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83 lines
3.4 KiB
C
83 lines
3.4 KiB
C
/* Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifndef _SCM_OBJCODES_H_
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#define _SCM_OBJCODES_H_
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#include <libguile.h>
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/* Objcode data should be directly mappable to this C structure. */
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struct scm_objcode
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{
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scm_t_uint32 len; /* the maximum index of base[] */
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scm_t_uint32 metalen; /* well, i lie. this many bytes at the end of
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base[] for metadata */
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/* In C99, we'd have:
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scm_t_uint8 base[]; */
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};
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/* Return a pointer to the base of objcode OBJ. */
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#define SCM_C_OBJCODE_BASE(obj) \
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((scm_t_uint8 *)(obj) + sizeof (struct scm_objcode))
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#define SCM_OBJCODE_TYPE_MMAP (0)
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#define SCM_OBJCODE_TYPE_BYTEVECTOR (1)
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#define SCM_OBJCODE_TYPE_SLICE (2)
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#define SCM_OBJCODE_TYPE_STATIC (3)
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#define SCM_OBJCODE_P(x) (SCM_NIMP (x) && SCM_TYP7 (x) == scm_tc7_objcode)
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#define SCM_OBJCODE_DATA(x) ((struct scm_objcode *) SCM_CELL_WORD_1 (x))
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#define SCM_VALIDATE_OBJCODE(p,x) SCM_MAKE_VALIDATE (p, x, OBJCODE_P)
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#define SCM_OBJCODE_LEN(x) (SCM_OBJCODE_DATA (x)->len)
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#define SCM_OBJCODE_META_LEN(x) (SCM_OBJCODE_DATA (x)->metalen)
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#define SCM_OBJCODE_TOTAL_LEN(x) (SCM_OBJCODE_LEN (x) + SCM_OBJCODE_META_LEN (x))
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#define SCM_OBJCODE_BASE(x) (SCM_C_OBJCODE_BASE (SCM_OBJCODE_DATA (x)))
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#define SCM_MAKE_OBJCODE_TAG(type, flags) (scm_tc7_objcode | (type << 8) | (flags << 16))
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#define SCM_OBJCODE_TYPE(x) ((SCM_CELL_WORD_0 (x) >> 8) & 0xff)
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#define SCM_OBJCODE_FLAGS(x) (SCM_CELL_WORD_0 (x) >> 16)
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#define SCM_OBJCODE_IS_MMAP(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_MMAP)
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#define SCM_OBJCODE_IS_BYTEVECTOR(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_BYTEVECTOR)
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#define SCM_OBJCODE_IS_SLICE(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_SLICE)
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#define SCM_OBJCODE_IS_STATIC(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_STATIC)
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#define SCM_OBJCODE_NATIVE_CODE(x) (SCM_CELL_WORD_3 (x))
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#define SCM_SET_OBJCODE_NATIVE_CODE(x, code) (SCM_SET_CELL_WORD_3 (x, code))
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SCM_API SCM scm_c_make_objcode_slice (SCM parent, const scm_t_uint8 *ptr);
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SCM_API SCM scm_load_objcode (SCM file);
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SCM_API SCM scm_objcode_p (SCM obj);
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SCM_API SCM scm_objcode_meta (SCM objcode);
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SCM_API SCM scm_bytecode_to_objcode (SCM bytecode);
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SCM_INTERNAL SCM scm_bytecode_to_native_objcode (SCM bytecode);
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SCM_API SCM scm_objcode_to_bytecode (SCM objcode);
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SCM_API SCM scm_write_objcode (SCM objcode, SCM port);
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SCM_INTERNAL void scm_i_objcode_print (SCM objcode, SCM port,
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scm_print_state *pstate);
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SCM_INTERNAL void scm_bootstrap_objcodes (void);
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SCM_INTERNAL void scm_init_objcodes (void);
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#endif /* _SCM_OBJCODES_H_ */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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