amd64-tdep.h revision 1.8 
1/* Target-dependent definitions for AMD64.
2
3   Copyright (C) 2001-2019 Free Software Foundation, Inc.
4   Contributed by Jiri Smid, SuSE Labs.
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#ifndef AMD64_TDEP_H
22#define AMD64_TDEP_H
23
24struct gdbarch;
25struct frame_info;
26struct regcache;
27
28#include "i386-tdep.h"
29
30/* Register numbers of various important registers.  */
31
32enum amd64_regnum
33{
34  AMD64_RAX_REGNUM,		/* %rax */
35  AMD64_RBX_REGNUM,		/* %rbx */
36  AMD64_RCX_REGNUM,		/* %rcx */
37  AMD64_RDX_REGNUM,		/* %rdx */
38  AMD64_RSI_REGNUM,		/* %rsi */
39  AMD64_RDI_REGNUM,		/* %rdi */
40  AMD64_RBP_REGNUM,		/* %rbp */
41  AMD64_RSP_REGNUM,		/* %rsp */
42  AMD64_R8_REGNUM,		/* %r8 */
43  AMD64_R9_REGNUM,		/* %r9 */
44  AMD64_R10_REGNUM,		/* %r10 */
45  AMD64_R11_REGNUM,		/* %r11 */
46  AMD64_R12_REGNUM,		/* %r12 */
47  AMD64_R13_REGNUM,		/* %r13 */
48  AMD64_R14_REGNUM,		/* %r14 */
49  AMD64_R15_REGNUM,		/* %r15 */
50  AMD64_RIP_REGNUM,		/* %rip */
51  AMD64_EFLAGS_REGNUM,		/* %eflags */
52  AMD64_CS_REGNUM,		/* %cs */
53  AMD64_SS_REGNUM,		/* %ss */
54  AMD64_DS_REGNUM,		/* %ds */
55  AMD64_ES_REGNUM,		/* %es */
56  AMD64_FS_REGNUM,		/* %fs */
57  AMD64_GS_REGNUM,		/* %gs */
58  AMD64_ST0_REGNUM = 24,	/* %st0 */
59  AMD64_ST1_REGNUM,		/* %st1 */
60  AMD64_FCTRL_REGNUM = AMD64_ST0_REGNUM + 8,
61  AMD64_FSTAT_REGNUM = AMD64_ST0_REGNUM + 9,
62  AMD64_FTAG_REGNUM = AMD64_ST0_REGNUM + 10,
63  AMD64_XMM0_REGNUM = 40,	/* %xmm0 */
64  AMD64_XMM1_REGNUM,		/* %xmm1 */
65  AMD64_MXCSR_REGNUM = AMD64_XMM0_REGNUM + 16,
66  AMD64_YMM0H_REGNUM,		/* %ymm0h */
67  AMD64_YMM15H_REGNUM = AMD64_YMM0H_REGNUM + 15,
68  AMD64_BND0R_REGNUM = AMD64_YMM15H_REGNUM + 1,
69  AMD64_BND3R_REGNUM = AMD64_BND0R_REGNUM + 3,
70  AMD64_BNDCFGU_REGNUM,
71  AMD64_BNDSTATUS_REGNUM,
72  AMD64_XMM16_REGNUM,
73  AMD64_XMM31_REGNUM = AMD64_XMM16_REGNUM + 15,
74  AMD64_YMM16H_REGNUM,
75  AMD64_YMM31H_REGNUM = AMD64_YMM16H_REGNUM + 15,
76  AMD64_K0_REGNUM,
77  AMD64_K7_REGNUM = AMD64_K0_REGNUM + 7,
78  AMD64_ZMM0H_REGNUM,
79  AMD64_ZMM31H_REGNUM = AMD64_ZMM0H_REGNUM + 31,
80  AMD64_PKRU_REGNUM,
81  AMD64_FSBASE_REGNUM,
82  AMD64_GSBASE_REGNUM
83};
84
85/* Number of general purpose registers.  */
86#define AMD64_NUM_GREGS		24
87
88#define AMD64_NUM_REGS		(AMD64_GSBASE_REGNUM + 1)
89
90extern struct displaced_step_closure *amd64_displaced_step_copy_insn
91  (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to,
92   struct regcache *regs);
93extern void amd64_displaced_step_fixup (struct gdbarch *gdbarch,
94					struct displaced_step_closure *closure,
95					CORE_ADDR from, CORE_ADDR to,
96					struct regcache *regs);
97
98/* Initialize the ABI for amd64.  Uses DEFAULT_TDESC as fallback
99   tdesc, if INFO does not specify one.  */
100extern void amd64_init_abi (struct gdbarch_info info,
101			    struct gdbarch *gdbarch,
102			    const target_desc *default_tdesc);
103
104/* Initialize the ABI for x32.  Uses DEFAULT_TDESC as fallback tdesc,
105   if INFO does not specify one.  */
106extern void amd64_x32_init_abi (struct gdbarch_info info,
107				struct gdbarch *gdbarch,
108				const target_desc *default_tdesc);
109extern const struct target_desc *amd64_target_description (uint64_t xcr0,
110							   bool segments);
111
112/* Fill register REGNUM in REGCACHE with the appropriate
113   floating-point or SSE register value from *FXSAVE.  If REGNUM is
114   -1, do this for all registers.  This function masks off any of the
115   reserved bits in *FXSAVE.  */
116
117extern void amd64_supply_fxsave (struct regcache *regcache, int regnum,
118				 const void *fxsave);
119
120/* Similar to amd64_supply_fxsave, but use XSAVE extended state.  */
121extern void amd64_supply_xsave (struct regcache *regcache, int regnum,
122				const void *xsave);
123
124/* Fill register REGNUM (if it is a floating-point or SSE register) in
125   *FXSAVE with the value from REGCACHE.  If REGNUM is -1, do this for
126   all registers.  This function doesn't touch any of the reserved
127   bits in *FXSAVE.  */
128
129extern void amd64_collect_fxsave (const struct regcache *regcache, int regnum,
130				  void *fxsave);
131/* Similar to amd64_collect_fxsave, but use XSAVE extended state.  */
132extern void amd64_collect_xsave (const struct regcache *regcache,
133				 int regnum, void *xsave, int gcore);
134
135/* Floating-point register set. */
136extern const struct regset amd64_fpregset;
137
138/* Variables exported from amd64-linux-tdep.c.  */
139extern int amd64_linux_gregset_reg_offset[];
140
141/* Variables exported from amd64-nbsd-tdep.c.  */
142extern int amd64nbsd_r_reg_offset[];
143
144/* Variables exported from amd64-obsd-tdep.c.  */
145extern int amd64obsd_r_reg_offset[];
146
147/* Variables exported from amd64-fbsd-tdep.c.  */
148extern CORE_ADDR amd64fbsd_sigtramp_start_addr;
149extern CORE_ADDR amd64fbsd_sigtramp_end_addr;
150extern int amd64fbsd_sc_reg_offset[];
151
152#endif /* amd64-tdep.h */
153