ntdll: Add a WARN when setting debug registers fails under Rosetta.

(cherry picked from commit 39655dad)

ntdll: Add a WARN when setting debug registers fails under Rosetta.
eb52b682 · Brendan Shanks · Alexandre Julliard · a1dc9c90 · eb52b682
Commit eb52b682 authored Feb 16, 2023 by Brendan Shanks Committed by Alexandre Julliard Apr 19, 2023
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signal_x86_64.c dlls/ntdll/unix/signal_x86_64.c +4 -0

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--- 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)
        {