+ If referring to a repo other than `golang/go` you can use the
  `owner/repo#issue_number` syntax: `Fixes golang/tools#1234`
+ We do not use Signed-off-by lines in Go. Please don't add them.
  Our Gerrit server & GitHub bots enforce CLA compliance instead.

implementation must:
</p>

<ul>
	<li>Represent integer constants with at least 256 bits.</li>

	<li>Represent floating-point constants, including the parts of
	    a complex constant, with a mantissa of at least 256 bits
	    and a signed binary exponent of at least 16 bits.</li>

	<li>Give an error if unable to represent an integer constant
	    precisely.</li>

must support both internal and external linking, depending on the
circumstances: if net is the only cgo-using package, then internal
linking is probably fine, but if other packages are involved, so that there
are dependencies on libraries beyond libc, external linking is likely
to work better. The compilation of a package records the relevant
information to support both linking modes, leaving the decision

		// Corrupt foo.txt's final crc32 byte, in both
		// the file header and TOC. (0x7e -> 0x7f)
		b[0x11]++
		b[0x9d]++

		// TODO(bradfitz): add a new test that only corrupts
		// one of these values, and verify that that's also an
		// error. Currently, the reader code doesn't verify the
		// fileheader and TOC's crc32 match if they're both
		// non-zero and only the second line above, the TOC,

		done := 0
		reader := testReader{input, stride}
		l := NewReaderSize(&reader, len(input)+1)
		for {
			line, isPrefix, err := l.ReadLine()
			if len(line) > 0 && err != nil {
				t.Errorf("ReadLine returned both data and error: %s", err)
			}
			if isPrefix {
				t.Errorf("ReadLine returned prefix")
			}
			if err != nil {
				if err != io.EOF {
					t.Fatalf("Got unknown error: %s", err)
				}
				break

pkg syscall (openbsd-386), type Dirent struct, Fileno uint64
pkg syscall (openbsd-386), type Dirent struct, Off int64
pkg syscall (openbsd-386), type Dirent struct, X__d_padding [4]uint8
pkg syscall (openbsd-386), type FdSet struct, Bits [32]uint32
pkg syscall (openbsd-386), type Kevent_t struct, Data int64
pkg syscall (openbsd-386), type Mclpool struct, Grown int32
pkg syscall (openbsd-386), type RtMetrics struct, Expire int64

	SHA256MSG2 X11, X2       // 410f38cdd3
	SHA256MSG2 (BX), X11     // 440f38cd1b
	SHA256MSG2 (R11), X11    // 450f38cd1b
	SHA256MSG2 X2, X11       // 440f38cdda
	SHA256MSG2 X11, X11      // 450f38cddb
	// Test VPERMQ with both uint8 and int8 immediate args
	VPERMQ $-40, Y8, Y8 // c443fd00c0d8
	VPERMQ $216, Y8, Y8 // c443fd00c0d8
	// Test that VPERMPD that shares ytab list with VPERMQ continues to work too.
	VPERMPD $-40, Y7, Y7 // c4e3fd01ffd8

pkg syscall (netbsd-arm64-cgo), type Dirent struct, Reclen uint16
pkg syscall (netbsd-arm64-cgo), type Dirent struct, Type uint8
pkg syscall (netbsd-arm64-cgo), type FdSet struct
pkg syscall (netbsd-arm64-cgo), type FdSet struct, Bits [8]uint32
pkg syscall (netbsd-arm64-cgo), type Flock_t struct
pkg syscall (netbsd-arm64-cgo), type Flock_t struct, Len int64
pkg syscall (netbsd-arm64-cgo), type Flock_t struct, Pid int32

	if cond == "" {
		return true
	}
	bits, ok := ParseARMCondition(cond)
	if !ok {
		return false
	}
	/* hack to make B.NE etc. work: turn it into the corresponding conditional */
	if prog.As == arm.AB {
		prog.As = bcode[(bits^arm.C_SCOND_XOR)&0xf]
		bits = (bits &^ 0xf) | arm.C_SCOND_NONE
	}
	prog.Scond = bits
	return true
}

		return path.Base(path.Clean(fi.h.Name))
	}
	return path.Base(fi.h.Name)
}

// Mode returns the permission and mode bits for the headerFileInfo.
func (fi headerFileInfo) Mode() (mode fs.FileMode) {
	// Set file permission bits.
	mode = fs.FileMode(fi.h.Mode).Perm()

	// Set setuid, setgid and sticky bits.
	if fi.h.Mode&c_ISUID != 0 {
		mode |= fs.ModeSetuid
	}
	if fi.h.Mode&c_ISGID != 0 {
		mode |= fs.ModeSetgid