github.com/tcnksm/go@v0.0.0-20141208075154-439b32936367/src/runtime/export_test.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  // Export guts for testing.
     6  
     7  package runtime
     8  
     9  import "unsafe"
    10  
    11  var Fadd64 = fadd64
    12  var Fsub64 = fsub64
    13  var Fmul64 = fmul64
    14  var Fdiv64 = fdiv64
    15  var F64to32 = f64to32
    16  var F32to64 = f32to64
    17  var Fcmp64 = fcmp64
    18  var Fintto64 = fintto64
    19  var F64toint = f64toint
    20  
    21  // in asm_*.s
    22  func stackguard() (sp, limit uintptr)
    23  
    24  var Entersyscall = entersyscall
    25  var Exitsyscall = exitsyscall
    26  var LockedOSThread = lockedOSThread
    27  
    28  type LFNode struct {
    29  	Next    uint64
    30  	Pushcnt uintptr
    31  }
    32  
    33  func lfstackpush_m()
    34  func lfstackpop_m()
    35  
    36  func LFStackPush(head *uint64, node *LFNode) {
    37  	lfstackpush(head, (*lfnode)(unsafe.Pointer(node)))
    38  }
    39  
    40  func LFStackPop(head *uint64) *LFNode {
    41  	return (*LFNode)(unsafe.Pointer(lfstackpop(head)))
    42  }
    43  
    44  type ParFor struct {
    45  	body    *byte
    46  	done    uint32
    47  	Nthr    uint32
    48  	nthrmax uint32
    49  	thrseq  uint32
    50  	Cnt     uint32
    51  	Ctx     *byte
    52  	wait    bool
    53  }
    54  
    55  func newparfor_m()
    56  func parforsetup_m()
    57  func parfordo_m()
    58  func parforiters_m()
    59  
    60  func NewParFor(nthrmax uint32) *ParFor {
    61  	var desc *ParFor
    62  	systemstack(func() {
    63  		desc = (*ParFor)(unsafe.Pointer(parforalloc(nthrmax)))
    64  	})
    65  	return desc
    66  }
    67  
    68  func ParForSetup(desc *ParFor, nthr, n uint32, ctx *byte, wait bool, body func(*ParFor, uint32)) {
    69  	systemstack(func() {
    70  		parforsetup((*parfor)(unsafe.Pointer(desc)), nthr, n, unsafe.Pointer(ctx), wait,
    71  			*(*func(*parfor, uint32))(unsafe.Pointer(&body)))
    72  	})
    73  }
    74  
    75  func ParForDo(desc *ParFor) {
    76  	systemstack(func() {
    77  		parfordo((*parfor)(unsafe.Pointer(desc)))
    78  	})
    79  }
    80  
    81  func ParForIters(desc *ParFor, tid uint32) (uint32, uint32) {
    82  	desc1 := (*parfor)(unsafe.Pointer(desc))
    83  	pos := desc_thr_index(desc1, tid).pos
    84  	return uint32(pos), uint32(pos >> 32)
    85  }
    86  
    87  func GCMask(x interface{}) (ret []byte) {
    88  	e := (*eface)(unsafe.Pointer(&x))
    89  	s := (*slice)(unsafe.Pointer(&ret))
    90  	systemstack(func() {
    91  		var len uintptr
    92  		getgcmask(e.data, e._type, &s.array, &len)
    93  		s.len = uint(len)
    94  		s.cap = s.len
    95  	})
    96  	return
    97  }
    98  
    99  func RunSchedLocalQueueTest() {
   100  	systemstack(testSchedLocalQueue)
   101  }
   102  func RunSchedLocalQueueStealTest() {
   103  	systemstack(testSchedLocalQueueSteal)
   104  }
   105  
   106  var HaveGoodHash = haveGoodHash
   107  var StringHash = stringHash
   108  var BytesHash = bytesHash
   109  var Int32Hash = int32Hash
   110  var Int64Hash = int64Hash
   111  var EfaceHash = efaceHash
   112  var IfaceHash = ifaceHash
   113  var MemclrBytes = memclrBytes
   114  
   115  var HashLoad = &hashLoad
   116  
   117  // For testing.
   118  func GogoBytes() int32 {
   119  	return _RuntimeGogoBytes
   120  }
   121  
   122  // entry point for testing
   123  func GostringW(w []uint16) (s string) {
   124  	systemstack(func() {
   125  		s = gostringw(&w[0])
   126  	})
   127  	return
   128  }
   129  
   130  var Gostringnocopy = gostringnocopy
   131  var Maxstring = &maxstring