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> |
560b9c25 | 26 | #include "_scm.h" |
83495480 | 27 | #include "vm-bootstrap.h" |
ac99cb0c | 28 | #include "frames.h" |
17e90c5e | 29 | #include "instructions.h" |
8f5cfc81 | 30 | #include "objcodes.h" |
ac99cb0c | 31 | #include "programs.h" |
fb10a008 | 32 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
33 | #include "vm.h" |
34 | ||
a98cef7e KN |
35 | /* I sometimes use this for debugging. */ |
36 | #define vm_puts(OBJ) \ | |
37 | { \ | |
22bcbe8c AW |
38 | scm_display (OBJ, scm_current_error_port ()); \ |
39 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
40 | } |
41 | ||
11ea1aba AW |
42 | /* The VM has a number of internal assertions that shouldn't normally be |
43 | necessary, but might be if you think you found a bug in the VM. */ | |
44 | #define VM_ENABLE_ASSERTIONS | |
45 | ||
46 | /* We can add a mode that ensures that all stack items above the stack pointer | |
47 | are NULL. This is useful for checking the internal consistency of the VM's | |
48 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc | 49 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
747a1635 | 50 | /* NB! If you enable this, search for NULLING in throw.c */ |
616167fc | 51 | /* #define VM_ENABLE_STACK_NULLING */ |
11ea1aba | 52 | |
53e28ed9 AW |
53 | /* #define VM_ENABLE_PARANOID_ASSERTIONS */ |
54 | ||
11ea1aba AW |
55 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) |
56 | #define VM_ENABLE_ASSERTIONS | |
57 | #endif | |
58 | ||
a98cef7e | 59 | \f |
a98cef7e KN |
60 | /* |
61 | * VM Continuation | |
62 | */ | |
63 | ||
f9e8c09d | 64 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e | 65 | |
a98cef7e | 66 | static SCM |
3d5ee0cd | 67 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 68 | { |
bfffd258 AW |
69 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
70 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
71 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
72 | "capture_vm_cont"); | |
11ea1aba | 73 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
74 | if (vp->sp >= vp->stack_base) |
75 | if (!vp->sp[0] || vp->sp[1]) | |
76 | abort (); | |
11ea1aba AW |
77 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
78 | #endif | |
3d5ee0cd | 79 | p->ip = vp->ip; |
7aa6f86b AW |
80 | p->sp = vp->sp; |
81 | p->fp = vp->fp; | |
bfffd258 | 82 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 83 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 84 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
85 | } |
86 | ||
87 | static void | |
3d5ee0cd | 88 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 89 | { |
bfffd258 | 90 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 91 | if (vp->stack_size < p->stack_size) |
a98cef7e | 92 | { |
17e90c5e | 93 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
94 | abort (); |
95 | } | |
11ea1aba AW |
96 | #ifdef VM_ENABLE_STACK_NULLING |
97 | { | |
7aa6f86b | 98 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 99 | if (nzero > 0) |
66db076a AW |
100 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
101 | /* actually nzero should always be negative, because vm_reset_stack will | |
102 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
103 | } |
104 | #endif | |
3d5ee0cd | 105 | vp->ip = p->ip; |
7aa6f86b AW |
106 | vp->sp = p->sp; |
107 | vp->fp = p->fp; | |
bfffd258 AW |
108 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
109 | } | |
110 | ||
111 | /* In theory, a number of vm instances can be active in the call trace, and we | |
112 | only want to reify the continuations of those in the current continuation | |
113 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
114 | and previous values of the *the-vm* fluid within the current continuation | |
115 | root. But we don't have access to continuation roots in the dynwind stack. | |
116 | So, just punt for now -- take the current value of *the-vm*. | |
117 | ||
118 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
119 | continuation root is inside VM code, and call/cc was invoked within that same | |
120 | call to vm_run; but that's currently not implemented. | |
121 | */ | |
122 | SCM | |
123 | scm_vm_capture_continuations (void) | |
124 | { | |
125 | SCM vm = scm_the_vm (); | |
126 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
127 | } | |
128 | ||
129 | void | |
130 | scm_vm_reinstate_continuations (SCM conts) | |
131 | { | |
132 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
133 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
134 | } |
135 | ||
b1b942b7 AW |
136 | static void enfalsen_frame (void *p) |
137 | { | |
138 | struct scm_vm *vp = p; | |
139 | vp->trace_frame = SCM_BOOL_F; | |
140 | } | |
141 | ||
142 | static void | |
6d14383e | 143 | vm_dispatch_hook (struct scm_vm *vp, SCM hook, SCM hook_args) |
b1b942b7 | 144 | { |
b1b942b7 AW |
145 | if (!SCM_FALSEP (vp->trace_frame)) |
146 | return; | |
147 | ||
148 | scm_dynwind_begin (0); | |
6d14383e AW |
149 | // FIXME, stack holder should be the vm |
150 | vp->trace_frame = scm_c_make_vm_frame (SCM_BOOL_F, vp->fp, vp->sp, vp->ip, 0); | |
b1b942b7 AW |
151 | scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY); |
152 | ||
153 | scm_c_run_hook (hook, hook_args); | |
154 | ||
155 | scm_dynwind_end (); | |
156 | } | |
157 | ||
17e90c5e KN |
158 | \f |
159 | /* | |
160 | * VM Internal functions | |
161 | */ | |
162 | ||
90b0be20 AW |
163 | static SCM sym_vm_run; |
164 | static SCM sym_vm_error; | |
165 | static SCM sym_debug; | |
17e90c5e | 166 | |
2fda0242 | 167 | static SCM |
d2d7acd5 | 168 | really_make_boot_program (long nargs) |
2fda0242 | 169 | { |
5bd047ce | 170 | SCM u8vec; |
28b119ee AW |
171 | /* Make sure "bytes" is 64-bit aligned. */ |
172 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 1, | |
e5dc27b8 | 173 | scm_op_make_int8_1, scm_op_nop, scm_op_nop, scm_op_nop, |
28b119ee AW |
174 | scm_op_halt }; |
175 | struct scm_objcode *bp; | |
3b9e095b | 176 | SCM ret; |
5bd047ce | 177 | |
53e28ed9 | 178 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 179 | abort (); |
28b119ee AW |
180 | text[1] = (scm_t_uint8)nargs; |
181 | ||
182 | bp = scm_gc_malloc (sizeof (struct scm_objcode) + sizeof (text), | |
183 | "make-u8vector"); | |
184 | memcpy (bp->base, text, sizeof (text)); | |
185 | bp->nargs = 0; | |
186 | bp->nrest = 0; | |
187 | bp->nlocs = 0; | |
188 | bp->len = sizeof(text); | |
189 | bp->metalen = 0; | |
190 | bp->unused = 0; | |
191 | ||
192 | u8vec = scm_take_u8vector ((scm_t_uint8*)bp, | |
193 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 194 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 195 | SCM_BOOL_F, SCM_BOOL_F); |
3b9e095b | 196 | SCM_SET_SMOB_FLAGS (ret, SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 197 | |
3b9e095b | 198 | return ret; |
2fda0242 | 199 | } |
d2d7acd5 AW |
200 | #define NUM_BOOT_PROGS 8 |
201 | static SCM | |
202 | vm_make_boot_program (long nargs) | |
203 | { | |
204 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
205 | ||
206 | if (SCM_UNLIKELY (!programs[0])) | |
207 | { | |
208 | int i; | |
209 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
210 | programs[i] = scm_permanent_object (really_make_boot_program (i)); | |
211 | } | |
212 | ||
213 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
214 | return programs[nargs]; | |
215 | else | |
216 | return really_make_boot_program (nargs); | |
217 | } | |
2fda0242 | 218 | |
a98cef7e KN |
219 | \f |
220 | /* | |
221 | * VM | |
222 | */ | |
223 | ||
b7393ea1 AW |
224 | static SCM |
225 | resolve_variable (SCM what, SCM program_module) | |
226 | { | |
227 | if (SCM_LIKELY (SCM_SYMBOLP (what))) | |
228 | { | |
229 | if (SCM_LIKELY (scm_module_system_booted_p | |
230 | && scm_is_true (program_module))) | |
231 | /* might longjmp */ | |
232 | return scm_module_lookup (program_module, what); | |
233 | else | |
234 | { | |
235 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
236 | if (scm_is_false (v)) | |
237 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
238 | else | |
239 | return v; | |
240 | } | |
241 | } | |
242 | else | |
243 | { | |
244 | SCM mod; | |
245 | /* compilation of @ or @@ | |
246 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
247 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
248 | */ | |
249 | mod = scm_resolve_module (SCM_CAR (what)); | |
250 | if (scm_is_true (SCM_CADDR (what))) | |
251 | mod = scm_module_public_interface (mod); | |
252 | if (SCM_FALSEP (mod)) | |
253 | scm_misc_error (NULL, "no such module: ~S", | |
254 | scm_list_1 (SCM_CAR (what))); | |
255 | /* might longjmp */ | |
256 | return scm_module_lookup (mod, SCM_CADR (what)); | |
257 | } | |
258 | } | |
259 | ||
260 | ||
51e9ba2f | 261 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 262 | |
17e90c5e | 263 | #define VM_NAME vm_regular_engine |
6d14383e AW |
264 | #define FUNC_NAME "vm-regular-engine" |
265 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 266 | #include "vm-engine.c" |
17e90c5e | 267 | #undef VM_NAME |
6d14383e | 268 | #undef FUNC_NAME |
17e90c5e | 269 | #undef VM_ENGINE |
17e90c5e KN |
270 | |
271 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
272 | #define FUNC_NAME "vm-debug-engine" |
273 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 274 | #include "vm-engine.c" |
17e90c5e | 275 | #undef VM_NAME |
6d14383e | 276 | #undef FUNC_NAME |
17e90c5e KN |
277 | #undef VM_ENGINE |
278 | ||
6d14383e AW |
279 | static const scm_t_vm_engine vm_engines[] = |
280 | { vm_regular_engine, vm_debug_engine }; | |
281 | ||
f9e8c09d | 282 | scm_t_bits scm_tc16_vm; |
a98cef7e KN |
283 | |
284 | static SCM | |
17e90c5e KN |
285 | make_vm (void) |
286 | #define FUNC_NAME "make_vm" | |
a98cef7e | 287 | { |
17e90c5e | 288 | int i; |
747a1635 AW |
289 | |
290 | if (!scm_tc16_vm) | |
291 | return SCM_BOOL_F; /* not booted yet */ | |
292 | ||
d8eeb67c LC |
293 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
294 | ||
3d5ee0cd | 295 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
d8eeb67c LC |
296 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
297 | "stack-base"); | |
2bbe1533 AW |
298 | #ifdef VM_ENABLE_STACK_NULLING |
299 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
300 | #endif | |
75d315e1 | 301 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
302 | vp->ip = NULL; |
303 | vp->sp = vp->stack_base - 1; | |
304 | vp->fp = NULL; | |
6d14383e | 305 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd KN |
306 | vp->time = 0; |
307 | vp->clock = 0; | |
308 | vp->options = SCM_EOL; | |
17e90c5e | 309 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 310 | vp->hooks[i] = SCM_BOOL_F; |
b1b942b7 | 311 | vp->trace_frame = SCM_BOOL_F; |
3d5ee0cd | 312 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); |
a98cef7e | 313 | } |
17e90c5e | 314 | #undef FUNC_NAME |
a98cef7e | 315 | |
6d14383e | 316 | SCM |
4abef68f | 317 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 318 | { |
4abef68f | 319 | struct scm_vm *vp = SCM_VM_DATA (vm); |
6d14383e AW |
320 | return vm_engines[vp->engine](vp, program, argv, nargs); |
321 | } | |
322 | ||
17e90c5e KN |
323 | SCM |
324 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
325 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 326 | { |
6d14383e AW |
327 | SCM *argv; |
328 | int i, nargs; | |
329 | ||
330 | SCM_VALIDATE_VM (1, vm); | |
331 | SCM_VALIDATE_PROGRAM (2, program); | |
332 | ||
333 | nargs = scm_ilength (args); | |
334 | if (SCM_UNLIKELY (nargs < 0)) | |
335 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
336 | ||
337 | argv = alloca(nargs * sizeof(SCM)); | |
338 | for (i = 0; i < nargs; i++) | |
339 | { | |
340 | argv[i] = SCM_CAR (args); | |
341 | args = SCM_CDR (args); | |
342 | } | |
343 | ||
4abef68f | 344 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 345 | } |
17e90c5e | 346 | #undef FUNC_NAME |
a98cef7e KN |
347 | |
348 | /* Scheme interface */ | |
349 | ||
350 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
351 | (void), |
352 | "") | |
a98cef7e KN |
353 | #define FUNC_NAME s_scm_vm_version |
354 | { | |
d3518113 | 355 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
356 | } |
357 | #undef FUNC_NAME | |
358 | ||
499a4c07 | 359 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 360 | (void), |
499a4c07 KN |
361 | "") |
362 | #define FUNC_NAME s_scm_the_vm | |
363 | { | |
2bbe1533 | 364 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 365 | |
2bbe1533 AW |
366 | if (SCM_UNLIKELY (SCM_FALSEP ((t->vm)))) |
367 | t->vm = make_vm (); | |
f63ea2ce | 368 | |
2bbe1533 | 369 | return t->vm; |
499a4c07 KN |
370 | } |
371 | #undef FUNC_NAME | |
372 | ||
373 | ||
a98cef7e KN |
374 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
375 | (SCM obj), | |
17e90c5e | 376 | "") |
a98cef7e KN |
377 | #define FUNC_NAME s_scm_vm_p |
378 | { | |
379 | return SCM_BOOL (SCM_VM_P (obj)); | |
380 | } | |
381 | #undef FUNC_NAME | |
382 | ||
383 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
384 | (void), |
385 | "") | |
386 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 387 | { |
17e90c5e | 388 | return make_vm (); |
a98cef7e KN |
389 | } |
390 | #undef FUNC_NAME | |
391 | ||
17e90c5e | 392 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 393 | (SCM vm), |
17e90c5e KN |
394 | "") |
395 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
396 | { |
397 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 398 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
399 | } |
400 | #undef FUNC_NAME | |
401 | ||
402 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
403 | (SCM vm), | |
17e90c5e | 404 | "") |
a98cef7e KN |
405 | #define FUNC_NAME s_scm_vm_sp |
406 | { | |
407 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 408 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
409 | } |
410 | #undef FUNC_NAME | |
411 | ||
412 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
413 | (SCM vm), | |
17e90c5e | 414 | "") |
a98cef7e KN |
415 | #define FUNC_NAME s_scm_vm_fp |
416 | { | |
417 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 418 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
419 | } |
420 | #undef FUNC_NAME | |
421 | ||
17e90c5e KN |
422 | #define VM_DEFINE_HOOK(n) \ |
423 | { \ | |
3d5ee0cd | 424 | struct scm_vm *vp; \ |
17e90c5e | 425 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
426 | vp = SCM_VM_DATA (vm); \ |
427 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 428 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 429 | return vp->hooks[n]; \ |
17e90c5e KN |
430 | } |
431 | ||
432 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 433 | (SCM vm), |
17e90c5e KN |
434 | "") |
435 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 436 | { |
17e90c5e | 437 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
438 | } |
439 | #undef FUNC_NAME | |
440 | ||
17e90c5e KN |
441 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
442 | (SCM vm), | |
443 | "") | |
444 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 445 | { |
17e90c5e | 446 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
447 | } |
448 | #undef FUNC_NAME | |
449 | ||
17e90c5e | 450 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 451 | (SCM vm), |
17e90c5e KN |
452 | "") |
453 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 454 | { |
17e90c5e | 455 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
456 | } |
457 | #undef FUNC_NAME | |
458 | ||
7a0d0cee KN |
459 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
460 | (SCM vm), | |
461 | "") | |
462 | #define FUNC_NAME s_scm_vm_break_hook | |
463 | { | |
464 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
465 | } | |
466 | #undef FUNC_NAME | |
467 | ||
17e90c5e KN |
468 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
469 | (SCM vm), | |
470 | "") | |
471 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 472 | { |
17e90c5e | 473 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
474 | } |
475 | #undef FUNC_NAME | |
476 | ||
17e90c5e KN |
477 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
478 | (SCM vm), | |
479 | "") | |
480 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 481 | { |
17e90c5e | 482 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
483 | } |
484 | #undef FUNC_NAME | |
485 | ||
17e90c5e | 486 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 487 | (SCM vm), |
17e90c5e KN |
488 | "") |
489 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 490 | { |
17e90c5e | 491 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
492 | } |
493 | #undef FUNC_NAME | |
494 | ||
17e90c5e | 495 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 496 | (SCM vm), |
17e90c5e KN |
497 | "") |
498 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 499 | { |
17e90c5e | 500 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
501 | } |
502 | #undef FUNC_NAME | |
503 | ||
17e90c5e KN |
504 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
505 | (SCM vm, SCM key), | |
506 | "") | |
507 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
508 | { |
509 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 510 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
511 | } |
512 | #undef FUNC_NAME | |
513 | ||
17e90c5e KN |
514 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
515 | (SCM vm, SCM key, SCM val), | |
516 | "") | |
517 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
518 | { |
519 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
520 | SCM_VM_DATA (vm)->options |
521 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
522 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
523 | } |
524 | #undef FUNC_NAME | |
525 | ||
17e90c5e | 526 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 527 | (SCM vm), |
17e90c5e KN |
528 | "") |
529 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 530 | { |
17e90c5e KN |
531 | SCM stats; |
532 | ||
a98cef7e | 533 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 534 | |
2d80426a LC |
535 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
536 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 537 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 538 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 539 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
540 | |
541 | return stats; | |
a98cef7e KN |
542 | } |
543 | #undef FUNC_NAME | |
544 | ||
b1b942b7 | 545 | SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0, |
17e90c5e KN |
546 | (SCM vm), |
547 | "") | |
b1b942b7 | 548 | #define FUNC_NAME s_scm_vm_trace_frame |
a98cef7e | 549 | { |
a98cef7e | 550 | SCM_VALIDATE_VM (1, vm); |
b1b942b7 | 551 | return SCM_VM_DATA (vm)->trace_frame; |
a98cef7e KN |
552 | } |
553 | #undef FUNC_NAME | |
554 | ||
555 | \f | |
556 | /* | |
17e90c5e | 557 | * Initialize |
a98cef7e KN |
558 | */ |
559 | ||
07e56b27 AW |
560 | SCM scm_load_compiled_with_vm (SCM file) |
561 | { | |
53e28ed9 | 562 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 563 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 564 | |
4abef68f | 565 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
566 | } |
567 | ||
17e90c5e | 568 | void |
07e56b27 | 569 | scm_bootstrap_vm (void) |
17e90c5e | 570 | { |
07e56b27 AW |
571 | static int strappage = 0; |
572 | ||
573 | if (strappage) | |
574 | return; | |
575 | ||
576 | scm_bootstrap_frames (); | |
577 | scm_bootstrap_instructions (); | |
578 | scm_bootstrap_objcodes (); | |
579 | scm_bootstrap_programs (); | |
a98cef7e | 580 | |
17e90c5e | 581 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
a98cef7e | 582 | |
17e90c5e | 583 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
17e90c5e | 584 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); |
a98cef7e | 585 | |
83495480 AW |
586 | scm_c_define ("load-compiled", |
587 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
588 | scm_load_compiled_with_vm)); | |
07e56b27 | 589 | |
90b0be20 AW |
590 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
591 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
592 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
593 | ||
60ae5ca2 AW |
594 | scm_c_register_extension ("libguile", "scm_init_vm", |
595 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
596 | ||
07e56b27 AW |
597 | strappage = 1; |
598 | } | |
599 | ||
600 | void | |
601 | scm_init_vm (void) | |
602 | { | |
603 | scm_bootstrap_vm (); | |
604 | ||
17e90c5e | 605 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 606 | #include "libguile/vm.x" |
17e90c5e | 607 | #endif |
a98cef7e | 608 | } |
17e90c5e KN |
609 | |
610 | /* | |
611 | Local Variables: | |
612 | c-file-style: "gnu" | |
613 | End: | |
614 | */ |