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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [sim/] [ppc/] [misc.c] - Blame information for rev 227

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Line No. Rev Author Line
1 227 jeremybenn
/*  This file is part of the program psim.
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    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
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    along with this program; if not, write to the Free Software
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    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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    */
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#include <stdio.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include "build-config.h"
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#include "misc.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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void
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error (char *msg, ...)
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{
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  va_list ap;
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  va_start(ap, msg);
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  vprintf(msg, ap);
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  va_end(ap);
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  exit (1);
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}
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void *
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zalloc(long size)
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{
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  void *memory = malloc(size);
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  if (memory == NULL)
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    error("zalloc failed\n");
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  memset(memory, 0, size);
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  return memory;
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}
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void
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dumpf (int indent, char *msg, ...)
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{
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  va_list ap;
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  for (; indent > 0; indent--)
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    printf(" ");
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  va_start(ap, msg);
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  vprintf(msg, ap);
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  va_end(ap);
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}
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unsigned
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a2i(const char *a)
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{
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  int neg = 0;
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  int base = 10;
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  unsigned num = 0;
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  int looping;
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  while (isspace (*a))
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    a++;
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  if (*a == '-') {
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    neg = 1;
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    a++;
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  }
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  if (*a == '0') {
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    if (a[1] == 'x' || a[1] == 'X') {
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      a += 2;
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      base = 16;
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    }
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    else
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      base = 8;
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  }
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  looping = 1;
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  while (looping) {
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    int ch = *a++;
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    switch (base) {
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    default:
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      looping = 0;
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      break;
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    case 10:
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      if (ch >= '0' && ch <= '9') {
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        num = (num * 10) + (ch - '0');
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      } else {
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        looping = 0;
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      }
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      break;
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    case 8:
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      if (ch >= '0' && ch <= '7') {
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        num = (num * 8) + (ch - '0');
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      } else {
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        looping = 0;
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      }
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      break;
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    case 16:
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      if (ch >= '0' && ch <= '9') {
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        num = (num * 16) + (ch - '0');
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      } else if (ch >= 'a' && ch <= 'f') {
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        num = (num * 16) + (ch - 'a' + 10);
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      } else if (ch >= 'A' && ch <= 'F') {
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        num = (num * 16) + (ch - 'A' + 10);
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      } else {
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        looping = 0;
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      }
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      break;
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    }
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  }
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  if (neg)
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    num = - num;
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  return num;
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}
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unsigned
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target_a2i(int ms_bit_nr,
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           const char *a)
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{
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  if (ms_bit_nr)
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    return (ms_bit_nr - a2i(a));
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  else
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    return a2i(a);
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}
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unsigned
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i2target(int ms_bit_nr,
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         unsigned bit)
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{
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  if (ms_bit_nr)
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    return ms_bit_nr - bit;
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  else
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    return bit;
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}
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int
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name2i(const char *names,
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       const name_map *map)
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{
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  const name_map *curr;
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  const char *name = names;
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  while (*name != '\0') {
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    /* find our name */
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    char *end = strchr(name, ',');
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    char *next;
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    int len;
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    if (end == NULL) {
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      end = strchr(name, '\0');
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      next = end;
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    }
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    else {
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      next = end + 1;
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    }
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    len = end - name;
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    /* look it up */
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    curr = map;
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    while (curr->name != NULL) {
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      if (strncmp(curr->name, name, len) == 0
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          && strlen(curr->name) == len)
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        return curr->i;
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      curr++;
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    }
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    name = next;
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  }
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  /* nothing found, possibly return a default */
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  curr = map;
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  while (curr->name != NULL)
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    curr++;
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  if (curr->i >= 0)
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    return curr->i;
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  else
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    error("%s contains no valid names\n", names);
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  return 0;
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}
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const char *
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i2name(const int i,
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       const name_map *map)
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{
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  while (map->name != NULL) {
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    if (map->i == i)
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      return map->name;
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    map++;
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  }
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  error("map lookup failed for %d\n", i);
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  return NULL;
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}

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