github.com/gagliardetto/golang-go@v0.0.0-20201020153340-53909ea70814/cmd/link/main.go (about) 1 // Copyright 2015 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 5 package main 6 7 import ( 8 "github.com/gagliardetto/golang-go/cmd/internal/objabi" 9 "github.com/gagliardetto/golang-go/cmd/internal/sys" 10 "github.com/gagliardetto/golang-go/cmd/link/internal/amd64" 11 "github.com/gagliardetto/golang-go/cmd/link/internal/arm" 12 "github.com/gagliardetto/golang-go/cmd/link/internal/arm64" 13 "github.com/gagliardetto/golang-go/cmd/link/internal/ld" 14 "github.com/gagliardetto/golang-go/cmd/link/internal/mips" 15 "github.com/gagliardetto/golang-go/cmd/link/internal/mips64" 16 "github.com/gagliardetto/golang-go/cmd/link/internal/ppc64" 17 "github.com/gagliardetto/golang-go/cmd/link/internal/riscv64" 18 "github.com/gagliardetto/golang-go/cmd/link/internal/s390x" 19 "github.com/gagliardetto/golang-go/cmd/link/internal/wasm" 20 "github.com/gagliardetto/golang-go/cmd/link/internal/x86" 21 "fmt" 22 "os" 23 ) 24 25 // The bulk of the linker implementation lives in cmd/link/internal/ld. 26 // Architecture-specific code lives in cmd/link/internal/GOARCH. 27 // 28 // Program initialization: 29 // 30 // Before any argument parsing is done, the Init function of relevant 31 // architecture package is called. The only job done in Init is 32 // configuration of the architecture-specific variables. 33 // 34 // Then control flow passes to ld.Main, which parses flags, makes 35 // some configuration decisions, and then gives the architecture 36 // packages a second chance to modify the linker's configuration 37 // via the ld.Arch.Archinit function. 38 39 func main() { 40 var arch *sys.Arch 41 var theArch ld.Arch 42 43 switch objabi.GOARCH { 44 default: 45 fmt.Fprintf(os.Stderr, "link: unknown architecture %q\n", objabi.GOARCH) 46 os.Exit(2) 47 case "386": 48 arch, theArch = x86.Init() 49 case "amd64": 50 arch, theArch = amd64.Init() 51 case "arm": 52 arch, theArch = arm.Init() 53 case "arm64": 54 arch, theArch = arm64.Init() 55 case "mips", "mipsle": 56 arch, theArch = mips.Init() 57 case "mips64", "mips64le": 58 arch, theArch = mips64.Init() 59 case "ppc64", "ppc64le": 60 arch, theArch = ppc64.Init() 61 case "riscv64": 62 arch, theArch = riscv64.Init() 63 case "s390x": 64 arch, theArch = s390x.Init() 65 case "wasm": 66 arch, theArch = wasm.Init() 67 } 68 ld.Main(arch, theArch) 69 }