github.com/gocuntian/go@v0.0.0-20160610041250-fee02d270bf8/src/cmd/compile/internal/ppc64/galign.go (about)

     1  // Copyright 2009 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  package ppc64
     6  
     7  import (
     8  	"cmd/compile/internal/gc"
     9  	"cmd/internal/obj"
    10  	"cmd/internal/obj/ppc64"
    11  )
    12  
    13  func betypeinit() {
    14  	if gc.Ctxt.Flag_shared {
    15  		gc.Thearch.ReservedRegs = append(gc.Thearch.ReservedRegs, ppc64.REG_R2)
    16  		gc.Thearch.ReservedRegs = append(gc.Thearch.ReservedRegs, ppc64.REG_R12)
    17  	}
    18  }
    19  
    20  func Main() {
    21  	gc.Thearch.LinkArch = &ppc64.Linkppc64
    22  	if obj.Getgoarch() == "ppc64le" {
    23  		gc.Thearch.LinkArch = &ppc64.Linkppc64le
    24  	}
    25  	gc.Thearch.REGSP = ppc64.REGSP
    26  	gc.Thearch.REGCTXT = ppc64.REGCTXT
    27  	gc.Thearch.REGCALLX = ppc64.REG_R3
    28  	gc.Thearch.REGCALLX2 = ppc64.REG_R4
    29  	gc.Thearch.REGRETURN = ppc64.REG_R3
    30  	gc.Thearch.REGMIN = ppc64.REG_R0
    31  	gc.Thearch.REGMAX = ppc64.REG_R31
    32  	gc.Thearch.FREGMIN = ppc64.REG_F0
    33  	gc.Thearch.FREGMAX = ppc64.REG_F31
    34  	gc.Thearch.MAXWIDTH = 1 << 50
    35  	gc.Thearch.ReservedRegs = resvd
    36  
    37  	gc.Thearch.Betypeinit = betypeinit
    38  	gc.Thearch.Cgen_hmul = cgen_hmul
    39  	gc.Thearch.Cgen_shift = cgen_shift
    40  	gc.Thearch.Clearfat = clearfat
    41  	gc.Thearch.Defframe = defframe
    42  	gc.Thearch.Dodiv = dodiv
    43  	gc.Thearch.Excise = excise
    44  	gc.Thearch.Expandchecks = expandchecks
    45  	gc.Thearch.Getg = getg
    46  	gc.Thearch.Gins = gins
    47  	gc.Thearch.Ginscmp = ginscmp
    48  	gc.Thearch.Ginscon = ginscon
    49  	gc.Thearch.Ginsnop = ginsnop
    50  	gc.Thearch.Gmove = gmove
    51  	gc.Thearch.Peep = peep
    52  	gc.Thearch.Proginfo = proginfo
    53  	gc.Thearch.Regtyp = regtyp
    54  	gc.Thearch.Sameaddr = sameaddr
    55  	gc.Thearch.Smallindir = smallindir
    56  	gc.Thearch.Stackaddr = stackaddr
    57  	gc.Thearch.Blockcopy = blockcopy
    58  	gc.Thearch.Sudoaddable = sudoaddable
    59  	gc.Thearch.Sudoclean = sudoclean
    60  	gc.Thearch.Excludedregs = excludedregs
    61  	gc.Thearch.RtoB = RtoB
    62  	gc.Thearch.FtoB = RtoB
    63  	gc.Thearch.BtoR = BtoR
    64  	gc.Thearch.BtoF = BtoF
    65  	gc.Thearch.Optoas = optoas
    66  	gc.Thearch.Doregbits = doregbits
    67  	gc.Thearch.Regnames = regnames
    68  
    69  	initvariants()
    70  	initproginfo()
    71  
    72  	gc.Main()
    73  	gc.Exit(0)
    74  }