3 // Special object count and identifiers must be kept in sync with:
4 // core/kernel/kernel.factor
5 // core/bootstrap/image/image.factor
7 static const cell special_object_count = 80;
10 OBJ_WALKER_HOOK = 3, /* non-local exit hook, used by library only */
11 OBJ_CALLCC_1, /* used to pass the value in callcc1 */
13 ERROR_HANDLER_QUOT = 5, /* quotation called when VM throws an error */
14 OBJ_ERROR, /* a marker consed onto kernel errors */
16 OBJ_CELL_SIZE = 7, /* sizeof(cell) */
17 OBJ_CPU, /* CPU architecture */
18 OBJ_OS, /* operating system name */
20 OBJ_ARGS = 10, /* command line arguments */
21 OBJ_STDIN, /* stdin FILE* handle */
22 OBJ_STDOUT, /* stdout FILE* handle */
24 OBJ_IMAGE = 13, /* image path name */
25 OBJ_EXECUTABLE, /* runtime executable path name */
27 OBJ_EMBEDDED = 15, /* are we embedded in another app? */
28 OBJ_EVAL_CALLBACK, /* used when Factor is embedded in a C app */
29 OBJ_YIELD_CALLBACK, /* used when Factor is embedded in a C app */
30 OBJ_SLEEP_CALLBACK, /* used when Factor is embedded in a C app */
32 OBJ_STARTUP_QUOT = 20, /* startup quotation */
33 OBJ_GLOBAL, /* global namespace */
34 OBJ_SHUTDOWN_QUOT, /* shutdown quotation */
36 /* Quotation compilation in quotations.c */
58 /* External entry points */
59 C_TO_FACTOR_WORD = 43,
60 LAZY_JIT_COMPILE_WORD,
61 UNWIND_NATIVE_FRAMES_WORD,
65 LEAF_SIGNAL_HANDLER_WORD,
66 FFI_SIGNAL_HANDLER_WORD,
67 FFI_LEAF_SIGNAL_HANDLER_WORD,
69 /* Incremented on every modify-code-heap call; invalidates call( inline
71 REDEFINITION_COUNTER = 52,
73 /* Callback stub generation in callbacks.c */
76 /* Polymorphic inline cache generation in inline_cache.c */
86 /* Megamorphic cache generation in dispatch.c */
91 OBJ_UNDEFINED = 65, /* default quotation for undefined words */
93 OBJ_STDERR = 66, /* stderr FILE* handle */
95 OBJ_STAGE2 = 67, /* have we bootstrapped? */
97 OBJ_CURRENT_THREAD = 68,
101 OBJ_SLEEP_QUEUE = 71,
103 OBJ_VM_COMPILER = 72, /* version string of the compiler we were built with */
105 OBJ_WAITING_CALLBACKS = 73,
107 OBJ_SIGNAL_PIPE = 74, /* file descriptor for pipe used to communicate signals
111 /* save-image-and-exit discards special objects that are filled in on startup
112 anyway, to reduce image size */
113 #define OBJ_FIRST_SAVE OBJ_STARTUP_QUOT
114 #define OBJ_LAST_SAVE OBJ_STAGE2
116 inline static bool save_special_p(cell i) {
117 return (i >= OBJ_FIRST_SAVE && i <= OBJ_LAST_SAVE);
120 template <typename Iterator> void object::each_slot(Iterator& iter) {
121 cell scan = (cell) this;
122 cell payload_start = binary_payload_start();
123 cell end = scan + payload_start;
125 scan += sizeof(cell);
129 scan += sizeof(cell);