os_linux_mips64x.go

     1  // Copyright 2015 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 linux && (mips64 || mips64le)
     6  
     7  package runtime
     8  
     9  import "internal/cpu"
    10  
    11  func archauxv(tag, val uintptr) {
    12  	switch tag {
    13  	case _AT_HWCAP:
    14  		cpu.HWCap = uint(val)
    15  	}
    16  }
    17  
    18  //go:nosplit
    19  func cputicks() int64 {
    20  	// nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
    21  	return nanotime()
    22  }
    23  
    24  const (
    25  	_SS_DISABLE  = 2
    26  	_NSIG        = 129
    27  	_SIG_BLOCK   = 1
    28  	_SIG_UNBLOCK = 2
    29  	_SIG_SETMASK = 3
    30  )
    31  
    32  type sigset [2]uint64
    33  
    34  var sigset_all = sigset{^uint64(0), ^uint64(0)}
    35  
    36  //go:nosplit
    37  //go:nowritebarrierrec
    38  func sigaddset(mask *sigset, i int) {
    39  	(*mask)[(i-1)/64] |= 1 << ((uint32(i) - 1) & 63)
    40  }
    41  
    42  func sigdelset(mask *sigset, i int) {
    43  	(*mask)[(i-1)/64] &^= 1 << ((uint32(i) - 1) & 63)
    44  }
    45  
    46  //go:nosplit
    47  func sigfillset(mask *[2]uint64) {
    48  	(*mask)[0], (*mask)[1] = ^uint64(0), ^uint64(0)
    49  }
    50
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