[PATCH] D19853: [safestack] Add -fruntime-init to support invoking functions during runtime init

[Michael LeMay via cfe-commits]

mlemay-intel created this revision.
mlemay-intel added reviewers: pcc, eugenis.
mlemay-intel added a subscriber: cfe-commits.

SafeStack uses thread-local storage by default in most OSes for the unsafe stack
pointer. For SafeStack to be applied to functions that may be invoked while
initializing the dynamic linker and libc, the functions can be compiled to
support a single-threaded unsafe stack pointer. This flag signals that such code
should be emitted.

http://reviews.llvm.org/D19853

Files:
  docs/CommandGuide/clang.rst
  include/clang/Basic/LangOptions.def
  include/clang/Driver/Options.td
  lib/CodeGen/CGDeclCXX.cpp
  lib/CodeGen/CodeGenFunction.cpp
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGen/runtime-init-attr.c

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