2f8eb5b4be
Compiler-synthesized functions such as `__llvm_gcov_writeout`, `__llvm_gcov_reset` and `__llvm_gcov_init` were previously never receiving the AArch64 hardening function attributes (ptrauth-returns, ptrauth-auth-traps, ptrauth-indirect-gotos and aarch64-jump-table-hardening) since the attributes were only emitted by Clang and gated by `PointerAuthOptions` structure's corresponding fields. See `setPointerAuthFnAttributes` and `initPointerAuthFnAttributes` member functions of `TargetCodeGenInfo`. This patch resolves this in the same manner as #83153 does for several other attributes. Particularly, Clang now emits corresponding 4 module flags (conditionally on whether the related feature is enabled) with Max behavior, and LLVM's `Function::createWithDefaultAttr` derives the matching function attributes from them. Max behavior with conditional emission is safe because none of these features affect ABI, so promoting an absent flag on module merge cannot break compatibility. |
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| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| AreaTeamMembers.txt | ||
| CMakeLists.txt | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
| Maintainers.md | ||
| NOTES.txt | ||
| README.md | ||
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, 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 websites. Here are some pointers:
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Information on Clang: http://clang.llvm.org/
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Building and using Clang: http://clang.llvm.org/get_started.html
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Clang Static Analyzer: http://clang-analyzer.llvm.org/
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Information on the LLVM project: http://llvm.org/
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If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
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If you find a bug in Clang, please file it in the LLVM bug tracker: