General improvements to Emscripten llvm build

Author: mcbarton

.github/workflows/emscripten.yml

@@ -299,6 +299,8 @@ jobs:
                         -DLLVM_INCLUDE_TESTS=OFF                        \
                         -DLLVM_ENABLE_THREADS=OFF                       \
                         -G Ninja                                         \
+                        -DLLVM_BUILD_TOOLS=OFF                          \
+                        -DLLVM_ENABLE_LIBPFM=OFF                        \
                          ../llvm
           emmake ninja clang cling lld gtest_main -j ${{ env.ncpus }}
         else
@@ -325,10 +327,13 @@ jobs:
                         -DLLVM_INCLUDE_EXAMPLES=OFF                     \
                         -DLLVM_INCLUDE_TESTS=OFF                        \
                         -DLLVM_ENABLE_THREADS=OFF                       \
+                        -DLLVM_BUILD_TOOLS=OFF                          \
+                        -DLLVM_ENABLE_LIBPFM=OFF                        \
                         -G Ninja                                         \
                         ../llvm
           emmake ninja libclang clangInterpreter clangStaticAnalyzerCore lldWasm -j ${{ env.ncpus }}
         fi
+        rm -rf ./NATIVE/
         cd ../
         rm -rf $(find . -maxdepth 1 ! -name "build" ! -name "llvm" ! -name "clang" ! -name ".")
         if [[ "${cling_on}" == "ON" ]]; then

Emscripten-build-instructions.md

@@ -69,6 +69,8 @@ emcmake cmake -DCMAKE_BUILD_TYPE=Release \
                         -DLLVM_INCLUDE_EXAMPLES=OFF                     \
                         -DLLVM_INCLUDE_TESTS=OFF                        \
                         -DLLVM_ENABLE_THREADS=OFF                       \
+                        -DLLVM_BUILD_TOOLS=OFF                          \
+                        -DLLVM_ENABLE_LIBPFM=OFF                        \
                         ../llvm
 emmake make libclang -j $(nproc --all)
 emmake make clangInterpreter clangStaticAnalyzerCore -j $(nproc --all)

docs/Emscripten-build-instructions.rst

@@ -85,6 +85,8 @@ executing the following
                  -DLLVM_INCLUDE_EXAMPLES=OFF                     \
                  -DLLVM_INCLUDE_TESTS=OFF                        \
                  -DLLVM_ENABLE_THREADS=OFF                       \
+                 -DLLVM_BUILD_TOOLS=OFF                          \
+                 -DLLVM_ENABLE_LIBPFM=OFF                        \
                  ../llvm
    emmake make libclang -j $(nproc --all)
    emmake make clangInterpreter clangStaticAnalyzerCore -j $(nproc --all)