.Pointer) Errno
 //go:noescape
 func fd_fdstat_set_flags(fd int32, flags fdflags) Errno
 
+// fd_fdstat_get_flags is accessed from internal/syscall/unix
+//go:linkname fd_fdstat_get_flags
+
 func fd_fdstat_get_flags(fd int) (uint32, error) {
 	var stat fdstat
 	errno := fd_fdstat_get(int32(fd), unsafe.Pointer(&stat))
 	return uint32(stat.fdflags), errnoErr(errno)
 }
 
+// fd_fdstat_get_type is accessed from net
+//go:linkname fd_fdstat_get_type
+
 func fd_fdstat_get_type(fd int) (uint8, error) {
 	var stat fdstat
 	errno := fd_fdstat_get(int32(fd), unsafe.Pointer(&stat))
diff --git a/src/syscall/linkname_bsd.go b/src/syscall/linkname_bsd.go
new file mode 100644
index 0000000000..65ef900241
--- /dev/null
+++ b/src/syscall/linkname_bsd.go
@@ -0,0 +1,15 @@
+// Copyright 2024 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 || dragonfly || freebsd || netbsd || openbsd
+
+package syscall
+
+import _ "unsafe"
+
+// used by internal/syscall/unix
+//go:linkname ioctlPtr
+
+// used by x/net/route
+//go:linkname sysctl
diff --git a/src/syscall/linkname_darwin.go b/src/syscall/linkname_darwin.go
new file mode 100644
index 0000000000..2ed83a4fad
--- /dev/null
+++ b/src/syscall/linkname_darwin.go
@@ -0,0 +1,23 @@
+// Copyright 2024 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.
+
+package syscall
+
+import _ "unsafe"
+
+// used by os
+//go:linkname closedir
+//go:linkname readdir_r
+
+// used by internal/poll
+//go:linkname fdopendir
+
+// used by internal/syscall/unix
+//go:linkname unlinkat
+//go:linkname openat
+//go:linkname fstatat
+
+// used by cmd/link
+//go:linkname msync
+//go:linkname fcntl
diff --git a/src/syscall/linkname_libc.go b/src/syscall/linkname_libc.go
new file mode 100644
index 0000000000..1e7b4880d6
--- /dev/null
+++ b/src/syscall/linkname_libc.go
@@ -0,0 +1,12 @@
+// Copyright 2024 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 aix || darwin || (openbsd && !mips64) || solaris
+
+package syscall
+
+import _ "unsafe"
+
+// used by internal/poll
+//go:linkname writev
diff --git a/src/syscall/linkname_openbsd.go b/src/syscall/linkname_openbsd.go
new file mode 100644
index 0000000000..5f5c517ab5
--- /dev/null
+++ b/src/syscall/linkname_openbsd.go
@@ -0,0 +1,15 @@
+// Copyright 2024 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 openbsd && !mips64
+
+package syscall
+
+import _ "unsafe"
+
+// used by internal/syscall/unix
+//go:linkname unlinkat
+//go:linkname openat
+//go:linkname fstatat
+//go:linkname getentropy
diff --git a/src/syscall/syscall_linux.go b/src/syscall/syscall_linux.go
index f35e78c26a..28727dc98a 100644
--- a/src/syscall/syscall_linux.go
+++ b/src/syscall/syscall_linux.go
@@ -1284,6 +1284,9 @@ func Munmap(b []byte) (err error) {
 //sys	Mlockall(flags int) (err error)
 //sys	Munlockall() (err error)
 
+// prlimit is accessed from x/sys/unix.
+//go:linkname prlimit
+
 // prlimit changes a resource limit. We use a single definition so that
 // we can tell StartProcess to not restore the original NOFILE limit.
 // This is unexported but can be called from x/sys/unix.