aarch64-tdep.h revision 1.3 
1/* Common target dependent code for GDB on AArch64 systems.
2
3   Copyright (C) 2009-2015 Free Software Foundation, Inc.
4   Contributed by ARM Ltd.
5
6   This file is part of GDB.
7
8   This program is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
21
22#ifndef AARCH64_TDEP_H
23#define AARCH64_TDEP_H
24
25/* Forward declarations.  */
26struct gdbarch;
27struct regset;
28
29/* AArch64 Dwarf register numbering.  */
30#define AARCH64_DWARF_X0   0
31#define AARCH64_DWARF_SP  31
32#define AARCH64_DWARF_V0  64
33
34/* Register numbers of various important registers.  */
35enum aarch64_regnum
36{
37  AARCH64_X0_REGNUM,		/* First integer register */
38
39  /* Frame register in AArch64 code, if used.  */
40  AARCH64_FP_REGNUM = AARCH64_X0_REGNUM + 29,
41  AARCH64_LR_REGNUM = AARCH64_X0_REGNUM + 30,	/* Return address */
42  AARCH64_SP_REGNUM,		/* Stack pointer */
43  AARCH64_PC_REGNUM,		/* Program counter */
44  AARCH64_CPSR_REGNUM,		/* Contains status register */
45  AARCH64_V0_REGNUM,		/* First floating point / vector register */
46
47  /* Last floating point / vector register */
48  AARCH64_V31_REGNUM = AARCH64_V0_REGNUM + 31,
49  AARCH64_FPSR_REGNUM,		/* Floating point status register */
50  AARCH64_FPCR_REGNUM,		/* Floating point control register */
51
52  /* Other useful registers.  */
53
54  /* Last integer-like argument */
55  AARCH64_LAST_X_ARG_REGNUM = AARCH64_X0_REGNUM + 7,
56  AARCH64_STRUCT_RETURN_REGNUM = AARCH64_X0_REGNUM + 8,
57  AARCH64_LAST_V_ARG_REGNUM = AARCH64_V0_REGNUM + 7
58};
59
60/* Size of integer registers.  */
61#define X_REGISTER_SIZE  8
62#define B_REGISTER_SIZE  1
63#define H_REGISTER_SIZE  2
64#define S_REGISTER_SIZE  4
65#define D_REGISTER_SIZE  8
66#define V_REGISTER_SIZE 16
67#define Q_REGISTER_SIZE 16
68
69/* Total number of general (X) registers.  */
70#define AARCH64_X_REGISTER_COUNT 32
71
72/* Target-dependent structure in gdbarch.  */
73struct gdbarch_tdep
74{
75  /* Lowest address at which instructions will appear.  */
76  CORE_ADDR lowest_pc;
77
78  /* Offset to PC value in jump buffer.  If this is negative, longjmp
79     support will be disabled.  */
80  int jb_pc;
81
82  /* And the size of each entry in the buf.  */
83  size_t jb_elt_size;
84
85  /* Types for AdvSISD registers.  */
86  struct type *vnq_type;
87  struct type *vnd_type;
88  struct type *vns_type;
89  struct type *vnh_type;
90  struct type *vnb_type;
91};
92
93#endif /* aarch64-tdep.h */
94