[PATCH] D15367: Cross-DSO control flow integrity (Clang part)

[Evgeniy Stepanov via cfe-commits]

eugenis created this revision.
eugenis added reviewers: kcc, pcc.
eugenis added a subscriber: cfe-commits.
eugenis set the repository for this revision to rL LLVM.

Clang-side cross-DSO CFI.
* Enabled with -fsanitize-cfi-cross-dso
* uses a runtime library, unlike "plain" CFI
* does not yet support diagnostics
* Emits __cfi_slowpath calls if bitset test fails. This routes the check to the target module, which may know more about the runtime type of the object or function.
* Set a module flag to enable __cfi_check generation during LTO.


Repository:
  rL LLVM

http://reviews.llvm.org/D15367

Files:
  include/clang/Driver/Options.td
  include/clang/Driver/SanitizerArgs.h
  include/clang/Frontend/CodeGenOptions.def
  lib/CodeGen/CGClass.cpp
  lib/CodeGen/CGExpr.cpp
  lib/CodeGen/CodeGenFunction.h
  lib/CodeGen/CodeGenModule.cpp
  lib/CodeGen/CodeGenModule.h
  lib/Driver/SanitizerArgs.cpp
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGen/cfi-icall-cross-dso.c
  test/CodeGenCXX/cfi-cross-dso.cpp
  test/Driver/fsanitize.c
  test/Driver/sanitizer-ld.c

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