mirror of
https://github.com/golang/go
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67 lines
2.2 KiB
Go
67 lines
2.2 KiB
Go
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// Copyright 2018 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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// The *_trampoline functions convert from the Go calling convention to the C calling convention
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// and then call the underlying libc function. They are defined in sys_darwin_$ARCH.s.
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//go:nowritebarrier
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func pthread_attr_init(attr *pthreadattr) (errno int32) {
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systemstack(func() {
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errno = pthread_attr_init_trampoline(attr)
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})
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return
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}
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//go:noescape
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func pthread_attr_init_trampoline(attr *pthreadattr) int32
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//go:nowritebarrier
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func pthread_attr_setstack(attr *pthreadattr, addr unsafe.Pointer, size uintptr) (errno int32) {
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systemstack(func() {
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errno = pthread_attr_setstack_trampoline(attr, addr, size)
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})
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return
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}
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//go:noescape
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func pthread_attr_setstack_trampoline(attr *pthreadattr, addr unsafe.Pointer, size uintptr) int32
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//go:nowritebarrier
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func pthread_attr_setdetachstate(attr *pthreadattr, state int) (errno int32) {
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systemstack(func() {
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errno = pthread_attr_setdetachstate_trampoline(attr, state)
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})
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return
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}
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//go:noescape
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func pthread_attr_setdetachstate_trampoline(attr *pthreadattr, state int) int32
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//go:nowritebarrier
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func pthread_create(attr *pthreadattr, start uintptr, arg unsafe.Pointer) (t pthread, errno int32) {
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systemstack(func() {
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errno = pthread_create_trampoline(&t, attr, start, arg)
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})
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return
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}
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//go:noescape
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func pthread_create_trampoline(t *pthread, attr *pthreadattr, start uintptr, arg unsafe.Pointer) int32
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// Tell the linker that the libc_* functions are to be found
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// in a system library, with the libc_ prefix missing.
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//go:cgo_import_dynamic libc_pthread_attr_init pthread_attr_init "/usr/lib/libSystem.B.dylib"
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//go:cgo_import_dynamic libc_pthread_attr_setstack pthread_attr_setstack "/usr/lib/libSystem.B.dylib"
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//go:cgo_import_dynamic libc_pthread_attr_setdetachstate pthread_attr_setdetachstate "/usr/lib/libSystem.B.dylib"
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//go:cgo_import_dynamic libc_pthread_create pthread_create "/usr/lib/libSystem.B.dylib"
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// Magic incantation to get libSystem actually dynamically linked.
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// TODO: Why does the code require this? See cmd/compile/internal/ld/go.go:210
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//go:cgo_import_dynamic _ _ "/usr/lib/libSystem.B.dylib"
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