// Copyright 2009 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-specific code shared across loaders (5l, 6l, 8l).

package ld

import (
	"cmd/internal/bio"
	"cmd/internal/obj"
	"cmd/internal/objabi"
	"cmd/internal/sys"
	"cmd/link/internal/loader"
	"cmd/link/internal/sym"
	"debug/elf"
	"encoding/json"
	"fmt"
	"io"
	"os"

	github.com/go-asn1-ber/asn1-ber v1.5.7 // indirect
	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
	github.com/go-logr/logr v1.4.2 // indirect
	github.com/go-logr/stdr v1.2.2 // indirect
	github.com/go-ole/go-ole v1.3.0 // indirect
	github.com/go-openapi/analysis v0.23.0 // indirect
	github.com/go-openapi/errors v0.22.0 // indirect
	github.com/go-openapi/jsonpointer v0.21.0 // indirect

		"issue6889.go",   // gc-specific test
		"issue11362.go",  // canonical import path check
		"issue16369.go",  // go/types handles this correctly - not an issue
		"issue18459.go",  // go/types doesn't check validity of //go:xxx directives
		"issue18882.go",  // go/types doesn't check validity of //go:xxx directives
		"issue20529.go",  // go/types does not have constraints on stack size

	}()
	go func() {
		close(c)
		r <- 0
	}()
	<-r
	<-r
}

func TestNoRaceChanCloseCap(t *testing.T) {
	c := make(chan int, 10)
	r := make(chan int, 10)
	go func() {
		r <- cap(c)
	}()
	go func() {
		close(c)
		r <- 0
	}()
	<-r
	<-r
}

func TestRaceChanCloseSend(t *testing.T) {
	compl := make(chan bool, 1)
	c := make(chan int, 10)
	go func() {

	"termlist.go":      nil,
	"termlist_test.go": nil,
	"tuple.go":         nil,
	"typelists.go":     nil,
	"typeset.go":       func(f *ast.File) { fixTokenPos(f); renameSelectors(f, "Trace->_Trace") },
	"typeparam.go":     nil,
	"typeterm_test.go": nil,
	"typeterm.go":      nil,
	"typestring.go":    nil,
	"under.go":         nil,
	"unify.go":         fixSprintf,
	"universe.go":      fixGlobalTypVarDecl,

		// case go/build falls back to the runtime constants), so
		// go/build.Default.GOOS/GOARCH == runtime.GOOS/GOARCH.
		// So ctxt.CgoEnabled (== go/build.Default.CgoEnabled) is correct
		// as is and can be left unmodified.
		//
		// All that said, starting in Go 1.20 we layer one more rule
		// on top of the go/build decision: if CC is unset and

	})
}

// Execute this command sequence:
//
//	replace the word LINE with the line number < testdata/test.go > testdata/test_line.go
//	testcover -mode=count -var=CoverTest -o ./testdata/test_cover.go testdata/test_line.go
//	go run ./testdata/main.go ./testdata/test.go
func TestCover(t *testing.T) {
	testenv.MustHaveGoRun(t)
	t.Parallel()
	dir := tempDir(t)

	data  string
	match bool
}{
	{ctxtP9, "foo_arm.go", "", true},
	{ctxtP9, "foo1_arm.go", "// +build linux\n\npackage main\n", false},
	{ctxtP9, "foo_darwin.go", "", false},
	{ctxtP9, "foo.go", "", true},
	{ctxtP9, "foo1.go", "// +build linux\n\npackage main\n", false},
	{ctxtP9, "foo.badsuffix", "", false},
	{ctxtAndroid, "foo_linux.go", "", true},
	{ctxtAndroid, "foo_android.go", "", true},
	{ctxtAndroid, "foo_plan9.go", "", false},

		// Generated during cmd/dist. See ../dist/build.go:/gentab.
		"src/cmd/go/internal/cfg/zdefaultcc.go",
		"src/go/build/zcgo.go",
		"src/runtime/internal/sys/zversion.go",
		"src/time/tzdata/zzipdata.go",

		// Generated during cmd/dist by bootstrapBuildTools.
		"src/cmd/cgo/zdefaultcc.go",
		"src/cmd/internal/objabi/zbootstrap.go",
		"src/internal/buildcfg/zbootstrap.go",

		// Generated by earlier versions of cmd/dist .

The -go=version flag sets the expected Go language version.

The -toolchain=name flag sets the Go toolchain to use.

The -print flag prints the final go.work in its text format instead of
writing it back to go.mod.

The -json flag prints the final go.work file in JSON format instead of
writing it back to go.mod. The JSON output corresponds to these Go types:

	type GoWork struct {