/* OS ABI variant handling for GDB and gdbserver.

  Copyright (C) 2001-2024 Free Software Foundation, Inc.

  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 "gdbsupport/osabi.h"

/* Names associated with each osabi.  */

struct osabi_names
{
 /* The "pretty" name.  */

 const char *pretty;

 /* The triplet regexp, or NULL if not known.  */

 const char *regexp;
};

/* This table matches the indices assigned to enum gdb_osabi.  Keep
  them in sync.  */
static const struct osabi_names gdb_osabi_names[] =
{
#define GDB_OSABI_DEF_FIRST(Enum, Name, Regex)  \
 { Name, Regex },

#define GDB_OSABI_DEF(Enum, Name, Regex)        \
 { Name, Regex },

#define GDB_OSABI_DEF_LAST(Enum, Name, Regex)   \
 { Name, Regex }

#include "gdbsupport/osabi.def"

#undef GDB_OSABI_DEF_LAST
#undef GDB_OSABI_DEF
#undef GDB_OSABI_DEF_FIRST
};

/* See gdbsupport/osabi.h.  */

const char *
gdbarch_osabi_name (enum gdb_osabi osabi)
{
 if (osabi >= GDB_OSABI_UNKNOWN && osabi < GDB_OSABI_INVALID)
   return gdb_osabi_names[osabi].pretty;

 return gdb_osabi_names[GDB_OSABI_INVALID].pretty;
}

/* See gdbsupport/osabi.h.  */

enum gdb_osabi
osabi_from_tdesc_string (const char *name)
{
 int i;

 for (i = 0; i < ARRAY_SIZE (gdb_osabi_names); i++)
   if (strcmp (name, gdb_osabi_names[i].pretty) == 0)
     {
       /* See note above: the name table matches the indices assigned
          to enum gdb_osabi.  */
       enum gdb_osabi osabi = (enum gdb_osabi) i;

       if (osabi == GDB_OSABI_INVALID)
         return GDB_OSABI_UNKNOWN;
       else
         return osabi;
     }

 return GDB_OSABI_UNKNOWN;
}

/* See gdbsupport/osabi.h.  */

const char *
osabi_triplet_regexp (enum gdb_osabi osabi)
{
 if (osabi >= GDB_OSABI_UNKNOWN && osabi < GDB_OSABI_INVALID)
   return gdb_osabi_names[osabi].regexp;

 return gdb_osabi_names[GDB_OSABI_INVALID].regexp;
}