Commit | Line | Data |
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a6029b97 | 1 | /* Copyright (C) 2001, 2009, 2010 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 | 26 | |
1c44468d | 27 | #include "libguile/bdw-gc.h" |
e3eb628d LC |
28 | #include <gc/gc_mark.h> |
29 | ||
560b9c25 | 30 | #include "_scm.h" |
ac99cb0c | 31 | #include "frames.h" |
17e90c5e | 32 | #include "instructions.h" |
8f5cfc81 | 33 | #include "objcodes.h" |
ac99cb0c | 34 | #include "programs.h" |
fb10a008 | 35 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
36 | #include "vm.h" |
37 | ||
a98cef7e KN |
38 | /* I sometimes use this for debugging. */ |
39 | #define vm_puts(OBJ) \ | |
40 | { \ | |
22bcbe8c AW |
41 | scm_display (OBJ, scm_current_error_port ()); \ |
42 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
43 | } |
44 | ||
11ea1aba AW |
45 | /* The VM has a number of internal assertions that shouldn't normally be |
46 | necessary, but might be if you think you found a bug in the VM. */ | |
47 | #define VM_ENABLE_ASSERTIONS | |
48 | ||
49 | /* We can add a mode that ensures that all stack items above the stack pointer | |
50 | are NULL. This is useful for checking the internal consistency of the VM's | |
51 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc | 52 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
747a1635 | 53 | /* NB! If you enable this, search for NULLING in throw.c */ |
616167fc | 54 | /* #define VM_ENABLE_STACK_NULLING */ |
11ea1aba | 55 | |
53e28ed9 AW |
56 | /* #define VM_ENABLE_PARANOID_ASSERTIONS */ |
57 | ||
11ea1aba AW |
58 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) |
59 | #define VM_ENABLE_ASSERTIONS | |
60 | #endif | |
61 | ||
e3eb628d LC |
62 | /* When defined, arrange so that the GC doesn't scan the VM stack beyond its |
63 | current SP. This should help avoid excess data retention. See | |
64 | http://thread.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/3001 | |
65 | for a discussion. */ | |
66 | #define VM_ENABLE_PRECISE_STACK_GC_SCAN | |
67 | ||
68 | ||
a98cef7e | 69 | \f |
a98cef7e KN |
70 | /* |
71 | * VM Continuation | |
72 | */ | |
73 | ||
f9e8c09d | 74 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e | 75 | |
a98cef7e | 76 | static SCM |
3d5ee0cd | 77 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 78 | { |
bfffd258 AW |
79 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
80 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
81 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
82 | "capture_vm_cont"); | |
11ea1aba | 83 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
84 | if (vp->sp >= vp->stack_base) |
85 | if (!vp->sp[0] || vp->sp[1]) | |
86 | abort (); | |
11ea1aba AW |
87 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
88 | #endif | |
3d5ee0cd | 89 | p->ip = vp->ip; |
7aa6f86b AW |
90 | p->sp = vp->sp; |
91 | p->fp = vp->fp; | |
bfffd258 | 92 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 93 | p->reloc = p->stack_base - vp->stack_base; |
17e90c5e | 94 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
95 | } |
96 | ||
97 | static void | |
3d5ee0cd | 98 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 99 | { |
bfffd258 | 100 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 101 | if (vp->stack_size < p->stack_size) |
a98cef7e | 102 | { |
17e90c5e | 103 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
104 | abort (); |
105 | } | |
11ea1aba AW |
106 | #ifdef VM_ENABLE_STACK_NULLING |
107 | { | |
7aa6f86b | 108 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 109 | if (nzero > 0) |
66db076a AW |
110 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
111 | /* actually nzero should always be negative, because vm_reset_stack will | |
112 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
113 | } |
114 | #endif | |
3d5ee0cd | 115 | vp->ip = p->ip; |
7aa6f86b AW |
116 | vp->sp = p->sp; |
117 | vp->fp = p->fp; | |
bfffd258 AW |
118 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
119 | } | |
120 | ||
121 | /* In theory, a number of vm instances can be active in the call trace, and we | |
122 | only want to reify the continuations of those in the current continuation | |
123 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
124 | and previous values of the *the-vm* fluid within the current continuation | |
125 | root. But we don't have access to continuation roots in the dynwind stack. | |
126 | So, just punt for now -- take the current value of *the-vm*. | |
127 | ||
128 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
129 | continuation root is inside VM code, and call/cc was invoked within that same | |
130 | call to vm_run; but that's currently not implemented. | |
131 | */ | |
132 | SCM | |
133 | scm_vm_capture_continuations (void) | |
134 | { | |
135 | SCM vm = scm_the_vm (); | |
136 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
137 | } | |
138 | ||
139 | void | |
140 | scm_vm_reinstate_continuations (SCM conts) | |
141 | { | |
142 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
143 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
144 | } |
145 | ||
b1b942b7 | 146 | static void |
7656f194 | 147 | vm_dispatch_hook (SCM vm, int hook_num) |
b1b942b7 | 148 | { |
7656f194 AW |
149 | struct scm_vm *vp; |
150 | SCM hook; | |
151 | SCM frame; | |
b1b942b7 | 152 | |
7656f194 AW |
153 | vp = SCM_VM_DATA (vm); |
154 | hook = vp->hooks[hook_num]; | |
b1b942b7 | 155 | |
7656f194 AW |
156 | if (SCM_LIKELY (scm_is_false (hook)) |
157 | || scm_is_null (SCM_HOOK_PROCEDURES (hook))) | |
158 | return; | |
159 | ||
160 | vp->trace_level--; | |
161 | frame = scm_c_make_frame (vm, vp->fp, vp->sp, vp->ip, 0); | |
162 | scm_c_run_hookn (hook, &frame, 1); | |
163 | vp->trace_level++; | |
b1b942b7 AW |
164 | } |
165 | ||
17e90c5e KN |
166 | \f |
167 | /* | |
168 | * VM Internal functions | |
169 | */ | |
170 | ||
f6a8e791 AW |
171 | SCM_SYMBOL (sym_vm_run, "vm-run"); |
172 | SCM_SYMBOL (sym_vm_error, "vm-error"); | |
173 | SCM_SYMBOL (sym_keyword_argument_error, "keyword-argument-error"); | |
174 | SCM_SYMBOL (sym_debug, "debug"); | |
17e90c5e | 175 | |
2fda0242 | 176 | static SCM |
d2d7acd5 | 177 | really_make_boot_program (long nargs) |
2fda0242 | 178 | { |
5bd047ce | 179 | SCM u8vec; |
97fcf583 AW |
180 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 0, 1, |
181 | scm_op_make_int8_1, scm_op_halt }; | |
28b119ee | 182 | struct scm_objcode *bp; |
3b9e095b | 183 | SCM ret; |
5bd047ce | 184 | |
53e28ed9 | 185 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 186 | abort (); |
28b119ee AW |
187 | text[1] = (scm_t_uint8)nargs; |
188 | ||
d7e7a02a | 189 | bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text)); |
3dbbe28d | 190 | memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text)); |
28b119ee AW |
191 | bp->len = sizeof(text); |
192 | bp->metalen = 0; | |
28b119ee AW |
193 | |
194 | u8vec = scm_take_u8vector ((scm_t_uint8*)bp, | |
195 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 196 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 197 | SCM_BOOL_F, SCM_BOOL_F); |
ba20f78a | 198 | SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 199 | |
3b9e095b | 200 | return ret; |
2fda0242 | 201 | } |
d2d7acd5 AW |
202 | #define NUM_BOOT_PROGS 8 |
203 | static SCM | |
204 | vm_make_boot_program (long nargs) | |
205 | { | |
206 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
207 | ||
208 | if (SCM_UNLIKELY (!programs[0])) | |
209 | { | |
210 | int i; | |
211 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
f39448c5 | 212 | programs[i] = really_make_boot_program (i); |
d2d7acd5 AW |
213 | } |
214 | ||
215 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
216 | return programs[nargs]; | |
217 | else | |
218 | return really_make_boot_program (nargs); | |
219 | } | |
2fda0242 | 220 | |
a98cef7e KN |
221 | \f |
222 | /* | |
223 | * VM | |
224 | */ | |
225 | ||
b7393ea1 AW |
226 | static SCM |
227 | resolve_variable (SCM what, SCM program_module) | |
228 | { | |
9bd48cb1 | 229 | if (SCM_LIKELY (scm_is_symbol (what))) |
b7393ea1 AW |
230 | { |
231 | if (SCM_LIKELY (scm_module_system_booted_p | |
232 | && scm_is_true (program_module))) | |
233 | /* might longjmp */ | |
234 | return scm_module_lookup (program_module, what); | |
235 | else | |
236 | { | |
237 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
238 | if (scm_is_false (v)) | |
239 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
240 | else | |
241 | return v; | |
242 | } | |
243 | } | |
244 | else | |
245 | { | |
246 | SCM mod; | |
247 | /* compilation of @ or @@ | |
248 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
249 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
250 | */ | |
251 | mod = scm_resolve_module (SCM_CAR (what)); | |
252 | if (scm_is_true (SCM_CADDR (what))) | |
253 | mod = scm_module_public_interface (mod); | |
5c8cefe5 | 254 | if (scm_is_false (mod)) |
b7393ea1 AW |
255 | scm_misc_error (NULL, "no such module: ~S", |
256 | scm_list_1 (SCM_CAR (what))); | |
257 | /* might longjmp */ | |
258 | return scm_module_lookup (mod, SCM_CADR (what)); | |
259 | } | |
260 | } | |
261 | ||
23f276de AW |
262 | static SCM |
263 | apply_foreign (SCM proc, SCM *args, int nargs, int headroom) | |
264 | { | |
23f276de AW |
265 | SCM_ASRTGO (SCM_NIMP (proc), badproc); |
266 | ||
23f276de AW |
267 | switch (SCM_TYP7 (proc)) |
268 | { | |
23f276de AW |
269 | case scm_tc7_smob: |
270 | if (!SCM_SMOB_APPLICABLE_P (proc)) | |
271 | goto badproc; | |
272 | switch (nargs) | |
273 | { | |
274 | case 0: | |
275 | return SCM_SMOB_APPLY_0 (proc); | |
276 | case 1: | |
a941cde9 | 277 | return SCM_SMOB_APPLY_1 (proc, args[0]); |
23f276de | 278 | case 2: |
a941cde9 | 279 | return SCM_SMOB_APPLY_2 (proc, args[0], args[1]); |
23f276de AW |
280 | default: |
281 | { | |
282 | SCM arglist = SCM_EOL; | |
283 | while (nargs-- > 2) | |
284 | arglist = scm_cons (args[nargs], arglist); | |
a941cde9 | 285 | return SCM_SMOB_APPLY_3 (proc, args[0], args[1], arglist); |
23f276de AW |
286 | } |
287 | } | |
288 | case scm_tc7_gsubr: | |
289 | return scm_i_gsubr_apply_array (proc, args, nargs, headroom); | |
290 | default: | |
291 | badproc: | |
292 | scm_wrong_type_arg ("apply", SCM_ARG1, proc); | |
293 | } | |
294 | } | |
295 | ||
b7393ea1 | 296 | |
51e9ba2f | 297 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 298 | |
17e90c5e | 299 | #define VM_NAME vm_regular_engine |
6d14383e AW |
300 | #define FUNC_NAME "vm-regular-engine" |
301 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 302 | #include "vm-engine.c" |
17e90c5e | 303 | #undef VM_NAME |
6d14383e | 304 | #undef FUNC_NAME |
17e90c5e | 305 | #undef VM_ENGINE |
17e90c5e KN |
306 | |
307 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
308 | #define FUNC_NAME "vm-debug-engine" |
309 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 310 | #include "vm-engine.c" |
17e90c5e | 311 | #undef VM_NAME |
6d14383e | 312 | #undef FUNC_NAME |
17e90c5e KN |
313 | #undef VM_ENGINE |
314 | ||
6d14383e AW |
315 | static const scm_t_vm_engine vm_engines[] = |
316 | { vm_regular_engine, vm_debug_engine }; | |
317 | ||
f9e8c09d | 318 | scm_t_bits scm_tc16_vm; |
a98cef7e | 319 | |
e3eb628d LC |
320 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
321 | ||
322 | /* The GC "kind" for the VM stack. */ | |
323 | static int vm_stack_gc_kind; | |
324 | ||
325 | #endif | |
326 | ||
a98cef7e | 327 | static SCM |
17e90c5e KN |
328 | make_vm (void) |
329 | #define FUNC_NAME "make_vm" | |
a98cef7e | 330 | { |
17e90c5e | 331 | int i; |
7f991c7d | 332 | struct scm_vm *vp; |
747a1635 AW |
333 | |
334 | if (!scm_tc16_vm) | |
335 | return SCM_BOOL_F; /* not booted yet */ | |
336 | ||
7f991c7d | 337 | vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
d8eeb67c | 338 | |
3d5ee0cd | 339 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
e3eb628d LC |
340 | |
341 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
342 | vp->stack_base = GC_generic_malloc (vp->stack_size * sizeof (SCM), | |
343 | vm_stack_gc_kind); | |
344 | ||
345 | /* Keep a pointer to VP so that `vm_stack_mark ()' can know what the stack | |
346 | top is. */ | |
347 | *vp->stack_base = PTR2SCM (vp); | |
348 | vp->stack_base++; | |
349 | vp->stack_size--; | |
350 | #else | |
d8eeb67c LC |
351 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
352 | "stack-base"); | |
e3eb628d LC |
353 | #endif |
354 | ||
2bbe1533 AW |
355 | #ifdef VM_ENABLE_STACK_NULLING |
356 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
357 | #endif | |
75d315e1 | 358 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
359 | vp->ip = NULL; |
360 | vp->sp = vp->stack_base - 1; | |
361 | vp->fp = NULL; | |
6d14383e | 362 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd | 363 | vp->options = SCM_EOL; |
7656f194 | 364 | vp->trace_level = 0; |
17e90c5e | 365 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd KN |
366 | vp->hooks[i] = SCM_BOOL_F; |
367 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); | |
a98cef7e | 368 | } |
17e90c5e | 369 | #undef FUNC_NAME |
a98cef7e | 370 | |
e3eb628d LC |
371 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
372 | ||
373 | /* Mark the VM stack region between its base and its current top. */ | |
374 | static struct GC_ms_entry * | |
375 | vm_stack_mark (GC_word *addr, struct GC_ms_entry *mark_stack_ptr, | |
376 | struct GC_ms_entry *mark_stack_limit, GC_word env) | |
377 | { | |
378 | GC_word *word; | |
379 | const struct scm_vm *vm; | |
380 | ||
381 | /* The first word of the VM stack should contain a pointer to the | |
382 | corresponding VM. */ | |
383 | vm = * ((struct scm_vm **) addr); | |
384 | ||
8071c490 LC |
385 | if (vm == NULL |
386 | || (SCM *) addr != vm->stack_base - 1 | |
78747ac6 | 387 | || vm->stack_limit - vm->stack_base != vm->stack_size) |
e3eb628d LC |
388 | /* ADDR must be a pointer to a free-list element, which we must ignore |
389 | (see warning in <gc/gc_mark.h>). */ | |
390 | return mark_stack_ptr; | |
391 | ||
e3eb628d LC |
392 | for (word = (GC_word *) vm->stack_base; word <= (GC_word *) vm->sp; word++) |
393 | mark_stack_ptr = GC_MARK_AND_PUSH ((* (GC_word **) word), | |
394 | mark_stack_ptr, mark_stack_limit, | |
395 | NULL); | |
396 | ||
397 | return mark_stack_ptr; | |
398 | } | |
399 | ||
400 | #endif /* VM_ENABLE_PRECISE_STACK_GC_SCAN */ | |
401 | ||
402 | ||
6d14383e | 403 | SCM |
4abef68f | 404 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 405 | { |
4abef68f | 406 | struct scm_vm *vp = SCM_VM_DATA (vm); |
7656f194 | 407 | return vm_engines[vp->engine](vm, program, argv, nargs); |
6d14383e AW |
408 | } |
409 | ||
17e90c5e KN |
410 | SCM |
411 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
412 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 413 | { |
6d14383e AW |
414 | SCM *argv; |
415 | int i, nargs; | |
416 | ||
417 | SCM_VALIDATE_VM (1, vm); | |
67e2d80a | 418 | SCM_VALIDATE_PROC (2, program); |
6d14383e AW |
419 | |
420 | nargs = scm_ilength (args); | |
421 | if (SCM_UNLIKELY (nargs < 0)) | |
422 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
423 | ||
424 | argv = alloca(nargs * sizeof(SCM)); | |
425 | for (i = 0; i < nargs; i++) | |
426 | { | |
427 | argv[i] = SCM_CAR (args); | |
428 | args = SCM_CDR (args); | |
429 | } | |
430 | ||
4abef68f | 431 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 432 | } |
17e90c5e | 433 | #undef FUNC_NAME |
a98cef7e | 434 | |
14aa25e4 AW |
435 | SCM |
436 | scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id) | |
437 | { | |
438 | return scm_c_vm_run (vm, thunk, NULL, 0); | |
439 | } | |
440 | ||
a98cef7e KN |
441 | /* Scheme interface */ |
442 | ||
443 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
444 | (void), |
445 | "") | |
a98cef7e KN |
446 | #define FUNC_NAME s_scm_vm_version |
447 | { | |
d3518113 | 448 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
449 | } |
450 | #undef FUNC_NAME | |
451 | ||
499a4c07 | 452 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 453 | (void), |
499a4c07 KN |
454 | "") |
455 | #define FUNC_NAME s_scm_the_vm | |
456 | { | |
2bbe1533 | 457 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 458 | |
8b22ed7a | 459 | if (SCM_UNLIKELY (scm_is_false ((t->vm)))) |
2bbe1533 | 460 | t->vm = make_vm (); |
f63ea2ce | 461 | |
2bbe1533 | 462 | return t->vm; |
499a4c07 KN |
463 | } |
464 | #undef FUNC_NAME | |
465 | ||
466 | ||
a98cef7e KN |
467 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
468 | (SCM obj), | |
17e90c5e | 469 | "") |
a98cef7e KN |
470 | #define FUNC_NAME s_scm_vm_p |
471 | { | |
9bd48cb1 | 472 | return scm_from_bool (SCM_VM_P (obj)); |
a98cef7e KN |
473 | } |
474 | #undef FUNC_NAME | |
475 | ||
476 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
477 | (void), |
478 | "") | |
479 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 480 | { |
17e90c5e | 481 | return make_vm (); |
a98cef7e KN |
482 | } |
483 | #undef FUNC_NAME | |
484 | ||
17e90c5e | 485 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 486 | (SCM vm), |
17e90c5e KN |
487 | "") |
488 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
489 | { |
490 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 491 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
492 | } |
493 | #undef FUNC_NAME | |
494 | ||
495 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
496 | (SCM vm), | |
17e90c5e | 497 | "") |
a98cef7e KN |
498 | #define FUNC_NAME s_scm_vm_sp |
499 | { | |
500 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 501 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
502 | } |
503 | #undef FUNC_NAME | |
504 | ||
505 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
506 | (SCM vm), | |
17e90c5e | 507 | "") |
a98cef7e KN |
508 | #define FUNC_NAME s_scm_vm_fp |
509 | { | |
510 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 511 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
512 | } |
513 | #undef FUNC_NAME | |
514 | ||
17e90c5e KN |
515 | #define VM_DEFINE_HOOK(n) \ |
516 | { \ | |
3d5ee0cd | 517 | struct scm_vm *vp; \ |
17e90c5e | 518 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd | 519 | vp = SCM_VM_DATA (vm); \ |
8b22ed7a | 520 | if (scm_is_false (vp->hooks[n])) \ |
238e7a11 | 521 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 522 | return vp->hooks[n]; \ |
17e90c5e KN |
523 | } |
524 | ||
525 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 526 | (SCM vm), |
17e90c5e KN |
527 | "") |
528 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 529 | { |
17e90c5e | 530 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
531 | } |
532 | #undef FUNC_NAME | |
533 | ||
17e90c5e KN |
534 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
535 | (SCM vm), | |
536 | "") | |
537 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 538 | { |
17e90c5e | 539 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
540 | } |
541 | #undef FUNC_NAME | |
542 | ||
17e90c5e | 543 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 544 | (SCM vm), |
17e90c5e KN |
545 | "") |
546 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 547 | { |
17e90c5e | 548 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
549 | } |
550 | #undef FUNC_NAME | |
551 | ||
7a0d0cee KN |
552 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
553 | (SCM vm), | |
554 | "") | |
555 | #define FUNC_NAME s_scm_vm_break_hook | |
556 | { | |
557 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
558 | } | |
559 | #undef FUNC_NAME | |
560 | ||
17e90c5e KN |
561 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
562 | (SCM vm), | |
563 | "") | |
564 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 565 | { |
17e90c5e | 566 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
567 | } |
568 | #undef FUNC_NAME | |
569 | ||
17e90c5e KN |
570 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
571 | (SCM vm), | |
572 | "") | |
573 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 574 | { |
17e90c5e | 575 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
576 | } |
577 | #undef FUNC_NAME | |
578 | ||
17e90c5e | 579 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 580 | (SCM vm), |
17e90c5e KN |
581 | "") |
582 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 583 | { |
17e90c5e | 584 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
585 | } |
586 | #undef FUNC_NAME | |
587 | ||
17e90c5e | 588 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 589 | (SCM vm), |
17e90c5e KN |
590 | "") |
591 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 592 | { |
17e90c5e | 593 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
594 | } |
595 | #undef FUNC_NAME | |
596 | ||
17e90c5e KN |
597 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
598 | (SCM vm, SCM key), | |
599 | "") | |
600 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
601 | { |
602 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 603 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
604 | } |
605 | #undef FUNC_NAME | |
606 | ||
17e90c5e KN |
607 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
608 | (SCM vm, SCM key, SCM val), | |
609 | "") | |
610 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
611 | { |
612 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
613 | SCM_VM_DATA (vm)->options |
614 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
615 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
616 | } |
617 | #undef FUNC_NAME | |
618 | ||
7656f194 | 619 | SCM_DEFINE (scm_vm_trace_level, "vm-trace-level", 1, 0, 0, |
17e90c5e KN |
620 | (SCM vm), |
621 | "") | |
7656f194 | 622 | #define FUNC_NAME s_scm_vm_trace_level |
a98cef7e | 623 | { |
a98cef7e | 624 | SCM_VALIDATE_VM (1, vm); |
7656f194 AW |
625 | return scm_from_int (SCM_VM_DATA (vm)->trace_level); |
626 | } | |
627 | #undef FUNC_NAME | |
628 | ||
629 | SCM_DEFINE (scm_set_vm_trace_level_x, "set-vm-trace-level!", 2, 0, 0, | |
630 | (SCM vm, SCM level), | |
631 | "") | |
632 | #define FUNC_NAME s_scm_set_vm_trace_level_x | |
633 | { | |
634 | SCM_VALIDATE_VM (1, vm); | |
635 | SCM_VM_DATA (vm)->trace_level = scm_to_int (level); | |
636 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
637 | } |
638 | #undef FUNC_NAME | |
639 | ||
640 | \f | |
641 | /* | |
17e90c5e | 642 | * Initialize |
a98cef7e KN |
643 | */ |
644 | ||
07e56b27 AW |
645 | SCM scm_load_compiled_with_vm (SCM file) |
646 | { | |
53e28ed9 | 647 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 648 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 649 | |
4abef68f | 650 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
651 | } |
652 | ||
17e90c5e | 653 | void |
07e56b27 | 654 | scm_bootstrap_vm (void) |
17e90c5e | 655 | { |
17e90c5e | 656 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
a98cef7e | 657 | |
17e90c5e | 658 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
17e90c5e | 659 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); |
a98cef7e | 660 | |
60ae5ca2 AW |
661 | scm_c_register_extension ("libguile", "scm_init_vm", |
662 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
663 | ||
e3eb628d LC |
664 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
665 | vm_stack_gc_kind = | |
666 | GC_new_kind (GC_new_free_list (), | |
667 | GC_MAKE_PROC (GC_new_proc (vm_stack_mark), 0), | |
668 | 0, 1); | |
669 | ||
670 | #endif | |
07e56b27 AW |
671 | } |
672 | ||
673 | void | |
674 | scm_init_vm (void) | |
675 | { | |
17e90c5e | 676 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 677 | #include "libguile/vm.x" |
17e90c5e | 678 | #endif |
a98cef7e | 679 | } |
17e90c5e KN |
680 | |
681 | /* | |
682 | Local Variables: | |
683 | c-file-style: "gnu" | |
684 | End: | |
685 | */ |