> On Jun 7, 2019, at 2:09 PM, Dave Hansen <dave.hansen@xxxxxxxxx> wrote: > > On 6/7/19 1:06 PM, Yu-cheng Yu wrote: >>> Huh, how does glibc know about all possible past and future legacy code >>> in the application? >> When dlopen() gets a legacy binary and the policy allows that, it will manage >> the bitmap: >> >> If a bitmap has not been created, create one. >> Set bits for the legacy code being loaded. > > I was thinking about code that doesn't go through GLIBC like JITs. CRIU is another consideration: it would be rather annoying if CET programs can’t migrate between LA57 and normal machines.
