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