From 953cdadca894cdc07be76fc99f95b40c28f06623 Mon Sep 17 00:00:00 2001 From: Brad Fitzpatrick Date: Thu, 18 Apr 2019 22:35:42 +0000 Subject: [PATCH] unix: add unexported name_to_handle_at and open_by_handle_at types & wrappers 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 TryBot-Result: Gobot Gobot Reviewed-by: Tobias Klauser --- unix/syscall_linux.go | 13 +++++++++++++ unix/zsyscall_linux_386.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_amd64.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_arm.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_arm64.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_mips.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_mips64.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_mips64le.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_mipsle.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_ppc64.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_ppc64le.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_riscv64.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_s390x.go | 26 ++++++++++++++++++++++++++ unix/zsyscall_linux_sparc64.go | 26 ++++++++++++++++++++++++++ 14 files changed, 351 insertions(+) diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go index 7e429ab2..558f07b5 100644 --- a/unix/syscall_linux.go +++ b/unix/syscall_linux.go @@ -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 */ diff --git a/unix/zsyscall_linux_386.go b/unix/zsyscall_linux_386.go index 9855afa7..feb3c039 100644 --- a/unix/zsyscall_linux_386.go +++ b/unix/zsyscall_linux_386.go @@ -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 { diff --git a/unix/zsyscall_linux_amd64.go b/unix/zsyscall_linux_amd64.go index 773e2511..fa0cb252 100644 --- a/unix/zsyscall_linux_amd64.go +++ b/unix/zsyscall_linux_amd64.go @@ -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 { diff --git a/unix/zsyscall_linux_arm.go b/unix/zsyscall_linux_arm.go index ccea621d..daec1d5d 100644 --- a/unix/zsyscall_linux_arm.go +++ b/unix/zsyscall_linux_arm.go @@ -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 { diff --git a/unix/zsyscall_linux_arm64.go b/unix/zsyscall_linux_arm64.go index 712c7a32..ad9820b5 100644 --- a/unix/zsyscall_linux_arm64.go +++ b/unix/zsyscall_linux_arm64.go @@ -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 { diff --git a/unix/zsyscall_linux_mips.go b/unix/zsyscall_linux_mips.go index 68b32510..c82ce7d2 100644 --- a/unix/zsyscall_linux_mips.go +++ b/unix/zsyscall_linux_mips.go @@ -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 { diff --git a/unix/zsyscall_linux_mips64.go b/unix/zsyscall_linux_mips64.go index a8be4076..d1b77c19 100644 --- a/unix/zsyscall_linux_mips64.go +++ b/unix/zsyscall_linux_mips64.go @@ -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 { diff --git a/unix/zsyscall_linux_mips64le.go b/unix/zsyscall_linux_mips64le.go index 1351028a..b8e45f98 100644 --- a/unix/zsyscall_linux_mips64le.go +++ b/unix/zsyscall_linux_mips64le.go @@ -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 { diff --git a/unix/zsyscall_linux_mipsle.go b/unix/zsyscall_linux_mipsle.go index 327b4f97..e26c748d 100644 --- a/unix/zsyscall_linux_mipsle.go +++ b/unix/zsyscall_linux_mipsle.go @@ -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 { diff --git a/unix/zsyscall_linux_ppc64.go b/unix/zsyscall_linux_ppc64.go index c145bd3c..0a958ca0 100644 --- a/unix/zsyscall_linux_ppc64.go +++ b/unix/zsyscall_linux_ppc64.go @@ -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 { diff --git a/unix/zsyscall_linux_ppc64le.go b/unix/zsyscall_linux_ppc64le.go index cd8179c7..658f361e 100644 --- a/unix/zsyscall_linux_ppc64le.go +++ b/unix/zsyscall_linux_ppc64le.go @@ -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 { diff --git a/unix/zsyscall_linux_riscv64.go b/unix/zsyscall_linux_riscv64.go index 2e90cf0f..daff3003 100644 --- a/unix/zsyscall_linux_riscv64.go +++ b/unix/zsyscall_linux_riscv64.go @@ -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 { diff --git a/unix/zsyscall_linux_s390x.go b/unix/zsyscall_linux_s390x.go index fe9c7e12..caf6ea86 100644 --- a/unix/zsyscall_linux_s390x.go +++ b/unix/zsyscall_linux_s390x.go @@ -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 { diff --git a/unix/zsyscall_linux_sparc64.go b/unix/zsyscall_linux_sparc64.go index d4a2100b..369a04b5 100644 --- a/unix/zsyscall_linux_sparc64.go +++ b/unix/zsyscall_linux_sparc64.go @@ -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 {