OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [gdb/] [hppanbsd-nat.c] - Blame information for rev 857

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 24 jeremybenn
/* Native-dependent code for NetBSD/hppa.
2
 
3
   Copyright (C) 2008 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 2 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, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street, Fifth Floor,
20
   Boston, MA 02110-1301, USA.  */
21
 
22
#include "defs.h"
23
#include "inferior.h"
24
#include "regcache.h"
25
 
26
#include <sys/types.h>
27
#include <sys/ptrace.h>
28
#include <machine/reg.h>
29
 
30
#include "hppa-tdep.h"
31
#include "inf-ptrace.h"
32
 
33
#include "nbsd-nat.h"
34
 
35
static int
36
hppanbsd_gregset_supplies_p (int regnum)
37
{
38
  return ((regnum >= HPPA_R0_REGNUM && regnum <= HPPA_R31_REGNUM) ||
39
          (regnum >= HPPA_SAR_REGNUM && regnum <= HPPA_PCSQ_TAIL_REGNUM) ||
40
          regnum == HPPA_IPSW_REGNUM ||
41
          (regnum >= HPPA_SR4_REGNUM && regnum <= HPPA_SR4_REGNUM + 5));
42
}
43
 
44
static int
45
hppanbsd_fpregset_supplies_p (int regnum)
46
{
47
  return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
48
}
49
 
50
/* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
51
 
52
static void
53
hppanbsd_supply_gregset (struct regcache *regcache, const void *gregs)
54
{
55
  const char *regs = gregs;
56
  const int *r = gregs;
57
  int regnum;
58
 
59
  for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
60
    regcache_raw_supply (regcache, regnum, regs + regnum * 4);
61
 
62
  regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
63
  regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
64
  regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
65
  regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
66
  regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
67
  regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
68
  regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
69
  regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 1, regs + 37 * 4);
70
  regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 2, regs + 38 * 4);
71
  regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 3, regs + 39 * 4);
72
  regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 4, regs + 40 * 4);
73
}
74
 
75
/* Supply the floating-point registers stored in FPREGS to REGCACHE.  */
76
 
77
static void
78
hppanbsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
79
{
80
  const char *regs = fpregs;
81
  int regnum;
82
 
83
  for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
84
       regnum += 2, regs += 8)
85
    {
86
      regcache_raw_supply (regcache, regnum, regs);
87
      regcache_raw_supply (regcache, regnum + 1, regs + 4);
88
    }
89
}
90
 
91
/* Collect the general-purpose registers from REGCACHE and store them
92
   in GREGS.  */
93
 
94
static void
95
hppanbsd_collect_gregset (const struct regcache *regcache,
96
                          void *gregs, int regnum)
97
{
98
  char *regs = gregs;
99
  int *r = gregs;
100
  int i;
101
 
102
  for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
103
    {
104
      if (regnum == -1 || regnum == i)
105
        regcache_raw_collect (regcache, i, regs + i * 4);
106
    }
107
 
108
  if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
109
    regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
110
  if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
111
    regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
112
  if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
113
    regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
114
 
115
  if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
116
    regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
117
  if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
118
    regcache_raw_collect (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
119
  if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
120
    regcache_raw_collect (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
121
  if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
122
    regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
123
  if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
124
    regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
125
  if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
126
    regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
127
  if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
128
    regcache_raw_collect (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
129
  if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 1)
130
    regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 1, regs + 37 * 4);
131
  if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 2)
132
    regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 2, regs + 38 * 4);
133
  if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 3)
134
    regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 3, regs + 39 * 4);
135
  if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 4)
136
    regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 4, regs + 40 * 4);
137
}
138
 
139
/* Collect the floating-point registers from REGCACHE and store them
140
   in FPREGS.  */
141
 
142
static void
143
hppanbsd_collect_fpregset (struct regcache *regcache,
144
                          void *fpregs, int regnum)
145
{
146
  char *regs = fpregs;
147
  int i;
148
 
149
  for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
150
    {
151
      if (regnum == -1 || regnum == i || regnum == i + 1)
152
        {
153
          regcache_raw_collect (regcache, i, regs);
154
          regcache_raw_collect (regcache, i + 1, regs + 4);
155
        }
156
    }
157
}
158
 
159
 
160
/* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
161
   for all registers (including the floating-point registers).  */
162
 
163
static void
164
hppanbsd_fetch_registers (struct regcache *regcache, int regnum)
165
 
166
{
167
  if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
168
    {
169
      struct reg regs;
170
 
171
      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
172
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
173
        perror_with_name (_("Couldn't get registers"));
174
 
175
      hppanbsd_supply_gregset (regcache, &regs);
176
    }
177
 
178
  if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
179
    {
180
      struct fpreg fpregs;
181
 
182
      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
183
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
184
        perror_with_name (_("Couldn't get floating point status"));
185
 
186
      hppanbsd_supply_fpregset (regcache, &fpregs);
187
    }
188
}
189
 
190
/* Store register REGNUM back into the inferior.  If REGNUM is -1, do
191
   this for all registers (including the floating-point registers).  */
192
 
193
static void
194
hppanbsd_store_registers (struct regcache *regcache, int regnum)
195
{
196
  if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
197
    {
198
      struct reg regs;
199
 
200
      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
201
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
202
        perror_with_name (_("Couldn't get registers"));
203
 
204
      hppanbsd_collect_gregset (regcache, &regs, regnum);
205
 
206
      if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
207
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
208
        perror_with_name (_("Couldn't write registers"));
209
    }
210
 
211
  if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
212
    {
213
      struct fpreg fpregs;
214
 
215
      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
216
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
217
        perror_with_name (_("Couldn't get floating point status"));
218
 
219
      hppanbsd_collect_fpregset (regcache, &fpregs, regnum);
220
 
221
      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
222
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
223
        perror_with_name (_("Couldn't write floating point status"));
224
    }
225
}
226
 
227
 
228
/* Provide a prototype to silence -Wmissing-prototypes.  */
229
void _initialize_hppanbsd_nat (void);
230
 
231
void
232
_initialize_hppanbsd_nat (void)
233
{
234
  struct target_ops *t;
235
 
236
  /* Add some extra features to the ptrace target.  */
237
  t = inf_ptrace_target ();
238
 
239
  t->to_fetch_registers = hppanbsd_fetch_registers;
240
  t->to_store_registers = hppanbsd_store_registers;
241
 
242
  t->to_pid_to_exec_file = nbsd_pid_to_exec_file;
243
 
244
  add_target (t);
245
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.