github.com/x04/go/src@v0.0.0-20200202162449-3d481ceb3525/runtime/os2_plan9.go (about)

     1  // Copyright 2010 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  // Plan 9-specific system calls
     6  
     7  package runtime
     8  
     9  // open
    10  const (
    11  	_OREAD		= 0
    12  	_OWRITE		= 1
    13  	_ORDWR		= 2
    14  	_OEXEC		= 3
    15  	_OTRUNC		= 16
    16  	_OCEXEC		= 32
    17  	_ORCLOSE	= 64
    18  	_OEXCL		= 0x1000
    19  )
    20  
    21  // rfork
    22  const (
    23  	_RFNAMEG	= 1 << 0
    24  	_RFENVG		= 1 << 1
    25  	_RFFDG		= 1 << 2
    26  	_RFNOTEG	= 1 << 3
    27  	_RFPROC		= 1 << 4
    28  	_RFMEM		= 1 << 5
    29  	_RFNOWAIT	= 1 << 6
    30  	_RFCNAMEG	= 1 << 10
    31  	_RFCENVG	= 1 << 11
    32  	_RFCFDG		= 1 << 12
    33  	_RFREND		= 1 << 13
    34  	_RFNOMNT	= 1 << 14
    35  )
    36  
    37  // notify
    38  const (
    39  	_NCONT	= 0
    40  	_NDFLT	= 1
    41  )
    42  
    43  type uinptr _Plink
    44  
    45  type tos struct {
    46  	prof	struct {	// Per process profiling
    47  		pp	*_Plink	// known to be 0(ptr)
    48  		next	*_Plink	// known to be 4(ptr)
    49  		last	*_Plink
    50  		first	*_Plink
    51  		pid	uint32
    52  		what	uint32
    53  	}
    54  	cyclefreq	uint64	// cycle clock frequency if there is one, 0 otherwise
    55  	kcycles		int64	// cycles spent in kernel
    56  	pcycles		int64	// cycles spent in process (kernel + user)
    57  	pid		uint32	// might as well put the pid here
    58  	clock		uint32
    59  	// top of stack is here
    60  }
    61  
    62  const (
    63  	_NSIG	= 14	// number of signals in sigtable array
    64  	_ERRMAX	= 128	// max length of note string
    65  
    66  	// Notes in runtime·sigtab that are handled by runtime·sigpanic.
    67  	_SIGRFAULT	= 2
    68  	_SIGWFAULT	= 3
    69  	_SIGINTDIV	= 4
    70  	_SIGFLOAT	= 5
    71  	_SIGTRAP	= 6
    72  	_SIGPROF	= 0	// dummy value defined for badsignal
    73  	_SIGQUIT	= 0	// dummy value defined for sighandler
    74  )