golang os_solaris 代码
文件路径：/src/runtime/os_solaris.go
/ 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
/go:linkname asmsysvicall6x runtime.asmsysvicall6
var asmsysvicall6x libcFunc / name to take addr of asmsysvicall6
func asmsysvicall6() / declared for vet; do NOT call
/go:nosplit
func sysvicall0(fn *libcFunc) uintptr {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil / See comment in sys_darwin.go:libcCall
}
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(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1
}
/go:nosplit
func sysvicall1(fn *libcFunc, a1 uintptr) uintptr {
r1, _ := sysvicall1Err(fn, a1)
return r1
}
/go:nosplit
/ sysvicall1Err returns both the system call result and the errno value.
/ This is used by sysvicall1 and pipe.
func sysvicall1Err(fn *libcFunc, a1 uintptr) (r1, err uintptr) {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
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(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1, libcall.err
}
/go:nosplit
func sysvicall2(fn *libcFunc, a1, a2 uintptr) uintptr {
r1, _ := sysvicall2Err(fn, a1, a2)
return r1
}
/go:nosplit
/go:cgo_unsafe_args
/ sysvicall2Err returns both the system call result and the errno value.
/ This is used by sysvicall2 and pipe2.
func sysvicall2Err(fn *libcFunc, a1, a2 uintptr) (uintptr, uintptr) {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 2
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1, libcall.err
}
/go:nosplit
func sysvicall3(fn *libcFunc, a1, a2, a3 uintptr) uintptr {
r1, _ := sysvicall3Err(fn, a1, a2, a3)
return r1
}
/go:nosplit
/go:cgo_unsafe_args
/ sysvicall3Err returns both the system call result and the errno value.
/ This is used by sysicall3 and write1.
func sysvicall3Err(fn *libcFunc, a1, a2, a3 uintptr) (r1, err uintptr) {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 3
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1, libcall.err
}
/go:nosplit
/go:cgo_unsafe_args
func sysvicall4(fn *libcFunc, a1, a2, a3, a4 uintptr) uintptr {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 4
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1
}
/go:nosplit
/go:cgo_unsafe_args
func sysvicall5(fn *libcFunc, a1, a2, a3, a4, a5 uintptr) uintptr {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 5
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1
}
/go:nosplit
/go:cgo_unsafe_args
func sysvicall6(fn *libcFunc, a1, a2, a3, a4, a5, a6 uintptr) uintptr {
/ Leave caller's PC/SP around for traceback.
gp := getg()
var mp *m
if gp != nil {
mp = gp.m
}
if mp != nil && mp.libcallsp == 0 {
mp.libcallg.set(gp)
mp.libcallpc = getcallerpc()
/ sp must be the last, because once async cpu profiler finds
/ all three values to be non-zero, it will use them
mp.libcallsp = getcallersp()
} else {
mp = nil
}
var libcall libcall
libcall.fn = uintptr(unsafe.Pointer(fn))
libcall.n = 6
libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&libcall))
if mp != nil {
mp.libcallsp = 0
}
return libcall.r1
}