Commit | Line | Data |
---|---|---|
8f5cfc81 | 1 | /* Copyright (C) 2001 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 | |
11ea1aba AW |
66 | static void |
67 | vm_mark_stack (SCM *base, scm_t_ptrdiff size, SCM *fp, scm_t_ptrdiff reloc) | |
68 | { | |
69 | SCM *sp, *upper, *lower; | |
70 | sp = base + size - 1; | |
71 | ||
72 | while (sp > base && fp) | |
73 | { | |
74 | upper = SCM_FRAME_UPPER_ADDRESS (fp); | |
75 | lower = SCM_FRAME_LOWER_ADDRESS (fp); | |
76 | ||
77 | for (; sp >= upper; sp--) | |
78 | if (SCM_NIMP (*sp)) | |
79 | { | |
80 | if (scm_in_heap_p (*sp)) | |
81 | scm_gc_mark (*sp); | |
82 | else | |
83 | fprintf (stderr, "BADNESS: crap on the stack: %p\n", *sp); | |
84 | } | |
85 | ||
86 | ||
87 | /* skip ra, mvra */ | |
88 | sp -= 2; | |
89 | ||
90 | /* update fp from the dynamic link */ | |
91 | fp = (SCM*)*sp-- + reloc; | |
92 | ||
b1b942b7 | 93 | /* mark from the el down to the lower address */ |
11ea1aba AW |
94 | for (; sp >= lower; sp--) |
95 | if (*sp && SCM_NIMP (*sp)) | |
96 | scm_gc_mark (*sp); | |
97 | } | |
98 | } | |
99 | ||
bfffd258 AW |
100 | static SCM |
101 | vm_cont_mark (SCM obj) | |
102 | { | |
11ea1aba | 103 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); |
bfffd258 | 104 | |
7aa6f86b AW |
105 | if (p->stack_size) |
106 | vm_mark_stack (p->stack_base, p->stack_size, p->fp + p->reloc, p->reloc); | |
bfffd258 AW |
107 | |
108 | return SCM_BOOL_F; | |
109 | } | |
110 | ||
da8b4747 | 111 | static size_t |
bfffd258 AW |
112 | vm_cont_free (SCM obj) |
113 | { | |
114 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); | |
115 | ||
116 | scm_gc_free (p->stack_base, p->stack_size * sizeof (SCM), "stack-base"); | |
79824460 | 117 | scm_gc_free (p, sizeof (*p), "vm-cont"); |
bfffd258 AW |
118 | |
119 | return 0; | |
120 | } | |
a98cef7e KN |
121 | |
122 | static SCM | |
3d5ee0cd | 123 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 124 | { |
bfffd258 AW |
125 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
126 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
127 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
128 | "capture_vm_cont"); | |
11ea1aba | 129 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
130 | if (vp->sp >= vp->stack_base) |
131 | if (!vp->sp[0] || vp->sp[1]) | |
132 | abort (); | |
11ea1aba AW |
133 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
134 | #endif | |
3d5ee0cd | 135 | p->ip = vp->ip; |
7aa6f86b AW |
136 | p->sp = vp->sp; |
137 | p->fp = vp->fp; | |
bfffd258 | 138 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 139 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 140 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
141 | } |
142 | ||
143 | static void | |
3d5ee0cd | 144 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 145 | { |
bfffd258 | 146 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 147 | if (vp->stack_size < p->stack_size) |
a98cef7e | 148 | { |
17e90c5e | 149 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
150 | abort (); |
151 | } | |
11ea1aba AW |
152 | #ifdef VM_ENABLE_STACK_NULLING |
153 | { | |
7aa6f86b | 154 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 155 | if (nzero > 0) |
66db076a AW |
156 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
157 | /* actually nzero should always be negative, because vm_reset_stack will | |
158 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
159 | } |
160 | #endif | |
3d5ee0cd | 161 | vp->ip = p->ip; |
7aa6f86b AW |
162 | vp->sp = p->sp; |
163 | vp->fp = p->fp; | |
bfffd258 AW |
164 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
165 | } | |
166 | ||
167 | /* In theory, a number of vm instances can be active in the call trace, and we | |
168 | only want to reify the continuations of those in the current continuation | |
169 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
170 | and previous values of the *the-vm* fluid within the current continuation | |
171 | root. But we don't have access to continuation roots in the dynwind stack. | |
172 | So, just punt for now -- take the current value of *the-vm*. | |
173 | ||
174 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
175 | continuation root is inside VM code, and call/cc was invoked within that same | |
176 | call to vm_run; but that's currently not implemented. | |
177 | */ | |
178 | SCM | |
179 | scm_vm_capture_continuations (void) | |
180 | { | |
181 | SCM vm = scm_the_vm (); | |
182 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
183 | } | |
184 | ||
185 | void | |
186 | scm_vm_reinstate_continuations (SCM conts) | |
187 | { | |
188 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
189 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
190 | } |
191 | ||
b1b942b7 AW |
192 | static void enfalsen_frame (void *p) |
193 | { | |
194 | struct scm_vm *vp = p; | |
195 | vp->trace_frame = SCM_BOOL_F; | |
196 | } | |
197 | ||
198 | static void | |
6d14383e | 199 | vm_dispatch_hook (struct scm_vm *vp, SCM hook, SCM hook_args) |
b1b942b7 | 200 | { |
b1b942b7 AW |
201 | if (!SCM_FALSEP (vp->trace_frame)) |
202 | return; | |
203 | ||
204 | scm_dynwind_begin (0); | |
6d14383e AW |
205 | // FIXME, stack holder should be the vm |
206 | vp->trace_frame = scm_c_make_vm_frame (SCM_BOOL_F, vp->fp, vp->sp, vp->ip, 0); | |
b1b942b7 AW |
207 | scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY); |
208 | ||
209 | scm_c_run_hook (hook, hook_args); | |
210 | ||
211 | scm_dynwind_end (); | |
212 | } | |
213 | ||
17e90c5e KN |
214 | \f |
215 | /* | |
216 | * VM Internal functions | |
217 | */ | |
218 | ||
90b0be20 AW |
219 | static SCM sym_vm_run; |
220 | static SCM sym_vm_error; | |
221 | static SCM sym_debug; | |
17e90c5e | 222 | |
53e28ed9 | 223 | static SCM make_u8vector (const scm_t_uint8 *bytes, size_t len) |
a98cef7e | 224 | { |
53e28ed9 AW |
225 | scm_t_uint8 *new_bytes = scm_gc_malloc (len, "make-u8vector"); |
226 | memcpy (new_bytes, bytes, len); | |
227 | return scm_take_u8vector (new_bytes, len); | |
a98cef7e KN |
228 | } |
229 | ||
5bd047ce LC |
230 | /* Dummy structure to guarantee 32-bit alignment. */ |
231 | struct t_32bit_aligned | |
232 | { | |
233 | scm_t_int32 dummy; | |
234 | scm_t_uint8 bytes[18]; | |
235 | }; | |
236 | ||
2fda0242 | 237 | static SCM |
d2d7acd5 | 238 | really_make_boot_program (long nargs) |
2fda0242 | 239 | { |
5bd047ce LC |
240 | SCM u8vec; |
241 | struct t_32bit_aligned bytes = | |
242 | { | |
243 | .dummy = 0, | |
244 | .bytes = { 0, 0, 0, 0, | |
245 | 0, 0, 0, 0, | |
246 | 0, 0, 0, 0, | |
247 | scm_op_mv_call, 0, 0, 1, | |
248 | scm_op_make_int8_1, scm_op_halt } | |
249 | }; | |
250 | ||
3b9e095b | 251 | SCM ret; |
5bd047ce LC |
252 | |
253 | /* Set length in current endianness, no meta. */ | |
254 | ((scm_t_uint32 *) bytes.bytes)[1] = 6; | |
255 | ||
53e28ed9 | 256 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 257 | abort (); |
5bd047ce LC |
258 | bytes.bytes[13] = (scm_byte_t) nargs; |
259 | ||
260 | u8vec = make_u8vector (bytes.bytes, sizeof (bytes.bytes)); | |
261 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), | |
3b9e095b AW |
262 | SCM_BOOL_F, SCM_EOL); |
263 | SCM_SET_SMOB_FLAGS (ret, SCM_F_PROGRAM_IS_BOOT); | |
5bd047ce | 264 | |
3b9e095b | 265 | return ret; |
2fda0242 | 266 | } |
d2d7acd5 AW |
267 | #define NUM_BOOT_PROGS 8 |
268 | static SCM | |
269 | vm_make_boot_program (long nargs) | |
270 | { | |
271 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
272 | ||
273 | if (SCM_UNLIKELY (!programs[0])) | |
274 | { | |
275 | int i; | |
276 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
277 | programs[i] = scm_permanent_object (really_make_boot_program (i)); | |
278 | } | |
279 | ||
280 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
281 | return programs[nargs]; | |
282 | else | |
283 | return really_make_boot_program (nargs); | |
284 | } | |
2fda0242 | 285 | |
a98cef7e KN |
286 | \f |
287 | /* | |
288 | * VM | |
289 | */ | |
290 | ||
b7393ea1 AW |
291 | static SCM |
292 | resolve_variable (SCM what, SCM program_module) | |
293 | { | |
294 | if (SCM_LIKELY (SCM_SYMBOLP (what))) | |
295 | { | |
296 | if (SCM_LIKELY (scm_module_system_booted_p | |
297 | && scm_is_true (program_module))) | |
298 | /* might longjmp */ | |
299 | return scm_module_lookup (program_module, what); | |
300 | else | |
301 | { | |
302 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
303 | if (scm_is_false (v)) | |
304 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
305 | else | |
306 | return v; | |
307 | } | |
308 | } | |
309 | else | |
310 | { | |
311 | SCM mod; | |
312 | /* compilation of @ or @@ | |
313 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
314 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
315 | */ | |
316 | mod = scm_resolve_module (SCM_CAR (what)); | |
317 | if (scm_is_true (SCM_CADDR (what))) | |
318 | mod = scm_module_public_interface (mod); | |
319 | if (SCM_FALSEP (mod)) | |
320 | scm_misc_error (NULL, "no such module: ~S", | |
321 | scm_list_1 (SCM_CAR (what))); | |
322 | /* might longjmp */ | |
323 | return scm_module_lookup (mod, SCM_CADR (what)); | |
324 | } | |
325 | } | |
326 | ||
327 | ||
c0a25ecc | 328 | #define VM_DEFAULT_STACK_SIZE (16 * 1024) |
17e90c5e | 329 | |
17e90c5e | 330 | #define VM_NAME vm_regular_engine |
6d14383e AW |
331 | #define FUNC_NAME "vm-regular-engine" |
332 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 333 | #include "vm-engine.c" |
17e90c5e | 334 | #undef VM_NAME |
6d14383e | 335 | #undef FUNC_NAME |
17e90c5e | 336 | #undef VM_ENGINE |
17e90c5e KN |
337 | |
338 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
339 | #define FUNC_NAME "vm-debug-engine" |
340 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 341 | #include "vm-engine.c" |
17e90c5e | 342 | #undef VM_NAME |
6d14383e | 343 | #undef FUNC_NAME |
17e90c5e KN |
344 | #undef VM_ENGINE |
345 | ||
6d14383e AW |
346 | static const scm_t_vm_engine vm_engines[] = |
347 | { vm_regular_engine, vm_debug_engine }; | |
348 | ||
f9e8c09d | 349 | scm_t_bits scm_tc16_vm; |
a98cef7e KN |
350 | |
351 | static SCM | |
17e90c5e KN |
352 | make_vm (void) |
353 | #define FUNC_NAME "make_vm" | |
a98cef7e | 354 | { |
17e90c5e | 355 | int i; |
747a1635 AW |
356 | |
357 | if (!scm_tc16_vm) | |
358 | return SCM_BOOL_F; /* not booted yet */ | |
359 | ||
d8eeb67c LC |
360 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
361 | ||
3d5ee0cd | 362 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
d8eeb67c LC |
363 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
364 | "stack-base"); | |
2bbe1533 AW |
365 | #ifdef VM_ENABLE_STACK_NULLING |
366 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
367 | #endif | |
3616e9e9 KN |
368 | vp->stack_limit = vp->stack_base + vp->stack_size - 3; |
369 | vp->ip = NULL; | |
370 | vp->sp = vp->stack_base - 1; | |
371 | vp->fp = NULL; | |
6d14383e | 372 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd KN |
373 | vp->time = 0; |
374 | vp->clock = 0; | |
375 | vp->options = SCM_EOL; | |
17e90c5e | 376 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 377 | vp->hooks[i] = SCM_BOOL_F; |
b1b942b7 | 378 | vp->trace_frame = SCM_BOOL_F; |
3d5ee0cd | 379 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); |
a98cef7e | 380 | } |
17e90c5e | 381 | #undef FUNC_NAME |
a98cef7e KN |
382 | |
383 | static SCM | |
17e90c5e | 384 | vm_mark (SCM obj) |
a98cef7e | 385 | { |
17e90c5e | 386 | int i; |
3d5ee0cd | 387 | struct scm_vm *vp = SCM_VM_DATA (obj); |
17e90c5e | 388 | |
11ea1aba AW |
389 | #ifdef VM_ENABLE_STACK_NULLING |
390 | if (vp->sp >= vp->stack_base) | |
391 | if (!vp->sp[0] || vp->sp[1]) | |
392 | abort (); | |
393 | #endif | |
394 | ||
395 | /* mark the stack, precisely */ | |
396 | vm_mark_stack (vp->stack_base, vp->sp + 1 - vp->stack_base, vp->fp, 0); | |
a98cef7e | 397 | |
af988bbf | 398 | /* mark other objects */ |
17e90c5e | 399 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 400 | scm_gc_mark (vp->hooks[i]); |
b1b942b7 AW |
401 | |
402 | scm_gc_mark (vp->trace_frame); | |
403 | ||
3d5ee0cd | 404 | return vp->options; |
a98cef7e KN |
405 | } |
406 | ||
da8b4747 | 407 | static size_t |
17e90c5e KN |
408 | vm_free (SCM obj) |
409 | { | |
3d5ee0cd | 410 | struct scm_vm *vp = SCM_VM_DATA (obj); |
d8eeb67c LC |
411 | |
412 | scm_gc_free (vp->stack_base, vp->stack_size * sizeof (SCM), | |
413 | "stack-base"); | |
414 | scm_gc_free (vp, sizeof (struct scm_vm), "vm"); | |
415 | ||
416 | return 0; | |
17e90c5e KN |
417 | } |
418 | ||
6d14383e | 419 | SCM |
4abef68f | 420 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 421 | { |
4abef68f | 422 | struct scm_vm *vp = SCM_VM_DATA (vm); |
6d14383e AW |
423 | return vm_engines[vp->engine](vp, program, argv, nargs); |
424 | } | |
425 | ||
17e90c5e KN |
426 | SCM |
427 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
428 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 429 | { |
6d14383e AW |
430 | SCM *argv; |
431 | int i, nargs; | |
432 | ||
433 | SCM_VALIDATE_VM (1, vm); | |
434 | SCM_VALIDATE_PROGRAM (2, program); | |
435 | ||
436 | nargs = scm_ilength (args); | |
437 | if (SCM_UNLIKELY (nargs < 0)) | |
438 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
439 | ||
440 | argv = alloca(nargs * sizeof(SCM)); | |
441 | for (i = 0; i < nargs; i++) | |
442 | { | |
443 | argv[i] = SCM_CAR (args); | |
444 | args = SCM_CDR (args); | |
445 | } | |
446 | ||
4abef68f | 447 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 448 | } |
17e90c5e | 449 | #undef FUNC_NAME |
a98cef7e KN |
450 | |
451 | /* Scheme interface */ | |
452 | ||
453 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
454 | (void), |
455 | "") | |
a98cef7e KN |
456 | #define FUNC_NAME s_scm_vm_version |
457 | { | |
d3518113 | 458 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
459 | } |
460 | #undef FUNC_NAME | |
461 | ||
499a4c07 | 462 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 463 | (void), |
499a4c07 KN |
464 | "") |
465 | #define FUNC_NAME s_scm_the_vm | |
466 | { | |
2bbe1533 | 467 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 468 | |
2bbe1533 AW |
469 | if (SCM_UNLIKELY (SCM_FALSEP ((t->vm)))) |
470 | t->vm = make_vm (); | |
f63ea2ce | 471 | |
2bbe1533 | 472 | return t->vm; |
499a4c07 KN |
473 | } |
474 | #undef FUNC_NAME | |
475 | ||
476 | ||
a98cef7e KN |
477 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
478 | (SCM obj), | |
17e90c5e | 479 | "") |
a98cef7e KN |
480 | #define FUNC_NAME s_scm_vm_p |
481 | { | |
482 | return SCM_BOOL (SCM_VM_P (obj)); | |
483 | } | |
484 | #undef FUNC_NAME | |
485 | ||
486 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
487 | (void), |
488 | "") | |
489 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 490 | { |
17e90c5e | 491 | return make_vm (); |
a98cef7e KN |
492 | } |
493 | #undef FUNC_NAME | |
494 | ||
17e90c5e | 495 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 496 | (SCM vm), |
17e90c5e KN |
497 | "") |
498 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
499 | { |
500 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 501 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
502 | } |
503 | #undef FUNC_NAME | |
504 | ||
505 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
506 | (SCM vm), | |
17e90c5e | 507 | "") |
a98cef7e KN |
508 | #define FUNC_NAME s_scm_vm_sp |
509 | { | |
510 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 511 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
512 | } |
513 | #undef FUNC_NAME | |
514 | ||
515 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
516 | (SCM vm), | |
17e90c5e | 517 | "") |
a98cef7e KN |
518 | #define FUNC_NAME s_scm_vm_fp |
519 | { | |
520 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 521 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
522 | } |
523 | #undef FUNC_NAME | |
524 | ||
17e90c5e KN |
525 | #define VM_DEFINE_HOOK(n) \ |
526 | { \ | |
3d5ee0cd | 527 | struct scm_vm *vp; \ |
17e90c5e | 528 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
529 | vp = SCM_VM_DATA (vm); \ |
530 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 531 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 532 | return vp->hooks[n]; \ |
17e90c5e KN |
533 | } |
534 | ||
535 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 536 | (SCM vm), |
17e90c5e KN |
537 | "") |
538 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 539 | { |
17e90c5e | 540 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
541 | } |
542 | #undef FUNC_NAME | |
543 | ||
17e90c5e KN |
544 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
545 | (SCM vm), | |
546 | "") | |
547 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 548 | { |
17e90c5e | 549 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
550 | } |
551 | #undef FUNC_NAME | |
552 | ||
17e90c5e | 553 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 554 | (SCM vm), |
17e90c5e KN |
555 | "") |
556 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 557 | { |
17e90c5e | 558 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
559 | } |
560 | #undef FUNC_NAME | |
561 | ||
7a0d0cee KN |
562 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
563 | (SCM vm), | |
564 | "") | |
565 | #define FUNC_NAME s_scm_vm_break_hook | |
566 | { | |
567 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
568 | } | |
569 | #undef FUNC_NAME | |
570 | ||
17e90c5e KN |
571 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
572 | (SCM vm), | |
573 | "") | |
574 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 575 | { |
17e90c5e | 576 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
577 | } |
578 | #undef FUNC_NAME | |
579 | ||
17e90c5e KN |
580 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
581 | (SCM vm), | |
582 | "") | |
583 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 584 | { |
17e90c5e | 585 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
586 | } |
587 | #undef FUNC_NAME | |
588 | ||
17e90c5e | 589 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 590 | (SCM vm), |
17e90c5e KN |
591 | "") |
592 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 593 | { |
17e90c5e | 594 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
595 | } |
596 | #undef FUNC_NAME | |
597 | ||
17e90c5e | 598 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 599 | (SCM vm), |
17e90c5e KN |
600 | "") |
601 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 602 | { |
17e90c5e | 603 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
604 | } |
605 | #undef FUNC_NAME | |
606 | ||
17e90c5e KN |
607 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
608 | (SCM vm, SCM key), | |
609 | "") | |
610 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
611 | { |
612 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 613 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
614 | } |
615 | #undef FUNC_NAME | |
616 | ||
17e90c5e KN |
617 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
618 | (SCM vm, SCM key, SCM val), | |
619 | "") | |
620 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
621 | { |
622 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
623 | SCM_VM_DATA (vm)->options |
624 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
625 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
626 | } |
627 | #undef FUNC_NAME | |
628 | ||
17e90c5e | 629 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 630 | (SCM vm), |
17e90c5e KN |
631 | "") |
632 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 633 | { |
17e90c5e KN |
634 | SCM stats; |
635 | ||
a98cef7e | 636 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 637 | |
2d80426a LC |
638 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
639 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 640 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 641 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 642 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
643 | |
644 | return stats; | |
a98cef7e KN |
645 | } |
646 | #undef FUNC_NAME | |
647 | ||
b1b942b7 | 648 | SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0, |
17e90c5e KN |
649 | (SCM vm), |
650 | "") | |
b1b942b7 | 651 | #define FUNC_NAME s_scm_vm_trace_frame |
a98cef7e | 652 | { |
a98cef7e | 653 | SCM_VALIDATE_VM (1, vm); |
b1b942b7 | 654 | return SCM_VM_DATA (vm)->trace_frame; |
a98cef7e KN |
655 | } |
656 | #undef FUNC_NAME | |
657 | ||
658 | \f | |
659 | /* | |
17e90c5e | 660 | * Initialize |
a98cef7e KN |
661 | */ |
662 | ||
07e56b27 AW |
663 | SCM scm_load_compiled_with_vm (SCM file) |
664 | { | |
53e28ed9 AW |
665 | SCM program = scm_make_program (scm_load_objcode (file), |
666 | SCM_BOOL_F, SCM_EOL); | |
07e56b27 | 667 | |
4abef68f | 668 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
669 | } |
670 | ||
17e90c5e | 671 | void |
07e56b27 | 672 | scm_bootstrap_vm (void) |
17e90c5e | 673 | { |
07e56b27 AW |
674 | static int strappage = 0; |
675 | ||
676 | if (strappage) | |
677 | return; | |
678 | ||
679 | scm_bootstrap_frames (); | |
680 | scm_bootstrap_instructions (); | |
681 | scm_bootstrap_objcodes (); | |
682 | scm_bootstrap_programs (); | |
a98cef7e | 683 | |
17e90c5e KN |
684 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
685 | scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark); | |
686 | scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free); | |
a98cef7e | 687 | |
17e90c5e KN |
688 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
689 | scm_set_smob_mark (scm_tc16_vm, vm_mark); | |
690 | scm_set_smob_free (scm_tc16_vm, vm_free); | |
691 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); | |
a98cef7e | 692 | |
83495480 AW |
693 | scm_c_define ("load-compiled", |
694 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
695 | scm_load_compiled_with_vm)); | |
07e56b27 | 696 | |
90b0be20 AW |
697 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
698 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
699 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
700 | ||
60ae5ca2 AW |
701 | scm_c_register_extension ("libguile", "scm_init_vm", |
702 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
703 | ||
07e56b27 AW |
704 | strappage = 1; |
705 | } | |
706 | ||
707 | void | |
708 | scm_init_vm (void) | |
709 | { | |
710 | scm_bootstrap_vm (); | |
711 | ||
17e90c5e | 712 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 713 | #include "libguile/vm.x" |
17e90c5e | 714 | #endif |
a98cef7e | 715 | } |
17e90c5e KN |
716 | |
717 | /* | |
718 | Local Variables: | |
719 | c-file-style: "gnu" | |
720 | End: | |
721 | */ |