| Value | Meaning |
|---|---|
| SECTION_ATTRIBUTES_USR | User setable attributes. |
| S_ATTR_PURE_INSTRUCTIONS | Section contains only true machine instructions. |
| S_ATTR_NO_TOC | Section contains coalesced symbols that are not to be in a ranlib table of contents. |
| S_ATTR_STRIP_STATIC_SYMS | Ok to strip static symbols in this section in files with the MH_DYLDLINK flag. |
| S_ATTR_NO_DEAD_STRIP | No dead stripping. |
| S_ATTR_LIVE_SUPPORT | Blocks are live if they reference live blocks. |
| S_ATTR_SELF_MODIFYING_CODE | Used with i386 code stubs written on by dyld. |
| S_ATTR_DEBUG | A debug section. If a segment contains any sections marked with S_ATTR_DEBUG then all sections in that segment must have this attribute. No section other than a section marked with this attribute may reference the contents of this section. A section with this attribute may contain no symbols and must have a section type S_REGULAR. The static linker will not copy section contents from sections with this attribute into its output file. These sections generally contain DWARF debugging info. |
| SECTION_ATTRIBUTES_SYS | System setable attributes. |
| S_ATTR_SOME_INSTRUCTIONS | Section contains some machine instructions. |
| S_ATTR_EXT_RELOC | Section has external relocation entries. |
| S_ATTR_LOC_RELOC | Section has local relocation entries. |
Constants for the section attributes part of the flags field of a section structure.