feat: update gofmt code from go1.24.4

Author: ldez

gofmt/internal/cfg/cfg.go

@@ -37,12 +37,14 @@ const KnownEnv = `
 	GOARCH
 	GOARM
 	GOARM64
+	GOAUTH
 	GOBIN
 	GOCACHE
 	GOCACHEPROG
 	GOENV
 	GOEXE
 	GOEXPERIMENT
+	GOFIPS140
 	GOFLAGS
 	GOGCCFLAGS
 	GOHOSTARCH

gofmt/internal/goarch/gengoarch.go

@@ -0,0 +1,60 @@
+// Copyright 2014 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.
+
+//go:build ignore
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+var goarches []string
+
+func main() {
+	data, err := os.ReadFile("../../internal/syslist/syslist.go")
+	if err != nil {
+		log.Fatal(err)
+	}
+	const goarchPrefix = `var KnownArch = map[string]bool{`
+	inGOARCH := false
+	for _, line := range strings.Split(string(data), "\n") {
+		if strings.HasPrefix(line, goarchPrefix) {
+			inGOARCH = true
+		} else if inGOARCH && strings.HasPrefix(line, "}") {
+			break
+		} else if inGOARCH {
+			goarch := strings.Fields(line)[0]
+			goarch = strings.TrimPrefix(goarch, `"`)
+			goarch = strings.TrimSuffix(goarch, `":`)
+			goarches = append(goarches, goarch)
+		}
+	}
+
+	for _, target := range goarches {
+		if target == "amd64p32" {
+			continue
+		}
+		var buf bytes.Buffer
+		fmt.Fprintf(&buf, "// Code generated by gengoarch.go using 'go generate'. DO NOT EDIT.\n\n")
+		fmt.Fprintf(&buf, "//go:build %s\n\n", target) // must explicitly include target for bootstrapping purposes
+		fmt.Fprintf(&buf, "package goarch\n\n")
+		fmt.Fprintf(&buf, "const GOARCH = `%s`\n\n", target)
+		for _, goarch := range goarches {
+			value := 0
+			if goarch == target {
+				value = 1
+			}
+			fmt.Fprintf(&buf, "const Is%s = %d\n", strings.Title(goarch), value)
+		}
+		err := os.WriteFile("zgoarch_"+target+".go", buf.Bytes(), 0666)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}

gofmt/internal/goarch/goarch.go

@@ -0,0 +1,60 @@
+// Copyright 2021 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 goarch contains GOARCH-specific constants.
+package goarch
+
+// The next line makes 'go generate' write the zgoarch*.go files with
+// per-arch information, including constants named $GOARCH for every
+// GOARCH. The constant is 1 on the current system, 0 otherwise; multiplying
+// by them is useful for defining GOARCH-specific constants.
+//
+//go:generate go run gengoarch.go
+
+type ArchFamilyType int
+
+const (
+	AMD64 ArchFamilyType = iota
+	ARM
+	ARM64
+	I386
+	LOONG64
+	MIPS
+	MIPS64
+	PPC64
+	RISCV64
+	S390X
+	WASM
+)
+
+// PtrSize is the size of a pointer in bytes - unsafe.Sizeof(uintptr(0)) but as an ideal constant.
+// It is also the size of the machine's native word size (that is, 4 on 32-bit systems, 8 on 64-bit).
+const PtrSize = 4 << (^uintptr(0) >> 63)
+
+// ArchFamily is the architecture family (AMD64, ARM, ...)
+const ArchFamily ArchFamilyType = _ArchFamily
+
+// BigEndian reports whether the architecture is big-endian.
+const BigEndian = IsArmbe|IsArm64be|IsMips|IsMips64|IsPpc|IsPpc64|IsS390|IsS390x|IsSparc|IsSparc64 == 1
+
+// DefaultPhysPageSize is the default physical page size.
+const DefaultPhysPageSize = _DefaultPhysPageSize
+
+// PCQuantum is the minimal unit for a program counter (1 on x86, 4 on most other systems).
+// The various PC tables record PC deltas pre-divided by PCQuantum.
+const PCQuantum = _PCQuantum
+
+// Int64Align is the required alignment for a 64-bit integer (4 on 32-bit systems, 8 on 64-bit).
+const Int64Align = PtrSize
+
+// MinFrameSize is the size of the system-reserved words at the bottom
+// of a frame (just above the architectural stack pointer).
+// It is zero on x86 and PtrSize on most non-x86 (LR-based) systems.
+// On PowerPC it is larger, to cover three more reserved words:
+// the compiler word, the link editor word, and the TOC save word.
+const MinFrameSize = _MinFrameSize
+
+// StackAlign is the required alignment of the SP register.
+// The stack must be at least word aligned, but some architectures require more.
+const StackAlign = _StackAlign

gofmt/internal/goarch/goarch_386.go

@@ -0,0 +1,13 @@
+// Copyright 2014 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 goarch
+
+const (
+	_ArchFamily          = I386
+	_DefaultPhysPageSize = 4096
+	_PCQuantum           = 1
+	_MinFrameSize        = 0
+	_StackAlign          = PtrSize
+)

gofmt/internal/goarch/goarch_amd64.go

@@ -0,0 +1,13 @@
+// Copyright 2014 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 goarch
+
+const (
+	_ArchFamily          = AMD64
+	_DefaultPhysPageSize = 4096
+	_PCQuantum           = 1
+	_MinFrameSize        = 0
+	_StackAlign          = PtrSize
+)

gofmt/internal/goarch/goarch_arm.go

@@ -0,0 +1,13 @@
+// Copyright 2014 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 goarch
+
+const (
+	_ArchFamily          = ARM
+	_DefaultPhysPageSize = 65536
+	_PCQuantum           = 4
+	_MinFrameSize        = 4
+	_StackAlign          = PtrSize
+)

gofmt/internal/goarch/goarch_arm64.go

@@ -0,0 +1,13 @@
+// Copyright 2014 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 goarch
+
+const (
+	_ArchFamily          = ARM64
+	_DefaultPhysPageSize = 65536
+	_PCQuantum           = 4
+	_MinFrameSize        = 8
+	_StackAlign          = 16
+)

gofmt/internal/goarch/goarch_loong64.go

@@ -0,0 +1,15 @@
+// Copyright 2022 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.
+
+//go:build loong64
+
+package goarch
+
+const (
+	_ArchFamily          = LOONG64
+	_DefaultPhysPageSize = 16384
+	_PCQuantum           = 4
+	_MinFrameSize        = 8
+	_StackAlign          = PtrSize
+)

gofmt/internal/goarch/goarch_mips.go

@@ -0,0 +1,13 @@
+// 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 goarch
+
+const (
+	_ArchFamily          = MIPS
+	_DefaultPhysPageSize = 65536
+	_PCQuantum           = 4
+	_MinFrameSize        = 4
+	_StackAlign          = PtrSize
+)

gofmt/internal/goarch/goarch_mips64.go

@@ -0,0 +1,13 @@
+// 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 goarch
+
+const (
+	_ArchFamily          = MIPS64
+	_DefaultPhysPageSize = 16384
+	_PCQuantum           = 4
+	_MinFrameSize        = 8
+	_StackAlign          = PtrSize
+)