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Oren Ben Simhon 40090f420c Control-Flow Enforcement Technology - Shadow Stack support (LLVM side) 
Shadow stack solution introduces a new stack for return addresses only.
The HW has a Shadow Stack Pointer (SSP) that points to the next return address.
If we return to a different address, an exception is triggered.
The shadow stack is managed using a series of intrinsics that are introduced in this patch as well as the new register (SSP).
The intrinsics are mapped to new instruction set that implements CET mechanism.

The patch also includes initial infrastructure support for IBT.

For more information, please see the following:
https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf

Differential Revision: https://reviews.llvm.org/D40223

Change-Id: I4daa1f27e88176be79a4ac3b4cd26a459e88fed4

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318996 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-26 13:02:45 +00:00
bindings Update go bindings to use new functions from rL317135. 2017-11-02 10:22:26 +00:00
cmake [CMake] Allow for Solaris ld -V output on stdout 2017-11-17 17:12:14 +00:00
docs [LV] Model masking in VPlan, introducing VPInstructions 2017-11-20 12:01:47 +00:00
examples Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
include Control-Flow Enforcement Technology - Shadow Stack support (LLVM side) 2017-11-26 13:02:45 +00:00
lib Control-Flow Enforcement Technology - Shadow Stack support (LLVM side) 2017-11-26 13:02:45 +00:00
projects Re-revert "Refactor debuginfo-tests." 2017-11-21 01:20:28 +00:00
resources
runtimes [CMake][runtimes] Don't passthrough prefixes for non-default targets 2017-11-17 23:51:53 +00:00
test Control-Flow Enforcement Technology - Shadow Stack support (LLVM side) 2017-11-26 13:02:45 +00:00
tools Remove unnecessary code. 2017-11-22 20:02:57 +00:00
unittests [YAMLParser] Don't crash on null keys in KeyValueNodes. 2017-11-23 20:57:20 +00:00
utils Reverted rL318911 since it broke the sanitizer-windows. 2017-11-23 13:23:21 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitattributes [MC] Fix regression tests on Windows when git “core.autocrlf” is set to true. 2017-11-17 21:59:43 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Re-revert "Refactor debuginfo-tests." 2017-11-21 01:20:28 +00:00
CODE_OWNERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Add myself to CREDITS.txt 2017-09-18 14:33:39 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.