about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/arm/register-dump.h
blob: 015780c6233eded8592014da121f812f13bd6f7a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/* Dump registers.
   Copyright (C) 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Philip Blundell <pb@nexus.co.uk>, 1998.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <sys/uio.h>
#include <stdio-common/_itoa.h>
#include <bits/armsigctx.h>

/* We will print the register dump in this format:

 R0: XXXXXXXX   R1: XXXXXXXX   R2: XXXXXXXX   R3: XXXXXXXX
 R4: XXXXXXXX   R5: XXXXXXXX   R6: XXXXXXXX   R7: XXXXXXXX
 R8: XXXXXXXX   R9: XXXXXXXX   SL: XXXXXXXX   FP: XXXXXXXX
 IP: XXXXXXXX   SP: XXXXXXXX   LR: XXXXXXXX   PC: XXXXXXXX

 CPSR: XXXXXXXX

 Trap: XXXXXXXX   Error: XXXXXXXX   OldMask: XXXXXXXX

 */

static void
hexvalue (unsigned long int value, char *buf, size_t len)
{
  char *cp = _itoa_word (value, buf + len, 16, 0);
  while (cp > buf)
    *--cp = '0';
}

static void
register_dump (int fd, union k_sigcontext *ctx)
{
  char regs[20][8];
  struct iovec iov[97];
  size_t nr = 0;

#define ADD_STRING(str) \
  iov[nr].iov_base = (char *) str;					      \
  iov[nr].iov_len = strlen (str);					      \
  ++nr
#define ADD_MEM(str, len) \
  iov[nr].iov_base = str;						      \
  iov[nr].iov_len = len;						      \
  ++nr

  /* Generate strings of register contents.  */
  if (ctx->v20.magic == SIGCONTEXT_2_0_MAGIC)
    {
      hexvalue (ctx->v20.reg.ARM_r0, regs[0], 8);
      hexvalue (ctx->v20.reg.ARM_r1, regs[1], 8);
      hexvalue (ctx->v20.reg.ARM_r2, regs[2], 8);
      hexvalue (ctx->v20.reg.ARM_r3, regs[3], 8);
      hexvalue (ctx->v20.reg.ARM_r4, regs[4], 8);
      hexvalue (ctx->v20.reg.ARM_r5, regs[5], 8);
      hexvalue (ctx->v20.reg.ARM_r6, regs[6], 8);
      hexvalue (ctx->v20.reg.ARM_r7, regs[7], 8);
      hexvalue (ctx->v20.reg.ARM_r8, regs[8], 8);
      hexvalue (ctx->v20.reg.ARM_r9, regs[9], 8);
      hexvalue (ctx->v20.reg.ARM_r10, regs[10], 4);
      hexvalue (ctx->v20.reg.ARM_fp, regs[11], 4);
      hexvalue (ctx->v20.reg.ARM_ip, regs[12], 4);
      hexvalue (ctx->v20.reg.ARM_sp, regs[13], 4);
      hexvalue (ctx->v20.reg.ARM_lr, regs[14], 4);
      hexvalue (ctx->v20.reg.ARM_pc, regs[15], 4);
      hexvalue (ctx->v20.reg.ARM_cpsr, regs[16], 8);
      hexvalue (ctx->v20.trap_no, regs[17], 8);
      hexvalue (ctx->v20.error_code, regs[18], 8);
      hexvalue (ctx->v20.oldmask, regs[19], 8);
    }
  else
    {
      hexvalue (ctx->v21.arm_r0, regs[0], 8);
      hexvalue (ctx->v21.arm_r1, regs[1], 8);
      hexvalue (ctx->v21.arm_r2, regs[2], 8);
      hexvalue (ctx->v21.arm_r3, regs[3], 8);
      hexvalue (ctx->v21.arm_r4, regs[4], 8);
      hexvalue (ctx->v21.arm_r5, regs[5], 8);
      hexvalue (ctx->v21.arm_r6, regs[6], 8);
      hexvalue (ctx->v21.arm_r7, regs[7], 8);
      hexvalue (ctx->v21.arm_r8, regs[8], 8);
      hexvalue (ctx->v21.arm_r9, regs[9], 8);
      hexvalue (ctx->v21.arm_r10, regs[10], 4);
      hexvalue (ctx->v21.arm_fp, regs[11], 4);
      hexvalue (ctx->v21.arm_ip, regs[12], 4);
      hexvalue (ctx->v21.arm_sp, regs[13], 4);
      hexvalue (ctx->v21.arm_lr, regs[14], 4);
      hexvalue (ctx->v21.arm_pc, regs[15], 4);
      hexvalue (ctx->v21.arm_cpsr, regs[16], 8);
      hexvalue (ctx->v21.trap_no, regs[17], 8);
      hexvalue (ctx->v21.error_code, regs[18], 8);
      hexvalue (ctx->v21.oldmask, regs[19], 8);
    }

  /* Generate the output.  */
  ADD_STRING ("Register dump:\n\n R0: ");
  ADD_MEM (regs[0], 8);
  ADD_STRING ("   R1: ");
  ADD_MEM (regs[1], 8);
  ADD_STRING ("   R2: ");
  ADD_MEM (regs[2], 8);
  ADD_STRING ("   R3: ");
  ADD_MEM (regs[3], 8);
  ADD_STRING ("\n R4: ");
  ADD_MEM (regs[4], 8);
  ADD_STRING ("   R5: ");
  ADD_MEM (regs[5], 8);
  ADD_STRING ("   R6: ");
  ADD_MEM (regs[6], 8);
  ADD_STRING ("   R7: ");
  ADD_MEM (regs[7], 8);
  ADD_STRING ("\n R8: ");
  ADD_MEM (regs[8], 8);
  ADD_STRING ("   R9: ");
  ADD_MEM (regs[9], 8);
  ADD_STRING ("   SL: ");
  ADD_MEM (regs[10], 8);
  ADD_STRING ("   FP: ");
  ADD_MEM (regs[11], 8);
  ADD_STRING ("\n IP: ");
  ADD_MEM (regs[12], 8);
  ADD_STRING ("   SP: ");
  ADD_MEM (regs[13], 8);
  ADD_STRING ("   LR: ");
  ADD_MEM (regs[14], 8);
  ADD_STRING ("   PC: ");
  ADD_MEM (regs[15], 8);
  ADD_STRING ("\n\n CPSR: ");
  ADD_MEM (regs[16], 8);
  ADD_STRING ("\n\n Trap: ");
  ADD_MEM (regs[17], 8);
  ADD_STRING ("   Error: ");
  ADD_MEM (regs[18], 8);
  ADD_STRING ("   OldMask: ");
  ADD_MEM (regs[19], 8);

  ADD_STRING ("\n");

  /* Write the stuff out.  */
  writev (fd, iov, nr);
}


#define REGISTER_DUMP register_dump (fd, &ctx)