sys_openbsd3.go

Documentation: runtime

     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  //go:build openbsd && !mips64
     6  
     7  package runtime
     8  
     9  import (
    10  	"internal/abi"
    11  	"unsafe"
    12  )
    13  
    14  // The X versions of syscall expect the libc call to return a 64-bit result.
    15  // Otherwise (the non-X version) expects a 32-bit result.
    16  // This distinction is required because an error is indicated by returning -1,
    17  // and we need to know whether to check 32 or 64 bits of the result.
    18  // (Some libc functions that return 32 bits put junk in the upper 32 bits of AX.)
    19  
    20  //go:linkname syscall_syscall syscall.syscall
    21  //go:nosplit
    22  //go:cgo_unsafe_args
    23  func syscall_syscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    24  	entersyscall()
    25  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall)), unsafe.Pointer(&fn))
    26  	exitsyscall()
    27  	return
    28  }
    29  func syscall()
    30  
    31  //go:linkname syscall_syscallX syscall.syscallX
    32  //go:nosplit
    33  //go:cgo_unsafe_args
    34  func syscall_syscallX(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    35  	entersyscall()
    36  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscallX)), unsafe.Pointer(&fn))
    37  	exitsyscall()
    38  	return
    39  }
    40  func syscallX()
    41  
    42  //go:linkname syscall_syscall6 syscall.syscall6
    43  //go:nosplit
    44  //go:cgo_unsafe_args
    45  func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    46  	entersyscall()
    47  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6)), unsafe.Pointer(&fn))
    48  	exitsyscall()
    49  	return
    50  }
    51  func syscall6()
    52  
    53  //go:linkname syscall_syscall6X syscall.syscall6X
    54  //go:nosplit
    55  //go:cgo_unsafe_args
    56  func syscall_syscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    57  	entersyscall()
    58  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6X)), unsafe.Pointer(&fn))
    59  	exitsyscall()
    60  	return
    61  }
    62  func syscall6X()
    63  
    64  //go:linkname syscall_syscall10 syscall.syscall10
    65  //go:nosplit
    66  //go:cgo_unsafe_args
    67  func syscall_syscall10(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
    68  	entersyscall()
    69  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall10)), unsafe.Pointer(&fn))
    70  	exitsyscall()
    71  	return
    72  }
    73  func syscall10()
    74  
    75  //go:linkname syscall_syscall10X syscall.syscall10X
    76  //go:nosplit
    77  //go:cgo_unsafe_args
    78  func syscall_syscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
    79  	entersyscall()
    80  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall10X)), unsafe.Pointer(&fn))
    81  	exitsyscall()
    82  	return
    83  }
    84  func syscall10X()
    85  
    86  //go:linkname syscall_rawSyscall syscall.rawSyscall
    87  //go:nosplit
    88  //go:cgo_unsafe_args
    89  func syscall_rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2, err uintptr) {
    90  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall)), unsafe.Pointer(&fn))
    91  	return
    92  }
    93  
    94  //go:linkname syscall_rawSyscall6 syscall.rawSyscall6
    95  //go:nosplit
    96  //go:cgo_unsafe_args
    97  func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
    98  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6)), unsafe.Pointer(&fn))
    99  	return
   100  }
   101  
   102  //go:linkname syscall_rawSyscall6X syscall.rawSyscall6X
   103  //go:nosplit
   104  //go:cgo_unsafe_args
   105  func syscall_rawSyscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
   106  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6X)), unsafe.Pointer(&fn))
   107  	return
   108  }
   109  
   110  //go:linkname syscall_rawSyscall10X syscall.rawSyscall10X
   111  //go:nosplit
   112  //go:cgo_unsafe_args
   113  func syscall_rawSyscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2, err uintptr) {
   114  	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall10X)), unsafe.Pointer(&fn))
   115  	return
   116  }
   117
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