internal/rosa/llvm: update configuration for early runtimes

These were never updated when the bootstrap was moved to stage0-only.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/llvm.go

@@ -39,16 +39,23 @@ func (t Toolchain) newEarlyCompilerRT() (pkg.Artifact, string) {
 		Append: []string{"compiler-rt"},
 
 		Cache: []KV{
+			{"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", "OFF"},
+			{"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"},
@@ -99,19 +106,29 @@ func (t Toolchain) newEarlyRuntimes() (pkg.Artifact, string) {
 		Append: []string{"runtimes"},
 
 		Cache: []KV{
+			{"ENABLE_LINKER_BUILD_ID", "ON"},
+
 			// libc++ not yet available
 			{"CMAKE_CXX_COMPILER_WORKS", "ON"},
 
 			{"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_RUNTIMES", "'libunwind;libcxx;libcxxabi'"},
 
+			{"LIBUNWIND_ENABLE_ASSERTIONS", "OFF"},
 			{"LIBUNWIND_USE_COMPILER_RT", "ON"},
 			{"LIBCXX_HAS_MUSL_LIBC", "ON"},
 			{"LIBCXX_USE_COMPILER_RT", "ON"},
+			{"LIBCXX_CXX_ABI", "libcxxabi"},
+			{"LIBCXX_ENABLE_STATIC_ABI_LIBRARY", "OFF"},
+			{"LIBCXX_HARDENING_MODE", "fast"},
 			{"LIBCXX_HAS_ATOMIC_LIB", "OFF"},
 			{"LIBCXXABI_USE_COMPILER_RT", "ON"},
 			{"LIBCXXABI_USE_LLVM_UNWINDER", "ON"},
+			{"LIBCXXABI_ENABLE_STATIC_UNWINDER", "OFF"},
 			{"LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL", "OFF"},
 
 			{"LLVM_ENABLE_ZLIB", "FORCE_ON"},
@@ -144,11 +161,11 @@ func init() {
 func (t Toolchain) newLLVM() (pkg.Artifact, string) {
 	var early PArtifact = muslHeaders
 	if t.isStage0() {
-		// The LLVM build system is buggy around LLVM_LINK_LLVM_DYLIB and leaks
+		// The LLVM build system uses the system installation when building with
-		// the system installation when invoking the newly built toolchain. This
+		// LLVM_LINK_LLVM_DYLIB, since it builds runtimes after the fact, using
-		// is worked around in stage0 by providing standalone builds of
+		// the just-built toolchain. This is unacceptable in stage0 due to the
-		// runtimes. Later stages rely on 3-stage determinism and allows the
+		// potential version difference. Later stages bootstrap off of runtimes
-		// system installation from its previous stage to leak through.
+		// of its previous stage via 3-stage determinism.
 		early = earlyRuntimes
 	}