9 // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR. See:
11 // basis/compiler/constants/constants.factor
16 /* Spare context -- for callbacks */
19 /* New objects are allocated here, use the data->nursery reference
20 instead from c++ code. */
21 bump_allocator nursery;
23 /* Add this to a shifted address to compute write barrier offsets */
27 /* cdecl signal handler address, used by signal handler subprimitives */
28 cell signal_handler_addr;
30 /* are we handling a memory error? used to detect double faults */
33 /* Various special objects, accessed by special-object and
34 set-special-object primitives */
35 cell special_objects[special_object_count];
37 // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR.
41 /* Handle to the main thread we run in */
44 /* Data stack and retain stack sizes */
45 cell datastack_size, retainstack_size, callstack_size;
47 /* Stack of callback IDs */
48 std::vector<int> callback_ids;
50 /* Next callback ID */
53 /* List of callback function descriptors for PPC */
54 std::list<void**> function_descriptors;
56 /* Pooling unused contexts to make context allocation cheaper */
57 std::list<context*> unused_contexts;
59 /* Active contexts, for tracing by the GC */
60 std::set<context*> active_contexts;
62 /* Canonical truth value. In Factor, 't' */
65 /* External entry points */
66 c_to_factor_func_type c_to_factor_func;
68 /* Is profiling enabled? */
69 volatile cell sampling_profiler_p;
70 fixnum samples_per_second;
72 /* Global variables used to pass fault handler state from signal handler
74 bool signal_resumable;
76 cell signal_fault_addr;
78 unsigned int signal_fpu_status;
80 /* Pipe used to notify Factor multiplexer of signals */
81 int signal_pipe_input, signal_pipe_output;
83 /* State kept by the sampling profiler */
84 std::vector<profiling_sample> samples;
85 std::vector<cell> sample_callstacks;
87 /* GC is off during heap walking */
96 /* Pinned callback stubs */
97 callback_heap* callbacks;
99 /* Only set if we're performing a GC */
100 gc_state* current_gc;
101 volatile cell current_gc_p;
103 /* Set if we're in the jit */
104 volatile fixnum current_jit_count;
107 std::vector<cell> mark_stack;
109 /* If not NULL, we push GC events here */
110 std::vector<gc_event>* gc_events;
112 /* If a runtime function needs to call another function which potentially
113 allocates memory, it must wrap any references to the data and code
114 heaps with data_root and code_root smart pointers, which register
115 themselves here. See data_roots.hpp and code_roots.hpp */
117 std::vector<cell*> data_roots;
118 std::vector<code_root*> code_roots;
122 bool fep_help_was_shown;
126 /* Canonical bignums */
131 /* Method dispatch statistics */
132 dispatch_statistics dispatch_stats;
134 /* Number of entries in a polymorphic inline cache */
137 /* Incrementing object counter for identity hashing */
140 /* Sanity check to ensure that monotonic counter doesn't decrease */
141 uint64_t last_nano_count;
143 /* Stack for signal handlers, only used on Unix */
144 segment* signal_callstack_seg;
146 /* Are we already handling a fault? Used to catch double memory faults */
147 static bool fatal_erroring_p;
149 /* Safepoint state */
150 volatile safepoint_state safepoint;
153 context* new_context();
154 void init_context(context* ctx);
155 void delete_context(context* old_context);
156 void init_contexts(cell datastack_size_, cell retainstack_size_,
157 cell callstack_size_);
158 void delete_contexts();
159 cell begin_callback(cell quot);
161 void primitive_current_callback();
162 void primitive_context_object();
163 void primitive_context_object_for();
164 void primitive_set_context_object();
165 cell stack_to_array(cell bottom, cell top);
166 cell datastack_to_array(context* ctx);
167 void primitive_datastack();
168 void primitive_datastack_for();
169 cell retainstack_to_array(context* ctx);
170 void primitive_retainstack();
171 void primitive_retainstack_for();
172 cell array_to_stack(array* array, cell bottom);
173 void set_datastack(context* ctx, array* array);
174 void primitive_set_datastack();
175 void set_retainstack(context* ctx, array* array);
176 void primitive_set_retainstack();
177 void primitive_check_datastack();
178 void primitive_load_locals();
180 template <typename Iterator, typename Fixup>
181 void iterate_active_callstacks(Iterator& iter, Fixup& fixup) {
182 std::set<context*>::const_iterator begin = active_contexts.begin();
183 std::set<context*>::const_iterator end = active_contexts.end();
184 while (begin != end) {
185 iterate_callstack(*begin++, iter, fixup);
190 void primitive_exit();
191 void primitive_nano_count();
192 void primitive_sleep();
193 void primitive_set_slot();
196 void primitive_special_object();
197 void primitive_set_special_object();
198 void primitive_identity_hashcode();
199 void compute_identity_hashcode(object* obj);
200 void primitive_compute_identity_hashcode();
201 cell object_size(cell tagged);
202 cell clone_object(cell obj_);
203 void primitive_clone();
204 void primitive_become();
207 void clear_samples();
208 void record_sample(bool prolog_p);
209 void record_callstack_sample(cell* begin, cell* end, bool prolog_p);
210 void start_sampling_profiler(fixnum rate);
211 void end_sampling_profiler();
212 void set_sampling_profiler(fixnum rate);
213 void primitive_sampling_profiler();
214 void primitive_get_samples();
215 void primitive_clear_samples();
218 void general_error(vm_error_type error, cell arg1, cell arg2);
219 void type_error(cell type, cell tagged);
220 void not_implemented_error();
221 void verify_memory_protection_error(cell addr);
222 void memory_protection_error(cell pc, cell addr);
223 void signal_error(cell signal);
224 void divide_by_zero_error();
225 void fp_trap_error(unsigned int fpu_status);
226 void primitive_unimplemented();
227 void memory_signal_handler_impl();
228 void synchronous_signal_handler_impl();
229 void fp_signal_handler_impl();
232 int bignum_equal_p(bignum* x, bignum* y);
233 enum bignum_comparison bignum_compare(bignum* x, bignum* y);
234 bignum* bignum_add(bignum* x, bignum* y);
235 bignum* bignum_subtract(bignum* x, bignum* y);
236 bignum* bignum_square(bignum* x_);
237 bignum* bignum_multiply(bignum* x, bignum* y);
238 void bignum_divide(bignum* numerator, bignum* denominator, bignum** quotient,
240 bignum* bignum_quotient(bignum* numerator, bignum* denominator);
241 bignum* bignum_remainder(bignum* numerator, bignum* denominator);
242 cell bignum_to_cell(bignum* bn);
243 fixnum bignum_to_fixnum_strict(bignum* bn);
244 fixnum bignum_to_fixnum(bignum* bn);
245 int64_t bignum_to_long_long(bignum* bn);
246 uint64_t bignum_to_ulong_long(bignum* bn);
247 bignum* double_to_bignum(double x);
248 int bignum_equal_p_unsigned(bignum* x, bignum* y);
249 enum bignum_comparison bignum_compare_unsigned(bignum* x, bignum* y);
250 bignum* bignum_add_unsigned(bignum* x_, bignum* y_, int negative_p);
251 bignum* bignum_subtract_unsigned(bignum* x_, bignum* y_);
252 bignum* bignum_multiply_unsigned(bignum* x_, bignum* y_, int negative_p);
253 bignum* bignum_multiply_unsigned_small_factor(bignum* x, bignum_digit_type y,
255 void bignum_destructive_add(bignum* bn, bignum_digit_type n);
256 void bignum_destructive_scale_up(bignum* bn, bignum_digit_type factor);
257 void bignum_divide_unsigned_large_denominator(
258 bignum* numerator_, bignum* denominator_, bignum** quotient,
259 bignum** remainder, int q_negative_p, int r_negative_p);
260 void bignum_divide_unsigned_normalized(bignum* u, bignum* v, bignum* q);
261 bignum_digit_type bignum_divide_subtract(bignum_digit_type* v_start,
262 bignum_digit_type* v_end,
263 bignum_digit_type guess,
264 bignum_digit_type* u_start);
265 void bignum_divide_unsigned_medium_denominator(
266 bignum* numerator_, bignum_digit_type denominator, bignum** quotient,
267 bignum** remainder, int q_negative_p, int r_negative_p);
268 void bignum_destructive_normalization(bignum* source, bignum* target,
270 void bignum_destructive_unnormalization(bignum* bn, int shift_right);
271 bignum_digit_type bignum_digit_divide(
272 bignum_digit_type uh, bignum_digit_type ul, bignum_digit_type v,
273 bignum_digit_type* q) /* return value */;
274 bignum_digit_type bignum_digit_divide_subtract(bignum_digit_type v1,
275 bignum_digit_type v2,
276 bignum_digit_type guess,
277 bignum_digit_type* u);
278 void bignum_divide_unsigned_small_denominator(
279 bignum* numerator_, bignum_digit_type denominator, bignum** quotient,
280 bignum** remainder, int q_negative_p, int r_negative_p);
281 bignum_digit_type bignum_destructive_scale_down(
282 bignum* bn, bignum_digit_type denominator);
283 bignum* bignum_remainder_unsigned_small_denominator(bignum* n,
286 bignum* bignum_digit_to_bignum(bignum_digit_type digit, int negative_p);
287 bignum* allot_bignum(bignum_length_type length, int negative_p);
288 bignum* allot_bignum_zeroed(bignum_length_type length, int negative_p);
289 bignum* bignum_shorten_length(bignum* bn, bignum_length_type length);
290 bignum* bignum_trim(bignum* bn);
291 bignum* bignum_new_sign(bignum* x_, int negative_p);
292 bignum* bignum_maybe_new_sign(bignum* x_, int negative_p);
293 void bignum_destructive_copy(bignum* source, bignum* target);
294 bignum* bignum_bitwise_not(bignum* x_);
295 bignum* bignum_arithmetic_shift(bignum* arg1, fixnum n);
296 bignum* bignum_bitwise_and(bignum* arg1, bignum* arg2);
297 bignum* bignum_bitwise_ior(bignum* arg1, bignum* arg2);
298 bignum* bignum_bitwise_xor(bignum* arg1, bignum* arg2);
299 bignum* bignum_magnitude_ash(bignum* arg1_, fixnum n);
300 bignum* bignum_pospos_bitwise_op(int op, bignum* arg1_, bignum* arg2_);
301 bignum* bignum_posneg_bitwise_op(int op, bignum* arg1_, bignum* arg2_);
302 bignum* bignum_negneg_bitwise_op(int op, bignum* arg1_, bignum* arg2_);
303 void bignum_negate_magnitude(bignum* arg);
304 bignum* bignum_integer_length(bignum* x_);
305 int bignum_logbitp(int shift, bignum* arg);
306 int bignum_unsigned_logbitp(int shift, bignum* bn);
307 bignum* bignum_gcd(bignum* a_, bignum* b_);
310 void init_card_decks();
311 void set_data_heap(data_heap* data_);
312 void init_data_heap(cell young_size, cell aging_size, cell tenured_size);
313 void primitive_size();
314 data_heap_room data_room();
315 void primitive_data_room();
318 cell instances(cell type);
319 void primitive_all_instances();
321 template <typename Generation, typename Iterator>
322 inline void each_object(Generation* gen, Iterator& iterator) {
323 cell obj = gen->first_object();
325 iterator((object*)obj);
326 obj = gen->next_object_after(obj);
330 template <typename Iterator> inline void each_object(Iterator& iterator) {
332 /* The nursery can't be iterated because there may be gaps between
333 the objects (see factor_vm::reallot_array) so we require it to
335 FACTOR_ASSERT(data->nursery->occupied_space() == 0);
338 each_object(data->tenured, iterator);
339 each_object(data->aging, iterator);
343 /* the write barrier must be called any time we are potentially storing a
344 pointer from an older generation to a younger one */
345 inline void write_barrier(cell* slot_ptr) {
346 *(char*)(cards_offset + ((cell)slot_ptr >> card_bits)) = card_mark_mask;
347 *(char*)(decks_offset + ((cell)slot_ptr >> deck_bits)) = card_mark_mask;
350 inline void write_barrier(object* obj, cell size) {
351 cell start = (cell)obj & (~card_size + 1);
352 cell end = ((cell)obj + size + card_size - 1) & (~card_size + 1);
354 for (cell offset = start; offset < end; offset += card_size)
355 write_barrier((cell*)offset);
359 void check_data_heap();
363 void set_current_gc_op(gc_op op);
364 void start_gc_again();
365 void update_code_heap_for_minor_gc(std::set<code_block*>* remembered_set);
366 void collect_nursery();
367 void collect_aging();
368 void collect_to_tenured();
369 void update_code_roots_for_sweep();
370 void update_code_roots_for_compaction();
371 void collect_mark_impl(bool trace_contexts_p);
372 void collect_sweep_impl();
373 void collect_full(bool trace_contexts_p);
374 void collect_compact_impl(bool trace_contexts_p);
375 void collect_compact_code_impl(bool trace_contexts_p);
376 void collect_compact(bool trace_contexts_p);
377 void collect_growing_heap(cell requested_size, bool trace_contexts_p);
378 void gc(gc_op op, cell requested_size, bool trace_contexts_p);
379 void scrub_context(context* ctx);
380 void scrub_contexts();
381 void primitive_minor_gc();
382 void primitive_full_gc();
383 void primitive_compact_gc();
384 void primitive_enable_gc_events();
385 void primitive_disable_gc_events();
386 object* allot_object(cell type, cell size);
387 object* allot_large_object(cell type, cell size);
389 /* Allocates memory */
390 template <typename Type> Type* allot(cell size) {
391 return (Type*)allot_object(Type::type_number, size);
394 inline void check_data_pointer(object* pointer) {
395 FACTOR_ASSERT((current_gc && current_gc->op == collect_growing_heap_op) ||
396 data->seg->in_segment_p((cell)pointer));
400 template <typename Array> Array* allot_uninitialized_array(cell capacity);
401 template <typename Array>
402 bool reallot_array_in_place_p(Array* array, cell capacity);
403 template <typename Array> Array* reallot_array(Array* array_, cell capacity);
406 void print_chars(string* str);
407 void print_word(word* word, cell nesting);
408 void print_factor_string(string* str);
409 void print_array(array* array, cell nesting);
410 void print_byte_array(byte_array* array, cell nesting);
411 void print_tuple(tuple* tuple, cell nesting);
412 void print_alien(alien* alien, cell nesting);
413 void print_nested_obj(cell obj, fixnum nesting);
414 void print_obj(cell obj);
415 void print_objects(cell* start, cell* end);
416 void print_datastack();
417 void print_retainstack();
418 void print_callstack();
419 void print_callstack_object(callstack* obj);
420 void dump_cell(cell x);
421 void dump_memory(cell from, cell to);
422 template <typename Generation>
423 void dump_generation(const char* name, Generation* gen);
424 void dump_generations();
425 void dump_objects(cell type);
427 void find_data_references(cell look_for_);
428 void dump_code_heap();
429 void factorbug_usage(bool advanced_p);
431 void primitive_die();
434 inline void set_array_nth(array* array, cell slot, cell value);
435 array* allot_array(cell capacity, cell fill_);
436 void primitive_array();
437 cell allot_array_4(cell v1_, cell v2_, cell v3_, cell v4_);
438 void primitive_resize_array();
439 cell std_vector_to_array(std::vector<cell>& elements);
442 string* allot_string_internal(cell capacity);
443 void fill_string(string* str_, cell start, cell capacity, cell fill);
444 string* allot_string(cell capacity, cell fill);
445 void primitive_string();
446 bool reallot_string_in_place_p(string* str, cell capacity);
447 string* reallot_string(string* str_, cell capacity);
448 void primitive_resize_string();
449 void primitive_set_string_nth_fast();
452 cell tag_boolean(cell untagged) {
453 return (untagged ? true_object : false_object);
457 byte_array* allot_byte_array(cell size);
458 void primitive_byte_array();
459 void primitive_uninitialized_byte_array();
460 void primitive_resize_byte_array();
462 template <typename Type> byte_array* byte_array_from_value(Type* value);
465 void primitive_tuple();
466 void primitive_tuple_boa();
469 word* allot_word(cell name_, cell vocab_, cell hashcode_);
470 void primitive_word();
471 void primitive_word_code();
472 void primitive_optimized_p();
473 void primitive_wrapper();
474 void jit_compile_word(cell word_, cell def_, bool relocating);
475 cell find_all_words();
476 void compile_all_words();
479 void primitive_bignum_to_fixnum();
480 void primitive_bignum_to_fixnum_strict();
481 void primitive_float_to_fixnum();
482 void primitive_fixnum_divint();
483 void primitive_fixnum_divmod();
484 bignum* fixnum_to_bignum(fixnum);
485 bignum* cell_to_bignum(cell);
486 bignum* long_long_to_bignum(int64_t n);
487 bignum* ulong_long_to_bignum(uint64_t n);
488 inline fixnum sign_mask(fixnum x);
489 inline fixnum branchless_max(fixnum x, fixnum y);
490 inline fixnum branchless_abs(fixnum x);
491 void primitive_fixnum_shift();
492 void primitive_fixnum_to_bignum();
493 void primitive_float_to_bignum();
494 void primitive_bignum_eq();
495 void primitive_bignum_add();
496 void primitive_bignum_subtract();
497 void primitive_bignum_multiply();
498 void primitive_bignum_divint();
499 void primitive_bignum_divmod();
500 void primitive_bignum_mod();
501 void primitive_bignum_gcd();
502 void primitive_bignum_and();
503 void primitive_bignum_or();
504 void primitive_bignum_xor();
505 void primitive_bignum_shift();
506 void primitive_bignum_less();
507 void primitive_bignum_lesseq();
508 void primitive_bignum_greater();
509 void primitive_bignum_greatereq();
510 void primitive_bignum_not();
511 void primitive_bignum_bitp();
512 void primitive_bignum_log2();
513 inline cell unbox_array_size();
514 void primitive_fixnum_to_float();
515 void primitive_format_float();
516 void primitive_float_eq();
517 void primitive_float_add();
518 void primitive_float_subtract();
519 void primitive_float_multiply();
520 void primitive_float_divfloat();
521 void primitive_float_less();
522 void primitive_float_lesseq();
523 void primitive_float_greater();
524 void primitive_float_greatereq();
525 void primitive_float_bits();
526 void primitive_bits_float();
527 void primitive_double_bits();
528 void primitive_bits_double();
529 fixnum to_fixnum(cell tagged);
530 fixnum to_fixnum_strict(cell tagged);
531 cell to_cell(cell tagged);
532 cell from_signed_8(int64_t n);
533 int64_t to_signed_8(cell obj);
534 cell from_unsigned_8(uint64_t n);
535 uint64_t to_unsigned_8(cell obj);
536 float to_float(cell value);
537 double to_double(cell value);
538 inline void overflow_fixnum_add(fixnum x, fixnum y);
539 inline void overflow_fixnum_subtract(fixnum x, fixnum y);
540 inline void overflow_fixnum_multiply(fixnum x, fixnum y);
541 inline cell from_signed_cell(fixnum x);
542 inline cell from_unsigned_cell(cell x);
543 inline cell allot_float(double n);
544 inline bignum* float_to_bignum(cell tagged);
545 inline double untag_float(cell tagged);
546 inline double untag_float_check(cell tagged);
547 inline fixnum float_to_fixnum(cell tagged);
548 inline double fixnum_to_float(cell tagged);
551 template <typename Type> Type* untag_check(cell value);
556 FILE* safe_fopen(char* filename, char* mode);
557 int safe_fgetc(FILE* stream);
558 size_t safe_fread(void* ptr, size_t size, size_t nitems, FILE* stream);
559 void safe_fputc(int c, FILE* stream);
560 size_t safe_fwrite(void* ptr, size_t size, size_t nitems, FILE* stream);
561 int safe_ftell(FILE* stream);
562 void safe_fseek(FILE* stream, off_t offset, int whence);
563 void safe_fflush(FILE* stream);
564 void safe_fclose(FILE* stream);
565 void primitive_fopen();
566 FILE* pop_file_handle();
567 FILE* peek_file_handle();
568 void primitive_fgetc();
569 void primitive_fread();
570 void primitive_fputc();
571 void primitive_fwrite();
572 void primitive_ftell();
573 void primitive_fseek();
574 void primitive_fflush();
575 void primitive_fclose();
578 cell compute_entry_point_address(cell obj);
579 cell compute_entry_point_pic_address(word* w, cell tagged_quot);
580 cell compute_entry_point_pic_address(cell w_);
581 cell compute_entry_point_pic_tail_address(cell w_);
582 cell code_block_owner(code_block* compiled);
583 void update_word_references(code_block* compiled, bool reset_inline_caches);
584 void undefined_symbol();
585 cell compute_dlsym_address(array* literals, cell index);
587 cell compute_dlsym_toc_address(array* literals, cell index);
589 cell compute_vm_address(cell arg);
590 void store_external_address(instruction_operand op);
591 cell compute_here_address(cell arg, cell offset, code_block* compiled);
592 void initialize_code_block(code_block* compiled, cell literals);
593 void initialize_code_block(code_block* compiled);
594 void fixup_labels(array* labels, code_block* compiled);
595 code_block* allot_code_block(cell size, code_block_type type);
596 code_block* add_code_block(code_block_type type, cell code_, cell labels_,
597 cell owner_, cell relocation_, cell parameters_,
598 cell literals_, cell frame_size_untagged);
601 template <typename Iterator> void each_code_block(Iterator& iter) {
602 code->allocator->iterate(iter);
605 void init_code_heap(cell size);
606 void update_code_heap_words(bool reset_inline_caches);
607 void initialize_code_blocks();
608 void primitive_modify_code_heap();
609 void primitive_code_room();
610 void primitive_strip_stack_traces();
612 void primitive_code_blocks();
615 void init_callbacks(cell size);
616 void primitive_free_callback();
617 void primitive_callback();
618 void primitive_callback_room();
621 void init_objects(image_header* h);
622 void load_data_heap(FILE* file, image_header* h, vm_parameters* p);
623 void load_code_heap(FILE* file, image_header* h, vm_parameters* p);
624 bool save_image(const vm_char* saving_filename, const vm_char* filename);
625 void primitive_save_image();
626 void primitive_save_image_and_exit();
627 void fixup_data(cell data_offset, cell code_offset);
628 void fixup_code(cell data_offset, cell code_offset);
629 FILE* open_image(vm_parameters* p);
630 void load_image(vm_parameters* p);
631 bool read_embedded_image_footer(FILE* file, embedded_image_footer* footer);
632 bool embedded_image_p();
634 template <typename Iterator, typename Fixup>
635 void iterate_callstack_object(callstack* stack_, Iterator& iterator,
637 template <typename Iterator>
638 void iterate_callstack_object(callstack* stack_, Iterator& iterator);
640 callstack* allot_callstack(cell size);
641 void* second_from_top_stack_frame(context* ctx);
642 cell capture_callstack(context* ctx);
643 void primitive_callstack();
644 void primitive_callstack_for();
645 void* frame_predecessor(void* frame);
646 void primitive_callstack_to_array();
647 void primitive_innermost_stack_frame_executing();
648 void primitive_innermost_stack_frame_scan();
649 void primitive_set_innermost_stack_frame_quot();
650 void primitive_callstack_bounds();
652 template <typename Iterator, typename Fixup>
653 void iterate_callstack(context* ctx, Iterator& iterator, Fixup& fixup);
654 template <typename Iterator>
655 void iterate_callstack(context* ctx, Iterator& iterator);
658 void dispatch_signal_handler(cell* sp, cell* pc, cell newpc);
661 char* pinned_alien_offset(cell obj);
662 cell allot_alien(cell delegate_, cell displacement);
663 cell allot_alien(void* address);
664 void primitive_displaced_alien();
665 void primitive_alien_address();
666 void* alien_pointer();
667 void primitive_dlopen();
668 void primitive_dlsym();
669 void primitive_dlsym_raw();
670 void primitive_dlclose();
671 void primitive_dll_validp();
672 char* alien_offset(cell obj);
675 void primitive_jit_compile();
676 void* lazy_jit_compile_entry_point();
677 void primitive_array_to_quotation();
678 void primitive_quotation_code();
679 code_block* jit_compile_quot(cell owner_, cell quot_, bool relocating);
680 void jit_compile_quot(cell quot_, bool relocating);
681 fixnum quot_code_offset_to_scan(cell quot_, cell offset);
682 cell lazy_jit_compile(cell quot);
683 bool quot_compiled_p(quotation* quot);
684 void primitive_quot_compiled_p();
685 cell find_all_quotations();
686 void initialize_all_quotations();
689 cell search_lookup_alist(cell table, cell klass);
690 cell search_lookup_hash(cell table, cell klass, cell hashcode);
691 cell nth_superclass(tuple_layout* layout, fixnum echelon);
692 cell nth_hashcode(tuple_layout* layout, fixnum echelon);
693 cell lookup_tuple_method(cell obj, cell methods);
694 cell lookup_method(cell obj, cell methods);
695 void primitive_lookup_method();
696 cell object_class(cell obj);
697 cell method_cache_hashcode(cell klass, array* array);
698 void update_method_cache(cell cache, cell klass, cell method);
699 void primitive_mega_cache_miss();
700 void primitive_reset_dispatch_stats();
701 void primitive_dispatch_stats();
704 void init_inline_caching(int max_size);
705 void deallocate_inline_cache(cell return_address);
706 cell determine_inline_cache_type(array* cache_entries);
707 void update_pic_count(cell type);
708 code_block* compile_inline_cache(fixnum index, cell generic_word_,
709 cell methods_, cell cache_entries_,
711 cell inline_cache_size(cell cache_entries);
712 cell add_inline_cache_entry(cell cache_entries_, cell klass_, cell method_);
713 void update_pic_transitions(cell pic_size);
714 void* inline_cache_miss(cell return_address);
717 void c_to_factor(cell quot);
718 template <typename Func> Func get_entry_point(cell n);
719 void unwind_native_frames(cell quot, void* to);
720 cell get_fpu_state();
721 void set_fpu_state(cell state);
724 void default_parameters(vm_parameters* p);
725 bool factor_arg(const vm_char* str, const vm_char* arg, cell* value);
726 void init_parameters_from_args(vm_parameters* p, int argc, vm_char** argv);
727 void prepare_boot_image();
728 void init_factor(vm_parameters* p);
729 void pass_args_to_factor(int argc, vm_char** argv);
730 void start_factor(vm_parameters* p);
732 void start_embedded_factor(vm_parameters* p);
733 void start_standalone_factor(int argc, vm_char** argv);
734 char* factor_eval_string(char* string);
735 void factor_eval_free(char* result);
737 void factor_sleep(long us);
740 void primitive_existsp();
741 void move_file(const vm_char* path1, const vm_char* path2);
743 void ffi_dlopen(dll* dll);
744 void* ffi_dlsym(dll* dll, symbol_char* symbol);
745 void* ffi_dlsym_raw(dll* dll, symbol_char* symbol);
747 void* ffi_dlsym_toc(dll* dll, symbol_char* symbol);
749 void ffi_dlclose(dll* dll);
750 void c_to_factor_toplevel(cell quot);
752 void start_sampling_profiler_timer();
753 void end_sampling_profiler_timer();
754 static void open_console();
755 static void close_console();
756 static void lock_console();
757 static void unlock_console();
758 static void ignore_ctrl_c();
759 static void handle_ctrl_c();
763 HANDLE sampler_thread;
764 void sampler_thread_loop();
766 const vm_char* vm_executable_path();
767 const vm_char* default_image_path();
768 void windows_image_path(vm_char* full_path, vm_char* temp_path,
769 unsigned int length);
770 BOOL windows_stat(vm_char* path);
772 LONG exception_handler(PEXCEPTION_RECORD e, void* frame, PCONTEXT c,
776 void dispatch_signal(void* uap, void(handler)());
777 void unix_init_signals();
781 void call_fault_handler(exception_type_t exception,
782 exception_data_type_t code,
783 MACH_EXC_STATE_TYPE* exc_state,
784 MACH_THREAD_STATE_TYPE* thread_state,
785 MACH_FLOAT_STATE_TYPE* float_state);
788 factor_vm(THREADHANDLE thread_id);