forked from OSchip/llvm-project
6fab274275
indirect branch tracking(IBT) feature aiming to ensure the target address of an indirect jump/call is not tampered. When IBT is enabled, each function or target of any indirect jump/call will start with an 'endbr32/64' instruction otherwise the program will crash during execution. To build an application with CET enabled. we need to ensure: 1. build the source code with "-fcf-protection=full" 2. all the libraries linked with .o files must be CET enabled too This patch aims to enable CET for compiler-rt builtins library, we add an option "COMPILER_RT_ENABLE_CET" whose default value is OFF to enable CET for compiler-rt in building time and when this option is "ON", "-fcf-protection=full" is added to BUILTINS_CFLAG and the "endbr32/64" will be placed in the beginning of each assembly function. We also enabled CET for crtbegin, crtend object files in this patch. Reviewed by: MaskRay, compnerd, manojgupta, efriedma Differential Revision: https://reviews.llvm.org/D109811 Signed-off-by: jinge90 <ge.jin@intel.com> |
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| .. | ||
| cmake | ||
| docs | ||
| include | ||
| lib | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| README.txt | ||
README.txt
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================