393 lines
8.6 KiB
C
393 lines
8.6 KiB
C
/* $Id$ */
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#include <alloc.h>
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#include <assert.h>
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#include <stdio.h>
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#include "type.h"
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#include "langdep.h"
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#include "scope.h"
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#include "symbol.h"
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#include "position.h"
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#include "idf.h"
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#include "expr.h"
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#include "misc.h"
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extern FILE *db_out;
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extern char *strindex();
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extern char *malloc();
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static
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print_unsigned(tp, v, format)
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p_type tp;
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long v;
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register char *format;
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{
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while (format && *format) {
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if (strindex("cdohx", *format)) break;
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format++;
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}
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switch(format == 0 ? 0 : *format) {
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case 'u':
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fprintf(db_out, currlang->uns_fmt, v);
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break;
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default:
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if (tp != uchar_type) {
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fprintf(db_out, currlang->uns_fmt, v);
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break;
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}
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/* fall through */
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case 'c':
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(*currlang->printchar)((int) v);
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break;
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case 'd':
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fprintf(db_out, currlang->decint_fmt, v);
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break;
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case 'o':
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fprintf(db_out, currlang->octint_fmt, v);
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break;
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case 'x':
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case 'h':
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fprintf(db_out, currlang->hexint_fmt, v);
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break;
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}
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}
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static
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print_literal(tp, v, compressed, format)
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p_type tp;
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long v;
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int compressed;
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char *format;
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{
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register struct literal *lit = tp->ty_literals;
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register int i;
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if (format) {
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print_unsigned(tp, v, format);
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return;
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}
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for (i = tp->ty_nenums; i; i--, lit++) {
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if (lit->lit_val == v) {
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fputs(lit->lit_name, db_out);
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break;
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}
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}
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if (! i) {
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fprintf(db_out,
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compressed ? "?%ld?" : "unknown enumeration value %ld",
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v);
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}
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}
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static
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print_integer(tp, v, format)
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p_type tp;
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long v;
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register char *format;
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{
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while (format && *format) {
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if (strindex("cdohx", *format)) break;
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format++;
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}
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switch(format == 0 ? 0 : *format) {
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default:
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if (tp != char_type) {
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fprintf(db_out, currlang->decint_fmt, v);
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break;
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}
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/* fall through */
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case 'c':
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(*currlang->printchar)((int) v);
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break;
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case 'd':
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fprintf(db_out, currlang->decint_fmt, v);
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break;
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case 'o':
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fprintf(db_out, currlang->octint_fmt, v);
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break;
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case 'x':
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case 'h':
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fprintf(db_out, currlang->hexint_fmt, v);
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break;
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case 'u':
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fprintf(db_out, currlang->uns_fmt, v);
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break;
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}
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}
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print_params(tp, AB, static_link)
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p_type tp;
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t_addr AB;
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{
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char *param_bytes;
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register char *p;
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register int i;
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register struct param *par;
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long size;
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if (! tp) return;
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assert(tp->ty_class == T_PROCEDURE);
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if ((i = tp->ty_nparams) == 0) return;
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/* get parameter bytes */
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par = tp->ty_params;
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size = tp->ty_nbparams;
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if (static_link) size += pointer_size;
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param_bytes = p = malloc((unsigned)size);
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if (! p) {
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error("could not allocate enough memory");
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return;
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}
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if (! get_bytes(size, AB, p)) {
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free(p);
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return;
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}
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while (i--) {
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p = param_bytes + par->par_off;
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if (par->par_kind == 'v' || par->par_kind == 'i') {
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/* call by reference parameter, or
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call by value parameter, but address is passed;
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try and get value.
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*/
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char *q;
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t_addr addr = get_int(p, pointer_size, T_UNSIGNED);
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if ((size = par->par_type->ty_size) == 0) {
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size = compute_size(par->par_type, param_bytes);
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}
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q = malloc((unsigned) size);
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if (! q) {
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error("could not allocate enough memory");
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free(param_bytes);
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return;
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}
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if (! get_bytes(size, addr, q)) {
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fprintf(db_out, currlang->addr_fmt, (long) addr);
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}
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else {
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print_val(par->par_type, size, q, 1, 0, (char *)0);
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}
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free(q);
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}
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else print_val(par->par_type, par->par_type->ty_size, p, 1, 0, (char *)0);
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if (i) fputs(", ", db_out);
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par++;
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}
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free(param_bytes);
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}
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print_val(tp, tp_sz, addr, compressed, indent, format)
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p_type tp; /* type of value to be printed */
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long tp_sz; /* size of object to be printed */
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char *addr; /* address to get value from */
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int compressed; /* for parameter lists */
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int indent; /* indentation */
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register char *format; /* format given or 0 */
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{
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register int i;
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long elsize;
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if (indent == 0) indent = 4;
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switch(tp->ty_class) {
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case T_CROSS:
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if (! tp->ty_cross) {
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error("unknown type");
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break;
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}
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print_val(tp->ty_cross, tp_sz, addr, compressed, indent, format);
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break;
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case T_SUBRANGE:
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print_val(tp->ty_base, tp_sz, addr, compressed, indent, format);
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break;
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case T_ARRAY:
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if ((!format || strindex(format, 'a') == 0) &&
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(tp->ty_elements == char_type ||
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tp->ty_elements == uchar_type)) {
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print_val(string_type, tp_sz, addr, compressed, indent, format);
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break;
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}
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if (compressed) {
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fprintf(db_out, currlang->open_array_display);
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}
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else {
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fprintf(db_out, "\n%*c%s%*c",
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indent,
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' ',
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currlang->open_array_display,
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4-strlen(currlang->open_array_display), ' ');
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}
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indent += 4;
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elsize = (*currlang->arrayelsize)(tp->ty_elements->ty_size);
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for (i = tp_sz/elsize; i; i--) {
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print_val(tp->ty_elements, tp->ty_elements->ty_size, addr, compressed, indent, format);
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addr += elsize;
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if (compressed && i > 1) {
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fprintf(db_out, ", ...");
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break;
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}
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if (i > 1) {
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putc(',', db_out);
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}
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fprintf(db_out, "\n%*c", i > 1 ? indent : indent - 4, ' ');
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}
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fprintf(db_out, currlang->close_array_display);
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indent -= 4;
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break;
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case T_STRUCT: {
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register struct fields *fld = tp->ty_fields;
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if (compressed) {
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fprintf(db_out, currlang->open_struct_display);
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}
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else {
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fprintf(db_out, "\n%*c%s%*c",
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indent,
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' ',
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currlang->open_struct_display,
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4-strlen(currlang->open_struct_display), ' ');
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}
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indent += 4;
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for (i = tp->ty_nfields; i; i--, fld++) {
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long sz = fld->fld_type->ty_size;
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if (! compressed) fprintf(db_out, "%s = ", fld->fld_name);
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if (fld->fld_bitsize < (sz << 3)) {
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/* apparently a bit field */
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/* ??? */
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fprintf(db_out, "<bitfield, %ld, %ld>", fld->fld_bitsize, sz);
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}
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else print_val(fld->fld_type, sz, addr+(fld->fld_pos>>3), compressed, indent, format);
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if (compressed && i > 1) {
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fprintf(db_out, ", ...");
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break;
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}
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if (i > 1) {
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putc(',', db_out);
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}
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fprintf(db_out, "\n%*c", i > 1 ? indent : indent - 4, ' ');
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}
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indent -= 4;
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fprintf(db_out, currlang->close_struct_display);
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break;
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}
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case T_UNION:
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fprintf(db_out, "<union>");
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break;
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case T_ENUM:
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print_literal(tp, get_int(addr, tp_sz, T_ENUM), compressed, format);
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break;
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case T_PROCEDURE: {
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register p_scope sc = get_scope_from_addr((t_addr) get_int(addr, pointer_size, T_UNSIGNED));
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if (sc && sc->sc_definedby) {
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fprintf(db_out, sc->sc_definedby->sy_idf->id_text);
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break;
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}
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}
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fprintf(db_out, currlang->addr_fmt, get_int(addr, pointer_size, T_UNSIGNED));
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break;
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case T_POINTER: {
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t_addr a = get_int(addr, tp_sz, T_UNSIGNED);
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fprintf(db_out, currlang->addr_fmt, a);
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if (format && strindex(format, 's') &&
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(tp->ty_ptrto == char_type || tp->ty_ptrto == uchar_type)) {
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char *naddr = malloc(512);
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if (! naddr) {
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fputs(" (could not allocate memory)", db_out);
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break;
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}
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if (! get_string(511L, a, naddr)) {
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fputs(" (not a valid pointer)", db_out);
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free(naddr);
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break;
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}
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fputs(" (", db_out);
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print_val(string_type, 512L, naddr, 0, indent, format);
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fputs(")", db_out);
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free(naddr);
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break;
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}
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if (tp->ty_ptrto->ty_class == T_PROCEDURE) {
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p_scope sc = get_scope_from_addr(a);
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if (sc && sc->sc_definedby && a == sc->sc_start) {
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fprintf(db_out, " (%s)", sc->sc_definedby->sy_idf->id_text);
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}
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}
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break;
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}
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case T_FILE:
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fprintf(db_out, "<file>");
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break;
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case T_SET: {
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long val = tp->ty_setlow;
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p_type base = tp->ty_setbase;
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long nelements = tp->ty_size << 3;
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int count = 0;
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int rsft = 3 + (int_size == 2 ? 1 : 2);
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long mask = int_size == 2 ? 017: 037;
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if (base->ty_class == T_SUBRANGE) base = base->ty_base;
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if (compressed) {
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fprintf(db_out, currlang->open_set_display);
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}
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else {
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fprintf(db_out, "\n%*c%s%*c",
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indent,
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' ',
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currlang->open_set_display,
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4-strlen(currlang->open_set_display), ' ');
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}
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indent += 4;
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for (i = 0; i < nelements; i++) {
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if (get_int(addr + (i >> rsft), int_size, T_UNSIGNED) & (1 << (i & mask))) {
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count++;
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if (count > 1) {
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if (compressed) {
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fprintf(db_out, ", ...");
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break;
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}
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fprintf(db_out, ",\n%*c", indent , ' ');
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}
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switch(base->ty_class) {
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case T_INTEGER:
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print_integer(base, val+i, format);
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break;
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case T_UNSIGNED:
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print_unsigned(base, val+i, format);
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break;
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case T_ENUM:
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print_literal(base, val+i, compressed, format);
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break;
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default:
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assert(0);
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}
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}
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}
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if (! compressed) {
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fprintf(db_out, "\n%*c", indent-4 , ' ');
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}
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indent -= 4;
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fprintf(db_out, currlang->close_set_display);
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}
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break;
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case T_REAL:
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fprintf(db_out, currlang->real_fmt, get_real(addr, tp->ty_size));
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break;
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case T_UNSIGNED:
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print_unsigned(tp, get_int(addr, tp_sz, T_UNSIGNED), format);
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break;
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case T_INTEGER:
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print_integer(tp, get_int(addr, tp_sz, T_INTEGER), format);
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break;
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case T_STRING:
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(*currlang->printstring)(db_out, addr, (int) tp_sz);
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break;
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default:
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assert(0);
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break;
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}
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}
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