All symbols starting with `e' in iokit/IOKit/storage/ata

• echo iokit/IOKit/storage/ata/Makefile:40
• EXCLUDE_HEADERS iokit/IOKit/storage/ata/Makefile:24
• EXPORT_MI_DIR iokit/IOKit/storage/ata/Makefile:42
• expr iokit/IOKit/storage/ata/Makefile:43