Thiago Jung Bauermann <thiago.bauermann@linaro.org> writes:

> diff --git a/gdb/nat/aarch64-scalable-linux-ptrace.h b/gdb/nat/aarch64-scalable-linux-ptrace.h
> index 453f19dfe8d9..f3424baf7092 100644
> --- a/gdb/nat/aarch64-scalable-linux-ptrace.h
> +++ b/gdb/nat/aarch64-scalable-linux-ptrace.h
> @@ -34,6 +34,17 @@
>  #include <stdarg.h>
>  #include "aarch64-scalable-linux-sigcontext.h"
> 
> +/* Feature check for Scalable Matrix Extension.  */
> +#ifndef HWCAP2_SME
> +#define HWCAP2_SME (1 << 23)
> +#endif
> +
> +/* Feature check for Scalable Matrix Extension 2.  */
> +#ifndef HWCAP2_SME2
> +#define HWCAP2_SME2   (1UL << 37)
> +#define HWCAP2_SME2P1 (1UL << 38)
> +#endif
> +
>  /* Indicates whether a SVE ptrace header is followed by SVE registers or a
>     fpsimd structure.  */
>  #define HAS_SVE_STATE(header) ((header).flags & SVE_PT_REGS_SVE)

As with the other patches, I amended this one locally with:

diff --git a/gdb/nat/aarch64-scalable-linux-ptrace.h b/gdb/nat/aarch64-scalable-linux-ptrace.h
index f3424baf7092..357154751508 100644
--- a/gdb/nat/aarch64-scalable-linux-ptrace.h
+++ b/gdb/nat/aarch64-scalable-linux-ptrace.h
@@ -30,6 +30,7 @@
    these very same symbols.  When that's the case, build errors will
    result when <asm/ptrace.h> is included before <sys/ptrace.h>.  */
 #include <sys/ptrace.h>
+#include <asm/hwcap.h>
 #include <asm/ptrace.h>
 #include <stdarg.h>
 #include "aarch64-scalable-linux-sigcontext.h"

--
Thiago