Comment out support for mtag extension in libunwind (#85431)

Works around build breaks with some compiler versions. Fixes dotnet/source-build#3424
dotnet · Apr 27, 2023 · 2783ef8 · 2783ef8
1 parent e7481e2
commit 2783ef8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/native/external/llvm-libunwind/src/DwarfInstructions.hpp b/src/native/external/llvm-libunwind/src/DwarfInstructions.hpp
@@ -211,7 +211,7 @@ int DwarfInstructions<A, R>::stepWithDwarf(A &addressSpace, pint_t pc,
       // __unw_step_stage2 is not used for cross unwinding, so we use
       // __aarch64__ rather than LIBUNWIND_TARGET_AARCH64 to make sure we are
       // building for AArch64 natively.
-#if defined(__aarch64__)
+#if 0 // defined(__aarch64__)
       if (stage2 && cieInfo.mteTaggedFrame) {
         pint_t sp = registers.getSP();
         pint_t p = sp;