Commit | Line | Data |
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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
a98cef7e 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" |
ac99cb0c | 48 | #include "frames.h" |
17e90c5e | 49 | #include "instructions.h" |
8f5cfc81 | 50 | #include "objcodes.h" |
ac99cb0c | 51 | #include "programs.h" |
fb10a008 | 52 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
53 | #include "vm.h" |
54 | ||
a98cef7e KN |
55 | /* I sometimes use this for debugging. */ |
56 | #define vm_puts(OBJ) \ | |
57 | { \ | |
22bcbe8c AW |
58 | scm_display (OBJ, scm_current_error_port ()); \ |
59 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
60 | } |
61 | ||
11ea1aba AW |
62 | /* The VM has a number of internal assertions that shouldn't normally be |
63 | necessary, but might be if you think you found a bug in the VM. */ | |
64 | #define VM_ENABLE_ASSERTIONS | |
65 | ||
66 | /* We can add a mode that ensures that all stack items above the stack pointer | |
67 | are NULL. This is useful for checking the internal consistency of the VM's | |
68 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc AW |
69 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
70 | /* #define VM_ENABLE_STACK_NULLING */ | |
11ea1aba AW |
71 | |
72 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) | |
73 | #define VM_ENABLE_ASSERTIONS | |
74 | #endif | |
75 | ||
a98cef7e | 76 | \f |
a98cef7e KN |
77 | /* |
78 | * VM Continuation | |
79 | */ | |
80 | ||
f9e8c09d | 81 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e | 82 | |
11ea1aba AW |
83 | static void |
84 | vm_mark_stack (SCM *base, scm_t_ptrdiff size, SCM *fp, scm_t_ptrdiff reloc) | |
85 | { | |
86 | SCM *sp, *upper, *lower; | |
87 | sp = base + size - 1; | |
88 | ||
89 | while (sp > base && fp) | |
90 | { | |
91 | upper = SCM_FRAME_UPPER_ADDRESS (fp); | |
92 | lower = SCM_FRAME_LOWER_ADDRESS (fp); | |
93 | ||
94 | for (; sp >= upper; sp--) | |
95 | if (SCM_NIMP (*sp)) | |
96 | { | |
97 | if (scm_in_heap_p (*sp)) | |
98 | scm_gc_mark (*sp); | |
99 | else | |
100 | fprintf (stderr, "BADNESS: crap on the stack: %p\n", *sp); | |
101 | } | |
102 | ||
103 | ||
104 | /* skip ra, mvra */ | |
105 | sp -= 2; | |
106 | ||
107 | /* update fp from the dynamic link */ | |
108 | fp = (SCM*)*sp-- + reloc; | |
109 | ||
b1b942b7 | 110 | /* mark from the el down to the lower address */ |
11ea1aba AW |
111 | for (; sp >= lower; sp--) |
112 | if (*sp && SCM_NIMP (*sp)) | |
113 | scm_gc_mark (*sp); | |
114 | } | |
115 | } | |
116 | ||
bfffd258 AW |
117 | static SCM |
118 | vm_cont_mark (SCM obj) | |
119 | { | |
11ea1aba | 120 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); |
bfffd258 | 121 | |
7aa6f86b AW |
122 | if (p->stack_size) |
123 | vm_mark_stack (p->stack_base, p->stack_size, p->fp + p->reloc, p->reloc); | |
bfffd258 AW |
124 | |
125 | return SCM_BOOL_F; | |
126 | } | |
127 | ||
128 | static scm_sizet | |
129 | vm_cont_free (SCM obj) | |
130 | { | |
131 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); | |
132 | ||
133 | scm_gc_free (p->stack_base, p->stack_size * sizeof (SCM), "stack-base"); | |
134 | scm_gc_free (p, sizeof (struct scm_vm), "vm"); | |
135 | ||
136 | return 0; | |
137 | } | |
a98cef7e KN |
138 | |
139 | static SCM | |
3d5ee0cd | 140 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 141 | { |
bfffd258 AW |
142 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
143 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
144 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
145 | "capture_vm_cont"); | |
11ea1aba | 146 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
147 | if (vp->sp >= vp->stack_base) |
148 | if (!vp->sp[0] || vp->sp[1]) | |
149 | abort (); | |
11ea1aba AW |
150 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
151 | #endif | |
3d5ee0cd | 152 | p->ip = vp->ip; |
7aa6f86b AW |
153 | p->sp = vp->sp; |
154 | p->fp = vp->fp; | |
bfffd258 | 155 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 156 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 157 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
158 | } |
159 | ||
160 | static void | |
3d5ee0cd | 161 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 162 | { |
bfffd258 | 163 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 164 | if (vp->stack_size < p->stack_size) |
a98cef7e | 165 | { |
17e90c5e | 166 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
167 | abort (); |
168 | } | |
11ea1aba AW |
169 | #ifdef VM_ENABLE_STACK_NULLING |
170 | { | |
7aa6f86b | 171 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 172 | if (nzero > 0) |
66db076a AW |
173 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
174 | /* actually nzero should always be negative, because vm_reset_stack will | |
175 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
176 | } |
177 | #endif | |
3d5ee0cd | 178 | vp->ip = p->ip; |
7aa6f86b AW |
179 | vp->sp = p->sp; |
180 | vp->fp = p->fp; | |
bfffd258 AW |
181 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
182 | } | |
183 | ||
184 | /* In theory, a number of vm instances can be active in the call trace, and we | |
185 | only want to reify the continuations of those in the current continuation | |
186 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
187 | and previous values of the *the-vm* fluid within the current continuation | |
188 | root. But we don't have access to continuation roots in the dynwind stack. | |
189 | So, just punt for now -- take the current value of *the-vm*. | |
190 | ||
191 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
192 | continuation root is inside VM code, and call/cc was invoked within that same | |
193 | call to vm_run; but that's currently not implemented. | |
194 | */ | |
195 | SCM | |
196 | scm_vm_capture_continuations (void) | |
197 | { | |
198 | SCM vm = scm_the_vm (); | |
199 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
200 | } | |
201 | ||
202 | void | |
203 | scm_vm_reinstate_continuations (SCM conts) | |
204 | { | |
205 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
206 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
207 | } |
208 | ||
17d1b4bf AW |
209 | struct vm_unwind_data |
210 | { | |
211 | struct scm_vm *vp; | |
212 | SCM *sp; | |
213 | SCM *fp; | |
17d1b4bf AW |
214 | }; |
215 | ||
216 | static void | |
217 | vm_reset_stack (void *data) | |
218 | { | |
219 | struct vm_unwind_data *w = data; | |
66db076a | 220 | struct scm_vm *vp = w->vp; |
17d1b4bf | 221 | |
66db076a AW |
222 | vp->sp = w->sp; |
223 | vp->fp = w->fp; | |
11ea1aba | 224 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a | 225 | memset (vp->sp + 1, 0, (vp->stack_size - (vp->sp + 1 - vp->stack_base)) * sizeof(SCM)); |
11ea1aba | 226 | #endif |
17d1b4bf AW |
227 | } |
228 | ||
b1b942b7 AW |
229 | static void enfalsen_frame (void *p) |
230 | { | |
231 | struct scm_vm *vp = p; | |
232 | vp->trace_frame = SCM_BOOL_F; | |
233 | } | |
234 | ||
235 | static void | |
236 | vm_dispatch_hook (SCM vm, SCM hook, SCM hook_args) | |
237 | { | |
238 | struct scm_vm *vp = SCM_VM_DATA (vm); | |
239 | ||
240 | if (!SCM_FALSEP (vp->trace_frame)) | |
241 | return; | |
242 | ||
243 | scm_dynwind_begin (0); | |
244 | vp->trace_frame = scm_c_make_vm_frame (vm, vp->fp, vp->sp, vp->ip, 0); | |
245 | scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY); | |
246 | ||
247 | scm_c_run_hook (hook, hook_args); | |
248 | ||
249 | scm_dynwind_end (); | |
250 | } | |
251 | ||
17e90c5e KN |
252 | \f |
253 | /* | |
254 | * VM Internal functions | |
255 | */ | |
256 | ||
90b0be20 AW |
257 | static SCM sym_vm_run; |
258 | static SCM sym_vm_error; | |
259 | static SCM sym_debug; | |
17e90c5e KN |
260 | |
261 | static scm_byte_t * | |
262 | vm_fetch_length (scm_byte_t *ip, size_t *lenp) | |
a98cef7e | 263 | { |
4bfb26f5 | 264 | /* NOTE: format defined in system/vm/conv.scm */ |
17e90c5e KN |
265 | *lenp = *ip++; |
266 | if (*lenp < 254) | |
267 | return ip; | |
268 | else if (*lenp == 254) | |
46cd9a34 KN |
269 | { |
270 | int b1 = *ip++; | |
271 | int b2 = *ip++; | |
272 | *lenp = (b1 << 8) + b2; | |
273 | } | |
17e90c5e | 274 | else |
46cd9a34 KN |
275 | { |
276 | int b1 = *ip++; | |
277 | int b2 = *ip++; | |
278 | int b3 = *ip++; | |
279 | int b4 = *ip++; | |
280 | *lenp = (b1 << 24) + (b2 << 16) + (b3 << 8) + b4; | |
281 | } | |
17e90c5e | 282 | return ip; |
a98cef7e KN |
283 | } |
284 | ||
2fda0242 AW |
285 | static SCM |
286 | vm_make_boot_program (long len) | |
287 | { | |
288 | scm_byte_t bytes[6] = {scm_op_mv_call, 0, 0, 1, scm_op_make_int8_1, scm_op_halt}; | |
289 | if (SCM_UNLIKELY (len > 255 || len < 0)) | |
290 | abort (); | |
291 | bytes[1] = (scm_byte_t)len; | |
292 | return scm_c_make_program (bytes, 6, SCM_BOOL_F, SCM_BOOL_F); | |
293 | } | |
294 | ||
a98cef7e KN |
295 | \f |
296 | /* | |
297 | * VM | |
298 | */ | |
299 | ||
c0a25ecc | 300 | #define VM_DEFAULT_STACK_SIZE (16 * 1024) |
17e90c5e KN |
301 | |
302 | #define VM_REGULAR_ENGINE 0 | |
303 | #define VM_DEBUG_ENGINE 1 | |
304 | ||
305 | #if 0 | |
306 | #define VM_NAME vm_regular_engine | |
307 | #define VM_ENGINE VM_REGULAR_ENGINE | |
83495480 | 308 | #include "vm-engine.c" |
17e90c5e KN |
309 | #undef VM_NAME |
310 | #undef VM_ENGINE | |
311 | #endif | |
312 | ||
313 | #define VM_NAME vm_debug_engine | |
314 | #define VM_ENGINE VM_DEBUG_ENGINE | |
83495480 | 315 | #include "vm-engine.c" |
17e90c5e KN |
316 | #undef VM_NAME |
317 | #undef VM_ENGINE | |
318 | ||
f9e8c09d | 319 | scm_t_bits scm_tc16_vm; |
a98cef7e KN |
320 | |
321 | static SCM | |
17e90c5e KN |
322 | make_vm (void) |
323 | #define FUNC_NAME "make_vm" | |
a98cef7e | 324 | { |
17e90c5e | 325 | int i; |
d8eeb67c LC |
326 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
327 | ||
3d5ee0cd | 328 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
d8eeb67c LC |
329 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
330 | "stack-base"); | |
2bbe1533 AW |
331 | #ifdef VM_ENABLE_STACK_NULLING |
332 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
333 | #endif | |
3616e9e9 KN |
334 | vp->stack_limit = vp->stack_base + vp->stack_size - 3; |
335 | vp->ip = NULL; | |
336 | vp->sp = vp->stack_base - 1; | |
337 | vp->fp = NULL; | |
3d5ee0cd KN |
338 | vp->time = 0; |
339 | vp->clock = 0; | |
340 | vp->options = SCM_EOL; | |
17e90c5e | 341 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 342 | vp->hooks[i] = SCM_BOOL_F; |
b1b942b7 | 343 | vp->trace_frame = SCM_BOOL_F; |
3d5ee0cd | 344 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); |
a98cef7e | 345 | } |
17e90c5e | 346 | #undef FUNC_NAME |
a98cef7e KN |
347 | |
348 | static SCM | |
17e90c5e | 349 | vm_mark (SCM obj) |
a98cef7e | 350 | { |
17e90c5e | 351 | int i; |
3d5ee0cd | 352 | struct scm_vm *vp = SCM_VM_DATA (obj); |
17e90c5e | 353 | |
11ea1aba AW |
354 | #ifdef VM_ENABLE_STACK_NULLING |
355 | if (vp->sp >= vp->stack_base) | |
356 | if (!vp->sp[0] || vp->sp[1]) | |
357 | abort (); | |
358 | #endif | |
359 | ||
360 | /* mark the stack, precisely */ | |
361 | vm_mark_stack (vp->stack_base, vp->sp + 1 - vp->stack_base, vp->fp, 0); | |
a98cef7e | 362 | |
af988bbf | 363 | /* mark other objects */ |
17e90c5e | 364 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 365 | scm_gc_mark (vp->hooks[i]); |
b1b942b7 AW |
366 | |
367 | scm_gc_mark (vp->trace_frame); | |
368 | ||
3d5ee0cd | 369 | return vp->options; |
a98cef7e KN |
370 | } |
371 | ||
17e90c5e KN |
372 | static scm_sizet |
373 | vm_free (SCM obj) | |
374 | { | |
3d5ee0cd | 375 | struct scm_vm *vp = SCM_VM_DATA (obj); |
d8eeb67c LC |
376 | |
377 | scm_gc_free (vp->stack_base, vp->stack_size * sizeof (SCM), | |
378 | "stack-base"); | |
379 | scm_gc_free (vp, sizeof (struct scm_vm), "vm"); | |
380 | ||
381 | return 0; | |
17e90c5e KN |
382 | } |
383 | ||
17e90c5e KN |
384 | SCM |
385 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
386 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 387 | { |
17e90c5e | 388 | SCM_VALIDATE_PROGRAM (1, program); |
41f248a8 | 389 | return vm_run (vm, program, args); |
a98cef7e | 390 | } |
17e90c5e | 391 | #undef FUNC_NAME |
a98cef7e KN |
392 | |
393 | /* Scheme interface */ | |
394 | ||
395 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
396 | (void), |
397 | "") | |
a98cef7e KN |
398 | #define FUNC_NAME s_scm_vm_version |
399 | { | |
d3518113 | 400 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
401 | } |
402 | #undef FUNC_NAME | |
403 | ||
499a4c07 | 404 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 405 | (void), |
499a4c07 KN |
406 | "") |
407 | #define FUNC_NAME s_scm_the_vm | |
408 | { | |
2bbe1533 | 409 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 410 | |
2bbe1533 AW |
411 | if (SCM_UNLIKELY (SCM_FALSEP ((t->vm)))) |
412 | t->vm = make_vm (); | |
f63ea2ce | 413 | |
2bbe1533 | 414 | return t->vm; |
499a4c07 KN |
415 | } |
416 | #undef FUNC_NAME | |
417 | ||
418 | ||
a98cef7e KN |
419 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
420 | (SCM obj), | |
17e90c5e | 421 | "") |
a98cef7e KN |
422 | #define FUNC_NAME s_scm_vm_p |
423 | { | |
424 | return SCM_BOOL (SCM_VM_P (obj)); | |
425 | } | |
426 | #undef FUNC_NAME | |
427 | ||
428 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
429 | (void), |
430 | "") | |
431 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 432 | { |
17e90c5e | 433 | return make_vm (); |
a98cef7e KN |
434 | } |
435 | #undef FUNC_NAME | |
436 | ||
17e90c5e | 437 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 438 | (SCM vm), |
17e90c5e KN |
439 | "") |
440 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
441 | { |
442 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 443 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
444 | } |
445 | #undef FUNC_NAME | |
446 | ||
447 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
448 | (SCM vm), | |
17e90c5e | 449 | "") |
a98cef7e KN |
450 | #define FUNC_NAME s_scm_vm_sp |
451 | { | |
452 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 453 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
454 | } |
455 | #undef FUNC_NAME | |
456 | ||
457 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
458 | (SCM vm), | |
17e90c5e | 459 | "") |
a98cef7e KN |
460 | #define FUNC_NAME s_scm_vm_fp |
461 | { | |
462 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 463 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
464 | } |
465 | #undef FUNC_NAME | |
466 | ||
17e90c5e KN |
467 | #define VM_DEFINE_HOOK(n) \ |
468 | { \ | |
3d5ee0cd | 469 | struct scm_vm *vp; \ |
17e90c5e | 470 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
471 | vp = SCM_VM_DATA (vm); \ |
472 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 473 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 474 | return vp->hooks[n]; \ |
17e90c5e KN |
475 | } |
476 | ||
477 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 478 | (SCM vm), |
17e90c5e KN |
479 | "") |
480 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 481 | { |
17e90c5e | 482 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
483 | } |
484 | #undef FUNC_NAME | |
485 | ||
17e90c5e KN |
486 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
487 | (SCM vm), | |
488 | "") | |
489 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 490 | { |
17e90c5e | 491 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
492 | } |
493 | #undef FUNC_NAME | |
494 | ||
17e90c5e | 495 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 496 | (SCM vm), |
17e90c5e KN |
497 | "") |
498 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 499 | { |
17e90c5e | 500 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
501 | } |
502 | #undef FUNC_NAME | |
503 | ||
7a0d0cee KN |
504 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
505 | (SCM vm), | |
506 | "") | |
507 | #define FUNC_NAME s_scm_vm_break_hook | |
508 | { | |
509 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
510 | } | |
511 | #undef FUNC_NAME | |
512 | ||
17e90c5e KN |
513 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
514 | (SCM vm), | |
515 | "") | |
516 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 517 | { |
17e90c5e | 518 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
519 | } |
520 | #undef FUNC_NAME | |
521 | ||
17e90c5e KN |
522 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
523 | (SCM vm), | |
524 | "") | |
525 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 526 | { |
17e90c5e | 527 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
528 | } |
529 | #undef FUNC_NAME | |
530 | ||
17e90c5e | 531 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 532 | (SCM vm), |
17e90c5e KN |
533 | "") |
534 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 535 | { |
17e90c5e | 536 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
537 | } |
538 | #undef FUNC_NAME | |
539 | ||
17e90c5e | 540 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 541 | (SCM vm), |
17e90c5e KN |
542 | "") |
543 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 544 | { |
17e90c5e | 545 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
546 | } |
547 | #undef FUNC_NAME | |
548 | ||
17e90c5e KN |
549 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
550 | (SCM vm, SCM key), | |
551 | "") | |
552 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
553 | { |
554 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 555 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
556 | } |
557 | #undef FUNC_NAME | |
558 | ||
17e90c5e KN |
559 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
560 | (SCM vm, SCM key, SCM val), | |
561 | "") | |
562 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
563 | { |
564 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
565 | SCM_VM_DATA (vm)->options |
566 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
567 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
568 | } |
569 | #undef FUNC_NAME | |
570 | ||
17e90c5e | 571 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 572 | (SCM vm), |
17e90c5e KN |
573 | "") |
574 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 575 | { |
17e90c5e KN |
576 | SCM stats; |
577 | ||
a98cef7e | 578 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 579 | |
2d80426a LC |
580 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
581 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 582 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 583 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 584 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
585 | |
586 | return stats; | |
a98cef7e KN |
587 | } |
588 | #undef FUNC_NAME | |
589 | ||
b1b942b7 | 590 | SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0, |
17e90c5e KN |
591 | (SCM vm), |
592 | "") | |
b1b942b7 | 593 | #define FUNC_NAME s_scm_vm_trace_frame |
a98cef7e | 594 | { |
a98cef7e | 595 | SCM_VALIDATE_VM (1, vm); |
b1b942b7 | 596 | return SCM_VM_DATA (vm)->trace_frame; |
a98cef7e KN |
597 | } |
598 | #undef FUNC_NAME | |
599 | ||
600 | \f | |
601 | /* | |
17e90c5e | 602 | * Initialize |
a98cef7e KN |
603 | */ |
604 | ||
07e56b27 AW |
605 | SCM scm_load_compiled_with_vm (SCM file) |
606 | { | |
3de80ed5 | 607 | SCM program = scm_objcode_to_program (scm_load_objcode (file), SCM_EOL); |
07e56b27 | 608 | |
7bbed518 | 609 | return vm_run (scm_the_vm (), program, SCM_EOL); |
07e56b27 AW |
610 | } |
611 | ||
17e90c5e | 612 | void |
07e56b27 | 613 | scm_bootstrap_vm (void) |
17e90c5e | 614 | { |
07e56b27 AW |
615 | static int strappage = 0; |
616 | ||
617 | if (strappage) | |
618 | return; | |
619 | ||
620 | scm_bootstrap_frames (); | |
621 | scm_bootstrap_instructions (); | |
622 | scm_bootstrap_objcodes (); | |
623 | scm_bootstrap_programs (); | |
a98cef7e | 624 | |
17e90c5e KN |
625 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
626 | scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark); | |
627 | scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free); | |
a98cef7e | 628 | |
17e90c5e KN |
629 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
630 | scm_set_smob_mark (scm_tc16_vm, vm_mark); | |
631 | scm_set_smob_free (scm_tc16_vm, vm_free); | |
632 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); | |
a98cef7e | 633 | |
83495480 AW |
634 | scm_c_define ("load-compiled", |
635 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
636 | scm_load_compiled_with_vm)); | |
07e56b27 | 637 | |
90b0be20 AW |
638 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
639 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
640 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
641 | ||
07e56b27 AW |
642 | strappage = 1; |
643 | } | |
644 | ||
645 | void | |
646 | scm_init_vm (void) | |
647 | { | |
648 | scm_bootstrap_vm (); | |
649 | ||
17e90c5e | 650 | #ifndef SCM_MAGIC_SNARFER |
a98cef7e | 651 | #include "vm.x" |
17e90c5e | 652 | #endif |
a98cef7e | 653 | } |
17e90c5e KN |
654 | |
655 | /* | |
656 | Local Variables: | |
657 | c-file-style: "gnu" | |
658 | End: | |
659 | */ |