wip

Author: AlexDenisov

.github/workflows/toolchain.yml

@@ -0,0 +1,27 @@
+name: Build toolchain
+
+on:
+  push:
+    branches: ["main"]
+    tags: ["**"]
+  pull_request:
+    branches: ["main"]
+jobs:
+  macos:
+    name: macOS toolchain
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v5
+      - name: Run CI task
+        run: |
+            echo "Hello"
+            echo "foo" > foo.tar.gz
+            echo "bar" > bar.tar.xz
+      - name: Attach package to the tag
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: "*.tar.*"
+          tag: ${{ github.run_id }}
+          overwrite: true
+          file_glob: true

.gitignore

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+build.dir
+*.toolchain
+*.tar.gz
+*.tar.xz
+

ToolchainCache-stage2.cmake

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+# Based on clang/cmake/caches/DistributionExample-stage2.cmake
+
+# This file sets up a CMakeCache for the second stage of a simple distribution
+# bootstrap build.
+
+set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra;lld" CACHE STRING "")
+set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
+
+set(LLVM_TARGETS_TO_BUILD X86;ARM;AArch64 CACHE STRING "")
+
+set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
+set(LLVM_CCACHE_BUILD ON CACHE BOOL "")
+set(LLVM_ENABLE_ZSTD OFF CACHE BOOL "")
+set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
+set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
+
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+if(APPLE)
+    set(libtool_darwin llvm-libtool-darwin)
+endif()
+
+# setup toolchain
+set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
+set(LLVM_TOOLCHAIN_TOOLS
+    ${libtool_darwin}
+    clang-format
+    clang-tidy
+    llvm-ar
+    llvm-dwp
+    llvm-nm
+    llvm-objcopy
+    llvm-objdump
+    llvm-profdata
+    llvm-ranlib
+    llvm-strip
+    llvm-symbolizer
+
+    CACHE STRING "")
+
+set(LLVM_DISTRIBUTION_COMPONENTS
+    clang
+    LTO
+    lld
+    clang-format
+    clang-resource-headers
+    builtins
+    runtimes
+    ${LLVM_TOOLCHAIN_TOOLS}
+    CACHE STRING "")

ToolchainCache.cmake

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+# Based on clang/cmake/caches/DistributionExample.cmake
+# This file sets up a CMakeCache for a simple distribution bootstrap build.
+
+# Enable LLVM projects and runtimes
+set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra;lld" CACHE STRING "")
+set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
+
+set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
+set(LLVM_CCACHE_BUILD ON CACHE BOOL "")
+set(LLVM_ENABLE_ZSTD OFF CACHE BOOL "")
+set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
+set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
+
+# Only build the native target in stage1 since it is a throwaway build.
+set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
+
+# Optimize the stage1 compiler, but don't LTO it because that wastes time.
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+# Setup vendor-specific settings.
+set(PACKAGE_VENDOR LLVM.org CACHE STRING "")
+
+# Setting up the stage2 LTO option needs to be done on the stage1 build so that
+# the proper LTO library dependencies can be connected.
+set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "")
+
+if(NOT APPLE)
+    # Since LLVM_ENABLE_LTO is ON we need a LTO capable linker
+    set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
+endif()
+
+# Expose stage2 targets through the stage1 build configuration.
+set(CLANG_BOOTSTRAP_TARGETS
+    check-all
+    check-llvm
+    check-clang
+    llvm-config
+    test-suite
+    test-depends
+    llvm-test-depends
+    clang-test-depends
+    distribution
+    install-distribution
+    clang CACHE STRING "")
+
+# Setup the bootstrap build.
+set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
+
+if(STAGE2_CACHE_FILE)
+    set(CLANG_BOOTSTRAP_CMAKE_ARGS
+        -C ${STAGE2_CACHE_FILE}
+        CACHE STRING "")
+else()
+    set(CLANG_BOOTSTRAP_CMAKE_ARGS
+        -C ${CMAKE_CURRENT_LIST_DIR}/ToolchainCache-stage2.cmake
+        CACHE STRING "")
+endif()