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unix: augment support for zos/s390x

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This augments sys/unix support for zos/s390x by
adding a small number of syscalls:
Errno2
Err2ad
W_Getmntent_A (pure ascii version of W_Getmntent)
Select

It also makes Mount and Unmount more Linux-like.
A few necessary constants and types are added,
and some tests.

These changes do not affect other platforms in any way.

Fixes golang/go#45838

Change-Id: I5783784a79b6c80a47cca74f3352bc07ea4ca682
Reviewed-on: https://go-review.googlesource.com/c/sys/+/314950
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
This commit is contained in:
billofarrell
2021-05-02 18:08:10 +00:00
committed by Ian Lance Taylor
parent d19ff857e8
commit 71e4cd670f
7 changed files with 384 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/zsyscall_zos_s390x.go
+40 -2
View File
@@ -364,6 +364,22 @@ func Dup2(oldfd int, newfd int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Errno2() (er2 int) {
uer2, _, _ := syscall_syscall(SYS___ERRNO2, 0, 0, 0)
er2 = int(uer2)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Err2ad() (eadd *int) {
ueadd, _, _ := syscall_syscall(SYS___ERR2AD, 0, 0, 0)
eadd = (*int)(unsafe.Pointer(ueadd))
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Exit(code int) {
syscall_syscall(SYS_EXIT, uintptr(code), 0, 0)
return
@@ -531,7 +547,18 @@ func W_Getmntent(buff *byte, size int) (lastsys int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Mount(path string, filesystem string, fstype string, mtm uint32, parmlen int32, parm string) (err error) {
func W_Getmntent_A(buff *byte, size int) (lastsys int, err error) {
r0, _, e1 := syscall_syscall(SYS___W_GETMNTENT_A, uintptr(unsafe.Pointer(buff)), uintptr(size), 0)
lastsys = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount_LE(path string, filesystem string, fstype string, mtm uint32, parmlen int32, parm string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
@@ -561,7 +588,7 @@ func Mount(path string, filesystem string, fstype string, mtm uint32, parmlen in
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Unmount(filesystem string, mtm int) (err error) {
func unmount(filesystem string, mtm int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(filesystem)
if err != nil {
@@ -1215,3 +1242,14 @@ func utimes(path string, timeval *[2]Timeval) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Select(nmsgsfds int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (ret int, err error) {
r0, _, e1 := syscall_syscall6(SYS_SELECT, uintptr(nmsgsfds), uintptr(unsafe.Pointer(r)), uintptr(unsafe.Pointer(w)), uintptr(unsafe.Pointer(e)), uintptr(unsafe.Pointer(timeout)), 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}