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" |
adaf86ec | 31 | #include "control.h" |
ac99cb0c | 32 | #include "frames.h" |
17e90c5e | 33 | #include "instructions.h" |
8f5cfc81 | 34 | #include "objcodes.h" |
ac99cb0c | 35 | #include "programs.h" |
fb10a008 | 36 | #include "lang.h" /* NULL_OR_NIL_P */ |
a98cef7e KN |
37 | #include "vm.h" |
38 | ||
a98cef7e KN |
39 | /* I sometimes use this for debugging. */ |
40 | #define vm_puts(OBJ) \ | |
41 | { \ | |
22bcbe8c AW |
42 | scm_display (OBJ, scm_current_error_port ()); \ |
43 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
44 | } |
45 | ||
11ea1aba AW |
46 | /* The VM has a number of internal assertions that shouldn't normally be |
47 | necessary, but might be if you think you found a bug in the VM. */ | |
48 | #define VM_ENABLE_ASSERTIONS | |
49 | ||
50 | /* We can add a mode that ensures that all stack items above the stack pointer | |
51 | are NULL. This is useful for checking the internal consistency of the VM's | |
52 | assumptions and its operators, but isn't necessary for normal operation. It | |
616167fc | 53 | will ensure that assertions are enabled. Slows down the VM by about 30%. */ |
747a1635 | 54 | /* NB! If you enable this, search for NULLING in throw.c */ |
616167fc | 55 | /* #define VM_ENABLE_STACK_NULLING */ |
11ea1aba | 56 | |
53e28ed9 AW |
57 | /* #define VM_ENABLE_PARANOID_ASSERTIONS */ |
58 | ||
11ea1aba AW |
59 | #if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS) |
60 | #define VM_ENABLE_ASSERTIONS | |
61 | #endif | |
62 | ||
e3eb628d LC |
63 | /* When defined, arrange so that the GC doesn't scan the VM stack beyond its |
64 | current SP. This should help avoid excess data retention. See | |
65 | http://thread.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/3001 | |
66 | for a discussion. */ | |
67 | #define VM_ENABLE_PRECISE_STACK_GC_SCAN | |
68 | ||
69 | ||
a98cef7e | 70 | \f |
a98cef7e KN |
71 | /* |
72 | * VM Continuation | |
73 | */ | |
74 | ||
6f3b0cc2 AW |
75 | void |
76 | scm_i_vm_cont_print (SCM x, SCM port, scm_print_state *pstate) | |
77 | { | |
78 | scm_puts ("#<vm-continuation ", port); | |
79 | scm_uintprint (SCM_UNPACK (x), 16, port); | |
80 | scm_puts (">", port); | |
81 | } | |
17e90c5e | 82 | |
d8873dfe AW |
83 | /* In theory, a number of vm instances can be active in the call trace, and we |
84 | only want to reify the continuations of those in the current continuation | |
85 | root. I don't see a nice way to do this -- ideally it would involve dynwinds, | |
86 | and previous values of the *the-vm* fluid within the current continuation | |
87 | root. But we don't have access to continuation roots in the dynwind stack. | |
88 | So, just punt for now, we just capture the continuation for the current VM. | |
89 | ||
90 | While I'm on the topic, ideally we could avoid copying the C stack if the | |
91 | continuation root is inside VM code, and call/cc was invoked within that same | |
92 | call to vm_run; but that's currently not implemented. | |
93 | */ | |
a98cef7e | 94 | static SCM |
d8873dfe AW |
95 | vm_capture_continuation (SCM *stack_base, |
96 | SCM *fp, SCM *sp, scm_t_uint8 *ra, scm_t_uint8 *mvra) | |
a98cef7e | 97 | { |
d8873dfe AW |
98 | struct scm_vm_cont *p; |
99 | ||
100 | p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); | |
101 | p->stack_size = sp - stack_base + 1; | |
d8eeb67c LC |
102 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
103 | "capture_vm_cont"); | |
d8873dfe AW |
104 | #if defined(VM_ENABLE_STACK_NULLING) && 0 |
105 | /* Tail continuations leave their frame on the stack for subsequent | |
106 | application, but don't capture the frame -- so there are some elements on | |
107 | the stack then, and this check doesn't work, so disable it for now. */ | |
108 | if (sp >= vp->stack_base) | |
66db076a AW |
109 | if (!vp->sp[0] || vp->sp[1]) |
110 | abort (); | |
11ea1aba AW |
111 | memset (p->stack_base, 0, p->stack_size * sizeof (SCM)); |
112 | #endif | |
d8873dfe AW |
113 | p->ra = ra; |
114 | p->mvra = mvra; | |
115 | p->sp = sp; | |
116 | p->fp = fp; | |
117 | memcpy (p->stack_base, stack_base, (sp + 1 - stack_base) * sizeof (SCM)); | |
118 | p->reloc = p->stack_base - stack_base; | |
6f3b0cc2 | 119 | return scm_cell (scm_tc7_vm_cont, (scm_t_bits)p); |
a98cef7e KN |
120 | } |
121 | ||
122 | static void | |
d8873dfe | 123 | vm_return_to_continuation (SCM vm, SCM cont, size_t n, SCM *argv) |
a98cef7e | 124 | { |
d8873dfe AW |
125 | struct scm_vm *vp; |
126 | struct scm_vm_cont *cp; | |
127 | SCM *argv_copy; | |
128 | ||
129 | argv_copy = alloca (n * sizeof(SCM)); | |
130 | memcpy (argv_copy, argv, n * sizeof(SCM)); | |
131 | ||
132 | vp = SCM_VM_DATA (vm); | |
133 | cp = SCM_VM_CONT_DATA (cont); | |
134 | ||
135 | if (n == 0 && !cp->mvra) | |
136 | scm_misc_error (NULL, "Too few values returned to continuation", | |
137 | SCM_EOL); | |
138 | ||
139 | if (vp->stack_size < cp->stack_size + n + 1) | |
a98cef7e | 140 | { |
17e90c5e | 141 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
142 | abort (); |
143 | } | |
11ea1aba AW |
144 | #ifdef VM_ENABLE_STACK_NULLING |
145 | { | |
d8873dfe | 146 | scm_t_ptrdiff nzero = (vp->sp - cp->sp); |
11ea1aba | 147 | if (nzero > 0) |
d8873dfe | 148 | memset (vp->stack_base + cp->stack_size, 0, nzero * sizeof (SCM)); |
66db076a AW |
149 | /* actually nzero should always be negative, because vm_reset_stack will |
150 | unwind the stack to some point *below* this continuation */ | |
11ea1aba AW |
151 | } |
152 | #endif | |
d8873dfe AW |
153 | vp->sp = cp->sp; |
154 | vp->fp = cp->fp; | |
155 | memcpy (vp->stack_base, cp->stack_base, cp->stack_size * sizeof (SCM)); | |
bfffd258 | 156 | |
d8873dfe AW |
157 | if (n == 1 || !cp->mvra) |
158 | { | |
159 | vp->ip = cp->ra; | |
160 | vp->sp++; | |
161 | *vp->sp = argv_copy[0]; | |
162 | } | |
163 | else | |
164 | { | |
165 | size_t i; | |
166 | for (i = 0; i < n; i++) | |
167 | { | |
168 | vp->sp++; | |
169 | *vp->sp = argv_copy[i]; | |
170 | } | |
171 | vp->sp++; | |
172 | *vp->sp = scm_from_size_t (n); | |
173 | vp->ip = cp->mvra; | |
174 | } | |
175 | } | |
bfffd258 | 176 | |
bfffd258 | 177 | SCM |
269479e3 | 178 | scm_i_vm_capture_continuation (SCM vm) |
bfffd258 | 179 | { |
d8873dfe AW |
180 | struct scm_vm *vp = SCM_VM_DATA (vm); |
181 | return vm_capture_continuation (vp->stack_base, vp->fp, vp->sp, vp->ip, NULL); | |
a98cef7e KN |
182 | } |
183 | ||
b1b942b7 | 184 | static void |
7656f194 | 185 | vm_dispatch_hook (SCM vm, int hook_num) |
b1b942b7 | 186 | { |
7656f194 AW |
187 | struct scm_vm *vp; |
188 | SCM hook; | |
189 | SCM frame; | |
b1b942b7 | 190 | |
7656f194 AW |
191 | vp = SCM_VM_DATA (vm); |
192 | hook = vp->hooks[hook_num]; | |
b1b942b7 | 193 | |
7656f194 AW |
194 | if (SCM_LIKELY (scm_is_false (hook)) |
195 | || scm_is_null (SCM_HOOK_PROCEDURES (hook))) | |
196 | return; | |
197 | ||
198 | vp->trace_level--; | |
199 | frame = scm_c_make_frame (vm, vp->fp, vp->sp, vp->ip, 0); | |
200 | scm_c_run_hookn (hook, &frame, 1); | |
201 | vp->trace_level++; | |
b1b942b7 AW |
202 | } |
203 | ||
eaefabee | 204 | static void vm_abort (SCM vm, size_t n) SCM_NORETURN; |
4f66bcde | 205 | static void |
eaefabee | 206 | vm_abort (SCM vm, size_t n) |
4f66bcde | 207 | { |
eaefabee | 208 | size_t i; |
2d026f04 AW |
209 | ssize_t tail_len; |
210 | SCM tag, tail, *argv; | |
eaefabee | 211 | |
2d026f04 AW |
212 | /* FIXME: VM_ENABLE_STACK_NULLING */ |
213 | tail = *(SCM_VM_DATA (vm)->sp--); | |
214 | /* NULLSTACK (1) */ | |
215 | tail_len = scm_ilength (tail); | |
216 | if (tail_len < 0) | |
217 | abort (); | |
eaefabee | 218 | tag = SCM_VM_DATA (vm)->sp[-n]; |
2d026f04 | 219 | argv = alloca ((n + tail_len) * sizeof (SCM)); |
eaefabee AW |
220 | for (i = 0; i < n; i++) |
221 | argv[i] = SCM_VM_DATA (vm)->sp[-(n-1-i)]; | |
2d026f04 AW |
222 | for (; i < n + tail_len; i++, tail = scm_cdr (tail)) |
223 | argv[i] = scm_car (tail); | |
224 | /* NULLSTACK (n + 1) */ | |
eaefabee AW |
225 | SCM_VM_DATA (vm)->sp -= n + 1; |
226 | ||
2d026f04 | 227 | scm_c_abort (vm, tag, n + tail_len, argv); |
4f66bcde AW |
228 | } |
229 | ||
230 | \f | |
17e90c5e KN |
231 | /* |
232 | * VM Internal functions | |
233 | */ | |
234 | ||
f6a8e791 AW |
235 | SCM_SYMBOL (sym_vm_run, "vm-run"); |
236 | SCM_SYMBOL (sym_vm_error, "vm-error"); | |
237 | SCM_SYMBOL (sym_keyword_argument_error, "keyword-argument-error"); | |
238 | SCM_SYMBOL (sym_debug, "debug"); | |
17e90c5e | 239 | |
6f3b0cc2 AW |
240 | void |
241 | scm_i_vm_print (SCM x, SCM port, scm_print_state *pstate) | |
242 | { | |
243 | scm_puts ("#<vm ", port); | |
244 | scm_uintprint (SCM_UNPACK (x), 16, port); | |
245 | scm_puts (">", port); | |
246 | } | |
247 | ||
2fda0242 | 248 | static SCM |
d2d7acd5 | 249 | really_make_boot_program (long nargs) |
2fda0242 | 250 | { |
5bd047ce | 251 | SCM u8vec; |
97fcf583 AW |
252 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 0, 1, |
253 | scm_op_make_int8_1, scm_op_halt }; | |
28b119ee | 254 | struct scm_objcode *bp; |
3b9e095b | 255 | SCM ret; |
5bd047ce | 256 | |
53e28ed9 | 257 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 258 | abort (); |
28b119ee AW |
259 | text[1] = (scm_t_uint8)nargs; |
260 | ||
d7e7a02a | 261 | bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text)); |
3dbbe28d | 262 | memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text)); |
28b119ee AW |
263 | bp->len = sizeof(text); |
264 | bp->metalen = 0; | |
28b119ee | 265 | |
7055591c AW |
266 | u8vec = scm_c_take_bytevector ((scm_t_int8*)bp, |
267 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 268 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 269 | SCM_BOOL_F, SCM_BOOL_F); |
ba20f78a | 270 | SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 271 | |
3b9e095b | 272 | return ret; |
2fda0242 | 273 | } |
d2d7acd5 AW |
274 | #define NUM_BOOT_PROGS 8 |
275 | static SCM | |
276 | vm_make_boot_program (long nargs) | |
277 | { | |
278 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
279 | ||
280 | if (SCM_UNLIKELY (!programs[0])) | |
281 | { | |
282 | int i; | |
283 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
f39448c5 | 284 | programs[i] = really_make_boot_program (i); |
d2d7acd5 AW |
285 | } |
286 | ||
287 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
288 | return programs[nargs]; | |
289 | else | |
290 | return really_make_boot_program (nargs); | |
291 | } | |
2fda0242 | 292 | |
a98cef7e KN |
293 | \f |
294 | /* | |
295 | * VM | |
296 | */ | |
297 | ||
b7393ea1 AW |
298 | static SCM |
299 | resolve_variable (SCM what, SCM program_module) | |
300 | { | |
9bd48cb1 | 301 | if (SCM_LIKELY (scm_is_symbol (what))) |
b7393ea1 AW |
302 | { |
303 | if (SCM_LIKELY (scm_module_system_booted_p | |
304 | && scm_is_true (program_module))) | |
305 | /* might longjmp */ | |
306 | return scm_module_lookup (program_module, what); | |
307 | else | |
308 | { | |
309 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
310 | if (scm_is_false (v)) | |
311 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
312 | else | |
313 | return v; | |
314 | } | |
315 | } | |
316 | else | |
317 | { | |
318 | SCM mod; | |
319 | /* compilation of @ or @@ | |
320 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
321 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
322 | */ | |
323 | mod = scm_resolve_module (SCM_CAR (what)); | |
324 | if (scm_is_true (SCM_CADDR (what))) | |
325 | mod = scm_module_public_interface (mod); | |
5c8cefe5 | 326 | if (scm_is_false (mod)) |
b7393ea1 AW |
327 | scm_misc_error (NULL, "no such module: ~S", |
328 | scm_list_1 (SCM_CAR (what))); | |
329 | /* might longjmp */ | |
330 | return scm_module_lookup (mod, SCM_CADR (what)); | |
331 | } | |
332 | } | |
333 | ||
51e9ba2f | 334 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 335 | |
17e90c5e | 336 | #define VM_NAME vm_regular_engine |
6d14383e AW |
337 | #define FUNC_NAME "vm-regular-engine" |
338 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 339 | #include "vm-engine.c" |
17e90c5e | 340 | #undef VM_NAME |
6d14383e | 341 | #undef FUNC_NAME |
17e90c5e | 342 | #undef VM_ENGINE |
17e90c5e KN |
343 | |
344 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
345 | #define FUNC_NAME "vm-debug-engine" |
346 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 347 | #include "vm-engine.c" |
17e90c5e | 348 | #undef VM_NAME |
6d14383e | 349 | #undef FUNC_NAME |
17e90c5e KN |
350 | #undef VM_ENGINE |
351 | ||
6d14383e AW |
352 | static const scm_t_vm_engine vm_engines[] = |
353 | { vm_regular_engine, vm_debug_engine }; | |
354 | ||
e3eb628d LC |
355 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
356 | ||
357 | /* The GC "kind" for the VM stack. */ | |
358 | static int vm_stack_gc_kind; | |
359 | ||
360 | #endif | |
361 | ||
a98cef7e | 362 | static SCM |
17e90c5e KN |
363 | make_vm (void) |
364 | #define FUNC_NAME "make_vm" | |
a98cef7e | 365 | { |
17e90c5e | 366 | int i; |
7f991c7d | 367 | struct scm_vm *vp; |
747a1635 | 368 | |
7f991c7d | 369 | vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
d8eeb67c | 370 | |
3d5ee0cd | 371 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
e3eb628d LC |
372 | |
373 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
4168aa46 TTN |
374 | vp->stack_base = (SCM *) |
375 | GC_generic_malloc (vp->stack_size * sizeof (SCM), vm_stack_gc_kind); | |
e3eb628d LC |
376 | |
377 | /* Keep a pointer to VP so that `vm_stack_mark ()' can know what the stack | |
378 | top is. */ | |
379 | *vp->stack_base = PTR2SCM (vp); | |
380 | vp->stack_base++; | |
381 | vp->stack_size--; | |
382 | #else | |
d8eeb67c LC |
383 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
384 | "stack-base"); | |
e3eb628d LC |
385 | #endif |
386 | ||
2bbe1533 AW |
387 | #ifdef VM_ENABLE_STACK_NULLING |
388 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
389 | #endif | |
75d315e1 | 390 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
391 | vp->ip = NULL; |
392 | vp->sp = vp->stack_base - 1; | |
393 | vp->fp = NULL; | |
6d14383e | 394 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd | 395 | vp->options = SCM_EOL; |
7656f194 | 396 | vp->trace_level = 0; |
17e90c5e | 397 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 398 | vp->hooks[i] = SCM_BOOL_F; |
2d026f04 | 399 | vp->cookie = 0; |
6f3b0cc2 | 400 | return scm_cell (scm_tc7_vm, (scm_t_bits)vp); |
a98cef7e | 401 | } |
17e90c5e | 402 | #undef FUNC_NAME |
a98cef7e | 403 | |
e3eb628d LC |
404 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
405 | ||
406 | /* Mark the VM stack region between its base and its current top. */ | |
407 | static struct GC_ms_entry * | |
408 | vm_stack_mark (GC_word *addr, struct GC_ms_entry *mark_stack_ptr, | |
409 | struct GC_ms_entry *mark_stack_limit, GC_word env) | |
410 | { | |
411 | GC_word *word; | |
412 | const struct scm_vm *vm; | |
413 | ||
414 | /* The first word of the VM stack should contain a pointer to the | |
415 | corresponding VM. */ | |
416 | vm = * ((struct scm_vm **) addr); | |
417 | ||
8071c490 LC |
418 | if (vm == NULL |
419 | || (SCM *) addr != vm->stack_base - 1 | |
78747ac6 | 420 | || vm->stack_limit - vm->stack_base != vm->stack_size) |
e3eb628d LC |
421 | /* ADDR must be a pointer to a free-list element, which we must ignore |
422 | (see warning in <gc/gc_mark.h>). */ | |
423 | return mark_stack_ptr; | |
424 | ||
e3eb628d LC |
425 | for (word = (GC_word *) vm->stack_base; word <= (GC_word *) vm->sp; word++) |
426 | mark_stack_ptr = GC_MARK_AND_PUSH ((* (GC_word **) word), | |
427 | mark_stack_ptr, mark_stack_limit, | |
428 | NULL); | |
429 | ||
430 | return mark_stack_ptr; | |
431 | } | |
432 | ||
433 | #endif /* VM_ENABLE_PRECISE_STACK_GC_SCAN */ | |
434 | ||
435 | ||
6d14383e | 436 | SCM |
4abef68f | 437 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 438 | { |
4abef68f | 439 | struct scm_vm *vp = SCM_VM_DATA (vm); |
7656f194 | 440 | return vm_engines[vp->engine](vm, program, argv, nargs); |
6d14383e AW |
441 | } |
442 | ||
6f3b0cc2 AW |
443 | SCM_DEFINE (scm_vm_apply, "vm-apply", 3, 0, 0, |
444 | (SCM vm, SCM program, SCM args), | |
445 | "") | |
446 | #define FUNC_NAME s_scm_vm_apply | |
a98cef7e | 447 | { |
6d14383e AW |
448 | SCM *argv; |
449 | int i, nargs; | |
450 | ||
451 | SCM_VALIDATE_VM (1, vm); | |
67e2d80a | 452 | SCM_VALIDATE_PROC (2, program); |
6d14383e AW |
453 | |
454 | nargs = scm_ilength (args); | |
455 | if (SCM_UNLIKELY (nargs < 0)) | |
456 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
457 | ||
458 | argv = alloca(nargs * sizeof(SCM)); | |
459 | for (i = 0; i < nargs; i++) | |
460 | { | |
461 | argv[i] = SCM_CAR (args); | |
462 | args = SCM_CDR (args); | |
463 | } | |
464 | ||
4abef68f | 465 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 466 | } |
17e90c5e | 467 | #undef FUNC_NAME |
a98cef7e | 468 | |
14aa25e4 AW |
469 | SCM |
470 | scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id) | |
471 | { | |
472 | return scm_c_vm_run (vm, thunk, NULL, 0); | |
473 | } | |
474 | ||
a98cef7e KN |
475 | /* Scheme interface */ |
476 | ||
477 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
478 | (void), |
479 | "") | |
a98cef7e KN |
480 | #define FUNC_NAME s_scm_vm_version |
481 | { | |
d3518113 | 482 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
483 | } |
484 | #undef FUNC_NAME | |
485 | ||
499a4c07 | 486 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 487 | (void), |
499a4c07 KN |
488 | "") |
489 | #define FUNC_NAME s_scm_the_vm | |
490 | { | |
2bbe1533 | 491 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 492 | |
8b22ed7a | 493 | if (SCM_UNLIKELY (scm_is_false ((t->vm)))) |
2bbe1533 | 494 | t->vm = make_vm (); |
f63ea2ce | 495 | |
2bbe1533 | 496 | return t->vm; |
499a4c07 KN |
497 | } |
498 | #undef FUNC_NAME | |
499 | ||
500 | ||
a98cef7e KN |
501 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
502 | (SCM obj), | |
17e90c5e | 503 | "") |
a98cef7e KN |
504 | #define FUNC_NAME s_scm_vm_p |
505 | { | |
9bd48cb1 | 506 | return scm_from_bool (SCM_VM_P (obj)); |
a98cef7e KN |
507 | } |
508 | #undef FUNC_NAME | |
509 | ||
510 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
511 | (void), |
512 | "") | |
513 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 514 | { |
17e90c5e | 515 | return make_vm (); |
a98cef7e KN |
516 | } |
517 | #undef FUNC_NAME | |
518 | ||
17e90c5e | 519 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 520 | (SCM vm), |
17e90c5e KN |
521 | "") |
522 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
523 | { |
524 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 525 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
526 | } |
527 | #undef FUNC_NAME | |
528 | ||
529 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
530 | (SCM vm), | |
17e90c5e | 531 | "") |
a98cef7e KN |
532 | #define FUNC_NAME s_scm_vm_sp |
533 | { | |
534 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 535 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
536 | } |
537 | #undef FUNC_NAME | |
538 | ||
539 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
540 | (SCM vm), | |
17e90c5e | 541 | "") |
a98cef7e KN |
542 | #define FUNC_NAME s_scm_vm_fp |
543 | { | |
544 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 545 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
546 | } |
547 | #undef FUNC_NAME | |
548 | ||
17e90c5e KN |
549 | #define VM_DEFINE_HOOK(n) \ |
550 | { \ | |
3d5ee0cd | 551 | struct scm_vm *vp; \ |
17e90c5e | 552 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd | 553 | vp = SCM_VM_DATA (vm); \ |
8b22ed7a | 554 | if (scm_is_false (vp->hooks[n])) \ |
238e7a11 | 555 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 556 | return vp->hooks[n]; \ |
17e90c5e KN |
557 | } |
558 | ||
559 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 560 | (SCM vm), |
17e90c5e KN |
561 | "") |
562 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 563 | { |
17e90c5e | 564 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
565 | } |
566 | #undef FUNC_NAME | |
567 | ||
17e90c5e KN |
568 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
569 | (SCM vm), | |
570 | "") | |
571 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 572 | { |
17e90c5e | 573 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
574 | } |
575 | #undef FUNC_NAME | |
576 | ||
17e90c5e | 577 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 578 | (SCM vm), |
17e90c5e KN |
579 | "") |
580 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 581 | { |
17e90c5e | 582 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
583 | } |
584 | #undef FUNC_NAME | |
585 | ||
7a0d0cee KN |
586 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
587 | (SCM vm), | |
588 | "") | |
589 | #define FUNC_NAME s_scm_vm_break_hook | |
590 | { | |
591 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
592 | } | |
593 | #undef FUNC_NAME | |
594 | ||
17e90c5e KN |
595 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
596 | (SCM vm), | |
597 | "") | |
598 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 599 | { |
17e90c5e | 600 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
601 | } |
602 | #undef FUNC_NAME | |
603 | ||
17e90c5e KN |
604 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
605 | (SCM vm), | |
606 | "") | |
607 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 608 | { |
17e90c5e | 609 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
610 | } |
611 | #undef FUNC_NAME | |
612 | ||
17e90c5e | 613 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 614 | (SCM vm), |
17e90c5e KN |
615 | "") |
616 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 617 | { |
17e90c5e | 618 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
619 | } |
620 | #undef FUNC_NAME | |
621 | ||
17e90c5e | 622 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 623 | (SCM vm), |
17e90c5e KN |
624 | "") |
625 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 626 | { |
17e90c5e | 627 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
628 | } |
629 | #undef FUNC_NAME | |
630 | ||
17e90c5e KN |
631 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
632 | (SCM vm, SCM key), | |
633 | "") | |
634 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
635 | { |
636 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 637 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
638 | } |
639 | #undef FUNC_NAME | |
640 | ||
17e90c5e KN |
641 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
642 | (SCM vm, SCM key, SCM val), | |
643 | "") | |
644 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
645 | { |
646 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
647 | SCM_VM_DATA (vm)->options |
648 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
649 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
650 | } |
651 | #undef FUNC_NAME | |
652 | ||
7656f194 | 653 | SCM_DEFINE (scm_vm_trace_level, "vm-trace-level", 1, 0, 0, |
17e90c5e KN |
654 | (SCM vm), |
655 | "") | |
7656f194 | 656 | #define FUNC_NAME s_scm_vm_trace_level |
a98cef7e | 657 | { |
a98cef7e | 658 | SCM_VALIDATE_VM (1, vm); |
7656f194 AW |
659 | return scm_from_int (SCM_VM_DATA (vm)->trace_level); |
660 | } | |
661 | #undef FUNC_NAME | |
662 | ||
663 | SCM_DEFINE (scm_set_vm_trace_level_x, "set-vm-trace-level!", 2, 0, 0, | |
664 | (SCM vm, SCM level), | |
665 | "") | |
666 | #define FUNC_NAME s_scm_set_vm_trace_level_x | |
667 | { | |
668 | SCM_VALIDATE_VM (1, vm); | |
669 | SCM_VM_DATA (vm)->trace_level = scm_to_int (level); | |
670 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
671 | } |
672 | #undef FUNC_NAME | |
673 | ||
674 | \f | |
675 | /* | |
17e90c5e | 676 | * Initialize |
a98cef7e KN |
677 | */ |
678 | ||
07e56b27 AW |
679 | SCM scm_load_compiled_with_vm (SCM file) |
680 | { | |
53e28ed9 | 681 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 682 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 683 | |
4abef68f | 684 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
685 | } |
686 | ||
17e90c5e | 687 | void |
07e56b27 | 688 | scm_bootstrap_vm (void) |
17e90c5e | 689 | { |
60ae5ca2 AW |
690 | scm_c_register_extension ("libguile", "scm_init_vm", |
691 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
692 | ||
e3eb628d LC |
693 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
694 | vm_stack_gc_kind = | |
695 | GC_new_kind (GC_new_free_list (), | |
696 | GC_MAKE_PROC (GC_new_proc (vm_stack_mark), 0), | |
697 | 0, 1); | |
698 | ||
699 | #endif | |
07e56b27 AW |
700 | } |
701 | ||
702 | void | |
703 | scm_init_vm (void) | |
704 | { | |
17e90c5e | 705 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 706 | #include "libguile/vm.x" |
17e90c5e | 707 | #endif |
a98cef7e | 708 | } |
17e90c5e KN |
709 | |
710 | /* | |
711 | Local Variables: | |
712 | c-file-style: "gnu" | |
713 | End: | |
714 | */ |