| Value | Meaning |
|---|---|
| SG_HIGHVM | The file contents for this segment is for the high part of the VM space, the low part is zero filled (for stacks in core files). |
| SG_FVMLIB | This segment is the VM that is allocated by a fixed VM library, for overlap checking in the link editor. |
| SG_NORELOC | This segment has nothing that was relocated in it and nothing relocated to it, that is it maybe safely replaced without relocation. |
| SG_PROTECTED_VERSION_1 | This segment is protected. If the segment starts at file offset 0, the first page of the segment is not protected. All other pages of the segment are protected. |
| SG_READ_ONLY | This segment is made read-only after fixups. |
Constants for the flags field of the segment_command.