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 | ||
6f3b0cc2 AW |
74 | void |
75 | scm_i_vm_cont_print (SCM x, SCM port, scm_print_state *pstate) | |
76 | { | |
77 | scm_puts ("#<vm-continuation ", port); | |
78 | scm_uintprint (SCM_UNPACK (x), 16, port); | |
79 | scm_puts (">", port); | |
80 | } | |
17e90c5e | 81 | |
a98cef7e | 82 | static SCM |
3d5ee0cd | 83 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 84 | { |
bfffd258 AW |
85 | struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
86 | p->stack_size = vp->sp - vp->stack_base + 1; | |
d8eeb67c LC |
87 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
88 | "capture_vm_cont"); | |
11ea1aba | 89 | #ifdef VM_ENABLE_STACK_NULLING |
66db076a AW |
90 | if (vp->sp >= vp->stack_base) |
91 | if (!vp->sp[0] || vp->sp[1]) | |
92 | abort (); | |
11ea1aba AW |
93 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
94 | #endif | |
3d5ee0cd | 95 | p->ip = vp->ip; |
7aa6f86b AW |
96 | p->sp = vp->sp; |
97 | p->fp = vp->fp; | |
bfffd258 | 98 | memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM)); |
11ea1aba | 99 | p->reloc = p->stack_base - vp->stack_base; |
6f3b0cc2 | 100 | return scm_cell (scm_tc7_vm_cont, (scm_t_bits)p); |
a98cef7e KN |
101 | } |
102 | ||
103 | static void | |
3d5ee0cd | 104 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 105 | { |
bfffd258 | 106 | struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont); |
3d5ee0cd | 107 | if (vp->stack_size < p->stack_size) |
a98cef7e | 108 | { |
17e90c5e | 109 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
110 | abort (); |
111 | } | |
11ea1aba AW |
112 | #ifdef VM_ENABLE_STACK_NULLING |
113 | { | |
7aa6f86b | 114 | scm_t_ptrdiff nzero = (vp->sp - p->sp); |
11ea1aba | 115 | if (nzero > 0) |
66db076a AW |
116 | memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM)); |
117 | /* actually nzero should always be negative, because vm_reset_stack will | |
118 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
119 | } |
120 | #endif | |
3d5ee0cd | 121 | vp->ip = p->ip; |
7aa6f86b AW |
122 | vp->sp = p->sp; |
123 | vp->fp = p->fp; | |
bfffd258 AW |
124 | memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM)); |
125 | } | |
126 | ||
127 | /* In theory, a number of vm instances can be active in the call trace, and we | |
128 | only want to reify the continuations of those in the current continuation | |
129 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
130 | and previous values of the *the-vm* fluid within the current continuation | |
131 | root. But we don't have access to continuation roots in the dynwind stack. | |
132 | So, just punt for now -- take the current value of *the-vm*. | |
133 | ||
134 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
135 | continuation root is inside VM code, and call/cc was invoked within that same | |
136 | call to vm_run; but that's currently not implemented. | |
137 | */ | |
138 | SCM | |
139 | scm_vm_capture_continuations (void) | |
140 | { | |
141 | SCM vm = scm_the_vm (); | |
142 | return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL); | |
143 | } | |
144 | ||
145 | void | |
146 | scm_vm_reinstate_continuations (SCM conts) | |
147 | { | |
148 | for (; conts != SCM_EOL; conts = SCM_CDR (conts)) | |
149 | reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts)); | |
a98cef7e KN |
150 | } |
151 | ||
b1b942b7 | 152 | static void |
7656f194 | 153 | vm_dispatch_hook (SCM vm, int hook_num) |
b1b942b7 | 154 | { |
7656f194 AW |
155 | struct scm_vm *vp; |
156 | SCM hook; | |
157 | SCM frame; | |
b1b942b7 | 158 | |
7656f194 AW |
159 | vp = SCM_VM_DATA (vm); |
160 | hook = vp->hooks[hook_num]; | |
b1b942b7 | 161 | |
7656f194 AW |
162 | if (SCM_LIKELY (scm_is_false (hook)) |
163 | || scm_is_null (SCM_HOOK_PROCEDURES (hook))) | |
164 | return; | |
165 | ||
166 | vp->trace_level--; | |
167 | frame = scm_c_make_frame (vm, vp->fp, vp->sp, vp->ip, 0); | |
168 | scm_c_run_hookn (hook, &frame, 1); | |
169 | vp->trace_level++; | |
b1b942b7 AW |
170 | } |
171 | ||
17e90c5e KN |
172 | \f |
173 | /* | |
174 | * VM Internal functions | |
175 | */ | |
176 | ||
f6a8e791 AW |
177 | SCM_SYMBOL (sym_vm_run, "vm-run"); |
178 | SCM_SYMBOL (sym_vm_error, "vm-error"); | |
179 | SCM_SYMBOL (sym_keyword_argument_error, "keyword-argument-error"); | |
180 | SCM_SYMBOL (sym_debug, "debug"); | |
17e90c5e | 181 | |
6f3b0cc2 AW |
182 | void |
183 | scm_i_vm_print (SCM x, SCM port, scm_print_state *pstate) | |
184 | { | |
185 | scm_puts ("#<vm ", port); | |
186 | scm_uintprint (SCM_UNPACK (x), 16, port); | |
187 | scm_puts (">", port); | |
188 | } | |
189 | ||
2fda0242 | 190 | static SCM |
d2d7acd5 | 191 | really_make_boot_program (long nargs) |
2fda0242 | 192 | { |
5bd047ce | 193 | SCM u8vec; |
97fcf583 AW |
194 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 0, 1, |
195 | scm_op_make_int8_1, scm_op_halt }; | |
28b119ee | 196 | struct scm_objcode *bp; |
3b9e095b | 197 | SCM ret; |
5bd047ce | 198 | |
53e28ed9 | 199 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 200 | abort (); |
28b119ee AW |
201 | text[1] = (scm_t_uint8)nargs; |
202 | ||
d7e7a02a | 203 | bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text)); |
3dbbe28d | 204 | memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text)); |
28b119ee AW |
205 | bp->len = sizeof(text); |
206 | bp->metalen = 0; | |
28b119ee | 207 | |
7055591c AW |
208 | u8vec = scm_c_take_bytevector ((scm_t_int8*)bp, |
209 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 210 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 211 | SCM_BOOL_F, SCM_BOOL_F); |
ba20f78a | 212 | SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 213 | |
3b9e095b | 214 | return ret; |
2fda0242 | 215 | } |
d2d7acd5 AW |
216 | #define NUM_BOOT_PROGS 8 |
217 | static SCM | |
218 | vm_make_boot_program (long nargs) | |
219 | { | |
220 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
221 | ||
222 | if (SCM_UNLIKELY (!programs[0])) | |
223 | { | |
224 | int i; | |
225 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
f39448c5 | 226 | programs[i] = really_make_boot_program (i); |
d2d7acd5 AW |
227 | } |
228 | ||
229 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
230 | return programs[nargs]; | |
231 | else | |
232 | return really_make_boot_program (nargs); | |
233 | } | |
2fda0242 | 234 | |
a98cef7e KN |
235 | \f |
236 | /* | |
237 | * VM | |
238 | */ | |
239 | ||
b7393ea1 AW |
240 | static SCM |
241 | resolve_variable (SCM what, SCM program_module) | |
242 | { | |
9bd48cb1 | 243 | if (SCM_LIKELY (scm_is_symbol (what))) |
b7393ea1 AW |
244 | { |
245 | if (SCM_LIKELY (scm_module_system_booted_p | |
246 | && scm_is_true (program_module))) | |
247 | /* might longjmp */ | |
248 | return scm_module_lookup (program_module, what); | |
249 | else | |
250 | { | |
251 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
252 | if (scm_is_false (v)) | |
253 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
254 | else | |
255 | return v; | |
256 | } | |
257 | } | |
258 | else | |
259 | { | |
260 | SCM mod; | |
261 | /* compilation of @ or @@ | |
262 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
263 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
264 | */ | |
265 | mod = scm_resolve_module (SCM_CAR (what)); | |
266 | if (scm_is_true (SCM_CADDR (what))) | |
267 | mod = scm_module_public_interface (mod); | |
5c8cefe5 | 268 | if (scm_is_false (mod)) |
b7393ea1 AW |
269 | scm_misc_error (NULL, "no such module: ~S", |
270 | scm_list_1 (SCM_CAR (what))); | |
271 | /* might longjmp */ | |
272 | return scm_module_lookup (mod, SCM_CADR (what)); | |
273 | } | |
274 | } | |
275 | ||
51e9ba2f | 276 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 277 | |
17e90c5e | 278 | #define VM_NAME vm_regular_engine |
6d14383e AW |
279 | #define FUNC_NAME "vm-regular-engine" |
280 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 281 | #include "vm-engine.c" |
17e90c5e | 282 | #undef VM_NAME |
6d14383e | 283 | #undef FUNC_NAME |
17e90c5e | 284 | #undef VM_ENGINE |
17e90c5e KN |
285 | |
286 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
287 | #define FUNC_NAME "vm-debug-engine" |
288 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 289 | #include "vm-engine.c" |
17e90c5e | 290 | #undef VM_NAME |
6d14383e | 291 | #undef FUNC_NAME |
17e90c5e KN |
292 | #undef VM_ENGINE |
293 | ||
6d14383e AW |
294 | static const scm_t_vm_engine vm_engines[] = |
295 | { vm_regular_engine, vm_debug_engine }; | |
296 | ||
e3eb628d LC |
297 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
298 | ||
299 | /* The GC "kind" for the VM stack. */ | |
300 | static int vm_stack_gc_kind; | |
301 | ||
302 | #endif | |
303 | ||
a98cef7e | 304 | static SCM |
17e90c5e KN |
305 | make_vm (void) |
306 | #define FUNC_NAME "make_vm" | |
a98cef7e | 307 | { |
17e90c5e | 308 | int i; |
7f991c7d | 309 | struct scm_vm *vp; |
747a1635 | 310 | |
7f991c7d | 311 | vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
d8eeb67c | 312 | |
3d5ee0cd | 313 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
e3eb628d LC |
314 | |
315 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
4168aa46 TTN |
316 | vp->stack_base = (SCM *) |
317 | GC_generic_malloc (vp->stack_size * sizeof (SCM), vm_stack_gc_kind); | |
e3eb628d LC |
318 | |
319 | /* Keep a pointer to VP so that `vm_stack_mark ()' can know what the stack | |
320 | top is. */ | |
321 | *vp->stack_base = PTR2SCM (vp); | |
322 | vp->stack_base++; | |
323 | vp->stack_size--; | |
324 | #else | |
d8eeb67c LC |
325 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
326 | "stack-base"); | |
e3eb628d LC |
327 | #endif |
328 | ||
2bbe1533 AW |
329 | #ifdef VM_ENABLE_STACK_NULLING |
330 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
331 | #endif | |
75d315e1 | 332 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
333 | vp->ip = NULL; |
334 | vp->sp = vp->stack_base - 1; | |
335 | vp->fp = NULL; | |
6d14383e | 336 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd | 337 | vp->options = SCM_EOL; |
7656f194 | 338 | vp->trace_level = 0; |
17e90c5e | 339 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 340 | vp->hooks[i] = SCM_BOOL_F; |
6f3b0cc2 | 341 | return scm_cell (scm_tc7_vm, (scm_t_bits)vp); |
a98cef7e | 342 | } |
17e90c5e | 343 | #undef FUNC_NAME |
a98cef7e | 344 | |
e3eb628d LC |
345 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
346 | ||
347 | /* Mark the VM stack region between its base and its current top. */ | |
348 | static struct GC_ms_entry * | |
349 | vm_stack_mark (GC_word *addr, struct GC_ms_entry *mark_stack_ptr, | |
350 | struct GC_ms_entry *mark_stack_limit, GC_word env) | |
351 | { | |
352 | GC_word *word; | |
353 | const struct scm_vm *vm; | |
354 | ||
355 | /* The first word of the VM stack should contain a pointer to the | |
356 | corresponding VM. */ | |
357 | vm = * ((struct scm_vm **) addr); | |
358 | ||
8071c490 LC |
359 | if (vm == NULL |
360 | || (SCM *) addr != vm->stack_base - 1 | |
78747ac6 | 361 | || vm->stack_limit - vm->stack_base != vm->stack_size) |
e3eb628d LC |
362 | /* ADDR must be a pointer to a free-list element, which we must ignore |
363 | (see warning in <gc/gc_mark.h>). */ | |
364 | return mark_stack_ptr; | |
365 | ||
e3eb628d LC |
366 | for (word = (GC_word *) vm->stack_base; word <= (GC_word *) vm->sp; word++) |
367 | mark_stack_ptr = GC_MARK_AND_PUSH ((* (GC_word **) word), | |
368 | mark_stack_ptr, mark_stack_limit, | |
369 | NULL); | |
370 | ||
371 | return mark_stack_ptr; | |
372 | } | |
373 | ||
374 | #endif /* VM_ENABLE_PRECISE_STACK_GC_SCAN */ | |
375 | ||
376 | ||
6d14383e | 377 | SCM |
4abef68f | 378 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 379 | { |
4abef68f | 380 | struct scm_vm *vp = SCM_VM_DATA (vm); |
7656f194 | 381 | return vm_engines[vp->engine](vm, program, argv, nargs); |
6d14383e AW |
382 | } |
383 | ||
6f3b0cc2 AW |
384 | SCM_DEFINE (scm_vm_apply, "vm-apply", 3, 0, 0, |
385 | (SCM vm, SCM program, SCM args), | |
386 | "") | |
387 | #define FUNC_NAME s_scm_vm_apply | |
a98cef7e | 388 | { |
6d14383e AW |
389 | SCM *argv; |
390 | int i, nargs; | |
391 | ||
392 | SCM_VALIDATE_VM (1, vm); | |
67e2d80a | 393 | SCM_VALIDATE_PROC (2, program); |
6d14383e AW |
394 | |
395 | nargs = scm_ilength (args); | |
396 | if (SCM_UNLIKELY (nargs < 0)) | |
397 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
398 | ||
399 | argv = alloca(nargs * sizeof(SCM)); | |
400 | for (i = 0; i < nargs; i++) | |
401 | { | |
402 | argv[i] = SCM_CAR (args); | |
403 | args = SCM_CDR (args); | |
404 | } | |
405 | ||
4abef68f | 406 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 407 | } |
17e90c5e | 408 | #undef FUNC_NAME |
a98cef7e | 409 | |
14aa25e4 AW |
410 | SCM |
411 | scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id) | |
412 | { | |
413 | return scm_c_vm_run (vm, thunk, NULL, 0); | |
414 | } | |
415 | ||
a98cef7e KN |
416 | /* Scheme interface */ |
417 | ||
418 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
419 | (void), |
420 | "") | |
a98cef7e KN |
421 | #define FUNC_NAME s_scm_vm_version |
422 | { | |
d3518113 | 423 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
424 | } |
425 | #undef FUNC_NAME | |
426 | ||
499a4c07 | 427 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 428 | (void), |
499a4c07 KN |
429 | "") |
430 | #define FUNC_NAME s_scm_the_vm | |
431 | { | |
2bbe1533 | 432 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 433 | |
8b22ed7a | 434 | if (SCM_UNLIKELY (scm_is_false ((t->vm)))) |
2bbe1533 | 435 | t->vm = make_vm (); |
f63ea2ce | 436 | |
2bbe1533 | 437 | return t->vm; |
499a4c07 KN |
438 | } |
439 | #undef FUNC_NAME | |
440 | ||
441 | ||
a98cef7e KN |
442 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
443 | (SCM obj), | |
17e90c5e | 444 | "") |
a98cef7e KN |
445 | #define FUNC_NAME s_scm_vm_p |
446 | { | |
9bd48cb1 | 447 | return scm_from_bool (SCM_VM_P (obj)); |
a98cef7e KN |
448 | } |
449 | #undef FUNC_NAME | |
450 | ||
451 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
452 | (void), |
453 | "") | |
454 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 455 | { |
17e90c5e | 456 | return make_vm (); |
a98cef7e KN |
457 | } |
458 | #undef FUNC_NAME | |
459 | ||
17e90c5e | 460 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 461 | (SCM vm), |
17e90c5e KN |
462 | "") |
463 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
464 | { |
465 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 466 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
467 | } |
468 | #undef FUNC_NAME | |
469 | ||
470 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
471 | (SCM vm), | |
17e90c5e | 472 | "") |
a98cef7e KN |
473 | #define FUNC_NAME s_scm_vm_sp |
474 | { | |
475 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 476 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
477 | } |
478 | #undef FUNC_NAME | |
479 | ||
480 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
481 | (SCM vm), | |
17e90c5e | 482 | "") |
a98cef7e KN |
483 | #define FUNC_NAME s_scm_vm_fp |
484 | { | |
485 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 486 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
487 | } |
488 | #undef FUNC_NAME | |
489 | ||
17e90c5e KN |
490 | #define VM_DEFINE_HOOK(n) \ |
491 | { \ | |
3d5ee0cd | 492 | struct scm_vm *vp; \ |
17e90c5e | 493 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd | 494 | vp = SCM_VM_DATA (vm); \ |
8b22ed7a | 495 | if (scm_is_false (vp->hooks[n])) \ |
238e7a11 | 496 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 497 | return vp->hooks[n]; \ |
17e90c5e KN |
498 | } |
499 | ||
500 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 501 | (SCM vm), |
17e90c5e KN |
502 | "") |
503 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 504 | { |
17e90c5e | 505 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
506 | } |
507 | #undef FUNC_NAME | |
508 | ||
17e90c5e KN |
509 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
510 | (SCM vm), | |
511 | "") | |
512 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 513 | { |
17e90c5e | 514 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
515 | } |
516 | #undef FUNC_NAME | |
517 | ||
17e90c5e | 518 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 519 | (SCM vm), |
17e90c5e KN |
520 | "") |
521 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 522 | { |
17e90c5e | 523 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
524 | } |
525 | #undef FUNC_NAME | |
526 | ||
7a0d0cee KN |
527 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
528 | (SCM vm), | |
529 | "") | |
530 | #define FUNC_NAME s_scm_vm_break_hook | |
531 | { | |
532 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
533 | } | |
534 | #undef FUNC_NAME | |
535 | ||
17e90c5e KN |
536 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
537 | (SCM vm), | |
538 | "") | |
539 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 540 | { |
17e90c5e | 541 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
542 | } |
543 | #undef FUNC_NAME | |
544 | ||
17e90c5e KN |
545 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
546 | (SCM vm), | |
547 | "") | |
548 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 549 | { |
17e90c5e | 550 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
551 | } |
552 | #undef FUNC_NAME | |
553 | ||
17e90c5e | 554 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 555 | (SCM vm), |
17e90c5e KN |
556 | "") |
557 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 558 | { |
17e90c5e | 559 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
560 | } |
561 | #undef FUNC_NAME | |
562 | ||
17e90c5e | 563 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 564 | (SCM vm), |
17e90c5e KN |
565 | "") |
566 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 567 | { |
17e90c5e | 568 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
569 | } |
570 | #undef FUNC_NAME | |
571 | ||
17e90c5e KN |
572 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
573 | (SCM vm, SCM key), | |
574 | "") | |
575 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
576 | { |
577 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 578 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
579 | } |
580 | #undef FUNC_NAME | |
581 | ||
17e90c5e KN |
582 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
583 | (SCM vm, SCM key, SCM val), | |
584 | "") | |
585 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
586 | { |
587 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
588 | SCM_VM_DATA (vm)->options |
589 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
590 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
591 | } |
592 | #undef FUNC_NAME | |
593 | ||
7656f194 | 594 | SCM_DEFINE (scm_vm_trace_level, "vm-trace-level", 1, 0, 0, |
17e90c5e KN |
595 | (SCM vm), |
596 | "") | |
7656f194 | 597 | #define FUNC_NAME s_scm_vm_trace_level |
a98cef7e | 598 | { |
a98cef7e | 599 | SCM_VALIDATE_VM (1, vm); |
7656f194 AW |
600 | return scm_from_int (SCM_VM_DATA (vm)->trace_level); |
601 | } | |
602 | #undef FUNC_NAME | |
603 | ||
604 | SCM_DEFINE (scm_set_vm_trace_level_x, "set-vm-trace-level!", 2, 0, 0, | |
605 | (SCM vm, SCM level), | |
606 | "") | |
607 | #define FUNC_NAME s_scm_set_vm_trace_level_x | |
608 | { | |
609 | SCM_VALIDATE_VM (1, vm); | |
610 | SCM_VM_DATA (vm)->trace_level = scm_to_int (level); | |
611 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
612 | } |
613 | #undef FUNC_NAME | |
614 | ||
615 | \f | |
616 | /* | |
17e90c5e | 617 | * Initialize |
a98cef7e KN |
618 | */ |
619 | ||
07e56b27 AW |
620 | SCM scm_load_compiled_with_vm (SCM file) |
621 | { | |
53e28ed9 | 622 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 623 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 624 | |
4abef68f | 625 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
626 | } |
627 | ||
17e90c5e | 628 | void |
07e56b27 | 629 | scm_bootstrap_vm (void) |
17e90c5e | 630 | { |
60ae5ca2 AW |
631 | scm_c_register_extension ("libguile", "scm_init_vm", |
632 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
633 | ||
e3eb628d LC |
634 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
635 | vm_stack_gc_kind = | |
636 | GC_new_kind (GC_new_free_list (), | |
637 | GC_MAKE_PROC (GC_new_proc (vm_stack_mark), 0), | |
638 | 0, 1); | |
639 | ||
640 | #endif | |
07e56b27 AW |
641 | } |
642 | ||
643 | void | |
644 | scm_init_vm (void) | |
645 | { | |
17e90c5e | 646 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 647 | #include "libguile/vm.x" |
17e90c5e | 648 | #endif |
a98cef7e | 649 | } |
17e90c5e KN |
650 | |
651 | /* | |
652 | Local Variables: | |
653 | c-file-style: "gnu" | |
654 | End: | |
655 | */ |