|  | // Copyright 2010 The Go Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | // Plan 9-specific system calls | 
|  |  | 
|  | package runtime | 
|  |  | 
|  | // open | 
|  | const ( | 
|  | _OREAD   = 0 | 
|  | _OWRITE  = 1 | 
|  | _ORDWR   = 2 | 
|  | _OEXEC   = 3 | 
|  | _OTRUNC  = 16 | 
|  | _OCEXEC  = 32 | 
|  | _ORCLOSE = 64 | 
|  | _OEXCL   = 0x1000 | 
|  | ) | 
|  |  | 
|  | // rfork | 
|  | const ( | 
|  | _RFNAMEG  = 1 << 0 | 
|  | _RFENVG   = 1 << 1 | 
|  | _RFFDG    = 1 << 2 | 
|  | _RFNOTEG  = 1 << 3 | 
|  | _RFPROC   = 1 << 4 | 
|  | _RFMEM    = 1 << 5 | 
|  | _RFNOWAIT = 1 << 6 | 
|  | _RFCNAMEG = 1 << 10 | 
|  | _RFCENVG  = 1 << 11 | 
|  | _RFCFDG   = 1 << 12 | 
|  | _RFREND   = 1 << 13 | 
|  | _RFNOMNT  = 1 << 14 | 
|  | ) | 
|  |  | 
|  | // notify | 
|  | const ( | 
|  | _NCONT = 0 | 
|  | _NDFLT = 1 | 
|  | ) | 
|  |  | 
|  | type uinptr _Plink | 
|  |  | 
|  | type tos struct { | 
|  | prof struct { // Per process profiling | 
|  | pp    *_Plink // known to be 0(ptr) | 
|  | next  *_Plink // known to be 4(ptr) | 
|  | last  *_Plink | 
|  | first *_Plink | 
|  | pid   uint32 | 
|  | what  uint32 | 
|  | } | 
|  | cyclefreq uint64 // cycle clock frequency if there is one, 0 otherwise | 
|  | kcycles   int64  // cycles spent in kernel | 
|  | pcycles   int64  // cycles spent in process (kernel + user) | 
|  | pid       uint32 // might as well put the pid here | 
|  | clock     uint32 | 
|  | // top of stack is here | 
|  | } | 
|  |  | 
|  | const ( | 
|  | _NSIG   = 14  // number of signals in sigtable array | 
|  | _ERRMAX = 128 // max length of note string | 
|  |  | 
|  | // Notes in runtimeĀ·sigtab that are handled by runtimeĀ·sigpanic. | 
|  | _SIGRFAULT = 2 | 
|  | _SIGWFAULT = 3 | 
|  | _SIGINTDIV = 4 | 
|  | _SIGFLOAT  = 5 | 
|  | _SIGTRAP   = 6 | 
|  | _SIGPROF   = 0 // dummy value defined for badsignal | 
|  | _SIGQUIT   = 0 // dummy value defined for sighandler | 
|  | ) |