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go/src/runtime/os_netbsd.go

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cmd/cc, runtime: convert C compilers to use Go calling convention To date, the C compilers and Go compilers differed only in how values were returned from functions. This made it difficult to call Go from C or C from Go if return values were involved. It also made assembly called from Go and assembly called from C different. This CL changes the C compiler to use the Go conventions, passing results on the stack, after the arguments. [Exception: this does not apply to C ... functions, because you can't know where on the stack the arguments end.] By doing this, the CL makes it possible to rewrite C functions into Go one at a time, without worrying about which languages call that function or which languages it calls. This CL also updates all the assembly files in package runtime to use the new conventions. Argument references of the form 40(SP) have been rewritten to the form name+10(FP) instead, and there are now Go func prototypes for every assembly function called from C or Go. This means that 'go vet runtime' checks effectively every assembly function, and go vet's output was used to automate the bulk of the conversion. Some functions, like seek and nsec on Plan 9, needed to be rewritten. Many assembly routines called from C were reading arguments incorrectly, using MOVL instead of MOVQ or vice versa, especially on the less used systems like openbsd. These were found by go vet and have been corrected too. If we're lucky, this may reduce flakiness on those systems. Tested on: darwin/386 darwin/amd64 linux/arm linux/386 linux/amd64 If this breaks another system, the bug is almost certainly in the sys_$GOOS_$GOARCH.s file, since the rest of the CL is tested by the combination of the above systems. LGTM=dvyukov, iant R=golang-codereviews, 0intro, dave, alex.brainman, dvyukov, iant CC=golang-codereviews, josharian, r https://golang.org/cl/135830043
2014-08-27 09:32:17 -06:00
// 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"
func setitimer(mode int32, new, old unsafe.Pointer)
func sigaction(sig int32, new, old unsafe.Pointer)
func sigaltstack(new, old unsafe.Pointer)
func sigprocmask(mode int32, new, old unsafe.Pointer)
func sysctl(mib *uint32, miblen uint32, out *byte, size *uintptr, dst *byte, ndst uintptr) int32
func lwp_tramp()
func raise(sig int32)
func getcontext(ctxt unsafe.Pointer)
func lwp_create(ctxt unsafe.Pointer, flags uintptr, lwpid unsafe.Pointer) int32
func lwp_park(abstime unsafe.Pointer, unpark int32, hint, unparkhint unsafe.Pointer) int32
func lwp_unpark(lwp int32, hint unsafe.Pointer) int32
func lwp_self() int32