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/* The IGEN simulator generator for GDB, the GNU Debugger.

   Copyright 2002, 2007, 2008 Free Software Foundation, Inc.

   Contributed by Andrew Cagney.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <stdio.h>

#include <stdarg.h>

#include <ctype.h>

#include "config.h"

#include "misc.h"

#ifdef HAVE_STDLIB_H

#include <stdlib.h>

#endif

#ifdef HAVE_STRING_H

#include <string.h>

#else

#ifdef HAVE_STRINGS_H

#include <strings.h>

#endif

#endif

/* NB: Because warning and error can be interchanged, neither append a

   trailing '\n' */

void

error (const line_ref *line, char *msg, ...)

{

  va_list ap;

  if (line != NULL)

    fprintf (stderr, "%s:%d: ", line->file_name, line->line_nr);

  va_start (ap, msg);

  vfprintf (stderr, msg, ap);

  va_end (ap);

  exit (1);

}

void

warning (const line_ref *line, char *msg, ...)

{

  va_list ap;

  if (line != NULL)

    fprintf (stderr, "%s:%d: warning: ", line->file_name, line->line_nr);

  va_start (ap, msg);

  vfprintf (stderr, msg, ap);

  va_end (ap);

}

void

notify (const line_ref *line, char *msg, ...)

{

  va_list ap;

  if (line != NULL)

    fprintf (stdout, "%s %d: info: ", line->file_name, line->line_nr);

  va_start (ap, msg);

  vfprintf (stdout, msg, ap);

  va_end (ap);

}

void *

zalloc (long size)

{

  void *memory = malloc (size);

  if (memory == NULL)

    ERROR ("zalloc failed");

  memset (memory, 0, size);

  return memory;

}

unsigned long long

a2i (const char *a)

{

  int neg = 0;

  int base = 10;

  unsigned long long num = 0;

  int looping;

  while (isspace (*a))

    a++;

  if (strcmp (a, "true") == 0 || strcmp (a, "TRUE") == 0)

    return 1;

  if (strcmp (a, "false") == 0 || strcmp (a, "false") == 0)

    return 0;

  if (*a == '-')

    {

      neg = 1;

      a++;

    }

  if (*a == '0')

    {

      if (a[1] == 'x' || a[1] == 'X')

        {

          a += 2;

          base = 16;

        }

      else if (a[1] == 'b' || a[1] == 'b')

        {

          a += 2;

          base = 2;

        }

      else

        base = 8;

    }

  looping = 1;

  while (looping)

    {

      int ch = *a++;

      switch (base)

        {

        default:

          looping = 0;

          break;

        case 2:

          if (ch >= '0' && ch <= '1')

            {

              num = (num * 2) + (ch - '0');

            }

          else

            {

              looping = 0;

            }

          break;

        case 10:

          if (ch >= '0' && ch <= '9')

            {

              num = (num * 10) + (ch - '0');

            }

          else

            {

              looping = 0;

            }

          break;

        case 8:

          if (ch >= '0' && ch <= '7')

            {

              num = (num * 8) + (ch - '0');

            }

          else

            {

              looping = 0;

            }

          break;

        case 16:

          if (ch >= '0' && ch <= '9')

            {

              num = (num * 16) + (ch - '0');

            }

          else if (ch >= 'a' && ch <= 'f')

            {

              num = (num * 16) + (ch - 'a' + 10);

            }

          else if (ch >= 'A' && ch <= 'F')

            {

              num = (num * 16) + (ch - 'A' + 10);

            }

          else

            {

              looping = 0;

            }

          break;

        }

    }

  if (neg)

    num = -num;

  return num;

}

unsigned

target_a2i (int ms_bit_nr, const char *a)

{

  if (ms_bit_nr)

    return (ms_bit_nr - a2i (a));

  else

    return a2i (a);

}

unsigned

i2target (int ms_bit_nr, unsigned bit)

{

  if (ms_bit_nr)

    return ms_bit_nr - bit;

  else

    return bit;

}

int

name2i (const char *names, const name_map * map)

{

  const name_map *curr;

  const char *name = names;

  while (*name != '\0')

    {

      /* find our name */

      char *end = strchr (name, ',');

      char *next;

      unsigned len;

      if (end == NULL)

        {

          end = strchr (name, '\0');

          next = end;

        }

      else

        {

          next = end + 1;

        }

      len = end - name;

      /* look it up */

      curr = map;

      while (curr->name != NULL)

        {

          if (strncmp (curr->name, name, len) == 0

              && strlen (curr->name) == len)

            return curr->i;

          curr++;

        }

      name = next;

    }

  /* nothing found, possibly return a default */

  curr = map;

  while (curr->name != NULL)

    curr++;

  if (curr->i >= 0)

    return curr->i;

  else

    error (NULL, "%s contains no valid names", names);

  return 0;

}

const char *

i2name (const int i, const name_map * map)

{

  while (map->name != NULL)

    {

      if (map->i == i)

        return map->name;

      map++;

    }

  error (NULL, "map lookup failed for %d\n", i);

  return NULL;

}