sme2: Enable SME2 for AArch64 gdb on Linux

[thirdparty/binutils-gdb.git] / gdb / features / aarch64-sme2.c

diff --git a/gdb/features/aarch64-sme2.c b/gdb/features/aarch64-sme2.c
new file mode 100644 (file)
index 0000000..a14b98f
--- /dev/null
+++ b/gdb/features/aarch64-sme2.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 2023 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "gdbsupport/tdesc.h"
+
+/* This function is NOT auto generated from xml.  Create the AArch64 SME2
+   feature into RESULT.
+
+   The ZT0 register is only available when the SME ZA register is
+   available.  */
+
+static int
+create_feature_aarch64_sme2 (struct target_desc *result, long regnum)
+{
+  struct tdesc_feature *feature;
+  tdesc_type *element_type;
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.sme2");
+
+  /* Byte type.  */
+  element_type = tdesc_named_type (feature, "uint8");
+
+  /* Vector of 64 bytes.  */
+  element_type = tdesc_create_vector (feature, "sme2_bv", element_type, 64);
+
+  /* The following is the ZT0 register, with 512 bits (64 bytes).  */
+  tdesc_create_reg (feature, "zt0", regnum++, 1, nullptr, 512, "sme2_bv");
+  return regnum;
+}