standard library in the src/vendor and src/cmd/vendor directories.

There are two modules, std and cmd, defined in src/go.mod and
src/cmd/go.mod. When a package outside std or cmd is imported
by a package inside std or cmd, the import path is interpreted
as if it had a "vendor/" prefix. For example, within "crypto/tls",
an import of "golang.org/x/crypto/cryptobyte" resolves to
"vendor/golang.org/x/crypto/cryptobyte". When a package with the

import (
	"bytes"
	"io"
	"testing"
)

func FuzzReader(f *testing.F) {
	b := bytes.NewBuffer(nil)
	w := NewWriter(b)

	// Deprecated: Use PAXRecords instead.
	Xattrs map[string]string

	// PAXRecords is a map of PAX extended header records.
	//
	// User-defined records should have keys of the following form:
	//	VENDOR.keyword
	// Where VENDOR is some namespace in all uppercase, and keyword may
	// not contain the '=' character (e.g., "GOLANG.pkg.version").
	// The key and value should be non-empty UTF-8 strings.
	//

pkg syscall (freebsd-arm64), const SO_USER_COOKIE = 4117
pkg syscall (freebsd-arm64), const SO_USER_COOKIE ideal-int
pkg syscall (freebsd-arm64), const SO_VENDOR = 2147483648
pkg syscall (freebsd-arm64), const SO_VENDOR ideal-int
pkg syscall (freebsd-arm64), const SOCK_CLOEXEC = 268435456
pkg syscall (freebsd-arm64), const SOCK_CLOEXEC ideal-int
pkg syscall (freebsd-arm64), const SOCK_MAXADDRLEN = 255

pkg syscall (freebsd-riscv64), const SO_USER_COOKIE = 4117 #53466
pkg syscall (freebsd-riscv64), const SO_USER_COOKIE ideal-int #53466
pkg syscall (freebsd-riscv64), const SO_VENDOR = 2147483648 #53466
pkg syscall (freebsd-riscv64), const SO_VENDOR ideal-int #53466
pkg syscall (freebsd-riscv64), const SYS_ABORT2 = 463 #53466
pkg syscall (freebsd-riscv64), const SYS_ABORT2 ideal-int #53466

pkg syscall (darwin-386), const ENOMSG = 91
pkg syscall (darwin-386), const ENOPOLICY = 103
pkg syscall (darwin-386), const ENOPROTOOPT = 42
pkg syscall (darwin-386), const ENOSPC = 28
pkg syscall (darwin-386), const ENOSR = 98
pkg syscall (darwin-386), const ENOSTR = 99
pkg syscall (darwin-386), const ENOSYS = 78
pkg syscall (darwin-386), const ENOTBLK = 15
pkg syscall (darwin-386), const ENOTCONN = 57

See src/README.vendor for information on loading vendored packages

pkg syscall (linux-arm-cgo), const ENOMEDIUM Errno
pkg syscall (linux-arm-cgo), const ENONET Errno
pkg syscall (linux-arm-cgo), const ENOPKG Errno
pkg syscall (linux-arm-cgo), const ENOSR Errno
pkg syscall (linux-arm-cgo), const ENOSTR Errno
pkg syscall (linux-arm-cgo), const ENOTNAM Errno
pkg syscall (linux-arm-cgo), const ENOTRECOVERABLE Errno
pkg syscall (linux-arm-cgo), const ENOTUNIQ Errno