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unix: add Major, Minor and Mkdev functions on Solaris

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Add Major, Minor and Mkdev functions for converting device numbers to
their major/minor components and vice versa.

Use the respective functions provided by the Solaris libc instead of
reimplementing them.

Test the conversion function with some well-known static device numbers
for devices which should be present on any Solaris system.

Re-generated files on OpenIndiana Hipster 2017.04 (SunOS 5.11) which
also added some previously missing error constants.

Change-Id: Ief9ea973d91c24956571eb8fafc8a4525b0f5b90
Reviewed-on: https://go-review.googlesource.com/64390
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2017-09-18 21:40:44 +00:00
committed by Ian Lance Taylor
parent b8ca6dd53d
commit 1f337fdb7f
5 changed files with 102 additions and 0 deletions
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unix/zsyscall_solaris_amd64.go
+27
View File
@@ -25,6 +25,9 @@ import (
//go:cgo_import_dynamic libc___xnet_recvmsg __xnet_recvmsg "libsocket.so"
//go:cgo_import_dynamic libc___xnet_sendmsg __xnet_sendmsg "libsocket.so"
//go:cgo_import_dynamic libc_acct acct "libc.so"
//go:cgo_import_dynamic libc___makedev __makedev "libc.so"
//go:cgo_import_dynamic libc___major __major "libc.so"
//go:cgo_import_dynamic libc___minor __minor "libc.so"
//go:cgo_import_dynamic libc_ioctl ioctl "libc.so"
//go:cgo_import_dynamic libc_access access "libc.so"
//go:cgo_import_dynamic libc_adjtime adjtime "libc.so"
@@ -146,6 +149,9 @@ import (
//go:linkname proc__xnet_recvmsg libc___xnet_recvmsg
//go:linkname proc__xnet_sendmsg libc___xnet_sendmsg
//go:linkname procacct libc_acct
//go:linkname proc__makedev libc___makedev
//go:linkname proc__major libc___major
//go:linkname proc__minor libc___minor
//go:linkname procioctl libc_ioctl
//go:linkname procAccess libc_access
//go:linkname procAdjtime libc_adjtime
@@ -268,6 +274,9 @@ var (
proc__xnet_recvmsg,
proc__xnet_sendmsg,
procacct,
proc__makedev,
proc__major,
proc__minor,
procioctl,
procAccess,
procAdjtime,
@@ -522,6 +531,24 @@ func acct(path *byte) (err error) {
return
}
func __makedev(version int, major uint, minor uint) (val uint64) {
r0, _, _ := sysvicall6(uintptr(unsafe.Pointer(&proc__makedev)), 3, uintptr(version), uintptr(major), uintptr(minor), 0, 0, 0)
val = uint64(r0)
return
}
func __major(version int, dev uint64) (val uint) {
r0, _, _ := sysvicall6(uintptr(unsafe.Pointer(&proc__major)), 2, uintptr(version), uintptr(dev), 0, 0, 0, 0)
val = uint(r0)
return
}
func __minor(version int, dev uint64) (val uint) {
r0, _, _ := sysvicall6(uintptr(unsafe.Pointer(&proc__minor)), 2, uintptr(version), uintptr(dev), 0, 0, 0, 0)
val = uint(r0)
return
}
func ioctl(fd int, req uint, arg uintptr) (err error) {
_, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procioctl)), 3, uintptr(fd), uintptr(req), uintptr(arg), 0, 0, 0)
if e1 != 0 {