github.com/geraldss/go/src@v0.0.0-20210511222824-ac7d0ebfc235/runtime/sys_openbsd.go (about)

     1  // Copyright 2020 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build openbsd,amd64 openbsd,arm64
     6  
     7  package runtime
     8  
     9  import "unsafe"
    10  
    11  // The *_trampoline functions convert from the Go calling convention to the C calling convention
    12  // and then call the underlying libc function. These are defined in sys_openbsd_$ARCH.s.
    13  
    14  //go:nosplit
    15  //go:cgo_unsafe_args
    16  func pthread_attr_init(attr *pthreadattr) int32 {
    17  	return libcCall(unsafe.Pointer(funcPC(pthread_attr_init_trampoline)), unsafe.Pointer(&attr))
    18  }
    19  func pthread_attr_init_trampoline()
    20  
    21  //go:nosplit
    22  //go:cgo_unsafe_args
    23  func pthread_attr_destroy(attr *pthreadattr) int32 {
    24  	return libcCall(unsafe.Pointer(funcPC(pthread_attr_destroy_trampoline)), unsafe.Pointer(&attr))
    25  }
    26  func pthread_attr_destroy_trampoline()
    27  
    28  //go:nosplit
    29  //go:cgo_unsafe_args
    30  func pthread_attr_getstacksize(attr *pthreadattr, size *uintptr) int32 {
    31  	return libcCall(unsafe.Pointer(funcPC(pthread_attr_getstacksize_trampoline)), unsafe.Pointer(&attr))
    32  }
    33  func pthread_attr_getstacksize_trampoline()
    34  
    35  //go:nosplit
    36  //go:cgo_unsafe_args
    37  func pthread_attr_setdetachstate(attr *pthreadattr, state int) int32 {
    38  	return libcCall(unsafe.Pointer(funcPC(pthread_attr_setdetachstate_trampoline)), unsafe.Pointer(&attr))
    39  }
    40  func pthread_attr_setdetachstate_trampoline()
    41  
    42  //go:nosplit
    43  //go:cgo_unsafe_args
    44  func pthread_create(attr *pthreadattr, start uintptr, arg unsafe.Pointer) int32 {
    45  	return libcCall(unsafe.Pointer(funcPC(pthread_create_trampoline)), unsafe.Pointer(&attr))
    46  }
    47  func pthread_create_trampoline()
    48  
    49  // Tell the linker that the libc_* functions are to be found
    50  // in a system library, with the libc_ prefix missing.
    51  
    52  //go:cgo_import_dynamic libc_pthread_attr_init pthread_attr_init "libpthread.so"
    53  //go:cgo_import_dynamic libc_pthread_attr_destroy pthread_attr_destroy "libpthread.so"
    54  //go:cgo_import_dynamic libc_pthread_attr_getstacksize pthread_attr_getstacksize "libpthread.so"
    55  //go:cgo_import_dynamic libc_pthread_attr_setdetachstate pthread_attr_setdetachstate "libpthread.so"
    56  //go:cgo_import_dynamic libc_pthread_create pthread_create "libpthread.so"
    57  //go:cgo_import_dynamic libc_pthread_sigmask pthread_sigmask "libpthread.so"
    58  
    59  //go:cgo_import_dynamic _ _ "libpthread.so"
    60  //go:cgo_import_dynamic _ _ "libc.so"