fix: Update SepSegmentCmd to SepCacheSlideCmd for LC_SEP_CACHE_SLIDE

cmds.go

@@ -2252,27 +2252,54 @@ type AtomInfo struct {
 }
 
 /*******************************************************************************
- * LC_SEP_SEGMENT
+ * LC_SEP_CACHE_SLIDE
  *******************************************************************************/
 
-type SepSegment struct {
-	LinkEditData
+type SepCacheSlide struct {
+	LoadBytes
+	types.SepCacheSlideCmd
+}
+
+func (l *SepCacheSlide) LoadSize() uint32 {
+	return uint32(binary.Size(l.SepCacheSlideCmd))
+}
+func (l *SepCacheSlide) Write(buf *bytes.Buffer, o binary.ByteOrder) error {
+	if err := binary.Write(buf, o, l.SepCacheSlideCmd); err != nil {
+		return fmt.Errorf("failed to write %s to buffer: %v", l.Command(), err)
+	}
+	return nil
+}
+func (l *SepCacheSlide) String() string {
+	return fmt.Sprintf("slide=0x%09x", (l.Offset&0xFFFFF)-0x8000)
+}
+func (l *SepCacheSlide) MarshalJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		LoadCmd string `json:"load_cmd"`
+		Len     uint32 `json:"length"`
+		Offset  uint32 `json:"offset"`
+		Size    uint32 `json:"size"`
+	}{
+		LoadCmd: l.Command().String(),
+		Len:     l.Len,
+		Offset:  l.Offset,
+		Size:    l.Size,
+	})
 }
 
 /*******************************************************************************
- * LC_SEP_SYMTAB
+ * LC_SEP_UNKNOWN_2
  *******************************************************************************/
 
-type SepSymtab struct {
-	Symtab
+type SepUnknown2 struct {
+	LinkEditData
 }
 
 /*******************************************************************************
- * LC_SEP_SYMSEG
+ * LC_SEP_UNKNOWN_3
  *******************************************************************************/
 
-type SepSymseg struct {
-	SymSeg
+type SepUnknown3 struct {
+	LinkEditData
 }
 
 /*******************************************************************************

file.go

@@ -1257,42 +1257,39 @@ func NewFile(r io.ReaderAt, config ...FileConfig) (*File, error) {
 			l.Offset = led.Offset
 			l.Size = led.Size
 			f.Loads = append(f.Loads, l)
-		case types.LC_SEP_SEGMENT:
+		case types.LC_SEP_CACHE_SLIDE:
 			var led types.LinkEditDataCmd
 			b := bytes.NewReader(cmddat)
 			if err := binary.Read(b, bo, &led); err != nil {
-				return nil, fmt.Errorf("failed to read LC_SEP_SEGMENT: %v", err)
+				return nil, fmt.Errorf("failed to read LC_SEP_CACHE_SLIDE: %v", err)
 			}
-			l := new(SepSegment)
+			l := new(SepCacheSlide)
 			l.LoadBytes = cmddat
 			l.LoadCmd = cmd
 			l.Len = siz
 			l.Offset = led.Offset
 			l.Size = led.Size
 			f.Loads = append(f.Loads, l)
-		case types.LC_SEP_SYMTAB:
-			var hdr types.SepSymtabCmd
+		case types.LC_SEP_UNKNOWN_2:
+			var led types.SepUnknown2Cmd
 			b := bytes.NewReader(cmddat)
-			if err := binary.Read(b, bo, &hdr); err != nil {
-				return nil, fmt.Errorf("failed to read LC_SEP_SYMTAB: %v", err)
+			if err := binary.Read(b, bo, &led); err != nil {
+				return nil, fmt.Errorf("failed to read LC_SEP_UNKNOWN_2: %v", err)
 			}
-			l := new(SepSymtab)
+			l := new(SepUnknown2)
 			l.LoadBytes = cmddat
 			l.LoadCmd = cmd
 			l.Len = siz
-			l.Nsyms = uint32(hdr.Nsyms)
-			l.Symoff = uint32(hdr.Symoff)
-			l.Stroff = uint32(hdr.Stroff)
-			l.Strsize = uint32(hdr.Strsize)
+			l.Offset = led.Offset
+			l.Size = led.Size
 			f.Loads = append(f.Loads, l)
-		case types.LC_SEP_SYMSEG:
-			var led types.SymsegCmd
+		case types.LC_SEP_UNKNOWN_3:
+			var led types.SepUnknown3Cmd
 			b := bytes.NewReader(cmddat)
 			if err := binary.Read(b, bo, &led); err != nil {
 				return nil, fmt.Errorf("failed to read LC_SEP_SYMSEG: %v", err)
 			}
-
-			l := new(SepSymseg)
+			l := new(SepUnknown3)
 			l.LoadBytes = cmddat
 			l.LoadCmd = cmd
 			l.Len = siz

types/commands.go

@@ -78,9 +78,9 @@ const (
 	/*
 	 * sep load commands
 	 */
-	LC_SEP_SEGMENT LoadCmd = (LC_SEGMENT | LC_SEP)
-	LC_SEP_SYMTAB  LoadCmd = (LC_SYMTAB | LC_SEP)
-	LC_SEP_SYMSEG  LoadCmd = (LC_SYMSEG | LC_SEP)
+	LC_SEP_CACHE_SLIDE LoadCmd = (0x1 | LC_SEP)
+	LC_SEP_UNKNOWN_2   LoadCmd = (0x2 | LC_SEP)
+	LC_SEP_UNKNOWN_3   LoadCmd = (0x3 | LC_SEP)
 )
 
 type SegFlag uint32
@@ -1190,7 +1190,9 @@ type FilesetEntryCmd struct {
 	Reserved      uint32 // reserved
 }
 
-type SepSegmentCmd LinkEditDataCmd // LC_SEP_SEG
+type SepCacheSlideCmd LinkEditDataCmd // LC_SEP_CACHE_SLIDE
+type SepUnknown2Cmd LinkEditDataCmd   // LC_SEP_UNKNOWN_2
+type SepUnknown3Cmd LinkEditDataCmd   // LC_SEP_UNKNOWN_3
 
 type SepSymtabCmd struct {
 	LoadCmd        // LC_SEP_SYMTAB