K 10
svn:author
V 8
jhibbits
K 8
svn:date
V 27
2018-11-19T23:54:49.303849Z
K 7
svn:log
V 519
powerpc: Sync icache on SIGILL, in case of cache issues

The update of jemalloc to 5.1.0 exposed a cache syncing issue on a Freescale
e500 base system.  There was already code in the FPU emulator to address
this, but it was limited to a single static variable, and did not attempt to
sync the cache.  This pulls that out to the higher level program exception
handler, and syncs the cache.

If a SIGILL is hit a second time at the same address, it will be treated as
a real illegal instruction, and handled accordingly.

END