Commit | Line | Data |
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20d47c39 | 1 | /* Copyright (C) 2001, 2009 Free Software Foundation, Inc. |
a98cef7e | 2 | * |
560b9c25 | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
a98cef7e | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
560b9c25 AW |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
a98cef7e | 12 | * |
560b9c25 AW |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
560b9c25 | 17 | */ |
a98cef7e | 18 | |
13c47753 AW |
19 | #if HAVE_CONFIG_H |
20 | # include <config.h> | |
21 | #endif | |
22 | ||
da8b4747 | 23 | #include <stdlib.h> |
6d14383e | 24 | #include <alloca.h> |
17e90c5e | 25 | #include <string.h> |
e3eb628d LC |
26 | #include <assert.h> |
27 | ||
28 | #include "libguile/boehm-gc.h" | |
29 | #include <gc/gc_mark.h> | |
30 | ||
560b9c25 | 31 | #include "_scm.h" |
83495480 | 32 | #include "vm-bootstrap.h" |
ac99cb0c | 33 | #include "frames.h" |
17e90c5e | 34 | #include "instructions.h" |
8f5cfc81 | 35 | #include "objcodes.h" |
ac99cb0c | 36 | #include "programs.h" |
fb10a008 | 37 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
38 | #include "vm.h" |
39 | ||
a98cef7e KN |
40 | /* I sometimes use this for debugging. */ |
41 | #define vm_puts(OBJ) \ | |
42 | { \ | |
22bcbe8c AW |
43 | scm_display (OBJ, scm_current_error_port ()); \ |
44 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
45 | } |
46 | ||
11ea1aba AW |
47 | /* The VM has a number of internal assertions that shouldn't normally be |
48 | necessary, but might be if you think you found a bug in the VM. */ | |
49 | #define VM_ENABLE_ASSERTIONS | |
50 | ||
51 | /* We can add a mode that ensures that all stack items above the stack pointer | |
52 | are NULL. This is useful for checking the internal consistency of the VM's | |
53 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc | 54 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
747a1635 | 55 | /* NB! If you enable this, search for NULLING in throw.c */ |
616167fc | 56 | /* #define VM_ENABLE_STACK_NULLING */ |
11ea1aba | 57 | |
53e28ed9 AW |
58 | /* #define VM_ENABLE_PARANOID_ASSERTIONS */ |
59 | ||
11ea1aba AW |
60 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) |
61 | #define VM_ENABLE_ASSERTIONS | |
62 | #endif | |
63 | ||
e3eb628d LC |
64 | /* When defined, arrange so that the GC doesn't scan the VM stack beyond its |
65 | current SP. This should help avoid excess data retention. See | |
66 | http://thread.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/3001 | |
67 | for a discussion. */ | |
68 | #define VM_ENABLE_PRECISE_STACK_GC_SCAN | |
69 | ||
70 | ||
a98cef7e | 71 | \f |
a98cef7e KN |
72 | /* |
73 | * VM Continuation | |
74 | */ | |
75 | ||
f9e8c09d | 76 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e | 77 | |
a98cef7e | 78 | static SCM |
3d5ee0cd | 79 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 80 | { |
bfffd258 AW |
81 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
82 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
83 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
84 | "capture_vm_cont"); | |
11ea1aba | 85 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
86 | if (vp->sp >= vp->stack_base) |
87 | if (!vp->sp[0] || vp->sp[1]) | |
88 | abort (); | |
11ea1aba AW |
89 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
90 | #endif | |
3d5ee0cd | 91 | p->ip = vp->ip; |
7aa6f86b AW |
92 | p->sp = vp->sp; |
93 | p->fp = vp->fp; | |
bfffd258 | 94 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 95 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 96 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
97 | } |
98 | ||
99 | static void | |
3d5ee0cd | 100 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 101 | { |
bfffd258 | 102 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 103 | if (vp->stack_size < p->stack_size) |
a98cef7e | 104 | { |
17e90c5e | 105 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
106 | abort (); |
107 | } | |
11ea1aba AW |
108 | #ifdef VM_ENABLE_STACK_NULLING |
109 | { | |
7aa6f86b | 110 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 111 | if (nzero > 0) |
66db076a AW |
112 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
113 | /* actually nzero should always be negative, because vm_reset_stack will | |
114 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
115 | } |
116 | #endif | |
3d5ee0cd | 117 | vp->ip = p->ip; |
7aa6f86b AW |
118 | vp->sp = p->sp; |
119 | vp->fp = p->fp; | |
bfffd258 AW |
120 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
121 | } | |
122 | ||
123 | /* In theory, a number of vm instances can be active in the call trace, and we | |
124 | only want to reify the continuations of those in the current continuation | |
125 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
126 | and previous values of the *the-vm* fluid within the current continuation | |
127 | root. But we don't have access to continuation roots in the dynwind stack. | |
128 | So, just punt for now -- take the current value of *the-vm*. | |
129 | ||
130 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
131 | continuation root is inside VM code, and call/cc was invoked within that same | |
132 | call to vm_run; but that's currently not implemented. | |
133 | */ | |
134 | SCM | |
135 | scm_vm_capture_continuations (void) | |
136 | { | |
137 | SCM vm = scm_the_vm (); | |
138 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
139 | } | |
140 | ||
141 | void | |
142 | scm_vm_reinstate_continuations (SCM conts) | |
143 | { | |
144 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
145 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
146 | } |
147 | ||
b1b942b7 AW |
148 | static void enfalsen_frame (void *p) |
149 | { | |
150 | struct scm_vm *vp = p; | |
151 | vp->trace_frame = SCM_BOOL_F; | |
152 | } | |
153 | ||
154 | static void | |
6d14383e | 155 | vm_dispatch_hook (struct scm_vm *vp, SCM hook, SCM hook_args) |
b1b942b7 | 156 | { |
b1b942b7 AW |
157 | if (!SCM_FALSEP (vp->trace_frame)) |
158 | return; | |
159 | ||
160 | scm_dynwind_begin (0); | |
6d14383e AW |
161 | // FIXME, stack holder should be the vm |
162 | vp->trace_frame = scm_c_make_vm_frame (SCM_BOOL_F, vp->fp, vp->sp, vp->ip, 0); | |
b1b942b7 AW |
163 | scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY); |
164 | ||
165 | scm_c_run_hook (hook, hook_args); | |
166 | ||
167 | scm_dynwind_end (); | |
168 | } | |
169 | ||
17e90c5e KN |
170 | \f |
171 | /* | |
172 | * VM Internal functions | |
173 | */ | |
174 | ||
90b0be20 AW |
175 | static SCM sym_vm_run; |
176 | static SCM sym_vm_error; | |
177 | static SCM sym_debug; | |
17e90c5e | 178 | |
2fda0242 | 179 | static SCM |
d2d7acd5 | 180 | really_make_boot_program (long nargs) |
2fda0242 | 181 | { |
5bd047ce | 182 | SCM u8vec; |
28b119ee | 183 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 1, |
e5dc27b8 | 184 | scm_op_make_int8_1, scm_op_nop, scm_op_nop, scm_op_nop, |
28b119ee AW |
185 | scm_op_halt }; |
186 | struct scm_objcode *bp; | |
3b9e095b | 187 | SCM ret; |
5bd047ce | 188 | |
53e28ed9 | 189 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 190 | abort (); |
28b119ee AW |
191 | text[1] = (scm_t_uint8)nargs; |
192 | ||
d7e7a02a | 193 | bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text)); |
28b119ee AW |
194 | memcpy (bp->base, text, sizeof (text)); |
195 | bp->nargs = 0; | |
196 | bp->nrest = 0; | |
197 | bp->nlocs = 0; | |
198 | bp->len = sizeof(text); | |
199 | bp->metalen = 0; | |
200 | bp->unused = 0; | |
201 | ||
202 | u8vec = scm_take_u8vector ((scm_t_uint8*)bp, | |
203 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 204 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 205 | SCM_BOOL_F, SCM_BOOL_F); |
3b9e095b | 206 | SCM_SET_SMOB_FLAGS (ret, SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 207 | |
3b9e095b | 208 | return ret; |
2fda0242 | 209 | } |
d2d7acd5 AW |
210 | #define NUM_BOOT_PROGS 8 |
211 | static SCM | |
212 | vm_make_boot_program (long nargs) | |
213 | { | |
214 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
215 | ||
216 | if (SCM_UNLIKELY (!programs[0])) | |
217 | { | |
218 | int i; | |
219 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
220 | programs[i] = scm_permanent_object (really_make_boot_program (i)); | |
221 | } | |
222 | ||
223 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
224 | return programs[nargs]; | |
225 | else | |
226 | return really_make_boot_program (nargs); | |
227 | } | |
2fda0242 | 228 | |
a98cef7e KN |
229 | \f |
230 | /* | |
231 | * VM | |
232 | */ | |
233 | ||
b7393ea1 AW |
234 | static SCM |
235 | resolve_variable (SCM what, SCM program_module) | |
236 | { | |
237 | if (SCM_LIKELY (SCM_SYMBOLP (what))) | |
238 | { | |
239 | if (SCM_LIKELY (scm_module_system_booted_p | |
240 | && scm_is_true (program_module))) | |
241 | /* might longjmp */ | |
242 | return scm_module_lookup (program_module, what); | |
243 | else | |
244 | { | |
245 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
246 | if (scm_is_false (v)) | |
247 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
248 | else | |
249 | return v; | |
250 | } | |
251 | } | |
252 | else | |
253 | { | |
254 | SCM mod; | |
255 | /* compilation of @ or @@ | |
256 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
257 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
258 | */ | |
259 | mod = scm_resolve_module (SCM_CAR (what)); | |
260 | if (scm_is_true (SCM_CADDR (what))) | |
261 | mod = scm_module_public_interface (mod); | |
262 | if (SCM_FALSEP (mod)) | |
263 | scm_misc_error (NULL, "no such module: ~S", | |
264 | scm_list_1 (SCM_CAR (what))); | |
265 | /* might longjmp */ | |
266 | return scm_module_lookup (mod, SCM_CADR (what)); | |
267 | } | |
268 | } | |
269 | ||
270 | ||
51e9ba2f | 271 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 272 | |
17e90c5e | 273 | #define VM_NAME vm_regular_engine |
6d14383e AW |
274 | #define FUNC_NAME "vm-regular-engine" |
275 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 276 | #include "vm-engine.c" |
17e90c5e | 277 | #undef VM_NAME |
6d14383e | 278 | #undef FUNC_NAME |
17e90c5e | 279 | #undef VM_ENGINE |
17e90c5e KN |
280 | |
281 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
282 | #define FUNC_NAME "vm-debug-engine" |
283 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 284 | #include "vm-engine.c" |
17e90c5e | 285 | #undef VM_NAME |
6d14383e | 286 | #undef FUNC_NAME |
17e90c5e KN |
287 | #undef VM_ENGINE |
288 | ||
6d14383e AW |
289 | static const scm_t_vm_engine vm_engines[] = |
290 | { vm_regular_engine, vm_debug_engine }; | |
291 | ||
f9e8c09d | 292 | scm_t_bits scm_tc16_vm; |
a98cef7e | 293 | |
e3eb628d LC |
294 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
295 | ||
296 | /* The GC "kind" for the VM stack. */ | |
297 | static int vm_stack_gc_kind; | |
298 | ||
299 | #endif | |
300 | ||
a98cef7e | 301 | static SCM |
17e90c5e KN |
302 | make_vm (void) |
303 | #define FUNC_NAME "make_vm" | |
a98cef7e | 304 | { |
17e90c5e | 305 | int i; |
747a1635 AW |
306 | |
307 | if (!scm_tc16_vm) | |
308 | return SCM_BOOL_F; /* not booted yet */ | |
309 | ||
d8eeb67c LC |
310 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
311 | ||
3d5ee0cd | 312 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
e3eb628d LC |
313 | |
314 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
315 | vp->stack_base = GC_generic_malloc (vp->stack_size * sizeof (SCM), | |
316 | vm_stack_gc_kind); | |
317 | ||
318 | /* Keep a pointer to VP so that `vm_stack_mark ()' can know what the stack | |
319 | top is. */ | |
320 | *vp->stack_base = PTR2SCM (vp); | |
321 | vp->stack_base++; | |
322 | vp->stack_size--; | |
323 | #else | |
d8eeb67c LC |
324 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
325 | "stack-base"); | |
e3eb628d LC |
326 | #endif |
327 | ||
2bbe1533 AW |
328 | #ifdef VM_ENABLE_STACK_NULLING |
329 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
330 | #endif | |
75d315e1 | 331 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
332 | vp->ip = NULL; |
333 | vp->sp = vp->stack_base - 1; | |
334 | vp->fp = NULL; | |
6d14383e | 335 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd KN |
336 | vp->time = 0; |
337 | vp->clock = 0; | |
338 | vp->options = SCM_EOL; | |
17e90c5e | 339 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 340 | vp->hooks[i] = SCM_BOOL_F; |
b1b942b7 | 341 | vp->trace_frame = SCM_BOOL_F; |
3d5ee0cd | 342 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); |
a98cef7e | 343 | } |
17e90c5e | 344 | #undef FUNC_NAME |
a98cef7e | 345 | |
e3eb628d LC |
346 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
347 | ||
348 | /* Mark the VM stack region between its base and its current top. */ | |
349 | static struct GC_ms_entry * | |
350 | vm_stack_mark (GC_word *addr, struct GC_ms_entry *mark_stack_ptr, | |
351 | struct GC_ms_entry *mark_stack_limit, GC_word env) | |
352 | { | |
353 | GC_word *word; | |
354 | const struct scm_vm *vm; | |
355 | ||
356 | /* The first word of the VM stack should contain a pointer to the | |
357 | corresponding VM. */ | |
358 | vm = * ((struct scm_vm **) addr); | |
359 | ||
78747ac6 LC |
360 | if ((SCM *) addr != vm->stack_base - 1 |
361 | || vm->stack_limit - vm->stack_base != vm->stack_size) | |
e3eb628d LC |
362 | /* ADDR must be a pointer to a free-list element, which we must ignore |
363 | (see warning in <gc/gc_mark.h>). */ | |
364 | return mark_stack_ptr; | |
365 | ||
e3eb628d LC |
366 | for (word = (GC_word *) vm->stack_base; word <= (GC_word *) vm->sp; word++) |
367 | mark_stack_ptr = GC_MARK_AND_PUSH ((* (GC_word **) word), | |
368 | mark_stack_ptr, mark_stack_limit, | |
369 | NULL); | |
370 | ||
371 | return mark_stack_ptr; | |
372 | } | |
373 | ||
374 | #endif /* VM_ENABLE_PRECISE_STACK_GC_SCAN */ | |
375 | ||
376 | ||
6d14383e | 377 | SCM |
4abef68f | 378 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 379 | { |
4abef68f | 380 | struct scm_vm *vp = SCM_VM_DATA (vm); |
6d14383e AW |
381 | return vm_engines[vp->engine](vp, program, argv, nargs); |
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 | { |
6d14383e AW |
388 | SCM *argv; |
389 | int i, nargs; | |
390 | ||
391 | SCM_VALIDATE_VM (1, vm); | |
392 | SCM_VALIDATE_PROGRAM (2, program); | |
393 | ||
394 | nargs = scm_ilength (args); | |
395 | if (SCM_UNLIKELY (nargs < 0)) | |
396 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
397 | ||
398 | argv = alloca(nargs * sizeof(SCM)); | |
399 | for (i = 0; i < nargs; i++) | |
400 | { | |
401 | argv[i] = SCM_CAR (args); | |
402 | args = SCM_CDR (args); | |
403 | } | |
404 | ||
4abef68f | 405 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 406 | } |
17e90c5e | 407 | #undef FUNC_NAME |
a98cef7e KN |
408 | |
409 | /* Scheme interface */ | |
410 | ||
411 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
412 | (void), |
413 | "") | |
a98cef7e KN |
414 | #define FUNC_NAME s_scm_vm_version |
415 | { | |
d3518113 | 416 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
417 | } |
418 | #undef FUNC_NAME | |
419 | ||
499a4c07 | 420 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 421 | (void), |
499a4c07 KN |
422 | "") |
423 | #define FUNC_NAME s_scm_the_vm | |
424 | { | |
2bbe1533 | 425 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 426 | |
2bbe1533 AW |
427 | if (SCM_UNLIKELY (SCM_FALSEP ((t->vm)))) |
428 | t->vm = make_vm (); | |
f63ea2ce | 429 | |
2bbe1533 | 430 | return t->vm; |
499a4c07 KN |
431 | } |
432 | #undef FUNC_NAME | |
433 | ||
434 | ||
a98cef7e KN |
435 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
436 | (SCM obj), | |
17e90c5e | 437 | "") |
a98cef7e KN |
438 | #define FUNC_NAME s_scm_vm_p |
439 | { | |
440 | return SCM_BOOL (SCM_VM_P (obj)); | |
441 | } | |
442 | #undef FUNC_NAME | |
443 | ||
444 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
445 | (void), |
446 | "") | |
447 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 448 | { |
17e90c5e | 449 | return make_vm (); |
a98cef7e KN |
450 | } |
451 | #undef FUNC_NAME | |
452 | ||
17e90c5e | 453 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 454 | (SCM vm), |
17e90c5e KN |
455 | "") |
456 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
457 | { |
458 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 459 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
460 | } |
461 | #undef FUNC_NAME | |
462 | ||
463 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
464 | (SCM vm), | |
17e90c5e | 465 | "") |
a98cef7e KN |
466 | #define FUNC_NAME s_scm_vm_sp |
467 | { | |
468 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 469 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
470 | } |
471 | #undef FUNC_NAME | |
472 | ||
473 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
474 | (SCM vm), | |
17e90c5e | 475 | "") |
a98cef7e KN |
476 | #define FUNC_NAME s_scm_vm_fp |
477 | { | |
478 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 479 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
480 | } |
481 | #undef FUNC_NAME | |
482 | ||
17e90c5e KN |
483 | #define VM_DEFINE_HOOK(n) \ |
484 | { \ | |
3d5ee0cd | 485 | struct scm_vm *vp; \ |
17e90c5e | 486 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
487 | vp = SCM_VM_DATA (vm); \ |
488 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 489 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 490 | return vp->hooks[n]; \ |
17e90c5e KN |
491 | } |
492 | ||
493 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 494 | (SCM vm), |
17e90c5e KN |
495 | "") |
496 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 497 | { |
17e90c5e | 498 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
499 | } |
500 | #undef FUNC_NAME | |
501 | ||
17e90c5e KN |
502 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
503 | (SCM vm), | |
504 | "") | |
505 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 506 | { |
17e90c5e | 507 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
508 | } |
509 | #undef FUNC_NAME | |
510 | ||
17e90c5e | 511 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 512 | (SCM vm), |
17e90c5e KN |
513 | "") |
514 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 515 | { |
17e90c5e | 516 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
517 | } |
518 | #undef FUNC_NAME | |
519 | ||
7a0d0cee KN |
520 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
521 | (SCM vm), | |
522 | "") | |
523 | #define FUNC_NAME s_scm_vm_break_hook | |
524 | { | |
525 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
526 | } | |
527 | #undef FUNC_NAME | |
528 | ||
17e90c5e KN |
529 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
530 | (SCM vm), | |
531 | "") | |
532 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 533 | { |
17e90c5e | 534 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
535 | } |
536 | #undef FUNC_NAME | |
537 | ||
17e90c5e KN |
538 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
539 | (SCM vm), | |
540 | "") | |
541 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 542 | { |
17e90c5e | 543 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
544 | } |
545 | #undef FUNC_NAME | |
546 | ||
17e90c5e | 547 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 548 | (SCM vm), |
17e90c5e KN |
549 | "") |
550 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 551 | { |
17e90c5e | 552 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
553 | } |
554 | #undef FUNC_NAME | |
555 | ||
17e90c5e | 556 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 557 | (SCM vm), |
17e90c5e KN |
558 | "") |
559 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 560 | { |
17e90c5e | 561 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
562 | } |
563 | #undef FUNC_NAME | |
564 | ||
17e90c5e KN |
565 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
566 | (SCM vm, SCM key), | |
567 | "") | |
568 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
569 | { |
570 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 571 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
572 | } |
573 | #undef FUNC_NAME | |
574 | ||
17e90c5e KN |
575 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
576 | (SCM vm, SCM key, SCM val), | |
577 | "") | |
578 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
579 | { |
580 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
581 | SCM_VM_DATA (vm)->options |
582 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
583 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
584 | } |
585 | #undef FUNC_NAME | |
586 | ||
17e90c5e | 587 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 588 | (SCM vm), |
17e90c5e KN |
589 | "") |
590 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 591 | { |
17e90c5e KN |
592 | SCM stats; |
593 | ||
a98cef7e | 594 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 595 | |
2d80426a LC |
596 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
597 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 598 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 599 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 600 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
601 | |
602 | return stats; | |
a98cef7e KN |
603 | } |
604 | #undef FUNC_NAME | |
605 | ||
b1b942b7 | 606 | SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0, |
17e90c5e KN |
607 | (SCM vm), |
608 | "") | |
b1b942b7 | 609 | #define FUNC_NAME s_scm_vm_trace_frame |
a98cef7e | 610 | { |
a98cef7e | 611 | SCM_VALIDATE_VM (1, vm); |
b1b942b7 | 612 | return SCM_VM_DATA (vm)->trace_frame; |
a98cef7e KN |
613 | } |
614 | #undef FUNC_NAME | |
615 | ||
616 | \f | |
617 | /* | |
17e90c5e | 618 | * Initialize |
a98cef7e KN |
619 | */ |
620 | ||
07e56b27 AW |
621 | SCM scm_load_compiled_with_vm (SCM file) |
622 | { | |
53e28ed9 | 623 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 624 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 625 | |
4abef68f | 626 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
627 | } |
628 | ||
17e90c5e | 629 | void |
07e56b27 | 630 | scm_bootstrap_vm (void) |
17e90c5e | 631 | { |
07e56b27 AW |
632 | static int strappage = 0; |
633 | ||
634 | if (strappage) | |
635 | return; | |
636 | ||
637 | scm_bootstrap_frames (); | |
638 | scm_bootstrap_instructions (); | |
639 | scm_bootstrap_objcodes (); | |
640 | scm_bootstrap_programs (); | |
a98cef7e | 641 | |
17e90c5e | 642 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
a98cef7e | 643 | |
17e90c5e | 644 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
17e90c5e | 645 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); |
a98cef7e | 646 | |
83495480 AW |
647 | scm_c_define ("load-compiled", |
648 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
649 | scm_load_compiled_with_vm)); | |
07e56b27 | 650 | |
90b0be20 AW |
651 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
652 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
653 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
654 | ||
60ae5ca2 AW |
655 | scm_c_register_extension ("libguile", "scm_init_vm", |
656 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
657 | ||
07e56b27 | 658 | strappage = 1; |
e3eb628d LC |
659 | |
660 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
661 | vm_stack_gc_kind = | |
662 | GC_new_kind (GC_new_free_list (), | |
663 | GC_MAKE_PROC (GC_new_proc (vm_stack_mark), 0), | |
664 | 0, 1); | |
665 | ||
666 | #endif | |
07e56b27 AW |
667 | } |
668 | ||
669 | void | |
670 | scm_init_vm (void) | |
671 | { | |
672 | scm_bootstrap_vm (); | |
673 | ||
17e90c5e | 674 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 675 | #include "libguile/vm.x" |
17e90c5e | 676 | #endif |
a98cef7e | 677 | } |
17e90c5e KN |
678 | |
679 | /* | |
680 | Local Variables: | |
681 | c-file-style: "gnu" | |
682 | End: | |
683 | */ |