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unix: add OpenTree on linux

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This syscall is not yet described in linux man pages
(https://github.com/mkerrisk/man-pages.git)
but it was attempts to do it (https://lwn.net/Articles/829496/)
This syscall appeared in linux kernel v5.2

Change-Id: If44aa74c4ddd200831011c6c4bf4bd4fee440785
Reviewed-on: https://go-review.googlesource.com/c/sys/+/397094
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Alexey Perevalov
2022-04-03 02:05:50 +00:00
committed by Ian Lance Taylor
parent e17cdc4130
commit 483a9cbc67
4 changed files with 23 additions and 0 deletions
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unix/zsyscall_linux.go
+16
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@@ -1215,6 +1215,22 @@ func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func OpenTree(dfd int, fileName string, flags uint) (r int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(fileName)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN_TREE, uintptr(dfd), uintptr(unsafe.Pointer(_p0)), uintptr(flags))
r = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func PerfEventOpen(attr *PerfEventAttr, pid int, cpu int, groupFd int, flags int) (fd int, err error) {
r0, _, e1 := Syscall6(SYS_PERF_EVENT_OPEN, uintptr(unsafe.Pointer(attr)), uintptr(pid), uintptr(cpu), uintptr(groupFd), uintptr(flags), 0)
fd = int(r0)