sysdeps/unix/sysv/linux/cris/register-dump.h

   1 /* Dump registers.
   2    Copyright (C) 1998, 2001 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <stddef.h>
  21 #include <sys/uio.h>
  22 #include <stdio-common/_itoa.h>
  23
  24 /* We will print the register dump in this format:
  25
  26   R0: XXXXXXXX   R1: XXXXXXXX   R2: XXXXXXXX   R3: XXXXXXXX
  27   R4: XXXXXXXX   R5: XXXXXXXX   R6: XXXXXXXX   R7: XXXXXXXX
  28   R8: XXXXXXXX   R9: XXXXXXXX  R10: XXXXXXXX  R11: XXXXXXXX
  29  R12: XXXXXXXX  R13: XXXXXXXX   SP: XXXXXXXX   PC: XXXXXXXX
  30 DCCR: XXXXXXXX  SRP: XXXXXXXX */
  31
  32 static void
  33 hexvalue (unsigned long int value, char *buf, size_t len)
  34 {
  35   char *cp = _itoa_word (value, buf + len, 16, 0);
  36   while (cp > buf)
  37     *--cp = '0';
  38 }
  39
  40 static void register_dump (int fd, struct sigcontext *ctx)
  41 {
  42   char regs[18][8];
  43   struct iovec iov[36], *next_iov = iov;
  44   struct pt_regs *rx = &ctx->regs;
  45
  46 #define ADD_STRING(str) \
  47   next_iov->iov_base = (char *) (str); \
  48   next_iov->iov_len = strlen (str); \
  49   ++next_iov
  50 #define ADD_MEM(str, len) \
  51   next_iov->iov_base = (str); \
  52   next_iov->iov_len = (len); \
  53   ++next_iov
  54
  55   /* Generate strings of register contents.  */
  56   hexvalue (rx->r0, regs[0], 8);
  57   hexvalue (rx->r1, regs[1], 8);
  58   hexvalue (rx->r2, regs[2], 8);
  59   hexvalue (rx->r3, regs[3], 8);
  60   hexvalue (rx->r4, regs[4], 8);
  61   hexvalue (rx->r5, regs[5], 8);
  62   hexvalue (rx->r6, regs[6], 8);
  63   hexvalue (rx->r7, regs[7], 8);
  64   hexvalue (rx->r8, regs[8], 8);
  65   hexvalue (rx->r9, regs[9], 8);
  66   hexvalue (rx->r10, regs[10], 8);
  67   hexvalue (rx->r11, regs[11], 8);
  68   hexvalue (rx->r12, regs[12], 8);
  69   hexvalue (rx->r13, regs[13], 8);
  70   hexvalue (ctx->usp, regs[14], 8);
  71   hexvalue (rx->irp, regs[17], 8);
  72   hexvalue (rx->dccr, regs[15], 8);
  73   hexvalue (rx->srp, regs[16], 8);
  74
  75   /* Generate the output.  */
  76   ADD_STRING ("Register dump:\n\n  R0: ");
  77   ADD_MEM (regs[0], 8);
  78   ADD_STRING ("  R1: ");
  79   ADD_MEM (regs[1], 8);
  80   ADD_STRING ("  R2: ");
  81   ADD_MEM (regs[2], 8);
  82   ADD_STRING ("  R3: ");
  83   ADD_MEM (regs[3], 8);
  84   ADD_STRING ("\n  R4: ");
  85   ADD_MEM (regs[4], 8);
  86   ADD_STRING ("  R5: ");
  87   ADD_MEM (regs[5], 8);
  88   ADD_STRING ("  R6: ");
  89   ADD_MEM (regs[6], 8);
  90   ADD_STRING ("  R7: ");
  91   ADD_MEM (regs[7], 8);
  92   ADD_STRING ("\n  R8: ");
  93   ADD_MEM (regs[8], 8);
  94   ADD_STRING ("  R9: ");
  95   ADD_MEM (regs[9], 8);
  96   ADD_STRING (" R10: ");
  97   ADD_MEM (regs[10], 8);
  98   ADD_STRING (" R11: ");
  99   ADD_MEM (regs[11], 8);
 100   ADD_STRING ("\n R12: ");
 101   ADD_MEM (regs[12], 8);
 102   ADD_STRING (" R13: ");
 103   ADD_MEM (regs[13], 8);
 104   ADD_STRING ("  SP: ");
 105   ADD_MEM (regs[14], 8);
 106   ADD_STRING ("  PC: ");
 107   ADD_MEM (regs[17], 8);
 108   ADD_STRING ("\nDCCR: ");
 109   ADD_MEM (regs[15], 8);
 110   ADD_STRING (" SRP: ");
 111   ADD_MEM (regs[16], 4);
 112
 113   /* Write the stuff out.  */
 114   writev (fd, iov, next_iov - iov);
 115 }
 116
 117 #define REGISTER_DUMP register_dump (fd, ctx)