diff options
Diffstat (limited to 'src/cmd/vendor/golang.org/x/arch/x86/x86asm/xedext_test.go')
| -rw-r--r-- | src/cmd/vendor/golang.org/x/arch/x86/x86asm/xedext_test.go | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/src/cmd/vendor/golang.org/x/arch/x86/x86asm/xedext_test.go b/src/cmd/vendor/golang.org/x/arch/x86/x86asm/xedext_test.go deleted file mode 100644 index e27cdc07c4..0000000000 --- a/src/cmd/vendor/golang.org/x/arch/x86/x86asm/xedext_test.go +++ /dev/null @@ -1,205 +0,0 @@ -package x86asm - -import ( - "bytes" - "fmt" - "io" - "log" - "os" - "strconv" - "strings" - "testing" -) - -// xed binary from Intel sde-external-6.22.0-2014-03-06. -const xedPath = "/Users/rsc/bin/xed" - -func testXedArch(t *testing.T, arch int, generate func(func([]byte))) { - if testing.Short() { - t.Skip("skipping xed test in short mode") - } - if _, err := os.Stat(xedPath); err != nil { - t.Skip(err) - } - - testExtDis(t, "intel", arch, xed, generate, allowedMismatchXed) -} - -func testXed32(t *testing.T, generate func(func([]byte))) { - testXedArch(t, 32, generate) -} - -func testXed64(t *testing.T, generate func(func([]byte))) { - testXedArch(t, 64, generate) -} - -func xed(ext *ExtDis) error { - b, err := ext.Run(xedPath, fmt.Sprintf("-%d", ext.Arch), "-n", "1G", "-ir", ext.File.Name()) - if err != nil { - return err - } - - nmatch := 0 - next := uint32(start) - var ( - addr uint32 - encbuf [32]byte - enc []byte - text string - ) - - var xedEnd = []byte("# end of text section") - var xedEnd1 = []byte("# Errors") - - eof := false - for { - line, err := b.ReadSlice('\n') - if err != nil { - if err == io.EOF { - break - } - return fmt.Errorf("reading objdump output: %v", err) - } - if debug { - os.Stdout.Write(line) - } - if bytes.HasPrefix(line, xedEnd) || bytes.HasPrefix(line, xedEnd1) { - eof = true - } - if eof { - continue - } - nmatch++ - addr, enc, text = parseLineXed(line, encbuf[:0]) - if addr > next { - return fmt.Errorf("address out of sync expected <= %#x at %q in:\n%s", next, line, line) - } - if addr < next { - continue - } - switch text { - case "repz": - text = "rep" - case "repnz": - text = "repn" - default: - text = strings.Replace(text, "repz ", "rep ", -1) - text = strings.Replace(text, "repnz ", "repn ", -1) - } - if m := pcrelw.FindStringSubmatch(text); m != nil { - targ, _ := strconv.ParseUint(m[2], 16, 64) - text = fmt.Sprintf("%s .%+#x", m[1], int16(uint32(targ)-uint32(uint16(addr))-uint32(len(enc)))) - } - if m := pcrel.FindStringSubmatch(text); m != nil { - targ, _ := strconv.ParseUint(m[2], 16, 64) - text = fmt.Sprintf("%s .%+#x", m[1], int32(uint32(targ)-addr-uint32(len(enc)))) - } - ext.Dec <- ExtInst{addr, encbuf, len(enc), text} - encbuf = [32]byte{} - enc = nil - next += 32 - } - if next != start+uint32(ext.Size) { - return fmt.Errorf("not enough results found [%d %d]", next, start+ext.Size) - } - if err := ext.Wait(); err != nil { - return fmt.Errorf("exec: %v", err) - } - - return nil -} - -var ( - xedInRaw = []byte("In raw...") - xedDots = []byte("...") - xdis = []byte("XDIS ") - xedError = []byte("ERROR: ") - xedNoDecode = []byte("Could not decode at offset: 0x") -) - -func parseLineXed(line []byte, encstart []byte) (addr uint32, enc []byte, text string) { - oline := line - if bytes.HasPrefix(line, xedInRaw) || bytes.HasPrefix(line, xedDots) { - return 0, nil, "" - } - if bytes.HasPrefix(line, xedError) { - i := bytes.IndexByte(line[len(xedError):], ' ') - if i < 0 { - log.Fatalf("cannot parse error: %q", oline) - } - errstr := string(line[len(xedError):]) - i = bytes.Index(line, xedNoDecode) - if i < 0 { - log.Fatalf("cannot parse error: %q", oline) - } - i += len(xedNoDecode) - j := bytes.IndexByte(line[i:], ' ') - if j < 0 { - log.Fatalf("cannot parse error: %q", oline) - } - x, err := strconv.ParseUint(string(trimSpace(line[i:i+j])), 16, 32) - if err != nil { - log.Fatalf("cannot parse disassembly: %q", oline) - } - addr = uint32(x) - return addr, nil, errstr - } - - if !bytes.HasPrefix(line, xdis) { - log.Fatalf("cannot parse disassembly: %q", oline) - } - - i := bytes.IndexByte(line, ':') - if i < 0 { - log.Fatalf("cannot parse disassembly: %q", oline) - } - x, err := strconv.ParseUint(string(trimSpace(line[len(xdis):i])), 16, 32) - if err != nil { - log.Fatalf("cannot parse disassembly: %q", oline) - } - addr = uint32(x) - - // spaces - i++ - for i < len(line) && line[i] == ' ' { - i++ - } - // instruction class, spaces - for i < len(line) && line[i] != ' ' { - i++ - } - for i < len(line) && line[i] == ' ' { - i++ - } - // instruction set, spaces - for i < len(line) && line[i] != ' ' { - i++ - } - for i < len(line) && line[i] == ' ' { - i++ - } - - // hex - hexStart := i - for i < len(line) && line[i] != ' ' { - i++ - } - hexEnd := i - for i < len(line) && line[i] == ' ' { - i++ - } - - // text - textStart := i - for i < len(line) && line[i] != '\n' { - i++ - } - textEnd := i - - enc, ok := parseHex(line[hexStart:hexEnd], encstart) - if !ok { - log.Fatalf("cannot parse disassembly: %q", oline) - } - - return addr, enc, string(fixSpace(line[textStart:textEnd])) -} |