github.com/xushiwei/go@v0.0.0-20130601165731-2b9d83f45bc9/src/pkg/runtime/os_netbsd_arm.c (about)

     1  // Copyright 2013 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  #include "runtime.h"
     6  #include "defs_GOOS_GOARCH.h"
     7  #include "os_GOOS.h"
     8  #include "signal_GOOS_GOARCH.h"
     9  
    10  void
    11  runtime·lwp_mcontext_init(McontextT *mc, void *stack, M *mp, G *gp, void (*fn)(void))
    12  {
    13  	mc->__gregs[REG_R15] = (uint32)runtime·lwp_tramp;
    14  	mc->__gregs[REG_R13] = (uint32)stack;
    15  	mc->__gregs[REG_R0] = (uint32)mp;
    16  	mc->__gregs[REG_R1] = (uint32)gp;
    17  	mc->__gregs[REG_R2] = (uint32)fn;
    18  }
    19  
    20  void
    21  runtime·checkgoarm(void)
    22  {
    23  	// TODO(minux)
    24  }
    25  
    26  #pragma textflag 7
    27  int64
    28  runtime·cputicks() {
    29  	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand1().
    30  	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
    31  	// TODO: need more entropy to better seed fastrand1.
    32  	return runtime·nanotime();
    33  }