} else {
			defer os.RemoveAll(tmpDir)
		}
		cfg.BuildContext.GOPATH = tmpDir
	}

	cfg.GOPROXY = "direct"
	cfg.GOSUMDB = "off"
	modload.Init()

	// Shard tests by downloading only every nth module when shard flags are set.
	// This makes it easier to test small groups of modules quickly. We avoid
	// testing similarly named modules together (the list is sorted by module
	// path and version).

		// Only start multiple test dir shards on builders,
		// where they get distributed to multiple machines.
		// See issues 20141 and 31834.
		nShards := 1
		if os.Getenv("GO_BUILDER_NAME") != "" {
			nShards = 10
		}
		if n, err := strconv.Atoi(os.Getenv("GO_TEST_SHARDS")); err == nil {
			nShards = n
		}
		for shard := 0; shard < nShards; shard++ {
			id := fmt.Sprintf("%d_%d", shard, nShards)

	force          = flag.Bool("f", false, "ignore expected-failure test lists")
	target         = flag.String("target", "", "cross-compile tests for `goos/goarch`")

	shard  = flag.Int("shard", 0, "shard index to run. Only applicable if -shards is non-zero.")
	shards = flag.Int("shards", 0, "number of shards. If 0, all tests are run. This is used by the continuous build.")
)

// defaultAllCodeGen returns the default value of the -all_codegen

	Shared     = flag.Bool("shared", false, "generate code that can be linked into a shared library")
	Dynlink    = flag.Bool("dynlink", false, "support references to Go symbols defined in other shared libraries")
	Linkshared = flag.Bool("linkshared", false, "generate code that will be linked against Go shared libraries")

//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris

package main

// Test a shared library created by -buildmode=c-shared that does not
// export anything.

import (
	"fmt"
	"os"
	"syscall"
)

// To test this we want to communicate between the main program and
// the shared library without using any exported symbols.  The init
// function creates a pipe and Dups the read end to a known number

	-dynlink
		Support references to Go symbols defined in other shared libraries.
	-e
		No limit on number of errors reported.
	-gensymabis
		Write symbol ABI information to output file. Don't assemble.
	-o file
		Write output to file. The default is foo.o for /a/b/c/foo.s.
	-p pkgpath
		Set expected package import to pkgpath.
	-shared
		Generate code that can be linked into a shared library.
	-spectre list

			if i < 0 {
				// A degenerate case.
				// \\host.example.com (without a share name)
				// becomes
				// file://host.example.com/
				return &url.URL{
					Scheme: "file",
					Host:   path,
					Path:   "/",
				}, nil
			}

			// \\host.example.com\Share\path\to\file
			// becomes
			// file://host.example.com/Share/path/to/file
			return &url.URL{
				Scheme: "file",
				Host:   path[:i],

		if x, ok := x.Interface().(*Name); ok {
			p.printf("%s @ %v", x.Value, x.Pos())
			return
		}

		p.printf("*")
		// Fields may share type expressions, and declarations
		// may share the same group - use ptrmap to keep track
		// of nodes that have been printed already.
		if ptr, ok := x.Interface().(Node); ok {
			if line, exists := p.ptrmap[ptr]; exists {

// license that can be found in the LICENSE file.

// This file contains various functionality that is
// different between go/types and types2. Factoring
// out this code allows more of the rest of the code
// to be shared.

package types2

import (
	"cmd/compile/internal/syntax"
	"go/constant"
	"go/token"
)

const isTypes2 = true

// cmpPos compares the positions p and q and returns a result r as follows:
//

		// MOVV $sym+<off>, Rx becomes MOVV sym@GOT, Rx; ADD <off>, Rx
		if p.As != AMOVV {
			ctxt.Diag("do not know how to handle TYPE_ADDR in %v with -shared", p)
		}
		if p.To.Type != obj.TYPE_REG {
			ctxt.Diag("do not know how to handle LEAQ-type insn to non-register in %v with -shared", p)
		}
		p.From.Type = obj.TYPE_MEM
		p.From.Name = obj.NAME_GOTREF
		if p.From.Offset != 0 {
			q := obj.Appendp(p, newprog)