dsc (shared-cache strings)

Files in /private/var/db/uuidtext/dsc holding the format strings of the dyld shared cache, used by most Apple framework log messages.

Most Apple frameworks are loaded from the dyld shared cache, so their format strings are not in per-binary uuidtext files but in dsc files under /private/var/db/uuidtext/dsc/, named after the shared cache's 32-hex-digit UUID. A dsc file starts with the signature hcsd, maps address ranges to strings and lists the images (frameworks and libraries) in the cache.

The files are large (often over 100 MB each) and are included in a .logarchive.