-namespace factor
-{
+namespace factor {
struct growable_array;
struct code_root;
-struct factor_vm
-{
- //
- // vvvvvv
- // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR. See:
- // basis/vm/vm.factor
- // basis/compiler/constants/constants.factor
+struct factor_vm {
+ //
+ // vvvvvv
+ // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR. See:
+ // basis/vm/vm.factor
+ // basis/compiler/constants/constants.factor
- /* Current context */
- context *ctx;
+ /* Current context */
+ context* ctx;
- /* Spare context -- for callbacks */
- context *spare_ctx;
+ /* Spare context -- for callbacks */
+ context* spare_ctx;
- /* New objects are allocated here */
- nursery_space nursery;
+ /* New objects are allocated here */
+ nursery_space nursery;
- /* Add this to a shifted address to compute write barrier offsets */
- cell cards_offset;
- cell decks_offset;
+ /* Add this to a shifted address to compute write barrier offsets */
+ cell cards_offset;
+ cell decks_offset;
- /* cdecl signal handler address, used by signal handler subprimitives */
- cell signal_handler_addr;
+ /* cdecl signal handler address, used by signal handler subprimitives */
+ cell signal_handler_addr;
- /* are we handling a memory error? used to detect double faults */
- cell faulting_p;
+ /* are we handling a memory error? used to detect double faults */
+ cell faulting_p;
- /* Various special objects, accessed by special-object and
+ /* Various special objects, accessed by special-object and
set-special-object primitives */
- cell special_objects[special_object_count];
+ cell special_objects[special_object_count];
- // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR.
- // ^^^^^^
- //
+ // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR.
+ // ^^^^^^
+ //
- /* Handle to the main thread we run in */
- THREADHANDLE thread;
+ /* Handle to the main thread we run in */
+ THREADHANDLE thread;
- /* Data stack and retain stack sizes */
- cell datastack_size, retainstack_size, callstack_size;
+ /* Data stack and retain stack sizes */
+ cell datastack_size, retainstack_size, callstack_size;
- /* Stack of callback IDs */
- std::vector<int> callback_ids;
+ /* Stack of callback IDs */
+ std::vector<int> callback_ids;
- /* Next callback ID */
- int callback_id;
+ /* Next callback ID */
+ int callback_id;
- /* List of callback function descriptors for PPC */
- std::list<void **> function_descriptors;
+ /* List of callback function descriptors for PPC */
+ std::list<void**> function_descriptors;
- /* Pooling unused contexts to make context allocation cheaper */
- std::list<context *> unused_contexts;
+ /* Pooling unused contexts to make context allocation cheaper */
+ std::list<context*> unused_contexts;
- /* Active contexts, for tracing by the GC */
- std::set<context *> active_contexts;
+ /* Active contexts, for tracing by the GC */
+ std::set<context*> active_contexts;
- /* Canonical truth value. In Factor, 't' */
- cell true_object;
+ /* Canonical truth value. In Factor, 't' */
+ cell true_object;
- /* External entry points */
- c_to_factor_func_type c_to_factor_func;
+ /* External entry points */
+ c_to_factor_func_type c_to_factor_func;
- /* Is profiling enabled? */
- volatile cell sampling_profiler_p;
- fixnum samples_per_second;
-
- /* Global variables used to pass fault handler state from signal handler
- to VM */
- bool signal_resumable;
- cell signal_number;
- cell signal_fault_addr;
- cell signal_fault_pc;
- unsigned int signal_fpu_status;
-
- /* Pipe used to notify Factor multiplexer of signals */
- int signal_pipe_input, signal_pipe_output;
-
- /* State kept by the sampling profiler */
- std::vector<profiling_sample> samples;
- std::vector<cell> sample_callstacks;
-
- /* GC is off during heap walking */
- bool gc_off;
-
- /* Data heap */
- data_heap *data;
-
- /* Code heap */
- code_heap *code;
-
- /* Pinned callback stubs */
- callback_heap *callbacks;
-
- /* Only set if we're performing a GC */
- gc_state *current_gc;
- volatile cell current_gc_p;
-
- /* Set if we're in the jit */
- volatile fixnum current_jit_count;
-
- /* Mark stack */
- std::vector<cell> mark_stack;
-
- /* If not NULL, we push GC events here */
- std::vector<gc_event> *gc_events;
-
- /* If a runtime function needs to call another function which potentially
- allocates memory, it must wrap any references to the data and code
- heaps with data_root and code_root smart pointers, which register
- themselves here. See data_roots.hpp and code_roots.hpp */
- std::vector<data_root_range> data_roots;
- std::vector<cell> bignum_roots;
- std::vector<code_root *> code_roots;
-
- /* Debugger */
- bool fep_p;
- bool fep_help_was_shown;
- bool fep_disabled;
- bool full_output;
-
- /* Canonical bignums */
- cell bignum_zero;
- cell bignum_pos_one;
- cell bignum_neg_one;
-
- /* Method dispatch statistics */
- dispatch_statistics dispatch_stats;
-
- /* Number of entries in a polymorphic inline cache */
- cell max_pic_size;
-
- /* Incrementing object counter for identity hashing */
- cell object_counter;
-
- /* Sanity check to ensure that monotonic counter doesn't
- decrease */
- u64 last_nano_count;
-
- /* Stack for signal handlers, only used on Unix */
- segment *signal_callstack_seg;
-
- /* Are we already handling a fault? Used to catch double memory faults */
- static bool fatal_erroring_p;
-
- /* Safepoint state */
- volatile safepoint_state safepoint;
-
- // contexts
- context *new_context();
- void init_context(context *ctx);
- void delete_context(context *old_context);
- void init_contexts(cell datastack_size_, cell retainstack_size_, cell callstack_size_);
- void delete_contexts();
- cell begin_callback(cell quot);
- void end_callback();
- void primitive_current_callback();
- void primitive_context_object();
- void primitive_context_object_for();
- void primitive_set_context_object();
- cell stack_to_array(cell bottom, cell top);
- cell datastack_to_array(context *ctx);
- void primitive_datastack();
- void primitive_datastack_for();
- cell retainstack_to_array(context *ctx);
- void primitive_retainstack();
- void primitive_retainstack_for();
- cell array_to_stack(array *array, cell bottom);
- void set_datastack(context *ctx, array *array);
- void primitive_set_datastack();
- void set_retainstack(context *ctx, array *array);
- void primitive_set_retainstack();
- void primitive_check_datastack();
- void primitive_load_locals();
-
- template<typename Iterator, typename Fixup>
- void iterate_active_callstacks(Iterator &iter, Fixup &fixup)
- {
- std::set<context *>::const_iterator begin = active_contexts.begin();
- std::set<context *>::const_iterator end = active_contexts.end();
- while(begin != end)
- {
- iterate_callstack(*begin++,iter,fixup);
- }
- }
-
- // run
- void primitive_exit();
- void primitive_nano_count();
- void primitive_sleep();
- void primitive_set_slot();
-
- // objects
- void primitive_special_object();
- void primitive_set_special_object();
- void primitive_identity_hashcode();
- void compute_identity_hashcode(object *obj);
- void primitive_compute_identity_hashcode();
- cell object_size(cell tagged);
- cell clone_object(cell obj_);
- void primitive_clone();
- void primitive_become();
-
- // sampling_profiler
- void clear_samples();
- void record_sample(bool prolog_p);
- void record_callstack_sample(cell *begin, cell *end, bool prolog_p);
- void start_sampling_profiler(fixnum rate);
- void end_sampling_profiler();
- void set_sampling_profiler(fixnum rate);
- void primitive_sampling_profiler();
- void primitive_get_samples();
- void primitive_clear_samples();
-
- // errors
- void general_error(vm_error_type error, cell arg1, cell arg2);
- void type_error(cell type, cell tagged);
- void not_implemented_error();
- void verify_memory_protection_error(cell addr);
- void memory_protection_error(cell pc, cell addr);
- void signal_error(cell signal);
- void divide_by_zero_error();
- void fp_trap_error(unsigned int fpu_status);
- void primitive_unimplemented();
- void memory_signal_handler_impl();
- void synchronous_signal_handler_impl();
- void fp_signal_handler_impl();
-
- // bignum
- int bignum_equal_p(bignum * x, bignum * y);
- enum bignum_comparison bignum_compare(bignum * x, bignum * y);
- bignum *bignum_add(bignum * x, bignum * y);
- bignum *bignum_subtract(bignum * x, bignum * y);
- bignum *bignum_multiply(bignum * x, bignum * y);
- void bignum_divide(bignum * numerator, bignum * denominator, bignum * * quotient, bignum * * remainder);
- bignum *bignum_quotient(bignum * numerator, bignum * denominator);
- bignum *bignum_remainder(bignum * numerator, bignum * denominator);
- cell bignum_to_cell(bignum * bignum);
- fixnum bignum_to_fixnum(bignum * bignum);
- s64 bignum_to_long_long(bignum * bignum);
- u64 bignum_to_ulong_long(bignum * bignum);
- bignum *double_to_bignum(double x);
- int bignum_equal_p_unsigned(bignum * x, bignum * y);
- enum bignum_comparison bignum_compare_unsigned(bignum * x, bignum * y);
- bignum *bignum_add_unsigned(bignum * x, bignum * y, int negative_p);
- bignum *bignum_subtract_unsigned(bignum * x, bignum * y);
- bignum *bignum_multiply_unsigned(bignum * x, bignum * y, int negative_p);
- bignum *bignum_multiply_unsigned_small_factor(bignum * x, bignum_digit_type y,int negative_p);
- void bignum_destructive_add(bignum * bignum, bignum_digit_type n);
- void bignum_destructive_scale_up(bignum * bignum, bignum_digit_type factor);
- void bignum_divide_unsigned_large_denominator(bignum * numerator, bignum * denominator,
- bignum * * quotient, bignum * * remainder, int q_negative_p, int r_negative_p);
- void bignum_divide_unsigned_normalized(bignum * u, bignum * v, bignum * q);
- bignum_digit_type bignum_divide_subtract(bignum_digit_type * v_start, bignum_digit_type * v_end,
- bignum_digit_type guess, bignum_digit_type * u_start);
- void bignum_divide_unsigned_medium_denominator(bignum * numerator,bignum_digit_type denominator,
- bignum * * quotient, bignum * * remainder,int q_negative_p, int r_negative_p);
- void bignum_destructive_normalization(bignum * source, bignum * target, int shift_left);
- void bignum_destructive_unnormalization(bignum * bignum, int shift_right);
- bignum_digit_type bignum_digit_divide(bignum_digit_type uh, bignum_digit_type ul,
- bignum_digit_type v, bignum_digit_type * q) /* return value */;
- bignum_digit_type bignum_digit_divide_subtract(bignum_digit_type v1, bignum_digit_type v2,
- bignum_digit_type guess, bignum_digit_type * u);
- void bignum_divide_unsigned_small_denominator(bignum * numerator, bignum_digit_type denominator,
- bignum * * quotient, bignum * * remainder,int q_negative_p, int r_negative_p);
- bignum_digit_type bignum_destructive_scale_down(bignum * bignum, bignum_digit_type denominator);
- bignum * bignum_remainder_unsigned_small_denominator(bignum * n, bignum_digit_type d, int negative_p);
- bignum *bignum_digit_to_bignum(bignum_digit_type digit, int negative_p);
- bignum *allot_bignum(bignum_length_type length, int negative_p);
- bignum * allot_bignum_zeroed(bignum_length_type length, int negative_p);
- bignum *bignum_shorten_length(bignum * bignum, bignum_length_type length);
- bignum *bignum_trim(bignum * bignum);
- bignum *bignum_new_sign(bignum * x, int negative_p);
- bignum *bignum_maybe_new_sign(bignum * x, int negative_p);
- void bignum_destructive_copy(bignum * source, bignum * target);
- bignum *bignum_bitwise_not(bignum * x);
- bignum *bignum_arithmetic_shift(bignum * arg1, fixnum n);
- bignum *bignum_bitwise_and(bignum * arg1, bignum * arg2);
- bignum *bignum_bitwise_ior(bignum * arg1, bignum * arg2);
- bignum *bignum_bitwise_xor(bignum * arg1, bignum * arg2);
- bignum *bignum_magnitude_ash(bignum * arg1, fixnum n);
- bignum *bignum_pospos_bitwise_op(int op, bignum * arg1, bignum * arg2);
- bignum *bignum_posneg_bitwise_op(int op, bignum * arg1, bignum * arg2);
- bignum *bignum_negneg_bitwise_op(int op, bignum * arg1, bignum * arg2);
- void bignum_negate_magnitude(bignum * arg);
- bignum *bignum_integer_length(bignum * x);
- int bignum_logbitp(int shift, bignum * arg);
- int bignum_unsigned_logbitp(int shift, bignum * bignum);
- bignum *bignum_gcd(bignum * a, bignum * b);
-
- //data heap
- void init_card_decks();
- void set_data_heap(data_heap *data_);
- void init_data_heap(cell young_size, cell aging_size, cell tenured_size);
- void primitive_size();
- data_heap_room data_room();
- void primitive_data_room();
- void begin_scan();
- void end_scan();
- cell instances(cell type);
- void primitive_all_instances();
-
- template<typename Generation, typename Iterator>
- inline void each_object(Generation *gen, Iterator &iterator)
- {
- cell obj = gen->first_object();
- while(obj)
- {
- iterator((object *)obj);
- obj = gen->next_object_after(obj);
- }
- }
-
- template<typename Iterator> inline void each_object(Iterator &iterator)
- {
- gc_off = true;
-
- each_object(data->tenured,iterator);
- each_object(data->aging,iterator);
- each_object(data->nursery,iterator);
-
- gc_off = false;
- }
-
- /* the write barrier must be called any time we are potentially storing a
- pointer from an older generation to a younger one */
- inline void write_barrier(cell *slot_ptr)
- {
- *(char *)(cards_offset + ((cell)slot_ptr >> card_bits)) = card_mark_mask;
- *(char *)(decks_offset + ((cell)slot_ptr >> deck_bits)) = card_mark_mask;
- }
-
- inline void write_barrier(object *obj, cell size)
- {
- cell start = (cell)obj & (~card_size + 1);
- cell end = ((cell)obj + size + card_size - 1) & (~card_size + 1);
-
- for(cell offset = start; offset < end; offset += card_size)
- write_barrier((cell *)offset);
- }
-
- // data heap checker
- void check_data_heap();
-
- // gc
- void end_gc();
- void set_current_gc_op(gc_op op);
- void start_gc_again();
- void update_code_heap_for_minor_gc(std::set<code_block *> *remembered_set);
- void collect_nursery();
- void collect_aging();
- void collect_to_tenured();
- void update_code_roots_for_sweep();
- void update_code_roots_for_compaction();
- void collect_mark_impl(bool trace_contexts_p);
- void collect_sweep_impl();
- void collect_full(bool trace_contexts_p);
- void collect_compact_impl(bool trace_contexts_p);
- void collect_compact_code_impl(bool trace_contexts_p);
- void collect_compact(bool trace_contexts_p);
- void collect_growing_heap(cell requested_size, bool trace_contexts_p);
- void gc(gc_op op, cell requested_size, bool trace_contexts_p);
- void scrub_context(context *ctx);
- void scrub_contexts();
- void primitive_minor_gc();
- void primitive_full_gc();
- void primitive_compact_gc();
- void primitive_enable_gc_events();
- void primitive_disable_gc_events();
- object *allot_object(cell type, cell size);
- object *allot_large_object(cell type, cell size);
-
- /* Allocates memory */
- template<typename Type> Type *allot(cell size)
- {
- return (Type *)allot_object(Type::type_number,size);
- }
-
- inline void check_data_pointer(object *pointer)
- {
- #ifdef FACTOR_DEBUG
- if(!(current_gc && current_gc->op == collect_growing_heap_op))
- FACTOR_ASSERT(data->seg->in_segment_p((cell)pointer));
- #endif
- }
-
- // generic arrays
- template<typename Array> Array *allot_uninitialized_array(cell capacity);
- template<typename Array> bool reallot_array_in_place_p(Array *array, cell capacity);
- template<typename Array> Array *reallot_array(Array *array_, cell capacity);
-
- // debug
- void print_chars(string* str);
- void print_word(word* word, cell nesting);
- void print_factor_string(string* str);
- void print_array(array* array, cell nesting);
- void print_byte_array(byte_array *array, cell nesting);
- void print_tuple(tuple *tuple, cell nesting);
- void print_alien(alien *alien, cell nesting);
- void print_nested_obj(cell obj, fixnum nesting);
- void print_obj(cell obj);
- void print_objects(cell *start, cell *end);
- void print_datastack();
- void print_retainstack();
- void print_callstack();
- void print_callstack_object(callstack *obj);
- void dump_cell(cell x);
- void dump_memory(cell from, cell to);
- template<typename Generation> void dump_generation(const char *name, Generation *gen);
- void dump_generations();
- void dump_objects(cell type);
- void dump_edges();
- void find_data_references(cell look_for_);
- void dump_code_heap();
- void factorbug_usage(bool advanced_p);
- void factorbug();
- void primitive_die();
-
- // arrays
- inline void set_array_nth(array *array, cell slot, cell value);
- array *allot_array(cell capacity, cell fill_);
- void primitive_array();
- cell allot_array_1(cell obj_);
- cell allot_array_2(cell v1_, cell v2_);
- cell allot_array_4(cell v1_, cell v2_, cell v3_, cell v4_);
- void primitive_resize_array();
- cell std_vector_to_array(std::vector<cell> &elements);
-
- // strings
- string *allot_string_internal(cell capacity);
- void fill_string(string *str_, cell start, cell capacity, cell fill);
- string *allot_string(cell capacity, cell fill);
- void primitive_string();
- bool reallot_string_in_place_p(string *str, cell capacity);
- string* reallot_string(string *str_, cell capacity);
- void primitive_resize_string();
- void primitive_set_string_nth_fast();
-
- // booleans
- cell tag_boolean(cell untagged)
- {
- return (untagged ? true_object : false_object);
- }
-
- // byte arrays
- byte_array *allot_byte_array(cell size);
- void primitive_byte_array();
- void primitive_uninitialized_byte_array();
- void primitive_resize_byte_array();
-
- template<typename Type> byte_array *byte_array_from_value(Type *value);
-
- // tuples
- void primitive_tuple();
- void primitive_tuple_boa();
-
- // words
- word *allot_word(cell name_, cell vocab_, cell hashcode_);
- void primitive_word();
- void primitive_word_code();
- void primitive_optimized_p();
- void primitive_wrapper();
- void jit_compile_word(cell word_, cell def_, bool relocating);
- cell find_all_words();
- void compile_all_words();
-
- // math
- void primitive_bignum_to_fixnum();
- void primitive_float_to_fixnum();
- void primitive_fixnum_divint();
- void primitive_fixnum_divmod();
- bignum *fixnum_to_bignum(fixnum);
- bignum *cell_to_bignum(cell);
- bignum *long_long_to_bignum(s64 n);
- bignum *ulong_long_to_bignum(u64 n);
- inline fixnum sign_mask(fixnum x);
- inline fixnum branchless_max(fixnum x, fixnum y);
- inline fixnum branchless_abs(fixnum x);
- void primitive_fixnum_shift();
- void primitive_fixnum_to_bignum();
- void primitive_float_to_bignum();
- void primitive_bignum_eq();
- void primitive_bignum_add();
- void primitive_bignum_subtract();
- void primitive_bignum_multiply();
- void primitive_bignum_divint();
- void primitive_bignum_divmod();
- void primitive_bignum_mod();
- void primitive_bignum_gcd();
- void primitive_bignum_and();
- void primitive_bignum_or();
- void primitive_bignum_xor();
- void primitive_bignum_shift();
- void primitive_bignum_less();
- void primitive_bignum_lesseq();
- void primitive_bignum_greater();
- void primitive_bignum_greatereq();
- void primitive_bignum_not();
- void primitive_bignum_bitp();
- void primitive_bignum_log2();
- inline cell unbox_array_size();
- cell unbox_array_size_slow();
- void primitive_fixnum_to_float();
- void primitive_format_float();
- void primitive_float_eq();
- void primitive_float_add();
- void primitive_float_subtract();
- void primitive_float_multiply();
- void primitive_float_divfloat();
- void primitive_float_less();
- void primitive_float_lesseq();
- void primitive_float_greater();
- void primitive_float_greatereq();
- void primitive_float_bits();
- void primitive_bits_float();
- void primitive_double_bits();
- void primitive_bits_double();
- fixnum to_fixnum(cell tagged);
- cell to_cell(cell tagged);
- cell from_signed_8(s64 n);
- s64 to_signed_8(cell obj);
- cell from_unsigned_8(u64 n);
- u64 to_unsigned_8(cell obj);
- float to_float(cell value);
- double to_double(cell value);
- inline void overflow_fixnum_add(fixnum x, fixnum y);
- inline void overflow_fixnum_subtract(fixnum x, fixnum y);
- inline void overflow_fixnum_multiply(fixnum x, fixnum y);
- inline cell from_signed_cell(fixnum x);
- inline cell from_unsigned_cell(cell x);
- inline cell allot_float(double n);
- inline bignum *float_to_bignum(cell tagged);
- inline double untag_float(cell tagged);
- inline double untag_float_check(cell tagged);
- inline fixnum float_to_fixnum(cell tagged);
- inline double fixnum_to_float(cell tagged);
-
- // tagged
- template<typename Type> Type *untag_check(cell value);
-
- // io
- void init_c_io();
- void io_error();
- FILE* safe_fopen(char *filename, char *mode);
- int safe_fgetc(FILE *stream);
- size_t safe_fread(void *ptr, size_t size, size_t nitems, FILE *stream);
- void safe_fputc(int c, FILE* stream);
- size_t safe_fwrite(void *ptr, size_t size, size_t nitems, FILE *stream);
- int safe_ftell(FILE *stream);
- void safe_fseek(FILE *stream, off_t offset, int whence);
- void safe_fflush(FILE *stream);
- void safe_fclose(FILE *stream);
- void primitive_fopen();
- FILE *pop_file_handle();
- FILE *peek_file_handle();
- void primitive_fgetc();
- void primitive_fread();
- void primitive_fputc();
- void primitive_fwrite();
- void primitive_ftell();
- void primitive_fseek();
- void primitive_fflush();
- void primitive_fclose();
-
- // code_block
- cell compute_entry_point_address(cell obj);
- cell compute_entry_point_pic_address(word *w, cell tagged_quot);
- cell compute_entry_point_pic_address(cell w_);
- cell compute_entry_point_pic_tail_address(cell w_);
- cell code_block_owner(code_block *compiled);
- void update_word_references(code_block *compiled, bool reset_inline_caches);
- void undefined_symbol();
- cell compute_dlsym_address(array *literals, cell index);
+ /* Is profiling enabled? */
+ volatile cell sampling_profiler_p;
+ fixnum samples_per_second;
+
+ /* Global variables used to pass fault handler state from signal handler
+ to VM */
+ bool signal_resumable;
+ cell signal_number;
+ cell signal_fault_addr;
+ cell signal_fault_pc;
+ unsigned int signal_fpu_status;
+
+ /* Pipe used to notify Factor multiplexer of signals */
+ int signal_pipe_input, signal_pipe_output;
+
+ /* State kept by the sampling profiler */
+ std::vector<profiling_sample> samples;
+ std::vector<cell> sample_callstacks;
+
+ /* GC is off during heap walking */
+ bool gc_off;
+
+ /* Data heap */
+ data_heap* data;
+
+ /* Code heap */
+ code_heap* code;
+
+ /* Pinned callback stubs */
+ callback_heap* callbacks;
+
+ /* Only set if we're performing a GC */
+ gc_state* current_gc;
+ volatile cell current_gc_p;
+
+ /* Set if we're in the jit */
+ volatile fixnum current_jit_count;
+
+ /* Mark stack */
+ std::vector<cell> mark_stack;
+
+ /* If not NULL, we push GC events here */
+ std::vector<gc_event>* gc_events;
+
+ /* If a runtime function needs to call another function which potentially
+ allocates memory, it must wrap any references to the data and code
+ heaps with data_root and code_root smart pointers, which register
+ themselves here. See data_roots.hpp and code_roots.hpp */
+ std::vector<data_root_range> data_roots;
+ std::vector<cell> bignum_roots;
+ std::vector<code_root*> code_roots;
+
+ /* Debugger */
+ bool fep_p;
+ bool fep_help_was_shown;
+ bool fep_disabled;
+ bool full_output;
+
+ /* Canonical bignums */
+ cell bignum_zero;
+ cell bignum_pos_one;
+ cell bignum_neg_one;
+
+ /* Method dispatch statistics */
+ dispatch_statistics dispatch_stats;
+
+ /* Number of entries in a polymorphic inline cache */
+ cell max_pic_size;
+
+ /* Incrementing object counter for identity hashing */
+ cell object_counter;
+
+ /* Sanity check to ensure that monotonic counter doesn't decrease */
+ u64 last_nano_count;
+
+ /* Stack for signal handlers, only used on Unix */
+ segment* signal_callstack_seg;
+
+ /* Are we already handling a fault? Used to catch double memory faults */
+ static bool fatal_erroring_p;
+
+ /* Safepoint state */
+ volatile safepoint_state safepoint;
+
+ // contexts
+ context* new_context();
+ void init_context(context* ctx);
+ void delete_context(context* old_context);
+ void init_contexts(cell datastack_size_, cell retainstack_size_,
+ cell callstack_size_);
+ void delete_contexts();
+ cell begin_callback(cell quot);
+ void end_callback();
+ void primitive_current_callback();
+ void primitive_context_object();
+ void primitive_context_object_for();
+ void primitive_set_context_object();
+ cell stack_to_array(cell bottom, cell top);
+ cell datastack_to_array(context* ctx);
+ void primitive_datastack();
+ void primitive_datastack_for();
+ cell retainstack_to_array(context* ctx);
+ void primitive_retainstack();
+ void primitive_retainstack_for();
+ cell array_to_stack(array* array, cell bottom);
+ void set_datastack(context* ctx, array* array);
+ void primitive_set_datastack();
+ void set_retainstack(context* ctx, array* array);
+ void primitive_set_retainstack();
+ void primitive_check_datastack();
+ void primitive_load_locals();
+
+ template <typename Iterator, typename Fixup>
+ void iterate_active_callstacks(Iterator& iter, Fixup& fixup) {
+ std::set<context*>::const_iterator begin = active_contexts.begin();
+ std::set<context*>::const_iterator end = active_contexts.end();
+ while (begin != end) {
+ iterate_callstack(*begin++, iter, fixup);
+ }
+ }
+
+ // run
+ void primitive_exit();
+ void primitive_nano_count();
+ void primitive_sleep();
+ void primitive_set_slot();
+
+ // objects
+ void primitive_special_object();
+ void primitive_set_special_object();
+ void primitive_identity_hashcode();
+ void compute_identity_hashcode(object* obj);
+ void primitive_compute_identity_hashcode();
+ cell object_size(cell tagged);
+ cell clone_object(cell obj_);
+ void primitive_clone();
+ void primitive_become();
+
+ // sampling_profiler
+ void clear_samples();
+ void record_sample(bool prolog_p);
+ void record_callstack_sample(cell* begin, cell* end, bool prolog_p);
+ void start_sampling_profiler(fixnum rate);
+ void end_sampling_profiler();
+ void set_sampling_profiler(fixnum rate);
+ void primitive_sampling_profiler();
+ void primitive_get_samples();
+ void primitive_clear_samples();
+
+ // errors
+ void general_error(vm_error_type error, cell arg1, cell arg2);
+ void type_error(cell type, cell tagged);
+ void not_implemented_error();
+ void verify_memory_protection_error(cell addr);
+ void memory_protection_error(cell pc, cell addr);
+ void signal_error(cell signal);
+ void divide_by_zero_error();
+ void fp_trap_error(unsigned int fpu_status);
+ void primitive_unimplemented();
+ void memory_signal_handler_impl();
+ void synchronous_signal_handler_impl();
+ void fp_signal_handler_impl();
+
+ // bignum
+ int bignum_equal_p(bignum* x, bignum* y);
+ enum bignum_comparison bignum_compare(bignum* x, bignum* y);
+ bignum* bignum_add(bignum* x, bignum* y);
+ bignum* bignum_subtract(bignum* x, bignum* y);
+ bignum* bignum_multiply(bignum* x, bignum* y);
+ void bignum_divide(bignum* numerator, bignum* denominator, bignum** quotient,
+ bignum** remainder);
+ bignum* bignum_quotient(bignum* numerator, bignum* denominator);
+ bignum* bignum_remainder(bignum* numerator, bignum* denominator);
+ cell bignum_to_cell(bignum* bignum);
+ fixnum bignum_to_fixnum(bignum* bignum);
+ s64 bignum_to_long_long(bignum* bignum);
+ u64 bignum_to_ulong_long(bignum* bignum);
+ bignum* double_to_bignum(double x);
+ int bignum_equal_p_unsigned(bignum* x, bignum* y);
+ enum bignum_comparison bignum_compare_unsigned(bignum* x, bignum* y);
+ bignum* bignum_add_unsigned(bignum* x, bignum* y, int negative_p);
+ bignum* bignum_subtract_unsigned(bignum* x, bignum* y);
+ bignum* bignum_multiply_unsigned(bignum* x, bignum* y, int negative_p);
+ bignum* bignum_multiply_unsigned_small_factor(bignum* x, bignum_digit_type y,
+ int negative_p);
+ void bignum_destructive_add(bignum* bignum, bignum_digit_type n);
+ void bignum_destructive_scale_up(bignum* bignum, bignum_digit_type factor);
+ void bignum_divide_unsigned_large_denominator(
+ bignum* numerator, bignum* denominator, bignum** quotient,
+ bignum** remainder, int q_negative_p, int r_negative_p);
+ void bignum_divide_unsigned_normalized(bignum* u, bignum* v, bignum* q);
+ bignum_digit_type bignum_divide_subtract(bignum_digit_type* v_start,
+ bignum_digit_type* v_end,
+ bignum_digit_type guess,
+ bignum_digit_type* u_start);
+ void bignum_divide_unsigned_medium_denominator(
+ bignum* numerator, bignum_digit_type denominator, bignum** quotient,
+ bignum** remainder, int q_negative_p, int r_negative_p);
+ void bignum_destructive_normalization(bignum* source, bignum* target,
+ int shift_left);
+ void bignum_destructive_unnormalization(bignum* bignum, int shift_right);
+ bignum_digit_type bignum_digit_divide(
+ bignum_digit_type uh, bignum_digit_type ul, bignum_digit_type v,
+ bignum_digit_type* q) /* return value */;
+ bignum_digit_type bignum_digit_divide_subtract(bignum_digit_type v1,
+ bignum_digit_type v2,
+ bignum_digit_type guess,
+ bignum_digit_type* u);
+ void bignum_divide_unsigned_small_denominator(
+ bignum* numerator, bignum_digit_type denominator, bignum** quotient,
+ bignum** remainder, int q_negative_p, int r_negative_p);
+ bignum_digit_type bignum_destructive_scale_down(
+ bignum* bignum, bignum_digit_type denominator);
+ bignum* bignum_remainder_unsigned_small_denominator(bignum* n,
+ bignum_digit_type d,
+ int negative_p);
+ bignum* bignum_digit_to_bignum(bignum_digit_type digit, int negative_p);
+ bignum* allot_bignum(bignum_length_type length, int negative_p);
+ bignum* allot_bignum_zeroed(bignum_length_type length, int negative_p);
+ bignum* bignum_shorten_length(bignum* bignum, bignum_length_type length);
+ bignum* bignum_trim(bignum* bignum);
+ bignum* bignum_new_sign(bignum* x, int negative_p);
+ bignum* bignum_maybe_new_sign(bignum* x, int negative_p);
+ void bignum_destructive_copy(bignum* source, bignum* target);
+ bignum* bignum_bitwise_not(bignum* x);
+ bignum* bignum_arithmetic_shift(bignum* arg1, fixnum n);
+ bignum* bignum_bitwise_and(bignum* arg1, bignum* arg2);
+ bignum* bignum_bitwise_ior(bignum* arg1, bignum* arg2);
+ bignum* bignum_bitwise_xor(bignum* arg1, bignum* arg2);
+ bignum* bignum_magnitude_ash(bignum* arg1, fixnum n);
+ bignum* bignum_pospos_bitwise_op(int op, bignum* arg1, bignum* arg2);
+ bignum* bignum_posneg_bitwise_op(int op, bignum* arg1, bignum* arg2);
+ bignum* bignum_negneg_bitwise_op(int op, bignum* arg1, bignum* arg2);
+ void bignum_negate_magnitude(bignum* arg);
+ bignum* bignum_integer_length(bignum* x);
+ int bignum_logbitp(int shift, bignum* arg);
+ int bignum_unsigned_logbitp(int shift, bignum* bignum);
+ bignum* bignum_gcd(bignum* a, bignum* b);
+
+ //data heap
+ void init_card_decks();
+ void set_data_heap(data_heap* data_);
+ void init_data_heap(cell young_size, cell aging_size, cell tenured_size);
+ void primitive_size();
+ data_heap_room data_room();
+ void primitive_data_room();
+ void begin_scan();
+ void end_scan();
+ cell instances(cell type);
+ void primitive_all_instances();
+
+ template <typename Generation, typename Iterator>
+ inline void each_object(Generation* gen, Iterator& iterator) {
+ cell obj = gen->first_object();
+ while (obj) {
+ iterator((object*)obj);
+ obj = gen->next_object_after(obj);
+ }
+ }
+
+ template <typename Iterator> inline void each_object(Iterator& iterator) {
+ gc_off = true;
+
+ each_object(data->tenured, iterator);
+ each_object(data->aging, iterator);
+ each_object(data->nursery, iterator);
+
+ gc_off = false;
+ }
+
+ /* the write barrier must be called any time we are potentially storing a
+ pointer from an older generation to a younger one */
+ inline void write_barrier(cell* slot_ptr) {
+ *(char*)(cards_offset + ((cell) slot_ptr >> card_bits)) = card_mark_mask;
+ *(char*)(decks_offset + ((cell) slot_ptr >> deck_bits)) = card_mark_mask;
+ }
+
+ inline void write_barrier(object* obj, cell size) {
+ cell start = (cell) obj & (~card_size + 1);
+ cell end = ((cell) obj + size + card_size - 1) & (~card_size + 1);
+
+ for (cell offset = start; offset < end; offset += card_size)
+ write_barrier((cell*)offset);
+ }
+
+ // data heap checker
+ void check_data_heap();
+
+ // gc
+ void end_gc();
+ void set_current_gc_op(gc_op op);
+ void start_gc_again();
+ void update_code_heap_for_minor_gc(std::set<code_block*>* remembered_set);
+ void collect_nursery();
+ void collect_aging();
+ void collect_to_tenured();
+ void update_code_roots_for_sweep();
+ void update_code_roots_for_compaction();
+ void collect_mark_impl(bool trace_contexts_p);
+ void collect_sweep_impl();
+ void collect_full(bool trace_contexts_p);
+ void collect_compact_impl(bool trace_contexts_p);
+ void collect_compact_code_impl(bool trace_contexts_p);
+ void collect_compact(bool trace_contexts_p);
+ void collect_growing_heap(cell requested_size, bool trace_contexts_p);
+ void gc(gc_op op, cell requested_size, bool trace_contexts_p);
+ void scrub_context(context* ctx);
+ void scrub_contexts();
+ void primitive_minor_gc();
+ void primitive_full_gc();
+ void primitive_compact_gc();
+ void primitive_enable_gc_events();
+ void primitive_disable_gc_events();
+ object* allot_object(cell type, cell size);
+ object* allot_large_object(cell type, cell size);
+
+ /* Allocates memory */
+ template <typename Type> Type* allot(cell size) {
+ return (Type*)allot_object(Type::type_number, size);
+ }
+
+ inline void check_data_pointer(object* pointer) {
+#ifdef FACTOR_DEBUG
+ if (!(current_gc && current_gc->op == collect_growing_heap_op))
+ FACTOR_ASSERT(data->seg->in_segment_p((cell) pointer));
+#endif
+ }
+
+ // generic arrays
+ template <typename Array> Array* allot_uninitialized_array(cell capacity);
+ template <typename Array>
+ bool reallot_array_in_place_p(Array* array, cell capacity);
+ template <typename Array> Array* reallot_array(Array* array_, cell capacity);
+
+ // debug
+ void print_chars(string* str);
+ void print_word(word* word, cell nesting);
+ void print_factor_string(string* str);
+ void print_array(array* array, cell nesting);
+ void print_byte_array(byte_array* array, cell nesting);
+ void print_tuple(tuple* tuple, cell nesting);
+ void print_alien(alien* alien, cell nesting);
+ void print_nested_obj(cell obj, fixnum nesting);
+ void print_obj(cell obj);
+ void print_objects(cell* start, cell* end);
+ void print_datastack();
+ void print_retainstack();
+ void print_callstack();
+ void print_callstack_object(callstack* obj);
+ void dump_cell(cell x);
+ void dump_memory(cell from, cell to);
+ template <typename Generation>
+ void dump_generation(const char* name, Generation* gen);
+ void dump_generations();
+ void dump_objects(cell type);
+ void dump_edges();
+ void find_data_references(cell look_for_);
+ void dump_code_heap();
+ void factorbug_usage(bool advanced_p);
+ void factorbug();
+ void primitive_die();
+
+ // arrays
+ inline void set_array_nth(array* array, cell slot, cell value);
+ array* allot_array(cell capacity, cell fill_);
+ void primitive_array();
+ cell allot_array_1(cell obj_);
+ cell allot_array_2(cell v1_, cell v2_);
+ cell allot_array_4(cell v1_, cell v2_, cell v3_, cell v4_);
+ void primitive_resize_array();
+ cell std_vector_to_array(std::vector<cell>& elements);
+
+ // strings
+ string* allot_string_internal(cell capacity);
+ void fill_string(string* str_, cell start, cell capacity, cell fill);
+ string* allot_string(cell capacity, cell fill);
+ void primitive_string();
+ bool reallot_string_in_place_p(string* str, cell capacity);
+ string* reallot_string(string* str_, cell capacity);
+ void primitive_resize_string();
+ void primitive_set_string_nth_fast();
+
+ // booleans
+ cell tag_boolean(cell untagged) {
+ return (untagged ? true_object : false_object);
+ }
+
+ // byte arrays
+ byte_array* allot_byte_array(cell size);
+ void primitive_byte_array();
+ void primitive_uninitialized_byte_array();
+ void primitive_resize_byte_array();
+
+ template <typename Type> byte_array* byte_array_from_value(Type* value);
+
+ // tuples
+ void primitive_tuple();
+ void primitive_tuple_boa();
+
+ // words
+ word* allot_word(cell name_, cell vocab_, cell hashcode_);
+ void primitive_word();
+ void primitive_word_code();
+ void primitive_optimized_p();
+ void primitive_wrapper();
+ void jit_compile_word(cell word_, cell def_, bool relocating);
+ cell find_all_words();
+ void compile_all_words();
+
+ // math
+ void primitive_bignum_to_fixnum();
+ void primitive_float_to_fixnum();
+ void primitive_fixnum_divint();
+ void primitive_fixnum_divmod();
+ bignum* fixnum_to_bignum(fixnum);
+ bignum* cell_to_bignum(cell);
+ bignum* long_long_to_bignum(s64 n);
+ bignum* ulong_long_to_bignum(u64 n);
+ inline fixnum sign_mask(fixnum x);
+ inline fixnum branchless_max(fixnum x, fixnum y);
+ inline fixnum branchless_abs(fixnum x);
+ void primitive_fixnum_shift();
+ void primitive_fixnum_to_bignum();
+ void primitive_float_to_bignum();
+ void primitive_bignum_eq();
+ void primitive_bignum_add();
+ void primitive_bignum_subtract();
+ void primitive_bignum_multiply();
+ void primitive_bignum_divint();
+ void primitive_bignum_divmod();
+ void primitive_bignum_mod();
+ void primitive_bignum_gcd();
+ void primitive_bignum_and();
+ void primitive_bignum_or();
+ void primitive_bignum_xor();
+ void primitive_bignum_shift();
+ void primitive_bignum_less();
+ void primitive_bignum_lesseq();
+ void primitive_bignum_greater();
+ void primitive_bignum_greatereq();
+ void primitive_bignum_not();
+ void primitive_bignum_bitp();
+ void primitive_bignum_log2();
+ inline cell unbox_array_size();
+ cell unbox_array_size_slow();
+ void primitive_fixnum_to_float();
+ void primitive_format_float();
+ void primitive_float_eq();
+ void primitive_float_add();
+ void primitive_float_subtract();
+ void primitive_float_multiply();
+ void primitive_float_divfloat();
+ void primitive_float_less();
+ void primitive_float_lesseq();
+ void primitive_float_greater();
+ void primitive_float_greatereq();
+ void primitive_float_bits();
+ void primitive_bits_float();
+ void primitive_double_bits();
+ void primitive_bits_double();
+ fixnum to_fixnum(cell tagged);
+ cell to_cell(cell tagged);
+ cell from_signed_8(s64 n);
+ s64 to_signed_8(cell obj);
+ cell from_unsigned_8(u64 n);
+ u64 to_unsigned_8(cell obj);
+ float to_float(cell value);
+ double to_double(cell value);
+ inline void overflow_fixnum_add(fixnum x, fixnum y);
+ inline void overflow_fixnum_subtract(fixnum x, fixnum y);
+ inline void overflow_fixnum_multiply(fixnum x, fixnum y);
+ inline cell from_signed_cell(fixnum x);
+ inline cell from_unsigned_cell(cell x);
+ inline cell allot_float(double n);
+ inline bignum* float_to_bignum(cell tagged);
+ inline double untag_float(cell tagged);
+ inline double untag_float_check(cell tagged);
+ inline fixnum float_to_fixnum(cell tagged);
+ inline double fixnum_to_float(cell tagged);
+
+ // tagged
+ template <typename Type> Type* untag_check(cell value);
+
+ // io
+ void init_c_io();
+ void io_error();
+ FILE* safe_fopen(char* filename, char* mode);
+ int safe_fgetc(FILE* stream);
+ size_t safe_fread(void* ptr, size_t size, size_t nitems, FILE* stream);
+ void safe_fputc(int c, FILE* stream);
+ size_t safe_fwrite(void* ptr, size_t size, size_t nitems, FILE* stream);
+ int safe_ftell(FILE* stream);
+ void safe_fseek(FILE* stream, off_t offset, int whence);
+ void safe_fflush(FILE* stream);
+ void safe_fclose(FILE* stream);
+ void primitive_fopen();
+ FILE* pop_file_handle();
+ FILE* peek_file_handle();
+ void primitive_fgetc();
+ void primitive_fread();
+ void primitive_fputc();
+ void primitive_fwrite();
+ void primitive_ftell();
+ void primitive_fseek();
+ void primitive_fflush();
+ void primitive_fclose();
+
+ // code_block
+ cell compute_entry_point_address(cell obj);
+ cell compute_entry_point_pic_address(word* w, cell tagged_quot);
+ cell compute_entry_point_pic_address(cell w_);
+ cell compute_entry_point_pic_tail_address(cell w_);
+ cell code_block_owner(code_block* compiled);
+ void update_word_references(code_block* compiled, bool reset_inline_caches);
+ void undefined_symbol();
+ cell compute_dlsym_address(array* literals, cell index);
+#ifdef FACTOR_PPC
+ cell compute_dlsym_toc_address(array* literals, cell index);
+#endif
+ cell compute_vm_address(cell arg);
+ void store_external_address(instruction_operand op);
+ cell compute_here_address(cell arg, cell offset, code_block* compiled);
+ void initialize_code_block(code_block* compiled, cell literals);
+ void initialize_code_block(code_block* compiled);
+ void fixup_labels(array* labels, code_block* compiled);
+ code_block* allot_code_block(cell size, code_block_type type);
+ code_block* add_code_block(code_block_type type, cell code_, cell labels_,
+ cell owner_, cell relocation_, cell parameters_,
+ cell literals_, cell frame_size_untagged);
+
+ //code heap
+ inline void check_code_pointer(cell ptr) {}
+
+ template <typename Iterator> void each_code_block(Iterator& iter) {
+ code->allocator->iterate(iter);
+ }
+
+ void init_code_heap(cell size);
+ void update_code_heap_words(bool reset_inline_caches);
+ void initialize_code_blocks();
+ void primitive_modify_code_heap();
+ code_heap_room code_room();
+ void primitive_code_room();
+ void primitive_strip_stack_traces();
+ cell code_blocks();
+ void primitive_code_blocks();
+
+ // callbacks
+ void init_callbacks(cell size);
+ void primitive_callback();
+
+ // image
+ void init_objects(image_header* h);
+ void load_data_heap(FILE* file, image_header* h, vm_parameters* p);
+ void load_code_heap(FILE* file, image_header* h, vm_parameters* p);
+ bool save_image(const vm_char* saving_filename, const vm_char* filename);
+ void primitive_save_image();
+ void primitive_save_image_and_exit();
+ void fixup_data(cell data_offset, cell code_offset);
+ void fixup_code(cell data_offset, cell code_offset);
+ FILE* open_image(vm_parameters* p);
+ void load_image(vm_parameters* p);
+ bool read_embedded_image_footer(FILE* file, embedded_image_footer* footer);
+ bool embedded_image_p();
+
+ template <typename Iterator, typename Fixup>
+ void iterate_callstack_object(callstack* stack_, Iterator& iterator,
+ Fixup& fixup);
+ template <typename Iterator>
+ void iterate_callstack_object(callstack* stack_, Iterator& iterator);
+
+ callstack* allot_callstack(cell size);
+ void* second_from_top_stack_frame(context* ctx);
+ cell capture_callstack(context* ctx);
+ void primitive_callstack();
+ void primitive_callstack_for();
+ void* frame_predecessor(void* frame);
+ void primitive_callstack_to_array();
+ void primitive_innermost_stack_frame_executing();
+ void primitive_innermost_stack_frame_scan();
+ void primitive_set_innermost_stack_frame_quot();
+ void primitive_callstack_bounds();
+
+ template <typename Iterator, typename Fixup>
+ void iterate_callstack(context* ctx, Iterator& iterator, Fixup& fixup);
+ template <typename Iterator>
+ void iterate_callstack(context* ctx, Iterator& iterator);
+
+ // cpu-*
+ void dispatch_signal_handler(cell* sp, cell* pc, cell newpc);
+
+ // alien
+ char* pinned_alien_offset(cell obj);
+ cell allot_alien(cell delegate_, cell displacement);
+ cell allot_alien(void* address);
+ void primitive_displaced_alien();
+ void primitive_alien_address();
+ void* alien_pointer();
+ void primitive_dlopen();
+ void primitive_dlsym();
+ void primitive_dlsym_raw();
+ void primitive_dlclose();
+ void primitive_dll_validp();
+ char* alien_offset(cell obj);
+
+ // quotations
+ void primitive_jit_compile();
+ void* lazy_jit_compile_entry_point();
+ void primitive_array_to_quotation();
+ void primitive_quotation_code();
+ code_block* jit_compile_quot(cell owner_, cell quot_, bool relocating);
+ void jit_compile_quot(cell quot_, bool relocating);
+ fixnum quot_code_offset_to_scan(cell quot_, cell offset);
+ cell lazy_jit_compile(cell quot);
+ bool quot_compiled_p(quotation* quot);
+ void primitive_quot_compiled_p();
+ cell find_all_quotations();
+ void initialize_all_quotations();
+
+ // dispatch
+ cell search_lookup_alist(cell table, cell klass);
+ cell search_lookup_hash(cell table, cell klass, cell hashcode);
+ cell nth_superclass(tuple_layout* layout, fixnum echelon);
+ cell nth_hashcode(tuple_layout* layout, fixnum echelon);
+ cell lookup_tuple_method(cell obj, cell methods);
+ cell lookup_method(cell obj, cell methods);
+ void primitive_lookup_method();
+ cell object_class(cell obj);
+ cell method_cache_hashcode(cell klass, array* array);
+ void update_method_cache(cell cache, cell klass, cell method);
+ void primitive_mega_cache_miss();
+ void primitive_reset_dispatch_stats();
+ void primitive_dispatch_stats();
+
+ // inline cache
+ void init_inline_caching(int max_size);
+ void deallocate_inline_cache(cell return_address);
+ cell determine_inline_cache_type(array* cache_entries);
+ void update_pic_count(cell type);
+ code_block* compile_inline_cache(fixnum index, cell generic_word_,
+ cell methods_, cell cache_entries_,
+ bool tail_call_p);
+ void* megamorphic_call_stub(cell generic_word);
+ cell inline_cache_size(cell cache_entries);
+ cell add_inline_cache_entry(cell cache_entries_, cell klass_, cell method_);
+ void update_pic_transitions(cell pic_size);
+ void* inline_cache_miss(cell return_address);
+
+ // entry points
+ void c_to_factor(cell quot);
+ template <typename Func> Func get_entry_point(cell n);
+ void unwind_native_frames(cell quot, void* to);
+ cell get_fpu_state();
+ void set_fpu_state(cell state);
+
+ // factor
+ void default_parameters(vm_parameters* p);
+ bool factor_arg(const vm_char* str, const vm_char* arg, cell* value);
+ void init_parameters_from_args(vm_parameters* p, int argc, vm_char** argv);
+ void prepare_boot_image();
+ void init_factor(vm_parameters* p);
+ void pass_args_to_factor(int argc, vm_char** argv);
+ void start_factor(vm_parameters* p);
+ void stop_factor();
+ void start_embedded_factor(vm_parameters* p);
+ void start_standalone_factor(int argc, vm_char** argv);
+ char* factor_eval_string(char* string);
+ void factor_eval_free(char* result);
+ void factor_yield();
+ void factor_sleep(long us);
+
+ // os-*
+ void primitive_existsp();
+ void move_file(const vm_char* path1, const vm_char* path2);
+ void init_ffi();
+ void ffi_dlopen(dll* dll);
+ void* ffi_dlsym(dll* dll, symbol_char* symbol);
+ void* ffi_dlsym_raw(dll* dll, symbol_char* symbol);
#ifdef FACTOR_PPC
- cell compute_dlsym_toc_address(array *literals, cell index);
+ void* ffi_dlsym_toc(dll* dll, symbol_char* symbol);
+#endif
+ void ffi_dlclose(dll* dll);
+ void c_to_factor_toplevel(cell quot);
+ void init_signals();
+ void start_sampling_profiler_timer();
+ void end_sampling_profiler_timer();
+ static void open_console();
+ static void close_console();
+ static void lock_console();
+ static void unlock_console();
+ static void ignore_ctrl_c();
+ static void handle_ctrl_c();
+
+// os-windows
+#if defined(WINDOWS)
+ HANDLE sampler_thread;
+ void sampler_thread_loop();
+
+ const vm_char* vm_executable_path();
+ const vm_char* default_image_path();
+ void windows_image_path(vm_char* full_path, vm_char* temp_path,
+ unsigned int length);
+ BOOL windows_stat(vm_char* path);
+
+ LONG exception_handler(PEXCEPTION_RECORD e, void* frame, PCONTEXT c,
+ void* dispatch);
+
+#else // UNIX
+ void dispatch_signal(void* uap, void(handler)());
+ void unix_init_signals();
#endif
- cell compute_vm_address(cell arg);
- void store_external_address(instruction_operand op);
- cell compute_here_address(cell arg, cell offset, code_block *compiled);
- void initialize_code_block(code_block *compiled, cell literals);
- void initialize_code_block(code_block *compiled);
- void fixup_labels(array *labels, code_block *compiled);
- code_block *allot_code_block(cell size, code_block_type type);
- code_block *add_code_block(code_block_type type, cell code_, cell labels_,
- cell owner_, cell relocation_, cell parameters_, cell literals_,
- cell frame_size_untagged);
-
- //code heap
- inline void check_code_pointer(cell ptr) { }
-
- template<typename Iterator> void each_code_block(Iterator &iter)
- {
- code->allocator->iterate(iter);
- }
-
- void init_code_heap(cell size);
- void update_code_heap_words(bool reset_inline_caches);
- void initialize_code_blocks();
- void primitive_modify_code_heap();
- code_heap_room code_room();
- void primitive_code_room();
- void primitive_strip_stack_traces();
- cell code_blocks();
- void primitive_code_blocks();
-
- // callbacks
- void init_callbacks(cell size);
- void primitive_callback();
-
- // image
- void init_objects(image_header *h);
- void load_data_heap(FILE *file, image_header *h, vm_parameters *p);
- void load_code_heap(FILE *file, image_header *h, vm_parameters *p);
- bool save_image(const vm_char *saving_filename, const vm_char *filename);
- void primitive_save_image();
- void primitive_save_image_and_exit();
- void fixup_data(cell data_offset, cell code_offset);
- void fixup_code(cell data_offset, cell code_offset);
- FILE *open_image(vm_parameters *p);
- void load_image(vm_parameters *p);
- bool read_embedded_image_footer(FILE *file, embedded_image_footer *footer);
- bool embedded_image_p();
-
- template<typename Iterator, typename Fixup>
- void iterate_callstack_object(callstack *stack_, Iterator &iterator,
- Fixup &fixup);
- template<typename Iterator>
- void iterate_callstack_object(callstack *stack_, Iterator &iterator);
-
- callstack *allot_callstack(cell size);
- void *second_from_top_stack_frame(context *ctx);
- cell capture_callstack(context *ctx);
- void primitive_callstack();
- void primitive_callstack_for();
- void *frame_predecessor(void *frame);
- void primitive_callstack_to_array();
- void primitive_innermost_stack_frame_executing();
- void primitive_innermost_stack_frame_scan();
- void primitive_set_innermost_stack_frame_quot();
- void primitive_callstack_bounds();
-
- template<typename Iterator, typename Fixup>
- void iterate_callstack(context *ctx, Iterator &iterator, Fixup &fixup);
- template<typename Iterator>
- void iterate_callstack(context *ctx, Iterator &iterator);
-
- // cpu-*
- void dispatch_signal_handler(cell *sp, cell *pc, cell newpc);
-
- // alien
- char *pinned_alien_offset(cell obj);
- cell allot_alien(cell delegate_, cell displacement);
- cell allot_alien(void *address);
- void primitive_displaced_alien();
- void primitive_alien_address();
- void *alien_pointer();
- void primitive_dlopen();
- void primitive_dlsym();
- void primitive_dlsym_raw();
- void primitive_dlclose();
- void primitive_dll_validp();
- char *alien_offset(cell obj);
-
- // quotations
- void primitive_jit_compile();
- void *lazy_jit_compile_entry_point();
- void primitive_array_to_quotation();
- void primitive_quotation_code();
- code_block *jit_compile_quot(cell owner_, cell quot_, bool relocating);
- void jit_compile_quot(cell quot_, bool relocating);
- fixnum quot_code_offset_to_scan(cell quot_, cell offset);
- cell lazy_jit_compile(cell quot);
- bool quot_compiled_p(quotation *quot);
- void primitive_quot_compiled_p();
- cell find_all_quotations();
- void initialize_all_quotations();
-
- // dispatch
- cell search_lookup_alist(cell table, cell klass);
- cell search_lookup_hash(cell table, cell klass, cell hashcode);
- cell nth_superclass(tuple_layout *layout, fixnum echelon);
- cell nth_hashcode(tuple_layout *layout, fixnum echelon);
- cell lookup_tuple_method(cell obj, cell methods);
- cell lookup_method(cell obj, cell methods);
- void primitive_lookup_method();
- cell object_class(cell obj);
- cell method_cache_hashcode(cell klass, array *array);
- void update_method_cache(cell cache, cell klass, cell method);
- void primitive_mega_cache_miss();
- void primitive_reset_dispatch_stats();
- void primitive_dispatch_stats();
-
- // inline cache
- void init_inline_caching(int max_size);
- void deallocate_inline_cache(cell return_address);
- cell determine_inline_cache_type(array *cache_entries);
- void update_pic_count(cell type);
- code_block *compile_inline_cache(fixnum index,cell generic_word_,cell methods_,cell cache_entries_,bool tail_call_p);
- void *megamorphic_call_stub(cell generic_word);
- cell inline_cache_size(cell cache_entries);
- cell add_inline_cache_entry(cell cache_entries_, cell klass_, cell method_);
- void update_pic_transitions(cell pic_size);
- void *inline_cache_miss(cell return_address);
-
- // entry points
- void c_to_factor(cell quot);
- template<typename Func> Func get_entry_point(cell n);
- void unwind_native_frames(cell quot, void *to);
- cell get_fpu_state();
- void set_fpu_state(cell state);
-
- // factor
- void default_parameters(vm_parameters *p);
- bool factor_arg(const vm_char *str, const vm_char *arg, cell *value);
- void init_parameters_from_args(vm_parameters *p, int argc, vm_char **argv);
- void prepare_boot_image();
- void init_factor(vm_parameters *p);
- void pass_args_to_factor(int argc, vm_char **argv);
- void start_factor(vm_parameters *p);
- void stop_factor();
- void start_embedded_factor(vm_parameters *p);
- void start_standalone_factor(int argc, vm_char **argv);
- char *factor_eval_string(char *string);
- void factor_eval_free(char *result);
- void factor_yield();
- void factor_sleep(long us);
-
- // os-*
- void primitive_existsp();
- void move_file(const vm_char *path1, const vm_char *path2);
- void init_ffi();
- void ffi_dlopen(dll *dll);
- void *ffi_dlsym(dll *dll, symbol_char *symbol);
- void *ffi_dlsym_raw(dll *dll, symbol_char *symbol);
- #ifdef FACTOR_PPC
- void *ffi_dlsym_toc(dll *dll, symbol_char *symbol);
- #endif
- void ffi_dlclose(dll *dll);
- void c_to_factor_toplevel(cell quot);
- void init_signals();
- void start_sampling_profiler_timer();
- void end_sampling_profiler_timer();
- static void open_console();
- static void close_console();
- static void lock_console();
- static void unlock_console();
- static void ignore_ctrl_c();
- static void handle_ctrl_c();
-
- // os-windows
- #if defined(WINDOWS)
- HANDLE sampler_thread;
- void sampler_thread_loop();
-
- const vm_char *vm_executable_path();
- const vm_char *default_image_path();
- void windows_image_path(vm_char *full_path, vm_char *temp_path, unsigned int length);
- BOOL windows_stat(vm_char *path);
-
- LONG exception_handler(PEXCEPTION_RECORD e, void *frame, PCONTEXT c, void *dispatch);
-
- #else // UNIX
- void dispatch_signal(void *uap, void (handler)());
- void unix_init_signals();
- #endif
-
- #ifdef __APPLE__
- void call_fault_handler(exception_type_t exception, exception_data_type_t code, MACH_EXC_STATE_TYPE *exc_state, MACH_THREAD_STATE_TYPE *thread_state, MACH_FLOAT_STATE_TYPE *float_state);
- #endif
-
- factor_vm(THREADHANDLE thread_id);
- ~factor_vm();
+
+#ifdef __APPLE__
+ void call_fault_handler(exception_type_t exception,
+ exception_data_type_t code,
+ MACH_EXC_STATE_TYPE* exc_state,
+ MACH_THREAD_STATE_TYPE* thread_state,
+ MACH_FLOAT_STATE_TYPE* float_state);
+#endif
+
+ factor_vm(THREADHANDLE thread_id);
+ ~factor_vm();
};
}
projects / factor.git / commitdiff