1160 lines
29 KiB
C
1160 lines
29 KiB
C
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: stack.c *
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* comments: Stack Introspection *
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* *
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* Last rev: $Date: 2008-07-22 23:34:44 $,$Author: vsc $ *
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* $Log: not supported by cvs2svn $ *
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* Revision 1.230 2008/06/02 17:20:28 vsc *
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* *
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* *
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*************************************************************************/
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/**
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* @file stack.c
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* @author VITOR SANTOS COSTA <vsc@VITORs-MacBook-Pro.local>
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* @date Tue Sep 8 23:33:02 2015
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*
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* @brief Get to know what is in your stack.
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*
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*
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*/
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#include "Yap.h"
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#include "clause.h"
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#include "yapio.h"
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#include "eval.h"
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#include "tracer.h"
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#ifdef YAPOR
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#include "or.macros.h"
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#endif /* YAPOR */
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#ifdef TABLING
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#include "tab.macros.h"
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#endif /* TABLING */
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#if HAVE_STRING_H
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#include <string.h>
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#endif
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#include <heapgc.h>
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static int static_in_use(PredEntry *, int);
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#if !defined(YAPOR) && !defined(THREADS)
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static Int search_for_static_predicate_in_use(PredEntry *, int);
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static void mark_pred(int, PredEntry *);
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static void do_toggle_static_predicates_in_use(int);
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#endif
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static Int in_use( USES_REGS1 );
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static Int toggle_static_predicates_in_use( USES_REGS1 );
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static Int PredForCode(yamop *, Atom *, arity_t *, Term *);
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static PredEntry *
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PredForChoicePt(yamop *p_code, op_numbers *opn) {
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while (TRUE) {
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op_numbers opnum;
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if (!p_code)
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return NULL;
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opnum = Yap_op_from_opcode(p_code->opc);
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if (opn)
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*opn = opnum;
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switch(opnum) {
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case _Nstop:
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return NULL;
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case _jump:
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p_code = p_code->y_u.l.l;
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break;
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case _retry_me:
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case _trust_me:
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return p_code->y_u.Otapl.p;
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case _retry_exo:
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case _retry_all_exo:
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return p_code->y_u.lp.p;
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case _try_logical:
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case _retry_logical:
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case _trust_logical:
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case _count_retry_logical:
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case _count_trust_logical:
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case _profiled_retry_logical:
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case _profiled_trust_logical:
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return p_code->y_u.OtaLl.d->ClPred;
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#ifdef TABLING
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case _trie_trust_var:
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case _trie_retry_var:
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case _trie_trust_var_in_pair:
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case _trie_retry_var_in_pair:
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case _trie_trust_val:
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case _trie_retry_val:
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case _trie_trust_val_in_pair:
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case _trie_retry_val_in_pair:
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case _trie_trust_atom:
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case _trie_retry_atom:
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case _trie_trust_atom_in_pair:
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case _trie_retry_atom_in_pair:
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case _trie_trust_null:
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case _trie_retry_null:
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case _trie_trust_null_in_pair:
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case _trie_retry_null_in_pair:
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case _trie_trust_pair:
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case _trie_retry_pair:
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case _trie_trust_appl:
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case _trie_retry_appl:
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case _trie_trust_appl_in_pair:
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case _trie_retry_appl_in_pair:
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case _trie_trust_extension:
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case _trie_retry_extension:
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case _trie_trust_double:
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case _trie_retry_double:
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case _trie_trust_longint:
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case _trie_retry_longint:
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case _trie_trust_gterm:
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case _trie_retry_gterm:
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return NULL;
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case _table_load_answer:
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case _table_try_answer:
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case _table_answer_resolution:
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case _table_completion:
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#ifdef THREADS_CONSUMER_SHARING
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case _table_answer_resolution_completion:
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#endif /* THREADS_CONSUMER_SHARING */
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return NULL; /* ricroc: is this OK? */
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/* compile error --> return ENV_ToP(gc_B->cp_cp); */
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#endif /* TABLING */
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case _or_else:
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if (p_code == p_code->y_u.Osblp.l) {
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/* repeat */
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Atom at = AtomRepeatSpace;
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return RepPredProp(PredPropByAtom(at, PROLOG_MODULE));
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} else {
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return p_code->y_u.Osblp.p0;
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}
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break;
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case _or_last:
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#ifdef YAPOR
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return p_code->y_u.Osblp.p0;
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#else
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return p_code->y_u.p.p;
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#endif /* YAPOR */
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break;
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case _count_retry_me:
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case _retry_profiled:
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case _retry2:
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case _retry3:
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case _retry4:
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p_code = NEXTOP(p_code,l);
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break;
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default:
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return p_code->y_u.Otapl.p;
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}
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}
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return NULL;
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}
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/**
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* Yap_PredForChoicePt(): find out the predicate who generated a CP.
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*
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* @param cp the choice point
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* @param op the YAAM instruction to process next
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*
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* @return A predixate structure or NULL
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*
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* usually pretty straightforward, it can fall in trouble with
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8 OR-P or tabling.
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*/
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PredEntry *
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Yap_PredForChoicePt(choiceptr cp, op_numbers *op) {
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if (cp == NULL)
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return NULL;
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return PredForChoicePt(cp->cp_ap, op);
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}
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#if !defined(YAPOR) && !defined(THREADS)
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static yamop *cur_clause(PredEntry *pe, yamop *codeptr)
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{
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StaticClause *cl;
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cl = ClauseCodeToStaticClause(pe->cs.p_code.FirstClause);
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do {
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if (IN_BLOCK(codeptr,cl,cl->ClSize)) {
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return cl->ClCode;
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}
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if (cl->ClCode == pe->cs.p_code.LastClause)
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break;
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cl = cl->ClNext;
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} while (TRUE);
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Yap_Error(SYSTEM_ERROR_INTERNAL,TermNil,"could not find clause for indexing code");
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return(NULL);
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}
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static yamop *cur_log_upd_clause(PredEntry *pe, yamop *codeptr)
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{
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LogUpdClause *cl;
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cl = ClauseCodeToLogUpdClause(pe->cs.p_code.FirstClause);
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do {
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if (IN_BLOCK(codeptr,cl->ClCode,cl->ClSize)) {
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return((yamop *)cl->ClCode);
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}
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cl = cl->ClNext;
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} while (cl != NULL);
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Yap_Error(SYSTEM_ERROR_INTERNAL,TermNil,"could not find clause for indexing code");
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return(NULL);
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}
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static Int
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search_for_static_predicate_in_use(PredEntry *p, int check_everything)
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{
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choiceptr b_ptr = B;
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CELL *env_ptr = ENV;
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if (check_everything && P) {
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PredEntry *pe = EnvPreg(P);
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if (p == pe) return TRUE;
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pe = EnvPreg(CP);
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if (p == pe) return TRUE;
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}
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do {
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PredEntry *pe;
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/* check first environments that are younger than our latest choicepoint */
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if (check_everything && env_ptr) {
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/*
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I do not need to check environments for asserts,
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only for retracts
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*/
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while (env_ptr && b_ptr > (choiceptr)env_ptr) {
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yamop *cp = (yamop *)env_ptr[E_CP];
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PredEntry *pe;
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pe = EnvPreg(cp);
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if (p == pe) return(TRUE);
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if (env_ptr != NULL)
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env_ptr = (CELL *)(env_ptr[E_E]);
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}
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}
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/* now mark the choicepoint */
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if (b_ptr)
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pe = PredForChoicePt(b_ptr->cp_ap, NULL);
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else
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return FALSE;
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if (pe == p) {
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if (check_everything)
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return TRUE;
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PELOCK(38,p);
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if (p->PredFlags & IndexedPredFlag) {
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yamop *code_p = b_ptr->cp_ap;
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yamop *code_beg = p->cs.p_code.TrueCodeOfPred;
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/* FIX ME */
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if (p->PredFlags & LogUpdatePredFlag) {
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LogUpdIndex *cl = ClauseCodeToLogUpdIndex(code_beg);
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if (find_owner_log_index(cl, code_p))
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b_ptr->cp_ap = cur_log_upd_clause(pe, b_ptr->cp_ap->y_u.Otapl.d);
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} else if (p->PredFlags & MegaClausePredFlag) {
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StaticIndex *cl = ClauseCodeToStaticIndex(code_beg);
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if (find_owner_static_index(cl, code_p))
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b_ptr->cp_ap = cur_clause(pe, b_ptr->cp_ap->y_u.Otapl.d);
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} else {
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/* static clause */
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StaticIndex *cl = ClauseCodeToStaticIndex(code_beg);
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if (find_owner_static_index(cl, code_p)) {
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b_ptr->cp_ap = cur_clause(pe, b_ptr->cp_ap->y_u.Otapl.d);
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}
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}
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}
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UNLOCKPE(63,pe);
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}
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env_ptr = b_ptr->cp_env;
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b_ptr = b_ptr->cp_b;
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} while (b_ptr != NULL);
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return(FALSE);
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}
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static void
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mark_pred(int mark, PredEntry *pe)
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{
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/* if the predicate is static mark it */
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if (pe->ModuleOfPred) {
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PELOCK(39,p);
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if (mark) {
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pe->PredFlags |= InUsePredFlag;
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} else {
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pe->PredFlags &= ~InUsePredFlag;
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}
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UNLOCK(pe->PELock);
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}
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}
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/* go up the chain of choice_points and environments,
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marking all static predicates that current execution is depending
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upon */
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static void
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do_toggle_static_predicates_in_use(int mask)
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{
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choiceptr b_ptr = B;
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CELL *env_ptr = ENV;
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if (b_ptr == NULL)
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return;
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do {
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PredEntry *pe;
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/* check first environments that are younger than our latest choicepoint */
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while (b_ptr > (choiceptr)env_ptr) {
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PredEntry *pe = EnvPreg((yamop *)env_ptr[E_CP]);
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mark_pred(mask, pe);
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env_ptr = (CELL *)(env_ptr[E_E]);
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}
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/* now mark the choicepoint */
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if ((b_ptr)) {
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if ((pe = PredForChoicePt(b_ptr->cp_ap, NULL))) {
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mark_pred(mask, pe);
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}
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}
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env_ptr = b_ptr->cp_env;
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b_ptr = b_ptr->cp_b;
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} while (b_ptr != NULL);
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/* mark or unmark all predicates */
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STATIC_PREDICATES_MARKED = mask;
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}
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#endif /* !defined(YAPOR) && !defined(THREADS) */
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}
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if (p == NULL) {
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return 0;
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}
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clause_was_found(p, pat, parity);
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if (p->ModuleOfPred == PROLOG_MODULE)
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*pmodule = TermProlog;
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else
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*pmodule = p->ModuleOfPred;
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return -1;
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}
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/* intruction blocks we found ourselves at */
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static PredEntry *
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walk_got_lu_block(LogUpdIndex *cl, CODEADDR *startp, CODEADDR *endp)
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{
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PredEntry *pp = cl->ClPred;
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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return pp;
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}
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/* intruction blocks we found ourselves at */
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static PredEntry *
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walk_got_lu_clause(LogUpdClause *cl, CODEADDR *startp, CODEADDR *endp)
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{
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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return cl->ClPred;
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}
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/* we hit a meta-call, so we don't know what is happening */
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static PredEntry *
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found_meta_call(CODEADDR *startp, CODEADDR *endp)
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{
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PredEntry *pp = PredMetaCall;
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*startp = (CODEADDR)&(pp->OpcodeOfPred);
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*endp = (CODEADDR)NEXTOP((yamop *)&(pp->OpcodeOfPred),e);
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return pp;
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}
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/* intruction blocks we found ourselves at */
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static PredEntry *
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walk_found_c_pred(PredEntry *pp, CODEADDR *startp, CODEADDR *endp)
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{
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StaticClause *cl = ClauseCodeToStaticClause(pp->CodeOfPred);
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*startp = (CODEADDR)&(cl->ClCode);
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*endp = (CODEADDR)&(cl->ClCode)+cl->ClSize;
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return pp;
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}
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/* we hit a mega-clause, no point in going on */
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static PredEntry *
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found_mega_clause(PredEntry *pp, CODEADDR *startp, CODEADDR *endp)
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{
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MegaClause *mcl = ClauseCodeToMegaClause(pp->cs.p_code.FirstClause);
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*startp = (CODEADDR)mcl;
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*endp = (CODEADDR)mcl+mcl->ClSize;
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return pp;
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}
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/* we hit a mega-clause, no point in going on */
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static PredEntry *
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found_idb_clause(yamop *pc, CODEADDR *startp, CODEADDR *endp)
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{
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LogUpdClause *cl = ClauseCodeToLogUpdClause(pc);
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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return cl->ClPred;
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}
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/* we hit a expand_index, no point in going on */
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static PredEntry *
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found_expand_index(yamop *pc, CODEADDR *startp, CODEADDR *endp, yamop *codeptr USES_REGS)
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{
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PredEntry *pp = codeptr->y_u.sssllp.p;
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if (pc == codeptr) {
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*startp = (CODEADDR)codeptr;
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*endp = (CODEADDR)NEXTOP(codeptr,sssllp);
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}
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return pp;
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}
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/* we hit a expand_index, no point in going on */
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static PredEntry *
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found_fail(yamop *pc, CODEADDR *startp, CODEADDR *endp USES_REGS)
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{
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PredEntry *pp = RepPredProp(Yap_GetPredPropByAtom(AtomFail,CurrentModule));
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*startp = *endp = (CODEADDR)FAILCODE;
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return pp;
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}
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/* we hit a expand_index, no point in going on */
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static PredEntry *
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found_owner_op(yamop *pc, CODEADDR *startp, CODEADDR *endp USES_REGS)
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{
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PredEntry *pp = ((PredEntry *)(Unsigned(pc)-(CELL)(&(((PredEntry *)NULL)->OpcodeOfPred))));
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*startp = (CODEADDR)&(pp->OpcodeOfPred);
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*endp = (CODEADDR)NEXTOP((yamop *)&(pp->OpcodeOfPred),e);
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return pp;
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}
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/* we hit a expand_index, no point in going on */
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static PredEntry *
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found_expand(yamop *pc, CODEADDR *startp, CODEADDR *endp USES_REGS)
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{
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PredEntry *pp = ((PredEntry *)(Unsigned(pc)-(CELL)(&(((PredEntry *)NULL)->cs.p_code.ExpandCode))));
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*startp = (CODEADDR)&(pp->cs.p_code.ExpandCode);
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*endp = (CODEADDR)NEXTOP((yamop *)&(pp->cs.p_code.ExpandCode),e);
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return pp;
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}
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static PredEntry *
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found_ystop(yamop *pc, int clause_code, CODEADDR *startp, CODEADDR *endp, PredEntry *pp USES_REGS)
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{
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if (pc == YESCODE) {
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pp = RepPredProp(Yap_GetPredPropByAtom(AtomTrue,CurrentModule));
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*startp = (CODEADDR)YESCODE;
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*endp = (CODEADDR)YESCODE+(CELL)(NEXTOP((yamop *)NULL,e));
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return pp;
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}
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if (!pp) {
|
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/* must be an index */
|
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PredEntry **pep = (PredEntry **)pc->y_u.l.l;
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pp = pep[-1];
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}
|
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if (pp->PredFlags & LogUpdatePredFlag) {
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if (clause_code) {
|
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LogUpdClause *cl = ClauseCodeToLogUpdClause(pc->y_u.l.l);
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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} else {
|
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LogUpdIndex *cl = ClauseCodeToLogUpdIndex(pc->y_u.l.l);
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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}
|
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} else if (pp->PredFlags & DynamicPredFlag) {
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DynamicClause *cl = ClauseCodeToDynamicClause(pc->y_u.l.l);
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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} else {
|
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if (clause_code) {
|
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StaticClause *cl = ClauseCodeToStaticClause(pc->y_u.l.l);
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*startp = (CODEADDR)cl;
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*endp = (CODEADDR)cl+cl->ClSize;
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} else {
|
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StaticIndex *cl = ClauseCodeToStaticIndex(pc->y_u.l.l);
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*startp = (CODEADDR)cl;
|
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*endp = (CODEADDR)cl+cl->ClSize;
|
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}
|
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}
|
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return pp;
|
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}
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|
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static PredEntry *
|
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ClauseInfoForCode(yamop *codeptr, CODEADDR *startp, CODEADDR *endp USES_REGS) {
|
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yamop *pc;
|
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PredEntry *pp = NULL;
|
|
int clause_code = FALSE;
|
|
|
|
if (codeptr >= COMMA_CODE &&
|
|
codeptr < FAILCODE) {
|
|
pp = RepPredProp(Yap_GetPredPropByFunc(FunctorComma,CurrentModule));
|
|
*startp = (CODEADDR)COMMA_CODE;
|
|
*endp = (CODEADDR)(FAILCODE-1);
|
|
return pp;
|
|
}
|
|
pc = codeptr;
|
|
#include "walkclause.h"
|
|
return NULL;
|
|
}
|
|
|
|
PredEntry *
|
|
Yap_PredEntryForCode(yamop *codeptr, find_pred_type where_from, CODEADDR *startp, CODEADDR *endp) {
|
|
CACHE_REGS
|
|
if (where_from == FIND_PRED_FROM_CP) {
|
|
PredEntry *pp = PredForChoicePt(codeptr, NULL);
|
|
if (cl_code_in_pred(pp, codeptr, startp, endp)) {
|
|
return pp;
|
|
}
|
|
} else if (where_from == FIND_PRED_FROM_ENV) {
|
|
PredEntry *pp = EnvPreg(codeptr);
|
|
if (cl_code_in_pred(pp, codeptr, startp, endp)) {
|
|
return pp;
|
|
}
|
|
} else {
|
|
return ClauseInfoForCode(codeptr, startp, endp PASS_REGS);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Detect whether the predicate describing the goal in A1,
|
|
* module A2 is currently live in the stack.
|
|
*
|
|
* @param USES_REGS1
|
|
*
|
|
* @return liveness
|
|
*/
|
|
static Int
|
|
p_in_use( USES_REGS1 )
|
|
{ /* '$in_use'(+P,+Mod) */
|
|
PredEntry *pe;
|
|
Int out;
|
|
|
|
pe = get_pred(Deref(ARG1), Deref(ARG2), "$in_use");
|
|
if (EndOfPAEntr(pe))
|
|
return FALSE;
|
|
PELOCK(25,pe);
|
|
out = static_in_use(pe,TRUE);
|
|
UNLOCKPE(42,pe);
|
|
return(out);
|
|
}
|
|
|
|
|
|
static Int
|
|
p_pred_for_code( USES_REGS1 ) {
|
|
yamop *codeptr;
|
|
Atom at;
|
|
arity_t arity;
|
|
Term tmodule = TermProlog;
|
|
Int cl;
|
|
Term t = Deref(ARG1);
|
|
|
|
if (IsVarTerm(t)) {
|
|
return FALSE;
|
|
} else if (IsApplTerm(t) && FunctorOfTerm(t) == FunctorStaticClause) {
|
|
codeptr = Yap_ClauseFromTerm(t)->ClCode;
|
|
} else if (IsIntegerTerm(t)) {
|
|
codeptr = (yamop *)IntegerOfTerm(t);
|
|
} else if (IsDBRefTerm(t)) {
|
|
codeptr = (yamop *)DBRefOfTerm(t);
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
cl = PredForCode(codeptr, &at, &arity, &tmodule);
|
|
if (!tmodule) tmodule = TermProlog;
|
|
if (cl == 0) {
|
|
return Yap_unify(ARG5,MkIntTerm(0));
|
|
} else {
|
|
return(Yap_unify(ARG2,MkAtomTerm(at)) &&
|
|
Yap_unify(ARG3,MkIntegerTerm(arity)) &&
|
|
Yap_unify(ARG4,tmodule) &&
|
|
Yap_unify(ARG5,MkIntegerTerm(cl)));
|
|
}
|
|
}
|
|
|
|
#if LOW_PROF
|
|
|
|
static void
|
|
add_code_in_lu_index(LogUpdIndex *cl, PredEntry *pp)
|
|
{
|
|
char *code_end = (char *)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp, GPROF_LU_INDEX);
|
|
cl = cl->ChildIndex;
|
|
while (cl != NULL) {
|
|
add_code_in_lu_index(cl, pp);
|
|
cl = cl->SiblingIndex;
|
|
}
|
|
}
|
|
|
|
static void
|
|
add_code_in_static_index(StaticIndex *cl, PredEntry *pp)
|
|
{
|
|
char *code_end = (char *)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp, GPROF_STATIC_INDEX);
|
|
cl = cl->ChildIndex;
|
|
while (cl != NULL) {
|
|
add_code_in_static_index(cl, pp);
|
|
cl = cl->SiblingIndex;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
add_code_in_pred(PredEntry *pp) {
|
|
yamop *clcode;
|
|
|
|
PELOCK(49,pp);
|
|
/* check if the codeptr comes from the indexing code */
|
|
|
|
/* highly likely this is used for indexing */
|
|
Yap_inform_profiler_of_clause(&(pp->OpcodeOfPred), &(pp->OpcodeOfPred)+1, pp, GPROF_INIT_OPCODE);
|
|
if (pp->PredFlags & (CPredFlag|AsmPredFlag)) {
|
|
char *code_end;
|
|
StaticClause *cl;
|
|
|
|
clcode = pp->CodeOfPred;
|
|
cl = ClauseCodeToStaticClause(clcode);
|
|
code_end = (char *)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp, GPROF_INIT_SYSTEM_CODE);
|
|
UNLOCK(pp->PELock);
|
|
return;
|
|
}
|
|
Yap_inform_profiler_of_clause(&(pp->cs.p_code.ExpandCode), &(pp->cs.p_code.ExpandCode)+1, pp, GPROF_INIT_EXPAND);
|
|
clcode = pp->cs.p_code.TrueCodeOfPred;
|
|
if (pp->PredFlags & IndexedPredFlag) {
|
|
if (pp->PredFlags & LogUpdatePredFlag) {
|
|
LogUpdIndex *cl = ClauseCodeToLogUpdIndex(clcode);
|
|
add_code_in_lu_index(cl, pp);
|
|
} else {
|
|
StaticIndex *cl = ClauseCodeToStaticIndex(clcode);
|
|
add_code_in_static_index(cl, pp);
|
|
}
|
|
}
|
|
clcode = pp->cs.p_code.FirstClause;
|
|
if (clcode != NULL) {
|
|
if (pp->PredFlags & LogUpdatePredFlag) {
|
|
LogUpdClause *cl = ClauseCodeToLogUpdClause(clcode);
|
|
do {
|
|
char *code_end;
|
|
|
|
code_end = (char *)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp, GPROF_INIT_LOG_UPD_CLAUSE);
|
|
cl = cl->ClNext;
|
|
} while (cl != NULL);
|
|
} else if (pp->PredFlags & DynamicPredFlag) {
|
|
do {
|
|
DynamicClause *cl;
|
|
CODEADDR code_end;
|
|
|
|
cl = ClauseCodeToDynamicClause(clcode);
|
|
code_end = (CODEADDR)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp, GPROF_INIT_DYNAMIC_CLAUSE);
|
|
if (clcode == pp->cs.p_code.LastClause)
|
|
break;
|
|
clcode = NextDynamicClause(clcode);
|
|
} while (TRUE);
|
|
} else {
|
|
StaticClause *cl = ClauseCodeToStaticClause(clcode);
|
|
do {
|
|
char *code_end;
|
|
|
|
code_end = (char *)cl + cl->ClSize;
|
|
Yap_inform_profiler_of_clause(cl, code_end, pp,GPROF_INIT_STATIC_CLAUSE);
|
|
if (cl->ClCode == pp->cs.p_code.LastClause)
|
|
break;
|
|
cl = cl->ClNext;
|
|
} while (TRUE);
|
|
}
|
|
}
|
|
UNLOCK(pp->PELock);
|
|
}
|
|
|
|
|
|
void
|
|
Yap_dump_code_area_for_profiler(void) {
|
|
ModEntry *me = CurrentModules;
|
|
|
|
while (me) {
|
|
PredEntry *pp = me->PredForME;
|
|
|
|
while (pp != NULL) {
|
|
/* if (pp->ArityOfPE) {
|
|
fprintf(stderr,"%s/%d %p\n",
|
|
RepAtom(NameOfFunctor(pp->FunctorOfPred))->StrOfAE,
|
|
pp->ArityOfPE,
|
|
pp);
|
|
} else {
|
|
fprintf(stderr,"%s %p\n",
|
|
RepAtom((Atom)(pp->FunctorOfPred))->StrOfAE,
|
|
pp);
|
|
}*/
|
|
add_code_in_pred(pp);
|
|
pp = pp->NextPredOfModule;
|
|
}
|
|
me = me->NextME;
|
|
}
|
|
Yap_inform_profiler_of_clause(COMMA_CODE, FAILCODE, RepPredProp(Yap_GetPredPropByFunc(FunctorComma,0)), GPROF_INIT_COMMA);
|
|
Yap_inform_profiler_of_clause(FAILCODE, FAILCODE+1, RepPredProp(Yap_GetPredPropByAtom(AtomFail,0)), GPROF_INIT_FAIL);
|
|
}
|
|
|
|
#endif /* LOW_PROF */
|
|
|
|
static UInt
|
|
tree_index_ssz(StaticIndex *x)
|
|
{
|
|
UInt sz = x->ClSize;
|
|
x = x->ChildIndex;
|
|
while (x != NULL) {
|
|
sz += tree_index_ssz(x);
|
|
x = x->SiblingIndex;
|
|
}
|
|
return sz;
|
|
}
|
|
|
|
static UInt
|
|
index_ssz(StaticIndex *x, PredEntry *pe)
|
|
{
|
|
UInt sz = 0;
|
|
yamop *ep = ExpandClausesFirst;
|
|
if (pe->PredFlags & MegaClausePredFlag) {
|
|
MegaClause *mcl = ClauseCodeToMegaClause(pe->cs.p_code.FirstClause);
|
|
if (mcl->ClFlags & ExoMask) {
|
|
struct index_t *i = ((struct index_t **)(pe->cs.p_code.FirstClause))[0];
|
|
sz = 0;
|
|
|
|
while (i) {
|
|
sz = i->size+sz;
|
|
i = i->next;
|
|
}
|
|
return sz;
|
|
}
|
|
}
|
|
/* expand clause blocks */
|
|
while (ep) {
|
|
if (ep->y_u.sssllp.p == pe)
|
|
sz += (UInt)NEXTOP((yamop *)NULL,sssllp)+ep->y_u.sssllp.s1*sizeof(yamop *);
|
|
ep = ep->y_u.sssllp.snext;
|
|
}
|
|
/* main indexing tree */
|
|
sz += tree_index_ssz(x);
|
|
return sz;
|
|
}
|
|
|
|
static Int
|
|
static_statistics(PredEntry *pe)
|
|
{
|
|
CACHE_REGS
|
|
UInt sz = sizeof(PredEntry), cls = 0, isz = 0;
|
|
StaticClause *cl = ClauseCodeToStaticClause(pe->cs.p_code.FirstClause);
|
|
|
|
if (pe->cs.p_code.NOfClauses > 1 &&
|
|
pe->cs.p_code.TrueCodeOfPred != pe->cs.p_code.FirstClause) {
|
|
isz = index_ssz(ClauseCodeToStaticIndex(pe->cs.p_code.TrueCodeOfPred), pe);
|
|
}
|
|
if (pe->PredFlags & MegaClausePredFlag) {
|
|
MegaClause *mcl = ClauseCodeToMegaClause(pe->cs.p_code.FirstClause);
|
|
return Yap_unify(ARG3, MkIntegerTerm(mcl->ClSize/mcl->ClItemSize)) &&
|
|
Yap_unify(ARG4, MkIntegerTerm(mcl->ClSize)) &&
|
|
Yap_unify(ARG5, MkIntegerTerm(isz));
|
|
}
|
|
if (pe->cs.p_code.NOfClauses) {
|
|
do {
|
|
cls++;
|
|
sz += cl->ClSize;
|
|
if (cl->ClCode == pe->cs.p_code.LastClause)
|
|
break;
|
|
cl = cl->ClNext;
|
|
} while (TRUE);
|
|
}
|
|
return Yap_unify(ARG3, MkIntegerTerm(cls)) &&
|
|
Yap_unify(ARG4, MkIntegerTerm(sz)) &&
|
|
Yap_unify(ARG5, MkIntegerTerm(isz));
|
|
}
|
|
|
|
static Int
|
|
p_static_pred_statistics( USES_REGS1 )
|
|
{
|
|
Int out;
|
|
PredEntry *pe;
|
|
|
|
pe = get_pred( Deref(ARG1), Deref(ARG2), "predicate_statistics");
|
|
if (pe == NIL)
|
|
return (FALSE);
|
|
PELOCK(50,pe);
|
|
if (pe->PredFlags & (DynamicPredFlag|LogUpdatePredFlag|UserCPredFlag|AsmPredFlag|CPredFlag|BinaryPredFlag)) {
|
|
/* should use '$recordedp' in this case */
|
|
UNLOCK(pe->PELock);
|
|
return FALSE;
|
|
}
|
|
out = static_statistics(pe);
|
|
UNLOCK(pe->PELock);
|
|
return out;
|
|
}
|
|
|
|
static Int
|
|
p_predicate_erased_statistics( USES_REGS1 )
|
|
{
|
|
UInt sz = 0, cls = 0;
|
|
UInt isz = 0, icls = 0;
|
|
PredEntry *pe;
|
|
LogUpdClause *cl = DBErasedList;
|
|
LogUpdIndex *icl = DBErasedIList;
|
|
Term tpred = ArgOfTerm(2,Deref(ARG1));
|
|
Term tmod = ArgOfTerm(1,Deref(ARG1));
|
|
|
|
if (EndOfPAEntr(pe=get_pred(tpred, tmod, "predicate_erased_statistics")))
|
|
return FALSE;
|
|
while (cl) {
|
|
if (cl->ClPred == pe) {
|
|
cls++;
|
|
sz += cl->ClSize;
|
|
}
|
|
cl = cl->ClNext;
|
|
}
|
|
while (icl) {
|
|
if (pe == icl->ClPred) {
|
|
icls++;
|
|
isz += icl->ClSize;
|
|
}
|
|
icl = icl->SiblingIndex;
|
|
}
|
|
return
|
|
Yap_unify(ARG2,MkIntegerTerm(cls)) &&
|
|
Yap_unify(ARG3,MkIntegerTerm(sz)) &&
|
|
Yap_unify(ARG4,MkIntegerTerm(icls)) &&
|
|
Yap_unify(ARG5,MkIntegerTerm(isz));
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static Int
|
|
p_predicate_lu_cps( USES_REGS1 )
|
|
{
|
|
return Yap_unify(ARG1, MkIntegerTerm(Yap_LiveCps)) &&
|
|
Yap_unify(ARG2, MkIntegerTerm(Yap_FreedCps)) &&
|
|
Yap_unify(ARG3, MkIntegerTerm(Yap_DirtyCps)) &&
|
|
Yap_unify(ARG4, MkIntegerTerm(Yap_NewCps));
|
|
}
|
|
#endif
|
|
|
|
static Int
|
|
p_program_continuation( USES_REGS1 )
|
|
{
|
|
PredEntry *pe = EnvPreg((yamop *)((ENV_Parent(ENV))[E_CP]));
|
|
if (pe->ModuleOfPred) {
|
|
if (!Yap_unify(ARG1,pe->ModuleOfPred))
|
|
return FALSE;
|
|
} else {
|
|
if (!Yap_unify(ARG1,TermProlog))
|
|
return FALSE;
|
|
}
|
|
if (pe->ArityOfPE) {
|
|
if (!Yap_unify(ARG2,MkAtomTerm(NameOfFunctor(pe->FunctorOfPred))))
|
|
return FALSE;
|
|
if (!Yap_unify(ARG3,MkIntegerTerm(ArityOfFunctor(pe->FunctorOfPred))))
|
|
return FALSE;
|
|
} else {
|
|
if (!Yap_unify(ARG2,MkAtomTerm((Atom)pe->FunctorOfPred)))
|
|
return FALSE;
|
|
if (!Yap_unify(ARG3,MkIntTerm(0)))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static Term
|
|
BuildActivePred(PredEntry *ap, CELL *vect)
|
|
{
|
|
CACHE_REGS
|
|
arity_t i;
|
|
|
|
if (!ap->ArityOfPE) {
|
|
return MkVarTerm();
|
|
}
|
|
for (i = 0; i < ap->ArityOfPE; i++) {
|
|
Term t = Deref(vect[i]);
|
|
if (IsVarTerm(t)) {
|
|
CELL *pt = VarOfTerm(t);
|
|
/* one stack */
|
|
if (pt > HR) {
|
|
Term nt = MkVarTerm();
|
|
Yap_unify(t, nt);
|
|
}
|
|
}
|
|
}
|
|
return Yap_MkApplTerm(ap->FunctorOfPred, ap->ArityOfPE, vect);
|
|
}
|
|
|
|
static int
|
|
UnifyPredInfo(PredEntry *pe, int start_arg USES_REGS) {
|
|
arity_t arity = pe->ArityOfPE;
|
|
Term tmod, tname;
|
|
|
|
if (pe->ModuleOfPred != IDB_MODULE) {
|
|
if (pe->ModuleOfPred == PROLOG_MODULE) {
|
|
tmod = TermProlog;
|
|
} else {
|
|
tmod = pe->ModuleOfPred;
|
|
}
|
|
if (pe->ArityOfPE == 0) {
|
|
tname = MkAtomTerm((Atom)pe->FunctorOfPred);
|
|
} else {
|
|
Functor f = pe->FunctorOfPred;
|
|
tname = MkAtomTerm(NameOfFunctor(f));
|
|
}
|
|
} else {
|
|
tmod = pe->ModuleOfPred;
|
|
if (pe->PredFlags & NumberDBPredFlag) {
|
|
tname = MkIntegerTerm(pe->src.IndxId);
|
|
} else if (pe->PredFlags & AtomDBPredFlag) {
|
|
tname = MkAtomTerm((Atom)pe->FunctorOfPred);
|
|
} else {
|
|
Functor f = pe->FunctorOfPred;
|
|
tname = MkAtomTerm(NameOfFunctor(f));
|
|
}
|
|
}
|
|
|
|
return Yap_unify(XREGS[start_arg], tmod) &&
|
|
Yap_unify(XREGS[start_arg+1],tname) &&
|
|
Yap_unify(XREGS[start_arg+2],MkIntegerTerm(arity));
|
|
}
|
|
|
|
|
|
static Int
|
|
ClauseId(yamop *ipc, PredEntry *pe)
|
|
{
|
|
if (!ipc)
|
|
return 0;
|
|
return find_code_in_clause(pe, ipc, NULL, NULL);
|
|
}
|
|
|
|
static Int
|
|
p_env_info( USES_REGS1 )
|
|
{
|
|
CELL *env = LCL0-IntegerOfTerm(Deref(ARG1));
|
|
yamop *env_cp;
|
|
Term env_b, taddr;
|
|
|
|
if (!env)
|
|
return FALSE;
|
|
env_b = MkIntegerTerm((Int)(LCL0-(CELL *)env[E_CB]));
|
|
env_cp = (yamop *)env[E_CP];
|
|
|
|
/* pe = PREVOP(env_cp,Osbpp)->y_u.Osbpp.p0; */
|
|
taddr = MkIntegerTerm((Int)env);
|
|
return Yap_unify(ARG3,MkIntegerTerm((Int)env_cp)) &&
|
|
Yap_unify(ARG2, taddr) &&
|
|
Yap_unify(ARG4, env_b);
|
|
}
|
|
|
|
static Int
|
|
p_cpc_info( USES_REGS1 )
|
|
{
|
|
PredEntry *pe;
|
|
yamop *ipc = (yamop *)IntegerOfTerm(Deref(ARG1));
|
|
|
|
pe = PREVOP(ipc,Osbpp)->y_u.Osbpp.p0;
|
|
return UnifyPredInfo(pe, 2 PASS_REGS) &&
|
|
Yap_unify(ARG5,MkIntegerTerm(ClauseId(ipc,pe)));
|
|
}
|
|
|
|
static Int
|
|
p_choicepoint_info( USES_REGS1 )
|
|
{
|
|
choiceptr cptr = (choiceptr)(LCL0-IntegerOfTerm(Deref(ARG1)));
|
|
PredEntry *pe = NULL;
|
|
int go_on = TRUE;
|
|
yamop *ipc = cptr->cp_ap;
|
|
yamop *ncl = NULL;
|
|
Term t = TermNil, taddr;
|
|
|
|
taddr = MkIntegerTerm((Int)cptr);
|
|
while (go_on) {
|
|
op_numbers opnum = Yap_op_from_opcode(ipc->opc);
|
|
go_on = FALSE;
|
|
switch (opnum) {
|
|
#ifdef TABLING
|
|
case _table_load_answer:
|
|
#ifdef LOW_LEVEL_TRACER
|
|
pe = LOAD_CP(cptr)->cp_pred_entry;
|
|
#else
|
|
pe = UndefCode;
|
|
#endif
|
|
t = MkVarTerm();
|
|
break;
|
|
case _table_try_answer:
|
|
case _table_retry_me:
|
|
case _table_trust_me:
|
|
case _table_retry:
|
|
case _table_trust:
|
|
case _table_completion:
|
|
#ifdef THREADS_CONSUMER_SHARING
|
|
case _table_answer_resolution_completion:
|
|
#endif /* THREADS_CONSUMER_SHARING */
|
|
#ifdef LOW_LEVEL_TRACER
|
|
#ifdef DETERMINISTIC_TABLING
|
|
if (IS_DET_GEN_CP(cptr)) {
|
|
pe = DET_GEN_CP(cptr)->cp_pred_entry;
|
|
t = MkVarTerm();
|
|
} else
|
|
#endif /* DETERMINISTIC_TABLING */
|
|
{
|
|
pe = GEN_CP(cptr)->cp_pred_entry;
|
|
t = BuildActivePred(pe, (CELL *)(GEN_CP(B) + 1));
|
|
}
|
|
#else
|
|
pe = UndefCode;
|
|
t = MkVarTerm();
|
|
#endif
|
|
break;
|
|
case _table_answer_resolution:
|
|
#ifdef LOW_LEVEL_TRACER
|
|
pe = CONS_CP(cptr)->cp_pred_entry;
|
|
#else
|
|
pe = UndefCode;
|
|
#endif
|
|
t = MkVarTerm();
|
|
break;
|
|
case _trie_trust_var:
|
|
case _trie_retry_var:
|
|
case _trie_trust_var_in_pair:
|
|
case _trie_retry_var_in_pair:
|
|
case _trie_trust_val:
|
|
case _trie_retry_val:
|
|
case _trie_trust_val_in_pair:
|
|
case _trie_retry_val_in_pair:
|
|
case _trie_trust_atom:
|
|
case _trie_retry_atom:
|
|
case _trie_trust_atom_in_pair:
|
|
case _trie_retry_atom_in_pair:
|
|
case _trie_trust_null:
|
|
case _trie_retry_null:
|
|
case _trie_trust_null_in_pair:
|
|
case _trie_retry_null_in_pair:
|
|
case _trie_trust_pair:
|
|
case _trie_retry_pair:
|
|
case _trie_trust_appl:
|
|
case _trie_retry_appl:
|
|
case _trie_trust_appl_in_pair:
|
|
case _trie_retry_appl_in_pair:
|
|
case _trie_trust_extension:
|
|
case _trie_retry_extension:
|
|
case _trie_trust_double:
|
|
case _trie_retry_double:
|
|
case _trie_trust_longint:
|
|
case _trie_retry_longint:
|
|
case _trie_trust_gterm:
|
|
case _trie_retry_gterm:
|
|
pe = UndefCode;
|
|
t = MkVarTerm();
|
|
break;
|
|
#endif /* TABLING */
|
|
case _try_logical:
|
|
case _retry_logical:
|
|
case _trust_logical:
|
|
case _count_retry_logical:
|
|
case _count_trust_logical:
|
|
case _profiled_retry_logical:
|
|
case _profiled_trust_logical:
|
|
ncl = ipc->y_u.OtaLl.d->ClCode;
|
|
pe = ipc->y_u.OtaLl.d->ClPred;
|
|
t = BuildActivePred(pe, cptr->cp_args);
|
|
break;
|
|
case _or_else:
|
|
pe = ipc->y_u.Osblp.p0;
|
|
ncl = ipc;
|
|
t = Yap_MkNewApplTerm(FunctorOr, 2);
|
|
break;
|
|
|
|
case _or_last:
|
|
#ifdef YAPOR
|
|
pe = ipc->y_u.Osblp.p0;
|
|
#else
|
|
pe = ipc->y_u.p.p;
|
|
#endif
|
|
ncl = ipc;
|
|
t = Yap_MkNewApplTerm(FunctorOr, 2);
|
|
break;
|
|
case _retry2:
|
|
case _retry3:
|
|
case _retry4:
|
|
pe = NULL;
|
|
t = TermNil;
|
|
ipc = NEXTOP(ipc,l);
|
|
if (!ncl)
|
|
ncl = ipc->y_u.Otapl.d;
|
|
go_on = TRUE;
|
|
break;
|
|
case _jump:
|
|
pe = NULL;
|
|
t = TermNil;
|
|
ipc = ipc->y_u.l.l;
|
|
go_on = TRUE;
|
|
break;
|
|
case _retry_c:
|
|
case _retry_userc:
|
|
ncl = NEXTOP(ipc,OtapFs);
|
|
pe = ipc->y_u.OtapFs.p;
|
|
t = BuildActivePred(pe, cptr->cp_args);
|
|
break;
|
|
case _retry_profiled:
|
|
case _count_retry:
|
|
pe = NULL;
|
|
t = TermNil;
|
|
ncl = ipc->y_u.Otapl.d;
|
|
ipc = NEXTOP(ipc,p);
|
|
go_on = TRUE;
|
|
break;
|
|
case _retry_me:
|
|
case _trust_me:
|
|
case _count_retry_me:
|
|
case _count_trust_me:
|
|
case _profiled_retry_me:
|
|
case _profiled_trust_me:
|
|
case _retry_and_mark:
|
|
case _profiled_retry_and_mark:
|
|
case _retry:
|
|
case _trust:
|
|
if (!ncl)
|
|
ncl = ipc->y_u.Otapl.d;
|
|
pe = ipc->y_u.Otapl.p;
|
|
t = BuildActivePred(pe, cptr->cp_args);
|
|
break;
|
|
case _retry_exo:
|
|
case _retry_all_exo:
|
|
ncl = NULL;
|
|
pe = ipc->y_u.lp.p;
|
|
t = BuildActivePred(pe, cptr->cp_args);
|
|
break;
|
|
case _Nstop:
|
|
{
|
|
Atom at = AtomLive;
|
|
t = MkAtomTerm(at);
|
|
pe = RepPredProp(PredPropByAtom(at, CurrentModule));
|
|
}
|
|
break;
|
|
case _Ystop:
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
return UnifyPredInfo(pe, 3 PASS_REGS) &&
|
|
Yap_unify(ARG2, taddr) &&
|
|
Yap_unify(ARG6,t) &&
|
|
Yap_unify(ARG7,MkIntegerTerm(ClauseId(ncl,pe)));
|
|
}
|
|
|
|
void
|
|
Yap_InitCdMgr(void)
|
|
{
|
|
CACHE_REGS
|
|
Term cm = CurrentModule;
|
|
|
|
Yap_InitCPred("in_use", 2, in_use, HiddenPredFlag|TestPredFlag | SafePredFlag|SyncPredFlag);
|
|
Yap_InitCPred("toggle_static_predicates_in_use", 0, p_toggle_static_predicates_in_use, HiddenPredFlag|SafePredFlag|SyncPredFlag);
|
|
|
|
}
|