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Source file src/runtime/os_solaris.go

Documentation: runtime

  // 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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