| // Copyright 2019 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package riscv64 |
| |
| import ( |
| "cmd/internal/objabi" |
| "cmd/internal/sys" |
| "cmd/link/internal/ld" |
| ) |
| |
| func Init() (*sys.Arch, ld.Arch) { |
| arch := sys.ArchRISCV64 |
| |
| theArch := ld.Arch{ |
| Funcalign: funcAlign, |
| Maxalign: maxAlign, |
| Minalign: minAlign, |
| Dwarfregsp: dwarfRegSP, |
| Dwarfreglr: dwarfRegLR, |
| |
| Archinit: archinit, |
| Archreloc: archreloc, |
| Archrelocvariant: archrelocvariant, |
| Extreloc: extreloc, |
| |
| // TrampLimit is set such that we always run the trampoline |
| // generation code. This is necessary since calls to external |
| // symbols require the use of trampolines, regardless of the |
| // text size. |
| TrampLimit: 1, |
| Trampoline: trampoline, |
| |
| Gentext: gentext, |
| GenSymsLate: genSymsLate, |
| Machoreloc1: machoreloc1, |
| |
| ELF: ld.ELFArch{ |
| Linuxdynld: "/lib/ld.so.1", |
| |
| Freebsddynld: "/usr/libexec/ld-elf.so.1", |
| Netbsddynld: "XXX", |
| Openbsddynld: "XXX", |
| Dragonflydynld: "XXX", |
| Solarisdynld: "XXX", |
| |
| Reloc1: elfreloc1, |
| RelocSize: 24, |
| SetupPLT: elfsetupplt, |
| }, |
| } |
| |
| return arch, theArch |
| } |
| |
| func archinit(ctxt *ld.Link) { |
| switch ctxt.HeadType { |
| case objabi.Hlinux, objabi.Hfreebsd: |
| ld.Elfinit(ctxt) |
| ld.HEADR = ld.ELFRESERVE |
| if *ld.FlagTextAddr == -1 { |
| *ld.FlagTextAddr = 0x10000 + int64(ld.HEADR) |
| } |
| if *ld.FlagRound == -1 { |
| *ld.FlagRound = 0x10000 |
| } |
| default: |
| ld.Exitf("unknown -H option: %v", ctxt.HeadType) |
| } |
| } |