struct code_root;
struct factor_vm {
- /*
- vvvvvv
- THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR. See:
- basis/vm/vm.factor
- basis/compiler/constants/constants.factor */
+ //
+ // vvvvvv
+ // THESE FIELDS ARE ACCESSED DIRECTLY FROM FACTOR. See:
+ // basis/vm/vm.factor
+ // basis/compiler/constants/constants.factor
- /* Current context */
+ // Current context
context* ctx;
- /* Spare context -- for callbacks */
+ // Spare context -- for callbacks
context* spare_ctx;
- /* New objects are allocated here, use the data->nursery reference
- instead from c++ code. */
+ // New objects are allocated here, use the data->nursery reference
+ // instead from c++ code.
bump_allocator nursery;
- /* Add this to a shifted address to compute write barrier offsets */
+ // 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 */
+ // 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
+ bool faulting_p;
- /* Various special objects, accessed by special-object and
- set-special-object primitives */
+ // Various special objects, accessed by special-object and
+ // set-special-object primitives
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 */
+ // Handle to the main thread we run in
THREADHANDLE thread;
- /* Data stack and retain stack sizes */
+ // Data stack and retain stack sizes
cell datastack_size, retainstack_size, callstack_size;
- /* Stack of callback IDs */
+ // Stack of callback IDs
std::vector<int> callback_ids;
- /* Next callback ID */
+ // Next callback ID
int callback_id;
- /* List of callback function descriptors for PPC */
+ // List of callback function descriptors for PPC
std::list<void**> function_descriptors;
- /* Pooling unused contexts to make context allocation cheaper */
+ // Pooling unused contexts to make context allocation cheaper
std::list<context*> unused_contexts;
- /* Active contexts, for tracing by the GC */
+ // Active contexts, for tracing by the GC
std::set<context*> active_contexts;
- /* External entry points */
+ // External entry points
c_to_factor_func_type c_to_factor_func;
- /* Is profiling enabled? */
- volatile cell sampling_profiler_p;
+ // Is profiling enabled?
+ volatile bool sampling_profiler_p;
fixnum samples_per_second;
- /* Global variables used to pass fault handler state from signal handler
- to VM */
+ // 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 */
+ // Pipe used to notify Factor multiplexer of signals
int signal_pipe_input, signal_pipe_output;
- /* State kept by the sampling profiler */
+ // State kept by the sampling profiler
std::vector<profiling_sample> samples;
- std::vector<cell> sample_callstacks;
- volatile profiling_sample_count sample_counts;
+ volatile profiling_sample current_sample;
- /* GC is off during heap walking */
+ // GC is off during heap walking
bool gc_off;
- /* Data heap */
+ // Data heap
data_heap* data;
- /* Code heap */
+ // Code heap
code_heap* code;
- /* Pinned callback stubs */
+ // Pinned callback stubs
callback_heap* callbacks;
- /* Only set if we're performing a GC */
+ // Only set if we're performing a GC
gc_state* current_gc;
- volatile cell current_gc_p;
+ volatile bool current_gc_p;
- /* Set if we're in the jit */
+ // Set if we're in the jit
volatile fixnum current_jit_count;
- /* Mark stack used for mark & sweep GC */
+ // Mark stack used for mark & sweep GC
std::vector<cell> mark_stack;
- /* If not NULL, we push GC events here */
+ // 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 */
+ // 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<cell*> data_roots;
std::vector<code_root*> code_roots;
- /* Debugger */
+ // Debugger
bool fep_p;
bool fep_help_was_shown;
bool fep_disabled;
bool full_output;
- /* Method dispatch statistics */
+ // Method dispatch statistics
dispatch_statistics dispatch_stats;
- /* Number of entries in a polymorphic inline cache */
+ // Number of entries in a polymorphic inline cache
cell max_pic_size;
- /* Incrementing object counter for identity hashing */
+ // Incrementing object counter for identity hashing
cell object_counter;
- /* Sanity check to ensure that monotonic counter doesn't decrease */
+ // Sanity check to ensure that monotonic counter doesn't decrease
uint64_t last_nano_count;
- /* Stack for signal handlers, only used on Unix */
+ // Stack for signal handlers, only used on Unix
segment* signal_callstack_seg;
- /* Are we already handling a fault? Used to catch double memory faults */
+ // Are we already handling a fault? Used to catch double memory faults
static bool fatal_erroring_p;
- /* Two fep_p variants, one might be redundant. */
- volatile cell safepoint_fep_p;
+ // Two fep_p variants, one might be redundant.
+ volatile bool safepoint_fep_p;
- /* contexts */
+ // Allow Ctrl-Break a busy loop in the Listener, only used on Windows
+ volatile bool stop_on_ctrl_break;
+
+ // contexts
context* new_context();
void init_context(context* ctx);
void delete_context();
- void init_contexts(cell datastack_size_, cell retainstack_size_,
- cell callstack_size_);
cell begin_callback(cell quot);
void end_callback();
void primitive_current_callback();
void primitive_datastack_for();
cell retainstack_to_array(context* ctx);
void primitive_retainstack_for();
- cell array_to_stack(array* array, cell bottom);
void primitive_set_datastack();
void primitive_set_retainstack();
void primitive_check_datastack();
void primitive_load_locals();
- /* run */
+ // run
void primitive_exit();
void primitive_nano_count();
void primitive_sleep();
void primitive_set_slot();
- /* objects */
+ // objects
void primitive_special_object();
void primitive_set_special_object();
void primitive_identity_hashcode();
void primitive_compute_identity_hashcode();
- cell clone_object(cell obj_);
void primitive_clone();
void primitive_become();
- /* sampling_profiler */
+ // sampling_profiler
void record_sample(bool prolog_p);
void start_sampling_profiler(fixnum rate);
void end_sampling_profiler();
- void set_sampling_profiler(fixnum rate);
- void primitive_sampling_profiler();
+ void set_profiling(fixnum rate);
+ void primitive_set_profiling();
void primitive_get_samples();
+ array* allot_growarr();
+ void growarr_add(array *growarr_, cell value);
- /* errors */
+ // 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 set_memory_protection_error(cell fault_addr, cell fault_pc);
void divide_by_zero_error();
- void primitive_unimplemented();
- /* bignum */
+ // 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);
void bignum_destructive_unnormalization(bignum* bn, 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* q); // return value
bignum_digit_type bignum_digit_divide_subtract(bignum_digit_type v1,
bignum_digit_type v2,
bignum_digit_type guess,
int bignum_unsigned_logbitp(int shift, bignum* bn);
bignum* bignum_gcd(bignum* a_, bignum* b_);
- /* data heap */
+ //data heap
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();
template <typename Iterator> inline void each_object(Iterator& iterator) {
- /* The nursery can't be iterated because there may be gaps between
- the objects (see factor_vm::reallot_array) so we require it to
- be empty first. */
+ // The nursery can't be iterated because there may be gaps between
+ // the objects (see factor_vm::reallot_array) so we require it to
+ // be empty first.
FACTOR_ASSERT(data->nursery->occupied_space() == 0);
gc_off = true;
each_object(each_object_func);
}
- /* the write barrier must be called any time we are potentially storing a
- pointer from an older generation to a younger one */
+ // 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) {
*(unsigned char*)(cards_offset + ((cell)slot_ptr >> card_bits)) = card_mark_mask;
*(unsigned char*)(decks_offset + ((cell)slot_ptr >> deck_bits)) = card_mark_mask;
write_barrier((cell*)offset);
}
- /* data heap checker */
+ // data heap checker
void check_data_heap();
- /* gc */
- void end_gc();
+ // gc
void set_current_gc_op(gc_op op);
void start_gc_again();
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();
void collect_sweep_impl();
void collect_full();
void collect_compact_impl();
void collect_compact();
- void collect_growing_heap(cell requested_size);
+ void collect_growing_data_heap(cell requested_size);
void gc(gc_op op, cell requested_size);
void primitive_minor_gc();
void primitive_full_gc();
object* allot_object(cell type, cell size);
object* allot_large_object(cell type, cell size);
- /* Allocates memory */
+ // Allocates memory
template <typename Type> Type* allot(cell size) {
return (Type*)allot_object(Type::type_number, size);
}
- /* generic arrays */
+ // 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 */
+ // debug
void print_chars(ostream& out, string* str);
void print_word(ostream& out, word* word, cell nesting);
void print_factor_string(ostream& out, string* str);
void factorbug_usage(bool advanced_p);
void factorbug();
void primitive_die();
+ void primitive_enable_ctrl_break();
+ void primitive_disable_ctrl_break();
- /* arrays */
+ // arrays
inline void set_array_nth(array* array, cell slot, cell value);
array* allot_array(cell capacity, cell fill_);
void primitive_array();
void primitive_resize_array();
cell std_vector_to_array(std::vector<cell>& elements);
- /* strings */
+ // 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_resize_string();
void primitive_set_string_nth_fast();
- /* booleans */
+ // booleans
cell tag_boolean(cell untagged) {
return untagged ? special_objects[OBJ_CANONICAL_TRUE] : false_object;
}
- /* byte arrays */
+ // byte arrays
byte_array* allot_byte_array(cell size);
void primitive_byte_array();
void primitive_uninitialized_byte_array();
template <typename Type> byte_array* byte_array_from_value(Type* value);
- /* tuples */
+ // tuples
void primitive_tuple();
void primitive_tuple_boa();
- /* words */
+ // words
word* allot_word(cell name_, cell vocab_, cell hashcode_);
void primitive_word();
void primitive_word_code();
void primitive_wrapper();
void jit_compile_word(cell word_, cell def_, bool relocating);
- /* math */
+ // math
void primitive_bignum_to_fixnum();
void primitive_bignum_to_fixnum_strict();
void primitive_float_to_fixnum();
inline fixnum float_to_fixnum(cell tagged);
inline double fixnum_to_float(cell tagged);
- /* tagged */
+ // tagged
template <typename Type> void check_tagged(tagged<Type> t) {
if (!t.type_p())
type_error(Type::type_number, t.value_);
return t.untagged();
}
- /* io */
- void init_c_io();
+ // io
void io_error_if_not_EINTR();
FILE* safe_fopen(char* filename, const 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);
+ off_t safe_ftell(FILE* stream);
void safe_fseek(FILE* stream, off_t offset, int whence);
void safe_fflush(FILE* stream);
void primitive_fopen();
void primitive_fflush();
void primitive_fclose();
- /* code_block */
+ // code_block
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 owner_, cell relocation_, cell parameters_,
cell literals_, cell frame_size_untagged);
- /* code heap */
+ //code heap
template <typename Iterator> void each_code_block(Iterator& iter) {
- code->allocator->iterate(iter);
+ code->allocator->iterate(iter, no_fixup());
}
void update_code_heap_words(bool reset_inline_caches);
- void initialize_code_blocks();
void primitive_modify_code_heap();
void primitive_code_room();
void primitive_strip_stack_traces();
void primitive_code_blocks();
- /* callbacks */
+ // callbacks
void primitive_free_callback();
void primitive_callback();
void primitive_callback_room();
- /* image */
+ // image
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 fixup_heaps(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>
void iterate_callstack(context* ctx, Iterator& iterator);
- /* cpu-* */
+ // cpu-*
void dispatch_signal_handler(cell* sp, cell* pc, cell newpc);
#if defined(FACTOR_X86) || defined(FACTOR_64)
void dispatch_non_resumable_signal(cell* sp, cell* pc,
void dispatch_resumable_signal(cell* sp, cell* pc, cell handler);
#endif
- /* alien */
+ // alien
char* pinned_alien_offset(cell obj);
cell allot_alien(cell delegate_, cell displacement);
cell allot_alien(cell address);
void primitive_dll_validp();
char* alien_offset(cell obj);
- /* quotations */
+ // quotations
void primitive_jit_compile();
cell lazy_jit_compile_entry_point();
void primitive_array_to_quotation();
bool quotation_compiled_p(quotation* quot);
void primitive_quotation_compiled_p();
- /* dispatch */
+ // dispatch
cell lookup_tuple_method(cell obj, cell methods);
cell lookup_method(cell obj, cell methods);
void primitive_lookup_method();
void primitive_reset_dispatch_stats();
void primitive_dispatch_stats();
- /* inline cache */
+ // inline cache
void deallocate_inline_cache(cell return_address);
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);
cell add_inline_cache_entry(cell cache_entries_, cell klass_, cell method_);
void update_pic_transitions(cell pic_size);
cell inline_cache_miss(cell return_address);
- /* entry points */
+ // entry points
void c_to_factor(cell quot);
void unwind_native_frames(cell quot, cell to);
cell get_fpu_state();
void set_fpu_state(cell state);
- /* safepoints */
+ // safepoints
void handle_safepoint(cell pc);
void enqueue_samples(cell samples, cell pc, bool foreign_thread_p);
void enqueue_fep();
- /* factor */
+ // factor
void prepare_boot_image();
void init_factor(vm_parameters* p);
void pass_args_to_factor(int argc, vm_char** argv);
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-* */
+ // os-*
void primitive_existsp();
void init_ffi();
void ffi_dlopen(dll* dll);
void start_sampling_profiler_timer();
void end_sampling_profiler_timer();
-/* os-windows */
+// os-windows
#if defined(WINDOWS)
+ /* Id of the main thread we run in. Used for Ctrl-Break handling. */
+ DWORD thread_id;
+
+ HANDLE ctrl_break_thread;
+
HANDLE sampler_thread;
void sampler_thread_loop();
LONG exception_handler(PEXCEPTION_RECORD e, void* frame, PCONTEXT c,
void* dispatch);
-#else /* UNIX */
+#else // UNIX
void dispatch_signal(void* uap, void(handler)());
void unix_init_signals();
#endif
projects / factor.git / blobdiff