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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
17e90c5e KN |
2 | * |
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) | |
6 | * any later version. | |
7 | * | |
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. | |
12 | * | |
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 | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
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. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
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. | |
37 | * | |
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. */ | |
41 | ||
13c47753 AW |
42 | #if HAVE_CONFIG_H |
43 | # include <config.h> | |
44 | #endif | |
45 | ||
17e90c5e | 46 | #include <string.h> |
83495480 | 47 | #include "vm-bootstrap.h" |
17e90c5e KN |
48 | #include "instructions.h" |
49 | #include "programs.h" | |
50 | #include "vm.h" | |
51 | ||
52 | \f | |
f9e8c09d | 53 | scm_t_bits scm_tc16_program; |
17e90c5e KN |
54 | |
55 | static SCM zero_vector; | |
56 | ||
57 | SCM | |
58 | scm_c_make_program (void *addr, size_t size, SCM holder) | |
59 | #define FUNC_NAME "scm_c_make_program" | |
60 | { | |
d8eeb67c LC |
61 | struct scm_program *p = scm_gc_malloc (sizeof (struct scm_program), |
62 | "program"); | |
17e90c5e KN |
63 | p->size = size; |
64 | p->nargs = 0; | |
65 | p->nrest = 0; | |
66 | p->nlocs = 0; | |
3d5ee0cd | 67 | p->nexts = 0; |
ac99cb0c | 68 | p->meta = SCM_BOOL_F; |
17e90c5e KN |
69 | p->objs = zero_vector; |
70 | p->external = SCM_EOL; | |
71 | p->holder = holder; | |
72 | ||
73 | /* If nobody holds bytecode's address, then allocate a new memory */ | |
29711eb9 AW |
74 | if (SCM_FALSEP (holder)) |
75 | { | |
76 | p->base = scm_gc_malloc (size, "program-base"); | |
77 | memcpy (p->base, addr, size); | |
78 | } | |
17e90c5e KN |
79 | else |
80 | p->base = addr; | |
81 | ||
82 | SCM_RETURN_NEWSMOB (scm_tc16_program, p); | |
83 | } | |
84 | #undef FUNC_NAME | |
85 | ||
86 | SCM | |
3d5ee0cd | 87 | scm_c_make_closure (SCM program, SCM external) |
17e90c5e | 88 | { |
ac02b386 KN |
89 | SCM prog = scm_c_make_program (0, 0, program); |
90 | *SCM_PROGRAM_DATA (prog) = *SCM_PROGRAM_DATA (program); | |
ac99cb0c | 91 | SCM_PROGRAM_DATA (prog)->external = external; |
17e90c5e KN |
92 | return prog; |
93 | } | |
94 | ||
95 | static SCM | |
96 | program_mark (SCM obj) | |
97 | { | |
98 | struct scm_program *p = SCM_PROGRAM_DATA (obj); | |
ac99cb0c | 99 | scm_gc_mark (p->meta); |
17e90c5e KN |
100 | scm_gc_mark (p->objs); |
101 | scm_gc_mark (p->external); | |
102 | return p->holder; | |
103 | } | |
104 | ||
105 | static scm_sizet | |
106 | program_free (SCM obj) | |
107 | { | |
108 | struct scm_program *p = SCM_PROGRAM_DATA (obj); | |
109 | scm_sizet size = (sizeof (struct scm_program)); | |
d8eeb67c | 110 | |
17e90c5e | 111 | if (SCM_FALSEP (p->holder)) |
d8eeb67c LC |
112 | scm_gc_free (p->base, p->size, "program-base"); |
113 | ||
114 | scm_gc_free (p, size, "program"); | |
115 | ||
116 | return 0; | |
17e90c5e KN |
117 | } |
118 | ||
17e90c5e KN |
119 | static SCM |
120 | program_apply (SCM program, SCM args) | |
121 | { | |
499a4c07 | 122 | return scm_vm_apply (scm_the_vm (), program, args); |
17e90c5e KN |
123 | } |
124 | ||
125 | \f | |
126 | /* | |
127 | * Scheme interface | |
128 | */ | |
129 | ||
130 | SCM_DEFINE (scm_program_p, "program?", 1, 0, 0, | |
131 | (SCM obj), | |
132 | "") | |
133 | #define FUNC_NAME s_scm_program_p | |
134 | { | |
135 | return SCM_BOOL (SCM_PROGRAM_P (obj)); | |
136 | } | |
137 | #undef FUNC_NAME | |
138 | ||
ac99cb0c KN |
139 | SCM_DEFINE (scm_program_base, "program-base", 1, 0, 0, |
140 | (SCM program), | |
141 | "") | |
142 | #define FUNC_NAME s_scm_program_base | |
143 | { | |
144 | SCM_VALIDATE_PROGRAM (1, program); | |
145 | ||
f41cb00c | 146 | return scm_from_ulong ((unsigned long) SCM_PROGRAM_DATA (program)->base); |
ac99cb0c KN |
147 | } |
148 | #undef FUNC_NAME | |
149 | ||
17e90c5e KN |
150 | SCM_DEFINE (scm_program_arity, "program-arity", 1, 0, 0, |
151 | (SCM program), | |
152 | "") | |
153 | #define FUNC_NAME s_scm_program_arity | |
ac99cb0c KN |
154 | { |
155 | struct scm_program *p; | |
156 | ||
157 | SCM_VALIDATE_PROGRAM (1, program); | |
158 | ||
159 | p = SCM_PROGRAM_DATA (program); | |
2d80426a LC |
160 | return SCM_LIST4 (SCM_I_MAKINUM (p->nargs), |
161 | SCM_I_MAKINUM (p->nrest), | |
162 | SCM_I_MAKINUM (p->nlocs), | |
163 | SCM_I_MAKINUM (p->nexts)); | |
ac99cb0c KN |
164 | } |
165 | #undef FUNC_NAME | |
166 | ||
167 | SCM_DEFINE (scm_program_meta, "program-meta", 1, 0, 0, | |
168 | (SCM program), | |
169 | "") | |
170 | #define FUNC_NAME s_scm_program_meta | |
17e90c5e KN |
171 | { |
172 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 173 | return SCM_PROGRAM_DATA (program)->meta; |
17e90c5e KN |
174 | } |
175 | #undef FUNC_NAME | |
176 | ||
177 | SCM_DEFINE (scm_program_objects, "program-objects", 1, 0, 0, | |
178 | (SCM program), | |
179 | "") | |
180 | #define FUNC_NAME s_scm_program_objects | |
181 | { | |
182 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 183 | return SCM_PROGRAM_DATA (program)->objs; |
17e90c5e KN |
184 | } |
185 | #undef FUNC_NAME | |
186 | ||
187 | SCM_DEFINE (scm_program_external, "program-external", 1, 0, 0, | |
188 | (SCM program), | |
189 | "") | |
190 | #define FUNC_NAME s_scm_program_external | |
191 | { | |
192 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 193 | return SCM_PROGRAM_DATA (program)->external; |
17e90c5e KN |
194 | } |
195 | #undef FUNC_NAME | |
196 | ||
62082959 LC |
197 | SCM_DEFINE (scm_program_external_set_x, "program-external-set!", 2, 0, 0, |
198 | (SCM program, SCM external), | |
199 | "Modify the list of closure variables of @var{program} (for " | |
200 | "debugging purposes).") | |
201 | #define FUNC_NAME s_scm_program_external_set_x | |
202 | { | |
203 | SCM_VALIDATE_PROGRAM (1, program); | |
204 | SCM_VALIDATE_LIST (2, external); | |
205 | SCM_PROGRAM_DATA (program)->external = external; | |
206 | return SCM_UNSPECIFIED; | |
207 | } | |
208 | #undef FUNC_NAME | |
209 | ||
17e90c5e KN |
210 | SCM_DEFINE (scm_program_bytecode, "program-bytecode", 1, 0, 0, |
211 | (SCM program), | |
fa19602c | 212 | "Return a u8vector containing @var{program}'s bytecode.") |
17e90c5e KN |
213 | #define FUNC_NAME s_scm_program_bytecode |
214 | { | |
fa19602c | 215 | size_t size; |
b6368dbb | 216 | scm_t_uint8 *c_bytecode; |
fa19602c | 217 | |
17e90c5e | 218 | SCM_VALIDATE_PROGRAM (1, program); |
fa19602c LC |
219 | |
220 | size = SCM_PROGRAM_DATA (program)->size; | |
221 | c_bytecode = malloc (size); | |
222 | if (!c_bytecode) | |
223 | return SCM_BOOL_F; | |
224 | ||
225 | memcpy (c_bytecode, SCM_PROGRAM_DATA (program)->base, size); | |
226 | ||
227 | return scm_take_u8vector (c_bytecode, size); | |
17e90c5e KN |
228 | } |
229 | #undef FUNC_NAME | |
230 | ||
fa19602c | 231 | |
17e90c5e KN |
232 | \f |
233 | void | |
07e56b27 | 234 | scm_bootstrap_programs (void) |
17e90c5e KN |
235 | { |
236 | zero_vector = scm_permanent_object (scm_c_make_vector (0, SCM_BOOL_F)); | |
237 | ||
238 | scm_tc16_program = scm_make_smob_type ("program", 0); | |
239 | scm_set_smob_mark (scm_tc16_program, program_mark); | |
240 | scm_set_smob_free (scm_tc16_program, program_free); | |
17e90c5e | 241 | scm_set_smob_apply (scm_tc16_program, program_apply, 0, 0, 1); |
07e56b27 | 242 | } |
17e90c5e | 243 | |
07e56b27 AW |
244 | void |
245 | scm_init_programs (void) | |
246 | { | |
247 | scm_bootstrap_vm (); | |
248 | ||
17e90c5e KN |
249 | #ifndef SCM_MAGIC_SNARFER |
250 | #include "programs.x" | |
251 | #endif | |
252 | } | |
253 | ||
254 | /* | |
255 | Local Variables: | |
256 | c-file-style: "gnu" | |
257 | End: | |
258 | */ |