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@@ -0,0 +1,306 @@
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+/*
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+ * (c) copyright 1990 by the Vrije Universiteit, Amsterdam, The Netherlands.
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+ * See the copyright notice in the ACK home directory, in the file "Copyright".
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+ *
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+ * Author: Ceriel J.H. Jacobs
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+ */
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+
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+/* D E B U G G E R S Y M B O L T A B L E */
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+
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+/* $Header$ */
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+
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+#include "dbsymtab.h"
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+
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+#ifdef DBSYMTAB
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+
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+#include <alloc.h>
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+#include <em_arith.h>
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+#include <em_label.h>
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+#include <em_code.h>
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+#include <flt_arith.h>
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+#include <stb.h>
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+
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+#include "LLlex.h"
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+#include "stack.h"
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+#include "def.h"
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+#include "type.h"
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+#include "struct.h"
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+#include "field.h"
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+#include "idf.h"
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+#include "Lpars.h"
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+#include "level.h"
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+
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+extern long full_mask[];
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+extern char *sprint();
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+
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+#define INCR_SIZE 64
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+
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+static struct db_str {
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+ unsigned sz;
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+ char *base;
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+ char *currpos;
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+} db_str;
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+
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+static
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+create_db_str()
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+{
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+ if (! db_str.base) {
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+ db_str.base = Malloc(INCR_SIZE);
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+ db_str.sz = INCR_SIZE;
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+ }
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+ db_str.currpos = db_str.base;
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+}
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+
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+static
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+addc_db_str(c)
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+ int c;
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+{
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+ int df = db_str.currpos - db_str.base;
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+ if (df >= db_str.sz-1) {
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+ db_str.sz += INCR_SIZE;
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+ db_str.base = Realloc(db_str.base, db_str.sz);
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+ db_str.currpos = db_str.base + df;
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+ }
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+ *db_str.currpos++ = c;
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+ *db_str.currpos = '\0';
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+}
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+
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+static
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+adds_db_str(s)
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+ char *s;
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+{
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+ while (*s) addc_db_str(*s++);
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+}
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+
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+static
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+stb_type(tp)
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+ register struct type *tp;
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+{
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+ char buf[128];
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+ static int stb_count;
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+ long l;
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+
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+ if (tp->tp_dbindex > 0) {
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+ adds_db_str(sprint(buf, "%d", tp->tp_dbindex));
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+ return;
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+ }
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+ if (tp->tp_dbindex < 0 && tp->tp_size < 0) {
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+ adds_db_str(sprint(buf, "%d", -tp->tp_dbindex));
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+ return;
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+ }
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+ if (tp->tp_dbindex <= 0) {
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+ tp->tp_dbindex = ++stb_count;
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+ }
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+ adds_db_str(sprint(buf, "%d=", tp->tp_dbindex));
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+ switch(tp->tp_fund) {
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+ /* simple types ... */
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+ case VOID:
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+ adds_db_str(sprint(buf, "%d", void_type->tp_dbindex));
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+ break;
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+ case INT:
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+ case LONG:
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+ case CHAR:
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+ case SHORT:
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+ l = full_mask[(int)tp->tp_size];
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+ if (tp->tp_unsigned) {
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+ adds_db_str(sprint(buf,
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+ "r%d;0;%ld",
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+ tp->tp_dbindex,
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+ l));
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+ }
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+ else {
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+ l &= ~ (1L << ((int)tp->tp_size * 8 - 1));
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+ adds_db_str(sprint(buf,
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+ "r%d;%ld;%ld",
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+ tp->tp_dbindex,
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+ -l-1,
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+ l));
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+ }
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+ break;
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+ case FLOAT:
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+ case DOUBLE:
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+ adds_db_str(sprint(buf,
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+ "r%d;%ld;0",
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+ tp->tp_dbindex,
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+ (long)tp->tp_size));
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+ break;
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+
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+ /* constructed types ... */
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+ case POINTER:
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+ addc_db_str('*');
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+ stb_type(tp->tp_up);
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+ break;
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+ case ARRAY:
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+ if (tp->tp_size > 0) {
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+ adds_db_str("ar");
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+ stb_type(int_type);
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+ adds_db_str(sprint(buf, ";0;%ld;", tp->tp_size / tp->tp_up->tp_size - 1));
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+ stb_type(tp->tp_up);
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+ }
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+ break;
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+ case ENUM:
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+ if (tp->tp_size < 0) {
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+ adds_db_str(sprint(buf,
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+ "xe%s:",
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+ tp->tp_idf->id_text));
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+ tp->tp_dbindex = -tp->tp_dbindex;
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+ break;
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+ }
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+ addc_db_str('e');
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+ {
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+ register struct stack_entry *se = local_level->sl_entry;
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+
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+ while (se) {
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+ register struct def *edef = se->se_idf->id_def;
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+ while (edef) {
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+ if (edef->df_type == tp &&
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+ edef->df_sc == ENUM) {
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+ adds_db_str(sprint(buf,
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+ "%s:%ld,",
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+ se->se_idf->id_text,
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+ edef->df_address));
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+ }
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+ edef = edef->next;
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+ }
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+ se = se->next;
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+ }
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+ }
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+ addc_db_str(';');
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+ break;
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+ case STRUCT:
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+ case UNION:
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+ if (tp->tp_size < 0) {
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+ adds_db_str(sprint(buf,
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+ "x%c%s:",
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+ tp->tp_fund == STRUCT ? 's' : 'u',
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+ tp->tp_idf->id_text));
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+ tp->tp_dbindex = -tp->tp_dbindex;
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+ break;
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+ }
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+ adds_db_str(sprint(buf,
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+ "%c%ld",
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+ tp->tp_fund == STRUCT ? 's' : 'u',
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+ tp->tp_size));
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+ {
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+ register struct sdef *sdef = tp->tp_sdef;
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+
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+ while (sdef) {
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+ adds_db_str(sdef->sd_idf->id_text);
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+ addc_db_str(':');
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+ if (sdef->sd_type->tp_fund == FIELD) {
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+ stb_type(sdef->sd_type->tp_up);
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+ adds_db_str(sprint(buf,
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+ ",%ld,%ld;",
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+ sdef->sd_offset*8+sdef->sd_type->tp_field->fd_shift,
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+ sdef->sd_type->tp_field->fd_width));
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+ }
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+ else {
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+ stb_type(sdef->sd_type);
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+ adds_db_str(sprint(buf,
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+ ",%ld,%ld;",
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+ sdef->sd_offset*8,
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+ sdef->sd_type->tp_size*8));
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+ }
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+ sdef = sdef->sd_sdef;
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+ }
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+ }
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+ addc_db_str(';');
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+ break;
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+ case FUNCTION:
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+ addc_db_str('f');
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+ stb_type(tp->tp_up);
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+ }
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+}
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+
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+stb_tag(tg, str)
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+ register struct tag *tg;
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+ char *str;
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+{
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+ create_db_str();
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+ adds_db_str(str);
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+ adds_db_str(":T");
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+ stb_type(tg->tg_type);
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+ addc_db_str(';');
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+ C_ms_stb_cst(db_str.base,
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+ N_LSYM,
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+ tg->tg_type == void_type || tg->tg_type->tp_size >= 32767
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+ ? 0
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+ : (int)tg->tg_type->tp_size,
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+ (arith) 0);
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+}
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+
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+stb_typedef(tp, str)
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+ register struct type *tp;
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+ char *str;
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+{
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+ create_db_str();
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+ adds_db_str(str);
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+ adds_db_str(":t");
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+ stb_type(tp);
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+ addc_db_str(';');
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+ C_ms_stb_cst(db_str.base,
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+ N_LSYM,
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+ tp == void_type || tp->tp_size >= 32767
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+ ? 0
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+ : (int)tp->tp_size,
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+ (arith) 0);
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+}
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+
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+stb_string(df, kind, str)
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+ register struct def *df;
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+ char *str;
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+{
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+ register struct type *tp = df->df_type;
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+
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+ create_db_str();
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+ adds_db_str(str);
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+ addc_db_str(':');
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+ switch(kind) {
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+ case FUNCTION:
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+ addc_db_str(df->df_sc == STATIC ? 'f' : 'F');
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+ stb_type(tp->tp_up);
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+ addc_db_str(';');
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+ C_ms_stb_pnam(db_str.base, N_FUN, 1 /* proclevel */, str);
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+ break;
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+ default:
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+ if (df->df_sc == FORMAL ||
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+ (df->df_sc == REGISTER && df->df_address >= 0)) {
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+ /* value parameter */
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+ addc_db_str('p');
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+ stb_type(tp);
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+ addc_db_str(';');
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+ C_ms_stb_cst(db_str.base, N_PSYM, 0, df->df_address);
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+ }
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+ else if (df->df_sc != AUTO && df->df_sc != REGISTER) {
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+ /* global */
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+ if (df->df_sc == STATIC) {
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+ if (df->df_level >= L_LOCAL) {
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+ addc_db_str('V');
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+ }
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+ else {
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+ addc_db_str('S');
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+ }
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+ }
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+ else {
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+ addc_db_str('G');
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+ }
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+ stb_type(tp);
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+ addc_db_str(';');
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+ if (df->df_sc == STATIC && df->df_level >= L_LOCAL) {
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+ C_ms_stb_dlb(db_str.base, N_LCSYM, 0, (label) df->df_address, (arith) 0);
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+ }
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+ else {
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+ C_ms_stb_dnam(db_str.base, N_LCSYM, 0, str, (arith) 0);
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+ }
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+ }
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+ else { /* local variable */
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+ stb_type(tp); /* assign type num to avoid
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+ difficult to parse string */
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+ addc_db_str(';');
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+ C_ms_stb_cst(db_str.base, N_LSYM, 0, df->df_address);
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+ }
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+ break;
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+ }
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+}
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+
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+#endif /* DBSYMTAB */
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