1 files changed, 65 insertions, 0 deletions
diff --git a/internal/rosa/package/llvm/package.az b/internal/rosa/package/llvm/package.az
index feefeba8..352dca53 100644
--- a/internal/rosa/package/llvm/package.az
+++ b/internal/rosa/package/llvm/package.az
@@ -17,6 +17,71 @@ package llvm-project {
 	];
 }
 
+package early-compiler-rt {
+	description = "early LLVM runtime: compiler-rt";
+	source = llvm-project;
+
+	exclusive = true;
+	early = `
+LLVM_VERSION_MAJOR="$(cmake -P /dev/stdin <<< '
+include(cmake/Modules/LLVMVersion.cmake)
+message(NOTICE "${LLVM_VERSION_MAJOR}")
+' 2>&1)"
+`;
+	exec = cmake {
+		append = [ "compiler-rt" ];
+		cache = {
+			"ENABLE_LINKER_BUILD_ID": "ON";
+
+			// libc++ not yet available
+			"CMAKE_CXX_COMPILER_TARGET": "";
+
+			"LLVM_HOST_TRIPLE": `"${ROSA_TRIPLE}"`;
+			"LLVM_DEFAULT_TARGET_TRIPLE": `"${ROSA_TRIPLE}"`;
+			"LLVM_ENABLE_RTTI": "ON";
+			"LLVM_BUILD_LLVM_DYLIB": "ON";
+			"LLVM_LINK_LLVM_DYLIB": "ON";
+			"LLVM_ENABLE_PER_TARGET_RUNTIME_DIR": "ON";
+
+			"COMPILER_RT_BUILD_BUILTINS": "ON";
+			"COMPILER_RT_DEFAULT_TARGET_ONLY": "ON";
+			"COMPILER_RT_USE_BUILTINS_LIBRARY": "ON";
+			"COMPILER_RT_SANITIZERS_TO_BUILD": "asan";
+			"COMPILER_RT_BUILD_GWP_ASAN": "OFF";
+
+			// does not work without libunwind
+			"COMPILER_RT_BUILD_CTX_PROFILE": "OFF";
+			"COMPILER_RT_BUILD_LIBFUZZER": "OFF";
+			"COMPILER_RT_BUILD_MEMPROF": "OFF";
+			"COMPILER_RT_BUILD_PROFILE": "OFF";
+			"COMPILER_RT_BUILD_XRAY": "OFF";
+		};
+		skipTest = true;
+		postInstall = `
+mkdir -p "/work/system/lib/clang/$LLVM_VERSION_MAJOR/lib/"
+ln -s \
+	"../../../${ROSA_TRIPLE}" \
+	"/work/system/lib/clang/$LLVM_VERSION_MAJOR/lib/"
+
+ln -s \
+	"clang_rt.crtbegin-`+linuxArch+`.o" \
+	"/work/system/lib/${ROSA_TRIPLE}/crtbeginS.o"
+ln -s \
+	"clang_rt.crtend-`+linuxArch+`.o" \
+	"/work/system/lib/${ROSA_TRIPLE}/crtendS.o"
+`;
+	};
+
+	inputs = [
+		python-early,
+
+		musl-headers,
+		kernel-headers,
+	];
+
+	runtime = [ musl ];
+}
+
 package early-runtimes {
 	description = "early LLVM runtimes: libunwind, libcxx, libcxxabi";
 	source = llvm-project;