flag.StringVar(&t.runRxStr, "run", "",
		"run only those tests matching the regular expression; empty means to run all. "+
			"Special exception: if the string begins with '!', the match is inverted.")
	flag.BoolVar(&t.msan, "msan", false, "run in memory sanitizer builder mode")
	flag.BoolVar(&t.asan, "asan", false, "run in address sanitizer builder mode")

		start, end := tm.ZoneBounds()
		if !(start.IsZero() && end.IsZero()) {
			t.Errorf("ZoneBounds of %+v expects two zero Time, got:\n  start=%v\n  end=%v", *golden, start, end)
		}
	}

	// If the zone begins at the beginning of time, start will be returned as a zero Time.
	// Use math.MinInt32 to avoid overflow of int arguments on 32-bit systems.
	beginTime := Date(math.MinInt32, January, 1, 0, 0, 0, 0, loc)

 * SUCH DAMAGE.
 *
 */

/*
 * ELF definitions that are independent of architecture or word size.
 */

/*
 * Note header.  The ".note" section contains an array of notes.  Each
 * begins with this header, aligned to a word boundary.  Immediately
 * following the note header is n_namesz bytes of name, padded to the
 * next word boundary.  Then comes n_descsz bytes of descriptor, again

     * characters in addition to the normal filename characters. The '*'
     * character matches any number of characters in part of a name. If
     * the expression begins with one or more '?'s then exactly that
     * many characters will be matched whereas if it ends with '?'s
     * it will match that many characters <i>or less</i>.
     * <p>

		// to inspect the old stack memory, which may no longer be valid.
		// Even if all the variables were updated correctly, it is not clear that
		// we want to expose a traceback that begins on one stack and ends
		// on another stack. That could confuse callers quite a bit.
		// Instead, we require that initAt and any other function that
		// accepts an sp for the current goroutine (typically obtained by

}

func isDwarf64(ctxt *Link) bool {
	return ctxt.HeadType == objabi.Haix
}

// https://sourceware.org/gdb/onlinedocs/gdb/dotdebug_005fgdb_005fscripts-section.html
// Each entry inside .debug_gdb_scripts section begins with a non-null prefix
// byte that specifies the kind of entry. The following entries are supported:
const (
	GdbScriptPythonFileId = 1
	GdbScriptSchemeFileId = 3
	GdbScriptPythonTextId = 4

func Lstat(path string, stat *Stat_t) (err error) {
	var statLE Stat_LE_t
	err = lstat(path, &statLE)
	copyStat(stat, &statLE)
	return
}

// for checking symlinks begins with $VERSION/ $SYSNAME/ $SYSSYMR/ $SYSSYMA/
func isSpecialPath(path []byte) (v bool) {
	var special = [4][8]byte{
		[8]byte{'V', 'E', 'R', 'S', 'I', 'O', 'N', '/'},
		[8]byte{'S', 'Y', 'S', 'N', 'A', 'M', 'E', '/'},

		}
		StopCPUProfile()

		// Read profile to look for entries for gogo with an attempt at a traceback.
		// "runtime.gogo" is OK, because that's the part of the context switch
		// before the actual switch begins. But we should not see "gogo",
		// aka "gogo<>(SB)", which does the actual switch and is marked SPWRITE.
		parseProfile(t, prof.Bytes(), func(count uintptr, stk []*profile.Location, _ map[string][]string) {

			// p.Internal.Cover.GenMeta will wind up being set for
			// all matching packages.
			if len(p.TestGoFiles)+len(p.XTestGoFiles) == 0 &&
				cfg.BuildCoverPkg == nil &&
				cfg.Experiment.CoverageRedesign {
				p.Internal.Cover.GenMeta = true
			}
		}
	}

	// Prepare build + run + print actions for all packages being tested.
	for _, p := range pkgs {

// statistically robust A/B comparisons.
//
// # Examples
//
// The package also runs and verifies example code. Example functions may
// include a concluding line comment that begins with "Output:" and is compared with
// the standard output of the function when the tests are run. (The comparison
// ignores leading and trailing space.) These are examples of an example:
//
//	func ExampleHello() {