fixup cmake var name and path

Author: nickdesaulniers

.github/workflows/libc-fullbuild-tests.yml

@@ -73,8 +73,8 @@ jobs:
         -DCMAKE_CXX_COMPILER_LAUNCHER=${{ matrix.ccache-variant }}
         -DCMAKE_INSTALL_PREFIX=${{ steps.strings.outputs.build-install-dir }}
         -DLLVM_ENABLE_RUNTIMES="libc;compiler-rt"
+        -DLIBC_USE_HOST_KERNEL_HEADERS=ON
         -DLLVM_LIBC_FULL_BUILD=ON
-        -DLLVM_LIBC_USE_HOST_KERNEL_HEADERS=ON
         -DLLVM_LIBC_INCLUDE_SCUDO=ON
         -DCOMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC=ON
         -DCOMPILER_RT_BUILD_GWP_ASAN=OFF

libc/docs/full_cross_build.rst

@@ -119,10 +119,10 @@ CMake configure step
      -G Ninja \
      -DCMAKE_C_COMPILER=$C_COMPILER \
      -DCMAKE_CXX_COMPILER=$CXX_COMPILER \
+     -DLIBC_KERNEL_HEADERS=$KERNEL_HEADERS \
      -DLLVM_ENABLE_PROJECTS=clang \
      -DLLVM_ENABLE_RUNTIMES=libc \
      -DLLVM_LIBC_FULL_BUILD=ON \
-     -DLIBC_KERNEL_HEADERS=$KERNEL_HEADERS \
      -DLLVM_RUNTIME_TARGETS=$TARGET_TRIPLE \
      -DCMAKE_BUILD_TYPE=Debug
 

libc/docs/full_host_build.rst

@@ -48,13 +48,13 @@ the below cmake variable ``LIBC_KERNEL_HEADERS`` should be omitted.
    $> cd build
    $> cmake ../runtimes \
       -G Ninja \
-      -DCMAKE_C_COMPILER=clang \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_COMPILER=clang++ \
+      -DCMAKE_C_COMPILER=clang \
       -DLLVM_ENABLE_RUNTIMES="libc;compiler-rt" \
+      -DLIBC_KERNEL_HEADERS=/path/to/sysroot/ \
       -DLLVM_LIBC_FULL_BUILD=ON \
-      -DCMAKE_BUILD_TYPE=Debug \
       -DLLVM_LIBC_INCLUDE_SCUDO=ON \
-      -DLLVM_LIBC_KERNEL_HEADERS=/path/to/kernel/headers/ \
       -DCOMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC=ON \
       -DCOMPILER_RT_BUILD_GWP_ASAN=OFF                       \
       -DCOMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED=OFF        \
@@ -136,9 +136,9 @@ allocator for LLVM-libc.
       -DCMAKE_BUILD_TYPE=Release  \
       -DCMAKE_C_COMPILER=clang \
       -DCMAKE_CXX_COMPILER=clang++ \
+      -DLIBC_KERNEL_HEADERS=/path/to/sysroot/ \
       -DLLVM_LIBC_FULL_BUILD=ON \
       -DLLVM_LIBC_INCLUDE_SCUDO=ON \
-      -DLLVM_LIBC_KERNEL_HEADERS=/path/to/kernel/headers/ \
       -DCOMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC=ON \
       -DCOMPILER_RT_BUILD_GWP_ASAN=OFF                       \
       -DCOMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED=OFF        \