[PATCH] D124214: [libc][NOT FOR COMMIT] building LLVM-libc on 32 bit arm with gcc

[Michael Jones via Phabricator via llvm-commits]

michaelrj created this revision.
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This patch is only for demonstration purposes and is not intended to be
landed. It contains the changes needed to allow LLVM-libc to be built
with prebuilt GCC for ARM.

To build LLVM-libc with this configuration, use the following command:

cmake ../llvm -G Ninja -DLLVM_ENABLE_PROJECTS="libc"
-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=arm-none-eabi-gcc
-DCMAKE_CXX_COMPILER=arm-none-eabi-g++ -DLLVM_LIBC_FULL_BUILD=OFF
-DLLVM_LIBC_ENABLE_LINTING=OFF -DLLVM_LIBC_INCLUDE_SCUDO=OFF
-DCMAKE_C_FLAGS="-specs=nosys.specs"
-DCMAKE_CXX_FLAGS="-specs=nosys.specs -Wno-psabi"
-DLLVM_DEFAULT_TARGET_TRIPLE=arm-unknown-linux-eabi
-DCMAKE_SYSTEM_NAME=Linux -DCMAKE_SYSTEM_PROCESSOR=arm
-DLLVM_INCLUDE_BENCHMARKS=OFF


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124214

Files:
  libc/cmake/modules/LLVMLibCCheckCpuFeatures.cmake
  libc/config/linux/arm/entrypoints.txt
  libc/config/linux/arm/headers.txt
  libc/src/__support/CPP/TypeTraits.h
  libc/src/__support/FPUtil/FloatProperties.h
  libc/src/string/memory_utils/utils.h
  libc/test/src/string/CMakeLists.txt
  llvm/cmake/config-ix.cmake

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