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 | ||
17e90c5e | 204 | \f |
4f66bcde AW |
205 | /* |
206 | * The dynamic stack | |
207 | */ | |
4f66bcde AW |
208 | #define VM_SETJMP(jmpbuf) 0 |
209 | ||
6e84cb95 | 210 | static void vm_abort (SCM vm, SCM tag, SCM args) SCM_NORETURN; |
4f66bcde | 211 | static void |
6e84cb95 | 212 | vm_abort (SCM vm, SCM tag, SCM args) |
4f66bcde AW |
213 | { |
214 | abort (); | |
215 | } | |
216 | ||
217 | \f | |
17e90c5e KN |
218 | /* |
219 | * VM Internal functions | |
220 | */ | |
221 | ||
f6a8e791 AW |
222 | SCM_SYMBOL (sym_vm_run, "vm-run"); |
223 | SCM_SYMBOL (sym_vm_error, "vm-error"); | |
224 | SCM_SYMBOL (sym_keyword_argument_error, "keyword-argument-error"); | |
225 | SCM_SYMBOL (sym_debug, "debug"); | |
17e90c5e | 226 | |
6f3b0cc2 AW |
227 | void |
228 | scm_i_vm_print (SCM x, SCM port, scm_print_state *pstate) | |
229 | { | |
230 | scm_puts ("#<vm ", port); | |
231 | scm_uintprint (SCM_UNPACK (x), 16, port); | |
232 | scm_puts (">", port); | |
233 | } | |
234 | ||
2fda0242 | 235 | static SCM |
d2d7acd5 | 236 | really_make_boot_program (long nargs) |
2fda0242 | 237 | { |
5bd047ce | 238 | SCM u8vec; |
97fcf583 AW |
239 | scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 0, 1, |
240 | scm_op_make_int8_1, scm_op_halt }; | |
28b119ee | 241 | struct scm_objcode *bp; |
3b9e095b | 242 | SCM ret; |
5bd047ce | 243 | |
53e28ed9 | 244 | if (SCM_UNLIKELY (nargs > 255 || nargs < 0)) |
2fda0242 | 245 | abort (); |
28b119ee AW |
246 | text[1] = (scm_t_uint8)nargs; |
247 | ||
d7e7a02a | 248 | bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text)); |
3dbbe28d | 249 | memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text)); |
28b119ee AW |
250 | bp->len = sizeof(text); |
251 | bp->metalen = 0; | |
28b119ee | 252 | |
7055591c AW |
253 | u8vec = scm_c_take_bytevector ((scm_t_int8*)bp, |
254 | sizeof (struct scm_objcode) + sizeof (text)); | |
5bd047ce | 255 | ret = scm_make_program (scm_bytecode_to_objcode (u8vec), |
20d47c39 | 256 | SCM_BOOL_F, SCM_BOOL_F); |
ba20f78a | 257 | SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT); |
5bd047ce | 258 | |
3b9e095b | 259 | return ret; |
2fda0242 | 260 | } |
d2d7acd5 AW |
261 | #define NUM_BOOT_PROGS 8 |
262 | static SCM | |
263 | vm_make_boot_program (long nargs) | |
264 | { | |
265 | static SCM programs[NUM_BOOT_PROGS] = { 0, }; | |
266 | ||
267 | if (SCM_UNLIKELY (!programs[0])) | |
268 | { | |
269 | int i; | |
270 | for (i = 0; i < NUM_BOOT_PROGS; i++) | |
f39448c5 | 271 | programs[i] = really_make_boot_program (i); |
d2d7acd5 AW |
272 | } |
273 | ||
274 | if (SCM_LIKELY (nargs < NUM_BOOT_PROGS)) | |
275 | return programs[nargs]; | |
276 | else | |
277 | return really_make_boot_program (nargs); | |
278 | } | |
2fda0242 | 279 | |
a98cef7e KN |
280 | \f |
281 | /* | |
282 | * VM | |
283 | */ | |
284 | ||
b7393ea1 AW |
285 | static SCM |
286 | resolve_variable (SCM what, SCM program_module) | |
287 | { | |
9bd48cb1 | 288 | if (SCM_LIKELY (scm_is_symbol (what))) |
b7393ea1 AW |
289 | { |
290 | if (SCM_LIKELY (scm_module_system_booted_p | |
291 | && scm_is_true (program_module))) | |
292 | /* might longjmp */ | |
293 | return scm_module_lookup (program_module, what); | |
294 | else | |
295 | { | |
296 | SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F); | |
297 | if (scm_is_false (v)) | |
298 | scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what)); | |
299 | else | |
300 | return v; | |
301 | } | |
302 | } | |
303 | else | |
304 | { | |
305 | SCM mod; | |
306 | /* compilation of @ or @@ | |
307 | `what' is a three-element list: (MODNAME SYM INTERFACE?) | |
308 | INTERFACE? is #t if we compiled @ or #f if we compiled @@ | |
309 | */ | |
310 | mod = scm_resolve_module (SCM_CAR (what)); | |
311 | if (scm_is_true (SCM_CADDR (what))) | |
312 | mod = scm_module_public_interface (mod); | |
5c8cefe5 | 313 | if (scm_is_false (mod)) |
b7393ea1 AW |
314 | scm_misc_error (NULL, "no such module: ~S", |
315 | scm_list_1 (SCM_CAR (what))); | |
316 | /* might longjmp */ | |
317 | return scm_module_lookup (mod, SCM_CADR (what)); | |
318 | } | |
319 | } | |
320 | ||
51e9ba2f | 321 | #define VM_DEFAULT_STACK_SIZE (64 * 1024) |
17e90c5e | 322 | |
17e90c5e | 323 | #define VM_NAME vm_regular_engine |
6d14383e AW |
324 | #define FUNC_NAME "vm-regular-engine" |
325 | #define VM_ENGINE SCM_VM_REGULAR_ENGINE | |
83495480 | 326 | #include "vm-engine.c" |
17e90c5e | 327 | #undef VM_NAME |
6d14383e | 328 | #undef FUNC_NAME |
17e90c5e | 329 | #undef VM_ENGINE |
17e90c5e KN |
330 | |
331 | #define VM_NAME vm_debug_engine | |
6d14383e AW |
332 | #define FUNC_NAME "vm-debug-engine" |
333 | #define VM_ENGINE SCM_VM_DEBUG_ENGINE | |
83495480 | 334 | #include "vm-engine.c" |
17e90c5e | 335 | #undef VM_NAME |
6d14383e | 336 | #undef FUNC_NAME |
17e90c5e KN |
337 | #undef VM_ENGINE |
338 | ||
6d14383e AW |
339 | static const scm_t_vm_engine vm_engines[] = |
340 | { vm_regular_engine, vm_debug_engine }; | |
341 | ||
e3eb628d LC |
342 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
343 | ||
344 | /* The GC "kind" for the VM stack. */ | |
345 | static int vm_stack_gc_kind; | |
346 | ||
347 | #endif | |
348 | ||
a98cef7e | 349 | static SCM |
17e90c5e KN |
350 | make_vm (void) |
351 | #define FUNC_NAME "make_vm" | |
a98cef7e | 352 | { |
17e90c5e | 353 | int i; |
7f991c7d | 354 | struct scm_vm *vp; |
747a1635 | 355 | |
7f991c7d | 356 | vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
d8eeb67c | 357 | |
3d5ee0cd | 358 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
e3eb628d LC |
359 | |
360 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN | |
4168aa46 TTN |
361 | vp->stack_base = (SCM *) |
362 | GC_generic_malloc (vp->stack_size * sizeof (SCM), vm_stack_gc_kind); | |
e3eb628d LC |
363 | |
364 | /* Keep a pointer to VP so that `vm_stack_mark ()' can know what the stack | |
365 | top is. */ | |
366 | *vp->stack_base = PTR2SCM (vp); | |
367 | vp->stack_base++; | |
368 | vp->stack_size--; | |
369 | #else | |
d8eeb67c LC |
370 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
371 | "stack-base"); | |
e3eb628d LC |
372 | #endif |
373 | ||
2bbe1533 AW |
374 | #ifdef VM_ENABLE_STACK_NULLING |
375 | memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM)); | |
376 | #endif | |
75d315e1 | 377 | vp->stack_limit = vp->stack_base + vp->stack_size; |
3616e9e9 KN |
378 | vp->ip = NULL; |
379 | vp->sp = vp->stack_base - 1; | |
380 | vp->fp = NULL; | |
6d14383e | 381 | vp->engine = SCM_VM_DEBUG_ENGINE; |
3d5ee0cd | 382 | vp->options = SCM_EOL; |
7656f194 | 383 | vp->trace_level = 0; |
17e90c5e | 384 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 385 | vp->hooks[i] = SCM_BOOL_F; |
6f3b0cc2 | 386 | return scm_cell (scm_tc7_vm, (scm_t_bits)vp); |
a98cef7e | 387 | } |
17e90c5e | 388 | #undef FUNC_NAME |
a98cef7e | 389 | |
e3eb628d LC |
390 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
391 | ||
392 | /* Mark the VM stack region between its base and its current top. */ | |
393 | static struct GC_ms_entry * | |
394 | vm_stack_mark (GC_word *addr, struct GC_ms_entry *mark_stack_ptr, | |
395 | struct GC_ms_entry *mark_stack_limit, GC_word env) | |
396 | { | |
397 | GC_word *word; | |
398 | const struct scm_vm *vm; | |
399 | ||
400 | /* The first word of the VM stack should contain a pointer to the | |
401 | corresponding VM. */ | |
402 | vm = * ((struct scm_vm **) addr); | |
403 | ||
8071c490 LC |
404 | if (vm == NULL |
405 | || (SCM *) addr != vm->stack_base - 1 | |
78747ac6 | 406 | || vm->stack_limit - vm->stack_base != vm->stack_size) |
e3eb628d LC |
407 | /* ADDR must be a pointer to a free-list element, which we must ignore |
408 | (see warning in <gc/gc_mark.h>). */ | |
409 | return mark_stack_ptr; | |
410 | ||
e3eb628d LC |
411 | for (word = (GC_word *) vm->stack_base; word <= (GC_word *) vm->sp; word++) |
412 | mark_stack_ptr = GC_MARK_AND_PUSH ((* (GC_word **) word), | |
413 | mark_stack_ptr, mark_stack_limit, | |
414 | NULL); | |
415 | ||
416 | return mark_stack_ptr; | |
417 | } | |
418 | ||
419 | #endif /* VM_ENABLE_PRECISE_STACK_GC_SCAN */ | |
420 | ||
421 | ||
6d14383e | 422 | SCM |
4abef68f | 423 | scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) |
6d14383e | 424 | { |
4abef68f | 425 | struct scm_vm *vp = SCM_VM_DATA (vm); |
7656f194 | 426 | return vm_engines[vp->engine](vm, program, argv, nargs); |
6d14383e AW |
427 | } |
428 | ||
6f3b0cc2 AW |
429 | SCM_DEFINE (scm_vm_apply, "vm-apply", 3, 0, 0, |
430 | (SCM vm, SCM program, SCM args), | |
431 | "") | |
432 | #define FUNC_NAME s_scm_vm_apply | |
a98cef7e | 433 | { |
6d14383e AW |
434 | SCM *argv; |
435 | int i, nargs; | |
436 | ||
437 | SCM_VALIDATE_VM (1, vm); | |
67e2d80a | 438 | SCM_VALIDATE_PROC (2, program); |
6d14383e AW |
439 | |
440 | nargs = scm_ilength (args); | |
441 | if (SCM_UNLIKELY (nargs < 0)) | |
442 | scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list"); | |
443 | ||
444 | argv = alloca(nargs * sizeof(SCM)); | |
445 | for (i = 0; i < nargs; i++) | |
446 | { | |
447 | argv[i] = SCM_CAR (args); | |
448 | args = SCM_CDR (args); | |
449 | } | |
450 | ||
4abef68f | 451 | return scm_c_vm_run (vm, program, argv, nargs); |
a98cef7e | 452 | } |
17e90c5e | 453 | #undef FUNC_NAME |
a98cef7e | 454 | |
14aa25e4 AW |
455 | SCM |
456 | scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id) | |
457 | { | |
458 | return scm_c_vm_run (vm, thunk, NULL, 0); | |
459 | } | |
460 | ||
a98cef7e KN |
461 | /* Scheme interface */ |
462 | ||
463 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
464 | (void), |
465 | "") | |
a98cef7e KN |
466 | #define FUNC_NAME s_scm_vm_version |
467 | { | |
d3518113 | 468 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
469 | } |
470 | #undef FUNC_NAME | |
471 | ||
499a4c07 | 472 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 473 | (void), |
499a4c07 KN |
474 | "") |
475 | #define FUNC_NAME s_scm_the_vm | |
476 | { | |
2bbe1533 | 477 | scm_i_thread *t = SCM_I_CURRENT_THREAD; |
f63ea2ce | 478 | |
8b22ed7a | 479 | if (SCM_UNLIKELY (scm_is_false ((t->vm)))) |
2bbe1533 | 480 | t->vm = make_vm (); |
f63ea2ce | 481 | |
2bbe1533 | 482 | return t->vm; |
499a4c07 KN |
483 | } |
484 | #undef FUNC_NAME | |
485 | ||
486 | ||
a98cef7e KN |
487 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
488 | (SCM obj), | |
17e90c5e | 489 | "") |
a98cef7e KN |
490 | #define FUNC_NAME s_scm_vm_p |
491 | { | |
9bd48cb1 | 492 | return scm_from_bool (SCM_VM_P (obj)); |
a98cef7e KN |
493 | } |
494 | #undef FUNC_NAME | |
495 | ||
496 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
497 | (void), |
498 | "") | |
499 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 500 | { |
17e90c5e | 501 | return make_vm (); |
a98cef7e KN |
502 | } |
503 | #undef FUNC_NAME | |
504 | ||
17e90c5e | 505 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 506 | (SCM vm), |
17e90c5e KN |
507 | "") |
508 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
509 | { |
510 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 511 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
512 | } |
513 | #undef FUNC_NAME | |
514 | ||
515 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
516 | (SCM vm), | |
17e90c5e | 517 | "") |
a98cef7e KN |
518 | #define FUNC_NAME s_scm_vm_sp |
519 | { | |
520 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 521 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
522 | } |
523 | #undef FUNC_NAME | |
524 | ||
525 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
526 | (SCM vm), | |
17e90c5e | 527 | "") |
a98cef7e KN |
528 | #define FUNC_NAME s_scm_vm_fp |
529 | { | |
530 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 531 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
532 | } |
533 | #undef FUNC_NAME | |
534 | ||
17e90c5e KN |
535 | #define VM_DEFINE_HOOK(n) \ |
536 | { \ | |
3d5ee0cd | 537 | struct scm_vm *vp; \ |
17e90c5e | 538 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd | 539 | vp = SCM_VM_DATA (vm); \ |
8b22ed7a | 540 | if (scm_is_false (vp->hooks[n])) \ |
238e7a11 | 541 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 542 | return vp->hooks[n]; \ |
17e90c5e KN |
543 | } |
544 | ||
545 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 546 | (SCM vm), |
17e90c5e KN |
547 | "") |
548 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 549 | { |
17e90c5e | 550 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
551 | } |
552 | #undef FUNC_NAME | |
553 | ||
17e90c5e KN |
554 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
555 | (SCM vm), | |
556 | "") | |
557 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 558 | { |
17e90c5e | 559 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
560 | } |
561 | #undef FUNC_NAME | |
562 | ||
17e90c5e | 563 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 564 | (SCM vm), |
17e90c5e KN |
565 | "") |
566 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 567 | { |
17e90c5e | 568 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
569 | } |
570 | #undef FUNC_NAME | |
571 | ||
7a0d0cee KN |
572 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
573 | (SCM vm), | |
574 | "") | |
575 | #define FUNC_NAME s_scm_vm_break_hook | |
576 | { | |
577 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
578 | } | |
579 | #undef FUNC_NAME | |
580 | ||
17e90c5e KN |
581 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
582 | (SCM vm), | |
583 | "") | |
584 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 585 | { |
17e90c5e | 586 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
587 | } |
588 | #undef FUNC_NAME | |
589 | ||
17e90c5e KN |
590 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
591 | (SCM vm), | |
592 | "") | |
593 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 594 | { |
17e90c5e | 595 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
596 | } |
597 | #undef FUNC_NAME | |
598 | ||
17e90c5e | 599 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 600 | (SCM vm), |
17e90c5e KN |
601 | "") |
602 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 603 | { |
17e90c5e | 604 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
605 | } |
606 | #undef FUNC_NAME | |
607 | ||
17e90c5e | 608 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 609 | (SCM vm), |
17e90c5e KN |
610 | "") |
611 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 612 | { |
17e90c5e | 613 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
614 | } |
615 | #undef FUNC_NAME | |
616 | ||
17e90c5e KN |
617 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
618 | (SCM vm, SCM key), | |
619 | "") | |
620 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
621 | { |
622 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 623 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
624 | } |
625 | #undef FUNC_NAME | |
626 | ||
17e90c5e KN |
627 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
628 | (SCM vm, SCM key, SCM val), | |
629 | "") | |
630 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
631 | { |
632 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
633 | SCM_VM_DATA (vm)->options |
634 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
635 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
636 | } |
637 | #undef FUNC_NAME | |
638 | ||
7656f194 | 639 | SCM_DEFINE (scm_vm_trace_level, "vm-trace-level", 1, 0, 0, |
17e90c5e KN |
640 | (SCM vm), |
641 | "") | |
7656f194 | 642 | #define FUNC_NAME s_scm_vm_trace_level |
a98cef7e | 643 | { |
a98cef7e | 644 | SCM_VALIDATE_VM (1, vm); |
7656f194 AW |
645 | return scm_from_int (SCM_VM_DATA (vm)->trace_level); |
646 | } | |
647 | #undef FUNC_NAME | |
648 | ||
649 | SCM_DEFINE (scm_set_vm_trace_level_x, "set-vm-trace-level!", 2, 0, 0, | |
650 | (SCM vm, SCM level), | |
651 | "") | |
652 | #define FUNC_NAME s_scm_set_vm_trace_level_x | |
653 | { | |
654 | SCM_VALIDATE_VM (1, vm); | |
655 | SCM_VM_DATA (vm)->trace_level = scm_to_int (level); | |
656 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
657 | } |
658 | #undef FUNC_NAME | |
659 | ||
660 | \f | |
661 | /* | |
17e90c5e | 662 | * Initialize |
a98cef7e KN |
663 | */ |
664 | ||
07e56b27 AW |
665 | SCM scm_load_compiled_with_vm (SCM file) |
666 | { | |
53e28ed9 | 667 | SCM program = scm_make_program (scm_load_objcode (file), |
20d47c39 | 668 | SCM_BOOL_F, SCM_BOOL_F); |
07e56b27 | 669 | |
4abef68f | 670 | return scm_c_vm_run (scm_the_vm (), program, NULL, 0); |
07e56b27 AW |
671 | } |
672 | ||
17e90c5e | 673 | void |
07e56b27 | 674 | scm_bootstrap_vm (void) |
17e90c5e | 675 | { |
60ae5ca2 AW |
676 | scm_c_register_extension ("libguile", "scm_init_vm", |
677 | (scm_t_extension_init_func)scm_init_vm, NULL); | |
678 | ||
e3eb628d LC |
679 | #ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN |
680 | vm_stack_gc_kind = | |
681 | GC_new_kind (GC_new_free_list (), | |
682 | GC_MAKE_PROC (GC_new_proc (vm_stack_mark), 0), | |
683 | 0, 1); | |
684 | ||
685 | #endif | |
07e56b27 AW |
686 | } |
687 | ||
688 | void | |
689 | scm_init_vm (void) | |
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 | */ |