github.com/zebozhuang/go@v0.0.0-20200207033046-f8a98f6f5c5d/src/cmd/link/internal/mips64/obj.go (about)

     1  // Inferno utils/5l/obj.c
     2  // https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5l/obj.c
     3  //
     4  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
     5  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
     6  //	Portions Copyright © 1997-1999 Vita Nuova Limited
     7  //	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
     8  //	Portions Copyright © 2004,2006 Bruce Ellis
     9  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
    10  //	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
    11  //	Portions Copyright © 2009 The Go Authors. All rights reserved.
    12  //
    13  // Permission is hereby granted, free of charge, to any person obtaining a copy
    14  // of this software and associated documentation files (the "Software"), to deal
    15  // in the Software without restriction, including without limitation the rights
    16  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    17  // copies of the Software, and to permit persons to whom the Software is
    18  // furnished to do so, subject to the following conditions:
    19  //
    20  // The above copyright notice and this permission notice shall be included in
    21  // all copies or substantial portions of the Software.
    22  //
    23  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    24  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    25  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    26  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    27  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    28  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    29  // THE SOFTWARE.
    30  
    31  package mips64
    32  
    33  import (
    34  	"cmd/internal/objabi"
    35  	"cmd/internal/sys"
    36  	"cmd/link/internal/ld"
    37  	"fmt"
    38  )
    39  
    40  func Init() {
    41  	if objabi.GOARCH == "mips64le" {
    42  		ld.SysArch = sys.ArchMIPS64LE
    43  	} else {
    44  		ld.SysArch = sys.ArchMIPS64
    45  	}
    46  
    47  	ld.Thearch.Funcalign = funcAlign
    48  	ld.Thearch.Maxalign = maxAlign
    49  	ld.Thearch.Minalign = minAlign
    50  	ld.Thearch.Dwarfregsp = dwarfRegSP
    51  	ld.Thearch.Dwarfreglr = dwarfRegLR
    52  
    53  	ld.Thearch.Adddynrel = adddynrel
    54  	ld.Thearch.Archinit = archinit
    55  	ld.Thearch.Archreloc = archreloc
    56  	ld.Thearch.Archrelocvariant = archrelocvariant
    57  	ld.Thearch.Asmb = asmb
    58  	ld.Thearch.Elfreloc1 = elfreloc1
    59  	ld.Thearch.Elfsetupplt = elfsetupplt
    60  	ld.Thearch.Gentext = gentext
    61  	ld.Thearch.Machoreloc1 = machoreloc1
    62  	if ld.SysArch == sys.ArchMIPS64LE {
    63  		ld.Thearch.Lput = ld.Lputl
    64  		ld.Thearch.Wput = ld.Wputl
    65  		ld.Thearch.Vput = ld.Vputl
    66  		ld.Thearch.Append16 = ld.Append16l
    67  		ld.Thearch.Append32 = ld.Append32l
    68  		ld.Thearch.Append64 = ld.Append64l
    69  	} else {
    70  		ld.Thearch.Lput = ld.Lputb
    71  		ld.Thearch.Wput = ld.Wputb
    72  		ld.Thearch.Vput = ld.Vputb
    73  		ld.Thearch.Append16 = ld.Append16b
    74  		ld.Thearch.Append32 = ld.Append32b
    75  		ld.Thearch.Append64 = ld.Append64b
    76  	}
    77  
    78  	ld.Thearch.Linuxdynld = "/lib64/ld64.so.1"
    79  
    80  	ld.Thearch.Freebsddynld = "XXX"
    81  	ld.Thearch.Openbsddynld = "XXX"
    82  	ld.Thearch.Netbsddynld = "XXX"
    83  	ld.Thearch.Dragonflydynld = "XXX"
    84  	ld.Thearch.Solarisdynld = "XXX"
    85  }
    86  
    87  func archinit(ctxt *ld.Link) {
    88  	switch ld.Headtype {
    89  	default:
    90  		ld.Exitf("unknown -H option: %v", ld.Headtype)
    91  
    92  	case objabi.Hplan9: /* plan 9 */
    93  		ld.HEADR = 32
    94  
    95  		if *ld.FlagTextAddr == -1 {
    96  			*ld.FlagTextAddr = 16*1024 + int64(ld.HEADR)
    97  		}
    98  		if *ld.FlagDataAddr == -1 {
    99  			*ld.FlagDataAddr = 0
   100  		}
   101  		if *ld.FlagRound == -1 {
   102  			*ld.FlagRound = 16 * 1024
   103  		}
   104  
   105  	case objabi.Hlinux: /* mips64 elf */
   106  		ld.Elfinit(ctxt)
   107  		ld.HEADR = ld.ELFRESERVE
   108  		if *ld.FlagTextAddr == -1 {
   109  			*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
   110  		}
   111  		if *ld.FlagDataAddr == -1 {
   112  			*ld.FlagDataAddr = 0
   113  		}
   114  		if *ld.FlagRound == -1 {
   115  			*ld.FlagRound = 0x10000
   116  		}
   117  
   118  	case objabi.Hnacl:
   119  		ld.Elfinit(ctxt)
   120  		ld.HEADR = 0x10000
   121  		ld.Funcalign = 16
   122  		if *ld.FlagTextAddr == -1 {
   123  			*ld.FlagTextAddr = 0x20000
   124  		}
   125  		if *ld.FlagDataAddr == -1 {
   126  			*ld.FlagDataAddr = 0
   127  		}
   128  		if *ld.FlagRound == -1 {
   129  			*ld.FlagRound = 0x10000
   130  		}
   131  	}
   132  
   133  	if *ld.FlagDataAddr != 0 && *ld.FlagRound != 0 {
   134  		fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(*ld.FlagDataAddr), uint32(*ld.FlagRound))
   135  	}
   136  }