Commit Graph

6 Commits

Author SHA1 Message Date
Evgeniy Stepanov 226965259d [cfi] Cross-DSO CFI diagnostic mode (compiler-rt part)
* add __cfi_slowpath_diag with a 3rd parameter which is a pointer to
  the diagnostic info for the ubsan handlers.
*__cfi_check gets a 3rd parameter as well.
* unify vcall/cast/etc and icall diagnostic info format, and merge
  the handlers to have a single entry point (actually two points due
  to abort/noabort variants).
* tests

Note that this comes with a tiny overhead in the non-diag mode:
cfi_slowpath must pass 0 as the 3rd argument to cfi_check.

llvm-svn: 258744
2016-01-25 23:34:38 +00:00
Peter Collingbourne 175d633271 Add control flow integrity diagnosis function to UBSan runtime library.
Also includes execution tests for the feature.

Differential Revision: http://reviews.llvm.org/D10269

llvm-svn: 240111
2015-06-19 01:52:55 +00:00
Will Dietz ad5180d774 [ubsan] Move attribute specifier to fix build with gcc.
llvm-svn: 172078
2013-01-10 17:01:13 +00:00
Will Dietz e4b1d2e32c [ubsan] Give entry methods default (not hidden) visibility.
Fixes using ubsan on shared libraries in linux, for example.

llvm-svn: 172041
2013-01-10 03:37:30 +00:00
Will Dietz 2c36c71f5b [ubsan] Refactor handlers to have separate entry points for aborting.
If user specifies aborting after a recoverable failed check is
appropriate, frontend should emit call to the _abort variant.

Test this behavior with newly added -fsanitize-recover flag.

llvm-svn: 169113
2012-12-02 19:47:29 +00:00
Richard Smith 2f0d7d564c -fcatch-undefined-behavior checking for appropriate vptr value: library side.
llvm-svn: 166660
2012-10-25 02:07:02 +00:00