[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 4fe6d02f6e23d47ec9595c170c6fe3450352051b..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) 2017-2019 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -20,14 +20,26 @@
 #ifndef ARCH_AARCH64_H
 #define ARCH_AARCH64_H
 
-#include "common/tdesc.h"
+#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)
@@ -66,6 +80,10 @@ enum aarch64_regnum
 #define AARCH64_B0_REGNUM (AARCH64_H0_REGNUM + 32)
 #define AARCH64_SVE_V0_REGNUM (AARCH64_B0_REGNUM + 32)
 
+#define AARCH64_PAUTH_DMASK_REGNUM(pauth_reg_base) (pauth_reg_base)
+#define AARCH64_PAUTH_CMASK_REGNUM(pauth_reg_base) (pauth_reg_base + 1)
+#define AARCH64_PAUTH_REGS_SIZE (16)
+
 #define AARCH64_X_REGS_NUM 31
 #define AARCH64_V_REGS_NUM 32
 #define AARCH64_SVE_Z_REGS_NUM AARCH64_V_REGS_NUM