[AArch64] Make gdbserver register set selection dynamic

[deliverable/binutils-gdb.git] / gdb / arch / aarch64.h

diff --git a/gdb/arch/aarch64.h b/gdb/arch/aarch64.h
index 857bb22b037a95671a0578df94c90cf27b6c8fbb..95edb664b5517e2f34c255733e797e4d8f1db35f 100644 (file)
--- a/gdb/arch/aarch64.h
+++ b/gdb/arch/aarch64.h
@@ -1,6 +1,6 @@
 /* Common target-dependent functionality for AArch64.
 
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,12 +22,24 @@
 
 #include "gdbsupport/tdesc.h"
 
+/* Holds information on what architectural features are available.  This is
+   used to select register sets.  */
+struct aarch64_features
+{
+  bool sve = false;
+  bool pauth = false;
+  bool mte = false;
+};
+
 /* Create the aarch64 target description.  A non zero VQ value indicates both
    the presence of SVE and the Vector Quotient - the number of 128bit chunks in
    an SVE Z register.  HAS_PAUTH_P indicates the presence of the PAUTH
-   feature.  */
+   feature.
 
-target_desc *aarch64_create_target_description (uint64_t vq, bool has_pauth_p);
+   MTE_P indicates the presence of the Memory Tagging Extension feature.  */
+
+target_desc *aarch64_create_target_description (uint64_t vq, bool has_pauth_p,
+                                               bool mte_p);
 
 /* Register numbers of various important registers.
    Note that on SVE, the Z registers reuse the V register numbers and the V
@@ -58,6 +70,8 @@ enum aarch64_regnum
   AARCH64_LAST_V_ARG_REGNUM = AARCH64_V0_REGNUM + 7
 };
 
+#define V_REGISTER_SIZE 16
+
 /* Pseudo register base numbers.  */
 #define AARCH64_Q0_REGNUM 0
 #define AARCH64_D0_REGNUM (AARCH64_Q0_REGNUM + AARCH64_D_REGISTER_COUNT)