1 files changed, 60 insertions, 0 deletions
diff --git a/gdbserver/linux-aarch64-tdesc.cc b/gdbserver/linux-aarch64-tdesc.cc
new file mode 100644
index 0000000..897fbb4
--- /dev/null
+++ b/gdbserver/linux-aarch64-tdesc.cc
@@ -0,0 +1,60 @@
+/* GNU/Linux/aarch64 specific target description, for the remote server
+   for GDB.
+   Copyright (C) 2017-2020 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 "server.h"
+
+#include "linux-aarch64-tdesc.h"
+
+#include "tdesc.h"
+#include "arch/aarch64.h"
+#include "linux-aarch32-low.h"
+#include <inttypes.h>
+
+/* All possible aarch64 target descriptors.  */
+struct target_desc *tdesc_aarch64_list[AARCH64_MAX_SVE_VQ + 1][2/*pauth*/];
+
+/* Create the aarch64 target description.  */
+
+const target_desc *
+aarch64_linux_read_description (uint64_t vq, bool pauth_p)
+{
+  if (vq > AARCH64_MAX_SVE_VQ)
+    error (_("VQ is %" PRIu64 ", maximum supported value is %d"), vq,
+	   AARCH64_MAX_SVE_VQ);
+
+  struct target_desc *tdesc = tdesc_aarch64_list[vq][pauth_p];
+
+  if (tdesc == NULL)
+    {
+      tdesc = aarch64_create_target_description (vq, pauth_p);
+
+      static const char *expedite_regs_aarch64[] = { "x29", "sp", "pc", NULL };
+      static const char *expedite_regs_aarch64_sve[] = { "x29", "sp", "pc",
+							 "vg", NULL };
+
+      if (vq == 0)
+	init_target_desc (tdesc, expedite_regs_aarch64);
+      else
+	init_target_desc (tdesc, expedite_regs_aarch64_sve);
+
+      tdesc_aarch64_list[vq][pauth_p] = tdesc;
+    }
+
+  return tdesc;
+}