1// Copyright 2022 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
5package loong64
6
7import (
8	"cmd/internal/objabi"
9	"cmd/internal/sys"
10	"cmd/link/internal/ld"
11)
12
13func Init() (*sys.Arch, ld.Arch) {
14	arch := sys.ArchLoong64
15
16	theArch := ld.Arch{
17		Funcalign:        funcAlign,
18		Maxalign:         maxAlign,
19		Minalign:         minAlign,
20		Dwarfregsp:       dwarfRegSP,
21		Dwarfreglr:       dwarfRegLR,
22		CodePad:          []byte{0x00, 0x00, 0x2a, 0x00}, // BREAK 0
23		Adddynrel:        adddynrel,
24		Archinit:         archinit,
25		Archreloc:        archreloc,
26		Archrelocvariant: archrelocvariant,
27		Extreloc:         extreloc,
28		Machoreloc1:      machoreloc1,
29		Gentext:          gentext,
30
31		ELF: ld.ELFArch{
32			Linuxdynld:     "/lib64/ld-linux-loongarch-lp64d.so.1",
33			LinuxdynldMusl: "/lib/ld-musl-loongarch64.so.1",
34			Freebsddynld:   "XXX",
35			Openbsddynld:   "XXX",
36			Netbsddynld:    "XXX",
37			Dragonflydynld: "XXX",
38			Solarisdynld:   "XXX",
39
40			Reloc1:    elfreloc1,
41			RelocSize: 24,
42			SetupPLT:  elfsetupplt,
43		},
44	}
45
46	return arch, theArch
47}
48
49func archinit(ctxt *ld.Link) {
50	switch ctxt.HeadType {
51	default:
52		ld.Exitf("unknown -H option: %v", ctxt.HeadType)
53	case objabi.Hlinux: /* loong64 elf */
54		ld.Elfinit(ctxt)
55		ld.HEADR = ld.ELFRESERVE
56		if *ld.FlagRound == -1 {
57			*ld.FlagRound = 0x10000
58		}
59		if *ld.FlagTextAddr == -1 {
60			*ld.FlagTextAddr = ld.Rnd(0x10000, *ld.FlagRound) + int64(ld.HEADR)
61		}
62	}
63}
64