forked from OSchip/llvm-project
7ed8124d46
See RFC for background: http://lists.llvm.org/pipermail/llvm-dev/2020-June/142744.html Note that the runtime changes will be sent separately (hopefully this week, need to add some tests). This patch includes the LLVM pass to instrument memory accesses with either inline sequences to increment the access count in the shadow location, or alternatively to call into the runtime. It also changes calls to memset/memcpy/memmove to the equivalent runtime version. The pass is modeled on the address sanitizer pass. The clang changes add the driver option to invoke the new pass, and to link with the upcoming heap profiling runtime libraries. Currently there is no attempt to optimize the instrumentation, e.g. to aggregate updates to the same memory allocation. That will be implemented as follow on work. Differential Revision: https://reviews.llvm.org/D85948 |
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| 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/