6 // if you change this struct, also change vm.factor k--------
8 zone nursery; /* new objects are allocated here */
12 cell __padding__ ; // align to 8 byte boundary
14 cell userenv[USER_ENV]; /* TAGGED user environment data; see getenv/setenv prims */
16 cell __padding2__; // not sure why we need this, bootstrap doesn't work without it
20 inline cell align_page(cell a);
23 cell ds_size, rs_size;
24 context *unused_contexts;
25 void reset_datastack();
26 void reset_retainstack();
29 context *alloc_context();
30 void dealloc_context(context *old_context);
33 void init_stacks(cell ds_size_, cell rs_size_);
34 bool stack_to_array(cell bottom, cell top);
35 cell array_to_stack(array *array, cell bottom);
36 inline void vmprim_datastack();
37 inline void vmprim_retainstack();
38 inline void vmprim_set_datastack();
39 inline void vmprim_set_retainstack();
40 inline void vmprim_check_datastack();
43 cell T; /* Canonical T object. It's just a word */
44 inline void vmprim_getenv();
45 inline void vmprim_setenv();
46 inline void vmprim_exit();
47 inline void vmprim_micros();
48 inline void vmprim_sleep();
49 inline void vmprim_set_slot();
50 inline void vmprim_load_locals();
51 cell clone_object(cell obj_);
52 inline void vmprim_clone();
57 code_block *compile_profiling_stub(cell word_);
58 void set_profiling(bool profiling);
59 inline void vmprim_profiling();
62 /* Global variables used to pass fault handler state from signal handler to
65 cell signal_fault_addr;
66 unsigned int signal_fpu_status;
67 stack_frame *signal_callstack_top;
69 void critical_error(const char* msg, cell tagged);
70 void throw_error(cell error, stack_frame *callstack_top);
71 void not_implemented_error();
72 bool in_page(cell fault, cell area, cell area_size, int offset);
73 void memory_protection_error(cell addr, stack_frame *native_stack);
74 void signal_error(int signal, stack_frame *native_stack);
75 void divide_by_zero_error();
76 void fp_trap_error(unsigned int fpu_status, stack_frame *signal_callstack_top);
77 inline void vmprim_call_clear();
78 inline void vmprim_unimplemented();
79 void memory_signal_handler_impl();
80 void misc_signal_handler_impl();
81 void fp_signal_handler_impl();
82 void type_error(cell type, cell tagged);
83 void general_error(vm_error_type error, cell arg1, cell arg2, stack_frame *native_stack);
88 int bignum_equal_p(bignum * x, bignum * y);
89 enum bignum_comparison bignum_compare(bignum * x, bignum * y);
90 bignum *bignum_add(bignum * x, bignum * y);
91 bignum *bignum_subtract(bignum * x, bignum * y);
92 bignum *bignum_multiply(bignum * x, bignum * y);
93 void bignum_divide(bignum * numerator, bignum * denominator, bignum * * quotient, bignum * * remainder);
94 bignum *bignum_quotient(bignum * numerator, bignum * denominator);
95 bignum *bignum_remainder(bignum * numerator, bignum * denominator);
96 cell bignum_to_cell(bignum * bignum);
97 fixnum bignum_to_fixnum(bignum * bignum);
98 s64 bignum_to_long_long(bignum * bignum);
99 u64 bignum_to_ulong_long(bignum * bignum);
100 double bignum_to_double(bignum * bignum);
101 bignum *double_to_bignum(double x);
102 int bignum_equal_p_unsigned(bignum * x, bignum * y);
103 enum bignum_comparison bignum_compare_unsigned(bignum * x, bignum * y);
104 bignum *bignum_add_unsigned(bignum * x, bignum * y, int negative_p);
105 bignum *bignum_subtract_unsigned(bignum * x, bignum * y);
106 bignum *bignum_multiply_unsigned(bignum * x, bignum * y, int negative_p);
107 bignum *bignum_multiply_unsigned_small_factor(bignum * x, bignum_digit_type y,int negative_p);
108 void bignum_destructive_add(bignum * bignum, bignum_digit_type n);
109 void bignum_destructive_scale_up(bignum * bignum, bignum_digit_type factor);
110 void bignum_divide_unsigned_large_denominator(bignum * numerator, bignum * denominator,
111 bignum * * quotient, bignum * * remainder, int q_negative_p, int r_negative_p);
112 void bignum_divide_unsigned_normalized(bignum * u, bignum * v, bignum * q);
113 bignum_digit_type bignum_divide_subtract(bignum_digit_type * v_start, bignum_digit_type * v_end,
114 bignum_digit_type guess, bignum_digit_type * u_start);
115 void bignum_divide_unsigned_medium_denominator(bignum * numerator,bignum_digit_type denominator,
116 bignum * * quotient, bignum * * remainder,int q_negative_p, int r_negative_p);
117 void bignum_destructive_normalization(bignum * source, bignum * target, int shift_left);
118 void bignum_destructive_unnormalization(bignum * bignum, int shift_right);
119 bignum_digit_type bignum_digit_divide(bignum_digit_type uh, bignum_digit_type ul,
120 bignum_digit_type v, bignum_digit_type * q) /* return value */;
121 bignum_digit_type bignum_digit_divide_subtract(bignum_digit_type v1, bignum_digit_type v2,
122 bignum_digit_type guess, bignum_digit_type * u);
123 void bignum_divide_unsigned_small_denominator(bignum * numerator, bignum_digit_type denominator,
124 bignum * * quotient, bignum * * remainder,int q_negative_p, int r_negative_p);
125 bignum_digit_type bignum_destructive_scale_down(bignum * bignum, bignum_digit_type denominator);
126 bignum * bignum_remainder_unsigned_small_denominator(bignum * n, bignum_digit_type d, int negative_p);
127 bignum *bignum_digit_to_bignum(bignum_digit_type digit, int negative_p);
128 bignum *allot_bignum(bignum_length_type length, int negative_p);
129 bignum * allot_bignum_zeroed(bignum_length_type length, int negative_p);
130 bignum *bignum_shorten_length(bignum * bignum, bignum_length_type length);
131 bignum *bignum_trim(bignum * bignum);
132 bignum *bignum_new_sign(bignum * x, int negative_p);
133 bignum *bignum_maybe_new_sign(bignum * x, int negative_p);
134 void bignum_destructive_copy(bignum * source, bignum * target);
135 bignum *bignum_bitwise_not(bignum * x);
136 bignum *bignum_arithmetic_shift(bignum * arg1, fixnum n);
137 bignum *bignum_bitwise_and(bignum * arg1, bignum * arg2);
138 bignum *bignum_bitwise_ior(bignum * arg1, bignum * arg2);
139 bignum *bignum_bitwise_xor(bignum * arg1, bignum * arg2);
140 bignum *bignum_magnitude_ash(bignum * arg1, fixnum n);
141 bignum *bignum_pospos_bitwise_op(int op, bignum * arg1, bignum * arg2);
142 bignum *bignum_posneg_bitwise_op(int op, bignum * arg1, bignum * arg2);
143 bignum *bignum_negneg_bitwise_op(int op, bignum * arg1, bignum * arg2);
144 void bignum_negate_magnitude(bignum * arg);
145 bignum *bignum_integer_length(bignum * x);
146 int bignum_logbitp(int shift, bignum * arg);
147 int bignum_unsigned_logbitp(int shift, bignum * bignum);
148 bignum *digit_stream_to_bignum(unsigned int n_digits, unsigned int (*producer)(unsigned int, factorvm *), unsigned int radix, int negative_p);
151 bool secure_gc; /* Set by the -securegc command line argument */
152 bool gc_off; /* GC is off during heap walking */
154 /* A heap walk allows useful things to be done, like finding all
155 references to an object for debugging purposes. */
157 cell init_zone(zone *z, cell size, cell start);
158 void init_card_decks();
159 data_heap *alloc_data_heap(cell gens, cell young_size,cell aging_size,cell tenured_size);
160 data_heap *grow_data_heap(data_heap *data, cell requested_bytes);
161 void dealloc_data_heap(data_heap *data);
162 void clear_cards(cell from, cell to);
163 void clear_decks(cell from, cell to);
164 void clear_allot_markers(cell from, cell to);
165 void reset_generation(cell i);
166 void reset_generations(cell from, cell to);
167 void set_data_heap(data_heap *data_);
168 void init_data_heap(cell gens,cell young_size,cell aging_size,cell tenured_size,bool secure_gc_);
169 cell untagged_object_size(object *pointer);
170 cell unaligned_object_size(object *pointer);
171 inline void vmprim_size();
172 cell binary_payload_start(object *pointer);
173 inline void vmprim_data_room();
176 inline void vmprim_begin_scan();
178 inline void vmprim_next_object();
179 inline void vmprim_end_scan();
180 template<typename T> void each_object(T &functor);
181 cell find_all_words();
182 cell object_size(cell tagged);
186 cell allot_markers_offset;
187 inline card *addr_to_card(cell a);
188 inline cell card_to_addr(card *c);
189 inline cell card_offset(card *c);
190 inline card_deck *addr_to_deck(cell a);
191 inline cell deck_to_addr(card_deck *c);
192 inline card *deck_to_card(card_deck *d);
193 inline card *addr_to_allot_marker(object *a);
194 inline void write_barrier(object *obj);
195 inline void allot_barrier(object *address);
199 /* used during garbage collection only */
202 bool performing_compaction;
205 /* if true, we are collecting aging space for the second time, so if it is still
206 full, we go on to collect tenured */
207 bool collecting_aging_again;
209 /* in case a generation fills up in the middle of a gc, we jump back
210 up to try collecting the next generation. */
213 gc_stats stats[max_gen_count];
217 cell code_heap_scans;
219 /* What generation was being collected when copy_code_heap_roots() was last
220 called? Until the next call to add_code_block(), future
221 collections of younger generations don't have to touch the code
223 cell last_code_heap_scan;
225 /* sometimes we grow the heap */
226 bool growing_data_heap;
227 data_heap *old_data_heap;
230 object *copy_untagged_object_impl(object *pointer, cell size);
231 object *copy_object_impl(object *untagged);
232 bool should_copy_p(object *untagged);
233 object *resolve_forwarding(object *untagged);
234 template <typename T> T *copy_untagged_object(T *untagged);
235 cell copy_object(cell pointer);
236 void copy_handle(cell *handle);
237 void copy_card(card *ptr, cell gen, cell here);
238 void copy_card_deck(card_deck *deck, cell gen, card mask, card unmask);
239 void copy_gen_cards(cell gen);
241 void copy_stack_elements(segment *region, cell top);
242 void copy_registered_locals();
243 void copy_registered_bignums();
245 cell copy_next_from_nursery(cell scan);
246 cell copy_next_from_aging(cell scan);
247 cell copy_next_from_tenured(cell scan);
248 void copy_reachable_objects(cell scan, cell *end);
249 void begin_gc(cell requested_bytes);
250 void end_gc(cell gc_elapsed);
251 void garbage_collection(cell gen,bool growing_data_heap_,cell requested_bytes);
253 inline void vmprim_gc();
254 inline void vmprim_gc_stats();
255 void clear_gc_stats();
256 inline void vmprim_become();
257 void inline_gc(cell *gc_roots_base, cell gc_roots_size);
258 inline bool collecting_accumulation_gen_p();
259 inline object *allot_zone(zone *z, cell a);
260 inline object *allot_object(header header, cell size);
261 template <typename TYPE> TYPE *allot(cell size);
262 inline void check_data_pointer(object *pointer);
263 inline void check_tagged_pointer(cell tagged);
264 inline void vmprim_clear_gc_stats();
267 /* If a runtime function needs to call another function which potentially
268 allocates memory, it must wrap any local variable references to Factor
269 objects in gc_root instances */
270 std::vector<cell> gc_locals;
271 std::vector<cell> gc_bignums;
274 template <typename T> T *allot_array_internal(cell capacity);
275 template <typename T> bool reallot_array_in_place_p(T *array, cell capacity);
276 template <typename TYPE> TYPE *reallot_array(TYPE *array_, cell capacity);
283 void print_chars(string* str);
284 void print_word(word* word, cell nesting);
285 void print_factor_string(string* str);
286 void print_array(array* array, cell nesting);
287 void print_tuple(tuple *tuple, cell nesting);
288 void print_nested_obj(cell obj, fixnum nesting);
289 void print_obj(cell obj);
290 void print_objects(cell *start, cell *end);
291 void print_datastack();
292 void print_retainstack();
293 void print_stack_frame(stack_frame *frame);
294 void print_callstack();
295 void dump_cell(cell x);
296 void dump_memory(cell from, cell to);
297 void dump_zone(zone *z);
298 void dump_generations();
299 void dump_objects(cell type);
300 void find_data_references_step(cell *scan);
301 void find_data_references(cell look_for_);
302 void dump_code_heap();
304 inline void vmprim_die();
307 array *allot_array(cell capacity, cell fill_);
308 inline void vmprim_array();
309 cell allot_array_1(cell obj_);
310 cell allot_array_2(cell v1_, cell v2_);
311 cell allot_array_4(cell v1_, cell v2_, cell v3_, cell v4_);
312 inline void vmprim_resize_array();
313 inline void set_array_nth(array *array, cell slot, cell value);
316 cell string_nth(string* str, cell index);
317 void set_string_nth_fast(string *str, cell index, cell ch);
318 void set_string_nth_slow(string *str_, cell index, cell ch);
319 void set_string_nth(string *str, cell index, cell ch);
320 string *allot_string_internal(cell capacity);
321 void fill_string(string *str_, cell start, cell capacity, cell fill);
322 string *allot_string(cell capacity, cell fill);
323 inline void vmprim_string();
324 bool reallot_string_in_place_p(string *str, cell capacity);
325 string* reallot_string(string *str_, cell capacity);
326 inline void vmprim_resize_string();
327 inline void vmprim_string_nth();
328 inline void vmprim_set_string_nth_fast();
329 inline void vmprim_set_string_nth_slow();
332 void box_boolean(bool value);
333 bool to_boolean(cell value);
334 inline cell tag_boolean(cell untagged);
337 byte_array *allot_byte_array(cell size);
338 inline void vmprim_byte_array();
339 inline void vmprim_uninitialized_byte_array();
340 inline void vmprim_resize_byte_array();
343 tuple *allot_tuple(cell layout_);
344 inline void vmprim_tuple();
345 inline void vmprim_tuple_boa();
348 word *allot_word(cell vocab_, cell name_);
349 inline void vmprim_word();
350 inline void vmprim_word_xt();
351 void update_word_xt(cell w_);
352 inline void vmprim_optimized_p();
353 inline void vmprim_wrapper();
359 inline void vmprim_bignum_to_fixnum();
360 inline void vmprim_float_to_fixnum();
361 inline void vmprim_fixnum_divint();
362 inline void vmprim_fixnum_divmod();
363 bignum *fixnum_to_bignum(fixnum);
364 bignum *cell_to_bignum(cell);
365 bignum *long_long_to_bignum(s64 n);
366 bignum *ulong_long_to_bignum(u64 n);
367 inline fixnum sign_mask(fixnum x);
368 inline fixnum branchless_max(fixnum x, fixnum y);
369 inline fixnum branchless_abs(fixnum x);
370 inline void vmprim_fixnum_shift();
371 inline void vmprim_fixnum_to_bignum();
372 inline void vmprim_float_to_bignum();
373 inline void vmprim_bignum_eq();
374 inline void vmprim_bignum_add();
375 inline void vmprim_bignum_subtract();
376 inline void vmprim_bignum_multiply();
377 inline void vmprim_bignum_divint();
378 inline void vmprim_bignum_divmod();
379 inline void vmprim_bignum_mod();
380 inline void vmprim_bignum_and();
381 inline void vmprim_bignum_or();
382 inline void vmprim_bignum_xor();
383 inline void vmprim_bignum_shift();
384 inline void vmprim_bignum_less();
385 inline void vmprim_bignum_lesseq();
386 inline void vmprim_bignum_greater();
387 inline void vmprim_bignum_greatereq();
388 inline void vmprim_bignum_not();
389 inline void vmprim_bignum_bitp();
390 inline void vmprim_bignum_log2();
391 unsigned int bignum_producer(unsigned int digit);
392 inline void vmprim_byte_array_to_bignum();
393 cell unbox_array_size();
394 inline void vmprim_fixnum_to_float();
395 inline void vmprim_bignum_to_float();
396 inline void vmprim_str_to_float();
397 inline void vmprim_float_to_str();
398 inline void vmprim_float_eq();
399 inline void vmprim_float_add();
400 inline void vmprim_float_subtract();
401 inline void vmprim_float_multiply();
402 inline void vmprim_float_divfloat();
403 inline void vmprim_float_mod();
404 inline void vmprim_float_less();
405 inline void vmprim_float_lesseq();
406 inline void vmprim_float_greater();
407 inline void vmprim_float_greatereq();
408 inline void vmprim_float_bits();
409 inline void vmprim_bits_float();
410 inline void vmprim_double_bits();
411 inline void vmprim_bits_double();
412 fixnum to_fixnum(cell tagged);
413 cell to_cell(cell tagged);
414 void box_signed_1(s8 n);
415 void box_unsigned_1(u8 n);
416 void box_signed_2(s16 n);
417 void box_unsigned_2(u16 n);
418 void box_signed_4(s32 n);
419 void box_unsigned_4(u32 n);
420 void box_signed_cell(fixnum integer);
421 void box_unsigned_cell(cell cell);
422 void box_signed_8(s64 n);
423 s64 to_signed_8(cell obj);
424 void box_unsigned_8(u64 n);
425 u64 to_unsigned_8(cell obj);
426 void box_float(float flo);
427 float to_float(cell value);
428 void box_double(double flo);
429 double to_double(cell value);
430 void overflow_fixnum_add(fixnum x, fixnum y);
431 void overflow_fixnum_subtract(fixnum x, fixnum y);
432 void overflow_fixnum_multiply(fixnum x, fixnum y);
433 inline cell allot_integer(fixnum x);
434 inline cell allot_cell(cell x);
435 inline cell allot_float(double n);
436 inline bignum *float_to_bignum(cell tagged);
437 inline double bignum_to_float(cell tagged);
438 inline double untag_float(cell tagged);
439 inline double untag_float_check(cell tagged);
440 inline fixnum float_to_fixnum(cell tagged);
441 inline double fixnum_to_float(cell tagged);
442 template <typename T> T *untag_check(cell value);
443 template <typename T> T *untag(cell value);
448 inline void vmprim_fopen();
449 inline void vmprim_fgetc();
450 inline void vmprim_fread();
451 inline void vmprim_fputc();
452 inline void vmprim_fwrite();
453 inline void vmprim_fseek();
454 inline void vmprim_fflush();
455 inline void vmprim_fclose();
458 void clear_free_list(heap *heap);
459 void new_heap(heap *heap, cell size);
460 void add_to_free_list(heap *heap, free_heap_block *block);
461 void build_free_list(heap *heap, cell size);
462 void assert_free_block(free_heap_block *block);
463 free_heap_block *find_free_block(heap *heap, cell size);
464 free_heap_block *split_free_block(heap *heap, free_heap_block *block, cell size);
465 heap_block *heap_allot(heap *heap, cell size);
466 void heap_free(heap *heap, heap_block *block);
467 void mark_block(heap_block *block);
468 void unmark_marked(heap *heap);
469 void free_unmarked(heap *heap, heap_iterator iter);
470 void heap_usage(heap *heap, cell *used, cell *total_free, cell *max_free);
471 cell heap_size(heap *heap);
472 cell compute_heap_forwarding(heap *heap, unordered_map<heap_block *,char *> &forwarding);
473 void compact_heap(heap *heap, unordered_map<heap_block *,char *> &forwarding);
476 relocation_type relocation_type_of(relocation_entry r);
477 relocation_class relocation_class_of(relocation_entry r);
478 cell relocation_offset_of(relocation_entry r);
479 void flush_icache_for(code_block *block);
480 int number_of_parameters(relocation_type type);
481 void *object_xt(cell obj);
482 void *xt_pic(word *w, cell tagged_quot);
483 void *word_xt_pic(word *w);
484 void *word_xt_pic_tail(word *w);
485 void undefined_symbol();
486 void *get_rel_symbol(array *literals, cell index);
487 cell compute_relocation(relocation_entry rel, cell index, code_block *compiled);
488 void iterate_relocations(code_block *compiled, relocation_iterator iter);
489 void store_address_2_2(cell *ptr, cell value);
490 void store_address_masked(cell *ptr, fixnum value, cell mask, fixnum shift);
491 void store_address_in_code_block(cell klass, cell offset, fixnum absolute_value);
492 void update_literal_references_step(relocation_entry rel, cell index, code_block *compiled);
493 void update_literal_references(code_block *compiled);
494 void copy_literal_references(code_block *compiled);
495 void relocate_code_block_step(relocation_entry rel, cell index, code_block *compiled);
496 void update_word_references_step(relocation_entry rel, cell index, code_block *compiled);
497 void update_word_references(code_block *compiled);
498 void update_literal_and_word_references(code_block *compiled);
499 void check_code_address(cell address);
500 void mark_code_block(code_block *compiled);
501 void mark_stack_frame_step(stack_frame *frame);
502 void mark_active_blocks(context *stacks);
503 void mark_object_code_block(object *object);
504 void relocate_code_block(code_block *compiled);
505 void fixup_labels(array *labels, code_block *compiled);
506 code_block *allot_code_block(cell size);
507 code_block *add_code_block(cell type,cell code_,cell labels_,cell relocation_,cell literals_);
508 inline bool stack_traces_p()
510 return userenv[STACK_TRACES_ENV] != F;
515 unordered_map<heap_block *,char *> forwarding;
516 void init_code_heap(cell size);
517 bool in_code_heap_p(cell ptr);
518 void jit_compile_word(cell word_, cell def_, bool relocate);
519 void iterate_code_heap(code_heap_iterator iter);
520 void copy_code_heap_roots();
521 void update_code_heap_words();
522 inline void vmprim_modify_code_heap();
523 inline void vmprim_code_room();
524 code_block *forward_xt(code_block *compiled);
525 void forward_frame_xt(stack_frame *frame);
526 void forward_object_xts();
527 void fixup_object_xts();
528 void compact_code_heap();
529 inline void check_code_pointer(cell ptr);
533 cell code_relocation_base;
534 cell data_relocation_base;
535 void init_objects(image_header *h);
536 void load_data_heap(FILE *file, image_header *h, vm_parameters *p);
537 void load_code_heap(FILE *file, image_header *h, vm_parameters *p);
538 bool save_image(const vm_char *filename);
539 inline void vmprim_save_image();
540 inline void vmprim_save_image_and_exit();
541 void data_fixup(cell *cell);
542 template <typename T> void code_fixup(T **handle);
543 void fixup_word(word *word);
544 void fixup_quotation(quotation *quot);
545 void fixup_alien(alien *d);
546 void fixup_stack_frame(stack_frame *frame);
547 void fixup_callstack_object(callstack *stack);
548 void relocate_object(object *object);
549 void relocate_data();
550 void fixup_code_block(code_block *compiled);
551 void relocate_code();
552 void load_image(vm_parameters *p);
555 template<typename T> void iterate_callstack_object(callstack *stack_, T &iterator);
556 void check_frame(stack_frame *frame);
557 callstack *allot_callstack(cell size);
558 stack_frame *fix_callstack_top(stack_frame *top, stack_frame *bottom);
559 stack_frame *capture_start();
560 inline void vmprim_callstack();
561 inline void vmprim_set_callstack();
562 code_block *frame_code(stack_frame *frame);
563 cell frame_type(stack_frame *frame);
564 cell frame_executing(stack_frame *frame);
565 stack_frame *frame_successor(stack_frame *frame);
566 cell frame_scan(stack_frame *frame);
567 inline void vmprim_callstack_to_array();
568 stack_frame *innermost_stack_frame(callstack *stack);
569 stack_frame *innermost_stack_frame_quot(callstack *callstack);
570 inline void vmprim_innermost_stack_frame_executing();
571 inline void vmprim_innermost_stack_frame_scan();
572 inline void vmprim_set_innermost_stack_frame_quot();
573 void save_callstack_bottom(stack_frame *callstack_bottom);
574 template<typename T> void iterate_callstack(cell top, cell bottom, T &iterator);
575 inline void do_slots(cell obj, void (* iter)(cell *,factorvm*));
579 char *pinned_alien_offset(cell obj);
580 cell allot_alien(cell delegate_, cell displacement);
581 inline void vmprim_displaced_alien();
582 inline void vmprim_alien_address();
583 void *alien_pointer();
584 inline void vmprim_dlopen();
585 inline void vmprim_dlsym();
586 inline void vmprim_dlclose();
587 inline void vmprim_dll_validp();
588 char *alien_offset(cell obj);
590 void box_alien(void *ptr);
591 void to_value_struct(cell src, void *dest, cell size);
592 void box_value_struct(void *src, cell size);
593 void box_small_struct(cell x, cell y, cell size);
594 void box_medium_struct(cell x1, cell x2, cell x3, cell x4, cell size);
597 inline void vmprim_jit_compile();
598 inline void vmprim_array_to_quotation();
599 inline void vmprim_quotation_xt();
600 void set_quot_xt(quotation *quot, code_block *code);
601 void jit_compile(cell quot_, bool relocating);
602 void compile_all_words();
603 fixnum quot_code_offset_to_scan(cell quot_, cell offset);
604 cell lazy_jit_compile_impl(cell quot_, stack_frame *stack);
605 inline void vmprim_quot_compiled_p();
608 cell megamorphic_cache_hits;
609 cell megamorphic_cache_misses;
610 cell search_lookup_alist(cell table, cell klass);
611 cell search_lookup_hash(cell table, cell klass, cell hashcode);
612 cell nth_superclass(tuple_layout *layout, fixnum echelon);
613 cell nth_hashcode(tuple_layout *layout, fixnum echelon);
614 cell lookup_tuple_method(cell obj, cell methods);
615 cell lookup_hi_tag_method(cell obj, cell methods);
616 cell lookup_hairy_method(cell obj, cell methods);
617 cell lookup_method(cell obj, cell methods);
618 inline void vmprim_lookup_method();
619 cell object_class(cell obj);
620 cell method_cache_hashcode(cell klass, array *array);
621 void update_method_cache(cell cache, cell klass, cell method);
622 inline void vmprim_mega_cache_miss();
623 inline void vmprim_reset_dispatch_stats();
624 inline void vmprim_dispatch_stats();
628 cell cold_call_to_ic_transitions;
629 cell ic_to_pic_transitions;
630 cell pic_to_mega_transitions;
631 cell pic_counts[4]; /* PIC_TAG, PIC_HI_TAG, PIC_TUPLE, PIC_HI_TAG_TUPLE */
632 void init_inline_caching(int max_size);
633 void deallocate_inline_cache(cell return_address);
634 cell determine_inline_cache_type(array *cache_entries);
635 void update_pic_count(cell type);
636 code_block *compile_inline_cache(fixnum index,cell generic_word_,cell methods_,cell cache_entries_,bool tail_call_p);
637 void *megamorphic_call_stub(cell generic_word);
638 cell inline_cache_size(cell cache_entries);
639 cell add_inline_cache_entry(cell cache_entries_, cell klass_, cell method_);
640 void update_pic_transitions(cell pic_size);
641 void *inline_cache_miss(cell return_address);
642 inline void vmprim_reset_inline_cache_stats();
643 inline void vmprim_inline_cache_stats();
646 void default_parameters(vm_parameters *p);
647 bool factor_arg(const vm_char* str, const vm_char* arg, cell* value);
648 void init_parameters_from_args(vm_parameters *p, int argc, vm_char **argv);
649 void do_stage1_init();
650 void init_factor(vm_parameters *p);
651 void pass_args_to_factor(int argc, vm_char **argv);
652 void start_factor(vm_parameters *p);
653 void start_embedded_factor(vm_parameters *p);
654 void start_standalone_factor(int argc, vm_char **argv);
655 char *factor_eval_string(char *string);
656 void factor_eval_free(char *result);
658 void factor_sleep(long us);
661 inline void vmprim_existsp();
667 void ffi_dlopen(dll *dll);
668 void *ffi_dlsym(dll *dll, symbol_char *symbol);
669 void ffi_dlclose(dll *dll);
670 void sleep_micros(u64 usec);
672 void dealloc_segment(segment *block);
673 segment *alloc_segment(cell size);
674 const vm_char *vm_executable_path();
675 const vm_char *default_image_path();
676 void windows_image_path(vm_char *full_path, vm_char *temp_path, unsigned int length);
677 bool windows_stat(vm_char *path);
680 s64 current_micros();
681 void c_to_factor_toplevel(cell quot);
692 extern factorvm *lookup_vm(long threadid);
693 extern void register_vm(long threadid,factorvm *vm);