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/* Copyright 2001, 2009-2015, 2018 Free Software Foundation, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#ifndef _SCM_LOADER_H_
#define _SCM_LOADER_H_

#include <libguile/scm.h>

#ifdef BUILDING_LIBGUILE

/* The endianness marker in objcode.  */
#ifdef WORDS_BIGENDIAN
# define SCM_OBJCODE_ENDIANNESS "BE"
#else
# define SCM_OBJCODE_ENDIANNESS "LE"
#endif

#define _SCM_CPP_STRINGIFY(x)  # x
#define SCM_CPP_STRINGIFY(x)   _SCM_CPP_STRINGIFY (x)

/* The word size marker in objcode.  */
#define SCM_OBJCODE_WORD_SIZE  SCM_CPP_STRINGIFY (SIZEOF_VOID_P)

/* Major and minor versions must be single characters. */
#define SCM_OBJCODE_MAJOR_VERSION 4
#define SCM_OBJCODE_MINIMUM_MINOR_VERSION 0
#define SCM_OBJCODE_MINOR_VERSION 0
#define SCM_OBJCODE_MAJOR_VERSION_STRING        \
  SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION)
#define SCM_OBJCODE_MINOR_VERSION_STRING        \
  SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION)
#define SCM_OBJCODE_VERSION_STRING                                      \
  SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
#define SCM_OBJCODE_MACHINE_VERSION_STRING                              \
  SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE "-" SCM_OBJCODE_VERSION_STRING

#endif

SCM_API SCM scm_load_thunk_from_file (SCM filename);
SCM_API SCM scm_load_thunk_from_memory (SCM bv);

SCM_INTERNAL const scm_t_uint8 *
scm_find_slot_map_unlocked (const scm_t_uint32 *ip);

SCM_INTERNAL void scm_bootstrap_loader (void);
SCM_INTERNAL void scm_init_loader (void);

#endif /* _SCM_LOADER_H_ */