github.com/rafaeltorres324/go/src@v0.0.0-20210519164414-9fdf653a9838/runtime/sys_openbsd3.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 X versions of syscall expect the libc call to return a 64-bit result.
    12  // Otherwise (the non-X version) expects a 32-bit result.
    13  // This distinction is required because an error is indicated by returning -1,
    14  // and we need to know whether to check 32 or 64 bits of the result.
    15  // (Some libc functions that return 32 bits put junk in the upper 32 bits of AX.)
    16  
    17  //go:linkname syscall_syscall syscall.syscall
    18  //go:nosplit
    19  //go:cgo_unsafe_args
    20  func syscall_syscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    21  	entersyscall()
    22  	libcCall(unsafe.Pointer(funcPC(syscall)), unsafe.Pointer(&fn))
    23  	exitsyscall()
    24  	return
    25  }
    26  func syscall()
    27  
    28  //go:linkname syscall_syscallX syscall.syscallX
    29  //go:nosplit
    30  //go:cgo_unsafe_args
    31  func syscall_syscallX(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    32  	entersyscall()
    33  	libcCall(unsafe.Pointer(funcPC(syscallX)), unsafe.Pointer(&fn))
    34  	exitsyscall()
    35  	return
    36  }
    37  func syscallX()
    38  
    39  //go:linkname syscall_syscall6 syscall.syscall6
    40  //go:nosplit
    41  //go:cgo_unsafe_args
    42  func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    43  	entersyscall()
    44  	libcCall(unsafe.Pointer(funcPC(syscall6)), unsafe.Pointer(&fn))
    45  	exitsyscall()
    46  	return
    47  }
    48  func syscall6()
    49  
    50  //go:linkname syscall_syscall6X syscall.syscall6X
    51  //go:nosplit
    52  //go:cgo_unsafe_args
    53  func syscall_syscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    54  	entersyscall()
    55  	libcCall(unsafe.Pointer(funcPC(syscall6X)), unsafe.Pointer(&fn))
    56  	exitsyscall()
    57  	return
    58  }
    59  func syscall6X()
    60  
    61  //go:linkname syscall_syscall10 syscall.syscall10
    62  //go:nosplit
    63  //go:cgo_unsafe_args
    64  func syscall_syscall10(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
    65  	entersyscall()
    66  	libcCall(unsafe.Pointer(funcPC(syscall10)), unsafe.Pointer(&fn))
    67  	exitsyscall()
    68  	return
    69  }
    70  func syscall10()
    71  
    72  //go:linkname syscall_syscall10X syscall.syscall10X
    73  //go:nosplit
    74  //go:cgo_unsafe_args
    75  func syscall_syscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
    76  	entersyscall()
    77  	libcCall(unsafe.Pointer(funcPC(syscall10X)), unsafe.Pointer(&fn))
    78  	exitsyscall()
    79  	return
    80  }
    81  func syscall10X()
    82  
    83  //go:linkname syscall_rawSyscall syscall.rawSyscall
    84  //go:nosplit
    85  //go:cgo_unsafe_args
    86  func syscall_rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    87  	libcCall(unsafe.Pointer(funcPC(syscall)), unsafe.Pointer(&fn))
    88  	return
    89  }
    90  
    91  //go:linkname syscall_rawSyscall6 syscall.rawSyscall6
    92  //go:nosplit
    93  //go:cgo_unsafe_args
    94  func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    95  	libcCall(unsafe.Pointer(funcPC(syscall6)), unsafe.Pointer(&fn))
    96  	return
    97  }
    98  
    99  //go:linkname syscall_rawSyscall6X syscall.rawSyscall6X
   100  //go:nosplit
   101  //go:cgo_unsafe_args
   102  func syscall_rawSyscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
   103  	libcCall(unsafe.Pointer(funcPC(syscall6X)), unsafe.Pointer(&fn))
   104  	return
   105  }
   106  
   107  //go:linkname syscall_rawSyscall10X syscall.rawSyscall10X
   108  //go:nosplit
   109  //go:cgo_unsafe_args
   110  func syscall_rawSyscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
   111  	libcCall(unsafe.Pointer(funcPC(syscall10X)), unsafe.Pointer(&fn))
   112  	return
   113  }