122 lines
3.0 KiB
C++
122 lines
3.0 KiB
C++
namespace factor
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{
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struct factorvmdata {
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// if you change this struct, also change vm.factor k--------
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context *stack_chain;
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zone nursery; /* new objects are allocated here */
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cell cards_offset;
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cell decks_offset;
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cell userenv[USER_ENV]; /* TAGGED user environment data; see getenv/setenv prims */
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// -------------------------------
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// contexts
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cell ds_size, rs_size;
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context *unused_contexts;
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// run
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cell T; /* Canonical T object. It's just a word */
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// profiler
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bool profiling_p;
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// errors
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/* Global variables used to pass fault handler state from signal handler to
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user-space */
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cell signal_number;
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cell signal_fault_addr;
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unsigned int signal_fpu_status;
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stack_frame *signal_callstack_top;
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//data_heap
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bool secure_gc; /* Set by the -securegc command line argument */
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bool gc_off; /* GC is off during heap walking */
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data_heap *data;
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/* A heap walk allows useful things to be done, like finding all
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references to an object for debugging purposes. */
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cell heap_scan_ptr;
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//write barrier
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cell allot_markers_offset;
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//data_gc
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/* used during garbage collection only */
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zone *newspace;
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bool performing_gc;
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bool performing_compaction;
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cell collecting_gen;
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/* if true, we are collecting aging space for the second time, so if it is still
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full, we go on to collect tenured */
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bool collecting_aging_again;
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/* in case a generation fills up in the middle of a gc, we jump back
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up to try collecting the next generation. */
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jmp_buf gc_jmp;
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gc_stats stats[max_gen_count];
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u64 cards_scanned;
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u64 decks_scanned;
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u64 card_scan_time;
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cell code_heap_scans;
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/* What generation was being collected when copy_code_heap_roots() was last
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called? Until the next call to add_code_block(), future
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collections of younger generations don't have to touch the code
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heap. */
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cell last_code_heap_scan;
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/* sometimes we grow the heap */
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bool growing_data_heap;
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data_heap *old_data_heap;
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// local roots
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/* If a runtime function needs to call another function which potentially
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allocates memory, it must wrap any local variable references to Factor
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objects in gc_root instances */
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std::vector<cell> gc_locals;
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std::vector<cell> gc_bignums;
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//debug
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bool fep_disabled;
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bool full_output;
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cell look_for;
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cell obj;
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//math
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cell bignum_zero;
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cell bignum_pos_one;
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cell bignum_neg_one;
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//code_heap
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heap code;
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unordered_map<heap_block *,char *> forwarding;
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//image
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cell code_relocation_base;
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cell data_relocation_base;
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//dispatch
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cell megamorphic_cache_hits;
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cell megamorphic_cache_misses;
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//inline cache
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cell max_pic_size;
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cell cold_call_to_ic_transitions;
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cell ic_to_pic_transitions;
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cell pic_to_mega_transitions;
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cell pic_counts[4]; /* PIC_TAG, PIC_HI_TAG, PIC_TUPLE, PIC_HI_TAG_TUPLE */
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factorvmdata()
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: profiling_p(false),
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secure_gc(false),
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gc_off(false),
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performing_gc(false),
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performing_compaction(false),
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collecting_aging_again(false),
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growing_data_heap(false),
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fep_disabled(false),
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full_output(false),
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max_pic_size(0)
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{
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memset(this,0,sizeof(this)); // just to make sure
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}
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};
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}
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