--- /dev/null
+/*
+ * (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 */
+
+/* $Header$ */
+
+#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 "stack.h"
+#include "def.h"
+#include "type.h"
+#include "struct.h"
+#include "field.h"
+#include "idf.h"
+#include "Lpars.h"
+#include "level.h"
+
+extern long full_mask[];
+extern char *sprint();
+
+#define INCR_SIZE 64
+
+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)
+ register struct type *tp;
+{
+ char buf[128];
+ static int stb_count;
+ long l;
+
+ if (tp->tp_dbindex > 0) {
+ adds_db_str(sprint(buf, "%d", tp->tp_dbindex));
+ return;
+ }
+ if (tp->tp_dbindex < 0 && tp->tp_size < 0) {
+ adds_db_str(sprint(buf, "%d", -tp->tp_dbindex));
+ return;
+ }
+ if (tp->tp_dbindex <= 0) {
+ tp->tp_dbindex = ++stb_count;
+ }
+ adds_db_str(sprint(buf, "%d=", tp->tp_dbindex));
+ switch(tp->tp_fund) {
+ /* simple types ... */
+ case VOID:
+ adds_db_str(sprint(buf, "%d", void_type->tp_dbindex));
+ break;
+ case INT:
+ case LONG:
+ case CHAR:
+ case SHORT:
+ l = full_mask[(int)tp->tp_size];
+ if (tp->tp_unsigned) {
+ adds_db_str(sprint(buf,
+ "r%d;0;%ld",
+ tp->tp_dbindex,
+ l));
+ }
+ else {
+ l &= ~ (1L << ((int)tp->tp_size * 8 - 1));
+ adds_db_str(sprint(buf,
+ "r%d;%ld;%ld",
+ tp->tp_dbindex,
+ -l-1,
+ l));
+ }
+ break;
+ case FLOAT:
+ case DOUBLE:
+ adds_db_str(sprint(buf,
+ "r%d;%ld;0",
+ tp->tp_dbindex,
+ (long)tp->tp_size));
+ break;
+
+ /* constructed types ... */
+ case POINTER:
+ addc_db_str('*');
+ stb_type(tp->tp_up);
+ break;
+ case ARRAY:
+ if (tp->tp_size > 0) {
+ adds_db_str("ar");
+ stb_type(int_type);
+ adds_db_str(sprint(buf, ";0;%ld;", tp->tp_size / tp->tp_up->tp_size - 1));
+ stb_type(tp->tp_up);
+ }
+ break;
+ case ENUM:
+ if (tp->tp_size < 0) {
+ adds_db_str(sprint(buf,
+ "xe%s:",
+ tp->tp_idf->id_text));
+ tp->tp_dbindex = -tp->tp_dbindex;
+ break;
+ }
+ addc_db_str('e');
+ {
+ register struct stack_entry *se = local_level->sl_entry;
+
+ while (se) {
+ register struct def *edef = se->se_idf->id_def;
+ while (edef) {
+ if (edef->df_type == tp &&
+ edef->df_sc == ENUM) {
+ adds_db_str(sprint(buf,
+ "%s:%ld,",
+ se->se_idf->id_text,
+ edef->df_address));
+ }
+ edef = edef->next;
+ }
+ se = se->next;
+ }
+ }
+ addc_db_str(';');
+ break;
+ case STRUCT:
+ case UNION:
+ if (tp->tp_size < 0) {
+ adds_db_str(sprint(buf,
+ "x%c%s:",
+ tp->tp_fund == STRUCT ? 's' : 'u',
+ tp->tp_idf->id_text));
+ tp->tp_dbindex = -tp->tp_dbindex;
+ break;
+ }
+ adds_db_str(sprint(buf,
+ "%c%ld",
+ tp->tp_fund == STRUCT ? 's' : 'u',
+ tp->tp_size));
+ {
+ register struct sdef *sdef = tp->tp_sdef;
+
+ while (sdef) {
+ adds_db_str(sdef->sd_idf->id_text);
+ addc_db_str(':');
+ if (sdef->sd_type->tp_fund == FIELD) {
+ stb_type(sdef->sd_type->tp_up);
+ adds_db_str(sprint(buf,
+ ",%ld,%ld;",
+ sdef->sd_offset*8+sdef->sd_type->tp_field->fd_shift,
+ sdef->sd_type->tp_field->fd_width));
+ }
+ else {
+ stb_type(sdef->sd_type);
+ adds_db_str(sprint(buf,
+ ",%ld,%ld;",
+ sdef->sd_offset*8,
+ sdef->sd_type->tp_size*8));
+ }
+ sdef = sdef->sd_sdef;
+ }
+ }
+ addc_db_str(';');
+ break;
+ case FUNCTION:
+ addc_db_str('f');
+ stb_type(tp->tp_up);
+ }
+}
+
+stb_tag(tg, str)
+ register struct tag *tg;
+ char *str;
+{
+ create_db_str();
+ adds_db_str(str);
+ adds_db_str(":T");
+ stb_type(tg->tg_type);
+ addc_db_str(';');
+ C_ms_stb_cst(db_str.base,
+ N_LSYM,
+ tg->tg_type == void_type || tg->tg_type->tp_size >= 32767
+ ? 0
+ : (int)tg->tg_type->tp_size,
+ (arith) 0);
+}
+
+stb_typedef(tp, str)
+ register struct type *tp;
+ char *str;
+{
+ create_db_str();
+ adds_db_str(str);
+ adds_db_str(":t");
+ stb_type(tp);
+ addc_db_str(';');
+ C_ms_stb_cst(db_str.base,
+ N_LSYM,
+ tp == void_type || tp->tp_size >= 32767
+ ? 0
+ : (int)tp->tp_size,
+ (arith) 0);
+}
+
+stb_string(df, kind, str)
+ register struct def *df;
+ char *str;
+{
+ register struct type *tp = df->df_type;
+
+ create_db_str();
+ adds_db_str(str);
+ addc_db_str(':');
+ switch(kind) {
+ case FUNCTION:
+ addc_db_str(df->df_sc == STATIC ? 'f' : 'F');
+ stb_type(tp->tp_up);
+ addc_db_str(';');
+ C_ms_stb_pnam(db_str.base, N_FUN, 1 /* proclevel */, str);
+ break;
+ default:
+ if (df->df_sc == FORMAL ||
+ (df->df_sc == REGISTER && df->df_address >= 0)) {
+ /* value parameter */
+ addc_db_str('p');
+ stb_type(tp);
+ addc_db_str(';');
+ C_ms_stb_cst(db_str.base, N_PSYM, 0, df->df_address);
+ }
+ else if (df->df_sc != AUTO && df->df_sc != REGISTER) {
+ /* global */
+ if (df->df_sc == STATIC) {
+ if (df->df_level >= L_LOCAL) {
+ addc_db_str('V');
+ }
+ else {
+ addc_db_str('S');
+ }
+ }
+ else {
+ addc_db_str('G');
+ }
+ stb_type(tp);
+ addc_db_str(';');
+ if (df->df_sc == STATIC && df->df_level >= L_LOCAL) {
+ C_ms_stb_dlb(db_str.base, N_LCSYM, 0, (label) df->df_address, (arith) 0);
+ }
+ else {
+ C_ms_stb_dnam(db_str.base, N_LCSYM, 0, str, (arith) 0);
+ }
+ }
+ else { /* local variable */
+ stb_type(tp); /* assign type num to avoid
+ difficult to parse string */
+ addc_db_str(';');
+ C_ms_stb_cst(db_str.base, N_LSYM, 0, df->df_address);
+ }
+ break;
+ }
+}
+
+#endif /* DBSYMTAB */
public / ack.git / commitdiff