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