llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-clang Author: David Spickett (DavidSpickett) <details> <summary>Changes</summary> That were implemented by https://github.com/llvm/llvm-project/pull/89638. --- Full diff: https://github.com/llvm/llvm-project/pull/90734.diff 1 Files Affected: - (modified) clang/docs/ReleaseNotes.rst (+19) ``````````diff diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 2c5308fbcb319a..6f62daba6af081 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -85,6 +85,25 @@ Clang Frontend Potentially Breaking Changes of ``-Wno-gnu-binary-literal`` will no longer silence this pedantic warning, which may break existing uses with ``-Werror``. +- The normalization of 3 element target triples where ``-none-`` is the middle + element has changed. For example, ``armv7m-none-eabi`` previously normalized + to ``armv7m-none-unknown-eabi``, with ``none`` for the vendor and ``unknown`` + for the operating system. It now normalizes to ``armv7m-unknown-none-eabi``, + which has ``unknown`` vendor and ``none`` operating system. + + The affected triples are primarily for bare metal Arm where it is intended + that ``none`` means that there is no operating system. As opposed to an unknown + type of operating system. + + This change my cause clang to not find libraries, or libraries to be built at + different file system locations. This can be fixed by changing your builds to + use the new normalized triple. However, we recommend instead getting the + normalized triple from clang itself, as this will make your builds more + robust in case of future changes:: + + $ clang --target=<your target triple> -print-target-triple + <the normalized target triple> + What's New in Clang |release|? ============================== Some of the major new features and improvements to Clang are listed `````````` </details> https://github.com/llvm/llvm-project/pull/90734 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
