WIP: Apply a patch on llvm-project

Author: mstorsjo

build-llvm.sh

@@ -152,6 +152,7 @@ if [ -n "$SYNC" ] || [ -n "$CHECKOUT" ]; then
             ;;
         esac
     fi
+    GIT_COMMITTER_NAME="temp" GIT_COMMITTER_EMAIL="temp" git am -3 --keep-non-patch ../patches/llvm-project/*.patch
     cd ..
 fi
 

patches/llvm-project/0001-libunwind-Fix-aarch64-unwinding-with-a-debugger-atta.patch

@@ -0,0 +1,25 @@
+From 3b5b7ddb12fae7ff0807931583dcc3a7f21efc62 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <[email protected]>
+Date: Fri, 10 Oct 2025 10:34:39 +0300
+Subject: [PATCH] [libunwind] Fix aarch64 unwinding with a debugger attached
+
+---
+ libunwind/src/Unwind-seh.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libunwind/src/Unwind-seh.cpp b/libunwind/src/Unwind-seh.cpp
+index 8b83f10615f2..058369acf336 100644
+--- a/libunwind/src/Unwind-seh.cpp
++++ b/libunwind/src/Unwind-seh.cpp
+@@ -174,7 +174,7 @@ _GCC_specific_handler(PEXCEPTION_RECORD ms_exc, PVOID frame, PCONTEXT ms_ctx,
+     }
+     // FIXME: Indicate target frame in foreign case!
+     // phase 2: the clean up phase
+-    RtlUnwindEx(frame, (PVOID)disp->ControlPc, ms_exc, exc, ms_ctx, disp->HistoryTable);
++    RtlUnwindEx(frame, (PVOID)disp->ControlPc, ms_exc, exc, disp->ContextRecord, disp->HistoryTable);
+     _LIBUNWIND_ABORT("RtlUnwindEx() failed");
+   case _URC_INSTALL_CONTEXT: {
+     // If we were called by __libunwind_seh_personality(), indicate that
+-- 
+2.43.0
+