Commit | Line | Data |
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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
a98cef7e | 2 | * |
560b9c25 AW |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
a98cef7e | 7 | * |
560b9c25 AW |
8 | * This library 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 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 | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
a98cef7e | 17 | |
13c47753 AW |
18 | #if HAVE_CONFIG_H |
19 | # include <config.h> | |
20 | #endif | |
21 | ||
da8b4747 | 22 | #include <stdlib.h> |
6d14383e | 23 | #include <alloca.h> |
17e90c5e | 24 | #include <string.h> |
560b9c25 | 25 | #include "_scm.h" |
83495480 | 26 | #include "vm-bootstrap.h" |
ac99cb0c | 27 | #include "frames.h" |
17e90c5e | 28 | #include "instructions.h" |
8f5cfc81 | 29 | #include "objcodes.h" |
ac99cb0c | 30 | #include "programs.h" |
fb10a008 | 31 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
32 | #include "vm.h" |
33 | ||
a98cef7e KN |
34 | /* I sometimes use this for debugging. */ |
35 | #define vm_puts(OBJ) \ | |
36 | { \ | |
22bcbe8c AW |
37 | scm_display (OBJ, scm_current_error_port ()); \ |
38 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
39 | } |
40 | ||
11ea1aba AW |
41 | /* The VM has a number of internal assertions that shouldn't normally be |
42 | necessary, but might be if you think you found a bug in the VM. */ | |
43 | #define VM_ENABLE_ASSERTIONS | |
44 | ||
45 | /* We can add a mode that ensures that all stack items above the stack pointer | |
46 | are NULL. This is useful for checking the internal consistency of the VM's | |
47 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc | 48 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
747a1635 | 49 | /* NB! If you enable this, search for NULLING in throw.c */ |
616167fc | 50 | /* #define VM_ENABLE_STACK_NULLING */ |
11ea1aba | 51 | |
53e28ed9 AW |
52 | /* #define VM_ENABLE_PARANOID_ASSERTIONS */ |
53 | ||
11ea1aba AW |
54 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) |
55 | #define VM_ENABLE_ASSERTIONS | |
56 | #endif | |
57 | ||
a98cef7e | 58 | \f |
a98cef7e KN |
59 | /* |
60 | * VM Continuation | |
61 | */ | |
62 | ||
f9e8c09d | 63 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e | 64 | |
11ea1aba AW |
65 | static void |
66 | vm_mark_stack (SCM *base, scm_t_ptrdiff size, SCM *fp, scm_t_ptrdiff reloc) | |
67 | { | |
68 | SCM *sp, *upper, *lower; | |
69 | sp = base + size - 1; | |
70 | ||
71 | while (sp > base && fp) | |
72 | { | |
73 | upper = SCM_FRAME_UPPER_ADDRESS (fp); | |
74 | lower = SCM_FRAME_LOWER_ADDRESS (fp); | |
75 | ||
76 | for (; sp >= upper; sp--) | |
77 | if (SCM_NIMP (*sp)) | |
78 | { | |
79 | if (scm_in_heap_p (*sp)) | |
80 | scm_gc_mark (*sp); | |
81 | else | |
82 | fprintf (stderr, "BADNESS: crap on the stack: %p\n", *sp); | |
83 | } | |
84 | ||
85 | ||
86 | /* skip ra, mvra */ | |
87 | sp -= 2; | |
88 | ||
89 | /* update fp from the dynamic link */ | |
90 | fp = (SCM*)*sp-- + reloc; | |
91 | ||
b1b942b7 | 92 | /* mark from the el down to the lower address */ |
11ea1aba AW |
93 | for (; sp >= lower; sp--) |
94 | if (*sp && SCM_NIMP (*sp)) | |
95 | scm_gc_mark (*sp); | |
96 | } | |
97 | } | |
98 | ||
bfffd258 AW |
99 | static SCM |
100 | vm_cont_mark (SCM obj) | |
101 | { | |
11ea1aba | 102 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); |
bfffd258 | 103 | |
7aa6f86b AW |
104 | if (p->stack_size) |
105 | vm_mark_stack (p->stack_base, p->stack_size, p->fp + p->reloc, p->reloc); | |
bfffd258 AW |
106 | |
107 | return SCM_BOOL_F; | |
108 | } | |
109 | ||
da8b4747 | 110 | static size_t |
bfffd258 AW |
111 | vm_cont_free (SCM obj) |
112 | { | |
113 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj); | |
114 | ||
115 | scm_gc_free (p->stack_base, p->stack_size * sizeof (SCM), "stack-base"); | |
79824460 | 116 | scm_gc_free (p, sizeof (*p), "vm-cont"); |
bfffd258 AW |
117 | |
118 | return 0; | |
119 | } | |
a98cef7e KN |
120 | |
121 | static SCM | |
3d5ee0cd | 122 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 123 | { |
bfffd258 AW |
124 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
125 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
126 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
127 | "capture_vm_cont"); | |
11ea1aba | 128 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
129 | if (vp->sp >= vp->stack_base) |
130 | if (!vp->sp[0] || vp->sp[1]) | |
131 | abort (); | |
11ea1aba AW |
132 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
133 | #endif | |
3d5ee0cd | 134 | p->ip = vp->ip; |
7aa6f86b AW |
135 | p->sp = vp->sp; |
136 | p->fp = vp->fp; | |
bfffd258 | 137 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 138 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 139 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
140 | } |
141 | ||
142 | static void | |
3d5ee0cd | 143 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 144 | { |
bfffd258 | 145 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 146 | if (vp->stack_size < p->stack_size) |
a98cef7e | 147 | { |
17e90c5e | 148 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
149 | abort (); |
150 | } | |
11ea1aba AW |
151 | #ifdef VM_ENABLE_STACK_NULLING |
152 | { | |
7aa6f86b | 153 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 154 | if (nzero > 0) |
66db076a AW |
155 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
156 | /* actually nzero should always be negative, because vm_reset_stack will | |
157 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
158 | } |
159 | #endif | |
3d5ee0cd | 160 | vp->ip = p->ip; |
7aa6f86b AW |
161 | vp->sp = p->sp; |
162 | vp->fp = p->fp; | |
bfffd258 AW |
163 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
164 | } | |
165 | ||
166 | /* In theory, a number of vm instances can be active in the call trace, and we | |
167 | only want to reify the continuations of those in the current continuation | |
168 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
169 | and previous values of the *the-vm* fluid within the current continuation | |
170 | root. But we don't have access to continuation roots in the dynwind stack. | |
171 | So, just punt for now -- take the current value of *the-vm*. | |
172 | ||
173 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
174 | continuation root is inside VM code, and call/cc was invoked within that same | |
175 | call to vm_run; but that's currently not implemented. | |
176 | */ | |
177 | SCM | |
178 | scm_vm_capture_continuations (void) | |
179 | { | |
180 | SCM vm = scm_the_vm (); | |
181 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
182 | } | |
183 | ||
184 | void | |
185 | scm_vm_reinstate_continuations (SCM conts) | |
186 | { | |
187 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
188 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
189 | } |
190 | ||
b1b942b7 AW |
191 | static void enfalsen_frame (void *p) |
192 | { | |
193 | struct scm_vm *vp = p; | |
194 | vp->trace_frame = SCM_BOOL_F; | |
195 | } | |
196 | ||
197 | static void | |
6d14383e | 198 | vm_dispatch_hook (struct scm_vm *vp, SCM hook, SCM hook_args) |
b1b942b7 | 199 | { |
b1b942b7 AW |
200 | if (!SCM_FALSEP (vp->trace_frame)) |
201 | return; | |
202 | ||
203 | scm_dynwind_begin (0); | |
6d14383e AW |
204 | // FIXME, stack holder should be the vm |
205 | vp->trace_frame = scm_c_make_vm_frame (SCM_BOOL_F, vp->fp, vp->sp, vp->ip, 0); | |
b1b942b7 AW |
206 | scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY); |
207 | ||
208 | scm_c_run_hook (hook, hook_args); | |
209 | ||
210 | scm_dynwind_end (); | |
211 | } | |
212 | ||
17e90c5e KN |
213 | \f |
214 | /* | |
215 | * VM Internal functions | |
216 | */ | |
217 | ||
90b0be20 AW |
218 | static SCM sym_vm_run; |
219 | static SCM sym_vm_error; | |
220 | static SCM sym_debug; | |
17e90c5e | 221 | |
53e28ed9 | 222 | static SCM make_u8vector (const scm_t_uint8 *bytes, size_t len) |
a98cef7e | 223 | { |
53e28ed9 AW |
224 | scm_t_uint8 *new_bytes = scm_gc_malloc (len, "make-u8vector"); |
225 | memcpy (new_bytes, bytes, len); | |
226 | return scm_take_u8vector (new_bytes, len); | |
a98cef7e KN |
227 | } |
228 | ||
2fda0242 | 229 | static SCM |
d2d7acd5 | 230 | really_make_boot_program (long nargs) |
2fda0242 | 231 | { |
53e28ed9 | 232 | scm_byte_t bytes[] = {0, 0, 0, 0, |
9aeaabdc | 233 | 0, 0, 0, 0, |
53e28ed9 AW |
234 | 0, 0, 0, 0, |
235 | scm_op_mv_call, 0, 0, 1, scm_op_make_int8_1, scm_op_halt}; | |
3b9e095b | 236 | SCM ret; |
9aeaabdc | 237 | ((scm_t_uint32*)bytes)[1] = 6; /* set len in current endianness, no meta */ |
53e28ed9 | 238 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 239 | abort (); |
9aeaabdc | 240 | bytes[13] = (scm_byte_t)nargs; |
3b9e095b AW |
241 | ret = scm_make_program (scm_bytecode_to_objcode (make_u8vector (bytes, sizeof(bytes))), |
242 | SCM_BOOL_F, SCM_EOL); | |
243 | SCM_SET_SMOB_FLAGS (ret, SCM_F_PROGRAM_IS_BOOT); | |
244 | return ret; | |
2fda0242 | 245 | } |
d2d7acd5 AW |
246 | #define NUM_BOOT_PROGS 8 |
247 | static SCM | |
248 | vm_make_boot_program (long nargs) | |
249 | { | |
250 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
251 | ||
252 | if (SCM_UNLIKELY (!programs[0])) | |
253 | { | |
254 | int i; | |
255 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
256 | programs[i] = scm_permanent_object (really_make_boot_program (i)); | |
257 | } | |
258 | ||
259 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
260 | return programs[nargs]; | |
261 | else | |
262 | return really_make_boot_program (nargs); | |
263 | } | |
2fda0242 | 264 | |
a98cef7e KN |
265 | \f |
266 | /* | |
267 | * VM | |
268 | */ | |
269 | ||
b7393ea1 AW |
270 | static SCM |
271 | resolve_variable (SCM what, SCM program_module) | |
272 | { | |
273 | if (SCM_LIKELY (SCM_SYMBOLP (what))) | |
274 | { | |
275 | if (SCM_LIKELY (scm_module_system_booted_p | |
276 | && scm_is_true (program_module))) | |
277 | /* might longjmp */ | |
278 | return scm_module_lookup (program_module, what); | |
279 | else | |
280 | { | |
281 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
282 | if (scm_is_false (v)) | |
283 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
284 | else | |
285 | return v; | |
286 | } | |
287 | } | |
288 | else | |
289 | { | |
290 | SCM mod; | |
291 | /* compilation of @ or @@ | |
292 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
293 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
294 | */ | |
295 | mod = scm_resolve_module (SCM_CAR (what)); | |
296 | if (scm_is_true (SCM_CADDR (what))) | |
297 | mod = scm_module_public_interface (mod); | |
298 | if (SCM_FALSEP (mod)) | |
299 | scm_misc_error (NULL, "no such module: ~S", | |
300 | scm_list_1 (SCM_CAR (what))); | |
301 | /* might longjmp */ | |
302 | return scm_module_lookup (mod, SCM_CADR (what)); | |
303 | } | |
304 | } | |
305 | ||
306 | ||
c0a25ecc | 307 | #define VM_DEFAULT_STACK_SIZE (16 * 1024) |
17e90c5e | 308 | |
17e90c5e | 309 | #define VM_NAME vm_regular_engine |
6d14383e AW |
310 | #define FUNC_NAME "vm-regular-engine" |
311 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 312 | #include "vm-engine.c" |
17e90c5e | 313 | #undef VM_NAME |
6d14383e | 314 | #undef FUNC_NAME |
17e90c5e | 315 | #undef VM_ENGINE |
17e90c5e KN |
316 | |
317 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
318 | #define FUNC_NAME "vm-debug-engine" |
319 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 320 | #include "vm-engine.c" |
17e90c5e | 321 | #undef VM_NAME |
6d14383e | 322 | #undef FUNC_NAME |
17e90c5e KN |
323 | #undef VM_ENGINE |
324 | ||
6d14383e AW |
325 | static const scm_t_vm_engine vm_engines[] = |
326 | { vm_regular_engine, vm_debug_engine }; | |
327 | ||
f9e8c09d | 328 | scm_t_bits scm_tc16_vm; |
a98cef7e KN |
329 | |
330 | static SCM | |
17e90c5e KN |
331 | make_vm (void) |
332 | #define FUNC_NAME "make_vm" | |
a98cef7e | 333 | { |
17e90c5e | 334 | int i; |
747a1635 AW |
335 | |
336 | if (!scm_tc16_vm) | |
337 | return SCM_BOOL_F; /* not booted yet */ | |
338 | ||
d8eeb67c LC |
339 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
340 | ||
3d5ee0cd | 341 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
d8eeb67c LC |
342 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
343 | "stack-base"); | |
2bbe1533 AW |
344 | #ifdef VM_ENABLE_STACK_NULLING |
345 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
346 | #endif | |
3616e9e9 KN |
347 | vp->stack_limit = vp->stack_base + vp->stack_size - 3; |
348 | vp->ip = NULL; | |
349 | vp->sp = vp->stack_base - 1; | |
350 | vp->fp = NULL; | |
6d14383e | 351 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd KN |
352 | vp->time = 0; |
353 | vp->clock = 0; | |
354 | vp->options = SCM_EOL; | |
17e90c5e | 355 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 356 | vp->hooks[i] = SCM_BOOL_F; |
b1b942b7 | 357 | vp->trace_frame = SCM_BOOL_F; |
3d5ee0cd | 358 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); |
a98cef7e | 359 | } |
17e90c5e | 360 | #undef FUNC_NAME |
a98cef7e KN |
361 | |
362 | static SCM | |
17e90c5e | 363 | vm_mark (SCM obj) |
a98cef7e | 364 | { |
17e90c5e | 365 | int i; |
3d5ee0cd | 366 | struct scm_vm *vp = SCM_VM_DATA (obj); |
17e90c5e | 367 | |
11ea1aba AW |
368 | #ifdef VM_ENABLE_STACK_NULLING |
369 | if (vp->sp >= vp->stack_base) | |
370 | if (!vp->sp[0] || vp->sp[1]) | |
371 | abort (); | |
372 | #endif | |
373 | ||
374 | /* mark the stack, precisely */ | |
375 | vm_mark_stack (vp->stack_base, vp->sp + 1 - vp->stack_base, vp->fp, 0); | |
a98cef7e | 376 | |
af988bbf | 377 | /* mark other objects */ |
17e90c5e | 378 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 379 | scm_gc_mark (vp->hooks[i]); |
b1b942b7 AW |
380 | |
381 | scm_gc_mark (vp->trace_frame); | |
382 | ||
3d5ee0cd | 383 | return vp->options; |
a98cef7e KN |
384 | } |
385 | ||
da8b4747 | 386 | static size_t |
17e90c5e KN |
387 | vm_free (SCM obj) |
388 | { | |
3d5ee0cd | 389 | struct scm_vm *vp = SCM_VM_DATA (obj); |
d8eeb67c LC |
390 | |
391 | scm_gc_free (vp->stack_base, vp->stack_size * sizeof (SCM), | |
392 | "stack-base"); | |
393 | scm_gc_free (vp, sizeof (struct scm_vm), "vm"); | |
394 | ||
395 | return 0; | |
17e90c5e KN |
396 | } |
397 | ||
6d14383e | 398 | SCM |
4abef68f | 399 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 400 | { |
4abef68f | 401 | struct scm_vm *vp = SCM_VM_DATA (vm); |
6d14383e AW |
402 | return vm_engines[vp->engine](vp, program, argv, nargs); |
403 | } | |
404 | ||
17e90c5e KN |
405 | SCM |
406 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
407 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 408 | { |
6d14383e AW |
409 | SCM *argv; |
410 | int i, nargs; | |
411 | ||
412 | SCM_VALIDATE_VM (1, vm); | |
413 | SCM_VALIDATE_PROGRAM (2, program); | |
414 | ||
415 | nargs = scm_ilength (args); | |
416 | if (SCM_UNLIKELY (nargs < 0)) | |
417 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
418 | ||
419 | argv = alloca(nargs * sizeof(SCM)); | |
420 | for (i = 0; i < nargs; i++) | |
421 | { | |
422 | argv[i] = SCM_CAR (args); | |
423 | args = SCM_CDR (args); | |
424 | } | |
425 | ||
4abef68f | 426 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 427 | } |
17e90c5e | 428 | #undef FUNC_NAME |
a98cef7e KN |
429 | |
430 | /* Scheme interface */ | |
431 | ||
432 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
433 | (void), |
434 | "") | |
a98cef7e KN |
435 | #define FUNC_NAME s_scm_vm_version |
436 | { | |
d3518113 | 437 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
438 | } |
439 | #undef FUNC_NAME | |
440 | ||
499a4c07 | 441 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 442 | (void), |
499a4c07 KN |
443 | "") |
444 | #define FUNC_NAME s_scm_the_vm | |
445 | { | |
2bbe1533 | 446 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 447 | |
2bbe1533 AW |
448 | if (SCM_UNLIKELY (SCM_FALSEP ((t->vm)))) |
449 | t->vm = make_vm (); | |
f63ea2ce | 450 | |
2bbe1533 | 451 | return t->vm; |
499a4c07 KN |
452 | } |
453 | #undef FUNC_NAME | |
454 | ||
455 | ||
a98cef7e KN |
456 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
457 | (SCM obj), | |
17e90c5e | 458 | "") |
a98cef7e KN |
459 | #define FUNC_NAME s_scm_vm_p |
460 | { | |
461 | return SCM_BOOL (SCM_VM_P (obj)); | |
462 | } | |
463 | #undef FUNC_NAME | |
464 | ||
465 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
466 | (void), |
467 | "") | |
468 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 469 | { |
17e90c5e | 470 | return make_vm (); |
a98cef7e KN |
471 | } |
472 | #undef FUNC_NAME | |
473 | ||
17e90c5e | 474 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 475 | (SCM vm), |
17e90c5e KN |
476 | "") |
477 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
478 | { |
479 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 480 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
481 | } |
482 | #undef FUNC_NAME | |
483 | ||
484 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
485 | (SCM vm), | |
17e90c5e | 486 | "") |
a98cef7e KN |
487 | #define FUNC_NAME s_scm_vm_sp |
488 | { | |
489 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 490 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
491 | } |
492 | #undef FUNC_NAME | |
493 | ||
494 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
495 | (SCM vm), | |
17e90c5e | 496 | "") |
a98cef7e KN |
497 | #define FUNC_NAME s_scm_vm_fp |
498 | { | |
499 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 500 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
501 | } |
502 | #undef FUNC_NAME | |
503 | ||
17e90c5e KN |
504 | #define VM_DEFINE_HOOK(n) \ |
505 | { \ | |
3d5ee0cd | 506 | struct scm_vm *vp; \ |
17e90c5e | 507 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
508 | vp = SCM_VM_DATA (vm); \ |
509 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 510 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 511 | return vp->hooks[n]; \ |
17e90c5e KN |
512 | } |
513 | ||
514 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 515 | (SCM vm), |
17e90c5e KN |
516 | "") |
517 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 518 | { |
17e90c5e | 519 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
520 | } |
521 | #undef FUNC_NAME | |
522 | ||
17e90c5e KN |
523 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
524 | (SCM vm), | |
525 | "") | |
526 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 527 | { |
17e90c5e | 528 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
529 | } |
530 | #undef FUNC_NAME | |
531 | ||
17e90c5e | 532 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 533 | (SCM vm), |
17e90c5e KN |
534 | "") |
535 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 536 | { |
17e90c5e | 537 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
538 | } |
539 | #undef FUNC_NAME | |
540 | ||
7a0d0cee KN |
541 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
542 | (SCM vm), | |
543 | "") | |
544 | #define FUNC_NAME s_scm_vm_break_hook | |
545 | { | |
546 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
547 | } | |
548 | #undef FUNC_NAME | |
549 | ||
17e90c5e KN |
550 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
551 | (SCM vm), | |
552 | "") | |
553 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 554 | { |
17e90c5e | 555 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
556 | } |
557 | #undef FUNC_NAME | |
558 | ||
17e90c5e KN |
559 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
560 | (SCM vm), | |
561 | "") | |
562 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 563 | { |
17e90c5e | 564 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
565 | } |
566 | #undef FUNC_NAME | |
567 | ||
17e90c5e | 568 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 569 | (SCM vm), |
17e90c5e KN |
570 | "") |
571 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 572 | { |
17e90c5e | 573 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
574 | } |
575 | #undef FUNC_NAME | |
576 | ||
17e90c5e | 577 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 578 | (SCM vm), |
17e90c5e KN |
579 | "") |
580 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 581 | { |
17e90c5e | 582 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
583 | } |
584 | #undef FUNC_NAME | |
585 | ||
17e90c5e KN |
586 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
587 | (SCM vm, SCM key), | |
588 | "") | |
589 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
590 | { |
591 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 592 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
593 | } |
594 | #undef FUNC_NAME | |
595 | ||
17e90c5e KN |
596 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
597 | (SCM vm, SCM key, SCM val), | |
598 | "") | |
599 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
600 | { |
601 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
602 | SCM_VM_DATA (vm)->options |
603 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
604 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
605 | } |
606 | #undef FUNC_NAME | |
607 | ||
17e90c5e | 608 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 609 | (SCM vm), |
17e90c5e KN |
610 | "") |
611 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 612 | { |
17e90c5e KN |
613 | SCM stats; |
614 | ||
a98cef7e | 615 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 616 | |
2d80426a LC |
617 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
618 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 619 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 620 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 621 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
622 | |
623 | return stats; | |
a98cef7e KN |
624 | } |
625 | #undef FUNC_NAME | |
626 | ||
b1b942b7 | 627 | SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0, |
17e90c5e KN |
628 | (SCM vm), |
629 | "") | |
b1b942b7 | 630 | #define FUNC_NAME s_scm_vm_trace_frame |
a98cef7e | 631 | { |
a98cef7e | 632 | SCM_VALIDATE_VM (1, vm); |
b1b942b7 | 633 | return SCM_VM_DATA (vm)->trace_frame; |
a98cef7e KN |
634 | } |
635 | #undef FUNC_NAME | |
636 | ||
637 | \f | |
638 | /* | |
17e90c5e | 639 | * Initialize |
a98cef7e KN |
640 | */ |
641 | ||
07e56b27 AW |
642 | SCM scm_load_compiled_with_vm (SCM file) |
643 | { | |
53e28ed9 AW |
644 | SCM program = scm_make_program (scm_load_objcode (file), |
645 | SCM_BOOL_F, SCM_EOL); | |
07e56b27 | 646 | |
4abef68f | 647 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
648 | } |
649 | ||
17e90c5e | 650 | void |
07e56b27 | 651 | scm_bootstrap_vm (void) |
17e90c5e | 652 | { |
07e56b27 AW |
653 | static int strappage = 0; |
654 | ||
655 | if (strappage) | |
656 | return; | |
657 | ||
658 | scm_bootstrap_frames (); | |
659 | scm_bootstrap_instructions (); | |
660 | scm_bootstrap_objcodes (); | |
661 | scm_bootstrap_programs (); | |
a98cef7e | 662 | |
17e90c5e KN |
663 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
664 | scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark); | |
665 | scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free); | |
a98cef7e | 666 | |
17e90c5e KN |
667 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
668 | scm_set_smob_mark (scm_tc16_vm, vm_mark); | |
669 | scm_set_smob_free (scm_tc16_vm, vm_free); | |
670 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); | |
a98cef7e | 671 | |
83495480 AW |
672 | scm_c_define ("load-compiled", |
673 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
674 | scm_load_compiled_with_vm)); | |
07e56b27 | 675 | |
90b0be20 AW |
676 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
677 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
678 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
679 | ||
60ae5ca2 AW |
680 | scm_c_register_extension ("libguile", "scm_init_vm", |
681 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
682 | ||
07e56b27 AW |
683 | strappage = 1; |
684 | } | |
685 | ||
686 | void | |
687 | scm_init_vm (void) | |
688 | { | |
689 | scm_bootstrap_vm (); | |
690 | ||
17e90c5e | 691 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 692 | #include "libguile/vm.x" |
17e90c5e | 693 | #endif |
a98cef7e | 694 | } |
17e90c5e KN |
695 | |
696 | /* | |
697 | Local Variables: | |
698 | c-file-style: "gnu" | |
699 | End: | |
700 | */ |