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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package runtime
import "unsafe"
type mts struct {
tv_sec int64
tv_nsec int64
}
type mscratch struct {
v [6]uintptr
}
type mOS struct {
waitsema uintptr // semaphore for parking on locks
perrno *int32 // pointer to tls errno
// these are here because they are too large to be on the stack
// of low-level NOSPLIT functions.
//LibCall libcall;
ts mts
scratch mscratch
}
type libcFunc uintptr
var asmsysvicall6 libcFunc
//go:nosplit
func sysvicall0(fn *libcFunc) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 0
libcall.args = uintptr(unsafe.Pointer(fn)) // it's unused but must be non-nil, otherwise crashes
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall1(fn *libcFunc, a1 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 1
// TODO(rsc): Why is noescape necessary here and below?
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall2(fn *libcFunc, a1, a2 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 2
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall3(fn *libcFunc, a1, a2, a3 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 3
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall4(fn *libcFunc, a1, a2, a3, a4 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 4
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall5(fn *libcFunc, a1, a2, a3, a4, a5 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 5
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
//go:nosplit
func sysvicall6(fn *libcFunc, a1, a2, a3, a4, a5, a6 uintptr) uintptr {
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 6
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(&libcall))
return libcall.r1
}
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