PR9931: generate log to help diagnosing occasional cache hash collisions

Ideas from Frank Ch. Eigler:
- extending the hash.add() function to pass names along with the
  hash-mix values, so that class hash can internally track the
  hash-report string
- storing the reports themselves in the cache, beside the .ko / .c
  files, and changing the cache-size-limit logic to delete
  these .txt files upon garbage collection

* hash.h : New member parm_stream.
* hash.cxx (get_parms): New function to convert parms stream to string.
  (hash::add): Aggregrate parms stream.
  (create_hash_log): New function to log hash operation.
  (find_*_hash): Log hash at the end of function.
* cache.cxx (clean_cache): Remove log when cache reaches limitation.

0 files changed, 0 insertions, 0 deletions