forked from OSchip/llvm-project
35c9baa11e
Introduce a function attribute 'enforce_tcb' that prevents the function from calling other functions without the same attribute. This allows isolating code that's considered to be somehow privileged so that it could not use its privileges to exhibit arbitrary behavior. Introduce an on-by-default warning '-Wtcb-enforcement' that warns about violations of the above rule. Introduce a function attribute 'enforce_tcb_leaf' that suppresses the new warning within the function it is attached to. Such leaf functions may implement common functionality between the trusted and the untrusted code but they require extra careful audit with respect to their capabilities. Fixes after a revert in 419ef38a50293c58078f830517f5e305068dbee6: Fix a test. Add workaround for GCC bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67274). Attribute the patch appropriately! Differential Revision: https://reviews.llvm.org/D91898 |
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| .. | ||
| INPUTS | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
| ModuleInfo.txt | ||
| NOTES.txt | ||
| README.txt | ||
README.txt
//===----------------------------------------------------------------------===// // C Language Family Front-end //===----------------------------------------------------------------------===// Welcome to Clang. This is a compiler front-end for the C family of languages (C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM compiler infrastructure project. Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer. If you're interested in more (including how to build Clang) it is best to read the relevant web sites. Here are some pointers: Information on Clang: http://clang.llvm.org/ Building and using Clang: http://clang.llvm.org/get_started.html Clang Static Analyzer: http://clang-analyzer.llvm.org/ Information on the LLVM project: http://llvm.org/ If you have questions or comments about Clang, a great place to discuss them is on the Clang development mailing list: http://lists.llvm.org/mailman/listinfo/cfe-dev If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/