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unix: add unexported name_to_handle_at and open_by_handle_at types & wrappers

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No usable change for users in this CL; just auto-generated syscall
wrapper funcs & types.

The next CL will have hand-written code adding the nice Go API around
these unexported symbols. (as outlined in the comment at
https://golang.org/issue/30537#issuecomment-470284573)

Updates golang/go#30537

Change-Id: I5e34df517efcf509fff97f670425500cc6608d59
Reviewed-on: https://go-review.googlesource.com/c/sys/+/172584
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Brad Fitzpatrick
2019-04-18 22:35:42 +00:00
parent e8e3143a4f
commit 953cdadca8
14 changed files with 351 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
unix/syscall_linux.go
View File

@@ -1662,6 +1662,19 @@ func Faccessat(dirfd int, path string, mode uint32, flags int) (err error) {
return EACCES
}
//sys nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) = SYS_NAME_TO_HANDLE_AT
//sys openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) = SYS_OPEN_BY_HANDLE_AT
// fileHandle is the argument to nameToHandleAt and openByHandleAt. We
// originally tried to generate it via unix/linux/types.go with "type
// fileHandle C.struct_file_handle" but that generated empty structs
// for mips64 and mips64le. Instead, hard code it for now (it's the
// same everywhere else) until the mips64 generator issue is fixed.
type fileHandle struct {
Bytes uint32
Type int32
}
/*
* Unimplemented
*/

26
unix/zsyscall_linux_386.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]_C_int) (err error) {
_, _, e1 := RawSyscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if e1 != 0 {

26
unix/zsyscall_linux_amd64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_arm.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]_C_int) (err error) {
_, _, e1 := RawSyscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if e1 != 0 {

26
unix/zsyscall_linux_arm64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
var _p0 unsafe.Pointer
if len(events) > 0 {

26
unix/zsyscall_linux_mips.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_mips64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_mips64le.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_mipsle.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_ppc64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_ppc64le.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_riscv64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
var _p0 unsafe.Pointer
if len(events) > 0 {

26
unix/zsyscall_linux_s390x.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (err error) {
_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
if e1 != 0 {

26
unix/zsyscall_linux_sparc64.go
View File

@@ -1679,6 +1679,32 @@ func faccessat(dirfd int, path string, mode uint32) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func nameToHandleAt(dirFD int, pathname string, fh *fileHandle, mountID *_C_int, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_NAME_TO_HANDLE_AT, uintptr(dirFD), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(fh)), uintptr(unsafe.Pointer(mountID)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN_BY_HANDLE_AT, uintptr(mountFD), uintptr(unsafe.Pointer(fh)), uintptr(flags))
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
var _p0 unsafe.Pointer
if len(events) > 0 {