-namespace factor
-{
+namespace factor {
-static const cell special_object_count = 70;
+// Special object count and identifiers must be kept in sync with:
+// core/kernel/kernel.factor
+// basis/bootstrap/image/image.factor
+
+static const cell special_object_count = 85;
enum special_object {
- OBJ_NAMESTACK, /* used by library only */
- OBJ_CATCHSTACK, /* used by library only, per-callback */
-
- OBJ_CURRENT_CALLBACK = 2, /* used by library only, per-callback */
- OBJ_WALKER_HOOK, /* non-local exit hook, used by library only */
- OBJ_CALLCC_1, /* used to pass the value in callcc1 */
-
- OBJ_BREAK = 5, /* quotation called by throw primitive */
- OBJ_ERROR, /* a marker consed onto kernel errors */
-
- OBJ_CELL_SIZE = 7, /* sizeof(cell) */
- OBJ_CPU, /* CPU architecture */
- OBJ_OS, /* operating system name */
-
- OBJ_ARGS = 10, /* command line arguments */
- OBJ_STDIN, /* stdin FILE* handle */
- OBJ_STDOUT, /* stdout FILE* handle */
-
- OBJ_IMAGE = 13, /* image path name */
- OBJ_EXECUTABLE, /* runtime executable path name */
-
- OBJ_EMBEDDED = 15, /* are we embedded in another app? */
- OBJ_EVAL_CALLBACK, /* used when Factor is embedded in a C app */
- OBJ_YIELD_CALLBACK, /* used when Factor is embedded in a C app */
- OBJ_SLEEP_CALLBACK, /* used when Factor is embedded in a C app */
-
- OBJ_COCOA_EXCEPTION = 19, /* Cocoa exception handler quotation */
-
- OBJ_BOOT = 20, /* boot quotation */
- OBJ_GLOBAL, /* global namespace */
-
- /* Quotation compilation in quotations.c */
- JIT_PROLOG = 23,
- JIT_PRIMITIVE_WORD,
- JIT_PRIMITIVE,
- JIT_WORD_JUMP,
- JIT_WORD_CALL,
- JIT_WORD_SPECIAL,
- JIT_IF_WORD,
- JIT_IF,
- JIT_EPILOG,
- JIT_RETURN,
- JIT_PROFILING,
- JIT_PUSH_IMMEDIATE,
- JIT_DIP_WORD,
- JIT_DIP,
- JIT_2DIP_WORD,
- JIT_2DIP,
- JIT_3DIP_WORD,
- JIT_3DIP,
- JIT_EXECUTE_WORD,
- JIT_EXECUTE_JUMP,
- JIT_EXECUTE_CALL,
- JIT_DECLARE_WORD,
-
- /* Callback stub generation in callbacks.c */
- CALLBACK_STUB = 45,
-
- /* Polymorphic inline cache generation in inline_cache.c */
- PIC_LOAD = 47,
- PIC_TAG,
- PIC_TUPLE,
- PIC_CHECK_TAG,
- PIC_CHECK_TUPLE,
- PIC_HIT,
- PIC_MISS_WORD,
- PIC_MISS_TAIL_WORD,
-
- /* Megamorphic cache generation in dispatch.c */
- MEGA_LOOKUP = 57,
- MEGA_LOOKUP_WORD,
- MEGA_MISS_WORD,
-
- OBJ_UNDEFINED = 60, /* default quotation for undefined words */
-
- OBJ_STDERR = 61, /* stderr FILE* handle */
-
- OBJ_STAGE2 = 62, /* have we bootstrapped? */
-
- OBJ_CURRENT_THREAD = 63,
-
- OBJ_THREADS = 64,
- OBJ_RUN_QUEUE = 65,
- OBJ_SLEEP_QUEUE = 66,
+ OBJ_WALKER_HOOK = 3, // non-local exit hook, used by library only
+ OBJ_CALLCC_1, // used to pass the value in callcc1
+
+ ERROR_HANDLER_QUOT = 5, // quotation called when VM throws an error
+
+ OBJ_CELL_SIZE = 7, // sizeof(cell)
+ OBJ_CPU, // CPU architecture
+ OBJ_OS, // operating system name
+
+ OBJ_ARGS = 10, // command line arguments
+ OBJ_STDIN, // stdin FILE* handle
+ OBJ_STDOUT, // stdout FILE* handle
+
+ OBJ_IMAGE = 13, // image path name
+ OBJ_EXECUTABLE, // runtime executable path name
+
+ OBJ_EMBEDDED = 15, // are we embedded in another app?
+ OBJ_EVAL_CALLBACK, // used when Factor is embedded in a C app
+ OBJ_YIELD_CALLBACK, // used when Factor is embedded in a C app
+ OBJ_SLEEP_CALLBACK, // used when Factor is embedded in a C app
+
+ OBJ_STARTUP_QUOT = 20, // startup quotation
+ OBJ_GLOBAL, // global namespace
+ OBJ_SHUTDOWN_QUOT, // shutdown quotation
+
+ // Quotation compilation in quotations.cpp
+ JIT_PROLOG = 23,
+ JIT_PRIMITIVE_WORD,
+ JIT_PRIMITIVE,
+ JIT_WORD_JUMP,
+ JIT_WORD_CALL,
+ JIT_IF_WORD,
+ JIT_IF,
+ JIT_SAFEPOINT,
+ JIT_EPILOG,
+ JIT_RETURN,
+ JIT_UNUSED,
+ JIT_PUSH_LITERAL,
+ JIT_DIP_WORD,
+ JIT_DIP,
+ JIT_2DIP_WORD,
+ JIT_2DIP,
+ JIT_3DIP_WORD,
+ JIT_3DIP,
+ JIT_EXECUTE,
+ JIT_DECLARE_WORD,
+
+ // External entry points. These are defined in the files in
+ // bootstrap/assembler/
+ C_TO_FACTOR_WORD = 43,
+ LAZY_JIT_COMPILE_WORD,
+ UNWIND_NATIVE_FRAMES_WORD,
+ GET_FPU_STATE_WORD,
+ SET_FPU_STATE_WORD,
+ SIGNAL_HANDLER_WORD,
+ LEAF_SIGNAL_HANDLER_WORD,
+ WIN_EXCEPTION_HANDLER,
+
+ // Vector used by the sampling profiler to store collected call
+ // frames.
+ OBJ_SAMPLE_CALLSTACKS = 51,
+
+ // Incremented on every modify-code-heap call; invalidates call(
+ // inline caching
+ REDEFINITION_COUNTER = 52,
+
+ // Callback stub generation in callbacks.cpp
+ CALLBACK_STUB = 53,
+
+ // Polymorphic inline cache generation in inline_cache.cpp
+ PIC_LOAD = 54,
+ PIC_TAG,
+ PIC_TUPLE,
+ PIC_CHECK_TAG,
+ PIC_CHECK_TUPLE,
+ PIC_HIT,
+ PIC_MISS_WORD,
+ PIC_MISS_TAIL_WORD,
+
+ // Megamorphic cache generation in dispatch.cpp
+ MEGA_LOOKUP = 62,
+ MEGA_LOOKUP_WORD,
+ MEGA_MISS_WORD,
+
+ OBJ_UNDEFINED = 65, // default quotation for undefined words
+
+ OBJ_STDERR = 66, // stderr FILE* handle
+
+ OBJ_STAGE2 = 67, // have we bootstrapped?
+
+ OBJ_CURRENT_THREAD = 68,
+
+ OBJ_THREADS = 69,
+ OBJ_RUN_QUEUE = 70,
+ OBJ_SLEEP_QUEUE = 71,
+
+ OBJ_VM_COMPILER = 72, // version string of the compiler we were built with
+
+ OBJ_WAITING_CALLBACKS = 73,
+
+ OBJ_SIGNAL_PIPE = 74, // file descriptor for pipe used to communicate signals
+ // only used on unix
+ OBJ_VM_COMPILE_TIME = 75, // when the binary was built
+ OBJ_VM_VERSION = 76, // factor version
+ OBJ_VM_GIT_LABEL = 77, // git label (git describe --all --long)
+
+ // Canonical truth value. In Factor, 't'
+ OBJ_CANONICAL_TRUE = 78,
+
+ // Canonical bignums. These needs to be kept in the image in case
+ // some heap objects refer to them.
+ OBJ_BIGNUM_ZERO,
+ OBJ_BIGNUM_POS_ONE,
+ OBJ_BIGNUM_NEG_ONE = 81,
};
-#define OBJ_FIRST_SAVE OBJ_BOOT
-#define OBJ_LAST_SAVE OBJ_STAGE2
-
-inline static bool save_env_p(cell i)
-{
- return (i >= OBJ_FIRST_SAVE && i <= OBJ_LAST_SAVE);
+// save-image-and-exit discards special objects that are filled in on startup
+// anyway, to reduce image size
+inline static bool save_special_p(cell i) {
+ // Need to fix the order here.
+ return (i >= OBJ_STARTUP_QUOT && i <= LEAF_SIGNAL_HANDLER_WORD) ||
+ (i >= REDEFINITION_COUNTER && i <= OBJ_UNDEFINED) ||
+ i == OBJ_STAGE2 ||
+ (i >= OBJ_CANONICAL_TRUE && i <= OBJ_BIGNUM_NEG_ONE);
}
-template<typename Iterator> void object::each_slot(Iterator &iter)
-{
- cell scan = (cell)this;
- cell payload_start = binary_payload_start();
- cell end = scan + payload_start;
-
- scan += sizeof(cell);
+template <typename Iterator> void object::each_slot(Iterator& iter) {
+ cell* start = (cell*)this + 1;
+ cell* end = start + slot_count();
- while(scan < end)
- {
- iter((cell *)scan);
- scan += sizeof(cell);
- }
+ while (start < end) {
+ iter(start);
+ start++;
+ }
}
}
projects / factor.git / blobdiff