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.