unix: provide Mount on openbsd

Note that Mount is already provided for both darwin and linux, with
differing signatures.

Change-Id: Iaddae1769e436aad5125b78e31b2d62d22e45b16
Reviewed-on: https://go-review.googlesource.com/c/sys/+/595735
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>

unix/syscall_openbsd.go

@@ -293,6 +293,7 @@ func Uname(uname *Utsname) error {
 //sys	Mkfifoat(dirfd int, path string, mode uint32) (err error)
 //sys	Mknod(path string, mode uint32, dev int) (err error)
 //sys	Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
+//sys	Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error)
 //sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
 //sys	Open(path string, mode int, perm uint32) (fd int, err error)
 //sys	Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)

unix/zsyscall_openbsd_386.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_386.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $4
 DATA	·libc_mknodat_trampoline_addr(SB)/4, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $4
+DATA	·libc_mount_trampoline_addr(SB)/4, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $4

unix/zsyscall_openbsd_amd64.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_amd64.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $8
 DATA	·libc_mknodat_trampoline_addr(SB)/8, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $8
+DATA	·libc_mount_trampoline_addr(SB)/8, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $8

unix/zsyscall_openbsd_arm.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_arm.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $4
 DATA	·libc_mknodat_trampoline_addr(SB)/4, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $4
+DATA	·libc_mount_trampoline_addr(SB)/4, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $4

unix/zsyscall_openbsd_arm64.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_arm64.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $8
 DATA	·libc_mknodat_trampoline_addr(SB)/8, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $8
+DATA	·libc_mount_trampoline_addr(SB)/8, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $8

unix/zsyscall_openbsd_mips64.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_mips64.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $8
 DATA	·libc_mknodat_trampoline_addr(SB)/8, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $8
+DATA	·libc_mount_trampoline_addr(SB)/8, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $8

unix/zsyscall_openbsd_ppc64.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_ppc64.s

@@ -555,6 +555,12 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $8
 DATA	·libc_mknodat_trampoline_addr(SB)/8, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	CALL	libc_mount(SB)
+	RET
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $8
+DATA	·libc_mount_trampoline_addr(SB)/8, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	CALL	libc_nanosleep(SB)
 	RET

unix/zsyscall_openbsd_riscv64.go

@@ -1493,6 +1493,30 @@ var libc_mknodat_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(fsType)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(dir)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall_syscall6(libc_mount_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flags), uintptr(data), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_mount_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_mount mount "libc.so"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
 	_, _, e1 := syscall_syscall(libc_nanosleep_trampoline_addr, uintptr(unsafe.Pointer(time)), uintptr(unsafe.Pointer(leftover)), 0)
 	if e1 != 0 {

unix/zsyscall_openbsd_riscv64.s

@@ -463,6 +463,11 @@ TEXT libc_mknodat_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_mknodat_trampoline_addr(SB), RODATA, $8
 DATA	·libc_mknodat_trampoline_addr(SB)/8, $libc_mknodat_trampoline<>(SB)
 
+TEXT libc_mount_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_mount(SB)
+GLOBL	·libc_mount_trampoline_addr(SB), RODATA, $8
+DATA	·libc_mount_trampoline_addr(SB)/8, $libc_mount_trampoline<>(SB)
+
 TEXT libc_nanosleep_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_nanosleep(SB)
 GLOBL	·libc_nanosleep_trampoline_addr(SB), RODATA, $8