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${ item.name }
${ noResults }
Newlib or Picolibc libraries for LLVM may be compiled or installed from pre-built sources independently of LLVM itself. This means that always indicating that TOOLCHAIN_HAS_NEWLIB=OFF and TOOLCHAIN_HAS_PICOLIBC=OFF are wrong. But it could be just as wrong to always indicate suport for newlib or picolibc. Some pre-built LLVM toolchains are provided with default picolibc support, such as LLVM for Arm embedded, but can also be used with newlib be installing newlib add-on package. Unfortunately it's not possible to query LLVM regarding newlib or picolibc support. Developers have the option of `-DTOOLCHAIN_HAS_<NEWLIB|PICOLIBC>=ON`, but this is not widely known and cumbersome to do for each build. An indication of newlib or picolibc support is the presence of library specific headers, so to improve current situation we check for library specific headers, and if those are present we assume support for the library. This commit improves the current support for LLVM in Zephyr when cross-compiling, especially for users of LLVM for Arm embedded. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no> |
9 months ago | |
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.. | ||
compiler_flags.cmake | cmake: move specs compiler and linker flags to toolchain properties | 9 months ago |
generic.cmake | cmake: remove clang++ lookup in clang/generic.cmake | 2 years ago |
target.cmake | cmake: detect LLVM picolibc and newlib support | 9 months ago |
target_arm.cmake | toolchain: clang: arm: do not use fp instruction when CONFIG_FPU=n | 1 year ago |
target_arm64.cmake | cmake: llvm: arm64: Set arm64 flags when building with clang | 1 year ago |