[PATCH v2 2/2] ntdll: Add a WARN when setting debug registers fails under Rosetta.

[Brendan Shanks]

From: Brendan Shanks

---
 dlls/ntdll/unix/signal_x86_64.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/ntdll/unix/signal_x86_64.c b/dlls/ntdll/unix/signal_x86_64.c
index 13fe7051c66..80d39406ada 100644
--- a/dlls/ntdll/unix/signal_x86_64.c
+++ b/dlls/ntdll/unix/signal_x86_64.c
@@ -1001,6 +1001,10 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
     if (!self)
     {
         ret = set_thread_context( handle, context, &self, IMAGE_FILE_MACHINE_AMD64 );
+#ifdef __APPLE__
+        if ((flags & CONTEXT_DEBUG_REGISTERS) && (ret == STATUS_UNSUCCESSFUL))
+            WARN_(seh)( "Setting debug registers is not supported under Rosetta\n" );
+#endif
         if (ret || !self) return ret;
         if (flags & CONTEXT_DEBUG_REGISTERS)
         {