mirror of
https://github.com/golang/go
synced 2024-11-20 08:04:42 -07:00
e088e16256
Memory management was consolitated with the BSD ports, since
it was almost identical.
Assembly thunks are gone, being replaced by the new //go:linkname
feature.
This change supersedes CL 138390043 (runtime: convert solaris
netpoll to Go), which was previously reviewed and tested.
This change is only the first step, the port now builds,
but doesn't run. Binaries fail to exec:
ld.so.1: 6.out: fatal: 6.out: TLS requirement failure : TLS support is unavailable
Killed
This seems to happen because binaries don't link with libc.so
anymore. We will have to solve that in a different CL.
Also this change is just a rough translation of the original
C code, cleanup will come in a different CL.
[This CL is part of the removal of C code from package runtime.
See golang.org/s/dev.cc for an overview.]
LGTM=rsc
R=rsc, dave
CC=golang-codereviews, iant, khr, minux, r, rlh
https://golang.org/cl/174960043
83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import "unsafe"
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type libcFunc uintptr
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var asmsysvicall6 libcFunc
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//go:nosplit
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func sysvicall0(fn libcFunc) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 0
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libcall.args = uintptr(fn) // it's unused but must be non-nil, otherwise crashes
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall1(fn libcFunc, a1 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 1
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// TODO(rsc): Why is noescape necessary here and below?
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall2(fn libcFunc, a1, a2 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 2
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall3(fn libcFunc, a1, a2, a3 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 3
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall4(fn libcFunc, a1, a2, a3, a4 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 4
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall5(fn libcFunc, a1, a2, a3, a4, a5 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 5
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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//go:nosplit
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func sysvicall6(fn libcFunc, a1, a2, a3, a4, a5, a6 uintptr) uintptr {
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libcall := &getg().m.libcall
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libcall.fn = uintptr(fn)
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libcall.n = 6
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libcall.args = uintptr(noescape(unsafe.Pointer(&a1)))
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asmcgocall(unsafe.Pointer(&asmsysvicall6), unsafe.Pointer(libcall))
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return libcall.r1
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}
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