id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	lang	patch	platform
359	enable UUID for pbc	rurban		"With r36890 I've enabled UUID stamping of pbc's for the t/native_pbc/ tests. tools/dev/pbc_header.pl --upd works now again.

In order to enable UUID's (uuid_type=1) for all PBC's I plan the following:

  - read the UUID, the md5 fingerprint of PBC_COMPAT with Parrot::BuildUtils::generate_pbc_fingerprint() at Configure.pl

  - uuid_size = 12, so that the new padding in the header will be 2 instead of 14 and the header size before the directory stay the same.

  - store the pbc_fingerprint as PBC_UUID in config.h for packfile.c

  - write every pbc with this UUID

  - check the UUID when reading pbc's and warn 
    when reading incompatible PBC's, different UUID's.

  - error on reading newer bytecode versions, 
    allow reading older versions. That was the original 
    intention at least.
 
"	todo	new	normal	2.6	core		medium