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unix: use fcntl(2) libc stub on OpenBSD

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Future OpenBSD releases will remove the syscall(2) interface.
This converts the Fcntl functions to use fcntl(2) from libc,
rather than indirectly through syscall(2).

Updates golang/go#63900.

Change-Id: I50c3b91cb40245653c772e65b0b15c625974bebe
GitHub-Last-Rev: 9c62104c43c63885d0cb4b198eb8c029bc644fa6
GitHub-Pull-Request: golang/sys#179
Reviewed-on: https://go-review.googlesource.com/c/sys/+/538995
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
This commit is contained in:
Josh Rickmar
2023-11-06 12:49:47 +00:00
committed by Joel Sing
parent cb378ae1ff
commit ec230dae7f
16 changed files with 233 additions and 1 deletions
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unix/zsyscall_openbsd_riscv64.go
+26
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@@ -584,6 +584,32 @@ var libc_sysctl_trampoline_addr uintptr
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fcntl(fd int, cmd int, arg int) (n int, err error) {
r0, _, e1 := syscall_syscall(libc_fcntl_trampoline_addr, uintptr(fd), uintptr(cmd), uintptr(arg))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
var libc_fcntl_trampoline_addr uintptr
//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fcntlPtr(fd int, cmd int, arg unsafe.Pointer) (n int, err error) {
r0, _, e1 := syscall_syscall(libc_fcntl_trampoline_addr, uintptr(fd), uintptr(cmd), uintptr(arg))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {
r0, _, e1 := syscall_syscall6(libc_ppoll_trampoline_addr, uintptr(unsafe.Pointer(fds)), uintptr(nfds), uintptr(unsafe.Pointer(timeout)), uintptr(unsafe.Pointer(sigmask)), 0, 0)
n = int(r0)