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-rw-r--r--src/cmd/link/internal/mips64/asm.go157
-rw-r--r--src/cmd/link/internal/mips64/l.go74
-rw-r--r--src/cmd/link/internal/mips64/obj.go98
3 files changed, 329 insertions, 0 deletions
diff --git a/src/cmd/link/internal/mips64/asm.go b/src/cmd/link/internal/mips64/asm.go
new file mode 100644
index 0000000..4789b41
--- /dev/null
+++ b/src/cmd/link/internal/mips64/asm.go
@@ -0,0 +1,157 @@
+// Inferno utils/5l/asm.c
+// https://bitbucket.org/inferno-os/inferno-os/src/master/utils/5l/asm.c
+//
+// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// Portions Copyright © 1997-1999 Vita Nuova Limited
+// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// Portions Copyright © 2004,2006 Bruce Ellis
+// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package mips64
+
+import (
+ "cmd/internal/objabi"
+ "cmd/internal/sys"
+ "cmd/link/internal/ld"
+ "cmd/link/internal/loader"
+ "cmd/link/internal/sym"
+ "debug/elf"
+)
+
+func gentext(ctxt *ld.Link, ldr *loader.Loader) {}
+
+func elfreloc1(ctxt *ld.Link, out *ld.OutBuf, ldr *loader.Loader, s loader.Sym, r loader.ExtReloc, ri int, sectoff int64) bool {
+
+ // mips64 ELF relocation (endian neutral)
+ // offset uint64
+ // sym uint32
+ // ssym uint8
+ // type3 uint8
+ // type2 uint8
+ // type uint8
+ // addend int64
+
+ out.Write64(uint64(sectoff))
+
+ elfsym := ld.ElfSymForReloc(ctxt, r.Xsym)
+ out.Write32(uint32(elfsym))
+ out.Write8(0)
+ out.Write8(0)
+ out.Write8(0)
+ switch r.Type {
+ default:
+ return false
+ case objabi.R_ADDR, objabi.R_DWARFSECREF:
+ switch r.Size {
+ case 4:
+ out.Write8(uint8(elf.R_MIPS_32))
+ case 8:
+ out.Write8(uint8(elf.R_MIPS_64))
+ default:
+ return false
+ }
+ case objabi.R_ADDRMIPS:
+ out.Write8(uint8(elf.R_MIPS_LO16))
+ case objabi.R_ADDRMIPSU:
+ out.Write8(uint8(elf.R_MIPS_HI16))
+ case objabi.R_ADDRMIPSTLS:
+ out.Write8(uint8(elf.R_MIPS_TLS_TPREL_LO16))
+ case objabi.R_CALLMIPS,
+ objabi.R_JMPMIPS:
+ out.Write8(uint8(elf.R_MIPS_26))
+ }
+ out.Write64(uint64(r.Xadd))
+
+ return true
+}
+
+func elfsetupplt(ctxt *ld.Link, plt, gotplt *loader.SymbolBuilder, dynamic loader.Sym) {
+ return
+}
+
+func machoreloc1(*sys.Arch, *ld.OutBuf, *loader.Loader, loader.Sym, loader.ExtReloc, int64) bool {
+ return false
+}
+
+func archreloc(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, r loader.Reloc, s loader.Sym, val int64) (o int64, nExtReloc int, ok bool) {
+ if target.IsExternal() {
+ switch r.Type() {
+ default:
+ return val, 0, false
+
+ case objabi.R_ADDRMIPS,
+ objabi.R_ADDRMIPSU,
+ objabi.R_ADDRMIPSTLS,
+ objabi.R_CALLMIPS,
+ objabi.R_JMPMIPS:
+ return val, 1, true
+ }
+ }
+
+ const isOk = true
+ const noExtReloc = 0
+ rs := r.Sym()
+ rs = ldr.ResolveABIAlias(rs)
+ switch r.Type() {
+ case objabi.R_ADDRMIPS,
+ objabi.R_ADDRMIPSU:
+ t := ldr.SymValue(rs) + r.Add()
+ if r.Type() == objabi.R_ADDRMIPS {
+ return int64(val&0xffff0000 | t&0xffff), noExtReloc, isOk
+ }
+ return int64(val&0xffff0000 | ((t+1<<15)>>16)&0xffff), noExtReloc, isOk
+ case objabi.R_ADDRMIPSTLS:
+ // thread pointer is at 0x7000 offset from the start of TLS data area
+ t := ldr.SymValue(rs) + r.Add() - 0x7000
+ if t < -32768 || t >= 32678 {
+ ldr.Errorf(s, "TLS offset out of range %d", t)
+ }
+ return int64(val&0xffff0000 | t&0xffff), noExtReloc, isOk
+ case objabi.R_CALLMIPS,
+ objabi.R_JMPMIPS:
+ // Low 26 bits = (S + A) >> 2
+ t := ldr.SymValue(rs) + r.Add()
+ return int64(val&0xfc000000 | (t>>2)&^0xfc000000), noExtReloc, isOk
+ }
+
+ return val, 0, false
+}
+
+func archrelocvariant(*ld.Target, *loader.Loader, loader.Reloc, sym.RelocVariant, loader.Sym, int64) int64 {
+ return -1
+}
+
+func extreloc(target *ld.Target, ldr *loader.Loader, r loader.Reloc, s loader.Sym) (loader.ExtReloc, bool) {
+ switch r.Type() {
+ case objabi.R_ADDRMIPS,
+ objabi.R_ADDRMIPSU:
+ return ld.ExtrelocViaOuterSym(ldr, r, s), true
+
+ case objabi.R_ADDRMIPSTLS,
+ objabi.R_CALLMIPS,
+ objabi.R_JMPMIPS:
+ return ld.ExtrelocSimple(ldr, r), true
+ }
+ return loader.ExtReloc{}, false
+}
diff --git a/src/cmd/link/internal/mips64/l.go b/src/cmd/link/internal/mips64/l.go
new file mode 100644
index 0000000..837af0e
--- /dev/null
+++ b/src/cmd/link/internal/mips64/l.go
@@ -0,0 +1,74 @@
+// Inferno utils/5l/asm.c
+// https://bitbucket.org/inferno-os/inferno-os/src/master/utils/5l/asm.c
+//
+// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// Portions Copyright © 1997-1999 Vita Nuova Limited
+// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// Portions Copyright © 2004,2006 Bruce Ellis
+// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package mips64
+
+// Writing object files.
+
+// cmd/9l/l.h from Vita Nuova.
+//
+// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// Portions Copyright © 1997-1999 Vita Nuova Limited
+// Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
+// Portions Copyright © 2004,2006 Bruce Ellis
+// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+const (
+ maxAlign = 32 // max data alignment
+ minAlign = 1 // min data alignment
+ funcAlign = 8
+)
+
+/* Used by ../internal/ld/dwarf.go */
+const (
+ dwarfRegSP = 29
+ dwarfRegLR = 31
+)
diff --git a/src/cmd/link/internal/mips64/obj.go b/src/cmd/link/internal/mips64/obj.go
new file mode 100644
index 0000000..01d89a2
--- /dev/null
+++ b/src/cmd/link/internal/mips64/obj.go
@@ -0,0 +1,98 @@
+// Inferno utils/5l/obj.c
+// https://bitbucket.org/inferno-os/inferno-os/src/master/utils/5l/obj.c
+//
+// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// Portions Copyright © 1997-1999 Vita Nuova Limited
+// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// Portions Copyright © 2004,2006 Bruce Ellis
+// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package mips64
+
+import (
+ "cmd/internal/objabi"
+ "cmd/internal/sys"
+ "cmd/link/internal/ld"
+)
+
+func Init() (*sys.Arch, ld.Arch) {
+ arch := sys.ArchMIPS64
+ if objabi.GOARCH == "mips64le" {
+ arch = sys.ArchMIPS64LE
+ }
+
+ theArch := ld.Arch{
+ Funcalign: funcAlign,
+ Maxalign: maxAlign,
+ Minalign: minAlign,
+ Dwarfregsp: dwarfRegSP,
+ Dwarfreglr: dwarfRegLR,
+ Archinit: archinit,
+ Archreloc: archreloc,
+ Archrelocvariant: archrelocvariant,
+ Extreloc: extreloc,
+ Elfreloc1: elfreloc1,
+ ElfrelocSize: 24,
+ Elfsetupplt: elfsetupplt,
+ Gentext: gentext,
+ Machoreloc1: machoreloc1,
+
+ Linuxdynld: "/lib64/ld64.so.1",
+ Freebsddynld: "XXX",
+ Openbsddynld: "/usr/libexec/ld.so",
+ Netbsddynld: "XXX",
+ Dragonflydynld: "XXX",
+ Solarisdynld: "XXX",
+ }
+
+ return arch, theArch
+}
+
+func archinit(ctxt *ld.Link) {
+ switch ctxt.HeadType {
+ default:
+ ld.Exitf("unknown -H option: %v", ctxt.HeadType)
+
+ case objabi.Hplan9: /* plan 9 */
+ ld.HEADR = 32
+
+ if *ld.FlagTextAddr == -1 {
+ *ld.FlagTextAddr = 16*1024 + int64(ld.HEADR)
+ }
+ if *ld.FlagRound == -1 {
+ *ld.FlagRound = 16 * 1024
+ }
+
+ case objabi.Hlinux, /* mips64 elf */
+ objabi.Hopenbsd:
+ ld.Elfinit(ctxt)
+ ld.HEADR = ld.ELFRESERVE
+ if *ld.FlagTextAddr == -1 {
+ *ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
+ }
+ if *ld.FlagRound == -1 {
+ *ld.FlagRound = 0x10000
+ }
+ }
+}
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