1 /* Copyright (C) 2001 Free Software Foundation, Inc.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2, or (at your option)
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this software; see the file COPYING. If not, write to
15 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
16 * Boston, MA 02111-1307 USA
18 * As a special exception, the Free Software Foundation gives permission
19 * for additional uses of the text contained in its release of GUILE.
21 * The exception is that, if you link the GUILE library with other files
22 * to produce an executable, this does not by itself cause the
23 * resulting executable to be covered by the GNU General Public License.
24 * Your use of that executable is in no way restricted on account of
25 * linking the GUILE library code into it.
27 * This exception does not however invalidate any other reasons why
28 * the executable file might be covered by the GNU General Public License.
30 * This exception applies only to the code released by the
31 * Free Software Foundation under the name GUILE. If you copy
32 * code from other Free Software Foundation releases into a copy of
33 * GUILE, as the General Public License permits, the exception does
34 * not apply to the code that you add in this way. To avoid misleading
35 * anyone as to the status of such modified files, you must delete
36 * this exception notice from them.
38 * If you write modifications of your own for GUILE, it is your choice
39 * whether to permit this exception to apply to your modifications.
40 * If you do not wish that, delete this exception notice. */
47 #include "vm-bootstrap.h"
48 #include "instructions.h"
54 scm_t_bits scm_tc16_program
;
56 static SCM zero_vector
;
57 static SCM write_program
= SCM_BOOL_F
;
60 scm_c_make_program (void *addr
, size_t size
, SCM holder
)
61 #define FUNC_NAME "scm_c_make_program"
63 struct scm_program
*p
= scm_gc_malloc (sizeof (struct scm_program
),
71 p
->objs
= zero_vector
;
72 p
->external
= SCM_EOL
;
74 p
->module
= scm_current_module ();
76 /* If nobody holds bytecode's address, then allocate a new memory */
77 if (SCM_FALSEP (holder
))
79 p
->base
= scm_gc_malloc (size
, "program-base");
80 memcpy (p
->base
, addr
, size
);
85 SCM_RETURN_NEWSMOB (scm_tc16_program
, p
);
90 scm_c_make_closure (SCM program
, SCM external
)
92 SCM prog
= scm_c_make_program (0, 0, program
);
93 if (!SCM_PROGRAM_P (program
))
95 *SCM_PROGRAM_DATA (prog
) = *SCM_PROGRAM_DATA (program
);
96 SCM_PROGRAM_DATA (prog
)->external
= external
;
101 program_mark (SCM obj
)
103 struct scm_program
*p
= SCM_PROGRAM_DATA (obj
);
104 scm_gc_mark (p
->meta
);
105 scm_gc_mark (p
->objs
);
106 scm_gc_mark (p
->external
);
107 scm_gc_mark (p
->module
);
112 program_free (SCM obj
)
114 struct scm_program
*p
= SCM_PROGRAM_DATA (obj
);
115 scm_sizet size
= (sizeof (struct scm_program
));
117 if (SCM_FALSEP (p
->holder
))
118 scm_gc_free (p
->base
, p
->size
, "program-base");
120 scm_gc_free (p
, size
, "program");
126 program_apply (SCM program
, SCM args
)
128 return scm_vm_apply (scm_the_vm (), program
, args
);
132 program_print (SCM program
, SCM port
, scm_print_state
*pstate
)
134 static int print_error
= 0;
136 if (SCM_FALSEP (write_program
) && scm_module_system_booted_p
)
137 write_program
= scm_module_local_variable
138 (scm_c_resolve_module ("system vm program"),
139 scm_from_locale_symbol ("write-program"));
141 if (SCM_FALSEP (write_program
) || print_error
)
142 return scm_smob_print (program
, port
, pstate
);
145 scm_call_2 (SCM_VARIABLE_REF (write_program
), program
, port
);
155 SCM_DEFINE (scm_program_p
, "program?", 1, 0, 0,
158 #define FUNC_NAME s_scm_program_p
160 return SCM_BOOL (SCM_PROGRAM_P (obj
));
164 SCM_DEFINE (scm_program_base
, "program-base", 1, 0, 0,
167 #define FUNC_NAME s_scm_program_base
169 SCM_VALIDATE_PROGRAM (1, program
);
171 return scm_from_ulong ((unsigned long) SCM_PROGRAM_DATA (program
)->base
);
175 SCM_DEFINE (scm_program_arity
, "program-arity", 1, 0, 0,
178 #define FUNC_NAME s_scm_program_arity
180 struct scm_program
*p
;
182 SCM_VALIDATE_PROGRAM (1, program
);
184 p
= SCM_PROGRAM_DATA (program
);
185 return SCM_LIST4 (SCM_I_MAKINUM (p
->nargs
),
186 SCM_I_MAKINUM (p
->nrest
),
187 SCM_I_MAKINUM (p
->nlocs
),
188 SCM_I_MAKINUM (p
->nexts
));
192 SCM_DEFINE (scm_program_meta
, "program-meta", 1, 0, 0,
195 #define FUNC_NAME s_scm_program_meta
197 SCM_VALIDATE_PROGRAM (1, program
);
198 return SCM_PROGRAM_DATA (program
)->meta
;
203 scm_c_program_source (struct scm_program
*p
, size_t ip
)
205 SCM meta
, sources
, source
;
207 if (scm_is_false (p
->meta
))
209 meta
= scm_call_0 (p
->meta
);
210 if (scm_is_false (meta
))
212 sources
= scm_cadr (meta
);
213 source
= scm_assv (scm_from_size_t (ip
), sources
);
214 if (scm_is_false (source
))
217 return scm_cdr (source
); /* a #(line column file) vector */
220 SCM_DEFINE (scm_program_objects
, "program-objects", 1, 0, 0,
223 #define FUNC_NAME s_scm_program_objects
225 SCM_VALIDATE_PROGRAM (1, program
);
226 return SCM_PROGRAM_DATA (program
)->objs
;
230 SCM_DEFINE (scm_program_module
, "program-module", 1, 0, 0,
233 #define FUNC_NAME s_scm_program_module
235 SCM_VALIDATE_PROGRAM (1, program
);
236 return SCM_PROGRAM_DATA (program
)->module
;
240 SCM_DEFINE (scm_program_external
, "program-external", 1, 0, 0,
243 #define FUNC_NAME s_scm_program_external
245 SCM_VALIDATE_PROGRAM (1, program
);
246 return SCM_PROGRAM_DATA (program
)->external
;
250 SCM_DEFINE (scm_program_external_set_x
, "program-external-set!", 2, 0, 0,
251 (SCM program
, SCM external
),
252 "Modify the list of closure variables of @var{program} (for "
253 "debugging purposes).")
254 #define FUNC_NAME s_scm_program_external_set_x
256 SCM_VALIDATE_PROGRAM (1, program
);
257 SCM_VALIDATE_LIST (2, external
);
258 SCM_PROGRAM_DATA (program
)->external
= external
;
259 return SCM_UNSPECIFIED
;
263 SCM_DEFINE (scm_program_bytecode
, "program-bytecode", 1, 0, 0,
265 "Return a u8vector containing @var{program}'s bytecode.")
266 #define FUNC_NAME s_scm_program_bytecode
269 scm_t_uint8
*c_bytecode
;
271 SCM_VALIDATE_PROGRAM (1, program
);
273 size
= SCM_PROGRAM_DATA (program
)->size
;
274 c_bytecode
= malloc (size
);
278 memcpy (c_bytecode
, SCM_PROGRAM_DATA (program
)->base
, size
);
280 return scm_take_u8vector (c_bytecode
, size
);
287 scm_bootstrap_programs (void)
289 zero_vector
= scm_permanent_object (scm_c_make_vector (0, SCM_BOOL_F
));
291 scm_tc16_program
= scm_make_smob_type ("program", 0);
292 scm_set_smob_mark (scm_tc16_program
, program_mark
);
293 scm_set_smob_free (scm_tc16_program
, program_free
);
294 scm_set_smob_apply (scm_tc16_program
, program_apply
, 0, 0, 1);
295 scm_set_smob_print (scm_tc16_program
, program_print
);
299 scm_init_programs (void)
303 #ifndef SCM_MAGIC_SNARFER
304 #include "programs.x"