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- /*
- * (c) copyright 1990 by the Vrije Universiteit, Amsterdam, The Netherlands.
- * See the copyright notice in the ACK home directory, in the file "Copyright".
- *
- * Author: Ceriel J.H. Jacobs
- */
- /* D E B U G G E R S Y M B O L T A B L E */
- /* $Id$ */
- #include "dbsymtab.h"
- #ifdef DBSYMTAB
- #include <alloc.h>
- #include <em_arith.h>
- #include <em_label.h>
- #include <em_code.h>
- #include <flt_arith.h>
- #include <stb.h>
- #include "LLlex.h"
- #include "def.h"
- #include "type.h"
- #include "idf.h"
- #include "scope.h"
- #include "main.h"
- extern int gdb_flag;
- #define INCR_SIZE 64
- extern int proclevel;
- extern char *sprint();
- static struct db_str {
- unsigned sz;
- char *base;
- char *currpos;
- } db_str;
- static
- create_db_str()
- {
- if (! db_str.base) {
- db_str.base = Malloc(INCR_SIZE);
- db_str.sz = INCR_SIZE;
- }
- db_str.currpos = db_str.base;
- }
- static
- addc_db_str(c)
- int c;
- {
- int df = db_str.currpos - db_str.base;
- if (df >= db_str.sz-1) {
- db_str.sz += INCR_SIZE;
- db_str.base = Realloc(db_str.base, db_str.sz);
- db_str.currpos = db_str.base + df;
- }
- *db_str.currpos++ = c;
- *db_str.currpos = '\0';
- }
- static
- adds_db_str(s)
- char *s;
- {
- while (*s) addc_db_str(*s++);
- }
- static
- stb_type(tp, assign_num)
- register t_type *tp;
- {
- char buf[128];
- static int stb_count;
- if (tp->tp_dbindex > 0) {
- adds_db_str(sprint(buf, "%d", tp->tp_dbindex));
- return;
- }
- if (tp->tp_dbindex < 0) {
- if (tp->tp_next == 0) {
- adds_db_str(sprint(buf, "%d", -tp->tp_dbindex));
- return;
- }
- tp->tp_dbindex = -tp->tp_dbindex;
- }
- if (tp->tp_dbindex == 0 && assign_num) {
- tp->tp_dbindex = ++stb_count;
- }
- if (tp->tp_dbindex > 0) {
- adds_db_str(sprint(buf, "%d=", tp->tp_dbindex));
- }
- if (tp == void_type) {
- adds_db_str(sprint(buf, "%d", tp->tp_dbindex));
- return;
- }
- switch(tp->tp_fund) {
- /* simple types ... */
- case T_INTEGER:
- adds_db_str(sprint(buf,
- "r%d;%ld;%ld",
- tp->tp_dbindex,
- (long) min_int[(int)tp->tp_size],
- (long) max_int[(int)tp->tp_size]));
- break;
- case T_CARDINAL:
- adds_db_str(sprint(buf,
- "r%d;0;-1",
- tp->tp_dbindex));
- break;
- case T_REAL:
- adds_db_str(sprint(buf,
- "r%d;%ld;0",
- tp->tp_dbindex,
- (long)tp->tp_size));
- break;
- case T_CHAR:
- adds_db_str(sprint(buf,
- "r%d;0;255",
- tp->tp_dbindex));
- break;
- case T_WORD:
- if (tp->tp_size == word_size) {
- adds_db_str(sprint(buf,
- "r%d;0;-1",
- tp->tp_dbindex));
- }
- else {
- adds_db_str(sprint(buf,
- "r%d;0;255",
- tp->tp_dbindex));
- }
- break;
- /* constructed types ... */
- case T_SUBRANGE:
- adds_db_str(sprint(buf,
- "r%d;%ld;%ld",
- tp->tp_next->tp_dbindex,
- (long) tp->sub_lb,
- (long) tp->sub_ub));
- break;
- case T_EQUAL:
- stb_type(tp->tp_next, 0);
- if (tp->tp_dbindex < 0) tp->tp_dbindex = -tp->tp_dbindex;
- break;
- case T_HIDDEN:
- if (DefinitionModule && CurrVis == Defined->mod_vis) {
- tp->tp_dbindex = - ++stb_count;
- adds_db_str(sprint(buf, "%d", -tp->tp_dbindex));
- }
- else {
- /* ??? what to do here??? */
- addc_db_str('*');
- stb_type(void_type, 0);
- /* ??? this certainly is not correct */
- }
- break;
- case T_POINTER:
- if (tp->tp_next) {
- addc_db_str('*');
- stb_type(tp->tp_next, 0);
- if (tp->tp_dbindex < 0) tp->tp_dbindex = -tp->tp_dbindex;
- }
- else {
- tp->tp_dbindex = - ++stb_count;
- adds_db_str(sprint(buf, "%d", -tp->tp_dbindex));
- }
- break;
- case T_SET:
- addc_db_str('S');
- stb_type(tp->tp_next, 0);
- adds_db_str(sprint(buf, ";%ld;%ld;", tp->tp_size, tp->set_low));
- break;
- case T_ARRAY:
- addc_db_str('a');
- if (IsConformantArray(tp)) {
- addc_db_str('r');
- stb_type(tp->tp_next, 0);
- adds_db_str(sprint(buf, ";0;A%ld", tp->arr_high));
- }
- else {
- stb_type(tp->tp_next, 0);
- }
- addc_db_str(';');
- stb_type(tp->arr_elem, 0);
- break;
- case T_ENUMERATION:
- addc_db_str('e');
- {
- register struct def *edef = tp->enm_enums;
- while (edef) {
- adds_db_str(sprint(buf, "%s:%ld,",
- edef->df_idf->id_text,
- edef->enm_val));
- edef = edef->enm_next;
- }
- }
- addc_db_str(';');
- break;
- case T_RECORD:
- adds_db_str(sprint(buf, "s%ld", tp->tp_size));
- {
- register struct def *sdef = tp->rec_scope->sc_def;
- while (sdef) {
- adds_db_str(sdef->df_idf->id_text);
- addc_db_str(':');
- stb_type(sdef->df_type, 0);
- adds_db_str(sprint(buf,
- ",%ld,%ld;",
- sdef->fld_off*8,
- sdef->df_type->tp_size*8));
- sdef = sdef->df_nextinscope;
- }
- }
- addc_db_str(';');
- break;
- case T_PROCEDURE:
- if (gdb_flag) {
- addc_db_str('f');
- stb_type(tp->tp_next ? tp->tp_next : void_type, 0);
- break;
- }
- addc_db_str('Q');
- stb_type(tp->tp_next ? tp->tp_next : void_type, 0);
- {
- register struct paramlist *p = tp->prc_params;
- int paramcount = 0;
- while (p) {
- paramcount++;
- p = p->par_next;
- }
- adds_db_str(sprint(buf, ",%d;", paramcount));
- p = tp->prc_params;
- while (p) {
- addc_db_str(IsVarParam(p)
- ? 'v'
- : IsConformantArray(TypeOfParam(p))
- ? 'i'
- : 'p');
- stb_type(TypeOfParam(p), 0);
- addc_db_str(';');
- p = p->par_next;
- }
- }
- }
- }
- stb_addtp(s, tp)
- char *s;
- t_type *tp;
- {
- create_db_str();
- adds_db_str(s);
- addc_db_str(':');
- addc_db_str('t');
- stb_type(tp, 1);
- addc_db_str(';');
- C_ms_stb_cst(db_str.base,
- N_LSYM,
- tp == void_type || tp->tp_size >= max_int[2]
- ? 0
- : (int)tp->tp_size,
- (arith) 0);
- }
- stb_string(df, kind)
- register t_def *df;
- {
- register t_type *tp = df->df_type;
- char buf[64];
- create_db_str();
- adds_db_str(df->df_idf->id_text);
- addc_db_str(':');
- switch(kind) {
- case D_MODULE:
- if (gdb_flag) {
- addc_db_str('F');
- stb_type(void_type, 0);
- }
- else {
- adds_db_str(sprint(buf, "M%d;", df->mod_vis->sc_count));
- }
- C_ms_stb_pnam(db_str.base, N_FUN, gdb_flag ? 0 : proclevel, df->mod_vis->sc_scope->sc_name);
- break;
- case D_PROCEDURE:
- if (gdb_flag) {
- addc_db_str('f');
- }
- else adds_db_str(sprint(buf, "Q%d;", df->prc_vis->sc_count));
- stb_type(tp->tp_next ? tp->tp_next : void_type, 0);
- if (gdb_flag) {
- t_scopelist *sc = df->prc_vis;
- sc = enclosing(sc);
- while (sc) {
- t_def *d = sc->sc_scope->sc_definedby;
- if (d && d->df_kind == D_PROCEDURE) {
- adds_db_str(sprint(buf, ",%s", d->df_idf->id_text));
- break;
- }
- sc = enclosing(sc);
- }
- }
- else addc_db_str(';');
- C_ms_stb_pnam(db_str.base, N_FUN, gdb_flag ? 0 : proclevel, df->prc_vis->sc_scope->sc_name);
- break;
- case D_END:
- if (gdb_flag) break;
- adds_db_str(sprint(buf, "E%d;", df->mod_vis->sc_count));
- C_ms_stb_cst(db_str.base, N_SCOPE, proclevel, (arith) 0);
- break;
- case D_PEND:
- if (gdb_flag) break;
- adds_db_str(sprint(buf, "E%d;", df->prc_vis->sc_count));
- C_ms_stb_cst(db_str.base, N_SCOPE, proclevel, (arith) 0);
- break;
- case D_VARIABLE:
- if (DefinitionModule && CurrVis != Defined->mod_vis) break;
- if (df->df_flags & D_VARPAR) { /* VAR parameter */
- addc_db_str('v');
- stb_type(tp, 0);
- addc_db_str(';');
- C_ms_stb_cst(db_str.base, N_PSYM, 0, df->var_off);
- }
- else if (df->df_flags & D_VALPAR) { /* value parameter */
- addc_db_str(IsConformantArray(tp)
- ? 'i'
- : 'p');
- stb_type(tp, 0);
- addc_db_str(';');
- C_ms_stb_cst(db_str.base, N_PSYM, 0, df->var_off);
- }
- else if (!proclevel ||
- (df->df_flags & D_ADDRGIVEN)) { /* global */
- int knd = N_LCSYM;
- if (df->df_flags & D_EXPORTED) {
- knd = N_GSYM;
- addc_db_str('G');
- }
- else {
- addc_db_str('S');
- }
- stb_type(tp, 0);
- addc_db_str(';');
- if (df->df_flags & D_ADDRGIVEN) {
- C_ms_stb_cst(db_str.base, knd, 0, df->var_off);
- }
- else {
- C_ms_stb_dnam(db_str.base, knd, 0, df->var_name, (arith) 0);
- }
- }
- else { /* local variable */
- stb_type(tp, 1); /* assign type num to avoid
- difficult to parse string */
- addc_db_str(';');
- C_ms_stb_cst(db_str.base, N_LSYM, 0, df->var_off);
- }
- break;
- case D_TYPE:
- addc_db_str('t');
- stb_type(tp, 1);
- addc_db_str(';');
- C_ms_stb_cst(db_str.base,
- N_LSYM,
- tp == void_type || tp->tp_size >= max_int[2]
- ? 0
- : (int)tp->tp_size,
- (arith) 0);
- break;
- case D_CONST:
- if (DefinitionModule && CurrVis != Defined->mod_vis) break;
- addc_db_str('c');
- addc_db_str('=');
- tp = BaseType(tp);
- switch(tp->tp_fund) {
- case T_INTEGER:
- case T_INTORCARD:
- case T_CARDINAL:
- case T_WORD:
- case T_POINTER:
- case T_PROCEDURE:
- adds_db_str(sprint(buf, "i%ld;", df->con_const.TOK_INT));
- break;
- case T_CHAR:
- adds_db_str(sprint(buf, "c%ld;", df->con_const.TOK_INT));
- break;
- case T_REAL:
- addc_db_str('r');
- if (! df->con_const.TOK_RSTR) {
- char buf2[FLT_STRLEN];
- flt_flt2str(&df->con_const.TOK_RVAL, buf2, FLT_STRLEN);
- adds_db_str(buf2);
- }
- else adds_db_str(df->con_const.TOK_RSTR);
- addc_db_str(';');
- break;
- case T_STRING: {
- register char *p = df->con_const.TOK_STR;
- adds_db_str("s'");
- while (*p) {
- if (*p == '\'' || *p == '\\') {
- addc_db_str('\\');
- }
- addc_db_str(*p++);
- }
- adds_db_str("';");
- }
- break;
- case T_ENUMERATION:
- addc_db_str('e');
- stb_type(tp, 0);
- adds_db_str(sprint(buf, ",%ld;", df->con_const.TOK_INT));
- break;
- case T_SET: {
- register int i;
- addc_db_str('S');
- stb_type(tp, 0);
- for (i = 0; i < tp->tp_size; i++) {
- adds_db_str(sprint(buf, ",%ld",
- (df->con_const.tk_data.tk_set[i/(int) word_size] >> (8*(i%(int)word_size)))&0377));
- }
- addc_db_str(';');
- }
- break;
- }
- C_ms_stb_cst(db_str.base,
- N_LSYM,
- tp->tp_size < max_int[2] ? (int)tp->tp_size : 0,
- (arith) 0);
- break;
- }
- }
- #endif /* DBSYMTAB */
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