1/* Native-dependent code for Solaris x86.
2
3   Copyright (C) 2004, 2007 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#include "defs.h"
21#include "regcache.h"
22
23#include <sys/procfs.h>
24#include "gregset.h"
25
26/* This file provids the (temporary) glue between the Solaris x86
27   target dependent code and the machine independent SVR4 /proc
28   support.  */
29
30/* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process
31   data models, the traditional 32-bit data model (ILP32) and the
32   64-bit data model (LP64).  The format of /proc depends on the data
33   model of the observer (the controlling process, GDB in our case).
34   The Solaris header files conveniently define PR_MODEL_NATIVE to the
35   data model of the controlling process.  If its value is
36   PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
37   program.
38
39   Note that a 32-bit GDB won't be able to debug a 64-bit target
40   process using /proc on Solaris.  */
41
42#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
43
44#include "amd64-nat.h"
45#include "amd64-tdep.h"
46
47/* Mapping between the general-purpose registers in gregset_t format
48   and GDB's register cache layout.  */
49
50/* From <sys/regset.h>.  */
51static int amd64_sol2_gregset64_reg_offset[] = {
52  14 * 8,			/* %rax */
53  11 * 8,			/* %rbx */
54  13 * 8,			/* %rcx */
55  12 * 8,			/* %rdx */
56  9 * 8,			/* %rsi */
57  8 * 8,			/* %rdi */
58  10 * 8,			/* %rbp */
59  20 * 8,			/* %rsp */
60  7 * 8,			/* %r8 ... */
61  6 * 8,
62  5 * 8,
63  4 * 8,
64  3 * 8,
65  2 * 8,
66  1 * 8,
67  0 * 8,			/* ... %r15 */
68  17 * 8,			/* %rip */
69  16 * 8,			/* %eflags */
70  18 * 8,			/* %cs */
71  21 * 8,			/* %ss */
72  25 * 8,			/* %ds */
73  24 * 8,			/* %es */
74  22 * 8,			/* %fs */
75  23 * 8			/* %gs */
76};
77
78/* 32-bit registers are provided by Solaris in 64-bit format, so just
79   give a subset of the list above.  */
80static int amd64_sol2_gregset32_reg_offset[] = {
81  14 * 8,			/* %eax */
82  13 * 8,			/* %ecx */
83  12 * 8,			/* %edx */
84  11 * 8,			/* %ebx */
85  20 * 8,			/* %esp */
86  10 * 8,			/* %ebp */
87  9 * 8,			/* %esi */
88  8 * 8,			/* %edi */
89  17 * 8,			/* %eip */
90  16 * 8,			/* %eflags */
91  18 * 8,			/* %cs */
92  21 * 8,			/* %ss */
93  25 * 8,			/* %ds */
94  24 * 8,			/* %es */
95  22 * 8,			/* %fs */
96  23 * 8			/* %gs */
97};
98
99void
100supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
101{
102  amd64_supply_native_gregset (regcache, gregs, -1);
103}
104
105void
106supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
107{
108  amd64_supply_fxsave (regcache, -1, fpregs);
109}
110
111void
112fill_gregset (const struct regcache *regcache,
113	      prgregset_t *gregs, int regnum)
114{
115  amd64_collect_native_gregset (regcache, gregs, regnum);
116}
117
118void
119fill_fpregset (const struct regcache *regcache,
120	       prfpregset_t *fpregs, int regnum)
121{
122  amd64_collect_fxsave (regcache, regnum, fpregs);
123}
124
125#else
126
127/* For 32-bit Solaris x86, we use the Unix SVR4 code in i386v4-nat.c.  */
128
129#endif
130
131/* Provide a prototype to silence -Wmissing-prototypes.  */
132extern void _initialize_amd64_sol2_nat (void);
133
134void
135_initialize_amd64_sol2_nat (void)
136{
137#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
138  amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
139  amd64_native_gregset32_num_regs =
140    ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
141  amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
142  amd64_native_gregset64_num_regs =
143    ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
144#endif
145}
146