[Lldb-commits] [lldb] [lldb][AArch64] Add Guarded Control Stack registers (PR #123720)

[David Spickett via lldb-commits]

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@@ -2,8 +2,8 @@
 #include <sys/auxv.h>
 #include <sys/prctl.h>
 
-#ifndef HWCAP2_GCS
-#define HWCAP2_GCS (1UL << 63)
+#ifndef HWCAP_GCS
+#define HWCAP_GCS (1UL << 32)
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DavidSpickett wrote:

Yes that is strange. Initially it was a HWCAP2 value but it was moved for some reason. I think this is just the documentation being out of sync because the tests use HWCAP - https://github.com/torvalds/linux/blob/master/tools/testing/selftests/arm64/signal/test_signals.c#L30. As does my code.

I've asked the person who wrote the GCS support to confirm whether this is the case.

https://github.com/llvm/llvm-project/pull/123720