321 lines
6.8 KiB
C
321 lines
6.8 KiB
C
/* $Header$ */
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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 "message.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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extern FILE *db_out;
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extern long float_size, pointer_size, int_size;
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static
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print_literal(tp, v)
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p_type tp;
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int v;
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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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for (i = tp->ty_nenums; i; i--, lit++) {
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if (lit->lit_val == v) {
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fprintf(db_out, lit->lit_name);
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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, "unknown enumeration value %d", v);
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}
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}
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static
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print_unsigned(tp, v)
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p_type tp;
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long v;
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{
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if (tp == uchar_type) {
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fprintf(db_out, currlang->char_fmt, (int) v);
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}
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else fprintf(db_out, currlang->uns_fmt, v);
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}
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static
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print_integer(tp, v)
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p_type tp;
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long v;
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{
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if (tp == char_type) {
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fprintf(db_out, currlang->char_fmt, (int) v);
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}
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else fprintf(db_out, currlang->decint_fmt, v);
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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 (static_link) p += pointer_size;
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if (! get_bytes(size, AB, param_bytes)) {
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error("no debuggee");
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free(param_bytes);
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return;
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}
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while (i--) {
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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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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 (! get_bytes(size, (t_addr) BUFTOA(p), q)) {
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fprintf(db_out, currlang->addr_fmt, BUFTOA(p));
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}
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else {
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print_val(par->par_type, size, q, 1, 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);
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if (i) fputs(", ", db_out);
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p += param_size(par->par_type, par->par_kind);
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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)
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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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{
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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_SUBRANGE:
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print_val(tp->ty_base, tp->ty_size, addr, compressed, indent);
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break;
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case T_ARRAY:
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if (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);
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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);
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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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fputc(',', 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, %d, %d>", fld->fld_bitsize, fld->fld_type->ty_size);
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}
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else print_val(fld->fld_type, sz, addr+(fld->fld_pos>>3), compressed, indent);
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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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fputc(',', 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, tp_sz == 1
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? (*addr & 0xFF)
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: tp_sz == 2
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? (BUFTOS(addr) & 0xFFFF)
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: (int) BUFTOL(addr));
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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) BUFTOA(addr));
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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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/* Fall through */
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case T_POINTER:
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fprintf(db_out, currlang->addr_fmt, (long) BUFTOA(addr));
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break;
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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 ? 0xFFFF : 0xFFFFFFFF;
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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 (*((int *) addr + (i >> rsft)) & (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);
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break;
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case T_UNSIGNED:
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print_unsigned(base, val+i);
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break;
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case T_ENUM:
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print_literal(base, (int)val+i);
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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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double val = tp->ty_size == float_size
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? BUFTOF(addr)
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: BUFTOD(addr);
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fprintf(db_out, currlang->real_fmt, val);
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break;
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}
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case T_UNSIGNED:
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print_unsigned(tp, tp_sz == 1
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? (*addr & 0xFF)
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: tp_sz == 2
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? (BUFTOS(addr) & 0xFFFF)
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: BUFTOL(addr));
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break;
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case T_INTEGER:
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print_integer(tp, tp_sz == 1
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? *addr
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: tp_sz == 2
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? BUFTOS(addr)
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: BUFTOL(addr));
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break;
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case T_STRING:
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(*currlang->printstring)(addr);
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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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int
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print_sym(sym)
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p_symbol sym;
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{
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char *buf;
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long size;
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if (get_value(sym, &buf, &size)) {
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fputs(" = ", db_out);
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print_val(sym->sy_type, size, buf, 0, 0);
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if (buf) free(buf);
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fputs("\n", db_out);
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return 1;
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}
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return 0;
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}
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