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Author SHA1 Message Date
Evgeniy Stepanov fbc3da577c [cfi] Cross-DSO CFI diagnostic mode (LLVM part). 
* __cfi_check gets a 3rd argument: ubsan handler data
* Instead of trapping on failure, call __cfi_check_fail which must be
  present in the module (generated in the frontend).

llvm-svn: 258746
 2016-01-25 23:35:03 +00:00
Evgeniy Stepanov 67849d56c3 Cross-DSO control flow integrity (LLVM part). 
An LTO pass that generates a __cfi_check() function that validates a
call based on a hash of the call-site-known type and the target
pointer.

llvm-svn: 255693
 2015-12-15 23:00:08 +00:00