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// Copyright 2015 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 main
import (
"cmd/internal/objabi"
"cmd/internal/sys"
"cmd/link/internal/amd64"
"cmd/link/internal/arm"
"cmd/link/internal/arm64"
"cmd/link/internal/ld"
"cmd/link/internal/mips"
"cmd/link/internal/mips64"
"cmd/link/internal/ppc64"
"cmd/link/internal/riscv64"
"cmd/link/internal/s390x"
"cmd/link/internal/wasm"
"cmd/link/internal/x86"
"fmt"
"os"
)
// The bulk of the linker implementation lives in cmd/link/internal/ld.
// Architecture-specific code lives in cmd/link/internal/GOARCH.
//
// Program initialization:
//
// Before any argument parsing is done, the Init function of relevant
// architecture package is called. The only job done in Init is
// configuration of the architecture-specific variables.
//
// Then control flow passes to ld.Main, which parses flags, makes
// some configuration decisions, and then gives the architecture
// packages a second chance to modify the linker's configuration
// via the ld.Arch.Archinit function.
func main() {
var arch *sys.Arch
var theArch ld.Arch
switch objabi.GOARCH {
default:
fmt.Fprintf(os.Stderr, "link: unknown architecture %q\n", objabi.GOARCH)
os.Exit(2)
case "386":
arch, theArch = x86.Init()
case "amd64":
arch, theArch = amd64.Init()
case "arm":
arch, theArch = arm.Init()
case "arm64":
arch, theArch = arm64.Init()
case "mips", "mipsle":
arch, theArch = mips.Init()
case "mips64", "mips64le":
arch, theArch = mips64.Init()
case "ppc64", "ppc64le":
arch, theArch = ppc64.Init()
case "riscv64":
arch, theArch = riscv64.Init()
case "s390x":
arch, theArch = s390x.Init()
case "wasm":
arch, theArch = wasm.Init()
}
ld.Main(arch, theArch)
}
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