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1 // Inferno utils/5l/obj.c
2 // https://bitbucket.org/inferno-os/inferno-os/src/master/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 ppc64
32
33 import (
34         "cmd/internal/objabi"
35         "cmd/internal/sys"
36         "cmd/link/internal/ld"
37 )
38
39 func Init() (*sys.Arch, ld.Arch) {
40         arch := sys.ArchPPC64
41         if objabi.GOARCH == "ppc64le" {
42                 arch = sys.ArchPPC64LE
43         }
44
45         theArch := ld.Arch{
46                 Funcalign:       funcAlign,
47                 Maxalign:        maxAlign,
48                 Minalign:        minAlign,
49                 Dwarfregsp:      dwarfRegSP,
50                 Dwarfreglr:      dwarfRegLR,
51                 WriteTextBlocks: true,
52
53                 Adddynrel:        adddynrel,
54                 Archinit:         archinit,
55                 Archreloc:        archreloc,
56                 Archrelocvariant: archrelocvariant,
57                 Extreloc:         extreloc,
58                 Elfreloc1:        elfreloc1,
59                 ElfrelocSize:     24,
60                 Elfsetupplt:      elfsetupplt,
61                 Gentext:          gentext,
62                 Trampoline:       trampoline,
63                 Machoreloc1:      machoreloc1,
64                 Xcoffreloc1:      xcoffreloc1,
65
66                 // TODO(austin): ABI v1 uses /usr/lib/ld.so.1,
67                 Linuxdynld: "/lib64/ld64.so.1",
68
69                 Freebsddynld:   "XXX",
70                 Openbsddynld:   "XXX",
71                 Netbsddynld:    "XXX",
72                 Dragonflydynld: "XXX",
73                 Solarisdynld:   "XXX",
74         }
75
76         return arch, theArch
77 }
78
79 func archinit(ctxt *ld.Link) {
80         switch ctxt.HeadType {
81         default:
82                 ld.Exitf("unknown -H option: %v", ctxt.HeadType)
83
84         case objabi.Hplan9: /* plan 9 */
85                 ld.HEADR = 32
86
87                 if *ld.FlagTextAddr == -1 {
88                         *ld.FlagTextAddr = 4128
89                 }
90                 if *ld.FlagRound == -1 {
91                         *ld.FlagRound = 4096
92                 }
93
94         case objabi.Hlinux: /* ppc64 elf */
95                 ld.Elfinit(ctxt)
96                 ld.HEADR = ld.ELFRESERVE
97                 if *ld.FlagTextAddr == -1 {
98                         *ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
99                 }
100                 if *ld.FlagRound == -1 {
101                         *ld.FlagRound = 0x10000
102                 }
103
104         case objabi.Haix:
105                 ld.Xcoffinit(ctxt)
106         }
107 }