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/* debug.c -- Debug channel support code
   Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org
 
This file is part of OpenRISC 1000 Architectural Simulator.
 
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
 
#define __ORSIM_NO_DEC_DBCH
#include "debug.h"
 
#define DECLARE_DEBUG_CHANNEL(dbch) char __orsim_dbch_##dbch[] = "\0"#dbch;
#include "dbchs.h"
#undef DECLARE_DEBUG_CHANNEL
 
#define DECLARE_DEBUG_CHANNEL(dbch) __orsim_dbch_##dbch,
static char *__orsim_dbchs[] = {
#include "dbchs.h"
NULL };
#undef DECLARE_DEBUG_CHANNEL
 
static const char *debug_classes[] = { "trace", "fixme", "warn", "err" };
 
void orsim_dbg_log(enum __ORSIM_DEBUG_CLASS dbcl, const char *dbch,
                   const char *function, const char *format, ...)
{
  va_list ap;
  static int last_lf = 1; /* There *has* to be a better way */
 
  if(!(dbch[0] & (1 << dbcl)))
    return;
 
  if(last_lf) 
    fprintf(stderr, "%s:%s:%s: ", debug_classes[dbcl], dbch + 1, function);
  last_lf = format[strlen(format) - 1] == '\n'; /* This is wrong... */
  va_start(ap, format);
  vfprintf(stderr, format, ap);
  va_end(ap);
}
 
void orsim_dbcl_set(enum __ORSIM_DEBUG_CLASS dbcl, char *dbch, int on)
{
  if(on)
    dbch[0] |= 1 << dbcl;
  else
    dbch[0] &= ~(1 << dbcl);
}
 
void orsim_dbcl_set_name(enum __ORSIM_DEBUG_CLASS dbcl, const char *dbch, int on)
{
  char **dbchs = __orsim_dbchs; 
 
  for(dbchs = __orsim_dbchs; *dbchs; dbchs++) {
    if(!strcmp(*dbchs + 1, dbch)) {
      orsim_dbcl_set(dbcl, *dbchs, on);
      break;
    }
  }
}
 
void parse_dbchs(const char *str)
{
  enum __ORSIM_DEBUG_CLASS dbcl;
  int i;
  int disen;
  int all;
  const char *cend;
 
  while(*str) {
    cend = strpbrk(str, "+-");
    if(cend == str) {
      all = 1;
    } else {
      for(i = 0; i < 5; i++) {
        if(!strncmp(str, debug_classes[i], cend - str)) {
          dbcl = i;
          break;
        }
      }
      if(i > 4)
        fprintf(stderr, "Unknown class specified\n");
      all = 0;
    }
    disen = *cend == '+' ? 1 : 0;
    str = cend + 1;
    cend = strchr(str, ',');
    if(!cend)
      cend = str + strlen(str);
    for(i = 0; __orsim_dbchs[i]; i++)
      if(!strncmp(str, __orsim_dbchs[i] + 1, cend - str))
        break;
 
    if(!__orsim_dbchs[i])
      fprintf(stderr, "Unknown channel specified\n");
 
    if(all) {
      orsim_dbcl_set(__ORSIM_DBCL_TRACE, __orsim_dbchs[i], disen);
      orsim_dbcl_set(__ORSIM_DBCL_FIXME, __orsim_dbchs[i], disen);
      orsim_dbcl_set(__ORSIM_DBCL_WARN, __orsim_dbchs[i], disen);
      orsim_dbcl_set(__ORSIM_DBCL_ERR, __orsim_dbchs[i], disen);
    } else
      orsim_dbcl_set(dbcl, __orsim_dbchs[i], disen);
    if(*cend)
      str = cend + 1;
    else
      str = cend;
  }
}