// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"cmd/internal/objabi"
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"cmd/internal/sys"
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"cmd/link/internal/amd64"
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"cmd/link/internal/arm"
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"cmd/link/internal/arm64"
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"cmd/link/internal/ld"
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"cmd/link/internal/mips"
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"cmd/link/internal/mips64"
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"cmd/link/internal/ppc64"
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"cmd/link/internal/s390x"
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"cmd/link/internal/wasm"
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"cmd/link/internal/x86"
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"fmt"
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"os"
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)
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// The bulk of the linker implementation lives in cmd/link/internal/ld.
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// Architecture-specific code lives in cmd/link/internal/GOARCH.
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//
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// Program initialization:
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//
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// Before any argument parsing is done, the Init function of relevant
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// architecture package is called. The only job done in Init is
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// configuration of the architecture-specific variables.
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//
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// Then control flow passes to ld.Main, which parses flags, makes
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// some configuration decisions, and then gives the architecture
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// packages a second chance to modify the linker's configuration
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// via the ld.Arch.Archinit function.
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func main() {
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var arch *sys.Arch
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var theArch ld.Arch
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switch objabi.GOARCH {
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default:
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fmt.Fprintf(os.Stderr, "link: unknown architecture %q\n", objabi.GOARCH)
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os.Exit(2)
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case "386":
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arch, theArch = x86.Init()
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case "amd64", "amd64p32":
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arch, theArch = amd64.Init()
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case "arm":
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arch, theArch = arm.Init()
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case "arm64":
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arch, theArch = arm64.Init()
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case "mips", "mipsle":
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arch, theArch = mips.Init()
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case "mips64", "mips64le":
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arch, theArch = mips64.Init()
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case "ppc64", "ppc64le":
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arch, theArch = ppc64.Init()
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case "s390x":
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arch, theArch = s390x.Init()
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case "wasm":
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arch, theArch = wasm.Init()
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}
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ld.Main(arch, theArch)
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}
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