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3 Commits

Author SHA1 Message Date
Peter Collingbourne 8dd14da0dc CodeGen: Update Clang to use the new type metadata. 
Differential Revision: http://reviews.llvm.org/D21054

llvm-svn: 273730
 2016-06-24 21:21:46 +00:00
Evgeniy Stepanov 3fd61df186 [cfi] Cross-DSO CFI diagnostic mode (clang part) 
* Runtime diagnostic data for cfi-icall changed to match the rest of
  cfi checks
* Layout of all CFI diagnostic data changed to put Kind at the
  beginning. There is no ABI stability promise yet.
* Call cfi_slowpath_diag instead of cfi_slowpath when needed.
* Emit __cfi_check_fail function, which dispatches a CFI check
  faliure according to trap/recover settings of the current module.
* A tiny driver change to match the way the new handlers are done in
  compiler-rt.

llvm-svn: 258745
 2016-01-25 23:34:52 +00:00
Evgeniy Stepanov fd6f92d5cb Cross-DSO control flow integrity (Clang part). 
Clang-side cross-DSO CFI.

* Adds a command line flag -f[no-]sanitize-cfi-cross-dso.
* Links a runtime library when enabled.
* Emits __cfi_slowpath calls is bitset test fails.
* Emits extra hash-based bitsets for external CFI checks.
* Sets a module flag to enable __cfi_check generation during LTO.

This mode does not yet support diagnostics.

llvm-svn: 255694
 2015-12-15 23:00:20 +00:00